Award Data

THE U.S. ARMY HAS A NEED FOR A LIGHTWEIGHT, STRONG, MOBILE BRIDGE. ONE PROBLEM THAT LIMITS THE PERFORMANCE IS THE DESIGN OF ADHESIVE JOINTS. THIS PROJECT IS TO DEVELOP SEVERAL OPTIMUM JOINT DESIGNS SO THAT THE LOADS ON JOINTS OF EITHER TUBULAR AND FLAT COMPONENTS ARE IN SHEAR, AND THE STRESS CONCENTRATIONS ARE REDUCED. THE PROPOSED PROGRAM IS TO USE THE RESEARCH WE HAVE ACCOMPLISHED IN EXPERT SYST ...

MODERN HF/VHF JAMMERS EMPLOY POWER COMBINERS AND MULTIPLE POWER-AMPLIFIER (PA) MODULES TO ACHIEVE A HIGH POWER OUTPUT, CANCELLATION OF HARMONICS, AND GRADUAL DEGRADATION OF PERFORMANCE DUE TO MODULE FAILURE. POWER COMBINERS CAN BE A SIGNIFICANT SOURCE OF POWER LOSS BECAUSE OF RESISTIVE LOSSES, MISMATCH (AMPLITUDE/ PHASE) OF PA OUTPUTS, AND PA INEFFICIENCY DUE TO NONNOMINAL LOAD. CURRENTAND VOLTAGE ...

The above ground penetrating radar systems for close-up surveying of terrain are inadequate for the detection of frozen or thawed soil layers (which is important for mobility determination) and for locating near surface buried objects such as pipes, wastecontainers, mines, or unexploded ordnance. Current antenna systems are not capable of providing a small spot size at a useful frequency. Antenn ...

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3-D BRAIDED PREFORMS SHOULD INCREASE MECHANICAL PROPERTIES OF CERAMIC COMPOSITES IN ALL DIRECTIONS; ITS INTERLOCKING FIBER ARCHITECTURE SHOULD BE EFFECTIVE IN ARRESTING CRACKS, AND REMOVING CATASTROPIC FAILURE. THIS PROJECT ADDRESSES THE ISUES OF MERGING AN EFFECTIVE REINFORCEMENT SYSTEM WITH AN INEXPENSIVE CERAMIC MATRIX PROCESSING TECHNOLOGY TO DISCOVER A LOW COST MANUFACTURING ROUTE TO HIGH PER ...

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This proposal encompasses a facile method for generating transgenic chickens. Traditionally, the approach to accomplish this has been to target the avian egg or embryo for gene insertion using either viral or 'standard' plasmids as vectors. In contrast,our proposed method introduces two new features, i.e. (1) novel transposon DNA vectors and (2) injection of DNA into the testes of immature males. ...