Award Data

The primary objective for the proposed effort is to develop innovative fast-running models (FRMs) that are based on data generated by High-Fidelity Physics-Based (HFPB) models; these FRMs are to predict the damage, responses, and subsequent residual strength of walls and slabs composed of UHPC or HPC materials of the kind that would be used in hardened bunkers. Of particular interest is to create ...

Presently, commercial and government radiation test facilities do not have convenient, reliable calibration systems for routine, day-in, day-out checks on x-ray and neutron detectors or their filter arrays. Lack of such calibration systems compromises the quality of the testing, and leads to wasted time and manpower resources used to resolve the ensuing uncertainties. We are developing a compact, ...

A variety of approaches ranging from first principles computations to simplified methods have been proposed for design and evaluation of structural framing systems pertaining to their resistance to progressive collapse, especially as a consequence of terrorist attacks. Both threat-related and threat independent methods have been proposed; these methods contains both performance and prescriptive c ...

We propose to develop a battery powered portable monitoring system capable of collecting and analyzing gamma spectra for specific radionuclides in the field. The system will consist of a high resolution cadmium telluride array detector and a small multichannel analyzer and data logger. The proposed monitoring system builds upon the design of the Ludlum Model 2350 Data Logger which is quite rugge ...

One of the Operation Directorate's top ten challenges is the development of handheld gas chromatography (GC) instrumentation for CW treaty verification. Toward this challenge, DNA has recently developed and reduced to practice innovative new technologies for low power, fast GC. An unsolved technical issue which still remains with small, portable GC devices is how to conduct fast and automated va ...

Power electronic and pulse power applications for land based and airborne systems require capacitors with increasingly higher energy and power density that can withstand higher operating and process tempertures. Electrochemical double layer and metal oxide capacitors can satisfy many of the energy density speccifications but due to high ESRs their power density is 100-1000 times lowe than require ...