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MAKING PIPING systems FIRE-SAFE - SIMPLE SOLUTIONS FOR PREVENTING A DISASTER

NAVAL ENGINEERS JOURNAL 1994年第3期106卷 285-295页

作者： BHASIN, V NILSEN, L GUPTA, K CONROY, D Vinod 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, 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 could result in a fire of catastrophic proportions. This paper discusses 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 other related subjects. Details are also provided on 78 fires that have occurred on Navy surface ships in the last ten years and their causes.

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THE STRUCTURAL SYNTHESIS DESIGN PROGRAM - ITS IMPACT ON THE FLEET

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NAVAL ENGINEERS JOURNAL 1983年第3期95卷 87-99页

作者： WIERNICKI, CJ GOODING, TG NAPPI, NS Mr. Christopher J. Wiernicki:graduated from Vanderbilt University in 1980 with a B.E. degree in Structural Engineering. Upon graduation he began his professional career at the David Taylor Naval Ship Research and Development Center. As a structural engineer in the Surface Ship Structures Division Mr. Wiernicki was responsible for developing improved methods and procedures for designing and evaluating structural systems for surf ace combatants. Specific projects included design for producibility development and evaluation of automated ship structural design methods and participation in the structural design of the CG 49 Cruiser and the current DDG 51 Destroyer. In 1982 Mr. Wiernicki received his M.S. degree in Ocean Engineering from George Washington University. Mr. Wiernicki is a recipient of the SNAME 1982-82 Graduate Scholarship and is currently doing post graduate work in Naval Architecture at Massachusetts Institute of Technology he is a member of ASNE SNAME ASCE and Chi Epsilon. Mr. Thomas G. Gooding:graduated in 1975 from the University of Michigan with B.S. degrees in Oceanography and Naval Architecture. After graduation he began his professional career at the Naval Ship Engineering Center (NA VSEC) as a structural engineer. From 1975 till 1978 Mr. Gooding worked in the area of ship dry docking and was the structural task leader on the complex overhaul ofUSS Long Beach (CGN-9). Mr. Gooding returned to the University of Michigan to receive a M.S. in Naval Architecture in 1979. Currently Mr. Gooding is the structural task leader on the DDGX/DDG 51 program at the Naval Sea Systems Command (NAVSEA). Mr. Gooding is a member of SNAME and the Naval Institute. Mr. Natale S. Nappi:graduated from City College of New York in 1954 with a Bachelor of Civil Engineering and received his M.S. in Civil Engineering from Polytechnic Institute of Brooklyn in 1959. He began his professional career in 1964 at the New York Naval Shipyard as a Naval Architect (Structure) performing detail structural design and fabrication s

The structural design of a ship's section is a complicated, repetitive and time consuming task. With the advent of new technology, high speed computers have enabled the ship designer to accomplish in a matter of seconds what would formerly take days to accomplish by hand. The Structural Synthesis Design Program (SSDP) is a N avy developed computer-aided design tool which is used to design (or to analyze) the longitudinal scantlings for a variety of ship cross sections, consisting of any practical combinations of decks, platforms, bulkheads and materials, i.e., various steel and aluminum alloys. The final hull section design will have the lowest practical weight for the chosen geometric configuration, structural arrangements, and imposed loadings. The scantling developed by the program will satisfy all U.S. N avy ship structural design criteria. An explanation of the objective and design elements of N avy ship structures is included. The rationale behind the SSDP design philosophy is developed along with the significant program capabilities. In an attempt to highlight the influence of automated design procedures on the current naval ship design process, the effect of the SSDP on the DDG 51 destroyer structural development is addressed.

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THE NO FRAME CONCEPT - ITS IMPACT ON SHIPYARD COST

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NAVAL ENGINEERS JOURNAL 1984年第3期96卷 218-232页

