NASA Technical Memorandum

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NASA TM- 108392

FY 1992 SCIENTIFIC AND TECHNICAL REPORTS, ARTICLES, PAPERS, AND PRESENTATIONS

Compiled by Joyce E. Turner Management Operations Office

October 1992

(NASA-T_4-108392) THF FY 1992 N93-20920 SCIENTIFIC AND TECHNICAL REPORTS, ARTICLES, PAPERS, ANO PRESENTATIONS (NASA) 70 Uncials

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George C. Marshall Space Flight Center

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FY 1992 Scientific and Technical Reports, Articles, Papers, and Presentations

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Compiled by Joyce E. Turner

7. PERFORMINGORGANIZATIONNAME(S)ANDADDRESS(ES) 8. PERFORMING ORGANIZATION REPORT NUMBER George C. Marshall Space Flight Center Marshall Space Flight Center, Alabama 35812

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This document presents formal NASA technical reports, papers published in technical journals, and presentations by MSFC personnel in FY92. It also includes papers of MSFC contractors.

After being announced in STAR, all of the NASA series reports may be obtained from the National Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161.

The information in this report may be of value to the scientific and engineering community in determining what information has been published and what is available.

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In accordance with the NASA Space Act of 1958, the MSFC has provided for the widest practicable and appropriate dissemination of information concerning its activities and the results thereof.

Since July 1, 1960, when the George C. Marshall Space Flight Center was organized, the reporting of scientific and engineering information has been considered a prime responsibility of the Center. Our credo has been that "research and development work is valuable, but only if its results can be communicated and made understandable to others."

The N number shown for the reports listed is assigned by the Center for AeroSpace Information (CASI), Baltimore, Maryland, indicating that the material is unclassified and unlimited and is available for public use. These publications can be purchased from the National Technical Information Service, 5285 Port Royal Road, Springfield, Virginia 22161. The N number should be cited when ordering.

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'_ || GEORGE C. MARSHALL SPACE FLIGHT CENTER Marshall Space Flight Center, Alabama

FY 1992 SCIENTIFIC AND TECHNICAL REPORTS, ARTICLES, PAPERS, AND PRESENTATIONS

TABLE OF CONTENTS

Page

NASA TECHNICAL MEMORANDA ...... 1

NASA TECHNICAL PAPERS ...... 14

MSFC CONFERENCE PUBLICATIONS ...... 19

NASA CONTRACTOR REPORTS ...... 20

MSFC PAPERS CLEARED FOR PRESENTATION ...... 30

iv NASA TECHNICAL MEMORANDUM

TM-103555 October 1991 investigation are described in detail. Moreover, non- NASA Marshall Space Flight Center Solar linear correlations between frequently encountered Observatory Report--January to June 1991. anomalous frequencies found in SSME dynamic data J.E. Smith. Space Science Laboratory. are discussed. Finally, the report concludes by N92-14958 recommending the continuation of low-pressure fuel (LPF) duct testing through laboratory flow simula- This report provides a description of the NASA tions and MSFC-managed technology test bed Marshall Space Flight Center's Solar Vector (TI_) SSME testing. Magnetograph Facility and gives a summary of its observations and data reduction during January-June TM-103558 December 1991 1991. The systems that make up the facility are a Characterization of the Effect of Boron Content magnetograph telescope, an H-alpha telescope, a on Weld Cracking of Inconel 718 Type Alloys-- Questar telescope, and a computer code. Center Director's Discretionary Fund Final Report. R.G. Thompson, W.R. Gamwell, and TM-103556 November 1991 T.W. Malone. Materials and Processes Labora- Atmospheric Environment for Space Shuttle tory. X92-10214 (STS-37) Launch. G.L. Jasper and G.W. Batts. Space Science Laboratory. N92-12375 Alloy 718 type compositions were studied to characterize the effect of boron content on their weld This report presents a summary of selected HAZ cracking. Alloy compositions studied were a atmospheric conditions observed near space shuttle combined subset of specimens from General Electric STS-37 launch time on April 5, 1991, at Kennedy and University of Alabama at Birmingham studies. Space Center, FL. Values of ambient pressure, tem- Microcrack data were available for all specimens perature, moisture, ground winds, visual observa- used in this study. Differential thermal analyses, tions (cloud), and winds aloft are included. The Gieeble thermal analysis, scanning auger sequence of prelaunch Jimsphere-measured vertical microscopy, and microstructural evaluations were wind profiles is given in this report. The final performed on all alloy compositions to investigate atmospheric tape, which consists of wind and ther- intergranular liquid formation and segregation modynamic parameters versus altitude, for STS-37 behavior effects of boron. vehicle ascent has been constructed. The STS-37 Four alloy 718 type compositions were cast ascent atmospheric data tape has been constructed within the MSFC Materials and Processes Labora- by Marshall Space Flight Center's Earth Science and tory. Varestraint (weldability) testing was performed Applications Division to provide an internally con- in an attempt to quantify the effect of boron on their sistent data set for use in postflight performance hot cracking susceptibility. assessments and represents the best estimate of the Boron was found to increase microfissuring launch environment to the 400,000-ft altitude that behavior in alloy 718 type compositions by its was traversed by the STS-37 vehicle. potency as a Laves former and by the resultant long solidification range that Laves-forming alloys have. TM- 103557 December 1991 It was found that carbon in large concentrations in High-Frequency Data Observations From Space these type alloys can significantly alter their solidifi- Shuttle Main Engine Low-Pressure Fuel Turbo- cation behavior and completely reverse the effect of pump Discharge Duct Flex Joint Tripod Failure a Laves former like boron. Investigation. T.F. Zoladz and R.A. Farr. Structures and Dynamics Laboratory. TM- 103559 December 1991 N92-13279 The Effects of Multiple Repairs on lnconel 718 Weld Mechanical Properties. C.K. Russell, This report summarizes observations made by A.C. Nunes, Jr., and D. Moore. Materials and MSFC Structures and Dynamics Laboratory Processes Laboratory. N92-14380 engineers during their participation in the space shuttle main engine (SSME) low-pressure fuel Inconel 718 weldments were repaired 3, 6, 9, turbopump discharge duct flex joint tripod failure and 13 times using the gas tungsten arc welding pro- investigation. New signal processing techniques cess. The welded panels were machined into used by the Component Assessment Branch and the mechanical test specimens, postweld heat treated, Induced Environments Branch during the failure and nondestructively inspected. Tensile properties NASA TECHNICAL MEMORANDUM

and high-cycle fatigue life were evaluated and the lent eddy effects on the liquid surface. In most cases, results compared to unrepaired weld properties. test data exhibited strong agreement with an analyti- Mechanical property data were analyzed using the cal model which accounts for tank heat transfer and statistical methods of difference in means for tensile thermodynamics in a 1-g environment. properties and difference in log means and Weibull analysis for high-cycle fatigue properties. TM-103562 December 1991 Statistical analysis performed on the data did not Lunar Mission Aerobrake Performance Study. show a significant decrease in tensile or high-cycle J. Mulqueen and D. Coughlin. Program fatigue properties due to the repeated repairs, Some Development Directorate and Systems Analysis degradation was observed in all properties; however, and Integration Laboratory. N92-15079 it was minimal. Nine lunar mission scenarios were developed to TM-103560 June 1992 show the transfer vehicle performance benefits of National Launch System Cycle 1 Loads and aerobraking into low-Earth orbit (LEO) upon Earth Models Data Book. F. Bugg, J. Brunty, return as opposed to an all-propulsive maneuver. G. Ernsberger, D. McGhee, L, Gagliano, The initial mass in LEO (IMLEO) of the lunar F. Harrington, D. Meyer, and E. Blades. Struc- transfer vehicle is considered the measure of vehicle tures and Dynamics Laboratory. N92-30215 performance, Four types of mission profiles in con- junction with two vehicle concepts were used to This document contains preliminary cycle 1 construct the scenarios. These nine scenarios were loads for the National Launch System NLS 1 and designed to represent a broad range of possible lunar NLS 2 vehicles. The loads provided and recom- missions so that a general knowledge base of aero- mended as design loads represent the maximum braking and lunar transfer vehicle performance loads expected during prelaunch and flight regimes, levels could be obtained. Also discussed in this i.e., limit loads, except that propellant tank ullage study are the mass sensitivities of each transfer pressure has not been included. Ullage pressure vehicle to changes in the selected design parameters: should be added to the loads book values for cases ISP, crew module mass, payload to surface, and where the addition results in higher loads. The loads aerobrake mass fraction. must be multiplied by the appropriate factors of A parametric study was performed on two of the safety to determine the ultimate loads for which the mission scenarios to help quantify the performance structure must be capable. benefits by adding a set of drop tanks to the vehicle. The parametric study also provides partial deriva- TM-103561 December 1991 tives which show the sensitivities of IMLEO to the No-Vent Fill Pressurization Tests Using a four design parameters listed above. The last section Cryogen Simulant. G.R. Schmidt, R.W. of this report is a ranking of the mission scenarios Carrigan, J.E. Hahs, D.A. Vaughan, and D.C. based on vehicle performance. Foust. Propulsion Laboratory. N92-15354 The intent of this report is to present vehicle performance levels only. No consideration is given This report describes the results of an experi- to the Earth-to-orbit vehicle, cost, or operational mental program which investigated the performance complexities such as rendezvous, aerobrake guid- of various no-vent fill techniques for tank-to-tank ance, or contingencies. liquid transfer. The tests were performed using a cryogen simulant (Freon-114) and a test-bed consist- TM-103563 December 1991 ing of a multiple tank/plumbing network that Differential Thermal Analysis of Lunar Soil enabled investigations of a variety of different inlet Simulant. D. Tucker and A. Setzer. Materials flow and active mixing regimes. Several results and and Processes Laboratory. N92-15951 conclusions were drawn from the 26 transfer experiments comprising the program. Most notable was Differential thermal analysis of lunar soil simu- the significant improvement in fill performance (i.e., lant known as "Minnesota Lunar Simulant-l" minimized fill time and maximized fill fraction) with (MLS-1) was performed. The MLS-1 was tested in increased agitation of the liquid surface. Another the as-received form, in glass form, and with was the close correlation between measured conden- additional silica. The silica addition was seen to sation rates and those predicted by recent theories depress nucleation events which leads to a better which express condensation as a function of turbu- glass former.

2 NASATECHNICALMEMORANDUM

TM-103564 January1992 dicta wide range of projectile diameters at a given Space Station Freedom Environmental Control velocity. Thus, it is very difficult to choose the and Life Support System Phase III Water "right" prediction equation. The thickness of the Recovery Test Stages 1A, 2A, and 3A Final single plate could have a large variation by choosing Report. R.M. Bagdigian, D.L. Carter, D.W. a different penetration equation. Even though all five Holder, C.F. McGriff, M.C. Roman, M.S. equations are empirically developed with various Traweek, and W.R. Williams. Structures and materials, and especially for aluminum alloys, one Dynamics Laboratory. X92-10218 cannot be confident in the shield design with the predictions obtained by the penetration equations A series of tests has been conducted at the without verifying by tests. NASA Marshall Space Flight Center (MSFC) to evaluate the performance of a predevelopment water TM- 103566 April 1992 recovery system. Potable, hygiene, and urine recla- Space Science Laboratory Publications and mation systems were integrated with end-use equip- Presentations January 1-December 31, 1991. ment items and successfully operated in open and Compiled by T.W. Moorehead. Space Science partially closed-loop modes, with man-in-the-loop, Laboratory. N92-25298 for a total of 28 days. Several significant subsystem physical anomalies were encountered during testing. This document lists the significant publications Reclaimed potable and hygiene water generally met and presentations of the Space Science Laboratory the current Space Station Freedom (S.S. Freedom) during the period January 1-December 31, 1991. water quality specifications for inorganic and micro- Entries in the main part of the document are cate- biological constituents, but exceeded the maximum gorized according to NASA Reports (arranged by allowable concentrations for total organic carbon report number), Open Literature, and Presentations (TOC). This report summarizes the test objectives, (arranged alphabetically by title). Also included for system design, test activities/protocols, significant completeness is an appendix (arranged by report results/anomalies, and major lessons learned. number) listing preprints issued by the Laboratory during this reporting period. Some of the preprints TM- 103565 December 1991 have not yet been published; those already published Single Wall Penetration Equations. K.B. are so indicated. Most of the articles listed under Hayashida and J.H. Robinson. Structures and Open Literature have appeared in refereed profes- Dynamics Laboratory. N92-16682 sional journals, books, or conference proceedings. Although many published abstracts are eventually This report compares five single plate penetra- expanded into full papers for publication in scientific tion equations for accuracy and effectiveness. These and technical journals, they are often sufficiently five equations are two well-known equations (Fish- comprehensive to include the significant results of Summers and Schmidt-Holsapple), two equations the research reported. Therefore, published abstracts developed for the Apollo project (Rockwell and are listed separately in a subsection under Open Johnson Space Center (JSC)), and one recently Literature. Questions or requests for additional revised from JSC (Cour-Palais). They were derived information about the entries in this report should be from test results, with velocities ranging up to directed to Ms. T. Moorehead (ES01; 544-7581) or 8 km/s. Microsoft Excel software was used to con- to one of the authors. The organizational code of the struct a spreadsheet to calculate the diameters and cognizant SSL branch or office is given at the end of masses of projectiles for various velocities, varying each entry. the material properties of both projectile and target for the five single plate penetration equations. The TM-103567 October 1991 results were plotted on diameter versus velocity FY 1991 Scientific and Technical Reports, graphs for ballistic and spallation limits using Articles, Papers, and Presentations. Compiled by Cricket Graph software, for velocities ranging from J.E. Turner. Management Operations Office. 2 to 15 km/s defined for the orbital debris. First, N92-17586 these equations were compared to each other, then each equation was compared with various aluminum This document presents formal NASA technical projectile densities. Finally, these equations were reports, papers published in technical journals, and compared with test results performed at JSC for the presentations by MSFC personnel in FY91. It also Marshall Space Flight Center. These equations pre- includes papers of MSFC contractors. NASATECHNICALMEMORANDUM

After being announced in STAR, all of the Rule and K.B. Hayashida. Structures and NASA series reports may be obtained from the Dynamics Laboratory. N92-18383 National Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161. This report describes the development of a com- The information in this report may be of value to puter program to predict the degradation of the insu- the scientific and engineering community in deter- lating capabilities of the multilayer insulation (MLI) mining what information has been published and blanket of Space Station Freedom due to a hyper- what is available. velocity impact with a space debris particle. A finite difference scheme is used for the calculations. The TM-103568 January 1992 computer program was written in Microsoft BASIC. Thermal Analysis Workbook. Edited by J.W. This report also describes a test program that was Owen. Structures and Dynamics Laboratory. undertaken to validate the numerical model. Twelve N92-70379 MLI specimens were impacted at hypervelocities with simulated debris particles using a light gas gun This workbook is intended to allow the user to at Marshall Space Flight Center. The impact- gain a better understanding of thermal analysis, damaged MLI specimens were then tested for insu- problem-solving techniques, and interpretation of lating capability in the space environment of the results. Many simple and complex engineering Sunspot thermal vacuum chamber at MSFC. Two problems are presented and solved. These are solved undamaged MLI specimens were also tested for using state-of-the-art thermal analysis codes, closed comparison with the test results of the damaged form solutions (which are used as "sanity checks" specimens. The numerical model was found to ade- for the codes), and many different numerical tech- quately predict the behavior of the MLI specimens in niques with explanations of the methods and the Sunspot chamber. A parameter, called diameter assumptions used in solving the problems. Physical ratio, was developed to relate the nominal MLI phenomena which are considered include conduc- impact damage to the apparent (for thermal analysis tion, convection, radiation, change of phase, com- purposes) impact damage based on the hypervelocity pressible and incompressible flow, N-dimensional impact conditions of a specimen. branching networks, conjugate thermal/hydraulic analysis, Joule-Thompson heating, analysis of gas TM-103571 January 1992 mixture concentrations, venting, ablation, and Optical Synthesizer for a Large Quadrant-Array related subjects. Some codes discussed include CCD Camera---Center Director's Discretionary SINDA, TRASYS, ANSYS, PATRAN, and other Fund Final Report (Project Number 90-11). M.J. job specific codes. Hagyard. Space Science Laboratory. N92-19001

TM-103569 November 1991 This document constitutes the final report for BUGS System Clock Distributor. T.M. Dietrich. MSFC Center Director's Discretionary Fund Project Space Science Laboratory. N92-20371 Number 90- I 1. The objective of this program was to design and develop an optical device, an optical syn- A printed circuit board which will provide thesizer, that focuses four contiguous quadrants of a external clocks and precisely measure the time at solar image on four spatially separated CCD arrays which events take place has been designed for the that are part of a unique CCD camera system. This Bristol University Gas Spectrometer (BUGS). The camera and the optical synthesizer will be part of the board, which has been designed to interface both new MSFC Experimental Vector Magnetograph, an mechanically and electrically to the CAMAC sys- instrument developed to measure the Sun's magnetic tem, has been named the BUGS system clock board. field as accurately as present technology allows. This document describes the board's design and how This report outlines the tasks undertaken in the pro- to use it. gram and presents the final detailed optical design.

TM-103570 January 1992 TM-103572 January 1992 SUNSPOT--A Program to Model the Behavior Space Transportation Architecture: Reliability of Hypervelocity Impact Damaged Multilayer Sensitivities. A.M. Williams. Preliminary Insulation in the Sunspot Thermal Vacuum Design Office. N92-19542 Chamber of Marshall Space Flight Center. W.K. NASATECHNICALMEMORANDUM

Thisreportis a sensitivityanalysisof thebene- TM-103574 January1992 fitsanddrawbacksassociatedwithaproposedEarth- AtmosphericEnvironmentfor SpaceShuttle to-orbitvehiclearchitecture.Thearchitecturerepre- Atlantis (STS-39) Launch. G.L. Jasper and G.W. sentsa fleetof six vehicles(twoexisting,fourpro- Batts. Space Science Laboratory. N92-20411 posed)that would be responsiblefor performing variousmissionsasmandatedbyNASAandUSAF. This report presents a summary of selected Eachvehiclehasaprescribedflight rateperyearfor atmospheric conditions observed near space shuttle aperiodof 31years. Atlantis STS-39 launch time on April 28, 1991, at By exposingthis fleetof vehiclesto a proba- Kennedy Space Center,FL. Values of ambient pres- bilistic environmentwherethe fleet experiences sure, temperature, moisture, ground winds, visual failures, downtimes,setbacks,etc., the analysis observations (cloud), and winds aloft are included. involvesdeterminingtheresiliencyandcostsasso- The sequence of prelaunch Jimsphere-measured ciatedwith the fleetof specificvehicle/subsystem vertical wind profiles is given in this report. The reliabilities. final atmospheric tape, which consists of wind and Theresourcesrequiredwereactualobserved thermodynamic parameters versus altitude, for STS- dataon thefailuresanddowntimesassociatedwith 39 vehicle ascent has been constructed. The STS-39 existingvehicles,databasedon engineeringjudg- ascent atmospheric data tape has been constructed mentfor proposedvehicles,andthedevelopmentof by Marshall Space Flight Center's Earth Science and asensitivityanalysisprogram. Applications Division to provide an internally consistent data set for use in postflight performance TM-103573 February1992 assessments and represents the best estimate of the A Real-TimeRecursiveFilter for theAttitude launch environment to the 400,000-ft altitude that Determination of the SpacelabInstrument was traversed by the STS-39 vehicle, PointingSubsystem.M.E.West.Structuresand DynamicsLaboratory. N92-19920 TM-103575 January 1992 Space Transportation System and Associated A real-time estimationfilter which reduces Payloads: Glossary, Acronyms, and Abbrevia- sensitivity to systemvariationsand reducesthe tions. Compiled by Management Operations amountof preflightcomputationisdevelopedforthe Office and Space Shuttle Projects Office. instrumentpointingsubsystem(IPS).TheIPSis a N92-22108 three-axisstabilizedplatform developedto point variousastronomicalobservationinstrumentsaboard This is a collection of some of the acronyms and the shuttle.Currently,theIPSutilizesa linearized abbreviations now in everyday use in the shuttle Kalmanfilter(LKF), with premissiondefinedgains, world. It is a combination of lists that have been to compensatefor systemdrifts andaccumulated prepared at Marshall Space Flight Center and attitudeerrors.Sincetheapriorigainsaregenerated Kennedy and Johnson Space Centers, places where for anexpectedsystem,variationsresultin a sub- intensive shuttle activities are being carried out. This optimalestimationprocess. list is intended as a guide or reference and should not Thisreportcomparestheperformanceof three be considered to have the status and sanction of a real-timeestimationfilterswithcurrentLKF imple- dictionary. mentation.AnextendedKalmanfilterandasecond- orderKalmanfilteraredevelopedto accountforthe TM-103576 February 1992 systemnonlinearities,while a linearKalmanfilter Space Station Freedom Delta Pressure Leakage implementationassumesthatthenonlinearitiesare Rate Comparison Test Data Analysis Report. negligible.The performanceof eachof the four E.B. Sorensen. Propulsion Laboratory. estimationfiltersarecomparedwithrespecttoaccu- N92-22032 racy,stability,settlingtime,robustness,andcompu- tationalrequirements.It is shownthat,for thecur- This report provides results of a series of tests rentIPSpointingrequirements,thelinear Kalman performed to identify the relationship between gas filter providesimprovedrobustnessovertheLKF leakage rates across a seal at various internal to with lesscomputationalrequirementsthanthetwo external pressure ratios. This report is intended to real-timenonlinearestimationfilters. complement the results and provide insight into the analysis technique used to obtain the results NASA TECHNICAL MEMORANDUM

presented in MSFC SSF/DEV/EL91-008, "Space TM-103579 April 1992 Station Freedom (S.S. Freedom) Seal Flaw Study Microbial Biofilm Studies of the Environmental With Delta Pressure Leak Rate Comparison Test Control and Life Support System Water Report." Recovery Test for Space Station Freedom. D.C. Obenhuber, T.L. Huff, and E.B. Rodgers. TM-103577 March 1992 Materials and Processes Laboratory. N92-22283 NASA Marshall Space Flight Center Solar Observatory Report--July-December 1991. J.E. NASA is developing a water recovery system Smith. Space Science Laboratory. N92-22387 (WRS) for Space Station Freedom to reclaim human waste water for reuse by astronauts as hygiene or This report provides a description of the NASA potable water. A water recovery test (WRT) cur- Marshall Space Flight Center's Solar Vector rently in progress investigates the performance of a Magnetograph Facility and gives a summary of its prototype of the WRS. Analysis of biofilm accumu- observations and data reduction during July- lation, the potential for microbially influenced corro- December 1991. The systems that make up the sion (MIC) in the WRT, and studies of iodine disin- facility are a magnetograph telescope, an H-alpha fection of biofilm are reported. telescope, a Questar telescope, and a computer code. Analysis of WRT components indicated the presence of organic deposits and biofilms in selected TM-103578 April 1992 tubing. Water samples for the WRT contained acid- High-Altitude Solar-Powered Platform. M.D. producing and sulfate-reducing organisms impli- Bailey and M.V. Bower. Structures and cated in corrosion processes. Corrosion of an Dynamics Laboratory. N92-21546 aluminum alloy was accelerated in the presence of these water samples; however, stainless steel corro- Solar power is a preeminent alternative to con- sion rates were not accelerated. ventional aircraft propulsion. Previously, relatively Biofilm iodine sensitivity tests using an experi- small solar-powered aircraft with limited usefulness mental laboratory-scale recycled water system con- have flown for short durations. With continued taining a microbial check valve (MCV) demon- advances in solar ceils, fuel cells, and composite strated that an iodine concentration of I to 2 mg/L materials technology, the solar-powered airplane is was ineffective in eliminating microbial biofilm. For no longer a simple curiosity constrained to flights of complete disinfection, an initial concentration of 16 several feet in altitude or minutes of duration. mg/L was required which was gradually reduced by A high-altitude solar-powered platform the MCV over 4 to 8 hours to 1 to 2 mg/L. This (HASPP) has several potential missions, including treatment may be useful in controlling biofilm communications and agriculture. In remote areas, a formation. HASPP could be used as a communications link. In large farming areas, a HASPP could perform remote TM- 103580 March 1992 sensing of crops. Testing and Analyses of Electrochemical Cells The impact of a HASPP in continuous flight for Using Frequency Response--Center Director's 1 year on an agriculture monitoring mission is pre- Discretionary Fund Final Report, Project No. sented. This mission provides farmers with near real- 90-18. O.A. Norton, Jr. and D.L. Thomas. time data twice daily from an altitude which allows Information and Electronic Systems Laboratory. excellent resolution on water conditions, crop N92-23437 diseases, and insect infestation. Accurate, timely data will enable farmers to increase their yield and The feasibility of electrochemical impedance efficiency. spectroscopy as a method for analyzing battery state A design for a HASPP for the foregoing mission of health and state of charge was investigated. is presented. In the design, power derived from solar Porous silver, zinc, nickel, and cadmium electrodes ceils covering the wings is used for propulsion, as well as silver/zinc cells were studied. State of avionics, and sensors. Excess power produced mid- charge could be correlated with impedance data for day will be stored in fuel cells for use at night to all but the nickel electrodes. State of health was cor- maintain altitude and course. related with impedance data for two silver/zinc cells, one apparently good and the other dead. The experimental data were fit to equivalent circuit models.

