2020 Annual Research Report
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Acid-Base Interactions in Wetting
J. rldlresiortSci. Tetltttol. \irl. -5.No. l. pp.57-69 ( l99l ) o VsP t9el. Acid-baseinteractions in wetting GEORGE M. WHITESIDES,*HANS A. BIEBUYCK.JOHN P.FOLKERS andKEVIN L. PRIME Departntent of Chentistry,Harvard Universiry',Cambridge, hlA 02138,USA Revisedversion received 27 Aueust1990 Abstract-The studv of the ionizationof carboxylicacid groups at the interfacebetween organic solidsand water demonstratesbroad similaritiesto the ionizationsof thesegroups in homogeneous aqueoussolution, but with importantsystematic differences. Creation of a chargedgroup from a neutralone by protonationor deprotonation(whether -NHr* from -NH, or -CO; from -CO,H) at the interfacebetu'een surface-functionalized polyethylene and \r'ateris more difficult than that in homogeneousaqueous solution. This differenceis probably related to the low effectivedielectric constantof the interface(5=9) relativeto water (e=80). It is not known to what extentthis differencein e (and in other propertiesof the interphase,considered as a thin solventphase) is reflectedin the stabilityof the organicions relativeto their neutral forms in the interphaseand in - solution,and to whatextent in differencesin the concentrationof H' and OH in the interphaseand in solution.Self-assembled monolayers (SAMs)-especially of terminallyfunctionalized alkanethiols (HS(CH:),,X) adsorbedon gold-provide model systemswith relativelywell-ordered structures thar are useful in establishingthe fundamentalsof ionizationof protic acidsand basesat the interface betr"'eenorganic solids and water.These systems,coupled r.r'ithnew analyticalmethods such as photoacousticcalorimetry (PAC) and contact angletitration, may make it possibleto disentangle some of the complex puzzlespresented by proton-transferreactions in the environmentof the organicsolid-* ater interphase. Keyx'ords:Contact ansle titration; photoacoustic calorimetrv: poly'ethylene carboxylic acid: contact angle:polvmer surfaces; u'etting; self-assembled monolavers. -
New ELBRIGHT TOSHIBA HIGH SPEED ELEVATORS Concept of New ELBRIGHT
New ELBRIGHT TOSHIBA HIGH SPEED ELEVATORS Concept of New ELBRIGHT New ELBRIGHT CONTENTS ●New ELBRIGHT Machine-Room TOSHIBA HIGH SPEED ELEVATORS PRODUCT CONCEPT New technology planning/Group control system Traffic New ELBRIGHT A new concept in high-speed elevators. Elevator technology ·· ❸~❹ Toshiba never stops introducing the latest tech- nologies and polishing its high-speed elevator expertise. Toshiba proves this again with THE GUIDE LINE-1 New ELBRIGHT : a new elevator for a new age. Traffic planning / Group control system ·· ❺~❽ Toshiba engineering has combined to produce the 1-1 Deciding speed ········ ❻ world’s first inverter-control high-speed elevator, SPACE SAVING 1-2 Deciding number of cars ········ ❻ 1-3 Deciding passenger capacity ········ ❼ with the high-efficiency control, energy efficiency, ●Conventional type up to 50% reduction 1-4 Deciding service floors ········ ❼ elevator machine-room in machine room space and quiet operation demanded by today’s society. 1-5 Deciding the layout ········ ❼ 1-6 Operating system ········ ❽ 1-7 Group control system (EJ-1000series) ········ ❽ Soundproofing and harmonic distortion measures THE GUIDE LINE-2 Providing environmentally conscious products (New ELBRIGHT) Toshiba elevator group is promoting the development of environmentally Soundproofing and conscious products, which involves environmentally conscious product design, harmonic distortion the assessment of environmental impact of products and disclosure of the measures ·· 10~14 environmental performance of products. Products are developed -
Hydride Abstraction and Deprotonation – an Efficient Route to Low Co-Ordinate Phosphorus and Arsenic Species
