Award Data

AT MULTI-UNIT NUCLEAR GENRATING STATIONS, CONTROL ROOM OPERATORS ARE GENERALLY LICENSED TO OPERATE ALL SIMILAR UNITS. SIMULATOR TRAINING CONDUCTED AT THE LICENSEE TRAINING FACILITY OCCURS ON ONE SIMULATOR WHICH MAY NOT EXACTLY MIMIC ANY UNIT. INADEQUATE TRAINING ON UNIT-TO-UNIT AND UNIT-TO-SIMULATOR DIFFERENCES, IN CONJUNCTION WITH LIMITED PER-PERSON SIMULATOR TRAINING HOURS, CAN RESULT IN INCREAS ...

WHEN ROTATING MACHINERY DETERIORATES, VIBRTION PATTERSN CHANGE. WHEN BEARING FREQUENCIES APPEAR, THEN INCREASE IN AMPLITUDE, BEARING FAILURE LOOMS. THE SAME WITH VALVES; WHEN THEY LEAK, THEY VIBRATE. AS LEAKAGE INCREASES, THE VIBRATION PATTERN CHANGES. THERE ARE MANY OTHERS. THE KEY IS KNOWING WHERE AND HOW DEEPLY TO LOOK. THE KEY IN OLDER REACTOR PLANTS IS TO UNOBTRUSIVELY, ECONOMICALLY BACKFIT S ...

CHANGES IN PLANT STATUS, EITHER BEFORE OR DURING AN ACCIDENT SEQUENC CAN CONSIDERABLY AFFECT ITS OUTCOME; BOTH THE ACTURAL OUTCOME AND THAT PREDICTED BY PROBABILISTIC RISK ASSESSMENT. IN ORDER TO ACCURATELY REPRESENT THE POSSIBLE ACCIDENTS AND THEIR PROBABILITIES, THE PRA MODEL MUST CONSIDER THE DYNAMIC CHARACTER OF THE PLANT, IT'S SYSTEMS AND OPERATORS. A LIVING, DYNAMIC PRA IS ONE IN WHICH ALL T ...

Survival of present day microelectronic circuits depends on their protection from self generated and external electromagnetic interference. This proposal is oriented toward the class of interference generally referred to as overvoltage transients. Means for mitigating these transients include gas discharge tubes, and various solid state devices. Each of these has their own advantages in particu ...

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The Ktech Team proposes a feasibility study of a fuel/air driven flux compression power unit (FCPU) for electric guns. Through variations of inductance gradients and through changes in scale, the proposed technology will be applicable to both electrothermal/chemical and electromagnetic guns. In the Phase 1 effort, we develop simulation models to predict the performance of the flux compression po ...

THE DEFENSE NUCLEAR AGENCY (DNA) IS DEVELOPING THE OPERATIONAL MESOSCALE ENVIRONMENT MODEL WITH GRID ADAPTIVITY (OMEGA) TO PREDICT REAL-TIME DISPERSAL OF HAZARDOUS AEROSOLS. ONE REQUIREMENT FOR OMEGA OR ANY SIMILAR MODEL IS TO PREDICT COLLATERAL EFFECTS FROM STRIKES ON NUCLEAR, BIOLOGICAL, AND CHEMICAL (NBC) FACILITIES. THE OBJECTIVE OF THE PROPOSED PHASE I PROGRAM IS TO DETERMINE THE ESSENTIAL FE ...

The Defense Nuclear Agency hase undertaken several related programs to develop new technologies for countering the proliferation of weapons of mass destruction, including weapons which disperse dry spore biological agents. These initiatives require an increased understanding of the response o fthese agents and their surrogates to the environments generated by various weapons, including penetratin ...