作者： NAPPI, NS WALZ, RW WIERNICKI, CJ Natale S. Nappi:graduated from City College of New York in 1954 with a B.S. degree in civil engineering and received his M.S. in civil engineering from the Polytechnic Institute of Brooklyn in 1959. He began his professional career in 1954 at the New York Naval Shipyard as a naval architect (structures) performing detail structural design and fabrication studies for CVAs LPDs DDs and CGs and eventually became a supervisory naval architect (structures). From 1965 to 1973 he was a member of the staff of the Computer-Aided Design Division at the David Taylor Naval Ship Research and Development Center (DTNSRDC). As such he was involved in the development of the computer structural design tool the SSDP (in association with Frank M. Lev) and automated detail design programs (CASDOS). His current position is Senior Naval Architect Consultant in the structural integrity group of the Ship Structures Division Structures Department DTNSRDC. Mr. Nappi is the author and co-author of numerous technical papers and reports covering a wide spectrum of topics such as automated structural design process design for producibility and survivability material weight and cost trade-off studies and structural weight determination for high performance ships (i.e. SES SWATH HYSWAS). He has lectured on the subjects of design for survivability and ship structures at the Naval Post Graduate School and MIT. He is a member of ASNE ASCE U.S. Naval Institute Sigma Xi and is a registered Professional Engineer in the State of New York. Mr. Nappi was a member of the NAVSEA working commitee for the computer supported design planning effort and is currently a member of the DTNSRDC ASSET Advisory Committee. Ronald W. Walz:graduated in 1974 from Pennsylvania State University with a B.S. degree in civil engineering. He began his professional career in 1974 at the David Taylor Naval Ship Research and Development Center as a structural engineer in the structural design concepts group of the Ship Structures Division Structures Department.

A proposed cost effective alternative to current U.S. Navy structurally configured hulls is presented in this paper. This proposed design for producibility concept involves the elimination of structural stanchions and transverse web frames. The potential impact of this “no frame” concept on structural design, weight and construction and material costs for naval surface frigates and destroyers is reflected in 1) reduced costs for the installation of distributive systems and 2) a reduced number and complexity of structural details providing a more reliable and less costly structure. This study was performed in three parts: 1) Determine the most feasible length between bulkheads without frames; 2) Using this length perform detail weight studies and construction and material costs analysis comparison on a 72-foot long hull module, with and without frames, for a FFG-7, and 3) Estimate the saving in man hours of labor on the installation of distributive systems and shipfitting for an FFG-7. For the feasible length studies on the “no frame” structural configuration, thirty-seven strength, weight and vertical center of gravity studies were performed on two ship classes; twenty-two on the FFG-7 class and fifteen on the DD-963 class. The detailed weight studies and construction and material cost analyses were conducted for FFG-7 “no frame” and “as built” modules. Results indicating the “no frame” concept module was 6.8% heavier and 14.8% less costly than the “as built” module. For the impact of an FFG-7 “no frame” structurally configured hull on the cost of labor required for the installation of distributive systems and for other functional work such as ship fitting, welding, and electrical, this study indicated a reduction of 169,206 labor hours per ship, representing 7.12% of the total required man hours to fabricate an FFG-7 class ship. With the employment of the “no frame” concept, certain areas of significant concern and potential risk were addressed. These include: 1) t

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The forefront of chemical engineering research

Nature Chemical Engineering

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Nature Chemical engineering 2024年第1期1卷 18-27页

作者： Laura Torrente-Murciano Jennifer B. Dunn Panagiotis D. Christofides Jay D. Keasling Sharon C. Glotzer Sang Yup Lee Kevin M. Van Geem Jean Tom Gaohong He Department of Chemical Engineering and Biotechnology University of Cambridge Cambridge UK Chemical and Biological Engineering Center for Engineering Sustainability and Resilience Northwestern University Evanston IL USA Department of Chemical and Biomolecular Engineering University of California Los Angeles Los Angeles CA USA Department of Chemical & Biomolecular Engineering University of California Berkeley Berkeley CA USA Department of Bioengineering University of California Berkeley Berkeley CA USA California Institute of Quantitative Biosciences (QB3) University of California Berkeley Berkeley CA USA Division of Biological Systems and Engineering Lawrence Berkeley National Laboratory Berkeley CA USA Joint BioEnergy Institute Emeryville CA USA Center for Biosustainability Danish Technical University Lyngby Denmark Center for Synthetic Biochemistry Shenzhen Institutes for Advanced Technologies Shenzhen China Department of Chemical Engineering University of Michigan Ann Arbor MI USA Metabolic and Biomolecular Engineering National Research Laboratory Systems Metabolic Engineering and Systems Healthcare Cross-Generation Collaborative Laboratory Department of Chemical and Biomolecular Engineering (BK21 four) BioProcess Engineering Research Center Korea Advanced Institute of Science and Technology (KAIST) Daejeon Republic of Korea Laboratory for Chemical Technology Department of Materials Textiles and Chemical Engineering Faculty of Engineering and Architecture Ghent University Ghent Belgium Chemical Process Development Global Product Development and Supply Bristol Myers Squibb New Brunswick NJ USA State Key Laboratory of Fine Chemicals R&D Center of Membrane Science and Technology School of Chemical Engineering Panjin Institute of Industrial Technology Liaoning Key Laboratory of Chemical Additive Synthesis and Separation Dalian University of Technology Dalian Liaoning China

