FROM COUSTEAU to CAMERON: a QUADRANT MODEL for UNDERSEA MARINE RESEARCH INFRASTRUCTURE ASSESSMENT By
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38. Effect of Axial Magma Chambers Beneath Spreading Centers on the Compositions of Basaltic Rocks
38. EFFECT OF AXIAL MAGMA CHAMBERS BENEATH SPREADING CENTERS ON THE COMPOSITIONS OF BASALTIC ROCKS James H. Natland, Scripps Institution of Oceanography, La Jolla, California ABSTRACT Ferrobasalts are among a range of basalt types erupted over large, shallow, axial magma chambers beneath the East Pacific Rise crest near 9°N, and the Galapagos Rift near 86°W. Geological and geo- chemical evidence indicates that they evolve in small, isolated magma bodies either in conduit systems over the chambers, or in the solidify- ing walls of the magma chamber flanks away from the loci of fissure eruptions. The chambers act mainly as buffers in which efficient mix- ing ensures that a uniform average, moderately fractionated parent is supplied to the range of magma types erupted at the sea floor. For- mation of ferrobasalts in isolated magma bodies prevents them from mixing directly with primitive olivine tholeiite supplied to the base of the East Pacific Rise magma chamber at 9°N. Rises with abundant ferrobasalts may have magma chambers with broad, flat tops over which eruptions occur in wide, probably struc- turally unstable rift zones. Rises without ferrobasalts may have magma chambers with tapered tops which persistently constrain eruptions to narrow fissure zones, preventing formation of isolated shallow magma bodies where ferrobasalts can evolve. Formation of a flat-topped, rather than a tapered, magma chamber may reflect a high rate of magma supply relative to spreading rate. Steady-state compositions can be approached in magma cham- bers, probably approximating the least-fractionated typical lavas erupted above them. On this basis, the bulk magma composition in the chamber beneath the Galapagos Rift has become more iron-rich through time, a consequence of magma migration eastward down the rift as it shoaled to the west under the influence of the Galapagos Island hot spot. -
Hyperbaric Physiology the Rouse Story Arrival at Recompression
Hyperbaric Physiology The Rouse Story • Oct 12, 1992, off the New Jersey coast • father/son team of experienced divers • explore submarine wreck in 230 ft (70 m) • breathing compressed air • trapped in wreck & escaped with no time for decompression Chris and Chrissy Rouse Arrival at recompression Recompression efforts facility • Both divers directly ascend to dive boat • Recompression starts about 3 hrs after • Helicopter arrives at boat in 1 hr 27 min ascent • Bronx Municipal Hospital recompression facility – put on pure O2 and compressed to 60 ft – Chris (39 yrs) pronounced dead • extreme pain as circulation returned – compressed to 165 ft, then over 5.5 hrs – Chrissy (22 yrs) gradually ascended back to 30 ft., lost • coherent and talking consciousness • paralysis from chest down • no pain – back to 60 ft. Heart failure and death • blood sample contained foam • autopsy revealed that the heart contained only foam Medical Debriefing Gas Laws • Boyle’s Law • Doctors conclusions regarding their – P1V1 = P2V2 treatment • Dalton’s Law – nothing short of recompression to extreme – total pressure is the sum of the partial pressures depths - 300 to 400 ft • Henry’s Law – saturation treatment lasting several days – the amt of gas dissolved in liquid at any temp is – complete blood transfusion proportional to it’s partial pressure and solubility – deep helium recompression 1 Scuba tank ~ 64 cf of air Gas problems during diving Henry, 1 ATM=33 ft gas (10 m) dissovled = gas Pp & tissue • Rapture of the deep (Nitrogen narcosis) solubility • Oxygen -
The Mississippi River Find