Hydride Abstraction and Deprotonation – an Efficient Route to Low Co-ordinate Phosphorus and Arsenic Species Laurence J. Taylor, Michael Bühl, Piotr Wawrzyniak, Brian A. Chalmers, J. Derek Woollins, Alexandra M. Z. Slawin, Amy L. Fuller and Petr Kilian* School of Chemistry, EastCHEM, University of St Andrews, St Andrews, Fife, KY16 9ST, UK E-mail: [email protected] URL: http://chemistry.st-andrews.ac.uk/staff/pk/group/ Supporting information for this article is given via a link at the end of the document. Abstract Treatment of Acenap(PiPr2)(EH2) (Acenap = acenaphthene-5,6-diyl; 1a, E = As; 1b, E = P) with Ph3C·BF4 resulted in hydride abstraction to give [Acenap(PiPr2)(EH)][BF4] (2a, E = As; 2b, E = P). These represent the first structurally characterised phosphino/arsino-phosphonium salts with secondary arsine/phosphine groups, as well as the first example of a Lewis base stabilised primary arsenium cation. Compounds 2a and 2b were deprotonated with NaH to afford low co-ordinate species Acenap(PiPr2)(E) (3a, E = As; 3b, E = P). This provides an alternative and practical synthetic pathway to the phosphanylidene-σ4-phosphorane 3b and provides mechanistic insight into the formation of arsanylidene-σ4-phosphorane 3a, indirectly supporting the hypothesis that the previously reported dehydrogenation of 1a occurs via an ionic mechanism. Introduction 4 Alkylidene-σ -phosphoranes (R2C=PR3), more commonly known as Wittig reagents, are widely used intermediates in the formation of C=C double bonds. The arsenic and phosphorus equivalents, 4 4 arsanylidene-σ -phosphoranes (RAs=PR3) and phosphanylidene-σ -phosphoranes (RP=PR3), are rare 4 by comparison. -
How to Soundproof Light Aircraft
1 October 2004 Introduction We first put these ideas down in 1990, in the form of an instruction sheet that we handed out with Super Sound Proofing foam mat. Over the years we’ve expanded them, mostly by feedback from users of the product and have printed thousands of these little booklets. You are invited to pass back your experiences‘ with this and the other products that have been added to our arsenal in the fight against noise. We now have acoustical foam materials to be used in Boats, Trucks and Cars as well as new materials used in Architectural applications for home wall a& ceilings, sound studios, gyms, industrial as well as for band practice in the garage! Our specialty is aircraft applications as it is the most challenging! We are always available for free consulting at anytime for any application, to help you with what we know about methods and materials for sound- proofing. We’ll provide free copies of this booklet to groups and Associations; just let us know how many you need. The latest version of this manual is available from our website at http://soundproofing.org/infopages/soundprf.html © Copyright 1998/2002/2004 by Bill Nash - all rights reserved. Reprint rights granted when full credit is given. 2 Logbook Certification letter: SUPER SOUNDPROOFING CO P.O. Box 985 Vista CA 92085 (760) 752-3030 October I3, 2004 RE: FAA CERTIFICATION OF “SUPER SOUNDPROOFING” MATERIAL To Whom it May Concern: This letter provides information regarding Super Soundproofing Material for which we are the mill distributors. This letter is to certify the material has FAA approval obtained by testing at a FAA approved lab. -
Oral Abstracts
1734-A-1902 Model systems for heterogeneous catalysts at the atomic level Hans-Joachim Freund1 1 Fritz-Haber-Institut der Max-Planck-Gesellschaft Our understanding of catalysis, and in particular heterogeneous catalysis, is to a large extent based on the investigation of model systems. Increasing the complexity of the models towards oxide supported nanoparticles, resembling a real disperse metal catalyst, allows one to catch in the model some of the important aspects that cannot be covered by metal or oxide single crystals per se. The main purpose of our studies is to provide conceptual insight into questions concerned with a variety of topics in catalysis, including support nanoparticle interaction, reactivity at the particle-support interface, strong metal support interaction, reactions in confined space and development of new instrumentation for surface science studies. The talk will address some of those issues. 1 1773-A-1902 Special metallic gasket sealing for the non-circular profile flanges Gao-Yu Hsiung1 1 NSRRC, Hsinchu, Taiwan Various types of the metallic gaskets for the non-circular profile flanges and the potential applications will be introduced. The sealing surface of flange is flat to accommodate the special metallic gasket with knife edges for the sealing. Both the flange and gasket are made of aluminum alloys and produced by the oil-free Ethanol-CNC-machining process that any non-circular profile, e. g. race-track, rectangular, key-hole, etc., flanges can be made. All the flanges and gaskets after oil-free machining can be assembled immediately without any chemical cleaning. The quality of ultrahigh vacuum at pressure < 20 nPa after vacuum baking has been approved. -