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TM-103581 May 1992 TM- 103584 June 1992 Coupled Loads Analysis for Space Shuttle Microbiology Report for Phase III Stage A Payloads. J. Eldridge. Structures and Dynamics Water Recovery Test. M.C. Roman and S.A. Laboratory. N92-24708 Minton. Structures and Dynamics Laboratory. X92-10382 This report describes a method for determining the transient response of, and the resultant loads in, a The Environmental Control and Life Support system exposed to predicted external forces. In this System (ECLSS) test program at NASA/Marshall case, the system consists of four racks mounted on Space Flight Center (MSFC) developed a physi- the inside of a space station resource node module cal/chemical treatment system to reclaim wastewater (SSRNMO) which is mounted in the payload bay of for reuse aboard Space Station Freedom (S.S. the space shuttle. The predicted external forces are Freedom). This report provides microbiological data forcing functions which envelop worst case forces gathered during phase III testing of the water applied to the shuttle during lift-off and landing. recovery test (WRT) which was conducted from This analysis, called a coupled loads analysis, is May through July, 1990. Phase III testing was con- used to; (a) couple the payload and shuttle models ducted in the Core Module Integration Facility together, (b) determine the transient response of the (CMIF) located in building 4755 at MSFC. The system; and then (c) recover payload loads, payload CMIF included a core module simulator (CMS) accelerations, and payload to shuttle interface forces. containing separate potable and hygiene water reclamation hardware integrated with the End-Use TM- 103582 April 1992 Equipment Facility (EEF) which included exercise Performance of Thermal Control Tape in the equipment, shower, handwasher, clotheswasher, and Protection of Composite Materials to Space dishwasher. With the participation of human test Environmental Exposure. R.R. Kamenetzky and subjects, wastewater and metabolic condensate were A.F. Whitaker. Materials and Processes produced. Laboratory. N92-24982 TM- 103585 June 1992 Thermal control tape flown on the long duration Atmospheric Environment for Space Shuttle exposure facility (LDEF) experiment AO171 has Columbia (STS-40) Launch. G.L. Jasper and shown to be effective in protecting epoxy fiberglass G.W. Batts. Space Science Laboratory. composites from atomic oxygen and ultraviolet (UV) N92-26288 degradation. The tape adhesive performed well. The aluminum, however, appeared to have become This report presents a summary of selected embrittled by the 5.8 years of space exposure. atmospheric conditions observed near Space Shuttle Columbia (STS-40) launch time on June 5, 1991, at TM-103583 June 1992 Kennedy Space Center, Florida. Values of ambient Report for Neutral Buoyancy Simulations of pressure, temperature, moisture, ground winds, Transfer Orbit Stage Contingency visual observations (cloud), and winds aloft are Extravehicular Activities. J.D. Sexton. Mission included. The sequence of prelaunch Jimsphere- Operations Laboratory. N92-26268 measured vertical wind profiles is given in this report. The final atmospheric tape, which consists of The transfer orbit stage (TOS) will propel the wind and thermodynamic parameters versus altitude, advanced communications technology satellite for STS-40 vehicle ascent has been constructed. The (ACTS) from the space shuttle to an Earth geosyn- STS-40 ascent atmospheric data tape has been con- chronous transfer orbit. Two neutral buoyancy test structed by Marshall Space Flight Center's Earth series were conducted at MSFC to validate the Science and Applications Division to provide an extravehicular activities (EVA) contingency opera- internally consistent data set for use in postflight tions for the ACTS/TOS mission. This report delin- performance assessments and represents the best eates the results of the neutral buoyancy tests and estimate of the launch environment to the 400,000-ft gives a brief history of the TOS EVA program. Test altitude that was traversed by the STS-40 vehicle. numbers are: NBS-TOS-90.1 and NBS-TOS-91.1. NASA TECHNICAL MEMORANDUM

TM-103586 May 1992 Report (Project Number 89-06). J.P. Hale II. Taguchi Methods in Electronics--A Case Study. Mission Operations Laboratory. N92-28521 R. Kissel. Information and Electronic Systems Laboratory. N92 -28456 A two-phase effort was conducted to assess the capabilities and limitations of the DataGlove, a A pilot project in Taguchi methods was com- lightweight glove input device that can output sig- pleted using actual electronic hardware. The primary nals in real-time based on hand shape, orientation, purpose was to familiarize engineers and managers and movement. The first phase was a period for with the theory and mechanics of doing a Taguchi system integration, checkout, and familiarization in a experiment. The hardware selected was the National virtual environmenL The second phase was a formal Launch System (NLS) electromechanical actuator experiment using the DataGlove as an input device (EMA) control electronics. This is a 25-kW motor to control the protoflight manipulator arm controller. Actual preparation and test time was 3 to (PFMA)--a large telerobotic arm with an 8-ft reach. 4 weeks. Results were quite good since the predicted The first phase was used to explore and understand optimum set of component values also had the high- how the DataGlove functions in a virtual environ- est measured signal-to-noise ratio (S/N). ment, build a virtual PFMA, and consider and select a reasonable teleoperation control methodology. TM-103587 June 1992 Twelve volunteers (six males and six females) par- Assessment of a Head-Mounted Miniature ticipated in a 2x3 (x 2) full-factorial formal experi- Monitor---Center Director's Discretionary Fund ment using the DataGlove to control the PFMA in a Final Report (Project Number 89-07). J.P. Hale simple retraction, slewing, and insertion task. Two II. Mission Operations Laboratory,. N92-30381 within-subjects variables, time delay (0, 1, and 2 seconds) and PFMA wrist flexibility (rigid/flexible), Two experiments were conducted to assess the were manipulated. Gender served as a blocking capabilities and limitations of the Private Eye, a variable. A main effect of time delay was found for miniature, head-mounted monitor. The first experi- slewing and total task times. Correlations among ment compared the Private Eye with a CRT and bard questionnaire responses, and between questionnaire copy in both a constrained and unconstrained work responses and session mean scores and gender, were envelope. The task was a simulated maintenance and computed. The experimental data were also com- assembly task that required frequent reference to the pared with data collected in another study that used a displayed information. A main effect of presentation six degree-of-freedom hand controller to control the media indicated faster placement times using the PFMA in the same task. It was concluded that the CRT as compared with hard copy. There were no DataGlove is a legitimate teleoperations input device significant differences between the Private Eye and that provides a natural, intuitive user interface. From either the CRT or hard copy for identification, an operational point of view, it compares favorably placement, or total task times. The goal of the with other "standard" telerobotic input devices and second experiment was to determine the effects of should be considered in future trades in teleoperation various local visual parameters on the ability of the systems' designs. user to accurately perceive the information of the Private Eye. The task was an interactive video game. TM-103589 May 1992 No significant performance differences were found The Effect of Induced Charges on Low-Energy under either bright or dark ambient illumination Particle Trajectories Near Conducting and environments nor with either visually simple or Semiconducting Plates. V.N. Coffey. Space complex task backgrounds. Glare reflected off of the Science Laboratory. N92-28986 bezel surrounding the monitor did degrade performance. It was concluded that this head-mounted, The effect of the induced charge was found on miniature monitor could serve a useful role for in particles less than 1 eV as they passed through simu- situ operations, especially in microgravity environ- lated parallel, grounded channels that are compara- ments. ble in dimension to those that are presently in space plasma instruments which measure the flux of low- TM-103588 June 1992 energy ions. Applications were made to both con- Anthropomorphic Teleoperation: Controlling ducting and semiconducting channels that ranged in Remote Manipulators With the DataGlove-- length from 0.1 to 50 mm and in aspect ratio from 1 Center Director's Discretionary Fund Final to 100. The effect of the induced charge on particle NASATECHNICALMEMORANDUM

trajectoriesisillustrated,andresultsaregivenforthe Recommended texts for additional reading, and a reduction of the channel geometric factor as a func- discussion of the significance of fracture mechanics tion of particle energy due to the deviation of trajec- in structural design, are given. Grif-fith's criterion for tories from simple straight lines. Several configura- crack extension, Irwin's elastic stress field near the tions of channel aspect ratio and detector locations crack tip, and the influence of small-scale plasticity are considered. The effect is important only at very are discussed. Common stress intensity factor solu- low energies with small dimensions. tions and methods for determining them are included. Fracture toughness and subcritical crack TM- 103590 July 1992 growth are discussed. The application of fracture A Generalized Reusable Guidance Algorithm for mechanics to damage tolerance and fracture control Optimal Aerobraking. G.A. Dukeman. Systems is discussed. Several example problems and a prac- Analysis and Integration Laboratory. N92-28981 tice set of problems are given.

A practical real-time guidance algorithm has TM-103592 July 1992 been developed for guiding aerobraking vehicles in Comparison of Epifluorescent Viable Bacterial such a way that the maximum heating rate, the Count Methods. E.B. Rodgers and T.L. Huff. maximum structural loads, and the post-aeropass Materials and Processes Laboratory. N92-30305 delta-V requirement (for post-aeropass orbit insertion) are all minimized. The algorithm is general and Two methods, the 2-(4-lodophenyl)-3-(4-nitro- reusable in the sense that a minimum of assumptions phenyl)-5-phenyltetrazolium chloride (INT) method are made, thus minimizing the number of gains and and the direct viable count method (DVC), were mission-dependent parameters that must be labori- tested and compared for their efficacy for the ously determined prior to a particular mission. A determination of the viability of bacterial popula- particularly interesting feature is that inplane guid- tions. Use of the INT method results in the formation ance performance is tuned by simply adjusting one of a dark spot within each respiring cell. The DVC mission-dependent parameter, the bank margin; method results in elongation or swelling of growing similarly, the out-of-plane guidance performance is cells that are rendered incapable of cell division. tuned by simply adjusting a plane controller time Although both methods are subjective and can result constant. Other objectives in the algorithm develop- in false positive results, the DVC method is best ment are simplicity, efficiency, and ease of use. The suited to analysis of waters in which the number of algorithm is developed for, but not necessarily different types of organisms present in the sample is restricted to, a single pass mission and a trimmed assumed to be small, such as processed waters. The vehicle with bank angle modulation as the method of advantages and disadvantages of each metllod are trajectory control. Guidance performance is demon- discussed. strated via results obtained using this algorithm integrated into an aerobraking test-bed program. TM-103593 July 1992 Comparisons are made with numerical results from a Analysis of Debris From Spacelab Space Life version of the aerobraking guidance algorithm that Sciences-1. S.V. Caruso, E.B. Rodgers, and T.L. was to be flown onboard NASA's aeroassist flight Huff. Materials and Processes Laboratory. experiment (AFE) vehicle. Promising results are N92-32148 obtained with a minimum of development effort. Airborne microbiological and particulate con- TM-103591 July 1992 tamination generated aboard Spacelab modules is a Linear Elastic Fracture Mechanics Primer. C.D. potential safety hazard. In order to shed light on the Wilson. Structures and Dynamics Laboratory. characteristics of these contaminants, microbial and N92-30416 chemical/particulate analyses were performed on debris vacuumed from cabin and avionics air filters This primer is intended to remove the in the Space Life Sciences-1 (SLS-1) module of the "blackbox" perception of fracture mechanics com- Space Transportation System 40 (STS-40) mission 1 puter software by structural engineers. The funda- month after landing. The debris was sorted into mental concepts of linear elastic fracture mechanics categories (e.g., metal, nonmetal, hair/fur, synthetic are presented with emphasis on the practical applica- fibers, food particles, insect fragments, etc.). tion of fracture mechanics to real problems. Elemental analysis of particles was done by energy Numerous "rules of thumb" are provided. dispersive analysis of x rays (metals) and Fourier

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transform infrared spectroscopy(nonmetals). Extensive experimental investigation has been Scanningelectronrnicrographsweredoneof most carried out on used flight bearings of the phase II particles.Microbiologicalsamplesweregrownon high-pressure oxygen turbopump (HPOTP) of the R2A culturemediumandidentified.Clothingfibers space shuttle main engine (SSME) in order to dominatedthedebrisbyvolume.Otherparticles,all determine the wear mechanisms, dominant wear attributedto thecrew,resultedfrom abrasionsand modes, and their extent and causes. The report impactsduringmissionoperations(e.g.,paintchips, shows methodology, surface analysis techniques plastic,electronicscraps,clothingfibers).All bac- used, results, and discussion. The mode largely terial species identified are commonly found in the responsible for heavy bearing wear in lox has been atmosphere or on the human body, Bacillus sp. was identified as adhesive/shear peeling of the upper the most frequently seen bacterium. One of the bac- layers of bearing balls and rings. The mode relies on terial species, Enterobacter agglomerans, could the mechanisms of scale formation, breakdown, and cause illness in crew members with depressed removal, all of which are greatly enhanced by the immune systems. heavy oxidation environment of the HPOTP. Major causes of the high wear in bearings appear to be TM-103594 July 1992 lubrication and cooling, both inadequate for the A Reduced Gravity Fiber Pulling Apparatus. imposed conditions of operation. Numerous illustra- D.S. Tucker. Materials and Processes tions and evidence are given. Laboratory. N92-30971 TM- 103597 August 1992 A reduced gravity fiber pulling apparatus (FPA) NASA Marshall Space Flight Center Solar has been constructed in order to study the effects of Observatory Report--January-June 1992. J.E. gravity on glass fiber formation. The apparatus was Smith. Space Science Laboratory. N92-32478 specifically designed and built for use on NASA's KC-135 aircraft. Four flights have been completed to This report provides a description of the NASA date during which E-glass fiber was successfully Marshall Space Flight Center's Solar Vector produced in simulated lunar gravity. Magnetograph Facility and gives a summary of its observations and data reduction during January-June TM-103595 August 1992 1992. The systems that make up the facility are a A Study of Enhancing Critical Current Densities magnetograph telescope, an H-alpha telescope, a (Jc) and Critical Temperature (Tc) of High- Questar telescope, and a computer code. Temperature Superconductors--Center Direc- tor's Discretionary Fund Final Report (Project TM-103598 August 1992 90-N26). M. Vlasse, Space Science Laboratory. Development of Static System Procedures to N92-30902 Study Aquatic Biofilms and Their Responses to Disinfection and Invading Species. G.A. The development of pure phase 123 and Bi- Smithers. Materials and Processes Laboratory. based 2223 superconductors has been optimized. The preheat processing appears to be a very impor- The microbial ecology facility in the Analytical tant parameter in achieving optimal physical proper- and Physical Chemistry Branch at Marshall Space ties. The synthesis of pure phases in the Bi-based Flight Center is tasked with anticipation of potential system involves effects due to oxygen partial pres- microbial problems (and opportunities to exploit sure, time, and temperature. Orientation/melt-sinter- microorganisms) which may occur in partially ing effects include the extreme c-axis orientation of closed systems such as space stations/ Yttrium 123 and the Bismuth 2223, 2212, and 2201 vehicles/habitats and in water reclamation systems phases. This orientation is conducive to increasing therein, with particular emphasis on the degradation critical currents. A procedure was established to of materials. Within this context, procedures for substitute Sr for Ba in Y-123 single crystals. microbial biofilm research are being developed. Reported here is the development of static system TM-103596 July 1992 procedures to study aquatic biofilms and their Wear Mechanisms Found in Angular Contact responses to disinfection and invading species. Ball Bearings of the SSME's Lox Turbopumps. Preliminary investigations have been completed. As T.J. Chase. Propulsion Laboratory. procedures are refined, it will be possible to focus

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more closely on the elucidation of biofilm phenom- This report presents a summary of selected ena. atmospheric conditions observed near Space Shuttle Atlantis (STS-43) launch time on August 2, 1991, at TM-103600 August 1992 Kennedy Space Center, FL. Values of ambient pres- Fabrication of High Tc Superconductor Thin sure, temperature, moisture, ground winds, visual Film Devices--Center Director's Discretionary observations (cloud), and winds aloft are included. Fund Final Report (Project No. P17). R.C. Sisk. The sequence of prelaunch Jimsphere-measured Space Science Laboratory. vertical wind profiles is given in this report. The final atmospheric profile, which consists of wind and This report describes a technique for fabricating thermodynamic parameters versus altitude, for STS- superconducting weak link devices with micron- 43 vehicle ascent has been constructed. The STS-43 sized geometries etched in laser ablated ascent atmospheric data profile has been constructed Y1Ba2Cu3Ox (YBCO) thin films. Careful placement by Marshall Space Flight Center's Earth Science and of the weak link over naturally occurring grain Applications Division to provide an internally con- boundaries exhibited in some YBCO thin films pro- sistent data set for use in postflight performance duces Superconducting Quantum Interference assessments and represents the best estimate of the Devices (SQUID's) operating at 77 K. launch environment to the 400,000-ft altitude that was traversed by the STS-43 vehicle. TM-103601 August 1992 A Comparison of High Cycle Fatigue TM-103604 August 1992 Methodologies. D.A. Herda. Structures and Space Station Freedom Seal Leakage Rate Dynamics Laboratory. Analysis and Testing Summary: Air Leaks in Ambient Pressure Versus Vacuum Exit To evaluate alternate turbopump development Conditions. P.I. Rodriguez and R. Markovitch. (ATD) high cycle fatigue (HCF) methodology, a Structures and Dynamics Laboratory. comparison was made with the space shuttle main engine (SSME) methodology. This report documents This report is intended to reveal the apparent the comparison and evaluates ATD's HCF system. relationship of air seal leakage rates between 2 atmospheres (atm) to 1 arm and 1 atm to vacuum TM-103602 September 1992 conditions. Gas dynamic analysis is provided as well The Effect of Weld Porosity on the Cryogenic as data summarizing MSFC test report, "Space Fatigue Strength of ELI Grade Ti-5AI-2.5Sn. Station Freedom (S.S. Freedom) Seal Flaw Study P.R. Rogers, R.C. Lambdin, and D.E. Fox. With Delta Pressure Leak Rate Comparison Test Materials and Processes Laboratory. Report," SSF/DEV/ED91-008.

The effect of weld porosity on the fatigue TM-108373 April 1992 strength of ELI grade Ti-5A1-2.5Sn at cryogenic Hubble Space Telescope Thermal Cycle Test temperature was determined. A series of high cycle Report for Large Solar Array Samples With fatigue (HCF) and tensile tests were performed at BSFR Cells (Sample Numbers 703 and 704). -320 °F on specimens made from welded sheets of D.W. Alexander. Information and Electronic the material. All specimens were tested with weld Systems Laboratory. beads intact and some amount of weld offset. Specimens containing porosity and control speci- The Hubble space telescope (HST) solar array mens containing no porosity were tested. Results was designed to meet specific output power indicate that for the weld configuration tested, the requirements after 2 years in low-Earth orbit, and to fatigue life of the material is not affected by the remain operational for 5 years. The array, therefore, presence of spherical embedded pores. had to withstand 30,000 thermal cycles between approximately +100 and -100 °C. The ability of the TM- 103603 September 1992 array to meet this requirement was evaluated by Atmospheric Environment for Space Shuttle thermal cycle testing, in vacuum, two 128-cell solar Atlantis (STS-43) Launch. G.L. Jasper and G.W. cell modules that exactly duplicated the flight HST Batts. Space Science Laboratory. solar array design. Also, the ability of the flight array to survive an emergency deployment during

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the dark (cold) portion of an orbit was evaluated by TM-4350 February 1992 performing a cold-roll test using one module. Lightning Imaging Sensor (LIS) for the Earth Observing System. H.J. Christian, R.J. TM-108374 September 1992 Blakeslee, and S.J. Goodman. Space Science An Impact Investigation of the TOS-2 Case Laboratory. N92-20036 Damage. A.T. Nettles and D.G. Lance. Materials and Processes Laboratory. This document describes scientific objectives and instrument characteristics of a calibrated optical An impact investigation was performed on seg- lightning imaging sensor (LIS) for the Earth observ- ments of a transfer-to-orbit stage (TOS) ing system (EOS) and the tropical rainfall measuring Kevlar/epoxy pressure vessel to assist in the evalua- mission (TRMM) designed to acquire and investi- tion of the damage sustained by a TOS-2 motor case gate the distribution and variability of total lightning during a handling accident. The impact conditions on a global basis. The LIS is an EOS instrument, were replicated using an instrumented drop weight whose lineage can be traced to a lightning mapper tower with a modified impactor. No. 10 bolts were sensor planned for flight on the GOES series of used as impact tups to better simulate the accident. operational meteorological satellites. The LIS is The similarities of the surface damage between the conceptually a simple device, consisting of a staring specimens and the actual case were observed before imager optimized to detect and locate lightning. The the specimens were cross-sectionally cut and LIS will detect and locate lightning with storm scale examined. The results showed that, while no signifi- resolution 0.e., 5 to I0 kin) over a large region of the cant subsurface damage was observed in the test Earth' s surface along the orbital track of the satellite, specimens, the damage was subtle and could not be mark the time of occurrence of the lightning, and predicted by visual examination of the external sur- measure the radiant energy. The LIS will have a face or by available NDE methods. nearly uniform 90-percent detection efficiency within the area viewed by the sensor, and will detect TM-4340 February 1992 intracloud and cloud-to-ground discharges during Space Station Freedom Environmental Control day and night conditions. In addition, the LIS will and Life Support System Regenerative monitor individual storms and storm systems long Subsystem Selection. R.L. Carrasquillo, D.L. enough (i.e., 2 rain) to obtain a measure of the Carter, D.W. Holder, Jr., C.F. McGriff, and K.Y. lightning flashing rate in these storms when they are Ogle. Materials and Processes Laboratory. within the field of view of the LIS. The LIS X92-10278 attributes include low cost, low weight and power (15 kg, 30 W), low data rate (6 kb/s), and important In support of Space Station Freedom phase C/D science. The LIS will contribute to studies of the environmental control and life support systems hydrological cycle, general circulation and sea-sur- (ECLSS) regenerative systems development, com- face temperature variations, investigations of the parative testing was performed on predevelopment electrical coupling of thunderstorms with the iono- hardware of competing technologies for each sphere and magnetosphere, and observations and regenerative function. This testing was conducted by modeling of the global electric circuit. It will pro- the Boeing Aerospace and Electronics Company vide a global lightning climatology from which (BAE) at Marshall Space Flight Center (MSFC) changes, caused perhaps by subtle temperature from late 1989 through early 1990. The purpose of variations, will be readily detected. the test program was to collect data on latest generation hardware in order to make final technology TM-4353 February 1992 selections for each subassembly in the oxygen First International Microgravity Laboratory recovery and water reclamation strings. This report Experiment Descriptions--First Edition. T.Y. discusses the testing performed, test results, and Miller, Editor. Space Science Laboratory. evaluation of these results relative to subsystem N92-23600 selections for CO2 reduction, 02 generation, potable water processing, hygiene water processing, and This document contains brief descriptions of the urine processing. experiments for the first international microgravity laboratory (IML-1) which is scheduled for launch from the Kennedy Space Center aboard the orbiter Discovery in early 1992.

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TM-4388 June1992 Five scientists at MSFC/ESAD have EOS SCF Functional Requirements Document for investigator status. Each SCF has unique tasks which NASAJMSFCEarthScienceandApplications require the establishment of a computing facility Division--Data and Information System dedicated to accomplishing those tasks. An SCF (ESAD-DIS) Interoperability, 1992. J.B. Working Group was established at ESAD with the Stephens,and G.W. Grider. SpaceScience charter of defining the computing requirements of Laboratory. N92-26905 the individual SCF's and recommending options for meeting these requirements. The primary goal of the TheseESAD-DISinteroperabilityrequirements working group was to determine which computing are designedto quantify the EarthScienceand needs can be satisfied using either shared resources Applications Division's hardwareand software or separate but compatible resources, and which requirementsin termsof communicationsbetween needs require unique individual resources. The personalandvisualizationworkstationandmain- requirements investigated included CPU-intensive framecomputers.Theelectronicmailrequirements vector and scalar processing, visualization, data andLAN requirementsareaddressed.Theseinter- storage, connectivity, and I/O peripherals. A review operabilityrequirementsaretop-levelrequirements of computer industry directions and a market survey framedarounddefining the existingESAD-DIS of computing hardware provided information regard- interoperabilityand projectingknownnear-term ing important industry standards and candidate com- requirementsfor bothoperationalsupportandfor puting platforms. It was determined that the total managementplanning.Detailedrequirementswill be SCF computing requirements might be most effec- submittedon acase-by-casebasis.Thisdocumentis tively met using a hierarchy consisting of shared and alsointendedasan overviewof ESAD-DISinter- individual resources. This hierarchy is composed of operabilityfor newcomersand managementnot five major system types: (1) a supercomputer class familiarwith theseactivities.It isintendedasback- vector processor, (2) a high-end scalar multi- ground documentationto supportrequestsfor processor workstation, (3) a file server, (4) a few resourcesandsupportrequirements. medium- to high-end visualization workstations, and (5) several low- to medium-range personal graphics TM-4392 June1992 workstations. Specific recommendations for meeting Functional RequirementsDocumentfor the the needs of each of these types are presented. EarthObservingSystemDataandInformation System (EOS DIS) Scientific Computing Facilities (SCF) of the NASAJMSFCEarth ScienceandApplicationsDivision,1992.M.E. Botts, R.J. Phillips, J.V. Parker, and P.D. Wright. Space Science Laboratory. N92-28899

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TP-3160 October1991 cient operation over the lifetime of the station and An Examinationof the Damage Tolerance for the benefits of enhanced safety has been Enhancement of Carbon/Epoxy Using an Outer demonstrated. This paper describes the two bread- Lamina of Spectra®. D.G. Lance and A.T. boards and the hierarchical approach to automation Nettles. Materials and Processes Laboratory. which was developed through these projects. N92-11142 TP-3163 October 1991 Low-velocity instrumented impact testing was A Generalized Method for Multiple Robotic utilized to examine the effects of an outer lamina of Manipulator Programming Applied to Vertical- ultra-high molecular-weight polyethylene (Spectra) Up Welding. K.R. Fernandez, G.E. Cook, on the damage tolerance of carbon/epoxy com- K. Andersen, R.J. Barnett, and S. Zein-Sabattou. posites. Four types of 16-ply quasi-isotropic panels, Information and Electronic Systems Laboratory. (0, +45, 90, -45)s2 were tested. Some panels con- N92-11218 tained no Spectra, while others had a lamina of Spectra bonded to the top (impacted side), bottom, This paper describes the application of a weld or both surfaces of the composite plates. The speci- programming algorithm for vertical-up welding, mens were impacted with energies up to 8.5 J. which is frequently desired for variable polarity Force-time plots and maximum force versus impact plasma arc welding (VPPAW). The Basic algorithm energy graphs were generated for comparison pur- performs three tasks simultaneously: control of the poses. Specimens were also subjected to cross-sec- robotic mechanism so that proper torch motion is tional analysis and compression-after-impact tests. achieved while minimizing the sum-of-squares of The results show that while the Spectra improved the joint displacement; control of the torch while the maximum load that the panels could withstand part is maintained in a desired orientation; and con- before fiber breakage, the Spectra seemingly trol of the wire feed mechanism location with reduced the residual strength of the composites. respect to the moving welding torch. This algorithm has been presented and demonstrated in earlier TP-3161 October 1991 reports as applied to downhand welding, such as is Automating a Spacecraft Electrical Power required for gas tungsten arc welding (GTAW). System Using Expert Systems. L.F. Lollar. This paper also presents a modification of this Information and Electronic Systems Laboratory. algorithm which permits it to be used for vertical-up N92-12052 welding. The details of this modification are discussed and simulation examples are provided for Since Skylab, Marshall Space Flight Center illustration and verification. (MSFC) has recognized the need for large electrical power systems (EPS's) in upcoming spacecraft. The TP-3177 December 1991 operation of the spacecraft depends on the EPS. Optical Measurements on Solid Specimens of Therefore, it must be efficient, safe, and reliable. In Solid Rocket Motor Exhaust and Solid Rocket 1978, as a consequence of having to supply a large Motor Slag. F.E. Roberts, III. Materials and number of EPS personnel to monitor and control Processes Laboratory. N92-20949 Skylab, the Electrical Power Branch of MSFC began the autonomously managed power system (AMPS) Samples of alumina slag were investigated to aid project. This project resulted in the assembly of a the Earth Science and Applications Division at 25-kW high-voltage dc test facility and provided the Marshall Space Flight Center (MSFC). Alumina means of getting man out of the loop as much as from space motor propellant exhaust and space possible. AMPS includes several embedded con- motor propellant slag was examined as a component trollers which allow a significant level of of space refuse. Thermal emittance and solar autonomous operation. More recently, the Electrical absorptivity measurements were taken to support Division at MSFC has developed the space station their comparison with reflectance measurements module power management and distribution derived from actual debris. To determine the simi- (SSM/PMAD) breadboard to investigate managing larity between the samples, and space motor exhaust and distributing power in the Space Station Freedom or space motor slag, emittance and absorbance habitation and laboratory modules. Again, the results were correlated with an examination of requirement for a high level of autonomy for effi- specimen morphology.

