Award Data

ELECTRON BOMBARDED SEMICONDUCTOR (EBS) GAIN DEVICES USING SILICON DIODES HAVE APPLICATIONS IN FREQUENCY AGILE, RADIO FREQUENCY (RF)/MICROWAVE POWER AMPLIFIERS, PHOTOMULTIPLIERS,IMAGING TUBES, AND HIGH SPEED SIGNAL PROCESSORS SUCH AS ANALOG-TO-DIGITAL CONVERTERS. HOWEVER, COMMERCIAL ACCEPTANCE OF THESE DEVICES HAS BEEN LIMITED IN THE PAST BECAUSE OF THE DIFFICULTIES IN PROCESSING THE SILICON DIODES ...

THIS PROPOSAL WILL APPLY FOURIER TRANSFORM INFRARED (FT-IR) SPECTROSCOPY AS AN IN-SITU DIAGNOSTIC FOR THE DEPOSITION OF AMORPHOUS HYDROGENATED SILICON (A-SI:H). SUCCESSFUL PLASMA DEPOSITION OF A-SI:H ON A COMMERCIAL SCALE WILL REQUIRE SIMULTANEOUS KNOWLEDGE OF MANY PROCESS VARIABLES WITHIN THE PLASMA REACTOR. THESE VARIABLES INCLUDE 1) FILM THICKNESS, COMPOSITION (INCLUDING DOPING LEVEL), AND INDE ...

THE OBJECTIVE OF THIS PROJECT IS TO PROVIDE THE OIL WELL LOGGING INDUSTRY WITH AN INEXPENSIVE, HIGH SPEED MUD-PULSE TELEMETRY SYSTEM. THE ABILITY TO GET REAL-TIME DATA FROM THE BOTTOM OF A BOREHOLE WHILE DRILLING EXPLORATORY, DIRECTIONAL, AND HORIZONTAL HOLES FOR OIL AND GEOTHERMAL WELLS AND CORING ALLOWS DRILLERS TO DRILL FASTER. ADDITIONALLY, THE ABILITY TO GET REAL-TIME DATA ALLOWS DRILLERS TO ...

IN THE LAST SIX OR SEVEN YEARS, VERY SIGNIFICANT INCREASES HAVE BEEN ACHIEVED IN THE CRITICAL CURRENT DENSITIES (JCS) IN BOTH MONOFILAMENTARY AND MULTIFILAMENTARY NIOBIUM (NB)-46.5 WT.% TITANIUM (TI). SEVERAL QUESTIONS ARE FREQUENTLY RAISED THAT REMAIN UNANSWERED. THESE QUESTIONS INCLUDE THE FOLLOWING: (1) HOW CLOSE TO THE THEORETICAL JC PREDICTED BY PINNING THEORY CAN BE ACHIEVED IN PRACTICE IN M ...

RECENTLY, THE SUCCESSFUL DEVELOPMENT OF A (NBTA)3SN (NIOBIUM-TANTALUM-TIN) MATERIAL HAS BEEN CONFIRMED BY DEMONSTRATING ITS USE IN A 20.4 T MODEL MAGNET FOR A 900 MHZ SPECTROMETER. THE MATERIAL WAS PRODUCED IN LONG PIECELENGTHS. A SIMILAR CONDUCTOR DESIGN THAT USED (NBTI)3SN (NIOBIUM-TITANIUM-TIN) WAS DEVELOPED FOR THE LAWRENCE LIVERMORE LABORATORY FOR USE IN THEIR POP COIL PROGRAM. THIS CONDUCTOR ...

A NEED EXISTS TO MONITOR VIBRATION IN HIGHWAY BRIDGES. IT IS DESIRABLE TO MONITOR MANY POINTS ON THE BRIDGE. THE CURRENT PROBLEM IS THAT SENSORS MUST BE WIRED TO A CENTRAL LOCATION. WIRE IS DIFFICULT TO INSTALL AND TO MOVE. THE SOLUTION IS TO COLLECT SENSOR DATA BY RADIO. A SYSTEM EXISTS THAT ELIMINATES WIRE. IT GATHERS SENSOR DATA TO A CENTRAL LOCATION BY RADIO. THE SYSTEM'S UNIQUE FEATURE IS THA ...

A MAJOR LIMITATION IN CURRENT LARGE SCALE GENOME MAPPING METHODOLOGY IS THAT FEW TOOLS EXIST FOR GENERATING SPECIFIC DNA FRAGMENTS IN THE MEGABASE SIZE RANGE. THIS PHASE I RESEARCH IS EXAMINING THE FEASIBILITY OF DEVELOPING A FAMILYOF INTRON-ENCODED SITE-SPECIFIC ENDONUCLEASES CAPABLE OF GENERATING DNA FRAGMENTS 2 TO 100 MEGABASES IN SIZE BY USINGTHE FOLLOWING STEPS: (1) DEVELOP METHODS FOR EXPRES ...