Abstract:Many long term wheelchair users develop back pain or spinal and pelvic deformities, which are in part due to the rounded spinal posture promoted by the sling upholstery in the standard wheelchair. Two back support systems which connect to the vertical upright frame members of a standard wheelchair… more
Abstract:This project addresses the need for information systems for children and adults with disabilities. People with mobility and visual impairments. For example, wheelchair users desire to experience outdoor trails just as much as everyone else. Existing definitions of accessibility for building access… more
Abstract:BioTechnical Communications is proposing to develop a prototype for healthcare programming targeted to African-Americans, and to broadcast on Black Entertainment Television (BET), a targeted cable television network. BioTechnical Communications will be responsible for the accuracy of the technical… more
Abstract:THE LAST THREE YEARS HAVE SEEN A DRAMATIC INCREASE IN THE NUMBER OF COMPANIES PROCESSING POST-CONSUMER PLASTICS FROM PRODUCTS SUCH AS SOFT DRINK CONTAINERS, DETERGENT BOTTLES, MILK JUGS AND WATER BOTTLES. WHILE THIS HAS TO SOME EXTENT DIVERTED THESE MATERIALS FROM LANDFILLS, IT HAS CAUSED AN… more
Abstract:DIVERSION OF PLASTICS FROM LANDFILL TO RECYCLING CAN POTENTIALLY SAVE THE ENERGY EQUIVALENT OF 60 MILLION BARRELS OF OIL ANNUALLY AND REDUCE LANDFILL VOLUME REQUIRMENTS BY UP TO 20%. THE U.S. ENVIRONMENTAL PROTECTION AGENCY HAS RECOMMENDED THAT SOURCE REDUCTION, RECYCLING, VOLUME REDUCTION, AND… more
Abstract:EACH YEAR, AMERICANS DISPOSE OF AN ESTIMATED 29 BILLION POUNDS OF PLASTICS WHICH CONSUME UP TO 20% OF OUR NATION'S ANNUAL LANDFILL CAPACITY. RECENT ENVIRONMENTAL AND POLITICAL PRESSURES HAVE LED TO RAPID ESTABLISHMENT OF PLASTICS RECYCLING FACILITIES. LIMITED MARKETS FOR LOW QUALITY RECYCLED RESINS… more
Abstract:CURRENTLY, NO SINGLE MATERIAL SATISFIES ALL THE DESIGN REQUIREMENTS FOR PLASMA FACING COMPONENTS IN MAGNETIC FUSION DEVICES. THEREFORE COMPLEX DESIGNS HAVE BEEN PROPOSED AND TESTED, BUT OPERATION OF THE DEVICES IS STILL LIMITED. INNOVATIVE TECHNIQUES ARE PLANNED IN THIS PROJECT TO FABRICATE… more
Abstract:The goal of this research is to develop critical reagents that will support the production of highvector titers for transfusion medicine, ie. hematopoietic gene therapy for treatment of blood disordersas well as other applications. Attempts at concentrating these vectors has generally resulted in… more
Abstract:The development of hematopoietic defined protein-free reagents that support megakaryocyteformation will be of inestimatable importance. The rationale for developing such reagents is that it willallow the measurement of drug toxicity in its unbound state in which all of the drug is active.… more
Abstract:The overall goal is to develop serum-free medium for the proliferation and differentiation of fetal liver, spleen and bone marrow. The culture system will be comprised of serum-free medium and various cytokines. Serum-free medium will allow the direct effect the cytokines have on the fetal… more
Abstract:Southwest Sciences proposes the development of a diode-laser-based hygrometer for atmospheric studies. The instrument dynamic range will span dew (frost) points of +40Â¿ C down to -90Â¿ C and will be suitable for in situ measurements throughout the troposphere and tropopause. Response times will… more
Abstract:THE HYDROXYL RADICAL (OH) PLAYS A KEY ROLE IN THE PHOTOCHEMISTRY OF BOTH THE TROPOSPHERE AND THE STRATOSPHERE. IT IS THE PRIMARY OXIDIZING AGENT RESPONSIBLE FOR THE REMOVAL OF MOST TRACE GASES INCLUDING CO AND CH4. SINCE THE OH RADICAL DETERMINES THE LIFETIMES AND, THUS, THE CONCENTRATIONS OF MANY… more
Abstract:ULTRAFAST LASERS (LASERS THAT GENERATE PULSES WITH DURATIONS OF ~10 PICOSECONDS OR LESS) HAVE A LARGE NUMBER OF APPLICATIONS IN BIOCHEMISTRY, CHEMISTRY, PHYSICS, AND ELECTRICAL ENGINEERING. UNFORTUNATELY, THESE SYSTEMS ARE DIFFICULT TO USE LARGELY BECAUSE ULTRAFAST LASER PULSES ARE EXTREMELY… more
Abstract:Pseudomorphic InGaAs with high InAs concentrations on GaAs substrates are currently in use in complementary-heterostructure FET (C-HFET) digital and MODFET MMW circuits. While their bandgaps enable them to detect 1300 and 1550 nm light, the projected detection efficiency (responsivity) is very low… more
Abstract:A promising new approach for high power solid-state sources will be demonstrated using spatial power combining grids. Present development of high power field effect transistor (FET) based solid-state sources at millimeter-wave frequencies is hampered by the limited power output of individual sources… more
Abstract:An epitaxial grown Germanium - channel Junction Field Effect Transistor (Ge-JFET) is proposed to provide the most efficient, low noise cryogenically cooled detectors operating at 2 - 4Â¿K. Precisioned engineered lattice and doping epitaxial growth will eliminate material defects to allow the… more
Abstract:To meet the future needs for increased capabilities in military as well as commercial space communications and radar applications, the W-Band (94 Ghz) frequency spectrum utilized. A critical issue has arisen in the development of the future W-band electronic systems technology: while InP-based… more
Abstract:THE FEASIBILITY OF A SIMPLE ATMOSPHERIC CARBON DIOXIDE (CO2) SENSOR FOR OCEANOGRAPHIC DEPLOYMENT WILL BE EXPLORED IN THIS PHASE I PROJECT. THREE BASIC STEPS ARE REQUIRED FOR SENSOR OPERATION: MEMBRANE EQUILIBRATION OF GASEOUS AND AQUEOUS CO2, CHEMICAL AMPLIFICATION OF THE CONCENTRATION OF THE… more
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