14 NASATECHNICALPAPERS

TP-3178 December1991 these problems are rotor unbalance vibration, A NonlinearEstimatorfor Reconstructingthe dynamic instability, and subharmonic response to AngularVelocityof a SpacecraftWithoutRate unbalance excitation. Understanding these problems Gyros.M.E. PolitesandW.D.Lightsey.Struc- is complicated when nonlinearities are present, as turesandDynamicsLaboratory. N92-13343 they almost always are in actual hardware. For example, dynamic instabilities may manifest them- Thispaperpresentsanewschemefor estimating selves as limit cycle vibrations. In some cases, the the angularvelocity of a spacecraft without rate vibration levels are so high that the distinction gyros. It is based upon a nonlinear estimator whose between a divergent instability and a limit cycle is inputs are measured inertial vectors and their calcu- meaningless, This is because the machinery would lated time-derivatives relative to vehicle axes. It be destroyed in either case. In other cases, the limit works for all spacecraft attitudes and requires no cycle may appear at relatively small levels. These knowledge of attitude. It can use measurements from cases may appear to be benign; however, the a variety of onboard sensors like Sun sensors, star presence of the limit cycle may be an indication of trackers, or magnetometers, and in concert. It can an impending divergent instability. This matter is also use look angle measurements from onboard complicated by the fact that the frequency of the tracking antennas for tracking and data relay satel- limit cycle instability is frequently near one-half of lites or global positioning system satellites. In this the unbalance excitation synchronous frequency. paper, it is applied to a Sun point scheme on the This makes it difficult to distinguish between the Hubble space telescope assuming all or most of its limit cycle and a subharmonic response. onboard rate gyros have failed. Simulation results The focus of this work is an examination of are presented which verify it. rotordynamic systems which are simultaneously susceptible to limit cycle instability and subharmonic TP-3179 December 1991 response. Characteristics of each phenomenon are A Statistical Comparison of Two Carbon determined as well as their interrelationship. A Fiber/Epoxy Fabrication Techniques. A.J. normalized, single mass rotor model is examined as Hodge. Materials and Processes Laboratory. well as a complex model of the high-pressure fuel N92-20950 turbopump (HPFTP) of the space shuttle main engine (SSME). Entrainment of limit cycle instabil- A statistical comparison of the compression ity by subharmonic response is demonstrated for strengths of specimens that were fabricated by either both models. The nonuniqueness of the solution is a platen press or an autoclave were performed on also demonstrated. IM6/3501-6 carbon/epoxy composites of 16-ply (0,+45,90,--45)s2 lay-up configuration. The samples TP-3203 February 1992 were cured with the same parameters and processing Structural Deterministic Safety Factors Selection materials. It was found that the autoclaved panels Criteria and Verification. V. Verderaime. were thicker than the platen press-cured samples. Structures and Dynamics Laboratory. Two hundred samples of each type of cure process N92-19355 were compression tested. The autoclaved samples had an average strength of 450 MPa (65.5 ksi), while Though current deterministic safety factors are the press-cured samples had an average strength of arbitrarily and unaccountably specified, its ratio is 370 MPa (54.0 ksi). A Weibull analysis of the data rooted in resistive and applied stress probability dis- showed that there is only a 30-percent probability tributions. This study approached the deterministic that the two types of cure systems yield specimens method from a probabilistic concept leading to a that can be considered from the same family. more systematic and coherent philosophy and criterion for designing more uniform and reliable high- TP-3181 December 1991 performance structures. The deterministic method Limit Cycle Vibrations in Turbomachinery. S.G. was noted to consist of three safety factors--a stan- Ryan. Structures and Dynamics Laboratory. dard deviation multiplier of the applied stress distri- N92-14108 bution, a K-factor for the A- or B-basis material ultimate stress, and the conventional safety factor to High-performance turbomachinery is susceptible ensure that the applied stress does not operate in the to a wide variety of vibration problems. Some of inelastic zone of metallic materials. The conventional safety factor is specifically defined as the ratio

15 NASATECHNICALPAPERS

of ultimate to yield stresses. A deterministic safety Structures and Dynamics Laboratory at MSFC by index of the combined safety factors was derived Dr. Jen-Yi Jong of Wyle Laboratories. The new sig- from which the corresponding reliability proved the nal processing tool has proven very successful in deterministic method is not reliability sensitive. determining time-frequency representations of Bases for selecting safety factors are presented, and highly nonstationary multicomponent signals in both verification requirements are discussed. The sug- simulation and trials involving actual space shuttle gested deterministic approach is applicable to all main engine high-frequency data. The MWD departs NASA, DOD, and commercial high-performance from the classic Wigner distribution (WD) in that it structures under static stresses. effectively eliminates the cross coupling among positive frequency components in a multiple compo- TP-3213 March 1992 nent signal. This attribute of the MWD, which pre- The Role of Failure/Problems in Engineering: A vents the generation of "phantom" spectral peaks, Commentary on Failures Experienced--Lessons will undoubtedly increase the utility of the WD for Learned. R.S. Ryan. Structures and Dynamics real-world signal analysis applications which more Laboratory. N92-22235 often than not involve multicomponent signals.

This report presents the written version of a TP-3218 April 1992 series of seminars given to several aerospace com- The Effect of Acceleration Versus Displacement panies and three National Aeronautics and Space Methods on Steady-State Boundary Forces. D.S. Administration (NASA) Centers. The results are McGhee. Structures and Dynamics Laboratory. lessons learned through a study of the problems N92-21457 experienced in 35 years of engineering. The basic conclusion is that the primary cause of problems has When a substructure model is reduced by the not been missing technologies, as important as tech- Craig-Bampton method, a number of degrees-of- nology is, but the neglect of basic principles. freedom (DOF's) are retained as physical DOF's to Undergirding this is the lack of a systems focus from provide interface to other substructures. When more determining requirements through design, verifica- DOF's are retained in this interface than are actually tion, and operations phases. Many of the concepts required, the model is said to be over constrained. discussed are fundamental to total quality manage- The result of this, when using the displacement ment (TQM) and can be used to augment this method, is typically an inaccurate distribution of product enhancement philosophy. Fourteen princi- boundary forces. This inaccuracy also occurs when ples are addressed in this report with problems there are justifiably many interface DOF's which experienced used as examples. Included is a discus- result in an indeterminate interface. When the accel- sion of the implication of constraints, poorly defined eration method is used, this inaccuracy is overcome. requirements, and schedules. Design guidelines, However, many people do not fully understand this lessons learned, and future tasks are listed. Two method and the many ways of implementing it, and additional sections are included that deal with per- so its implementation is sometimes haphazard. sonal lessons learned and thoughts on future thrusts This study describes the acceleration and dis- (TQM). A separate report, to be published later, will placement methods for use in the recovery of contain synopses of tile problems experienced. They coupled system boundary forces. A simple 2-DOF will be documented by project and cause, system has been used for illustration. The effect of Approximately 175 problems have been treated to the choice of method for use with indeterminate or date. over-constrained boundaries has been investigated. It has specifically looked at results from a simple two- TP-3215 March 1992 dimensional beam problem using both methods. Time-Frequency Representation of a Highly In the space shuttle payload community, there Nonstationary Signal Via the Modified Wigner has been an increase in the use of over-constrained Distribution. T.F. Zoladz, J.H. Jones, and payload models. This has been, mainly, to afford J. Jong. Structures and Dynamics Laboratory. easy recovery of relative deflection data between the N92-20492 payload and the shuttle, While there has also been an increase in the use of the acceleration method for the This report presents a new signal analysis tech- recovery of payload displacements and forces, the nique called the modified Wigner distribution displacement method remains the method used for (MWD). The MWD has been developed for the recovering system displacements and forces. Much

16 NASATECHNICALPAPERS

workhasbeendone on the effects of Craig-Bampton pressure at the tangent point. The intention of this modal truncation on system displacements and study was to identify the importance of selecting forces; however, little work has been done on system proper locations for mounting strain gauges and to modal truncation (i.e., modes across the boundary). utilize the obtained results to anchor dynamic The findings of this study indicate the effect of this models for accurate structural and life assessments system level truncation is significant. This may be of the SSME ducts under dynamic environment. The particularly true for the 35-Hz system cutoff fre- finite element method was utilized in this study. quency that is required by the space shuttle. From this study's findings, recommendations for areas of TP-3249 June 1992 study with space shuttle payload systems are made. Definition and Design of an Experiment to Test Raster Scanning With Rotating Unbalanced- TP-3220 April 1992 Mass Devices on Gimbaled Payloads. W.D. Technique to Eliminate Computational Lightsey, D.C. Alhorn, and M.E. Polites. Instability in Multibody Simulations Employing Structures and Dynamics Laboratory. the Lagrange Multiplier. G. Watts. Structures N92-29677 and Dynamics Laboratory. N92-23436 This paper describes an experiment designed to This paper presents a programming technique to test the feasibility of using rotating unbalanced-mass eliminate computational instability in multibody (RUM) devices for line and raster scanning simulations that use the Lagrange multiplier. The gimbaled payloads, while expending very little computational instability occurs when the attached power. The experiment is configured for ground- bodies drift apart and violate the constraints. The based testing, but the scan concept is applicable to programming technique uses the constraint equation, ground-based, balloon-borne, and space-based pay- instead of integration, to determine the coordinates loads, as well as free-flying spacecraft. In this paper, that are not independent. Although the equations of the servos used in scanning are defined, the elec- motion are unchanged, a complete derivation of the tronic hardware is specified, and a computer simula- incorporation of the Lagrange multiplier into the tion model of the system is described. Simulation equation of motion for two bodies is presented. A results are presented that predict system performance listing of a digital computer program which uses the and verify the servo designs. programming technique to eliminate computational instability is also presented. The computer program TP-3275 August 1992 simulates a solid rocket booster and parachute con- Gibbs Free Energy of Reactions Involving Si-C, nected by a frictionless swivel. Si3-N4, H2, and 1-I2-O as a Function of Temperature and Pressure. M.A. Isham. TP-3248 June 1992 Materials and Processes Laboratory. N92-31278 Effect of Type of Load on Stress Analysis of Thin-Walled Ducts. J.B. Min and P.K. Silicon carbide (Si-C) and silicon nitride Aggarwal. Structures and Dynamics Laboratory. (Si3-N4) are considered for application as structural N92-26669 materials and coating in advanced propulsion systems including nuclear thermal. Three-dimensional The standard procedure for qualifying the design Gibbs free energy surfaces were constructed for of duct (pipe) systems in the space shuttle main reactions involving these materials in H2 and engine (SSME) has been fairly well defined. H2/H2-O. Free energy plots are functions of tem- However, since pipe elbows are quite common and perature and pressure. Calculations used the defini- important in the SSME duct systems, a clear under- tion of Gibbs free energy where the spontaneity of standing of the detailed stress profile of the compo- reactions is calculated as a function of temperature nents is necessary for accurate structural and life and pressure. assessments. This study was initiated to predict the Silicon carbide decomposes to Si and CH4 in stress profile at/near the tangent point along the pure H 2 and forms a Si-O 2 scale in a wet cross section of the duct under various types of atmosphere. Silicon nitride remains stable under all loads. Also, this study was further extended to conditions. There was no apparent difference in understand the stiffening effect on stresses due to reaction thermodynamics between ideal and Van tier Waals treatment of gaseous species.

17 NASA TECHNICAL PAPERS

TP-3277 August 1992 Explorer I, also tumbled out of control. Now, as we Applications of FEM and BEM in Two- launch the Mars observer and the Cassini spacecraft, Dimensional Fracture Mechanics Problems. J.B. stability and control have become a higher priority. Min, B.E. Steeve, and G.R. Swanson. Structures This paper reviews the flight control system design and Dynamics Laboratory. N92-31280 selection process using as an example a geostationary communication satellite which is to have a life A comparison of the finite element method expectancy from 10 to 14 years. (FEM) and boundary dement method (BEM) for the Disturbance torques including aerodynamic, solution of two-dimensional plane strain problems in magnetic, gravity gradient, solar, micrometeorite, fracture mechanics is presented in this paper. Stress debris, collision, and internal torques are assessed to intensity factors (SIF's) were calculated using both quantify the disturbance environment so that the methods for elastic plates with either a single-edge required compensating torques can be determined. crack or an inclined-edge crack. In particular, two Then control torque options including passive versus currently available programs, ANSYS for finite ele- active, momentum control, bias momentum, spin ment analysis and BEASY for boundary element stabilization, dual spin, gravity gradient, magnetic, analysis, were used. reaction wheels, control moment gyros, nutation dampers, inertia augmentation techniques, three-axis TP-3282 September 1992 control, reaction control system (RCS), and RCS Reconfiguring the RUM Experiment to Test sizing are considered. A flight control system design Circular Scanning With Rotating Unbalanced- is then selected, and preliminary stability criteria met Mass Devices on Gimbaled Payloads. M.E. by the control gains selection. Polites and D.C. Alhorn. Structures and Dynamics Laboratory. TP-3303 September 1992 The Effects of Compressive Preloads on the This paper describes a ground-based experiment Compression-After-Impact Strength of Carbon/ designed to prove the concept of circular scanning a Epoxy. MSFC Center Director's Discretionary gimbaled payload with rotating unbalanced-mass Fund Final Report, Project No. P-11. A.T. (RUM) devices. The experiment is a modified ver- Nettles and D.G. Lance. Materials and Processes sion of a similar experiment which demonstrates line Laboratory. and raster scanning with RUM's. In this paper, a description of the experiment hardware is presented, A preloading device was used to examine the and a detailed design of the servos used in scanning effects of compressive prestress on the compression- is given. A computer simulation model of the entire after-impact (CAI) strength of !6-ply, quasi- system is discussed, and simulation results are isotropic carbon epoxy test coupons. T300/934 included. These verify the servo designs and show material was evaluated at preloads from 200 to 4,000 the RUM's to be an extremely power-efficient lb at impact energies from 1 to 9 joules. IM7/8551-7 method for circular scanning. material was evaluated at preloads from 4,000 to 10,000 lb at impact energies from 4 to 16 joules. TP-3289 September 1992 Advanced design of experiments methodology was Spacecraft Flight Control System Design used to design and evaluate the test matrices. The Selection Process for a Geostationary results showed that no statistically significant change Communication Satellite. C. Barret. Structures in CAI strength could be attributed to the amount of and Dynamics Laboratory. compressive preload-.applied to the specimen.

The Earth's first artificial satellite, Sputnik I, slowly tumbled in orbit. The first U.S. satellite,

18 NASACONFERENCEPUBLICATIONS

CP-3139 February1992 CP- Third Conferenceon NDE for Aerospace Advanced Earth-to-Orbit Propulsion Tech- Requirements. K.W. Woodis and G.L. nology-1992, Volume I. R.J. Richmond and Workman,Compilers. X92-10319 S.T. Wu, Editors. CP-3140 February1992 CP- The1991NASAAerospaceBatteryWorkshop. Advanced Earth-to-Orbit Propulsion Tech- J.C.Brewer,Compiler. N92-22740 nology-1992, Volume II. R.J. Richmond and S.T. Wu, Editors. CP-3163 June1992 Tenth Workshop for ComputationalFluid CP- October 1992 DynamicApplicationsin RocketPropulsion. Second Workshop on Hydrogen Effects on R.W.Williams,Compiler. Materials in Propulsion Systems. B.N. Bhat, R.L. Dreshfield, and E.J. Vesely, Jr., Editors.

19 NASACONTRACTOR REPORTS (Abstracts for these reports may be obtained from STAR)

CR-4421 February 1992 CR-184219 August 1990 Recommendations for a Wind Profiling Network Polarization Effects (Tasks 3 and 4), Final to Support Space Shuttle Launches. R.J. Report. NAS8-36955. The University of Zamora. H-59348B. NOAA/Wave Propagation Alabama in Huntsville. N91-32221 Laboratory. N92-17072 CR-184220 February 1990 CR-4444 June 1992 Knowledge, Programming, and Programming Bivariate Extreme Value Distributions. Cultures: LISP, C, and ADA, Final Report. M. Elshamy. NAS8-37585. The University of NAS8-36955. The University of Alabama in Alabama in Huntsville. N92-27588 Huntsville. N92-17778

CR-184211 October 1991 CR-184221 January 1990 Impact of Recoverable Concepts on Manned Automatic Programming of Simulation Models, Mars Mission Program Cost. NAS8-35616. SRS Task 3, Final Report. NAS8-36955. The Technologies. X92-70327 University of Alabama in Huntsville. N92-12448 CR-184212 October 1991 Manned Mars Mission and Program Analyses CR- 184222 February 1990 Presented at NASA-MSFC November 1-2, A Natural Language Interface to Databases, 1987. NAS8-35616. SRS Technologies. Final Report. NAS8-36955. The University of X92-70008 Alabama in Huntsville. N92-13678

CR-184213 February 1990 CR- 184223 March 1990 Materials Processing in Low Gravity--Final General Purpose Intelligent Sensor Interface, Report. NAS8-36955. The University of Final Report. NAS8-36955. The University of Alabama in Huntsville. N92-12139 Alabama in Huntsville. N92-13418

CR-184214 September 1990 CR-184224 May 1990 Modelling Crystal Growth: Convection in an Combustion Instability Analysis, Final Report. Asymmetrically Heated Ampoule--Final NAS8-36955. The University of Alabama in Report. NAS8-36955. The University of Huntsville. N92-13295 Alabama in Huntsville. N92-10676 CR-184225 September 1990 CR-184215 February 1990 Contamination Study, Final Report. NAS8- Modifications to the Rapid Melt/Rapid Quench 36955. The University of Alabama in and Transparent Polymer Video Furnaces for the Huntsville. N92-10639 KC-135. NAS8-36955. The University of Alabama in Huntsville. N92-12231 CR-184226 July 1990 Characteristics and Performance of the Variable CR-184216 June 1990 Polarity Plasma Arc Welding Process Used in Automated Eddy Current Analysis of the Space Shuttle External Tank, Final Report. Materials--Final Report. NAS8-36955. The NAS8-36955. The University of Alabama in University of Alabama in Huntsville. Huntsville. N92-13431 N92-10200 CR-184227 October 1990 CR-184217 September 1990 Process Modelling for Space Station Turbulence Modeling-Computational Dynamics, Experiments, Final Report. NAS8-36955. The Final Report. NAS8-36955. The University of University of Alabama in Huntsville. Alabama in Huntsville. N92-10160 N92-10112

CR-184218 August 1990 CR-184228 June 1990 Polarization Effects (Tasks 1 and 2), Final Draft. PC Programs for the Prediction of the Linear NAS8-36955. The University of Alabama in Stability Behavior of Liquid Propellant Huntsville. N92-10638 Propulsion Systems and Application to Current

20 NASACONTRACTORREPORTS (Abstractsfor thesereportsmaybeobtainedfromSTAR) MSFCRocketEngineTestProgram,Volume1. 1990,ThroughJanuary9, 1991.NAS8-36955. NAS8-36955.The Universityof Alabamain TheUniversityof Alabamain Huntsville. Huntsville. N92-10042 N92-10340

CR-184229 May1990 CR- 184238 October 1990 Chemical Release and Radiation Effects Microgravity Liquid Propellant Management, Experiment,AdvancedPlannedFinalTechnical Final Report. NAS8-36955. The University of Reportfor thePeriodMay 19,1989,Through Alabama in Huntsville. N91-32236 May 19,1990.NAS8-36955,TheUniversityof Alabamain Huntsville. N92-12360 CR- 184239 March 1991 Velocity and Pressure Characteristics of a Model CR-184230 August1990 SSME High-Pressure Fuel Turbopump, Final GlassSampleCharacterization,Final Draft. Report. NAS8-36186. Scientific Research NAS8-36955.The Universityof Alabamain Associates, Inc. N92-12273 Huntsville. N92-10088 CR-184240 April 1990 CR-184231 December1990 Two-Color Holography Concept (T-Chi), Final High-TemperatureMaterialsCharacterization, Technical Report. NAS8-38078. The University Final Report.NAS8-36955.TheUniversityof of Alabama in Huntsville. N92-10183 Alabamain Huntsville. N92-10079 C R- 184241 January 1991 CR-184232 May1990 Users Manual for the IMA Program, Final CooperatingSystems:LayeredMAS, Final Report. NAS8-37850. Dynetics, Inc. Report. NAS8-36955. The University of N92-13679 Alabamain Huntsville. N92-10332 CR-184242 January 1991 CR-184233 October1991 Users Manual for the IMA Program, Final Methodologyfor AutomatingSoftwareSystems, Report, Appendix C, Profile Design Program Task 1 of the Foundationsfor Automating Listing. NAS8-37850. Dynetics, Inc. SoftwareSystems,Final Report.NAS8-36955. N92-13680 TheUniversityof Alabamain Huntsville. N92-10301 CR- 184243 October 1991 Evaluation of High Reynolds Number Flow in a CR-184234 March1990 180 ° Turnaround Duct. NASS-38186. Colorado Welding in Space Workshop, Final Report. State University. N92-11318 NAS8-36955. The University of Alabama in Huntsville. N92-12269 CR-184244 February 1991 Advanced X-Ray Astrophysics Facility CR-184235 February 1991 Expendable Launch Vehicle, Final Report. Differential Collision Cross Sections for Atomic NAS8-37710. TRW. X92-10004 Oxygen: Analysis of Space Flight Instruments for Solar Terrestrial Physics, Final Technical CR- 184245 September 1991 Progress Report. NAS8-36955. The University MLITEMP--A Computer Program to Predict of Alabama in Huntsville. N92-10613 the Thermal Effects Associated With Hypervelocity Impact Damage to Space Station CR- 184236 December 1990 MI.I. NAS8-38555. The University of Alabama, Expert Systems for Superalloy Studies, Final Tuscaloosa. N92-11079 Report. NAS8-36955. The University of Alabama in Huntsville. N92-10080 CR- 184246 February 1991 Investigation of Welding and Brazing of CR- 184237 January 1991 Molybdenum and TZM Alloy Tubes, Final Design Controls for Large Order Systems, Final Report. H-08064D. Southern Research Institute. Technical Report for the Period January 10, N91-17403

21 NASACONTRACTORREPORTS (Abstractsfor thesereportsmay be obtained from STAR)

CR-184247 September 1991 January 10, 1991, Through September 30, 1991. Advanced Life Support Study, Final Report. NAS8-36955. The University of Alabama in NAS8-38781. SRS Technologies. N92-14595 Huntsville. N92-31835

CR- 184248 September 1991 CR- 184257 October 1991 Volume lI--Appendix A, Task 1, Report Initial Optical Studies in the Holographic Ground Assessments of Life Support Technology Station, Final Report. NAS8-36955. The Evolution and Advanced Sensor Requirements. University of Alabama in Huntsville. NAS8-38781. SRS Technologies. N92-14591 N92-12239

CR-184249 September 1991 CR-184258 July 1991 Volume III Appendices B Through F. NAS8- X-Ray Microscope/Telescope Test and 38781. SRS Technologies. N92-14592 Alignment, Final Report. NAS8-36955. The University of Alabama in Huntsville. CR- 184250 September 1991 N92-13782 Volume IV, Appendix G, Task 7 Report, Advanced Instrumentation: Technology Data CR-184259 June 1991 Base Enhancement. NAS8-38781. SRS Tech- The Variable Polarity Plasma Arc Welding nologies, N92-14593 Process: Characteristics and Performance. NAS8-36955. The University of Alabama in CR- 184251 September 1991 Huntsville. N92-12279 Volume V, Appendix H, Task 8 Report, Clean Room Survey and Assessment. NAS8-38781. C R- 184260 November 1991 SRS Technologies. N92-14594 The Effects of Reynolds Number, Rotor Incidence Angle and Surface Roughness on the CR-184252 June 1991 Heat Transfer Distribution in a Large-Scale Hydrodynamic Design of Generic Pump Turbine Rotor Passage, Final Report, NAS8- Components, Final Technical Report. NAS8- 38870. United Technologies. N92-11297 38863. Rockwell International. N92-I 1361 CR- 184261 September 1991 CR- 184253 October 1991 Intelligent Robotic Systems Study (IRSS) Phase Research Reports--1991 NASA/ASEE Summer III Final Report. NAS8-36431. Martin Marietta. Faculty Fellowship Program, Final Report. N92-14671 NGT-001-008-021. The University of Alabama in Huntsville and Tuscaloosa. N92-15850 CR-184262 October 1991 Intelligent Robotic Systems Study (IRSS) Phase CR- 184254 August 1991 IV Final Report. NAS8-36431. Martin Marietta. Tethered Satellite System Dynamics and Control N92-14672 Review Panel and Related Activities, Final Report for Phase 3. NAS8-35835. Logicon CR- 184263 February 1991 Control Dynamics Co. N92-13141 Nonlinear Rotordynamics Analysis. NAS8- 37465. Texas A&M University. N92-14344 CR-184255 September 1991 Chemical Release and Radiation Effects CR- 184264 February 1990 Experiment (CRRES) Educational Planning and Solid Propulsion Integrity Program Nozzle Coordination, Final Technical Report for the Work Package Quarterly Review and Technical Period February 14, 1991 Through September Interchange, Final Report. NAS8-37801. 20, 1991. NAS8-36955. The University of Hercules Industry Team. X92-I0121 AlabaJna in Huntsville. N92-12362 CR-184265 December 1990 CR- 184256 September 1991 CMA90S Input Guide and User's Manual, Final Automated Payload Experiment Tool Feasibility Report. NAS8-37801. Hercules Aerospace Co. Study, Final Technical Report for the Period X92-10204

22 NASACONTRACTORREPORTS (AbstractsforthesereportsmaybeobtainedfromSTAR) CR-184266 May1991 ProcessingFacility (MMPF), Final Report. BondlineWork Package4.0,AnnualReportm NAS8-37746.FWGAssociates,Inc. 1990, Solid Propulsion Integrity Program N92-18927 (SPIP). NAS8-37802.ScienceApplications InternationalCorp. X92-10231 CR-184275 September1991 Pultrusion ProcessCharacterization,Final CR-184267 September1989 Report. NAS8-37193. The University of NASA/MSFC Solid Propulsion Test Beds Mississippi. N92-19167 Assessment and Recommended Future Directions,FinalReport.NAS8-37801.Hercules CR-184276 November1991 AerospaceCo. X92-10096 Airfoil VibrationDamperProgramFinalReport. NAS8-36820.RockwellInternationalCorp. CR-184268 June1991 N92-14391 TimeLag ThermocoupleCompensationBased on InstalledTimeConstantMeasurement,Final CR-184277 June1991 Report.NAS8-37801.HerculesAerospaceCo./ Hard X-Ray ImagingGraphicsDevelopment LockheedMissilesandSpaceCo. X92-10202 andLiteratureSearch,Final ReportJune1990 ThroughJune1991.NAS8-36955.The Uni- CR-184269 October1991 versityof Alabamain Huntsville. N92-25953 X-Ray MicroscopeAssemblyand Alignment Support and Advanced X-Ray Microscope CR-184278 November1991 Designand Analysis,Final Report,May 10, ProcessModelingfor KC-135Aircraft. NAS8- 1990,to September30, 1991.H-06853D.The 36955. The University of Alabama in Universityof AlabamaatBirmingham. Huntsville. N92-18347 N92-15752 CR-184279 September1991 CR-184270 February1991 Engine Data Interpretation System (EDIS) Rover Nuclear Rocket Engine Program (PhaseII) FinalReport,Periodof Performance Overviewof RoverEngineTests,FinalReport. October30, 1990,to July 29, 1991.NAS8- NAS8-37814.SverdrupCorp. N92-15117 36955. The University of Alabama in Huntsville, N92-15123 CR-184271 December1991 Containerless High TemperatureProperty CR- 184280 November 1991 Measurements,FinalTechnicalReportContract Materials Processing in Low Gravity, Final PeriodSeptember21,1988,to October31,1991. Report. NAS8-36955. The University of Intersonics,Inc. N92-15196 Alabama in Huntsville. N92-20198

CR-184272 December 1991 CR- 184281 November 1991 Transpiration Cooled Throat for Hydrocarbon Spectroscopy and Multivariate Analyses Rocket Engines, Final Report. NAS8-36952. Applications Related to Solid Rocket Nozzle GenCorp Aerojet. N92-17495 Bondline, Final Report. NAS8-36955. The University of Alabama in Huntsville. CR-184273 August 1991 N92-14134 The Solid Propellant Rocket Motor Performance Computer Program (SPP) Version 7.0 Volume CR- 184282 January 1992 VII: Alternate Grain Design and Ballistics Frequency Response Measurements in Battery Analysis, Final Report October 1988 to August Electrodes, Final Report. NAS8-36955. The 1991. NAS8-37890. Software and Engineering University of Alabama in Huntsville. Associates, Inc. X92-10287 N92-18466

CR- 184274 October 1991 CR- 184283 December 1991 Chemical Hazards Database and Detection Propellant Variability Assessment, Final Report. System for Microgravity and Materials NAS8-36955. The University of Alabama in Huntsville. N92-18264

23 NASA CONTRACTOR REPORTS (Abstracts for these reports may be obtained from STAR)

CR-184284 July 1991 1986, to December 19, 1991. NAS8-37301. Model Studies on the Role of Moist Convention Universities Space Research Association. as a Mechanism for Interaction Between the X92-90406 Mesoscales, Final Project Report. NAS8-37141. Meso, Inc. N92-20670 CR- 184294 March 1992 Flexible Body Control Using Neural Networks. CR- 184285 July 1991 NAS8-36955. The University of Alabama in Observation and Numerical Simulation of a Huntsville. N92-20275 Convective Initiation During COHMEX, Project Report. NAS8-37141. Meso, Inc. N92-19922 CR-184295 February 1991 Internal Ballistics Model Update for ASRM CR-184286 June 1990 Dome, Final Report for August 31, 1990, to Chemical Reaction of Atomic Oxygen With February 20, 1991. NAS8-36955. The Uni- Evaporated Films of Copper, Final Report, Part versity of Alabama in Huntsville. N92-21213 IV. NAS8-36471. Auburn University. N92-20435 CR-184296 February 1991 Complex Burn Region Module (BRM) Update, CR-184287 October 1990 Final Report for November 1, 1989, Through Evaluation of RSRM Case Hardware Fretting September 20, 1990. NAS8-36955. The Uni- Concerns. NAS8-30490. Thiokol Corp. versity of Alabama in Huntsville. N92-20681 N92-20243 CR-184297 January 1992 CR-184288 November 1990 Experimental Uncertainty Survey and Flight Set 360L009 (STS-36) Case and Seals Assessment. NAS8-38609. The University of Component, Final Report. NAS8-30490. Alabama in Huntsville. N92-20443 Thiokol Corp. N92-20070 CR-184298 February 1992 CR-184289 October 1990 Data Acquisition and Analysis--Solar Vector Similarity Analysis for the Use of the 1U50228- Magnetosphere, Final August Through 47 O-Ring in the S&A Assembly. NAS8-30490. December 1991. NAS8-38609. The University Thiokol Corp. N92-20244 of Alabama in Huntsville. N92-20661

CR-184290 February 1992 CR-184299 January 1992 An Investigation Into Geometry and Mach 6 Electroformed Nickel Nozzle Microstructural Effects Upon the Ultimate Refurbishment FNAS Investigation of Ultra- Tensile Strengths of Butt Welds, Final Report. Smooth Surfaces, Final Report. NAS8-38609. NAS8-38671. Nichols Research Corp. The University of Alabama in Huntsville. N92-16372 N92-21494

CR- 184291 December 1991 CR- 184300 January 1992 Analysis of the Potential Application of the Science Definition of the Inner Magnetosphere Davenport/Short Information Technology Model Imager Mission, Final Report August 30, 1991, to a Research and Development Organization. Through November 30, 1991. NAS8-38609. The H- 11931D. Auburn University. University of Alabama in Huntsville.