Recent Advances in the Sound Insulation Properties of Bio-Based Materials
PEER-REVIEWED REVIEW ARTICLE bioresources.com Recent Advances in the Sound Insulation Properties of Bio-based Materials Xiaodong Zhu,a,b Birm-June Kim,c Qingwen Wang,a and Qinglin Wu b,* Many bio-based materials, which have lower environmental impact than traditional synthetic materials, show good sound absorbing and sound insulation performances. This review highlights progress in sound transmission properties of bio-based materials and provides a comprehensive account of various multiporous bio-based materials and multilayered structures used in sound absorption and insulation products. Furthermore, principal models of sound transmission are discussed in order to aid in an understanding of sound transmission properties of bio-based materials. In addition, the review presents discussions on the composite structure optimization and future research in using co-extruded wood plastic composite for sound insulation control. This review contributes to the body of knowledge on the sound transmission properties of bio-based materials, provides a better understanding of the models of some multiporous bio-based materials and multilayered structures, and contributes to the wider adoption of bio-based materials as sound absorbers. Keywords: Bio-based material; Acoustic properties; Sound transmission; Transmission loss; Sound absorbing; Sound insulation Contact information: a: Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, China; b: School of Renewable Natural Resources, LSU AgCenter, Baton Rouge, Louisiana; c: Department of Forest Products and Biotechnology, Kookmin University, Seoul 136-702, Korea. * Corresponding author: [email protected] (Qinglin Wu) INTRODUCTION Noise reduction is a must, as noise has negative effects on physiological processes and human psychological health. -
Measuring Thriving Experience in Physical Working Spaces
Measuring Thriving Experience in Physical Working Spaces Yasmin Fathy† Erika A. Pärn† Denise J Wilkins†‡ Mohamed Zaki† †University of Cambridge, UK ‡Microsoft Research, Cambridge, UK {yafa2, eap47, mehyz2}@cam.ac.uk [email protected] ABSTRACT boosts their creativity and productivity while being in sur- The global pandemic has enforced corporations to shift into roundings that signal the brand of their chosen employers. new working patterns and design upgrades of the physical Employers are simultaneously expected to provide emotional working space - from packed desks to long-term modifica- support and help maintain the well-being of their employees. tions design, putting well-being at the heart of workplace Technology has empowered design of physical remote work- planning. This paper hypothesises the use of technologies to ing spaces - from collaboration tools such as Trello to com- revolutionise work practices for monitoring the well-being in a munication applications such as Slack and Microsoft Teams. physical space. New human-computer interaction approaches However, it does not determine the level of social engagement can be introduced to measure psychophysical and physical or capturing employees’ emotional states. When working with metrics to gauge occupant thriving in indoor office environ- such technologies, employees often choose their verbal and ments. They offer changes to the working environment, e.g. cognitive level of engagement. breaks and lighting to enhance productivity and well-being. This research investigates three domains to measure human The lock-down period has also been recorded to have cre- thriving indoor: (a) methods used in architecture domain to ated a long-term socioeconomic impact and increased the understand the impact of architecture design on human thriv- prevalence of mental health issues. -
Glossary of Terms Used in Photochemistry, 3Rd Edition (IUPAC
