作者:
H.Y.Parkd.H.ParkK.d.KangS.M.ShinS.S.KimI.r.JeonK.r.HaK.H.SeoDepartment of Polymer Science
Kyungpook National UniversityDaeguKorea R&D Center
Pyungwha Oilseal Industry Co.Ltd.DaeguKorea Advance Materials DivisionKorea Research Institute of Chemical TechnologyDaejeonKorea Department of Industrial ChemistryKyungil UniversityDaeguKorea Department of Chemical EngineeringKeimyung UniversityDaeguKorea
Cover: dynamics of laser‐induced alignment and surface grating formation of azobenzene polymer were examined in relation to the photoisomerization pathway of the excited states. Furtherdetails can be found in the Fu...
Cover: dynamics of laser‐induced alignment and surface grating formation of azobenzene polymer were examined in relation to the photoisomerization pathway of the excited states. Furtherdetails can be found in the Full Paper by M. J. Kim * , J. d. Lee, C. Chun, d. Y. Kim, S. Higuchi, and T. Nakayama on page 1753.
作者:
BHASIN, VNILSEN, LGUPTA, KCONrOY, dVinod Bhasin
P.E.:is a fellow engineer with the Westinghouse Electric Corporation machinery technology division Pittsburgh Pa. He has more than 19 years of experience in the supervision design application and testing of valves and actuators and has taught courses in solids mechanics for 10 years at Illinois Institute of Technology Chicago Il. Mr. Bhasin has written articles for the valve industry where he has been active in standards societies. He holds BS and MS degrees in mechanical engineering and an MS in industrial engineering. Mr. Bhasin is a member of the American Society of Mechanical Engineers (ASME) and the American Society for Testing and Materials (ASTM). He is co-chairman of the shipbuilding piping component subcommittee ASTM F25.13 and is also chairing three other task groups under ASTM F25. Lloyd Nilsen
P.E.:is the piping components branch head for NavSea. His career with NavSea includes 33 years of ship design construction and repair experience. He has held various positions in the power piping design division human factors manning and controls integration branch and submarine machinery systems branch. He has a BS degree in marine engineering from N.Y. State Maritime. Mr. Nilsen is also a member of the NavSea Association of Scientists and Engineers and a registered licensed professional engineer in Virginia and Washington D.C. Karan Gupta
P.E.:is a senior engineer with the Westinghouse Electric Corporation Machinery Technology Division Pittsburgh Pa. Prior to joining Westinghouse he was employed by Elliott Company Jeannette Pa. for 12 years as a metallurgical engineer. He has more than 25 years experience in metallurgical engineering including material selection and brazing and welding of piping pressure vessels and turbines. Mr. Gupta has BS and MS degrees in metallurgical engineering. He is a member of the American Welding Society (AWS) and is active in AWS filler metal subcommittee A5A. He is also a member of ASM International. Dennis Conroy:
is a chemical engineer
Loss of life and property losses totaling tens of billions of dollars have piping engineers scrambling to specify ''fire-safe'' components in fire-prone locations: on board ships, and in power plants, ...
Loss of life and property losses totaling tens of billions of dollars have piping engineers scrambling to specify ''fire-safe'' components in fire-prone locations: on board ships, and in power plants, refineries, and other perilous applications. Fire-safe valves, the first line of defense in containing a fire, were introduced some 25 years ago, with fire-safe actuators following soon afterwards. Little attention has been given, however, to designing and selecting the other piping components such as flanges, gaskets, bolting, and fittings to ensure their integrity in a fire. Just like in an electric circuit where, if a single component in series fails, the flow of electricity stops;likewise, the failure of a single piping component couldresult in a fire of catastrophic proportions. This paperdiscusses the availability of critical fire-safe components for Navy shipboard piping systems and provides some simple solutions which, if implemented, could prevent such a disaster. discussion is provided on how a fire starts and how it reaches catastrophic proportions, the definitions of survivability and fire-safe components, materials of construction, component design, fire-safe valves and actuators, gaskets, pipe flanges, flange bolting, pipe fittings and unions, brazing and welding, insulation, composite piping materials, and otherrelated subjects. details are also provided on 78 fires that have occurred on Navy surface ships in the last ten years and their causes.
The rapidly increasing cost and the uncertain supply of oil provide strong impetus to And ways to conserve ships' fuel and to optimize its use. Underwater mechanical removal of marine fouling from U.S. Navy ship h...
The rapidly increasing cost and the uncertain supply of oil provide strong impetus to And ways to conserve ships' fuel and to optimize its use. Underwater mechanical removal of marine fouling from U.S. Navy ship hulls and propellers has been shown to result in immediate andrather substantial fuel savings. The long-term savings from underwater cleaning is not nearly so certain because of the interactions between the cleaning techniques, paint performance, andregrowth of the fouling. Of particular interest is the sensitivity of the fuel savings as a function of cleaning frequency. The following three questions are addressed: does underwater cleaning lengthen Anti-Fouling (AF) paint service life? does underwater cleaning really save fuel? Is underwater cleaning cost effective? The answers to these questions obviously depend strongly upon the use of the ships and the manner in which they are operated. For U.S. Navy ships, underwater hull cleaning will save fuel provided adequate attention is given to the scheduling of the cleaning in terms of drydock cycle anddeployment. Additional efforts toward optimization of underwater cleaning also are discussed.
The paper presents a compact method fordisplaying vehicle weight distributions and utilizes this in a discussion of design “trade—offs” for military vehicles.
The paper presents a compact method fordisplaying vehicle weight distributions and utilizes this in a discussion of design “trade—offs” for military vehicles.
作者:
Birnbaum, L.S.Bukzin, E.A.Saroyan, J.r.Leon S. Birnbaum holds a B.S. degree in Chemistry from City College of New York. He has completed graduate work in Chemistry at the University of Maryland and Temple University
and in Technology and Management at American University. He has been with the Navy Department Washington since 1949 and is currently Head of the Coatings and Chemistry Branch of the Materials Development and Application Office of the Naval Ship Engineering Center. Responsibilities of this Branch include such items as coatings corrosion control techniques insulation chemical cleaning water treatment toxicology and detection and decontamination of biological and chemical warfare agents. Prior to this Mr. Birnbaum was employed in the Industrial Test Laboratory Philadelphia Naval Shipyard from 1938 to 1949. Work during this period included supervision of a section which inspected paints and allied materials and petroleum products to determine their suitability for Naval use and direction of research in fire retardant treatments. He is a member of the American Chemical Society
Washington Paint Technical Group. National Association of Corrosion Engineers and the American Society of Naval Engineers. Mr. Bukzin is a research and development program manager in the Naval Ship Systems Command of the Department of the Navy in the fields of non-metallic materials
fuels lubricants cold weather operations and several other areas. He is a graduate chemical engineer from New York University with additional training in naval architecture and management which culminated in his participation in the Senior Development Program at Cornell University during the summer of 1960. He has been employed by the Command and its predecessor for the past 2b years and has been in his present position of R&D planning and programming for the past six years. Prior to that his major technical responsibilities were in the field of elastomers and their applications. He received several awards and published a number of papers during those years. Mr. Bukzin is a me
report on paints used on surface ships and submarines for protection against corrosion and prevention of fouling, and on work connected with development and evaluation of such coatings;experiences with "hot plast...
详细信息
report on paints used on surface ships and submarines for protection against corrosion and prevention of fouling, and on work connected with development and evaluation of such coatings;experiences with "hot plastic", "cold plastic" and vinyl paints;hazards in use of vinyl paints and safety precautions;test techniques;new toxics (which are only kind so far satisfactory antifouling formulations) under test.
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