CR-184292 December 1991 CR-184301 December 1991 Orbital Maneuvering Vehicle (OMV) Plume and Space Transfer Concepts and Analysis for Plume Effects Study, Final Report. NAS8- Exploration Missions Phase 2 Final report. 38243. Seca, Inc. N92-23530 NAS8-37857. Boeing. N92-22502

CR- 184293 December 1991 CR- 184302 March 1992 Microgravity Science and Applications Visiting Space Contamination Studies, Interim Annual Scientist Program Final Report December 22,

24 NASACONTRACTORREPORTS (AbstractsforthesereportsmaybeobtainedfromSTAR)

Reportfor March4, 1991,ThroughMarch4, CR-184312 March 1992 1992.NAS8-38475.PhysicalSciences,Inc. Advanced Flow-Polishing and Surface X92-10294 Metrology of the S056 X-Ray Telescope, Final Report. H-08082D and H-11210D. Baker CR-184303 March1992 Consulting. N92-20515 X-Ray Astronomy Research,Final Report PeriodApril 25, 1985,ThroughJanuary31, CR-184313 December 1991 1992. NAS8-36480. Universities Space Bearing Tester Data Compilation, Analysis, and ResearchAssociation. N92-90929 Reporting and Bearing Math Modeling Study Annual Progress Report for January-December CR-184304 January1992 1991. NAS8-37350. SRS Technologies. Wind ProfilerSignalDetectionImprovements, X92-10379 Final ReportAugust1991to January1992.H- 08074D.TennesseeAppliedPhysicalSciences, CR- 184314 March 1992 Inc. N92-16990 Bearing Tester Data Compilation, Analysis, and Reporting and Bearing Math Modeling Study, CR-184305 July1991 Volume I. NAS8-37350. SRS Technologies. QuarterlyManagementReview(Final Report) X92-10371 Solid PropulsionIntegrity ProgramNozzle Workpackage.NAS8-37801.HerculesIndustry CR-184315 March 1992 Team. X92-10292 Bearing Tester Data Compilation, Analysis, and Reporting and Bearing Math Modeling Study, CR-184306 July1989 Volume II. NAS8-37350. SRS Technologies. Advanced NSTS Propulsion System Verification X92-10370 Study, Final Report. NAS8-36700. Rockwell International. N92-24665 CR- 184316 March 1992 Bearing Tester Data Compilation, Analysis, and CR-184307 July 1991 Reporting and Bearing Math Modeling Study, Thermal Analysis of the Ultraviolet Imager Volume III. NAS8-37350. SRS Technologies. Camera and Electronics. H- 10857D. Southwest X92-10373 Research Institute. CR-184317 April 1992 CR-184308 July 1991 Advanced Electric Motor-Flux Mapping. NAS8- Image and Manufacturing Data Analysis Work- 36955. The University of Alabama in station Detail System Design for Subtask Huntsville. N92-24047 3.3.2.2, Final Report. NAS8-37801. Hercules. X92-10315 CR-184318 December 1991 Welding Space Vacuum Technology, Final CR-184309 February 1992 Report. NAS8-36955. The University of Space Transfer Concepts and Analyses for Alabama in Huntsville. N92-25255 Exploration Missions, Final Report. NAS8- 37857. Boeing Defense and Space Group. CR-184319 February 1992 N92-24048 Integration Mockup and Process Material Management System, Final Report. NAS8- CR- 184310 October 1991 36412. Micro Craft, Inc. N92-30754 Spiral Model Pilot Project Information Model. NAS8-37680. Nichols Research Corp. CR- 184320 February 1992 N92-25139 Holographic Flow Diagnostics for the Space Shuttle Main Engine, Final Report. NAS8- CR- 184311 September 1991 38608. MetroLaser. N92-22490 Contamination Analyses of Technology Mirror Assembly Optical Surfaces. H-11289D. CR- 184321 February 1992 McCrone Associates, Inc. N92-24203 Study Report Recommendations for the Next Generation Range Safety System (RSS)

25 NASACONTRACTORREPORTS (AbstractsforthesereportsmaybeobtainedfromSTAR)

IntegratedReceiver/Decoder(IRD). NAS8- CR-184331 February 1992 39160.CincinnatiElectronicsCorp.N92-25197 Infrastructure Study for MSFC, Final Report, Volume II: Technical Analysis and CR-184322 March1992 Programmatics. NAS8-37588. General IndependentAssessmentof ForceandMoment Dynamics Space Systems Division. X92-10400 Tests on AFE Model in CALSPAN 48-in Hypersonic Shock Tunnel. H-11934D. Remtech. CR- 184332 November 1989 X92-10375 Comparison of Hercules and PDA 2-in Throat Nozzle Analysis Results Final, October 1989 to CR-184323 February 1992 December 1989. NAS8-37801. Hercules TDS and BMT for Cases ADF (ADF Rams) Aerospace Co. Acceptance Test and Final Report January 2, 1991, Through February 21, 1992. NAS8-38581. CR- 184333 August 1990 Ball Aerospace Systems Group. N92-25955 Proposed Military Handbook for Carbon-Carbon and Carbon-Phenolic, Final April 1989 to CR-184324 April 1992 August 1990. NAS8-37801. Hercules Aerospace Final Report for P.O. H07966D. The University Co. of Alabama in Huntsville. X92-10398 CR-184334 June 1991 CR-184325 April 1992 Development of a Real-Time In Situ Gauge for Geometry and Mass Model of Ionizing Recession Measurement, Final August 1990 to Radiation Experiments on the LDEF Satellite, June 1991. NAS8-37801. Hercules Aerospace Final Report. NAS8-39121. Science Applica- Co. tions International Corp. N92-26200 CR-184335 May 1991 CR- 184326 April 1992 Temperature Measurements Using Lightpipes in Computational Fluid Dynamics Combustion Solid Rocket Motor Nozzles, Final August 1990 Analysis Evaluation, Final Report. NAS8- to May 1991. NAS8-37801. Hercules Aerospace 36955. The University of Alabama in Co. Huntsville. CR-184336 May 1991 CR- 184327 March 1992 Boron Carbide/Carbon Thermoelectric Head Computational Fluid Dynamics for Propulsion Flux Sensors, Final August 1990 to May 1991. Technology, Final October 20, 1990, to April 1, NAS8-37801. Hercules Aerospace Co. 1992. NAS8-36955. The University of Alabama X92-10450 in Huntsville. N92-23568 CR-184337 May 1991 CR- 184328 April 1992 Boron Carbide/Carbon Thermoelectric Tempera- Replacement Bearing for Rocketdyne SSME ture Sensors, Final August 1990 to May 1991. HPOTPS Using Alternate Self-Lubricating NAS8-37801. Hercules Aerospace Co, Retainer Materials, Final Report. NAS8-36996. X92-10449 Battelle. N92-28362 CR- 184338 June 1991 CR- 184329 April 1992 SPIP 3.1 Workshop Summary Report Materials Automated Screening of Propulsion System Test Characterization and Design/Analysis Data by Neural Networks Phase I Final Report, Capabilities, Final January 1991 to March 1991. Period October 4, 1991, Through April 3, 1992. NAS8-37801. Hercules Aerospace Co. NAS8-39184. ERC, Inc. N92-27403 X92-10453

CR- 184330 February 1992 CR-184339 April 1992 Infrastructure Study for MSFC, Final Report, Investigation of Solar Active Regions at High Volume I: Executive Summary. NAS8-37588. Resolution by Balloon Flights of the Solar General Dynamics Space Systems Division. Optical Universal Polarimeter, Final Report. X92-10399

26 NASACONTRACTORREPORTS (AbstractsforthesereportsmaybeobtainedfromSTAR)

NAS8-38106.LockheedMissilesandSpaceCo., CR- 184348 August 1991 Inc. N92-30204 Regression Rate Testing, 45 Percent Aluminum Formulation SPIP/NASA Special Award, Final CR-184340 April 1992 Report. NAS8-37801. Hercules Aerospace Co. Volume I, Preliminary Design Study: AXAF X-Ray Calibration Spectrometers, Volume II, CR-184349 January 1992 Revised Preliminary Design Study: AXAF Density Gradient of Ablated Carbon Phenolic X-Ray Calibration Spectrometers, Final Report. Slice From Motor 1A, Final Report. NAS8- NAS8-36103. Smithsonian Astrophysical 37801. Hercules Aerospace Co. Observatory. CR-184350 June 1991 CR- 184341 May 1992 Acceptance Test Plan for Image and Turbine Blade Tip and Seal Clearance Manufacturing Data Analysis Workstation, Final Excitation Forces, Phase III Report. NAS8- Report. NAS8-37801. Hercules Aerospace Co. 35018. Massachusetts Institute of Technology. CR-184351 January 1992 CR- 184342 July 1992 Two Inch Throat Nozzle Number 1A Pre/Post Spectra, Composition, and Interactions of Nuclei Test Evaluation, Final Report. NAS8-37801. Above 10 TeV Using Magnet-Interferometric Hercules Aerospace Co. Chambers, Final Report November 1, 1990, to July 31, 1991, and May 20, 1991, to November CR- 184352 January 1992 20, 1991. H-11203D and H-11286D. The Two Inch Throat Nozzle Number Two Pre-Post University of Alabama in Huntsville. Test Evaluation, Final Report. NAS8-37801. N92-25442 Hercules Aerospace Co.

CR- 184343 May 1992 CR-184353 February 1991 Neutralizer and Sample Chamber for the Atomic Carbon Phenolic Characterization Part I Thermal Oxygen Simulation System (AOSS), Final Properties Measurements, Final Report. NAS8- Report for the Period November 1, 1989, 37801. Hercules Aerospace Co. Through April 30, 1991. NAS8-37748. Vanderbilt University. N92-29664 CR-184354 February 1991 Carbon Phenolic Characterization Part II CR-184344 May 1992 Mechanical Properties Measurements, Final Fabrication of Multifilament Conductors: CVD Report. NAS8-37801. Hercules Aerospace Co. Processing of High Tc Superconducting Composite Fibers, Final Report, May 14, 1990, CR- 184355 September 1991 to May 14, 1992. NAS8-38485. Advanced Carbon Phenolic Characterization Part II Raw Technology Materials, Inc. N92-30771 Data, Final Report. NAS8-37801. Hercules Aerospace Co. CR- 184345 August 1989 Main Chamber Combustion and Cooling CR-184356 July 1992 Technology Study, Final Report July 25, 1985, Analysis, Review, and Documentation of the Through June 5, 1989. NAS8-36167. Aerojet Activation Data From LDEF Material Final TechSystems. Technical Report. H-08071D. Eastern Kentucky University. N92-31161 CR- 184346 January 1992 Nonlinear Considerations for Current State-of- CR-184357 May 1992 the-Art Governing Equations, Final Report. Feasibility of Using Neutron Radiography to NAS8-37801. Hercules Aerospace Co. Inspect the Space Shuttle Solid Rocket Booster Aft Skirt, Forward Skirt, and Frustum, Final CR-184347 April 1991 Report Part 1, Summary Report. NAS8-38681. Gas Compressibility of Carbon Phenolic NRE, Inc. Pyrolysis Products, Final Report. NAS8-37801. Hercules Aerospace Co.

27 NASA CONTRACTOR REPORTS (Abstracts for these reports may be obtained from STAR)

CR-184358 October 1990 CR-184368 December 1990 SRB Thermal Curtain Design Support, Interim Space Station Simulation Computer System Report. NAS8-38261. Southern Research (SCS) Study for NASA/MSFC Baseline Institute. Architecture Report, Volume I. NAS8-37745. TRW, Essex, Grumman. CR-184359 May 1992 CFD Modeling of Turbulent Flows Around the CR-184369 December 1990 SSME Main Injector Assembly Using Porosity Space Station Simulation Computer System Formulation, Final Report. NAS8-38871. SECA, (SCS) Study for NASA/MSFC Baseline Inc. Architecture Report, Volume 2. NAS8-37745. TRW, Essex, Grumman. CR- 184360 October 1990 Investigation of Nonlinear E.M. Phenomena in CR-184370 December 1990 the Tethered Magnetospheric Cloud, Final Space Station Simulation Computer System Report for September 1, 1989, to August 31, (SCS) Study for NASA/MSFC Phased 1990. NAS8-36809. Smithsonian Institute. Development Plan. NAS8-37745. TRW, Essex, Grumman. CR-184361 April 1992 Combined Release and Radiation Effects CR- 184371 December 1990 Satellite (CRRES) Experiments Data Collection, Space Station Simulation Computer System Analysis, and Publication, Final Report. NAS8- (SCS) Study for NASA/MSFC Operations 38609. The University of Alabama in Concept Report. NAS8-37745. TRW, Essex, Huntsville. N92-31551 Grumman.

CR-184362 August 1992 CR-184372 December 1990 Develop Research Plan for Use of Atlas Data, Space Station Simulation Computer System Final Technical Report. NAS8-36955. The (SCS) Study for NASA/MSFC Concept University of Alabania in Huntsville. Document. NAS8-37745. TRW, Essex, Grumman. CR- 184363 November 1991 Lubricant Selection Manual, Phase III. NAS8- CR-184373 July 1992 36655. Battelle. Microgravity Sonic Pump Furnace (MSPF-II), A Phase II SBIR Project, Final Report. NAS8- CR-185364 February 1992 38483. Orbital Technologies Corp. Phase II---Lubricant Evaluation of the Alpha and Beta Joints, Final Report. NAS8-36655. CR-184374 May 1992 Battelle. Ballistic Limit Regression Analysis for Space Station Freedom Meteoroid and Space Debris CR-184365 September 1990 Protection System, Final Report. NAS8-37814. Space Station Long Term Lubrication Analysis Sverdrup Corp. Phase I Preliminary Tribological Survey. NAS8- 36655. Battelle. CR-184375 December 1991 Determination of Atmospheric Moisture CR- 184366 December 1989 Structure and Infrared Cooling Rates From High Risk Analysis of Space Transportation During Resolution MAMS Radiance Data for the Period the Space Station Era. NAS8-38076. L. Systems, of November 7, 1986, to September 18, 1991. Inc. NAS8-36169. University of Wisconsin.

CR- 184367 September 1991 CR-184376 January 1991 ECLSS Evolution: Advanced Instrumentation SPIP Nozzle Work Package Accomplishments Interface Requirements Volume III, Appendix September 1988 to December 1990, Final C, Task 3 Report, Technical Report. NAS8- Report. NAS8-37801. Hercules Aerospace Co. 38781. SRS Technologies.

28 NASACONTRACTORREPORTS (AbstractsforthesereportsmaybeobtainedfromSTAR)

CR-184377 February1991 CR- 184382 August 1992 Carbon Phenolic Characterization,Part II Rocket-Based Combined Cycle (RBCC) MechanicalPropertiesMeasurementsFinal Propulsion Technology Workshop Proceedings Report.NAS8-37801.HerculesAerospaceCo. Executive Summary, Volume I. NAS8-38609. The University of Alabama in Huntsville. CR-184378 November1991 Nozzle Flowfield and Thermal Analysis CR- 184383 August 1992 WorkshopFinalReport.NAS8-37801.Hercules Rocket-Based Combined Cycle (RBCC) AerospaceCo. Propulsion Workshop Proceedings Final Report, Volume II. NAS8-38609. The University of CR-184379 November1991 Alabama in Huntsville. Fiber OpticStrainGaugeConceptDownselect ProcessFinal Report.NAS8-37801.Hercules CR- 184384 August 1992 AerospaceCo. High Temperature Aircraft Research Furnace Facilities, Final Report. NAS8-36955. The CR-184380 July 1992 University of Alabama in Huntsville. Final Report of Work Performed Under NAS8- 36955--Earth Science Data Study. NAS8- CR-184385 July 1992 36955. The University of Alabama in Radioactive 7Be Materials Flown on LDEF, Huntsville. Final Report for September 13, 1991, to July 10, 1992. NAS8-38609. The University of Alabama CR-184381 July 1992 in Huntsville. Final Report of Work Performed Under NAS8- 36955--Earth Science and Application. NAS8- 36955. The University of Alabama in Huntsville.

29 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonlyfromauthors.Datesarepresentationdates,)

ABBAS, M.M. ES55 Hubble Space Telescope Solar Cell Module TRAUB, W. Thermal Cycle Test. For presentation at IECEC CHANCE, K. '92, San Diego, CA, August 3-7, 1992. Stratospheric Minor Constituent Distributions From Far Infrared Limb Thermal Emission ARNOLDY, R.L. (University of New Hampshire) Observations. For presentation at the 1992 LYNCH, K.A. Spring AGU Meeting, Montreal, Canada, May KINTNER, P.M. (Cornell University) 12-15, 1992. VAGO, J. CHESNEY, S. ABBAS, M.M. ES55 MOORE, T. ES53 TRAUB, W. (Harvard University) POLLOCK, C. CHANCE, K.V. Bursts of Transverse Ion Acceleration at Rocket Stratospheric Minor Constituent Distributions Altitudes. For publication in Geophysical From Far Infrared Limb Thermal Emission Research Letter, Washington, DC. Observations. For publication in the Journal of Geophysical Research, Washington, DC. AUSTIN, R.A. ES65 RAMSEY, B.D. ABRAHAM, R.N. KA30 Detecting X-Rays With an Optical Imaging Marshall Space Flight Center's Role in the Chamber. For presentation at SPIE's, EUV, Space Station Freedom Program. For X-Ray, and Gamma-Ray Instrumentation for presentation at the International Symposium of Astronomy III Conference, San Diego, CA, July Space Technology and Science, Kagoshima, 19-24, 1992. Japan, May 17-23, 1992. AVANS, S. MS03 ADAMS, A.M. PT41 PEARSON, S. Space Exploration Initiative Overview, Current ESPY, P. Status, and Near-Term Plans. For presentation at BREWER, D. the Association for Unmanned Vehicle Systems CAMP, D. Technical Symposium and Exhibition, Overview of Space Station Freedom Program Huntsville, AL, June 22-24, 1992. Environments. For presentation at the AIAA 31st Aerospace Sciences Meeting, Reno, NV, AGGARWAL, M.D. (Alabama A&M University) January 11-14, 1993. WANG, W.S. SHIELDS, A.W. BACCHUS, D.L. ED33 PENN, B.G. ES74 HENGEL, J.E. FRAZIER, D.O. WOODS, G.H. (Remtech) A Versatile Low-Cost Czochralski Crystal KNOX, E.D. Growth System for Nonlinear Optical Organic POND, J.E. Materials. For publication in the Review of Analytical Flow/Thermal Modeling of Scientific Instruments, Argonne, IL. Combustion Gas Flows in Redesigned Solid Rocket Motor Test Joints. For presentation at the ALBRITI'ON, L.M. EP63 AIAA 17th Aerospace Ground Testing REDMON, J.R. Conference, Nashville, TN, July 6-8, 1992. TYLER, T.R. Design, Development, and Fabrication of BACCHUS, D.L. ED33 Extravehicular Activity Tools for the Transfer HILL, O.E. Orbit Stage. For presentation at the 26th WHITESIDES, R.H. Aerospace Mechanisms Symposium, Goddard Facility for Cold Flow Testing of Solid Rocket Space Flight Center, MD. May 13-15, 1992. Motor Models. For presentation at the 1992 JANNAF Propulsion Meeting, Indianapolis, IN, ALEXANDER, D.W. EB12 February 24-26, 1992. EDGE, T.M. WILLOWBY, D.J.

30 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonlyfromauthors.Datesarepresentationdates.)

BAILEY,J. (UAH) Atmospheric Remote Sensing, San Diego, CA, KOSHAK,W.J. ES43 July 19-24, 1992. CHRISTIAN,H.J. Comparisonof Three In-flight Calibration BHAT, P.N. ES62 Methodsof Field Mills Aboard a Lear 28/29 FISHMAN, G.J. Aircraft. For presentation at the 1992 AGU Fall MEEGAN, C.A. Meeting, San Francisco, CA, December 7-11, WILSON, R.B. 1992. BROCK, M.N. PACIESAS, W.S. (UAH) BAILEY, J. ES43 Sub-millisecond Structure in a Gamma Ray MACH, D.M. Burst Observed by BATSE. For publication in CHRISTIAN, H.J. Nature, Washington, DC. Summary of the NASA Learjet Data During the 1991 CaPE Experiment. For presentation at the BHAT, P.N. (NRC) 1991 AGU Fall Meeting, San Francisco, CA, KOUVELIOTOU, C. ES62 December 9-13, 1991. FISHMAN, G.J. MEEGAN, C.A. BARRET, C. ED13 WILSON, R.B. Spacecraft Stability and Control. For PACIESAS, W.S. presentation at the Society of Women Engineers MATIESON, J. (UCSD) Convention, Orlando, FL, June 22-26, 1992. SCHAEFER, B. (GSFC) TEEGARDEN, B. BARRET, C. ED 13 CLINE, T. Spacecraft Stability and Control. For Spectral Study of a Subset of Gamma Ray presentation at TABES, Huntsville, AL, May Bursts Detected by the BATSE/GRO 1992. Experiment. For presentation at the 179th Meeting of the American Astronomical Society, BASTIAS, P.C. (Vanderbilt University) Atlanta, GA, January 12-16, 1992, and for HAHN, G.T. publication in the Proceedings of the meeting. NUNES, A.C. EH42 KIM, K.Y. BILBRO, J.W. EB23 RUBIN, C.A. KAVAYA, M.J. Contributions of Weld Geometry to the Strength Wind Measurements From Space, For of Aluminum Alloy Butt Welds. For presentation at OPTCON '91, OSA Annual presentation at the Third International Meeting, San Jose, CA, November 4-8, 1991. Conference on Trends in Welding Research, Gatlinbttrg, TN, June 1-4, 1992. BOARDSEN, S.A. ES53 GALLAGHER, D.L BENNER, J. ED10 GURNE'f'F, D.A. SINHA, S.C. PETERSON, W.K. WlENS, G. GREEN, J.L. Modal Testing of a Flexible Multibody System. Funnel Shaped Low Frequency Equatorial For presentation at the Third Pan American Waves. For publication in JGR, Washington, Conference of Applied Mechanics, PACAM3, DC. Sat Paulo, Brazil, January 4-8, 1993. BOECK, W.L ES43 BERGSTROM, J.W. ES43 VAUGHAN, O.H., JR. JACKSON, J.W. BLAKESLEE, R. SIMMONS, D.E. VONNEGUT, B. CHRISTIAN, H. BROOK, M. Functional Test and Calibration Plan for the Lightning Induced Brightening in the Airglow Lightning Imaging Sensor. For presentation at Layer. For publication in Geophysical Research Instrumentation for Planetary and Terrestrial Letters, Washington, DC.

31 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonly from authors. Dates are presentation dates.)

BOWDLE, D.A. (UAH) BROWN, N. PP03 ROTHERMEL, J. ES43 PATEL, S. ARNOLD, J.E. Evaluating Space Transportation Sensitivities GLObal Backscatter Experiment (GLOBE) With Taguchi Methods. For presentation at the Airborne Pacific Survey Mission: Major AIAA Space Programs and Technology Findings and Prospects. For presentation at the Conference, Huntsville, AL, March 24-27, International Symposium on Active Sensors and 1992. Nonsynchronous Missions Dedicated to GEWEX, Jouy en Josas, France, June 15-19, BROWN, N.S. PS02 1992. JOHNSON, C.L. Near-Term SEI Science Missions Utilizing an BRAINERD, J.J. ES65 Evolutionary Lunar Transportation System. For The Signature of the Cosmological Redshift in presentation at The World Space Congress, IAF, Population Studies of Gamma-Ray Burst Symposium on Earth Observations, Washington, Spectra. For publication in Astrophysical DC, August 28-September 5, 1992. Journal, University of Chicago Press, Chicago, IL. BRYAN, T. EB24 ROE, F. BRAINERD, J.J. ES65 COKER, C. Synchrotron Emission From a Cosmological Jet Automated Rendezvous and Capture as a Model of Gamma-Ray Bursts. For Development Infrastructure. For presentation at publication in Astrophysical Journal Letters, the AIAA Space Programs and Technologies Chicago, IL Conference, Huntsville, AL, March 24-27, 1992. BRAINERD, J.J. ES65 Gamma-Ray Bursts in the Galactic Halo. For BUCHANAN, H. EE84 publication in Nature, MacMillan Magazines National Launch System Overview With Focus Ltd., London, England. on CTV. For presentation at the AIAA Space Programs and Technology Conference and BREWER, J.C. EB 12 Exhibits, Huntsville, AL, March 24, 1992. WHI'I'T, T.H. Hubble Space Telescope Nickel-Hydrogen BUCHANAN, H.J., JR. EE84 Battery and Cell Testing--An Update. For Cargo Transfer Vehicle--An Element of the presentation at IECEC, San Diego, CA, August National Launch System. For presentation at the 2-7, 1992. World Space Congress, Washington, DC, August 28, 1992. BROCK, M.N. ES62 MEEGAN, C.A. BUECHLER, D.E. (UAH) FISHMAN, G.J. BLAKESLEE, R.J. ES43 WILSON, R.B. CHRISTIAN, H.J. ROBERTS, F.E. Simulating Lightning Imaging Sensor (LIS) PACIESAS, W.S. (UAH) Observations From Tropical Rainfall Measuring PENDLETON, G.M. (UAH) Mission (TRMM) Orbit. For presentation at the Measuring the Celestial Distribution of _-Ray Fall AGU Meeting, San Francisco, CA, Bursts With BATSE. For presentation at the December 7-11, 1992. 179th American Astronomical Society Meeting, Atlanta, GA, January 13-16, 1992. BUECHLER, D. ES43 BLAKESLEE, R. BROWN, N.E. FA31 Cloud-to-Ground Lightning Observations Used Tethered Satellite System--The System, to Simulate Observations From a Low Earth Purpose, and First Mission Results. For Orbiting Lightning Sensor. For presentation at presentation at the World Space Congress, the Ninth International Conference on Washington, DC, August 28-September 5, 1992. Atmospheric Electricity, St. Petersburg, Russia, June 15-19, 1992.

