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LIGHTWEIGHT MATERIALS WHICH CAN PROTECT EQUIPMENT AND STRUCTURES FROM THE DAMAGING EFFECTS OF UNDERWATER EXPLOSIONS WOULD HAVE MANY APPLICATIONS ON SUBMARINES AND SURFACE SHIPS. CLOSED CELL RIGID EPOXY FOAM WITH APPROXIMATELY 55% AIR VOID CONTENT BY VOLUME HAS BEEN SHOWN TO ATTENUATE THE PEAK PRESSURE IN SHOCK WAVES DUE TO AN UNDERWATER EXPLOSION. THE OBJECTIVE OF THIS PHASE I FEASIBILITY STUDY IS ...

A RESEARCH AND DEVELOPMENT PROGRAM AIMED AT STUDYING ELECTROPOLYMERIZED METALLO-POR-PHYRINS, PHTHALOCYANINES AND TETRAAZANNULENES AS CATALYSTS IN THE LI/SOCL(2) CELL IS PROPOSED. THESE CATALYSTS WILL BE DEPOSITED AS CONDUCTIVE POLYMER FILMS ON THE POROUS CARBON ELECTRODES, PRIOR TO THEIR USE IN LI/SOCL(2) CELLS, BY ELECTROCHEMICAL OXIDATION OF THE CORRESPONDING MONOMERS IN A SUITABLE SOLVENT SUCH ...

THE METHODS TO BE EMPLOYED IN THIS PARTICIPATORY EXPERIMENT SEEK TO UTILIZE VISUAL AND DEMONSTRATION METHODS IN TEACHINGNEW CRAFTS AND BUSINESS SKILLS TO WOMEN WITH MULTIPLE BARRIERS, (E.G. ENGLISH LANGUAGE DEFICIENCIES; LOW SELF-ESTEEM; LACK OF PERSONAL PROBLEM SOLVING SKILLS) IN ORDER TO OVERCOME THE DISSIMILARITIES OF CULTURAL AND ETHNIC VALUES AND TRADITIONAL SKILLS. IT IS THE AIM OF THIS EXPE ...

IN 1979 BATTELLE COLUMBUS LABORATORIES STUDIED ADVANCED WIRE ROPE. HOWEVER, THEIR EXCESSIVE COST NULLIFIED THEIR UTILITY FOR IMPROVED DECK PENDENT AND PURCHASE CABLE RELIABILITY AND LONGER LIFE. ALTERNATIVELY, EXTRA IMPROVED PLOW STEEL (EIP) OFFERS THE BEST COST/TECHNICAL BENEFIT PERFORMANCE. EIP-S MECHANICAL PROPERTIES DEGRADE, HOWEVER, UNDER SEVERAL OPERATING FACTORS. FIRST, THE HIGH-VELOCITY TR ...

SHOCK VULNERABILITY IS AN IMPORTANT DESIGN CONSIDERATION FOR NAVAL SURFACE SHIPS AND SUBMARINES. ALTHOUGH ANALYTICAL PROCEDURES EXIST FOR EVALUATING THE RESPONSE TO SHOCK OF ELASTIC STRUCTURES IMMERSED INWATER, VERIFICATION IS BY MEANS OF SHOCK TESTS. THE CURRENT PRACTICE OF SHOCK TESTING FULL SCALE SURFACE SHIPS IS COSTLY AND DOES NOT FACILITATE THE DEVELOPMENT OF NEW HULL FORMS AND STRUCTURES. T ...

THE U.S NAVY HAS A REQUIREMENT FOR AN INTEGRATED SHIPBOARD INTERIORCOMMUNICATION SYSTEM WHICH USES A FIBER OPTIC LOCAL AREA NETWORK (LAN) AS A TRANSMISSION MEDIUM, AND THAT WILL SUPPORT BOTH VOICE AND DATA INFORMATION TRANSFER. OTHER REQUIREMENTS INCLUDE USE OF AN "OPEN ARCHITECTURE", USE OF MILITARY AND/OR COMMERCIAL STANDARDS, IS SURVIVABLE. IS MODULAR (FOR USE ON VARIOUS SIZE VESSELS), AND PROV ...

WE REQUEST FUNDS TO SUPPORT RESEARCH AIMED AT IMPROVING THE SPATIAL RESOLUTION OF RADARS ON OCEAN TOWERS IN THIS PROPOSAL. SPECIFICALLY, WE PROPOSE TO DEVELOP FOCUSED PHSED-ARRAY CONCEPTS THAT WILL BE APPLICABLE TO FUTURE TOWER EXPERIMENTS. WE SHOW THAT ANTENNA ARRAYS CAN ACHIEVE FOOTPRINTS AREAS SMALLER THAN 1M2. THE DATA WILL BE COLLECTED AND STORED IN SUCH A MANNER THAT THE FOOTPRINT SIZE AND P ...

THE DEVELOPMENT OF A DAY/NIGHT PRATICE CARTRIDGE THAT WILL NOT START FIRES WILL BE CONDUCTED IN TWO PHASES.

DUE TO THE FORTHCOMING BAN ON ALL OZONE DEPLETING REFRIGERANTS, THENAVY NEEDS NEW REFRIGERATION TECHNOLOGIES TO REPLACE THOSE USING SUCH CHEMICALS. THE PROPOSED SYSTEM USES SOME OF THE INHERENT DESIGN ADVANTAGES OF A SCREW COMPRESSOR TO ADAPT IT TO A VAPOR COMPRESSION REFRIGERATION SYSTEM USING REFRIGERANT HFC-134A. HFC-134A HAS NO OZONE DEPLETION POTENTIAL. THE USE OF SCREW COMPRESSORS CAN OVERCO ...