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Correction to: Production efficiency of the bacterial non-ribosomal peptide indigoidine relies on the respiratory metabolic state in S. cerevisiae

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Microbial cell factories 2019年第1期18卷 218页

作者： Maren Wehrs Jan-Philip Prahl Jadie Moon Yuchen Li Deepti Tanjore Jay D Keasling Todd Pray Aindrila Mukhopadhyay Biological Systems and Engineering Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA. Institut für Genetik Technische Universität Braunschweig Brunswick Germany. Joint BioEnergy Institute Lawrence Berkeley National Laboratory Emeryville CA 94608 USA. Advanced Biofuels and Bioproducts Process Development Unit Lawrence Berkeley National Laboratory Emeryville CA 94608 USA. Department of Plant and Microbial Biology University of California Berkeley CA 94720 USA. Department of Bioengineering University of California Berkeley CA 94720 USA. Department of Chemical and Biomolecular Engineering University of California Berkeley CA 94720 USA. The Novo Nordisk Foundation Center for Biosustainability Technical University of Denmark Kongens Lyngby Denmark. Synthetic Biochemistry Center Institute for Synthetic Biology Shenzhen Institutes for Advanced Technologies Shenzhen China. Biological Systems and Engineering Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA. amukhopadhyay@lbl.gov. Joint BioEnergy Institute Lawrence Berkeley National Laboratory Emeryville CA 94608 USA. amukhopadhyay@lbl.gov. Environmental Genomics and Systems Biology Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA. amukhopadhyay@lbl.gov.

Following publication of the original article [1], the authors have noted that the standard curve in Additional file 1: Figure S7 is incorrect.

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Adsorption and Self‐Assembly of Peptides on Mica Substrates†

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Angewandte Chemie 2005年第13期117卷

作者： Conor Whitehouse Jiyu Fang Amalia Aggeli Mark Bell Rik Brydson Colin W. G. Fishwick Jim R. Henderson Charles M. Knobler Robert W. Owens Neil H. Thomson D. Alastair Smith Neville Boden Centre for Self‐Organising Molecular Systems Department of Chemistry University of Leeds Leeds LS2 9JT UK Fax: (+44) 113‐343‐6452 Present address: Research and Development Division Fujirebio Inc. 51 Komiya‐cho Hachioji‐shi Tokyo 192‐0031 Japan Fax: (+81) 426‐468‐325 Department of Chemistry and Biochemistry University of California Los Angeles CA 90095‐1569 USA Institute for Materials Research School of Process Environmental and Materials Engineering University of Leeds Leeds LS2 9JT UK Department of Physics and Astronomy University of Leeds Leeds LS2 9JT UK

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THE EFFECT OF THERMAL FABRICATION PRACTICES ON ALUMINUM

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NAVAL ENGINEERS JOURNAL 1980年第5期92卷 37-43页

作者： HAY, RA HOLTYN, CH Mr. Robert A. Hayis currently a Welding Consultant and prior to his retirement in 1977 was the Director of Welding. Engineering & Technical Services Department. Reynolds Metals Company a position he had held since 1974. He received his formal education in Pennsylvania and New Jersey with additional studies in Welding Metallurgy at the University of California Los Angeles (UCLA). after which he spent seven years at the New York Naval Shipyard where he was a Welding Supervisor in charge of underwater welders (divers) and other specialized welding applications. Subsequent thereto he worked for the Linde Company Division Union Carbide Corporation in the R&D Laboratory on the development of the inert gas-welding processes TIG and MIG and as a Technical Sales Representative. In 1959. he joined the Engineering Services Department Reynolds Metals Company as a Welding Engineer where he specialized in cryogenic applications welder training programs and marine construction and was the Resident Welding Engineer in New Orleans. La. during the construction of the 306-foot all-aluminum Trailer shipSacal Borincano.In 1963 he accepted a position with Aero jet General Von Karman Center Azusa Calif. as a Process Engineer on the development of the aluminum and stainless steel propulsion systems for the APOLLO and ABLESTAR Space Vehicles. during which time he promoted the use of an electron beam welding system and a high strength aluminum alloy to produce the reliability required of the APOLLO Space Unit. Mr. Hay rejoined the Reynolds Metals Company as Chief Welding Engineer where he produced the first high speed technical movie “The Effect of Arc Variation on Aluminum Welds” and also developed the widely used technical comic book “MIG Welding Aluminum”with Pete and Harry which was later translated into the Parsi language for use in the Mideast. A Life Member of the American Welding Society a Past Chairman of the Welding and Joining Committee and a Past Member of SNAME. he has contributed numerous technical papers