Pure Appl. Chem., Vol. 79, No. 3, pp. 293–465, 2007. doi:10.1351/pac200779030293 © 2007 IUPAC INTERNATIONAL UNION OF PURE AND APPLIED CHEMISTRY ORGANIC AND BIOMOLECULAR CHEMISTRY DIVISION* SUBCOMMITTEE ON PHOTOCHEMISTRY GLOSSARY OF TERMS USED IN PHOTOCHEMISTRY 3rd EDITION (IUPAC Recommendations 2006) Prepared for publication by S. E. BRASLAVSKY‡ Max-Planck-Institut für Bioanorganische Chemie, Postfach 10 13 65, 45413 Mülheim an der Ruhr, Germany *Membership of the Organic and Biomolecular Chemistry Division Committee during the preparation of this re- port (2003–2006) was as follows: President: T. T. Tidwell (1998–2003), M. Isobe (2002–2005); Vice President: D. StC. Black (1996–2003), V. T. Ivanov (1996–2005); Secretary: G. M. Blackburn (2002–2005); Past President: T. Norin (1996–2003), T. T. Tidwell (1998–2005) (initial date indicates first time elected as Division member). The list of the other Division members can be found in <http://www.iupac.org/divisions/III/members.html>. Membership of the Subcommittee on Photochemistry (2003–2005) was as follows: S. E. Braslavsky (Germany, Chairperson), A. U. Acuña (Spain), T. D. Z. Atvars (Brazil), C. Bohne (Canada), R. Bonneau (France), A. M. Braun (Germany), A. Chibisov (Russia), K. Ghiggino (Australia), A. Kutateladze (USA), H. Lemmetyinen (Finland), M. Litter (Argentina), H. Miyasaka (Japan), M. Olivucci (Italy), D. Phillips (UK), R. O. Rahn (USA), E. San Román (Argentina), N. Serpone (Canada), M. Terazima (Japan). Contributors to the 3rd edition were: A. U. Acuña, W. Adam, F. Amat, D. Armesto, T. D. Z. Atvars, A. Bard, E. Bill, L. O. Björn, C. Bohne, J. Bolton, R. Bonneau, H. -
22Nd International Congress on Acoustics ICA 2016
Page intentionaly left blank 22nd International Congress on Acoustics ICA 2016 PROCEEDINGS Editors: Federico Miyara Ernesto Accolti Vivian Pasch Nilda Vechiatti X Congreso Iberoamericano de Acústica XIV Congreso Argentino de Acústica XXVI Encontro da Sociedade Brasileira de Acústica 22nd International Congress on Acoustics ICA 2016 : Proceedings / Federico Miyara ... [et al.] ; compilado por Federico Miyara ; Ernesto Accolti. - 1a ed . - Gonnet : Asociación de Acústicos Argentinos, 2016. Libro digital, PDF Archivo Digital: descarga y online ISBN 978-987-24713-6-1 1. Acústica. 2. Acústica Arquitectónica. 3. Electroacústica. I. Miyara, Federico II. Miyara, Federico, comp. III. Accolti, Ernesto, comp. CDD 690.22 ISBN 978-987-24713-6-1 © Asociación de Acústicos Argentinos Hecho el depósito que marca la ley 11.723 Disclaimer: The material, information, results, opinions, and/or views in this publication, as well as the claim for authorship and originality, are the sole responsibility of the respective author(s) of each paper, not the International Commission for Acoustics, the Federación Iberoamaricana de Acústica, the Asociación de Acústicos Argentinos or any of their employees, members, authorities, or editors. Except for the cases in which it is expressly stated, the papers have not been subject to peer review. The editors have attempted to accomplish a uniform presentation for all papers and the authors have been given the opportunity to correct detected formatting non-compliances Hecho en Argentina Made in Argentina Asociación de Acústicos Argentinos, AdAA Camino Centenario y 5006, Gonnet, Buenos Aires, Argentina http://www.adaa.org.ar Proceedings of the 22th International Congress on Acoustics ICA 2016 5-9 September 2016 Catholic University of Argentina, Buenos Aires, Argentina ICA 2016 has been organised by the Ibero-american Federation of Acoustics (FIA) and the Argentinian Acousticians Association (AdAA) on behalf of the International Commission for Acoustics. -
ASI-Products-Brochure-4484329 | Acoustical Surfaces, Inc
Acoustical Surfaces, Inc. Soundproofing & Acoustical Products 888888..225577..22664433 wwwwww..aaccoouussttiiccaallssuurrffaacceess..ccoomm Echo Eliminator™ Sound Silencer™ Bonded Acoustical Cotton Panels Porous Expanded Polypropylene (P.E.P.P.) Acoustical Panels cho Eliminator is a high performance acous- Product Features: ound Silencer acoustical wall panels and Product Features: tical material made from recycled cotton. Recycled cotton ceiling tiles are an entirely new kind o f Class A Fire Rated EThis product is ideal for noise control applica - ▶Class A Fire Rated Sacoustical panel. Made from Porous Expanded ▶No fiberglass tions. Echo Eliminator can be used as acoustical ▶Lightweight Polypropylene (P .E.P .P.), these panels are Class ▶Moisture resistant (indoor) wall panels or hanging baffles. A fire rated and have both STC and NRC values. ▶Easy to install (adhesive application) ▶Non-fibrous Common applications are school gyms, class - ▶Impact resistant They are