The Journal of Diving History, Volume 23, Issue 1 (Number 82), 2015 Item Type monograph Publisher Historical Diving Society U.S.A. Download date 04/10/2021 06:15:15 Link to Item http://hdl.handle.net/1834/32902 First Quarter 2015 • Volume 23 • Number 82 • 23 Quarter 2015 • Volume First Diving History The Journal of The Mississippi River Find Find River Mississippi The The Journal of Diving History First Quarter 2015, Volume 23, Number 82 THE MISSISSIPPI RIVER FIND This issue is dedicated to the memory of HDS Advisory Board member Lotte Hass 1928 - 2015 HISTORICAL DIVING SOCIETY USA A PUBLIC BENEFIT NONPROFIT CORPORATION PO BOX 2837, SANTA MARIA, CA 93457 USA TEL. 805-934-1660 FAX 805-934-3855 e-mail: [email protected] or on the web at www.hds.org PATRONS OF THE SOCIETY HDS USA BOARD OF DIRECTORS Ernie Brooks II Carl Roessler Dan Orr, Chairman James Forte, Director Leslie Leaney Lee Selisky Sid Macken, President Janice Raber, Director Bev Morgan Greg Platt, Treasurer Ryan Spence, Director Steve Struble, Secretary Ed Uditis, Director ADVISORY BOARD Dan Vasey, Director Bob Barth Jack Lavanchy Dr. George Bass Clement Lee Tim Beaver Dick Long WE ACKNOWLEDGE THE CONTINUED Dr. Peter B. Bennett Krov Menuhin SUPPORT OF THE FOLLOWING: Dick Bonin Daniel Mercier FOUNDING CORPORATIONS Ernest H. Brooks II Joseph MacInnis, M.D. Texas, Inc. Jim Caldwell J. Thomas Millington, M.D. Best Publishing Mid Atlantic Dive & Swim Svcs James Cameron Bev Morgan DESCO Midwest Scuba Jean-Michel Cousteau Phil Newsum Kirby Morgan Diving Systems NJScuba.net David Doubilet Phil Nuytten Dr. -
Autonomous Vehicles in Support of Naval Operations Committee on Autonomous Vehicles in Support of Naval Operations, National Research Council
Autonomous Vehicles in Support of Naval Operations Committee on Autonomous Vehicles in Support of Naval Operations, National Research Council ISBN: 0-309-55115-3, 256 pages, 6 x 9, (2005) This free PDF was downloaded from: http://www.nap.edu/catalog/11379.html Visit the National Academies Press online, the authoritative source for all books from the National Academy of Sciences, the National Academy of Engineering, the Institute of Medicine, and the National Research Council: • Download hundreds of free books in PDF • Read thousands of books online, free • Sign up to be notified when new books are published • Purchase printed books • Purchase PDFs • Explore with our innovative research tools Thank you for downloading this free PDF. If you have comments, questions or just want more information about the books published by the National Academies Press, you may contact our customer service department toll-free at 888-624-8373, visit us online, or send an email to [email protected]. This free book plus thousands more books are available at http://www.nap.edu. Copyright © National Academy of Sciences. Permission is granted for this material to be shared for noncommercial, educational purposes, provided that this notice appears on the reproduced materials, the Web address of the online, full authoritative version is retained, and copies are not altered. To disseminate otherwise or to republish requires written permission from the National Academies Press. Autonomous Vehicles in Support of Naval Operations http://www.nap.edu/catalog/11379.html AUTONOMOUS VEHICLES IN SUPPORT OF NAVAL OPERATIONS Committee on Autonomous Vehicles in Support of Naval Operations Naval Studies Board Division on Engineering and Physical Sciences THE NATIONAL ACADEMIES PRESS Washington, D.C. -
2013 Annual Report
2012-13 Annual Accountability Report FLORIDA INTERNATIONAL UNIVERSITY STATE UNIVERSITY SYSTEM of FLORIDA Board of Governors Annual Accountability Report FLORIDA INTERNATIONAL UNIVERSITY 2012-2013 TABLE OF CONTENTS EXECUTIVE SUMMARY DASHBOARD p. 2 KEY ACHIEVEMENTS p. 5 NARRATIVE p. 6 DATA TABLES SECTION 1. FINANCIAL RESOURCES p. 16 SECTION 2. PERSONNEL p. 20 SECTION 3. ENROLLMENT p. 21 SECTION 4. UNDERGRADUATE EDUCATION p. 23 SECTION 5. GRADUATE EDUCATION p. 32 SECTION 6. RESEARCH & ECONOMIC DEVELOPMENT p. 35 1 Annual Accountability Report FLORIDA INTERNATIONAL UNIVERSITY 2012-2013 Dashboard Headcount Fall % 2007-2012 Degree Programs Offered 2012 Carnegie Classifications Enrollments 2012 Total % Change TOTAL 50,394 100% 31% TOTAL (as of Spring 2013) 178 Research Universities Basic: White 6,259 12% -5% Baccalaureate 63 (high research activity) Hispanic 31,037 62% 36% Master’s 81 Undergraduate Professions plus arts & Black 6,639 13% 37% Research& Specialist’s Doctorate 30 Instructional Program: sciences, high graduate Doctorate Other 6,459 13% 50% Professional Doctorate 4 Graduate Comprehensive doctoral Full-Time 30,094 60% 31% Faculty Full- Part- Instructional Program: (no medical/veterinary) Part-Time 20,300 40% 30% (Fall 2012) Time Time Large four-year, primarily Size and Setting: Undergraduate 36,217 72% 22% TOTAL 1,116 34 nonresidential Graduate 8,414 17% 35% Tenure & Ten. Track 687 6 Community Curricular Engagement and T. Track Unclassified 5,763 11% 114% Non-Tenured Faculty 429 28 Engagement: Outreach and Partnerships DEGREE PRODUCTIVITY -
