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THE MAJOR OBJECTIVE OF THE RESEARCH PROPOSED IS EVALUATION OF THE TECHNICAL FEASIBILITY OF THE NEW DESIGN FEATURES OF THE FILTER AND A COMPARISON OF ITS PERFORMANCE WITH CONVEN- TIONAL FILTERS IN TREATMENT OF WASTEWATERS. THE MAJOR SPECIFIC FEATURE OF THE FILTER IS A STONE-GRANULAR MEDIA BED WHICH IS EXPECTED TO PROVIDE A NON CLOGGING OPERATION, LONGER FILTRATION RUNS AND GREATER DIRT CAPACITY THA ...

NASA IS CONTINUALLY DEVELOPING NEW SYSTEMS RANGING FROM COMPUTER SOFTWARE TO TEST FACILITIES TO LARGE SPACECRAFT. EACH SYSTEM DEVELOPMENT IS INITIATED AND CONTROLLED THROUGH THE USE OF REQUIREMENTS SPECIFICATIONS. THE PROPOSED STUDY WILL DETERMINE THE FEASIBILITY OF DEVELOPING AN AUTOMATED TECHNICAL DOCUMENTATION SYSTEM FOR A DESK TOP COMPUTER. THE SYSTEM WILL BE PROTOTYPED TO DEVELOP AND TEST CON ...

SUPER ACCURATE ADAPTIVE COMPUTATIONAL SCHEMES FOR THE ANALYSIS OF FLUID STRUCTURE INTERACTION AND COMPLEX THREE-DIMENSIONAL INTERNAL FLOWS ARE TO BE DEVELOPED. NEW PETROV-GALERKIN FINITE ELEMENT METHODS FOR SOLVING THE NAVIER-STOKES EQUATIONS. COUPLED WITH THE EQUATIONS OF MOTION OF ELASTIC DUCTS AND MANIFOLDS, ARE TO BE DEVELOPED AND USED TO SIMULATE FLOWS IN AEROSPACE PROPULSION SYSTEMS (SUCH AS ...

ENTECH IS PLEASED TO PROPOSE TO NASA THE DEVELOPMENT OF AN INNOVATIVE CROSSED LENS GALLIUM ARSENIDE PHOTOVOLTAIC CONCENTRATOR, CAPABLE OF PROVIDING AN OPERATIONAL EFFICIENCYOF 22% IN THE SPACE ENVIRONMENT. THE PROPOSED SYSTEM WILL UTILIZE THREE STATE-OF-THE-ART DEVELOPMENTS: (I) A CYLINDRICAL LENS/FRESNEL LENS CROSSED-COUPLED OPTICAL CONCENTRATOR WHICH WILL PROVIDE 96% OPTICAL EFFICIENCY AT 100-20 ...

INCREASED EMPHASIS ON THE PROBLEMS ASSOCIATED WITH ING UNDERGROUND STORAGE TANKS AND UNDERGROUND POLLUTION IN GENERAL HAS CREATED A NEED FOR TECHNOLOGY TO REDUCE OR ELIM-INATE THE ASSOCIATED CONTAMINATION. TO DATE, PACKAGE AIR GENERAL HAS CREATED A NEED FOR TECHNOLOGY TO REDUCE OR ELIMINATE THE ASSOCIATED CONTAMINATION. TO DATE, PACKAGE AIR STRIPPING UNITS SEEM TO HAVE RECEIVED THE BROADEST AC- CE ...

"DARK FOCUS" IS DEFINED AS THE RESTING STATE OF VISUAL ACCOMMODATION YET TWO GENERAL MISCONCEPTIONS EXIST. FIRST, THAT THE RESTING POINT IS AT OPTICAL INFINITY, AND SECONDLY,THAT THE EYE ACCOMMODATES ACCURATELY. VISUAL PERFORMANCES REQUIRED IN SPACE ENTAIL CONTINUOUSLY CHANGING VIEWING DISTANCES AND TO ALLOW CREW MEMBERS TO PERFORM ROUTINELY ACCOMMODATION CHANGES NEED TO BE ASSESSED. WHEN A PERSON ...

LACK OF NON-GEOMETRIC KNOWLEDGE IS IDENTIFIED AS A FUNDAMENTAL FLAW OF THE MODELERS UPON WHICH MOST TRADITIONAL THREE-DIMENSIONAL COMPUTER-AIDED DESIGN (CAD) SYSTEMS ARE FOUNDED. A HYBRID REPRESENTATION SCHEME IS OUTLINED WHICH ADDS NON-GEOMETRIC SEMANTICS TO THE TRADITIONAL MODELING METHODS TO FORM A KNOWLEDGE BASE (K-BASE). THE K-BASE SYSTEM OUTLINED BORROWS CONCEPTS FROM ARTIFICIAL INTELLIGENCE ...

IONICS RESEARCH INC. (IRI) HAS DETERMINED THAT UNCOATED CAPILLARY COLUMNS CAN BE USED TO CONCENTRATE ORGANICS FROM WATER. THE METHOD IS EXCEEDINGLY SIMPLE AND RAPID (10 MINUTES PER 100 ML), YET EFFECTIVE. IRI PLANS TO INVESTIGATE THE POTENTIAL OF THIS TECHNIQUE FOR THE DEVELOPMENT OF AN INSTRUMENT SUITABLE FOR THA NALYSIS OF ORGANICS AT THE PART-PER-TRILLION LEVEL IN WATER AND WASTEWATER. SUCH AN ...

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