tackable, lightweight, and bacteria ▶Impact resistant rooms, lunch rooms, community centers and and fungi resistant. Sound Silencer panels ▶Durable ▶Non-abrasive surface any application where a high performance are great for gymnasiums, ice rinks, swimming ▶Low cost ▶Both STC & NRC ratings noise control product is needed. pools, clean rooms, laboratories, food prepara - ▶High light reflectance ▶Tackable surface Echo Eliminator may contribute to LEED ® credits, ti on areas and anywhere else where noise ▶ ▶ is Class A fire rated and 100% recyclable. It has High performance acoustical absorption control is important. Panels can be applied Bacteria & fungi resistant ▶ ▶ no VOC's, no formaldehyde and requires no Relocatable (with grommets) directly on wall and ceiling surfaces for attractive Lightweight warning labels. It is also fungi, mold, and ▶ and effective sound control. -
Report of Engineer's Committee on Three Mile Island
$e 0 C' 0 UNITED STATES NUCLEAR REGULATORY COMMISSION I ANNOUNCEMENT NO. 37 DATE: April 14, 1980 TO: Office Directors SUBJECT: REPORT OF ENGINEER'S COMMITTEE ON THREE MILE ISLAND The American Society of Mechanical Engineers has made available the attached report: " A REVIEW OF THE "REPORT OF THE PRESIDENT'S COMMISSION ON THE ACCIDENT AT THREE MILE ISLAND". Copies of the report are available for NRC staff from the Publications Services Unit, 016 Phillips Building. William J Besaw, Director Division of Technical Information and Document Control, ADM Attachment: As stated NRC Formq (1/76) A REVIEW OF THE "REPORT OF THE PRESIDENT'S COMMISSION ON THE ACCIDENT AT THREE MILE ISLAND" by the Engineers Committee On Three Mile Island March, 1980 Members and Alternates ENGINEERS COMMITTEE ON THREE MILE ISLAND* Peter A. Morris, Ph.D. American Nuclear Society Dwight Bellinger, P.E. - Chairman, William Ramsay, P.E. American Society for Quality Control American Society of Heating, Refrigerating and Air- S. Neal Broome, P.E. Conditioning Engineers Society of.Fire Protection Engineers John Reiter Spencer Bush, P.E., Ph.D. Society of Naval Architects American Society for Metals and Marine. Engineers Robert Cunitz, Ph.D. A.R. Robinson, P.E. System Safety Society American Society of Agricultural Engineers Brian Dunfield American Association of Coft Gavriel Salvendy, Ph.D. Engineers American Institute of Industrial Engineers Angelo Giambusso American Nuclear Society Otto A. Tennant, P.E. Vice Chairman J. Read Holland, Ph.D. National Society of Professional The Metallurgical Society of AIME Engineers Philip W. Hufnell, P.E. Harold Walton, Ph.D. -
About the Authors
1845 About the Authors Chong H. Ahn Chapter B.19 Authors University of Cincinnati Dr. Chong Ahn is a Professor of Electrical and Computer Engineering at the Department of Electrical University of Cincinnati. He obtained his Ph.D. degree in Electrical Engineering from and Computer Engineering the Georgia Institute of Technology in 1993 and then worked as a postdoctoral fellow and Computer Science at IBM T.J. Watson Research Center. His research interests include all aspects of Cincinnati, OH, USA [email protected] design, fabrication, and characterization of magnetic MEMS devices, microfluidic devices, protein chips, lab-on-a-chips, nano biosensors, point-of-care testing and BioMEMS systems. He is an associate editor of the IEEE Sensors Journal. Boris Anczykowski Chapter C.27 nanoAnalytics GmbH Dr. Boris Anczykowski is a physicist with an extensive research background in the Münster, Germany field of dynamic Scanning Force Microscopy. He co-invented the Q-Control technique [email protected] and received the Innovation Award Münsterland for Science and Economy in 2001 for this achievement. He is a managing director and co-founder of nanoAnalytics GmbH, a company specialized in the characterization of surfaces and interfaces on the micro- and nanometer scale. Massood Z. Atashbar Chapter A.7 Western Michigan University Professor Massood Z. Atashbar received the B.Sc. degree in electrical Department of Electrical engineering from the Isfahan University of Technology, Tehran, Iran, and Computer Engineering the M.Sc. degree in electrical engineering from the Sharif University of Kalamazoo, MI, USA Technology, Tehran, and the Ph.D. degree from the Department of [email protected] Communication and Electronic Engineering, RMIT University, Melbourne, Australia, in 1998.