Optimalizácia Využívania Internetových Sietí V Regióne Košice
Article history: Received 20 November 2019 TRANSPORT & LOGISTICS: Accepted 31 December 2019 the International Journal Available online 09 January 2020 ISSN 2406-1069 ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Article citation info: Pacaiova, H., Galtz, J., Darvaši, P., Habala, I. The requirements on machinery safety and their influence on OHS effectiveness. Transport & Logistics: the International Journal, 2019; Volume 19, Issue 47, December 2019, ISSN 2406-1069 THE REQUIREMENTS ON MACHINERY SAFETY AND THEIR INFLUENCE ON OHS EFFECTIVENESS Hana Pacaiova 1, Juraj Glatz 1, Peter Darvaši 1, Ivan Habala 1 1 Technical University of Kosice, Faculty of Mechanical Engineering, Letna 9, 04200 Kosice, Slovakia, tel: +4210556022290, e-mail: [email protected]; [email protected]; [email protected]; [email protected] Abstract: A legislative requirement that specifies the scope for occupational health and safety (OHS) and machinery safety has been implemented in the EU for 30 years. Basic condition for maintaining OHS is safely constructed and operated machinery / equipment. The obligation of constructors (producer, representative) is to launch only such machinery equipment which does not threaten health and safety of persons, domestic animals or property. The criterion for meeting these regulations is risk assessment. For maintenance activities, there are, in the EU directive on machinery safety (2006/42/ES), set requirements for the isolation of hazardous energy, which may threaten life or health of maintenance workers when performing the required activity. Identification process of this energy must be a part of risk assessment, the result of which is such a construction solution that enables disconnecting from all energy sources in a safe and convenient way together with its lockout. -
Aquarius Fact Sheet
Fact Sheet: 2019 Designer: Perry Submarine Builders (Florida) Construction: Victoria Machine Works (Texas); start: 1986 | complete: 1987 Estimated construction cost: $5.5M Operational Timeline: St. Croix Deployment: Deployment in Salt River Canyon, St. Croix: 1987 Owner: NOAA Operator: Farleigh Dickenson University Interim Period: Recovered: 1990 by the University of North Carolina Wilmington Refurbished: 1990-1993 at North Carolina State Ports, Wilmington, NC Owner: NOAA Operator: University of North Carolina Wilmington Florida Keys Deployment: Initial deployment on Conch Reef, Florida Keys: 1993 (baseplate deployed 1992) Recovered for refurbishment: 1996-1998 - Harbor Branch Oceanographic Institution, Ft. Pierce, FL Redeployment on Conch Reef, Florida Keys: 1998 – present Owner: NOAA: 1986-2014; Florida International University: 2014 – present Operator: FDU: 1987-1989; UNCW: 1990-2012; Florida International University: 2013 - present Aquarius Siting: Conch Reef, Florida Keys (Florida Keys National Marine Sanctuary): Distance From Islamorada shore base: 15.4 km (8.5 nm) Distance offshore: 9 km (5.4 nm) Hatch depth/storage depth: 14 m (46 fsw) 35 psi Depth of bottom directly below Aquarius: 18 m (60 fsw) (updated: 09.15.19) Habitat Specifications: Aquarius weight: 82-ton double-lock pressure vessel Baseplate weight: 120 tons Dimensions: 14-meters long by 3-meters in diameter (46 ft x 10 ft) Crew: 4 scientists and 2 technicians Amenities: kitchen facilities that include a microwave, instant hot water dispenser, refrigerator, sink, dining -
Prokaryotes Exposed to Elevated Hydrostatic Pressure - Daniel Prieur
