Abstract:… TIMED TOKEN ROTATION PROTOCOL. SYNCHRONOUS AND MULTI-PRIORITY ASYNCHRONOUS MESSAGE CLASSES ARE CONSIDERED, UNDER A MULTITUDE OF TRAFFIC AND SYSTEM CONFIGURATION CONDITIONS. PURE ANALYTICAL AND JOINT ANALYTIC/NUMBERIC APPROACHES ARE DEVELOPED. A DETAILED SIMULATION … more
Abstract:REPROCESSING FACILITIES ARE COMPLEX CHEMICAL AND MECHANICAL FACILITIES COMPRISING MANY WORKSTATIONS THAT MUST INTERACT WITH EACH OTHER. SIMULATION MODELING IS A USEFUL TOOL FOR PREDICTING HOW WELL WORKSTATIONS PERFORM TOGETHER TO ACHIEVEA FACILITY'S DEFINED… more
Abstract:RECENT ADVANCES IN THE AREA OF SIMULATION MODELING HAVE FOCUSED ON IMPROVING SIMULATION MODELING LANGUAGES. THESE ADVANCES HAVE ADDRESSED THE SEMANTIC GAP BETWEEN SIMULATION MODEL DESIGN AND AN EXECUTABLE SIMULATION… more
Abstract:… PLANNING. THE INFORMATION STRUCTURE WILL INCLUDE PROCESS, TASK, DYNAMIC CREW PEFORMANCE, OPERATOR GRAPHIC AND HUMAN FACTORS PARAMETERS, AND TRAINING REQUIREMENTS. EXISTING AUTOMATED TOOLS SUCH AS THE IDEFO STRUCTURED AMALYSIS METHODOLOGY, THE SAINT TASK NETWORK SIMULATION … more
Abstract:A VARIETY OF OBJECTS ARE TRACKED ON ARMY TEST RANGES, INCLUDING: SLOW-MOVING GROUND VEHICLES, HIGH PERFORMANCE AIRCRAFT, MISSILES, CANNON BULLETS, ORBITAL VEHICLES AND AIRBORNE DEBRIS. VIDEO AND RADAR SENSOR SYSTEMS SUPPORT TRACKING. ACCURATE, REAL TIME TRACKING IS CRITICAL IN SUPPORTING RANGE… more
Abstract:A MICROCOMPUTER-IMPLEMENTED RESOURCE ALLOCATION SYSTEM WILL BE DEVELOPED AND FIELD-TESTED ON A PILOT BASIS IN ONE STATE AND IN A QUASI-PUBLIC HEALTH CARE CORPORATION. THE SYSTEM WILL CONSIST OF OPTIMIZATION AND SIMULATION MODELS, AN OPERATION MANUAL, TRAINING… more
Abstract:… WILL BE DEVELOPED FOR PARAMETER UNCERTAINTY AND UNMODELED DYNAMICS. ON-BOARD ROBUST CONTROLDESIGN METHODS, CAPABLE OF HANDLING PARAMETER UNCERTAINTY AND UNMODELED DYNAMICS, WILL ALSO BE STUDIED. THE PROPOSED ADAPTIVE SCHEME WILL BE TESTED ON A SIMULATION … more
Abstract:ACCURATE SIMULATION OF PRESENT AND PROJECTED CVD PROCESSES IN CLOSED AND OPEN SYSTEMS REQUIRES SOLUTION OF TIME-DEPENDENT TRANSPORT EQUATIONS WITH GASEOUS AND SURFACE CHEMICAL REACTION RATES. PRESENT CVD MODELS ADDRESS A SUBSET OF ISSUES OF CONCERN TO VAPOR GROWTH PROCESSES AND MAINLY FOCUS ON… more
Abstract:THE OBJECTIVE OF THE PHASE I RESEARCH IS TO DETERMINE THE TECHNICAL FEASIBILITY OF THE DEVELOPMENT OF A LONG RANGE RADIOACTIVE PLUME TRANSPORT MODEL/CODE FOR THE NRC. THIS CODE WOULD BE USED TO SIMULATE THE MOVEMENT, DISPERSION, DECAY, AND DEPOSITION OF RADIONUCLIDES RELEASED FROM SEVERE NUCLEAR… more
Abstract:EVALUATION OF THE EFFECTIVENESS OF DEFENSIVE AVIONICS SYSTEMS IS A COMPLEX PROCESS INVOLVING ASSIMULATION OF LITERALLY HUNDREDS OF TEST DATA ELEMENTS ASSOCIATED WITH THE SYSTEM UNDER TEST, ENGAGEMENT SCENARIOS, CONDITIONS, ASSOCIATE MULTI-SPECTUAL AVIONICS, WEAPOS, THREATS, TACTICS, ETC. EC… more
Abstract:… SIMULATION USING ADAPTIVE TIME WARP, AND A TECHNIQUE FOR DETERMINING SETS OF NETWORK PARAMETER VALUES WHICH MINIMIZE LAN RECONFIGURATION TIMES. SATISFYING TWO TECHNICAL OBJECTIVES WILL DEMONSTRATE THE TECHNICAL FEASIBILITY OF THE PROPOSED APPROACH: (1) DESIGNING A SIMULATION… more