32 MSFC PAPERS CLEARED FOR PRESENTATION (Available only from authors. Dates are presentation dates.)

BUKLEY, A.P. ED12 CAMPINS, H. (University of Florida) JONES, V.L. JEWITT, D. (University of Hawaii) Marshall Space Flight Center Controls, TELESCO, C. ES63 Astrophysics, and Structures Experiment in Preliminary Results From Simultaneous Visible Space Ground Test Facility. For presentation at and Thermal-Infrared Observations of Object the 15th Annual Rocky Mountain Guidance and 2060 Chiton. For presentation at IAU Circular, Control Conference, Keystone, CO, February 7- Cambridge, MA. 13, 1992. CARDELINO, B.H. (Spelman College) BUKLEY, A.P. ED12 MOORE, C.E. ES74 JONES, V.L. PALEY, M.S. MSFC Controls, Astrophysics, and Structures FRAZIER, D.O. Experiment in Space (CASES) Ground Test Static Third-Order Polarizability Calculations Facility. For presentation at the Fifth Annual for Large Molecular Systems; A Study of Pyrryl NASA/DoD CSI Technology Conference, Lake Diacetylene Derivatives. For publication in the Tahoe, NV, March 3-5, 1992. Journal of Physical Chemistry, Austin, TX.

BUKLEY, A.P. ED12 CARDNO, A.M. EB42 JONES, V.L. NOLA, C.L. CS1 Testbed for the CASES Flight Experiment. FAULKNER, M. For presentation at the Fifth NASA/DoD BOUNDS, R. Controls/Structures Interaction (CSI) Technolo- An Evaluation of the Application Generator gy Conference, Lake Tahoe, NV, March 3-5, (AG) as a Software Development Environment 1992. for Payloads. For presentation at the Payload Data Services Workshop, Huntsville, AL, BUKLEY, A.P. ED12 August 3-6, 1992. SHARKEY, J.P. WAITES, H.B. CARROLL, T.J. (Textron) SA61 DAVIS, J.M. THURSTON, G.S. CSI Design Requirements for the RUDOLPH, J.W. Pinhole/Occulter Facility. For presentation at the ASRM ITE Carbonization Cycle Development: Fifth Annual NASA/DoD CSI Technology Derivation, Implementation, and Evaluation. For Conference, Lake Tahoe, NV, March 3-5, 1992. presentation at the JANNAF RNTS Meeting, MSFC, AL, November 5-7, 1991. BURDINE, R.V. AB35 PENDERGRAFT, B.K. CARRUTH, M.R., JR. EH12 Automated Calibration of Displacement VAUGHN, J. Transducers. For presentation at the NCSL 1992 HOLT, J.M. Workshop and Symposium, Washington, DC, WERP, R. (Boeing) August 2-6, 1992. SUDDUTH. R.D. Plasma Effects on the Passive External Thermal BURNS, J.O. (New Mexico State University) Control Coating of Space Station Freedom. For SULKANEN, M. ES65 presentation at the AIAA Space Programs and GISLER, G.R. Technologies Conference and Exhibit, PERLEY, R.A. Huntsville, AL, March 24-27, 1992. Where Have All the Cluster Halos Gone? For publication in the Astrophysical Journal Letters, CARRUTH, M.R., JR. EH12 Chicago, IL. VAUGHN, J.A. Experimental Studies on Spacecraft Arcing and CAMPBELL, J. ES52 Current Closure Paths. For presentation at the Imaging Solar Profiles With Fourier Telescopes. AIAA 30th Aerospace Sciences Meeting and For presentation at SPIE's 1992 International Exhibit, Reno, NV, January 6-9, 1992. Symposium on Optical Applied Science and Engineering, San Diego, CA, July 19-24, 1992.

33 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonlyfromauthors.Datesarepresentation dates.)

CARTER, D.L. ED62 CHEN, P.S. (liT Research) AKSE, J.R. (Umpqua Research Co.) VESELY, E.J., JR. THOMPSON, J. PANDA, B. JOLLY, C.D. HAMILTON, W.D. EH22 Catalytic Oxidation for Treatment of Aqueous PARR, R.A. Organic Contaminants. For presentation at the The LCF Behavior of the Ni-Base Superalloy SAE International Conference on Environmental PWA 1489 in Hydrogen. For presentation at the Systems, Seattle, WA, July 13-16, 1992. Seventh International Symposium on Superalloys, Seven Springs Mt. Resort, CARTER, D.L. ED62 Champion, PA, September 20-24, 1992. COLE, H. (Boeing) HABERCOM, M. CHEN, P.S. EH23 (liT Research) GRIFFITH, G. (Sverdrup) VESELY, E. SLIVON, L. (Battelle) PANDA, B. Determination of Organic Carbon and Ionic HAMILTON, W.D. Accountability of Various Waste and Product PARR, R.A. Waters Derived From ECLSS Water Recovery The Low Cycle Fatigue and Tensile Behavior of Tests and Spacelab Humidity Condensate. For Ni-Base Superalloys PWA 1480 and PWA 1489 presentation at the SAE International in Hydrogen. For presentation at Hydrogen Conference on Environmental Systems, Seattle, Effects on Materials in Propulsion Systems, WA, July 13-16, 1992. MSFC, AL, May 20--21, 1992.

CHANG, H.-P. (Sverdrup) CHENG, A.K. (Sverdrup) FRENCH, R.A. EL58 REWlNKEL, D.A. Dynamic Performance of an Aero-Assist OWENS, S.F. (CFD Research) Spacecraft--AFE. For presentation at the SEYMOUR, D.C. EP73 Second AAS/AIAA Space Flight Mechanics Numerical Analysis of Propellant and Pressurant Conference, Colorado Springs, CO, February Flow in the TSll6 Engine Component Test 24-26, 1992. Stand at MSFC. For presentation at the ASME Fluids Conference, Washington, DC, June 20-- CHAPMAN, J.S. SA61 24, 1993. NIX, M.B. Overview of the Manufacturing Sequence of the CHENG, A.K. (Sverdrup) Advanced Solid Rocket Motor. For presentation MARSH, M.W. EP62 at the AIAA 1992 Space and Technologies SSME Alternate High Pressure Oxidizer Conference, Huntsville, AL, March 24--26, Turbopump Axial Thrust Balance and 1992. Secondary Flow Computer Model. For presentation at the ASME Fluids Conference, CHAPPELL, C.R. DS01 Washington, DC, June 20-24, 1993. KATZENBERGER, J. The Ground Truth Studies Project, A "Hands- CHOU, S.-J. ES42 On" Environmental Science Program for Nonlinear Baroclinic Waves With Periodic Students, Grades K-12. For presentation at the Forcing. For ibresentation at the Eighth 43rd Congress of the International Astronautical Southeastern Geophysical Fluid Dynamics Federation, Washington, DC, August 28- Conference, Tallahassee, FL, March 13-14, September 5, 1992. 1992.

CHASSAY, R.P. JA82 CHOW, A.S. EP55 Cooperation Between NASA and ESA for the Numerical Modeling of NITM-2 Flow Field. For First Microgravity Materials Science Glovebox. presentation at the 28th Joint Propulsion For presentation at the World Space Congress, Conference, Nashville, TN, July 6--8, 1992. Washington, DC, August 28-September 5, 1992.

34 MSFCPAPERS CLEARED FOR PRESENTATION (Available only from authors. Dates are presentation dates.)

CHRISTIAN, H.J. ES43 ASME/ASEE 28th Joint Propulsion Confer- GOODMAN, S.J. ence, Nashville, TN, July 6-8, 1992. Global Observations of Lightning From Space. For presentation at the Ninth International CRAMER, J.M. EP53 Conference on Atmospheric Electricity, St. Application of the Integrated Modular Engine Petersburg, Russia, June 15-19, 1992. (IME) to Space Vehicle Concepts. For presentation at the AIAA/SAE/ASME/ASEE 28th Joint CHRISTIAN, P.M. ED12 Propulsion Conference, Nashville, TN, July 6-8, RAKOCZY, J. 1992. MSFC Computational Controls Workstation. For presentation at the NASA/NSF/DoD Workshop CRAVEN, P.D. ES53 on Aerospace Computational Control, Santa Comparison of a Physical Plasmaspheric Model Barbara, CA, August 17-19, 1992. (FLIP) With Measured Ionospheric/ Plasmaspheric Plasma Composition and Tem- COHEN, C. ES42 perature. For presentation at the Third Huntsville The Effects of the Hydrostatic Assumption and Workshop on Magnetosphere/Ionosphere of Horizontal Grid Size on Numerical Plasma Models, Guntersville, AL, October 5-8, Simulations of Low-Level Mass Convergence. 1992. For publication in the Journal of the Atmospheric Sciences, Boston, MA. CURRERI, P.A. ES75 RAMACHANDRAN, N. COOK, S. PD24 JONES, J.C. HUETER, U. DOWNEY, J.P. Launch Vehicles for the Space Exploration Experimental Results and Numerical Modeling Initiative. For presentation at the AIAA Space of Solidification During Aircraft High-g Arcs. Programs and Technologies Conference, For presentation at the AIAA 30th Aerospace Huntsville, AL, March 24-27, 1992. Science Meeting, Reno, NV, January 6-9, 1992.

COOPER, A.E. EB22 CURRERI, P.A. ES75 POWERS, W.T. RAMACHANDRAN, N. WALLACE, T.L. DOWNEY, J.P. An OPAD Update: Investigation of SSME JONES, J.C. Component Erosion. For presentation at SAE Numerical Modeling of Melt Velocity and Aerospace Atlantic, Dayton, OH, April 9, 1992. Thermal Distributions During Aircraft High- gravity Arcs. For publication in the Journal of CORNETT, K.G. EO33 Crystal Growth, Amsterdam, Netherlands. A Step Towards Space Station User Operations. For presentation at the AIAA Space Programs CUTI'EN, D.R. (UAH) and Technologies Conference, Huntsville, AL, PEUSCHEL, R. (Ames) March 24-27, 1992. ROTHERMEL, J. ES43 CLARKE, A.D. (University of Hawaii) COSTES, N.C. ES42 BOWDLE, D.A. (UAH) STURE, S. Comparison of Measured and Modeled McTIGUE, D. Scattering Parameters for Tropospheric Mechanics of Granular Materials at Very Low Aerosols. For presentation at the American Effective Stress Levels. For presentation at the Association for Aerosol Research, San ASCE Engineering Mechanics Conference, Francisco, CA, October 12-16, 1992. College Station, TX, May 24-27, 1992. DABNEY, R.W. ED13 COWAN, J.R. EP64 Application of Neural Networks to Autonomous MYERS, W.N. Rendezvous and Docking of Space Vehicles. For Design and Test of a High Power presentation at the AIAA Space Programs and Electromechanical Actuator for Thrust Vector Technology Conference, Huntsville, AL, March Control. For presentation at the AIAA/SAE/ 25, 1992.

35 MSFC PAPERS CLEARED FOR PRESENTATION (Available only from authors. Dates are presentation dates.)

DALINS, I. EH22 Developed for the Bondlines Task of the NAS KARIMI, M. (Alabama A&M University) Solid Propulsion Integrity Program (SPIP). For ILA, D. presentation at the JANNAF Propellant ARXPS Investigation of PTFE After Prolonged Development and Characterization Space Exposure. For presentation at the Subcommittee Meeting, KSC, FL, April 7-9, American Vacuum Society, Seattle, WA, 1992. November 11-15, 1991. DECHER, R. ES61 DALLEK, S. ER41 PETERS, P.N. DEITE, S. SISK, R.C. KAYSER, E. URBAN, E.W. AUGL, J.M_ VLASSE, M. SEIDEN, N RAt, D.K. Characterization of UCAR C-34 and Dylon GC High Temperature Superconducting Bearing for High Temperature Cements. For presentation at Rocket Engine Turbo Pumps. For presentation at the JANNAF Interagency Propulsion the World Congress on Superconductivity, Committee, Rocket Nozzle Technology Munich, Germany, September 14-18, 1992. Subcommittee Meeting, MSFC, AL, November 5-7, 1991. DECHER, R. ES61 Space Science and Astronomy. For publication DAURO, V.A., SR. PD33 in AIAA Magazine, Aerospace America, IMP, A Performance Code. For presentation at Washington, DC, 1992. the Automated Rendezvous and Capture Capabilities Review, Williamsburg, VA, DELCOURT, D.C. ES53 November 19-21, 1991. MOORE, T.E. SAUVAUD, J.A. DAVIS, D.J. EP55 Non-Adiabatic Transport Features in the Upper DILL, K.M. (Sverdrup) Cleft Region. For publication in JGR, TARWATER, R. Washington, DC. REWlNKEL, D.A. One Versus Two Primary LOX Feedline DEMOULIN, P. (Observatoire de Paris) Configuration Study for the National Launch VAN DRIEL-GESZTELYI, L. System. For presentation at the 28th AIAA/SAE/ (Sterrekundig Instituu0 ASME/ASEE Joint Propulsion Conference and SCHMIEDER, B. (Observatoire de Paris) Exhibit, Nashville, TN, July 6-8, 1992. HENOUX, J.C. (Observatoire de Paris) CSEPURA, G. (Heliophysical Observatory) DAVIS, H.W. ED12 HAGYARD, M. ES52 BUKLEY, A.P. Evidence for Energy Release by Magnetic Structural Control Sensors for the CASES GTF. Reconnection in Solar Flares. For publication in For presentation at the Fifth Annual NASA/ Astronomy and Astrophysics, Reinhold, NY. DoD CSI Technology Conference, Lake Tahoe, NV, March 3-5, 1992. DERRICKSON, J.H. ES62 BENTON, E.V. DAVIS, J.M. ES52 HEINRICH, W. The Prediction of Solar Flares for the Space PARNELL, T.A. Exploration Initiative. For presentation at ARMSTRONG, T.W. COSPAR, World Space Congress, Washington, ET AL. DC, August 28-September 5, 1992. Ionizing Radiation Exposure of LDEF (Pre- Recovery Estimates). For publication in Nuclear DEAN, D.L. (McDonnell Douglas) Tracks and Radiation Measurement, Pergamon SEMMEL, M.L. EH33 Press, Oxford, England. LITrLE, R.L. (MICOM) Chemical Basis for an Inert Propellant DERRICKSON, J.H. ES62 Exhibiting Good Bondline Characteristics PARNELL, T.A.

36 MSFCPAPERSCLEAREDFORPRESENTATION (Available only from authors. Dates are presentation dates.)

AUSTIN, R.W. DUGAL-WHITEHEAD, N. EB 12 SELIG, W.J. JOHNSON, Y.B. GREGORY, J.C. Results of an Electrical Power System Fault A Measurement of the Absolute Energy Spectra Study. For presentation at the lntersociety of Galactic Cosmic Rays During the 1976-77 Energy Conversion Engineering Conference, Solar Minimum. For publication in Nuclear San Diego, CA, August 3-7, 1992. Tracks and Radiation Measurements, San Francisco, CA. EDWARDS, D.L. EH15 SEMMEL, C. DESANCTIS, C. PS02 SIMS, J. Science and Application Missions of the Near McDONALD, K. Future. For presentation at the AIAA Space WERTZ, G. Programs and Technologies Conference, McCAIN, M. Huntsville, AL, March 24-27, 1992. ZWIENER, J. Multi-Accelerator Systems for Combined Space DESANCTIS, C.E. PS02 Environmental Exposure of Materials. For DABBS, J.R. presentation at the International Conference on JOHNSON, C.L. the Application of Accelerators in Research and ROBERTS, W.T. Industry, Denton, TX, November 2-5, 1992. Small to Intermediate Satellites for Future Space Physics Missions. For presentation at The World ELFER, N. ED52 Space Congress, IAF, Symposium on Earth ROBERTS, B. Observations, Washington, DC, August 28- OLSEN, G. September 5, 1992. Space Debris Surfaces: Probability of No Penetration Versus Impact Velocity and DIETZ, K.L. ES65 Obliquity. For presentation at the AIAA Space RAMSEY, B.D. Programs and Technologies Conference, WEISSKOPF, M.C. Huntsville, AL, March 24-27, 1992. The Performance of a Multistep Fluorescence- Gated Proportional Counter for Hard X-Ray ELFER, N.C. (Martin Marietta) Astronomy. For presentation at SPIE's BAILLIF, F. International Symposium on Optical Applied ROBINSON, J. ED52 Science and Engineering. External Tank Space Debris Considerations. For presentation at the AIAA Space Programs and DING, R.J. EE24 Technologies Conference, Huntsville, AL, TQM Initiatives in Space Shuttle Main Engine March 24-27, 1992. (SSME) Manufacturing. For presentation at the 28th Annual AIAA/SAE/ASME/ASEE ELROD, S.E. KA40 Propulsion Conference, Nashville, TN, July 6-8, A Policy of Standardization for Satellite 1992. Retrieval Systems. For presentation at the Space Assembly and Servicing Working Group DOWNEY, J. ES74 Interface Standards Meeting and Exhibition, Static and Dynamic Scaling Properties of Single, Houston, TX, November 13-14, 1991. Self-Avoiding Polymer Chains in Two- Dimensions Via the Bond Fluctuation Method of ELSNER, R.F. ES65 Monte Carlo Simulation. For publication in O'DELL, S.L. Macromolecules, Murray Hill, NJ. Mirror Coating Optimization for Grazing Incidence X-Ray Optics at the Iron Line DUGAL-WHITEHEAD, N. EB 12 Complex Between 6 and 7 keV. For presentation Large Autonomous Spacecraft Electrical Power at SPIE's Multilayer and Grazing Incidence X- System (LASEPS). For presentation at the Ray/EUV Optics for Astronomy and Projection lntersociety Energy Conversion Engineering Lithography, San Diego, CA, July 19-24, 1992. Conference, San Diego, CA, August 3-7, 1992.

37 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonly from authors. Dates are presentation dates.)

EMRICH, W.J., JR. PD13 FISHMAN, G.J. ES62 YOUNG, A.C. MEEGAN, C.A. MULQUEEN, J.A. WILSON, R.B. Vehicle Configuration Studies Using Nuclear PACIESAS, W.S. (UAH) Propulsion for Mars Missions. For presentation PENDLETON, G.N. at the AIAA Space Programs and Technology HARMON, B.A. ES62 Conference, Huntsville, AL, March 24, 1992. HORACK, J.M. BROCK, M.N. FAWCETT, S.C. EB23 KOUVELIOTOU, C. (USRA) DOW, T.A. FINGER, M. ES62 Influence of Wheel Speed on Surface Finish and Overview of Observations From BATSE on the Chip Geometry in Precision Contour Grinding. Compton Observatory. For publication in For publication in Precision Engineering Journal Astronomy and Astrophysics, Meudon, France. of the ASPE, Raleigh, NC, March 1, 1992. FISHMAN, G.J. ES62 FAWCE'IT, S.C. EB23 Gamma-Ray Astronomy. For publication in DOW, T.A. McGraw-Hill Yearbook of Science and Analysis of the Wheel Speed Effects in Technology, New York, NY, 1994. Precision Contour Grinding. For presentation at the American Society for Precision Engineering, FISHMAN, G.J. ES62 Santa Fe, NM, October 17, 1991. BATSE/Compton Observations of Gamma-Ray Bursts. For presentation at the Compton FAWCET1 _, S.C. ED23 Observatory Symposium, St. Louis, MO, ROOD, R.W. October 15-18, 1992. BIFANO, T.G. (Boston University) EGERT, C. (Oak Ridge Lab) FISHMAN, G.J. ES62 Surface Characteristics of Ion Milled CVD SiC. Observations From the BATSE Experiment on For presentation at the American Society for the Compton Observatory. For presentation at Precision Engineering Conference, Orlando, FL, the Spring Meeting of The American Physical October 18-23, 1992. Society, Washington, DC, April 1992.

FAY, J.F. (Sverdrup) FISHMAN, G.J. ES62 KUMAR. G.N. Gamma-Ray Observations of the Crab Pulsar-- SEAFORD, C.M. ED33 Past, Present, Future. For publications in the Aerothermodynamic Environment Predictions in Annals of the New York Academy of Sciences, Support of the Aeroassist Flight Experiment. For New York, NY. publication in the Journal of Spacecraft and Rockets, American Institute of Aeronautics and FISHMAN, G.J. ES62 Astronautics. Gamma-Ray Burst Observations From the Gamma Ray Observatory: Capabilities and Early FEARS, S.D. EP62 Results. For presentation at the Colloquium GIBSON, H.G. University of Toronto, Toronto Ontario, Canada, Rolling Element Bearing Tests Performed in November 7-8, 1991. Liquid Oxygen. For presentation at the AIAAJ SAE/ASME/ASEE 28th Joint Propulsion FISHMAN, G.J. ES62 Conference, Nashville, TN, July 6-8, 1992. Initial Observations From the BATSE Experiment on the Compton Gamma Ray FINESCHI, S. ES52 Observatory. For presentation at the 179th DEGL'INNOCENTI, E,L. (University of Spain) Meeting of the American Astrophysical Society, Electron Impact Polarization of Atomic Spectral Atlanta, GA, January 12-16, 1992. Lines, I. A General Theoretical Scheme. For publication in The Astrophysical Journal, Chicago, IL.

38 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonlyfromauthors,Datesarepresentationdates.)

FOGLE.,F.R. EL56 GALLAGHER, D.L. ES53 WOODRUFF,L.D. Core Plasma in the Magnetosphere. For Definition of and Training in the Systems presentation at the Third Huntsville Workshop EngineeringProcess--ANASAPerspective.For on Magnetosphere/Ionosphere Plasma Models, presentationat theSecondAnnualSymposium Guntersviile, AL, December 5-8, 1992. of theNationalCouncilon SystemsEngineering (NCOSE),Seattle,WA,July20-22,1992. GAMWELL, W.R. EH23 KURUVILLA, A.K. FONTENALA,J.M. ES52 Squeeze Castings for Advanced Propulsion RABIN,D. Engine Components. For presentation at the HATHAWAY,D.H. Seventh International Symposium on MOORE,R.L. Superalloys, Champion, PA, September 20-24, Measurementof P-ModeEnergyPropagationin 1992. theQuietSolarPhotosphere.Forpublicationin TheAstrophysicalJournal,Chicago,IL. GARCIA, R. ED32 McCONNAUGHEY, P. FOUNTAIN,J.A. PS01 EASTLAND, A. Overviewof CommercialResearchActivities. Activities of the NASA/Marshall Space Flight Forpresentationat theSpaceStationFreedom Center (MSFC) Pump Stage Technology Team. Utilization Conference, Huntsville, AL, August For presentation at the 28th AIAA/SAE/ASME/ 3-6, 1992. ASEE Joint Propulsion Conference, Nashville, TN, July 6--8, 1992. FOX, T. ED 14 A Description of the SAFD System Hardware. GARCIA, R. ED32 For presentation at the Third Annual Health JACKSON, E. Monitoring Conference for Space Propulsion SCHUTZENHOFER, L.A. Systems, Cincinnati, OH, November 13-14, A Summary of the Activities of the 1991. NASAJMSFC Pump Stage Technology Team. For presentation at the Fourth International FRANCK, C.G. ED25 Symposium on Transport Phenomena and Analyses of the Turbine Blades for the Space Dynamics of Rotating Machinery, Honolulu, HI, Shuttle Main Engines, Part 3--Steady State April 5-8, 1992. Stress and High Cycle Fatigue Analysis. For presentation at the 1992 ASME International GARY, G.A. ES52 Gas Turbine Conference, Cologne, Germany, POLETrO, G. May 31-June 4, 1992. MACHADO, M.E. Interacting Confined-Eruptive Flare Sites Within FREHLICH, R. EB23 a Magnetic Active Region Complex. For Cramer-Rao Bound for Gaussian Random presentation at the AAS/Solar Physics Annual Processes and Applications to Radar Processing Meeting, Columbus, OH, June 7-11, 1992. of Atmospheric Signals. For publication in IEEE Transactions on Acoustics, Speech, and Signal GILES, B.L. ES53 Processing, New York, NY. CHAPPELL, C.R. MOORE, T.E. FULTON, M.A. ES65 COMFORT, R.H. (UAH) KOLODZIEJCZAK, J. IMF Influence on Low-Energy Plasma Outflow RAMSEY, B.D. in the Auroral Zone Polar Cap and Cusp. For Microstrip Proportional Counter Development at presentation at the Third Huntsville Workshop MSFC. For presentation at SPIE's EUV, X-Ray, on Magnetosphere/Ionosphere Plasma Models, and Gamma-Ray Instrumentation for Astronomy Guntersviile, AL, October 5-8, 1992. III, San Diego, CA, July 19-24, 1992.

39 MSFCPAPERSCLEAREDFORPRESENTATION (Availableordy from authors. Dates are presentation dates.)

GILLEY, S.D. (Sverdrup) GREGORY, J.C. (UAH) KNOX, J.C. ED62 PETERS, P.N. ES64 Performance Predictions of Space Station Angular Distributions of 5-eV Atomic Oxygen Freedom ECLSS Cabin Air Handling Scattered From Solid Surface on the LDEF Subsystems for the Man Tended Configuration. Satellite. For publication in Proceedings to For presentation at the International Conference Rarefied Gas Dynamics, Department of on Life Support and Biospherics, Huntsville, Chemistry, University of British Columbia, AL, February 18-20, 1992. Vancouver, BC, Canada, July 26-31, 1992.

GOGGIN, D.G. (Sverdrup) GREGORY, J. EB42 DARDEN, J.M. ED14 DEWBERRY, B. Limiting Critical Speed Response on the SSME GUILLEBEAU, M. Alternate High Pressure Fuel Turbopump (ATD TROY, J. HPFTP) With Bearing Deadband. For LANFEAR, T. presentation at the AIAA 28th Joint Propulsion McKINNEY, K. Conference, Nashville, TN, July 6-9, 1992. Development of a Pilot Project Following the Spiral Model of Software Development. For GOLBEN, J. (Science and Technology Corp.) presentation at the NASA/GSFC Software VLASSEE, M. ES74 Engineering Lab, 16th Annual Software Melt-Sintering Process Optimization at Engineering Workshop, Greenbelt, MD, Temperatures Below 1,100 °C for YBa2Cu307 December 4--5, 1991. and Bulk Samples. For publication in Superconductivity Science and Technology, GREINER, B. EP54 Bristol, UK. FREDERICK, R.A., JR. Results of Labscale Hybrid Rocket Motor GOLBEN, J. (Science and Technology Corp.) Investigation. For presentation at the 28th VLASSEE, M. ES74 AIAA/SAE/ASME/ASEE Joint Propulsion Con- Study of Bulk and Single Crystal YBa2-x-Srx- ference, Nashville, TN, July 6-8, 1992. Cu307-o Superconducting Materials. For publication in Superconductor Science and GRIFFIN, L.W. ED32 Technology, United Kingdom. HUBER, F,W. (Pratt and Whitney) BACHE, G. (Aeroje0 GOLDBERG, B.E. EP54 Turbine Design Technology Team: An COOK, J.R. Overview of Current and Planned Activities Preliminary Results of the NASA/Industry Relevant to the National Launch System (NLS). Hybrid Propulsion Program. For presentation at For presentation at the 28th AIAA/SAE/ASME/ the AIAA Joint Propulsion Conference, ASEE Joint Propulsion Conference, Nashville, Nashville, TN, July 6-8, 1992. TN, July 6-8, 1992.

GOLDBERG, B.E. EP54 GRIFFIN, L. ED32 WILEY, D. (General Dynamics) ROWEY, R.J. ESTEY, P. (American Rocke0 Analyses of Turbine Blades for Space Shuttle Hybrid Rockets: Combining the Best of Liquid Main Engines (SSME) Part I--Aerodynamic and Solids. For publication in Aerospace Environment. For presentation at the 1992 America, Washington, DC, July 1992. ASME International Gas Turbine Conference, Cologne, Germany, May 31-June 4, 1992. GOODMAN, H.M. ES44 Science Data Processing in the Mission to Planet GRINER, C. EO01 Earth Era. For presentation at the AIAA Space LEWIS, C. Programs and Technologies Conference, SMITH, K. Huntsville, AL, March 25, 1992. Payload Training for the Space Station Freedom ERA. For presentation at the World Space Congress, Washington, DC, August 28- September 5, 1992.