EXTREMOPHILES – Vol. III - Piezophily: Prokaryotes Exposed to Elevated Hydrostatic Pressure - Daniel Prieur PIEZOPHILY: PROKARYOTES EXPOSED TO ELEVATED HYDROSTATIC PRESSURE Daniel Prieur Université de Bretagne occidentale, Plouzané, France. Keywords: archea, bacteria, deep biosphere, deep sea, Europa, exobiology, hydrothermal vents, hydrostatic pressure, hyperthermophile, Mars, oil reservoirs, prokaryote. Contents 1. Introduction 2. Deep-Sea Microbiology 2.1. A Brief History 2.2. Deep-Sea Psychrophiles 2.2.1. General Features 2.2.2. Adaptations to Elevated Hydrostatic Pressure 2.3. Deep-Sea Hydrothermal Vents 2.3.1. Deep-Sea Hyperthermophiles 2.3.2. Responses to Hydrostatic Pressure 3. Other Natural Environments Exposed to Hydrostatic Pressure 3.1. Deep Marine Sediments 3.2. Deep Oil Reservoirs 3.3. Deep Rocks and Aquifers 3.4. Sub-Antarctic Lakes 4. Other Worlds 4.1. Mars 4.2. Europa 5. Conclusions Acknowledgements Glossary Bibliography Biographical Sketch SummaryUNESCO – EOLSS All living organisms, and particularly prokaryotes, which colonize the most extreme environments, SAMPLEhave their physiology cont rolledCHAPTERS by a variety of physicochemical parameters whose different values contribute to the definition of biotopes. Hydrostatic pressure is one of the major parameters influencing life, but its importance is limited to only some environments, especially the deep sea. If the deep sea is defined as water layers below one kilometer depth, this amount of water, which is exposed to pressures up to 100 MPa, represents 62% of the volume of the total Earth biosphere. A rather small numbers of investigators have studied the prokaryotes that, alongside invertebrates and vertebrates, inhabit this extreme environment. Deep-sea prokaryotes show different levels of adaptation to elevated hydrostatic pressure, from the barosensitive organisms to the obligate piezophiles. -
Deep-Tow Studies of the Structure of the Mid-Atlantic Ridge Crest Near Lat 37°N
Deep-tow studies of the structure of the Mid-Atlantic Ridge crest near lat 37°N KEN C. MACDONALD* Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, La Jolla, California 92093 BRUCE P. LUYENDYK Department of Geological Sciences, University of California, Santa Barbara, California 93106 This article is one of a series appearing in the April and May issues of the Geological Society of America Bulletin on the scientific results of Project FAMOUS. These studies were undertaken in the axial area of the Mid-Atlantic Ridge between approximately 36°30' and 37°N latitudes. ABSTRACT large faulted blocks toward nearby fracture Le Pichon, 1974). We discuss here the de- zones suggests that spreading-center tec- tailed structure and evolution of the rift val- A detailed study of the structure of the tonics is affected by fracture-zone tectonics leys between fracture zones A and B (rift Mid-Atlantic Ridge median valley and rift throughout the length of the rift in the valley 2) and B and C (rift valley 3) and the mountains near lat 37°N (FAMOUS) was FAMOUS area. Both the crustal accretion rift mountains in these areas. Fine-scale conducted using a deep-tow instrument zone and transform fault zone are narrow, deep-tow studies of the inner floor of rift package. The median valley may have either only 1 to 2 km wide, over short periods of valley 2 are discussed by Luyendyk and a very narrow inner floor (1 to 4 km) and time. In the course of millions of years, how- Macdonald (1977). -
2007 MTS Overview of Manned Underwater Vehicle Activity
P A P E R 2007 MTS Overview of Manned Underwater Vehicle Activity AUTHOR ABSTRACT William Kohnen There are approximately 100 active manned submersibles in operation around the world; Chair, MTS Manned Underwater in this overview we refer to all non-military manned underwater vehicles that are used for Vehicles Committee scientific, research, tourism, and commercial diving applications, as well as personal leisure SEAmagine Hydrospace Corporation craft. The Marine Technology Society committee on Manned Underwater Vehicles (MUV) maintains the only comprehensive database of active submersibles operating around the world and endeavors to continually bring together the international community of manned Introduction submersible operators, manufacturers and industry professionals. The database is maintained he year 2007 did not herald a great through contact with manufacturers, operators and owners through the Manned Submersible number of new manned submersible de- program held yearly at the Underwater Intervention conference. Tployments, although the industry has expe- The most comprehensive and detailed overview of this industry is given during the UI rienced significant momentum. Submersi- conference, and this article cannot cover all developments within the allocated space; there- bles continue to find new applications in fore our focus is on a compendium of activity provided from the most dynamic submersible tourism, science and research, commercial builders, operators and research organizations that contribute to the industry and who share and recreational work; the biggest progress their latest information through the MTS committee. This article presents a short overview coming from the least likely source, namely of submersible activity in 2007, including new submersible construction, operation and the leisure markets. -