Various thermal practices may be used during metal fabrication. Although certain operations are routine for steel, they are not for aluminum. The properties of aluminum are different from those of steel, and the effect of high temperature on each metal is different. Aluminum does not experience any color change while being heated to the melting point. Temperature control is essential in order to prevent damage, to minimize the loss of mechanical properties, and to safeguard against reduced corrosion resistance. Hot forming and flame straightening can be used effectively to fabricate aluminum provided adjustments are made to the shipyard's routine steel practices. Even with the best procedures the post thermal properties of thick, heavy, aluminum parts may be below the published minimums. Accordingly, parts that are exposed to high temperatures for extended periods of time should be designed with reduced properties in mind. Ship structures must meet prescribed fairness tolerances. Distorted aluminum assemblies can be brought within standards through the use of a flame/quench technique. The shipyard's procedures must be approved for Navy work and scrupulously followed by trained crews in order to obtain acceptable results.

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SEAKEEPING BY DESIGN

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NAVAL ENGINEERS JOURNAL 1980年第2期92卷 157-178页

作者： COMSTOCK, EN KEANE, RG Mr. Edward N. Comstock is currently Head of the Surface Ship Hydrodynamics Section (SEA 32132) of the Hull Form Design Performance and Stability Branch Naval Sea Systems Command. He received his B.S.E. degree in Naval Architecture and Marine Engineering in 1970 and his M.S. degree in Ship Hydrodynamics in 1974 both from the University of Michigan. Mr. Comstock began his professional career with the U.S. Navy in 1974 as a Seakeeping Specialist in the Hull Form and Fluid Dynamics Branch of the former Naval Ship Engineering Center being involved in improving the design of naval ships through the integration of R&D technology advances into the ship design process. His efforts prior to 1980 were mainly aimed at developing and establishing Seakeeping Performance Assessment and Design Practices. Other responsibilities have included numerous ship performance investigations in still water and in the sea environment in support of ship design and specific Fleet problems. Prior to his employment by the Navy he worked in the Structural and Hydrodynamic Groups of General Dynamics' Electric Boat Division. There his activities spanned the areas of Submarine structural and Hydrodynamic Design and Construction. A member of ASNE since 1978. he is also a member of ASE and SNAME and has been active in supporting the efforts of the SNAME H-7 (Seakeeping) Panel the National Science Foundation (NSF). and the NATO Naval Armaments Group 6/Sub-Group 5 (Seakeeping). Mr. Robert G. Keane Jr. is presently Head of the Hull Form Design. Performance and Stability Branch (SEA 3213). Ship Design and Integration Directorate (SEA 03). Naval Sea Systems Command (NAVSEA). He received his B.E.S. degree in Mechanical Engineering from The Johns Hopkins University in 1962. his M.S. degree in Mechanical Engineering from the Stevens Institute of Technology in 1967. and his M.S.E. degree in Naval Architecture from the University of Michigan in 1970. Additionally he has done graduate work in Management Science and Operations Research at The Johns Ho