40 MSFC PAPERS CLEARED FOR PRESENTATION (Available only from authors. Dates are presentation dates.)

GRINER, C. EO01 HALE, J.P. EO23 Space Station Freedom Payload Operations in Anthropomorphic Teleoperation: Controlling the 21st Century. For presentation at the 42nd Remote Manipulators With the DataGlove. For International Astronautical Congress, Montreal, presentation at the Human Factors Society 36th Canada, October 7-11, 1991. Annual Meeting, Atlanta, GA, October 12-16, 1992. GROFF, M.B. (Teledyne Brown) MUSICK, B.Q. EJ22 HAMMER, R. ES52 WRIGHT, M.E. EL64 MOORE, R.L. Spacelab Glovebox. For presentation at the Heating Times and Heating Mechanisms in the American Glovebox Society, Albuquerque, NM, Quiet Solar Atmosphere. For publication in August 17, 1992. American Astronomical Society Bulletin, Washington, DC. GUILLORY, A. ES43 JEDLOVEC, G. HAMMOND, W.E. (Sverdrup) FUELBERG, HE. JONES, W.G. EL56 A Technique for Deriving Column-Integrated Vehicle Health Management Technology Needs. Water Content Using VAS Split-Window Data. For presentation at the AIAA Space Programs For publication in the Journal of Applied and Technologies Conference, Huntsville, AL, Meteorology, Boston, MA, May 1993. March 24-27, 1992.

HAGYARD, M.J. ES52 HANSON, J.M. EL58 MACHADO, M.E. SHRADER, M.W. SCHMIEDER, B. CHANG, H.P. (Sverdrup) DEMOULIN, P. FREEMAN, S. GUOXIANG, A. Guidance and Dispersion Studies of National QIJUN, F. Launch System Ascent Trajectories. For XIANG, S.L. presentation at the AIAA/AAS Guidance, KAI, L.Z. Navigation, and Control Conference, Hilton KALMAN, B. Head, SC, August 10-12, 1992. Relationship Between Magnetic Field Evolution and Haring Sites in AR 6659 on June 1991. For HANSON, J.M. EL58 presentation at COSPAR, Washington, DC, Mars Parking Orbit Selection. For publication in August 28-September 9, 1992. the Journal of the Astronautical Sciences, Springfield, VA. HAGYARD, M.J. ES52 WEST, E.A. HARMON, B.A. ES62 SMITH, J.E. WILSON, R.B. Magnetic Field Changes Associated With a Sub- FINGER, M.H. Flare and Surge. For publication in Solar PACIESAS, W.S. Physics, Dordrecht, The Netherlands. RUBIN, B.C. FISHMAN, G.J. HALE, J.P., II EO23 X-Ray Nova 4U1543-47. For publication in Marshall Space Flight Center's Virtual Reality Central Bureau for Astronomical Telegrams, Applications Program. For presentation at International Astronomical Union, Cambridge, Wescon/92 Technical Conference, Anaheim, MA. CA, November 17-19, 1992. HARMON, B.A. ES62 HALE, J.P., II EO23 PACIESAS, W.S. Assessment of Head-Mounted Miniature RUBIN, B. Monitor. For presentation at the Human Factors FINGER, M.H. Society 36th Annual Meeting, Atlanta, GA, FISHMAN, G.J. October 12-16, 1992. WILSON, R.B. MEEGAN, C.A.

41 MSFC PAPERS CLEARED FOR PRESENTATION (Available only from authors. Dates are presentation dates.)

Galactic Center. For publication in the Central Early Results From Occultation Analysis of Bureau for Astronomical Telegrams, BATSE/GRO Data. For presentation at the International Astronomical Union, Cambridge, 179th AAS Meeting, Atlanta, GA, January 13- MA. 16, 1992.

HARMON, B.A. ES62 HARMON, B.A. ES62 WILSON, C.A. FISHMAN, G.J. BROCK, M.N. PARNELL, T.A. WILSON, R.B. BENTON, E.V. FISHMAN, G.J. FRANK, A.L. MEEGAN, C.A. LDEF Radiation Measurements: Preliminary PACIESAS, W.S. (UAH) Results. For publication in Nuclear Tracks and PENDLETON, G.N. Radiation Measurements, Pergamon Press, RUBIN, B.C. ES62 Headington Hill Hall, Oxford, England. FINGER, M.H. (UAH) Earth Occultation Measurements of Galactic HARRISON, J.K. FA34 Hard X-Ray/Gamma-Ray Sources: A Survey of RUPP, C.C. PS04 BATSE Results. For presentation at the Orbiting Transmitter and Antenna for Compton Observatory Symposium, St. Louis, Spaceborne Communications at ELF/VLF to MO, October 15-17, 1992. Submerged Submarines. For presentation at the ELF/VLF/LF Radio Progation and Systems HARMON, B.A. ES62 Aspects, Brussels, Belgium, September 28- WILSON, C.A. October 2, 1992. WILSON, R.B. FISHMAN, G.J. HATHAWAY, D.H. ES52 MEEGAN, C.A. Doppler Measurement of the Solar Meridional PACIESAS, W.S. (UAH) Circulation. For presentation at the AASISolar PENDLETON, G.N. Physics Annual Meeting, Columbis, OH, June RUBIN, B.C. ES62 7-11, 1992. et al. Observation of a Hard State Outburst in the HAWARDEN, T.G. ES63 GX339-4 System. For presentation at the CUMMINGS, R.O. Compton Observatory Symposium, St. Louis, TELESCO, C.M. MO, October 15-17, 1992. Optimized Radiative Cooling of Infrared Space Telescopes. For publication in the Proceedings HARMON, B.A. ES62 of The Next Generation Infrared Telescope WILSON, R.B. Meeting, Royal Observatory, Edinburgh, United FINGER, M.H. Kingdom, May 22-24, 1991. PACIESAS, W.S. RUBIN, R.C. HE, X.M. ES76 FISHMAN, G.J. CARTER, D.C. 4U1543-47. For publication in the Central Atomic Structure and Chemistry of Human Bureau for Astronomical Telegrams, Serum Albumin. For publication in Nature, International Astronomical Union, Cambridge, London, England. MA. HE, X.M. ES76 HARMON, B.A. ES62 Internal Vibrations of a Molecule Consisting of WILSON, R.B. Rigid Segments I, Non-Interacting Internal FINGER, M.H. (GRO/SSC) Vibrations. For publication in Acta PACIESAS, W. (UAH) Crystallographica, Winterstoke Rd., Bristol, RUBIN, B. (USRA) England. FISHMAN, G.J. MEEGAN, C.A. BROCK, M.

42 MSFCPAPERSCLEAREDFORPRESENTATION (Available only from authors. Dates are presentation dates.)

HEAMAN, J.P. ED35 HILL, S.A. ED52 Experiences With A High-Pressure Scanning HERTEL, E.S. (Sandia National Laboratory) System. For presentation at the 77th Semiannual CHHABILDAS, L.C. Meeting of the Supersonic Wind Tunnel Whipple Bumper Shield Test at 10.3 km/s. For Association, Notre Dame, IN, April 10-15, presentation at the Topical Conference on Shock 1992. Waves in Condensed Matter, Williamsburg, VA, June 17-20, 1991. HELMICKI, A.J. ED14 VALLELY, D.P. HINMAN, E.M. EB24 KUO, F.Y. Development of a Test Protocol for Evaluating On the Development of System-Theoretic Tools EVA Glove Performance. For presentation at the for the Design of Integrated Health Monitoring 22nd International Conference on and Controls for Rocket Propulsion Systems. Environmental Systems, Seattle, WA, July 13- For presentation at the Third Annual Health 16, 1992. Monitoring Conference for Space Propulsion System, Cincinnati, OH, November 13-14, HOLDER, D.W. ED62 1991. BAGDIGIAN, R.M. Phase III Integrated Water Recovery Testing at HERREN, B.J. JA84 MSFC: Closed Hygiene and Potable Loop Growing Protein Crystals in Microgravity, The Results and Lessons Learned. For presentation at NASA MSAD Protein Crystal Growth (PCG) the SAE International Conference on Program. For presentation at the World Space Environmental Systems, Seattle, WA, July 13- Congress, Washington, DC, August 28- 16, 1992. September 5, 1992. HOOD, R.E. ES43 HERRMANN, M.C. PD24 SPENCER, R.W. JOHNSON, C.L. PS02 LAFONTAINE, F.J. Spacecraft Design Considerations for an Inner Precipitation Remote Sensing Using the Magnetosphere Imager Mission. For Advanced Microwave Precipitation Radiometer. presentation at SPIE's 1992 International For presentation at the l lth International Symposium on Optical Applied Science and Conference on Clouds and Precipitation, Engineering, San Diego, CA, July 19-24, 1992. Montreal, Canada, August 16-22, 1992.

HIGGINS, G.R. EO44 HOOVER, R. ES52 Computer Interfaces for the Visually Impaired. Advanced Optical Systems for Imaging Hard X- For presentation at Technology 2001, San Jose, Rays and Gamma-Rays. For presentation at CA, December 3-5, 1991. SPIE's International Symposium on Optical Applied Science and Engineering, San Diego, HILL, S.A. ED52 CA, July 19-24, 1992. HERTEL, E.S. (Sandia National Laboratory) CHHABILDAS, L.C. HOOVER, R.B. ES52 Whipple Bumper Shield Simulations. For Multilayer X-Ray Optics as Momentum Filters. presentation at the Topical Conference on Shock For presentation at the International Symposium Waves in Condensed Matter, Williamsburg, VA, on Optical Applied Science and Engineering, June 17-20, 1991. San Diego, CA, July 19-24, 1992.

HILL, S.A. ED52 HOOVER, R.B. ES52 CHHABILDAS, L.C. Imaging Schwarzschild Multilayer X-Ray HERTEL, E.S. Microscope. For presentation at the International A Comparison of Whipple Shield Hypervelocity Symposium on Optical Applied Science and Impact Tests to Penetration Predictors. For Engineering, San Diego, CA, July 19-24, 1992. presentation at the 42nd International Astronautical Congress, Montreal, Canada, October 5-11, 1991.

43 MSFC PAPERS CLEARED FOR PRESENTATION (Available only from authors. Dates are presentation dates.)

HOOVER, R.B. ES52 presentation at Compton Observatory FINESCHI, S. Symposium, St. Louis, MO, October 15-17, Design and Fabrication of the All-Reflecting H_ 1992. Lyman Coronograph/Polarimeter, For presentation at the International Symposium on HORACK, J.M. ES62 Optical Applied Science and Engineering, San MEEGAN, C.A. Diego, CA, July 19-24, 1992. FISHMAN, G.J. WILSON, R.B. HOPPE, D.T. EH01 PACIESAS, W.S. Automated Carbon Dioxide Cleaning System. EMSLIE, A.G. For presentation at Technology 2001, San Jose, Effects of Location Uncertainties on the CA, December 2-5, 1991. Observed Distribution of Bursts Detected by BATSE. For presentation at Compton HORACK, J.M. ES62 Observatory Symposium, St. Louis, MO, HAKKILA, J. (Mankato State University) October 15-17, 1992. FISHMAN, G.J. MEEGAN, C.A. HORACK, J.M. ES62 WILSON, R.B. MEEGAN, C.A. PACIESAS, W.S. (UAH) FISHMAN, G.J. PENDLETON, G.N. WILSON, R.B. BROCK, M.N. ES62 BROCK, M.N. KOUVELIOTOU, C. (Univ. of Athens, Greece) PACIESAS, W.S. (UAH) BRIGGS, M.S. (UAH) KOUVELIOTOU, C. (USRA) Preliminary Angular Correlation Analyses of Angular Distributions From Sub-Sets of Gamma-Ray Bursts Detected by BATSE. For Localized Gamma Ray Bursts Detected by presentation at Compton Observatory BATSE. For presentation at the 179th Meeting Symposium, St. Louis, MO, October 15-17, of AAS, Atlanta, GA, January 13-16, 1992. 1992. HOWARD, R.T. EB24 HORACK, J.M. ES62 BOOK, M.L. HARMON, B.A. Video Guidance Sensor for Automated Capture. FISHMAN, G.J. For presentation at the AIAA Space Programs MEEGAN, C.A. and Technology Conference, Huntsville, AL, WILSON, R.B. March 24-27, 1992. PACIESAS, W.S. (UAH) PENDLETON, G.N. HOWARD, S. ES62 KOUVELIOTOU, C. PENDLETON, G. A Search for Long-Lived Emission From Well- Current Status of GRO/BATSE Correlation Localized Gamma-Ray Bursts Using the BATSE Between BATSE GRB's and H II Regions. For Occullation Technique. For presentation at presentation at the 23rd Meeting of Division on Compton Observatory Symposium, St. Louis, Dynamical Astronomy (DDA)/HAD AAS, MO, October 15-17, 1992. Chicago, IL, June 3-6, 1992.

HORACK, J.M. ES62 HOWARD, S. ES62 KOSHUT, T.M. (UAH) The GTO/BATSE Data Analsyis System. For MALLOZZI, R.S. publication in Proceedings of First Annual STOLLBERG, M. Conference on Astronomical Data Analysis STOREY, S.D. ES62 Software and Systems, Tucson, AZ, November FISHMAN, G.J. 6-8, 1991. MEEGAN, C.A. WILSON, R.B. HUBER, W.G. PA01 PACIESAS, W.S. (UAH) Space Transportation Requirements/Systems. BATSE Observations of Gamma-Ray Bursts in For presentation at the Ninth Symposium on Sun-Referenced Coordinate Systems. For

44 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonlyfromauthors.Datesarepresentationdates.)

SpaceNuclearPowerSystems,Albuquerque, LESLIE, F.W. ES42 NM, January12-16,1992. Similarity Rules in Gravity Jitter-Related Spacecraft Liquid Propellant Slosh Waves HUFF,T.L. (Sverdrup) Excitation. For publication in the Journal of OBENHUBER,D.C. Fluid Structures, Montreal, Canada. RODGERS,E.B. EH32 SMITHERS,G.A. HUNG, R.J. (UAH) On-LineMonitoringof Biofilm RemovalUsing LEE, C.C. Iodine and OzoneDisinfectantRegimes.For LESLIE, F.W. ES42 presentationat theInternationalConferenceon Longitudinal and Transverse Modes of Slosh EnvironmentalSystems,Seattle,WA,July1992. Wave Excitation in Rotating Dewar Associated With Gravity Jitters. For publication in Acta HUMPHRIES,W.R. ED61 Astronautica, Paris, France. InterdisciplinaryAnalysisFromtheSpacecraft ThermalAnalyst'sViewpoint.Forpresentation HUNG, R.J. (UAH) at the International Conference for LEE, C.C. EnvironmentalSciences(ICES),Seattle,WA, LESLIE, F.W. ES42 July1992. Gravity Probe-B Spacecraft Attitude Control Based on the Dynamics of Slosh Wave-Induced HUMPHRIES,W.R. ED61 Fluid Stresses Distribution on Rotating Dewar Life SupportSystemDesign for the Space Container of Cryogenic Propellant. For Station Freedom (S.S. Freedom). For publication in Acta Astronautica, Paris, France. presentation at the Fourth European Symposium for Space Station Environmental Control IRWIN, R.D. ED12 Systems, Florence, Italy, October 21-25, 1991. FRAZIER, W.G. MITCHELL, J.R. HUNG, R.J. (UAH) MEDINA, E.A. PAN, H.L. BUKLEY, A.P. LEE, C.C. Control System Design for Flexible Structures LESLIE, F.W. ES42 Using Data Models. For presentation at the Fifth Effect of Asymmetric Gravity Jitter Excited NASA/NSF/DoD Workshop on Aerospace Slosh Waves at Liquid-Vapor Interface Under Computation Control, Santa Barbara, CA, Microgravity. For publication in the Journal of August 17-19, 1992. Fluid Mechanics, Cambridge, United Kingdom. ISHAM, M.A. EH34 HUNG, R.J. ES42 Temperature-Pressure Effects of Hydrogen on PAN, H.L. Room Temperature Flexural Strength of SiC and LESLIE, F.W. Si3N4. For presentation at the 1992 Conference Slosh-Wave-Excited Asymmetric Spacecraft on Advanced Earth-to-Orbit Propulsion Fluid Propellant Viscous Stress and Moment. Technology, Huntsville, AL, May 21, 1992. For publication in the Journal of Propulsion and Power, Washington, DC. JACOBS, R. EH23 VESELY, E.J., JR. HUNG, R.J. ES42 Hydrogen Trapping in Superalloys. For PAN, H.L. presentation at Hydrogen Effects on Materials in LESLIE, F.W. Propulsion Systems, MSFC, AL, May 20-21, Asymmetric Gravity Jitter Excited Slosh Waves 1992. and Spacecraft Moment and Angular Momentum Fluctuations. For publication in the JARZEMBSKI, M.A. ES43 Journal of Guidance, Control, and Dynamics, SRIVASTAVA, V. Washington, DC. Pressure Dependence of Laser-Induced Breakdown of Water Droplets. For publication HUNG, R.J. (UAH) in Optics Letters, Washington, DC. LEE, C.C.

45 MSFC PAPERS CLEARED FOR PRESENTATION (Available only from authors. Dates are presentation dates.)

JAYATIRI]-IA, H.N. ES75 ference, Technology 2001, San Jose, CA, HENDERSON, D.O. December 3-5, 1991. BURGER, A. VOLZ, M.P. JONES, C.S. EH42 A Study of Tellurium Precipitates in CdTe HOFFMAN, D.S. Crystals. For publication in the Journal of LAWLESS, K.G. Applied Physics Letters, Argonne, IL. Robotic Welding at the Marshall Space Flight Center. For presentation at the AIAA Space JOHNSON, C.L. PS02 Programs/Technology Conference, Huntsville, DIETZ, K.L. AL, March 24-26, 1992. ARMSTRONG, T.W. COLBORN, B.L. JUNG, Y.-D. ES65 Mitigation of Adverse Environmental Effects on A Simple Correction for the Born Approxi- Lunar-Based Astronomical Instruments. For mation for Electron Impact Excitation of presentation at the Third International Con- Hydrogenic Ions. For publication in The Astro- ference on Engineering, Construction, and physical Journal, Tucson, AZ. Operations in Space, Denver, CO, May 31-June 4, 1992. JUNG, Y.-D. ES65 GOULD, R.J. JOHNSON, D.L. ES44 L-Shell X-Ray Opacity of Many-Electron HILL, C.K. Atoms. For publication in The Astrophysical BAITS, G.W. Journal, Tucson, AZ. BROWN, S.C. Natural Environment Applications for NASP/X- JUNG, Y.-D. ES65 30 Design and Mission Planning. For presenta- Semi-Classical Approximation for Electron tion at the 31st AIAA Aerospace Sciences Impact Excitation of Hydrogenic Ions. For pub- Meeting, Reno, NV, January 11-15, 1993. lication in The Astrophysical Journal, Tucson, AZ. JOHNSON, D.L. ES44 EHRENBERGER, J. JUNG, Y.-D. ES65 NASP Natural Environment Support and Electron-Impact Excitation of Hydrogenic Ions Atmospheric Modeling--Status. For presenta- in Dense Plasmas. For publication at the 10th tion at NASP, Mid-Term Technology Review, International Colloquium on UV and X-Ray Monterey, CA, April 21-24, 1992. Spectroscopy of Astrophysical and Laboratory Plasmas, Berkely, CA, February 3-5, 1992. JOHNSON, R.B. (UAH) FENG, C. JUSTUS, C.G. (Georgia Institute of Technology) ETHRIDGE, E.C. ES75 JAI_ES, B.F. ES44 Reluctant Glass Formers and Their Applications Mars Global Reference Atmosphere Model in Lens Design. For publication in the Pro- (MARS-GRAM). For presentation at MSATI': ceedings of SPIE's 36th Annual Symposium, Mars Surface and Atmosphere Through Time Bellingham, WA. Workshop, Kona, HI, June 29-July 1, 1992.

JOHNSON, Y.B. EB 12 KAHL, M.S. (Boeing) McDALL, K.E. STOKES, J. EJ14 Nickel Hydrogen Battery Expert Systems. For Operability of Space Station Freedom's presentation at the Intersociety Energy Conver- Meteoroid/Debris Protection System. For pre- sion Engineering Conference, San Diego, CA, sentation at the AIAA Space Programs and August 3-7, 1992. Technologies Conference, Huntsville, AL, March 24-27, 1992. JONES, C.S. EH01 Assessment of Intelligent Processing Equipment KAMENETZKY, R.R. EH12 in NASA. For presentation at the IPE Con- WHITAKER, A.F.

46 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonlyfromauthors.Datesarepresentationdates.)

Performanceof ThermalControlTapesin the presentation at the SPIE International Sym- Protectionof CompositeMaterials.For pre- posium on Optical Applied Science and sentationattheLDEFMaterialsWorkshop'91, Engineering, San Diego, CA, July 19-24, 1992. Hampton,VA, November19-22,1991. KOUVELIOTOU, C. ES62 KELLER,V. PS02 PACIESAS, W.S. (UAH) BERANEK,R. FISHMAN, G.J. ES62 HERRMANN,M. MEEGAN, C.A. ES62 KOCZOR, R. WILSON, R.B. ES62 Mission to Planet Earth's Geostationary Earth Gamma-Ray Burst Color-Color Diagrams. For Observatories (GEO). For presentation at The publication in Astronomy and Astrophysics, World Space Congress, IAR, Symposium on Meudon, France. Earth Observations, Washington, DC, August 28-September 5, 1992. KOUVELIOTOU, C. (USRA) FINGER, M.H. (Computer Sciences Corp.) KELLER, V.W. PS02 FISHMAN, G.J. ES62 Geostationary Earth Observatory Remote MEEGAN, C.A. Sensing Instruments. For presentation at the WILSON, R.B. AIAA Space Programs and Technologies PACIESAS, W.S. (UAH) Conference, Huntsville, AL, March 24-27, Circular No. 5576--Quasi-Periodic Oscillations 1992. in Soft X-Ray Flux From Cygnus X-1. For publication in IAU Circular, Cambridge, MA. K/M, S. (Sverdrup) TRINH, H.P. EP55 KOUVELIOTOU, C. ES62 Performance Effects Resulting From Plugged FISHMAN, G.J. Liquid Oxygen Posts of the Space Shuttle Main MEEGAN, C.A. Engine Injector. For presentation at the 28th WILSON, R.B. AIAA/SAE/ASME/ASEE Joint Propulsion Con- PACIESAS, W.S. ference, Nashville, TN, July 6-8, 1992. KOSHUT, T.M. HORACK, J.M. KINTNER, P.M. (Cornell University) BROCK, M.N. VAGO, J. Soft Gamma Repeater (SGR). For publication in ARNOLDY, R. IAU Circular, Cambridge, MA. POLLOCK, C. ES53 MOORE, T. KOUVELIOTOU, C. ES62 Localized Regions of Transverse Ion Accel- FINGER, M.H. eration by Lower Hybrid Waves. For presen- FISHMAN, G.J. tation at the AGU Chapman Conference on MEEGAN, C.A. Micro- and Meso-Scale Phenomena in Space WILSON, R.B. Plasma, Kauai, HI, February 11-21, 1992. PACIESAS, W.S. Quasi-Periodic Oscillations (QPO) Detected in KNOX, J. ED62 Hard X-Ray Flux of the X-Ray Flux of the X- Impacts of the Space Station Freedom Program Ray Transient GRO JO422+32. For publication Restructure on the Atmosphere Revitalization in IAU Circular, Cambridge, MA. Subsystem of ECLSS. For presentation at the SAE International Conference on Environ- KOUVELIOTOU, C. ES62 mental Systems, Seattle, WA, July 8-12, 1992. FISHMAN, G.J. MEEGAN, C.A. KOLODZIEJCZAK, J.J. ES62 WILSON, R.B. O'DELL, S.L. PACIESAS, W.S. ELSNER, R.F. BROCK, M.N. WEISSKOPF, M.C. Study of Precursor Activity Related to Gamma- Evidence for Dust Contamination on the Ray Bursts Observed With the BATSE/GRO VETA-1 Mirror Surface. For publication and

47 MSFCPAPERSCLEAREDFORPRESENTATION (Available only from authors. Dates are presentation dates.)

Experiment. For presentation at the 179th LEHOCZKY, S.L. ES75 Meeting of AAS, Atlanta, GA, January 12-16, SZOFRAN, F.R. 1991, and for publication in the proceedings. Overview of NASA's Research Activities in the II-VI Area. For presentation at the 1992 U.S. KUSUNOSE, M. ES65 Workshop on the Physics and Chemistry of MINESHIGE, S. Mercury Cadmium Telluride and Other IR Geometrically Thin, Hot Accretion Disks: Materials, Boston, MA, October 13-15, 1992. Topology of the Thermal Equilibrium Curves. For publication in The Astrophysical Journal, LESTER, D.F. ES63 The University of Chicago Press, Chicago, IL. GAFFNEY, N.I. TELESCO, C.M. LACKEY, J.D. EP64 Kinematics of Stars in the Nucleus of M82: The MYERS, W.N. Nuclear Mass. For publication in the Pro- Design of a Prototype Advanced Main ceedings of The Astronomical Society of the Combustion Chamber for the Space Shuttle Pacific, Conference Series, San Francisco, CA. Main Engine. For presentation at the AIAA/ SAE/ASME/ASEE 28th Joint Propulsion Con- LIAW, G.S. (Alabama A&M University) ference, Nashville, TN, July 6-8, 1992. CHOU, L.C. ED33 MO, J.D. (Memphis State University) LAMBING, S.J. E044 The Burnett Shock Structures in Low Density REYNOLDS, S.J. (Boeing) Hypersonic Flows. For presentation at the AIAA Silvabase: A Flexible Data File .Management Fourth International Aerospace Planes Con- System. For presentation at Technology 2001, ference, Orlando, FL, December 1- 4, 1992. San Jose, CA, December 3-5, 1991. LIGHTSEY, W.D. ED12/EB24 LANGER, S. (Sverdrup) ALHORN, D.C. TYGIELS K/, P. EP64 POLITES, M.E. Mathematical Model of the Space Shuttle Main Definition and Design of an Experiment to Test Engine Gaseous Oxygen Control Valve. For Raster Scanning With Rotating Unbalanced- presentation at the 28th AIAA/SAE/ASME/ Mass Devices on Gimbaled Payloads. For ASEE Joint Propulsion Conference and Exhibit, publication in the Journal of Dynamic Systems, Nashville, TN, July 6-8, 1992. Measurement, and Control, New York, NY, May 1992. LAPENTA, C.C. ES44 The Function of the Earth Observing System LINTON, R.C. EH12 Data Information System (EOSDIS) Distributed Atomic Oxygen Effects on Thermal Control and Active Archive Centers. For presentation at the Mirror Coatings: Evaluation of Experiment AIAA Space Programs and Technology A0034. For presentation at the Second LDEF Conference, Huntsville, AL, March 26, 1992. Postretrieval Symposium, San Diego, CA, June 1- 4, 1992. LAROSA, T.N. ES52 MOORE, R.L. LIVINGSTON, J.M. CT21 The Inadequacy of Resistive Dissipation in Solar The Modified Logic Tree Approach: An Flares. For presentation at the AAS/Solar Effective Space System Safety Assessment Physics Annual Meeting, Columbus, OH, June Technique. For presentation at the World Space 7-11, 1992. Congress, Washington, DC, August 28- September 5, 1992. LEE, T.J. DA01 Some Thought on the Management of Large, LOHR, J.C. EP55 Complex International Space Ventures. For TRINH, H.P. presentation at the 43rd Congress of the IAF, Mixing Characteristics of Injector Elements in Washington, DC, August 28-September 5, 1992. Liquid Rocket Engines: A Computational Study. For presentation at the AIAA/SAE/ASME 28th

48 MSFC PAPERS CLEARED FOR PRESENTATION (Available only from authors. Dates are presentation dates.)

Joint Propulsion Conference, Nashville, TN, LUVALL, J. ES43 July 6--8, 1992. HOLBO, R. KAY, J. LOLLAR, L.F. EB12 SCHNEIDER, E. Knowledge Based Systems for Power Manage- Thermal Remote Sensing in Landscape Ecology: ment. For presentation at the AIAA Space A Powerful Tool in the Characterization of Programs and Technology Conference, Landscapes on a Functional Basis. For presen- Huntsville, AL, March 24-27, 1992. tation at the Seventh Annual U.S. Landscape Ecology Symposium, Corvallis, OR, April 8-12, LORANC, M. ES53 1992. POLLOCK, C.J. Conjugate Two-Spacecraft Observations of Cleft McCONNAUGHEY, H.V. EP01 Region Ionospheric Plasma Outflow: A Case LEOPARD, J.L. Study. For presentation at the 1992 Spring AGU LIGHTFOOT, R.M. Meeting, Montreal, Canada, May 12-15, 1992. Test Results of the Highly Instrumented Space Shuttle Main Engine. For presentation at the LORANC, M. ES53 28th AIAA/SAE/ASME/ASEE Joint Propulsion HEELIS, R.A. (University of Texas) Conference, Nashville, TN, July 6-9, 1992. COLEY, W.R. HAIRSTON, M.R. MCCONNAUGHEY, P.K. ED32 Three-Dimensional Ionospheric Plasma SCHUTZENHOFER, L.A. Circulation. For presentation at the Third Overview of the NASA/Marshall Space Flight Huntsville Workshop on Magnetospheric/ Center (MSFC) Computational Fluid Dynamics Ionospheric Plasma Models, Guntersville, AL, (CFD) Consortium for Applications in Pro- October 5-9, 1992. pulsion Technology. For presentation at the 28th AIAA/SAE/ASME/ASEE Joint Propulsion Con- LU, G. (Rice University) ES53 ference, Nashville, TN, July 6-8, 1992. REIFF, P.H. MOORE, T.E. ES53 McDANIELS, D. ED35 HEELIS, R.A. (University of Texas) Space Shuttle Main Engine Water Flow Model. Upflowing Ionospheric Ions in the Auroral For publication in Aerospace America, July Region. For publication in the Journal of 1992. Geophysical Research, Washington, DC. McDANIELS, D. ED35 LUVALL, J.C. ES43 SNEI.LGROVE, L. KAY, J. Liquid Propulsion Turbomachinery Model SCHNEIDER, E. Testing at MSFC. For publication in Aerospace Thermal Remote Sensing in Landscape Ecology: Engineering, USA. A Powerful Tool in the Characterization of Landscapes on a Functional Basis. For presen- McDANIELS, D. ED35 tation at the Ecological Society of American and SNELLGROVE, L. American Institute of Biological Sciences, Liquid Propulsion Turbomachinery Model Honolulu, HI, August 8-14, 1992. Testing at Marshall Space Flight Center (MSFC). For presentation at 1992 Aerospace LUVALL, J. ES43 Atlantic, Dayton, OH, April 6-10, 1992. SCHNEIDER, E. KAY, J. McKEMIE, R.L. EL43 Thermal Remote Sensing as a Tool for Vehicle Health Management--A Systems Categorizing Landscapes in Terms of Their Perspective. For presentation at Microtech- Ecological Development. For presentation at the nologies and Applications to Space Systems, Seventh Annual U.S. Landscape Ecology JPL, Pasadena, CA, May 28, 1992. Symposium, Corvallis, OR, April 8-12, 1992.