Abstract:THE FEASIBILITY OF DEVELOPMENT OF A NEW LONG RANGE RADIOACTIVE PLUME TRANSPORT CODE IS PROPOSED. NEW APPROACHES TO ESTIMATE THE RADIOACTIVE DECAY, WET AND DRY DEPOSITION, PARTICULATE COAGULATION, AND ATMOSPHERIC PARAMETERS WILL BE EXPLORED AND A SIMPLE, IDEALIZED EVALUATION OF THESE ALGORITHMS WILL… more
Abstract:…CHNIQUE IS PROPOSED TO SIMULATE THE PERFORMANCE OF MULTIPLE-ACCESS COMMUNICATION SYSTEMS. A UNIQUE COMBINATION OF MONTE CARLO SIMULATION AND STATISTICALBOUNDING TECHNIQUES ARE USED TO INCREASE THE EFFICIENCY OF MULTIPLE-ACCESS MODELS. USE OF KNOWN STATISTICS IN THE SIMULATION… more
Abstract:…, OR TO RECONFIGURE FOLLOWING STATION OR CABLE FAILURE/DAMAGE. THIS RECONFIGURATION TIME IS CRITICAL IN REAL-TIME MILITARY APPLICATIONS AND IN INDUSTRIAL CONTROL APPLICATIONS. THE PHASE I PROPOSAL INVOLVES THE DEVELOPMENT OF AN EVENT-STEPPED COMPUTER SIMULATION … more
Abstract:…, SEVERE ALLERGIES AND RECENTLY AIDS, ALL INVOLVE THE IMMUNE SYSTEM AND WOULD BENEFIT FROM HAVING A DEFINED MODEL OF THE DISEASED STATE. TRANSPLANTATION OF CELLS AND TISSUES AND IMMUNOSUPPRESSIVE DRUG THERAPY BOTH WOULD GAIN A GIANT STEP FORWARD IF A SIMULATION … more
Abstract:…NIQUES ARE OFTEN NOT APPLIED OR ARE MISAPPLIED WHICH RESULTS IN SYSTEMS THAT DO NOT MEET THESPECIFIED PERFORMANCE CRITERIA OR MUST UNDERGO COSTLY REDESIGNS. AN INTEGRATED COMPUTER SYSTEM MODELING LANGUAGE OVERCOMES THE DEFICIENCIES OR TRADITIONAL ANALYTIC AND SIMULATION … more
Abstract:THE PROPOSED METHODOLOGY WOULD ALLOW ELECTRONIC WARFARE SIMULATION MODELS TO BE APPLIED MORE DIRECTLY TO EFFECTIVENESS STUDIES. DISPLAY DATA AND FORMATS COULD BE SELECTED TO MATCH THE PROBLEM UNDER INVESTIGATION AT THE USER'S DISCRETION. DISPLAY FORMS,… more
Abstract:… TASK 1. DEVELOP A MATHEMATICAL MODEL OF THE SUBMARINE PASSIVE SONAR SEARCH OPTIMIZATION PROBLEM. TASK 2. DERIVE A MATHEMATICAL PROGRAMMING ALGORITHM FOR A SPECIFIC CASE OF THE SONAR LINEUP PROBLEM, AND TASK 3.COMPARE THE RESULTS FROM TASK 2 WITH A SEARCH SIMULATION … more
Abstract:… A MECHANISM FOR INCLUDING HARD REAL-TIME CONSTRAINTS IN THE SOFTWARE DESIGN PHASE.THIS IS DONE BY INCORPORATING MODELS OF THE RESPECTIVE CRITICAL MECHANISMS (EXTERNAL TIMING PARAMETERS, INTERNAL EXECUTION DELAYS, ETC.) INTO AN EXISTING DESIGN AND SIMULATION … more
Abstract:… DATA THAT WILL INFLUENCE THE ALLOCATION DECISION, B) ACTUALLY MAKE THE DECISION CONCERNING AN OPTIMAL ALLOCATION BASED ON MISSION REQUIREMENTS AND ALLOCATION RULES, AND C) PROVIDE GUIDELINES ON THE STRONG AND WEAK POINTS OF ALTERNATIVE ALLOCATION STRATEGIES; AND 3. A … more
Abstract:…F PRINCIPAL EFFORT. DESIGN DETAILS SUCH AS THE MASS FRACTION REPRESENTED BY THE DEVICE AND A SUITABLE MATERIAL FOR THE ECCENTRIC MASS WILL BE PROPOSED. FOLLOW-ON WORK WOULD INCLUDE THE INCORPORATION OF THESE RESULTS IN A SIX DEGREE-OF-FREEDOM (6-DOF) FLIGHT/ ENGAGEMENT … more
Abstract:THIS EFFORT WILL DEVELOP A COMPUTER SIMULATION MODEL TO EVALUATE THE EFFECTIVENESS OF BOTH ON-BOARD AND OFF-BOARD AIRCRAFT SURVIVABILITY EQUIPMENT (ASE). THE MODEL FAMILY WILL INCLUDE GROUND BASED TARGET TRACKING RADAR AND AIRBORNE INTERCEPTOR RADAR MODELS,… more
Abstract:… CONVENTIONAL ANALYTIC REDUNDANCY METHODS, THE OBJECTIVE BEING TO OBTAIN IN REAL-TIME HIGHLY SENSITIVE AND COST-EFFECTIVE IDENTIFICATIONOF DEGRADATION IN POWERPLANT INSTRUMENTATION. THE RESEARCH WILL START WITH THE EXPERIENCE THAT IS AVAILABLE IN THE USE OF SIMULATION … more
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