“Seakeeping … is the ability of our ships to go to sea, and Successfully and safely execute their missions despite adverse environmental factors.” — VAdm. R.E. Adamson. USN In June 1975, VAdm. R.E. Adamson, USN, then Commander Naval Surface Forces, U.S. Atlantic Fleet, addressed the participants of the Seakeeping Workshop [1] and established what has come to be a most profound definition of seakeeping as it relates to the U.S. Navy. In those few words he identified the two major issues facing the operator today and provided the focus for all subsequent seakeeping efforts within the design community at the Naval Sea systems Command (NAVSEA). For it is these two hues of mission sum and safety at sea which are addressed within NAVSEA, for each new ship design and for ships in the Fleet, in terms of: SEAKEEPING PERFORMANCE — Ability to execute mission in a sea environment, and SEAWORTHINESS — Ability to survive in an extreme sea environment. In the past, the design of ships exhibiting superior seakeeping performance and seaworthiness and seaworthiness has been looked upon by many as an art or an academic exercise. The objective of this paper then is to demonstrate clearly that the ability of our ships to execute their missions successfully and safely in a sea environment is not by chance but by design.

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Correction: Additive-mediated intercalation and surface modification of MXenes

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Chemical Society reviews 2022年第8期51卷 3314页

作者： Jing Zou Jing Wu Yizhou Wang Fengxia Deng Jizhou Jiang Yizhou Zhang Song Liu Neng Li Han Zhang Jiaguo Yu Tianyou Zhai Husam N Alshareef School of Environmental Ecology and Biological Engineering School of Chemistry and Environmental Engineering Key Laboratory of Green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Wuhan Institute of Technology Wuhan Hubei 430205 P. R. China. 027wit@***. Key Laboratory of Rare Mineral Ministry of Natural Resources Geological Experimental Testing Center of Hubei Province Wuhan Hubei 430034 P. R. China. Physical Science and Engineering Division Materials Science & Engineering King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia. husam.alshareef@kaust.edu.sa. State Key Laboratory of Urban Water Resources and Environment School of Environment Harbin Institute of Technology Harbin 150090 P. R. China. Institute of Advanced Materials and Flexible Electronics (IAMFE) School of Chemistry and Materials Science Nanjing University of Information Science & Technology Nanjing 210044 P. R. China. yizhou.zhang@***. Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials Nanjing University of Posts and Telecommunications Nanjing 210023 P. R. China. Institute of Chemical Biology and Nanomedicine (ICBN) State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P. R. China. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing State Key Laboratory of Silicate Materials for Architectures Wuhan University of Technology Wuhan Hubei 430070 P. R. China. Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province Shenzhen University Shenzhen 518060 P. R. China. State Key Laboratory of Material Processing and Die & Mould Technology School of Materials Science and Engineering H

Correction for 'Additive-mediated intercalation and surface modification of MXenes' by Jing Zou , , 2022, DOI: 10.1039/d0cs01487g.

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HIGH‐ACCURACY MARINE NAVIGATION WITH THE “BOTTLED STAR”

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Naval Engineers Journal 1964年第4期76卷 569-576页

作者： WEEMS, P.V.H. BENFIELD, CHARLES W. USN (Ret.) Captain Phillip Van Horn Weems USN Retired is the co-founder of the American Institute of Navigation a man whose name is referenced nine times in the index of “Bowditch” hardly needs an introduction in a navigation journal. Captain Weems has been a rallying point and idea innovator in marine navigation for over half a century. He is chairman of the board and technical mentor of Weems System of Navigation Inc. internationally known supplier of courses books instruments and charts at Annapolis Maryland. Captain Weems' books and inventions may be found in the chart room of nearly every English speaking country's vessels as well as those of many other nations. He has recently devoted enthusiastic attention to improving the accuracy and convenience of the navigator's tools by applying some of the advances of modern aerospace and electronics technology. Born in Montgomery County Tennessee 29 March 1889 he was graduated from the U.S. Navy Academy in 1912. His honors and awards include: Bronze Star Gold Medal Aero Club of France Royal Society of Arts Award for second setting watch Magellanic Premium from American Philosophical Society Gold Medal from British Institute of Navigation and Thurlow Award American Institute of Navigation. He holds seven patents in navigation and has written many textbooks and papers. He was on the 1920 Olympic Wrestling team as well as being a former All American Team member after his accomplishments on the Navy football team. Charles W. Benfield is a Senior Development Engineer in the Systems section of Honeywell's Aero Division Florida facility at St. Petersburg. He received his degree in Electrical Engineering at the University of Florida in 1948. A former regular navy man with six years sea duty and flying he has been actively interested in the art of way finding for over 20 years. Presently he is actively working to apply the company's capabilities to automation of the marine navigation process but he also has been active in studies of manual space navig

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