49 MSFCPAPERSCLEAREDFORPRESENTATION (Available only from authors. Dates are presentation dates.)

McPHERSON, W.B. EH23 Journal of Engineering for Industry, New York, Hydrogen Test Standardization Tensile Test. For NY, 1992. presentation at the Earth-to-Orbit Propulsion Technology Conference, MSFC, AL, May 19- MARTINEZ, L.F. (University of Texas) 21, 1992. MARQUES, R.E. McCLURE, J.C. McPHERSON, W.B. EH23 NUNES, A.C., JR. EH42 Hydrogen Test Standardization Status of the Front Side Keyhole Detection in Aluminum Low-Cycle Fatigue Tests. For presentation at the Alloys. For publication in the Welding Journal, Earth-to-Orbit Propulsion Technology Con- Miami, FL, 1992 publication. ference, MSFC, AL, May 19-21, 1992. MEEGAN, C.A. ES62 MACH, D.M. ES43 FISHMAN, G.J. BAILEY, J.C. WILSON, R.B. CHRISTIAN, H.J. PACIESAS, W.S. Electrification of Stratiform Winter Clouds Near PENDLETON, G.N. the Kennedy Space Center, Florida. For pre- HORACK, J.M. sentation at the 1991 AGU Fall Meeting, San BROCK, N.N. Francisco, CA, December 9-13, 1991. KOUVELIOTOU, C. The Spatial Distribution of Gamma-Ray Bursts MAGNANI, L. (University of Georgia) Observed by BATSE. For publication in Nature, LAROSA, T.N. ES52 London, England. SHORE, S.N. GSFC The Observation of Correlated Velocity MEEGAN, C.A. ES62 Structures in a Translucent Molecular Cloud and FISHMAN, G.J. Implications for Turbulence. For publication in WILSON, R.B. Astrophysical Journal Letters, Chicago, IL. HORACK, J.M. BROCK, M.N. MANNEBACH, S. EH23 PACIESAS, W.S. (UAH) VESELY, E.J., JR. PENDLETON, G.N. Statistically Designed Experiments as Applied to KOUVELIOTOU, C. (Univ. of Athens, Greece) Alloy Development. For presentation at the The Spatial Distribution of Gamma-Ray Bursts American Society for Quality Control, Observed by BATSE. For presentation at the Rochester, NY, March 31, 1992. Compton Observatory Symposium, St. Louis, MO, October 15-17, 1992. MARMANN, R. JA01 CRAFT, H., JR. MEEGAN, C.A. ES62 Transition of Spacelab Payload Integration FISHMAN, G.J. Expertise to Space Station Freedom. For pre- WILSON, R.B. sentation at the World Space Congress/IAF, PACIESAS, W.S. Washington, DC, August 28-September 5, 1992. BROCK, M.N. HORACK, J.M. MARTIN, J.J. EP53 PENDLETON, G.N. " Cryogenic Testing of a Foam-Multi Layer KOUVELIOTOU, C. Insulation Concept in a Simulated Prelaunch Gamma-Ray Bursts. For publication in Central Environment. For presentation at the 28th AIAA Bureau for Astronomical Telegrams Interna- Joint Propulsion Conference, Nashville, TN, tional Astronomical Union, Cambridge, MA. July 6--8, 1992. MEEGAN, C.A. ES62 MARTINEZ, L.F. (University of Texas) FISHMAN, G.J. McCLURE, J.C. WILSON, R.B. NUNES, A.C., JR. EH42 PACIESAS, W.S. The Effect of Weld Gas Flow Rate on A1-Li BROCK, M.N. Weldability. For publication in the ASME HORACK, J.M.

50 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonlyfromauthors.Datesarepresentationdates.)

PENDLETON,G.N. MITCHELL, R.E. SA61 KOUVELIOTOU,C. The Advanced Solid Rocket Motor. For Gamma-RayBursts. For publicationin IAU presentation at the AIAA 1992 Space and Circular,Cambridge,MA. Technology Conference, Huntsville, AL, March 24--26, 1992. MEEGAN,C.A ES62 FISHMAN,G.J. MITCHELL, R.E. SA61 WILSON,R.B. The Advanced Solid Rocket Motor. For pre- BROCK,M. sentation at the World Space Congress, PACIESAS,W.S. (UAH) Washington, DC, August 28-September 5, 1992. PENDLETON,G. KOUVELIOTOU,C. (USRA) MO, J.D. (Memphis State University) IntensityDistribution of Gamma-RayBursts CHOU, L.C. ED33 Observedby BATSE.For presentationat the Analysis of High-Area-Ratio Nozzle Flows. For 179thAAS Meeting,Atlanta,GA, January13- presentation at the AIAA 28th Joint Propulsion 16,1992. Conference and Exhibit, Nashville, TN, July 6- 8, 1992. MELENDEZ-ALVIRA,D.J. ES55 TORR,D.G. (UAH) MO, J.D. (Memphis State University) TORR,M.R. ES55 CHOU, L.C. ED33 FENNELLY,J.A. (UAH) An Off-Cell Centered Finite Volume Lower- MORGAN,M.F. (UAH) Upper Factorization Scheme for Navier-Stokes OWENS,J.K. ES55 Equations in the Axisymmetric Coordinate. For ThermosphericandIonosphericRemoteSensing presentation at the 13th International Conference From ATLAS-1 Using the Imaging Spectro- on Numerical Methods in Fluid Dynamics, metric Observatory. For presentation at the AGU Rome, Italy, July 6-10, 1992. Fall 1992 Meeting, San Francisco, CA, December 7-11, 1992. MONTGOMERY, E.E. PS04 System Evaluations of Laser Power Beaming MELENDEZ-ALVIRA, D.J. ES55 Options. For presentation at SPIE 1992 BURNSIDE, R.G. OE/LASE, Los Angeles, CA, January 21-25, WALKER, J.C.G. 1992. Modeling the Arecibo Nighttime F2 Lay I. Overhead Properties. For publication in the MOORE, G. (MICOM) Journal of Geophysical Research, Washington, SUTANTO, S. DC. HELLER, R.P. DUGAL-WHITEHEAD, N. EB 12 MILLER, T. ES42 Arcing on DC Power Systems. For presentation On the Question of Predictability in Numerical at the Intersociety Energy Conversion Engineer- Modeling of Baroclinic Laboratory Experiments. ing Conference, San Diego, CA, August 3-7, For presentation at the Eighth Southeastern 1992. Geophysical Fluid Dynamics Conference, Tallahassee, FL, March 13-14, 1992. MOORE, R.L. ES52 HAMMER, R. MILLER, T.Y. ES76 MUSIELAK, Z.E. HE, X. SUESS, S.T. CARTER, D.C. AN, C.-H. A Comparison Between Protein Crystals Grown A New Way to Convert Alfven Waves Into Heat With Vapor Diffusion Methods in Microgravity in Solar Coronal Holes: Intermittent Magnetic and Protein Crystals Grown Using a Gel Liquid- Levitation. For publication in The Astrophysical Liquid Ground-Based Method. For publication Journal Letters, Chicago, IL. in the Journal of Crystal Growth, Amsterdam, The Netherlands. MOORE, R.L. ES52 HAMMER, R.

51 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonly from authors. Dates are presentation dates.)

MUSIELAK, Z.E. MULLINS, L.D. EL58 SUESS, S.T. The State Transition Matrix in Newtonian and AN, C.-H. Hamiltonian Form and a Closed Form Lambert Intermittent Magnetic Levitation and Heating by Solution for the Clohessy-Wiltshire Equations. Alfven Waves in Solar Coronal Holes. For For publication in The Journal of the Astro- presentation at the AAS/Solar Physics Annual nautical Sciences, Springfield, VA. Meeting, Columbus, OH, June 7-11, 1992. NAUMANN, R.J. ES75 BAUGHER, C. MOORE, R.L. ES52 Analytical Estimates of Radial Segregation in MUSIELAK, Z.E. Bridgman Growth From Low-Level Steady and AN, C.-H. Periodic Accelerations. For publication in the ROSNER, R. Journal of Crystal Growth, The Netherlands. SUESS, S.T. Why the Winds From Late-Type Giants and NEIN, M. PS02 Supergiants Are Cool. For publication in DAVIS, B.G. Bulletin American Astronomical Society, HILCHEY, J. Washington, DC. System Concepts for a Series of Lunar Optical Telescopes. For presentation at the Third MOORE, T.E. ES53 International Conference on Engineering, Con- DELCOURT, D.C. struction, and Operations in Space, Denver, CO, Transport and Energization of Ionospheric May 31-June 4, 1992. Plasma. For presentation at the American Geophysical Union Fall Meeting, San Francisco, NERNEY, S. NRC-NAS CA, December 7-11, 1992. SUESS, S.T. ES52 SCHMAHL, E.J. GSFC MOORE, T.E. ES53 The Magnetic Field on the Heliopause. For POLLOCK, C.J. presentation at the 1992 Fall AGU Meeting, San KINTNER, P.M. Francisco, CA, December 7-11, 1992. ARNOLDY, R.L. Bulk Ionospheric Heating in an Auroral Arc. For NETILES, A. EH33 presentation at the 1992 Spring AGU Meeting, A Low Cost Method of Testing Compression- Montreal, Canada, May 12-15, 1992. After-Impact Strength of Composite Laminates. For presentation at Technology 2001, San Jose, MOORE, T.E. ES53 CA, December 4, 1991. DELCOURT, D.C. Mantle Plasma as the Source of the Plasma NOEVER, D.A. ES76 Sheet. For presentation at the 1992 Spring AGU Rarefied Solids: How Big is a Martian Fractal? Meeting, Montreal, Canada, May 12-15, 1992. For presentation at the Sixth Annual Alabama Research Conference, Auburn, AL, October 6-7, MOORE, T.E. ES53 1992. DELCOURT, D.C. Mantle Plasma as the Source of the Plasma NOEVER, D. ES76 Sheet. For publication in GRL, Washington, DC. MATSOS, H. LOOGER, L. MOYLAN, B. (Sverdrup) Bioconvective Indicators in Tetrahymena: SULYMA, P. ED33 Nickel and Copper Protection From Cadmium Investigation of Gas/Particle Heat Transfer Poisoning. For publication in the Journal of Rates in Solid Rocket Motors. For presentation Environmental Health Science, Baton Rouge, at AIAA/SAE/ASME/ASEE 28th Joint Propul- LA. sion Conference and Exhibit, Nashville, TN, July 4--.11, 1992.

52 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonly from authors. Dates are presentation dates.)

NOEVER, D.A. ES76 NONEMAN, S. EO02 Statistical Crystallography of Surface Micelle Ground Tended Payload Operations of Space Spacing. For publication in Langmuir, Station Freedom. For presentation at the World Washington, DC. Space Congress, Washington, DC, August 28- September 5, 1992. NOEVER, D.A. ES76 Granular Instability in Fluidized Beds: A Small- NURRE, G.S. ED12 Over-Large Instability. For presentation at the SHARKEY, J.P. Eighth European Symposium on Materials Fluid BEALS, G. Science in Microgravity, ESA, Universite Libre NELSON, J. de Bruxelles, Belgium, April 2-16, 1992. On-Orbit Design Modifications to the Pointing Control System on the Hubble Space Telescope. NOEVER, D.A. ES76 For presentation at the 1992 AIAA Guidance, Fractal Dynamics of Bioconvective Patterns. For Navigation, and Control Conference, Hilton publication in Journal of Physical Society of Head, SC, August 10-12, 1992. Japan, Tokyo, Japan. OBENHUBER, D.C. (Sverdrup) NOEVER, D.A. ES76 HUFF, T.L. Oligomeric Baroeffect and Gas Aggregation SMITHERS, G.A. EH32 States. For publication in Physical Review A 15, RODGERS, E.B. Ridge, NY. Aquatic Biofilms--Their Response to Disinfec- tion and Invading Species, and Their On-Line NOEVER, D.A. ES76 Monitoring. For presentation at the International Statistics of Emulsion Lattices. For publication Conference on Life Support and Biospherics, in Journal Colloids and Surfaces, Amsterdam, Huntsville, AL, February 1992. The Netherlands. OBENHUBER, D.C. (Sverdrup) NOEVER, D.A. ES76 RODGERS, E.B. EH32 Stability Limits for Bioconvective Fractals: Optimization of 15 Parameters Influencing Microgravity Prospects. For publication in Microbial Survival and Recovery in Aquatic Microgravity Science and Technology, Munich, Systems. For presentation at the 1992 American Germany. Society for Microbiology General Meeting, New Orleans, LA, May 1992. NOLA, C.L. EB42 Evaluating Ada Code Produced by an O'DELL, S.L. ES65 Automated Code Generation Tool. For pre- ELSNER, R.F. sentation at the 17th Annual Software X-Ray Evidence for Particulate Contamination Engineering Workshop, Goddard Space Flight on the AXAF VETA-1 Mirrors. For presentation Center, MD, December 2-3, 1992. at the Multilayer and Grazing Incidence X-Ray/EUV Optics for Astronomy and Projec- NOLA, C.L. EB42 tion Lithography Sponsors: SPIE, San Diego, Evaluating Aria Code Produced by an CA, July 19-24, 1992. Automated Code Generation Tool. For presentation at the Fifth Annual Software Tech- OSHEROVICH, V.A. (GSFC) nology Conference, Salt Lake City, UT, April GARCIA, H.A. (NOAA) 18-23, 1993. HAGYARD, M.J. ES52 Three-Component Electric Current Density in a NOLEN, A.M. ED52 Unipolar Sunspot With Twisted Field. For pub- OLSEN, G.D. lication in The Astrophysical Journal, Chicago, Advanced Shield Design for Space Station IL. Freedom. For presentation at the 1992 Hyper- velocity Impact Symposium, Austin, TX, OWENS, J.K. ES51 November 17-20, 1992. TORR, D.G. (UAH) TORR, M.R. ES51

53 MSFCPAPERSCLEAREDFORPRESENTATION (Available only from authors. Dates are presentation dates.)

FENNELLY, J.A. (UAH) Hydrogen Effects on Materials in Propulsion RICHARDS, P.G. Systems, MSFC, AL, May 20--21, 1992. MORGAN, M.F. BALDRIDGE, T.W. PANG, Q. (University of Texas) ET AL. PANG, T. Mesospheric Nightflow Spectral Survey Taken McCLURE, J.C. by the ISO Spectral Imager on ATLAS-1. For NUNES, A.C. EH42 publication in Geophysical Research Letters, Spectroscopic Measurements of Hydrogen and Washington, DC. Oxygen in Shielding Gas During Plasma Arc Welding. For publication in the ASME Journal OWENS, J.K. ES55 of Engineering for Industry, New York, NY. TORR, M.R. BALDRIDGE, T.W. PENDLETON, G.N. ES62 TORR, D.G. (UAH) PACIESAS, W.S. FENNELLY, J.A. MALLOZZI, R.S. MORGAN, M.F. KOSHUT, T.M. Determination of Mesospheric Temperatures FISHMAN, G.J. From ATLAS-1 Nightflow Measurements. For MEEGAN, C.A. presentation at the 1992 Fall Meeting of the WILSON, R.B. AGU, San Francisco, CA, December 7-11, LESTRADE, J.P. 1992. A Search for Distinct Spatial Distributions of Gamma-Ray Bursts Based on Spectral PACIESAS, W.S. (UAH) Classification. For presentation at the 179th HARMON, B.A. ES62 Meeting of the AAS, Atlanta, GA, January 13- PENDLETON, G.N. (UAH) 16, 1992. FINGER, M.H. (Compton Observatory Science Support Center) PENG, S.T.J. (JPL) ER41 FISHMAN, G.J. ES62 Constitutive Equations of Solid Propellants With MEEGAN, C.A. ES62 Volume Dilatation Under Multiaxial Loading-- RUBIN, B.C. ES62 Theory of Dilatation and Dewetting Criterion. WILSON, R.B. ES62 For presentation at the JANNAF Propulsion Studies of Hard X-Ray Source Variability Using Conference, Indianapolis, IN, February 1992. BATSE. For publication in Astronomy and Astrophysics, Meudon, France. PERKINS, L.A. ED25 CZEKALSKI, B.E. PACIESAS, W.S. ES62 Finite Element Analysis of a Composite PENDLETON, G.N. Artificial Ankle. For presentation at the KOSHUT, T.M. Technology 2002 Conference, Baltimore, MD, MALLOZZI, R.S. December 1-3, 1992. KOUVELITOU, C. FISHMAN, G.J. PETERS, P.N. ES64 MEEGAN, C.A. GREGORY, J.C. (UAH) WILSON, R.B. Attitude Stability of LDEF: Refinement of A Search for Spectrum/Intensity Correlations Results From the Silver Pinhole Camera. For Among BATSE Bursts. For publication in the presentation at the Second LDEF Symposium, -Proceedings and for presentation at the 179th San Diego, CA, June 1-5, 1992. Meeting of the American Astronomical Society, Atlanta, GA, January 13-16, 1992. PETERS, P.N. ES63 ZWEINER, J.M. PANDA, B. EH23 GREGORY, J.C. (UAH) BHAT, B.N. RAIKAR, G. Mechanical Properties of Cast and Wrought WILKES, D.R. (AZ Technology) NASA-23 Alloy. For presentation at the Changes in Chemical and Optical Properties of Thin Film Metal Mirrors on LDEF. For

54 MSFCI'M'ERSCLEAREDFORPRESENTATION (Availableonlyfromauthors.Datesarepresentationdates.)

presentationat LDEF MaterialsResultsfor PRESTWICH, A. ES65 SpacecraftApplications Conference, Huntsville, JOY, M. AL, October 27-28, 1992. SULKANEN, M. LUGINBUHL, C. (USNO) POLETFO, G. NEWBERRY, M. (Steward O.) GARY, G.A. ES52 Near Infrared Imaging of X-Ray Selected MACHADO, M.E. (UAH) Cooling Flows. For presentation at the 179th Interactive Hare Sites Within an Active Region Meeting of the American Astronomical Society, Complex. For publication in Solar Physics, The Atlanta, GA, January 13-16, 1992. Netherlands. PRINCE, A. PP03 POLITES, M.E. ED 12 HAMAKER, J. LIGHTSEY, W.D. Comparison Economics of Future. For A Nonlinear Estimator for Reconstructing the presentation at the World Space Congress, Angular Velocity of a Spacecraft Without Rate Washington, DC, August 28-September 5, 1992. Gyros. For publication in the Journal of Guidance Control and Dynamics, Washington, PRINCE, A. PP03 DC. HAMAKER, J. National Launch System (NLS) Comparative POLLOCK, C.J. ES53 Economic Analysis. For presentation at the CHAPPELL, C.R. AIAA Space Programs and Technology Con- MOORE, T.E. ference, Huntsville, AL, March 24-27, 1992. GURNETT, D.A. (University of Iowa) The Effect of Upstream IMF and Plasma RABIN, D. ES52 Conditions on Dayside Upwelling Ion Hux. For DOWDY, J.F., JR. presentation at the Third Huntsville Workshop Pervasive Variability in the Quiet Solar on Magnetosphere/Ionosphere Plasma Models, Transition Region. For publication in the Guntersville, AL, October 5-8, 1992. Astrophysical Journal, Chicago, IL.

POWERS, W.T. EB22 RAIKAR, G.N. (UAH) COOPER, A.E. GREGORY, J.C. WALLACE, T.W. CHRISTL, L.C. OPAD Through 1991--Status Report No. 2. For PETERS, P.N. ES63 presentation at the Third Annual Space Interaction of Atomic Oxygen With Thin Film Propulsion Health Monitoring Conference, and Bulk Cooper: An XPS, AES, XRD, and Cincinnati, OH, November 13-14, 1991. Profilometer Study. For presentation at the Second LDEF Symposium, San Diego, CA, June PREECE, R.D. ES62 1-5, 1992. KOUVELIOTOU, C. HSHMAN, G.J. RAKOCZY, J.M. ED12 MEEGAN, C.A. BUTLER, M.L. WILSON, R.B. CHRISTIAN, P.M. BROCK, M.N. TOBBE, P.A. PACIESAS, W.S. A Program for the Investigation of Multibody PENDLETON, G.N. Modeling, Verification, and Control. For pre- TEEGARDEN, B. sentation at the NASA/NSF/DoD Workshop on CLINE, T. Aerospace Computational Control, Santa Spectral Characteristics of Single Spike GRB's Barbara, CA, August 17-19, 1992. From BATSE. For publication in the Pro- ceedings and for presentation at the 179th RAMACHANDRAN, N. ES74 Meeting of American Astronomical Society, JONES, J. Atlanta, GA, January 12-16, 1992. CURRERI, P. DOWNEY, J.

55 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonlyfromauthors.Datesarepresentationdates.)

MaterialsProcessingin a Centrifuge--Numeri- RICHARDS, J.S. HA31 calModelingof Macro-gravityEffects.For pre- National Launch System Advanced Develop- sentation at the AIAA 30th Aerospace Sciences ment: Propulsion. For presentation at the 1992 Meeting, Rent, NV, January 6-9, 1992. AIAA Space Programs and Technologies Con- ference and Exhibit, Huntsville, AL, March 24- RAMACHANDRAN, N. (USRA) 27, 1992. SMITH, A. ED35 HEA/_AN, J. RINCON, C. (University of Texas) An Experimental Study of the Fluid Mechanics NUNES, A.C., JR. EH42 Associated With Porous Walls. For presentation McCLURE, J. C. at the AIAA 30th Aerospace Sciences Meeting, ARROWOOD, R. Rent, NV, January 6-9, 1992. Geometric Effects on Strength of Butt Welds in 2219-T87 Aluminum. For presentation at the RAMIREZ, J.A. ES42 Third International Conference on Trends in CHOU, S.-H. Welding Research, Gatlinburg, TN, June 1-4, Impact of Complex Land Surface Hydrology on 1992. the Development and Evolution of Mid-Latitude Synoptic Waves: Sensitivity Experiments. For ROBERTS, F.E., III EH34 presentation at the Conference on Hydroclima- Control System Application of a Diamond tology, Anaheim, CA, January 17-23, 1993. Nucleation and Growth Model to Diamond Torch Film Deposition. For presentation at the RAMSEY, B.D. ES65 23rd Annual Pittsburgh Conference on Modeling The Microstrip Proportional Counter. For and Simulation, Pittsburgh, PA, April 30-May presentation at SPIE's EUV, X-Ray, and 1, 1992. Gamma-Ray Instrumentation for Astronomy III, San Diego, CA, July 19-24, 1992. ROBERTSON, F. ES42 BARRON, E. RAO, S.M. (Alabama A&M University) GOODMAN, S. LOO, B.H. (UAH) FITZJARRALD, D. METZER, R.M. (UA) CHRISTY, J. SHIELDS, A.S. ES74 THOMPSON, S. PENN, G.B. The Global Hydrologic Cycle as Simulated by FRAZIER, D.O. the GENESIS Climate Model: Intercomparisons New Polymorph of 2-Methyl-4-Nitroaniline-- With Multiple Climate Data Bases. For presen- An Efficient Nonlinear Optical Material. For tation at the American Meteorological Society publication in the Journal of Applied Physics, Annual Meeting, Anaheim, CA, January 17-22, Argonne, IL. 1993.

REDMON, J.W., JR. ED54 ROBINSON, J.H. ED52 Novel Aerospace Mechanisms: A Passive Tether MOG, R.A. (Science Applications International) Damping Device for Tethered Satellite; And a Preliminary Design of a Meteoroid/Orbital Pin/Latch Structural Interface System. For pre- Debris Shield System for a Mars Mission sentation at the Aerospace Mechanisms Spacecraft. For presentation at the AIAA Space Symposium, Greenbelt, MD, May 13, 1992. Programs and Technologies Conference, Huntsville, AL, March 24-27, 1992. RHODES, P. ES71 SNYDER, R.S. ROBINSON, J.H. ED52 ROBERTS, G.O. The Effectiveness of Multi-layer Insulation as BAYGENTS, J.C. Meteoroid and Orbital Debris Shielding. For Electrohydrodynamic Effects in Continuous presentation at the AIAA Space Programs and Flow Electrophoresis. For publication in the Technologies Conference, Huntsville, AL, Applied and Theoretical Electrophoresis Journal, March 24-27, 1992. Hampshire, England, October 1991.

56 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonlyfromauthors.Datesarepresentationdates.)