2017 Chicxulub Revealed
THE UNIVERSITY TEXAS OF AUSTIN AT JACKSON• SCHOOL GEOSCIENCES OF 2017 NEWSLETTER• Newsletter2 017 Chicxulub Revealed A first look at rocks from the crater left by the asteroid that wiped out non-avian dinosaurs WELCOME Dear Alumni and Friends he devastation that Hurricane Harvey brought to Texas communities in August was a tragic reminder of how vital it is to understand our planet and T its processes. Shortly after the hurricane struck, our scientists, through our Rapid Response program, began to conduct research to understand how Harvey has impacted the coast and offshore Gulf of Mexico. This research will help determine the best ways to deal with many coastal issues in the aftermath of the storm, and how we might better prepare for such events in the future. You can read more about the mission on page 18. Rapid response efforts on the effects of abrupt, catastrophic geoscience events COVER: GRANITE FROM THE PEAK RING OF provide critical science that can benefit society. This is what we strive to do here at the THE CHICXULUB CRATER FORMED BY THE Jackson School of Geosciences. This year’s Newsletter holds some tremendous examples. ASTEROID STRIKE THAT WIPED OUT ALL NON- AVIAN DINOSAURS I’d like to draw your attention to the story on page 58 about the scientific coring mission led by Peter Flemings to bring back samples of methane hydrate from ABOVE: MEMBERS OF THE JACKSON beneath the Gulf of Mexico. This is a cutting-edge research project on a potential SCHOOL-LED TEAM CORING FOR SAMPLES OF METHANE HYDRATE IN THE GULF OF MEXICO future energy source that very few schools in the world would be able to mount. -
Science Policy Bulletin, Volume 2 Number 5. INSTITUTION Battelle Memorial Inst., Columbus, Ohio
DOCUMENT RESUME ED 042 598 SE 007 869 AUTHOR Brainard, Robert W., Ed. TITLE Science Policy Bulletin, Volume 2 Number 5. INSTITUTION Battelle Memorial Inst., Columbus, Ohio. Columbus Labs. PUB DATE Oct 69 NOTE 66p. EDRS PRICE EDRS Price MF-$0.50 HC-$3.40 DESCRIPTORS *Annotated Bibliographies, Federal Legislation, Financial Support, Foreign Policy, *Government Role, Natural Resources, *Policy Formation, *Scientific Research, Socioeconomic Influences, *Technology ABSTRACT This bimonthly bulletin reports annotations of current literature on science and public policy. Coverage includes both "policy for science..!, and "science for policy" in the areas of engineering, technical and narrowly specialized publications. Its purpose.is to aid persons who study, formulate, or implement public policy related to science by alerting them to new additions to tilt. science policy literature. Documents are listed under the headings of (1) General, (2) Science, Domestic Problems and National Goals, (3) Needs and Allocation of Resources for Science,(4) National R & D Programs,(5) Science, Education, and the University, (6) Science Management and Policy-Making Bodies, (7) Science, Foreign Affairs, and National Defense, and (8) Science Policy in Foreign Countries. The 109 documents are listed under°one of these categories. Cross-indexing is not used. Major meetings and other events in the area are also reported. (RR) Vol. 2 Number 5 October, 1969 U.S. DEPARTMENT OF HEALTH, EDUCATION & WELFARE OFFICE OF EDUCATION THIS DOCUMENT HAS BEEN REPRODUCED EXACTLY AS RECEIVED FROM THE PERSON OR ORGANIZATION ORIGINATING IT. POINTS OF VIEW OR OPINIONS STATED DO NOT NECESSARILY REPRESENT OFFICIAL OFFICE OF EDUCATION POSITION OR POLICY. Science Policy Bulletin Battelle Memorial Institute SCIENCE POLICY BULLETIN The Bulletin, published bimonthly, reports the current literature in the area of science and public policy.