RODGERS,E.B. EH32 SANDER, E.J. (Martin Marietta) SMITHERS,G.A. GOSDEIN, D.R. EE21 OBENHUGER,D.C. Engine Systems Analysis Results of the Space HUFF,T.L. Shuttle Main Engine Redesigned Powerhead Aquatic Biofilms and Their Responsesto Initial Engine Level Testing. For presentation at DisinfectionandInvadingSpecies.Forpresen- the 28th AIAA/SAE/ASME/ASEE Joint Propul- tation at the International Conferenceon sion Conference, Nashville, TN, July 1992. EnvironmentalSystems,Seattle,WA,July1992. SANDERS, J.H. (liT Research) ROLIN,T.D. ES75 PANDA, B. KAUKLER,W.F. BHAT, B. EH23 ANDERSON,E.E. MATSON, D.M. (Aerojet) ETHRIDGE,E. The Influence of Chromium Content on the GlassFormationin theBi-Sr-CA-Cu-OSystem. High-Temperature Oxidation Behavior of Fe-Ni Forpresentationat theIndianapolisMeetingof Based Superalloys in Air. For presentation at the theAmericanPhysicalSociety,Indianapolis,IN, Seventh International Symposium on Super- March16-20,1992. alloys, Seven Springs Mt. Resort, Champion, PA, September 20-24, 1992. RUSSELL,S.S. EH13 McNEILL,S.R. SCHMIDT, G.R. EP53 Strain Field MeasurementWith PC-Based CHUNG, T.J. (UAH) Digital ImageCorrelation.For presentationat Combined Thermocapillary/Buoyancy-Driven Technology2002,Baltimore,MD,December1- Flow About a Curvilinear Evaporating Menis- 3, 1992. cus. For presentation at the 27th AIAA Thermo- physics Conference, Nashville, TN, July 6-8, RUSSELL,S.S. EH13 1992. Determinationof High TemperatureStrains Usinga PCBasedVisionSystem.Forpresen- SCHMIDT, G.R. EP53 tationat 1992Focus:MeasurementTechnology CARRIGAN, R.W. forAerospaceApplicationin High-Temperature, HAHS, J.E. NASA/LRC,Hampton,VA, April 22-23,1992. VAUGHAN, D.A. (Martin Marietta) FOUST, D.C. SAFIE,F.M. CT13 No-Vent Fill Pressurization Tests Using a Useof ProbabilisticDesignMethodsfor NASA Cryogen Simulant. For presentation at the 28th Applications.For presentationat the ASME AIAA/SAE/ASME/ASEE Joint Propulsion Con- WAM '92 Symposiumon Reliability Tech- ference, Nashville, TN, July 6-8, 1992. nology,Anaheim,CA,November8-13,1992. SHELTON, B.W. PD21 SAKURAI,H. ES65 MURPHY, T. RAMSEY,B.D. The Saturn V F-1 Engine Revisited. For presen- The Energy Resolutionof a High-Pressure tation at the AIAA Space Programs and Tech- Xenon-FilledProportionalCounter.Forpresen- nologies Conference, Huntsville, AL, March 24- tationatthe1991IEEENuclearScienceSympo- 27, 1992. sium,SantaFe,NM, November5-8, 1991. SINHA, S.C. (Auburn) ED 12 SAMBAMURTHI,J. ED33 BENNER, J.W. TAYLOR, J. WIENS, G.J. Plume Particle Collection and Analyses in Experimental Verification of Component Mode Scaled ASRM MNASA Motor Test. For Modeling of a Flexible Multibody System. For presentation at the Fine Particle Symposium, Las presentation at the ASME Winter Annual Vegas, NV, July 13-17, 1992. Meeting, Anaheim, CA, November 8-13, 1992.

57 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonlyfromauthors.Datesarepresentationdates.)

SMELSER,J.W. HA31 Second and Third Harmonic Generation by NLS Propulsion--GovernmentView. For pre- Reflection From Langmuir-Blodgett Film of sentationat the SAEfor 28thJointPropulsion New Organic Material: N-Alkyl and N, N- Conference,Nashville,TN,July6-9,1992. Dialkyl Derivatives of 4-Methyl-6-Nitro-2- Quinolinamines With Sec-Butyl as Substituent. SMITH,M. (NewTechnology) For presentation and IQEC '92, Vienna, Austria, LAFONTAINE,C.V. June 14--19, 1992. LAFONTAINE,F.J. MOSS,D. SRIVASTAVA, V. GOODMAN,B.M. JARZEMBSKI, M. ES43 DENGEL,R.C. BOWDLE, D.A. YOUNG,J.T. Comparison of Calculated Aerosol Backscatter GOODMAN,H.M. ES44 at 9.1 lam and 2.1 _tm Wavelengths. For publica- Wetnet:A StatusReport.Forpresentationatthe tion in Applied Optics, Washington, DC. AMSConferenceonInteractiveInformationand ProcessingSystemsfor Meteorology,Ocean- STEINCAMP, J.W. PD31 ography,andHydrology,Atlanta, GA, January LEE, R. (Martin-Marietta) 15, 1992. Reliability Analysis Techniques for Engine-Out Failure in Main Propulsion Systems. For SOHN, B.-J. (USRA) presentation at the AIAA Space Programs and ROBERTSON, F.R. ES42 Technologies Conference, Huntsville, AL, lntercomparison of Observed Cloud Radiative March 24-27, 1992. Forcing: A Zonal and Global Perspective. For publication in the Bulletin of American STOKES, J.W. EJ14 Meteorological Society, Boston, MA. WILLIAMS, K.A. Crew Considerations in the Design for Space SOHN, B.-J. ES42 Station Freedom Modules On-Orbit Modules. ROBERTSON, F.R. For presentation at the AIAA Space Programs SRIKISHEN, J, and Technologies Conference, Huntsville, AL, Intercomparison of Observed Cloud-Radiative March 24-27, 1992. Forcing. For presentation at the International Radiation Symposium, Tullinn, Estonia, August STONE, N.H. ES53 3-8, 1992. An Early Assessment of the TSS-1 Mission. For presentation at the American Geophysical Union SPENCER, R.W. ES43 Fall Meeting, San Francisco, CA, December 7- Principal Scientific Uncertainties Related to 11, 1992. Global Climate Change. For presentation at the Pittsburgh Coal Conference, Pittsburgh, PA, SU, C.-H. ES75 October 12-16, 1992. VOLZ, M.P. GILLIES, D.C. SRINIVAS, R. (Teledyne Brown) SZOFRAN, F.R. SCHAEFER, D.A. JAB3 LEHOCZKY, S.L. Crystal Growth Furnace: An Overview of the Growth of ZnT_ by Physical Vapor Transport System Configuration and Planned Experiments and Traveling Heater Method. For presentation on the First United States Microgravity Lab- at the 10th International Conference on Crystal oratory Mission. For presentation at the AIAA Growth, San Diego, CA, August 16-21, 1992. 30th Aerospace Sciences Meeting, Rent, NV, January 6-9, 1992. SUDDUTH, R.D. (Boeing) WERP, R. SRINIVASAN, R. (Alabama A&M University) CARRUTH, R., JR. EH12 HYDE, H.W. ES74 VAUGHN, J. PENN, B. HOLT, J.M. FRAZIER, D.O. Plasma Effects on the Passive External Thermal ET AL. Control Coating of Space Station Freedom. For

58 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonlyfromauthors.Datesarepresentationdates.)

presentation at the AIAA Space Programs and A Finite Element Method for the Thermo- Technologies Conference, Huntsville, AL, chemical Decomposition of Polymeric March 26, 1992. Materials--Part I: Theory. For publication in the International Journal of Engineering Science, SUESS, S.T. ES52 London, England. NERNEY, S. (NRC-NAS) Cosmic Ray Access to the Heliosphere. For SULLIVAN, R.M. ED24 presentation at the 1992 Fall AGU Meeting, San SALAMON, N.J. Francisco, CA, December 7-11, 1992. A Finite Element Method for the Thermo- chemical Decomposition of Polymeric SUESS, S.T. ES52 Materials--Part II: Carbon Phenolic Compos- Temporal Variations in the Termination Shock ites. For publication in the International Journal Distance. For publication in the Journal of of Engineering Science, London, England. Geophysical Research, Washington, DC, June 1992. SUMRALL, J.P. PT41 HUBER, W.G. SUESS, S.T. ES52 PRIEST, C, McCOMAS, D.J. Space Transportation Implementations for the HOEKSEMA, J.T. Space Exploration Initiative. For presentation to Projection of Heliospheric Current Sheet Tilt: The World Space Congress, Washington, DC, 1992-1996. For publication in the Journal of August 28-September 5, 1992. Geophysical Research Letters, Washington, DC. SUSKO, M. ES44 SUESS, S.T. ES52 Comparison of FPS-16 Radar/Jimsphere and The Relationship Between Coronal and NASA's 50-mHz Radar Wind Profiler Turbu- Interplanetary Magnetic Fields. For presentation lence Indicators. For presentation at the AIAA at COSPAR, World Space Congress, Washing- 31st Aerospace Science Meeting and Exhibit, ton, DC, August 28-September 5, 1992. Rent, NV, January 11-14, 1993.

SULKANEN, M.E. ES65 TELESCO, C.M. ES63 WANG, J.C.L. (CITA) GEZARI, D.Y. LOVELACE, R.V.E. (Cornell University) High-Resolution 12.4 pm Images of the Intrinsically Asymmetric Astrophysical Jets. For Starburst Region in M82. For publication in the presentation at the 179th Meeting of the Ameri- Astrophysical Journal Letters, Cambridge, MA. can Astronomical Society, Atlanta, GA, January 13-16, 1992. THOMAS, L.D, EJ13 Functional Implications of Component SULLIVAN, R.M. ED24 Commonality in Operational Systems. For pub- A Coupled Solution Method for Predicting the lication in the IEEE Transactions on Systems, Thermostructural Response of Decomposing, Man, and Cybernetics, New York, NY. Expanding Polymeric Composites. For publication in the Journal of Composite Materials, TINKER, M.L. ED22 USA. ADMIRE, J.R. IVEY, E.W. SULLIVAN, R.M. ED24 Residual Flexibility Test Method for Veri- A Coupled Solution Method for Predicting the fication of Constrained Structural Models. For Thermostructural Response of Decomposing, presentation at the AIAA 33rd Structures, Struc- Expanding Polymeric Composites. For presen- tural Dynamics, and Materials Conference, tation at the ASME Summer Mechanics Meeting Dallas, TX, April 13-15, 1992. and Materials, Scottsdale, AZ, April 28-May 1, 1992. TINKER, M.L. ED22 ADMIRE, J.R. SULLIVAN, R.M. ED24 IVEY, E. SALAMON, N.J.

59 MSFCPAPERS CLEARED FOR PRESENTATION (Available only from authors. Dates are presentation dates.)

Mass-Additive Modal Test Method for Veri- HLADKY, K.J. fication of Constrained Structural Models. For Global Modeling of the Thermsopheric N2+ presentation at the 10th International Modal First Negative Emissions and Comparison With Analysis Conference, San Diego, CA, February Measurements From the Space Shuttle. For 3-7, 1992. presentation at the 1992 Spring AGU Meeting, Montreal, Canada, May 12-15, 1992. TORR, M.R. ES51 The ATLAS-1 Mission. For presentation at the TORR, M.R. ES51 29th COSPAR Meeting, Washington, DC, Early Results From the ATLAS-1 Shuttle Mis- August 30-September 5, 1992. sion of Relevance to STEP. For presentation at the 1991 STEP Symposium, COSPAR Colloqui- TORR, M.R. ES51 um No. 5, Laurel, MD, August 24-28, 1992. TORR, D.G. (UAH) CHANG, T. TORR, M.R. ES51 RICHARDS, P.G. SULLIVAN, K. BALDRIDGE, T.W. ES51 The Atmospheric Laboratory for Applications OVVENS, J.K. and Science-l: A Shuttle Mission. For pub- DOUGANI, H. (UAH) lication in EOS, Washington, DC. ET AL. The First Negative Bands of N2+ in the TUCKER, P.K. ED32 Dayglow From the ATLAS-1 Shuttle Mission. CROTEAU-GILLESPIE, M. For publication in the Geophysical Research Combustion Devices Technology Team: An Letters, Washington, DC. Overview and Status of STME-Related Activi- ties. For presentation at the 28th AIAA/SAE/ TORR, M.R. ES51 ASME/ASEE Joint Propulsion Conference, TORR, D.G. (UAH) Nashville, TN, July 6-8, 1992. RICHARDS, P.G. N(2p) in the Dayglow: Measurement and TYGIELSKI, K.S. EP62 Theory. For publication in the Geophysical Advanced Technology Application for Com- Research Letters, Washington, DC. bustion Chamber Concepts. For presentation at the AIAA/SAE/ASME/ASEE 28th Joint Propul- TORR, M.R. ES51 sion Conference, Nashville, TN, July 6-8, 1992. The Scientific Objectives of the ATLAS-1 Shuttle Mission. For publication in the UPADHYAY, T. (Mayflower Communications) Geophysical Research Letters, Washington, DC. COq'TERILL, S. (Mayflower Communications) DEATON, A.W. EL58 TORR, M.R. ES51 Autonomous Reconfigurable GPS/INS Navi- TORR, D.G. (UAH) gation and Pointing System for Rendezvous and N(2p) in the Dayglow: Measurement and Docking. For presentation at the AIAA Space Theory. For presentation at the 1992 Fall AGU Programs and Technologies Conference, Meeting, San Francisco, CA, December 7-11, Huntsville, AL, March 24-27, 1992. 1992. VARNAVAS, K. EB32 TORR, M.R. ES51 WEDDENDORF, B. Studies of the Stratosphere, Mesosphere, Wheelchair Stair Lift. For publication in Design Thermosphere, and Ionosphere from the News, Newton, MA. ATLAS-1 Shuttle Mission. For presentation at the 1992 Fall Meeting of AGU, San Francisco, VAUGHN, J.A. EH12 CA, December 7-11, 1992. CARRUTH, M.R., JR. Extrapolation of Electrical Breakdown Currents TORR, M.R. ES51 From the Laboratory to Space Station. For TORR, D.G. publication in the Journal of Spacecraft and RICHARDS, P.G. Rockets, Washington, DC.

60 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonlyfromauthors.Datesarepresentationdates.)

VESSOT,R.F.C. (Smithsonian) SUESS, S.T. MATFISON,E.M. POLETI'O, G, NYSTROM, G.U. A Two-Dimensional MHD Global Coronal DECHER, R. ES61 Model: Steady-State Streamers. For publication Test of an Orbiting Hydrogen Maser Clock in the Proceedings of the Solar Wind Seven, System Using Laser Time Transfer. For Goslar, Germany. publication in the Proceedings of the 23rd Annual Precise Time and Time Interval (PTTI) Applications and Planning Meeting, Pasadena, WANG, J.C.L. ES65 CA, December 3-5, 1991. SULKANEN, M.E. LOVELACE, R.V.E. VLASSE, M. ES74 Intrinsically Asymmetric Astrophysical Jets. For GOLBEN, J. publication in The Astrophysical Journal, DECHER, R. Chicago, IL. Process Optimization for 123 and Bi-Based Superconductors. For presentation at the Third WANG, T.S. ED32 International Conference and Exhibit, World LUONG, V. Congress on Superconductivity, Munich, Numerical Analysis of the Hot-Gas-Side and Germany, September 14-18, 1992. Coolant-Side Heat Transfer in Liquid Rocket Engine Combustors. For presentation at the 28th VLASSE, M. ES74 AIAA/SAE/ASME/ASEE Joint Propulsion GOLBEN, J. Conference, Nashville, TN, July 6-8, 1992. MITCHELL, T. Process Optimization for the Pb and Sb- WANG, T.S. ED32 Substituted Bi-Based 2:2:2:3 Bulk Ceramic CHYU, M.K. Superconductors. For publication in Super- Effects of Turning Configuration on Flow and conductor Science and Technology, Bristol, Heat Transfer in Blade Internal Cooling Passage. United Kingdom. For presentation at the Fourth International Symposium on Transport Phenomena of Rotat- WALKER, A.B.C., JR. ES52 ing Machinery, Honolulu, HI, April 5-8, 1992. HOOVER, R.B. The Multi-Spectral Solar Telescope Array WATWOOD, M. EH23 (MSSTA II). For presentation at SPIE's 1992 BOND, R. International Symposium on Optical Applied VESSELY, E.J., JR. Science and Engineering, San Diego, CA, July The Effect of Machining Techniques, Notch 19-24, 1992. Design, and Strain Rates on the Notched Tensile Strength of Inconel 718 in High Pressure WALKER, S.T. PD22 Hydrogen. For presentation at Hydrogen Effects Thermal Design of a Large Lunar Telescope. For on Materials in Propulsion Systems, MSFC, AL, presentation at the Third International Con- May 20-21, 1992. ference on Engineering, Construction, and Operations in Space, Denver, CO, May 31-June WEGRICH, R.D. ED61 4, 1992. Space Station Freedom Thermal Control and Life Support System Design. For presentation at WANG, A.-H. (UAH) the World Space Congress, IAF, Washington, WU, S.T. DC, August 28-September 5, 1992. SUESS, S.T. ES52 POLETI'O, G. WEISSKOPF, M.C. ES65 A Two-Dimensional MHD Global Coronal The AXAF Veta Test--An Overview. For Model: Steady-State Streamers. For publication presentation at the Multilayer and Grazing in Solar Physics, The Netherlands. Incidence X-Ray/EUV Optics for Astronomy and Projection Lithography, San Diego, CA, WANG, A.H ES52 July 19-24, 1992. WU, S.T.

61 MSFC PAPERS CLEARED FOR PRESENTATION (Available only from authors. Dates are presentation dates.)

WEISSKOPF, M.C. TA01 WIENS, G.J. (Auburn University) ED12 HUMPHREYS, J.T. TSAI, H. BILBRO, J.W. Dynamic Characteristics From a Planar Two- VAN SPEYBROECK, L. Link Flexible Multibody System Including the AXAF Passes Resolution Test. For presentation Gravity Effects. For presentation at the ASME at the World Space Congress, Washington, DC, 1992 Mechanisms Conference, Phoenix, AZ, August 28-September 5, 1992. September 13-16, 1992.

WEST, E.A. ES52 WILHELM, J.M. ED24 Crosstalk in Solar Polarization Measurements. International Space University (ISU) 1991 For presentation at SPIE's International Sym- Design Project: International Mars Mission. For posium on Optical Applied Science and presentation at the Society of Women Engineers, Engineering, San Diego, CA, July 19-24, 1992. 1992 Conference, Orlando, FL, June 22-28, 1992. WEST, E. ES52 WILKINS, N. (UAH) WILKINSON, L.K. ES52 DC Bias Modulation Characteristics of Longi- EMSLIE, A.G. tudinal KD*P Modulators. For presentation at GARY, G.A. SPIE's 1992 International Symposium on On Neutralized Currents in the Solar Corona. Optical Applied Science and Engineering, San For publication in the Astrophysical Journal, Diego, CA, July 19-24, 1992. Chicago, IL.

WEST, M.E. ED12 WILLIAMSEN, J.E. ED52 RAKOCZY, J.M. JOLLEY, W.H. Magnitude Calibration of a Fixed Head Star Statistical Ballistic Limit Curve Regression for Tracker Using Astro-1 Flight Data. For Space Station Freedom Meteoroid/Orbital presentation at the AIAA Space Programs and Debris Shielding. For presentation at the 1992 Technology Conference, Huntsville, AL, March Hypervelocity Impact Symposium, Austin, TX, 24--27, 1992. November 17-20, 1992.

WESTRA, D.G. ED63 WILLIAMSEN, J.E. ED52 Vapor Compression Cycles for Life-Support JOLLEY, W.H. Equipment in Space. For presentation at the Ballistic Limit Curve Regression for Space International Conference on Life Support and Station Freedom Orbital Debris Shields. For Biospherics, Huntsville, AL, February 18-20, presentation at the AIAA Space Programs 1992. Conference, Huntsville, AL, March 24, 1992.

WHITAKER, A.F. EH11 WILLAMSEN, J.E. ED52 KAMENETZKY, R.R. Orbital Debris Risk Analysis and Survivability FINCKENOR, M.M. Enhancement for Freedom Station Manned NORWOOD, J.K. Modules. For presentation at the AIAA Space Atomic Oxygen Effects on LDEF Experiment Programs Conference, Huntsville, AL, March A0171. For presentation at the Second LDEF 24, 1992. Postretrieval Symposium, San Diego, CA, June 1-5, 1992. WILLIAMSEN, J.E. ED52 HOOMANI, J.C. WHITAKER, A.F. EH11 MOG, R.A. FINCKENOR, M. A Dynamic Stochastic Simulation of Space KAMENETZKY, R. Debris/Meteoroid Impacts for Space Station Property Changes Induced by the Space Freedom. For presentation at the AIAA Space Environment in Polymeric Materials on LDEF. Programs Conference, Huntsville, AL, March For presentation at the AIAA 30th Aerospace 24, 1992. Science Meeting, Rent, NV, January 6-9, 1992.

62 MSFC PAPERS CLEARED FOR PRESENTATION (Available only from authors. Dates are presentation dates.)

WILSON, G.S. ES41 Flaring Rate, Energetic Event Rate, and the HUNTRESS, W.T. Solar Cycle. For publication in the Journal of Mission to Planet Earth (MTPE). For presen- Geophysical Research, Washington, DC. tation at the 42nd Congress of the International Astronautical Federation (IAF), Montreal, WILSON, R.M. ES52 Canada, October 6-10, 1991. A Prediction for the Onset of Cycle 23. For publication in the Journal of Geophysical WILSON, R.B. ES62 Research, Washington, DC. FINGER, M.H. FISHMAN, G.J. WILSON, R.M. ES52 MEEGAN, C.A. On the Variation of the Nimbus-7 Total Solar PACIESAS, W.S. Irradiance. For publication in Solar Physics, The IAU Circular No. 5429 (PSR 1509-58). For Netherlands. publication in the International Astronomical Union Circular, Cambridge, MA. WILSON, R.M. ES52 An Early Estimate for the Size of Cycle 23. For WILSON, R.B. ES62 publication in Solar Physics, The Netherlands. HARMON, B.A. FISHMAN, G.J. WORKMAN, G. (UAH) MEEGAN, C.A. WANG, M. FINGER, M.H. BRYSON, C.C. EH13 PACIESAS, W.S. COOK, M.B. PRINCE, J.A. The Effect of Surface Features on Bototic Eddy GRUNSFELD, J.M. Current Inspection of Graphite Fiber Com- CHAKRABARTY, D. ponents. For presentation at the ASNT 1992 IAU Circular No. 5454 (EXO 2030+375). For Spring Conference, Orlando, FL, March 30- publication in the International Astronomical April 3, 1992. Union Circular, Cambridge, MA. WORLUND, A.L. EE81 WILSON, R.B. ES62 MONK, J.C. BATSE/CGRO Observations of Isolated BACHTEL, F.D. Pulsar(s). For presentation at the Los Alamos NLS Propulsion Design Considerations. For National Laboratory's Workshop on Isolated presentation at AIAA, Irvine, CA, February 3-5, Pulsar(s), Tars, NM, February 23-28, 1992. 1992.

WILSON, R.B. ES62 WORLUND, A.L. EE81 BATSE Observations of Isolated Pulsars and NLS Vehicle Design Features. For presentation Disk-Fed X-Ray Binaries. For presentation at at AIAA, Huntsville, AL, March 24-27, 1992. the Compton Observatory Symposium, St. Louis, Mr, October 15-17, 1992. WRIGHT, M. CN22 Space Exploration and Human Imagination: The WILSON, R.B. ES62 Collaborative Efforts of Wernher von Braun and FISHMAN, G.J. Walt Disney. For presentation at the 1993 MEEGAN, C.A. Southern Humanities Council Conference, FINGER, M.H. (CSC) UAH, Huntsville, AL, February 12-14, 1993. PACIESAS, W.S. (UAH) BATSE Pulsed Source Observations--Pre- WRIGHT, M. CN22 liminary Results. For presentation at the 179th Slide Presentation Highlighting History of AAS Meeting, Atlanta, GA, January 13-16, Rocketry, NASA, MSFC. For Presentation at 1992. Project LASER, a presentation at various schools and civic groups. WILSON, R.M. ES52 On the Variation of the Sun's X-Ray WRIGHT, P.D. (USRA) Background Flux and Its Relations to the Sun's GOODMAN, S.J. ES44

63 MSFCPAPERSCLEAREDFOR PRESENTATION (Available only from authors. Dates are presentation dates.)

A Multiparameter Radar Examination of a Properties of QPO's in Accreting Magnetic Mesoscale Convective System. For presentation White Dwarfs. For publication in Astrophysical at the 25th International Conference on Radar Journal, Chicago, IL. Meteorology, Paris, France, June 24-28, 1991. YANG, H.Q. (CFD) WU, K. ES65 PRZEKWAS, A.J. WICKRAMASINGHE, D.T. NUNES, A.C., JR. EH42 Cyclotron Emission From Ridge-Like Emission A Mathematical Model for Weld Undercutting Regions in AM Herculis Binaries. For publi- Caused by Oxygen Contamination. For pub- cation in Astronomical Society of the Pacific, lication in Welding Journal, Miami, FL. San Francisco, CA. YOUNG, A.C. PD32 WU, K. ES65 MULQUEEN, J.A. WICKRAMASINGHE, D.T. EMRICH, W.J. Three-Dimensional Structured Shocks in AM Mars Transportation System Synthesis. For Herculis-Type Systems--II. Cyclotron Emission presentation at the 29th Space Congress, Cocoa From Ridge-Shape Emission Regions. For Beach, FL, April 21-24, 1992. publication in Monthly Notices of Royal Astronomical Society, Edinburgh, Scotland, UK. ZHANG, X. (UAH) ES53 COMFORT, R.H. WU, K. ES65 MUSIELAK, Z. CHANMUGAM, G. MOORE, T.E. ES53 Effects of Magnetic Fields on QPO Properties in GALLAGHER, D.L. AM Herculis Binaries. For publication in Astro- GREEN, J.L. (GSFC) nomical Society of the Pacific, San Francisco, Propagation Characteristics of Pc3 Com- CA. pressional Waves Generated at the Dayside Magnetopause. For publication in Journal of WU, K. ES65 Geophysical Research, Washington, DC. WICKRAMASINGHE, D.T. Accretion Onto AM Herculis Binaries With a ZHAO, J.-H. (University of New Mexico) Multipole Magnetic Field. For publication in BURNS, J.O. Astronomical Society of the Pacific, San NORMAN, M.L. Francisco, CA. SULKANEN, M.E. ES65 Instabilities in Astrophysical Jets: II. Numerical WU, K. ES65 Simulations of Slab Jets. For publication in WICKRAMASINGHE, D.T. Astrophysical Journal, Chicago, IL The Magnetic Field Configurations of AM Herculis Binaries. For publication in Monthly ZIMMERMAN, F. EH42 Notices of Royal Astronomical Society in Press, McKECHNIE, T.N. (Rockwell) United Kingdom. POORMAN, R. EH42 LIAW, Y. (Rockwell) WU, K. ES65 Metallurgy and Properties of Plasma Spray- WICKRAMASINGHE, D.T. Formed Materials. For presentation at ASM (Australian National University) International's National Thermal Spray A Study on the Period Distribution of Magnetic Conference, Orlando, FL, June 1, 1992. Cataclysmic Variables. For publication in the Proceedings of Astronomical Society of ZIMMERMAN, F.R. EH42 Australia, Australia. BRYANT, M.A. McKECHNIE, T.N. (Rockwell) WU, K. ES65 Vacuum Plasma Spray Applications on Liquid CHANMUGAM, G. Fuel Rocket Engines. For presentation at the SHAVIV, G. SAE Joint Propulsion Conference, Nashville, TN, July 6-9, 1992.

64 MSFCPAPERSCLEAREDFORPRESENTATION (Availableonlyfromauthors.Datesarepresentationdates.)

ZISSA, D.E. EB23 ZWlENER, J.M. EH15 Comparison of Ring Focus Image Profile With MELL, R.J. Predictions for the AXAF VETA-I Test. For PETERS, P.N. presentation at the SPIE 1992 International WILKES, D.R. (Arizona Tech) Symposium, San Diego, CA, July 19-24, 1992. MILLER, E.R. GREGORY, J.C. (UAH) ZWIENER, J. EH 15 Fluorescence Measurements of the Thermal HERREN, K. Control Coatings on LDEF Experiments S0069 MOUNT, A. and A0114. For presentation at the Second An Enhanced Whipple Bumper System: Impact LDEF Postretrieval Symposium, San Diego, Resistance of Composite Materials. For presen- CA, June 1-5, 1992. tation at the AIAA Space Programs and Tech- nology Conference, Huntsville, AL, March 24- 27, 1992.

65 APPROVAL

FY 1992 SCIENTIFIC AND TECHNICAL REPORTS, ARTICLES, PAPERS, AND PRESENTATIONS

Compiled by Joyce E. Turner

The information in this report has been reviewed for technical content. Review of any information concerning Department of Defense or nuclear energy activities or programs has been made by the MSFC Security Classification Officer. This report, in its entirety, has been determined to be unclassified.

C.D. BEAN Director Human Resources and Administrative Support

_" U.S. GOVERNMENT PRINTING OFFICE 1993--733-051D/80031