Award Data

Spatial and temporal variability of soil carbon stocks and soil environmental drivers that cause the production and flux of nitrous oxide (N2O) across agricultural systems create challenges for cost effective quantification of N2O emissions and soil carbon stock changes at scale. Technological innovations sensor technologies, remote sensing technologies, cost effective metagenomics sequencing and ...

Actionable understanding of subsurface processes is required by multiple small and medium size companies involved in environmental cleanup and subsurface energy production. Having actionable understanding means that stakeholders (1) can assess and evaluate the merits and risks of different operational strategies given certain initial conditions and (2) modify these strategies over time as a functi ...

The proposed low-SWaP PAPR technology improves the convenience, comfort, and protection level for respirators used in low-threat hazardous environments. Creare’s PAPR technology will be applicable to a variety of respiratory protection needs, including emergency escape, laboratory and field work in low-hazard conditions, and some combat and combat support activities. The PAPR will improve user f ...

75655S The photovoltaics (PV) industry is having difficulty finding enough raw materials to match its rapid growth. In addition, traditional sources of secondary grade polysilicon are no longer readily available at inexpensive prices. Reducing the cost of solar silicon wafers is the key to lowering the price of crystalline silicon solar cells. This project will develop a single-step wafer fabr ...

A need exists to develop cost effective and reliable submersible cage technology for exposed aquaculture. The team assembled as part of this SBIR incorporates JPS Industries, Great Bay Aquafarms and the University of New Hampshire. In Phase I, a design will be developed based on concepts known to work in the industry. Concepts to be investigated include a cage constructed around HDPE pipe, with ...

SIDE SCAN SONAR HAS DEVELOPED TO THE POINT WHERE IT IS NOW AN ACCEPTED PART OF HYDROGRAPHIC CHARTING PROJECTS, AS WELL AS A BROAD RANGE OF OCEAN SEARCH AND SURVEY APPLICATIONS. ONE LIMITATION ON ITS UTILITY, HOWEVER, IS THE REQUIREMENT TO OPERATE THE SYSTEM AT RELATIVELY LOW SPEEDS (5 KNOTS OR LOR LESS) IN ORDER TO ACQUIRE HIGH-QUALITY DATA. ANY INCREASEIN VESSEL SPEED CAPABILITY WOULD RESULT IN G ...

CRYOGENIC HELIUM REFRIGERATORS AND LIQUIFIERS CONVENTIONALLYEMPLOY OIL LUBRICATED POSITIVE DISPLACEMENT COMPRESSORS AT THE WARM END AND FREQUENTLY USE PISTON TYPE EXPANSION ENGINES AT THE COLD END. THESE SYSTEMS REQUIRE EXTENSIVE AND VIGILANT MAINTENANCE TO CONTROL CONTAMINATION FROM LUBRICATING OIL AND ITS VOLATILE COMPONENTS MIGRATING TO THE COLD END. HENCE THE NEED FOR LOW MAINTENANCE COMPRESSO ...

IN MOST CRYOGENIC SYSTEMS, THE PIPING JOINTS IN COLD REGIONSOF THE SYSTEM ARE MADE BY WELDING OR SOLDERING. THIS IS ESSENTIAL BECAUSE EXISTING DESIGNS OF CRYOGENIC PIPE SEALS CANNOT BE RELIED ON NOT TO LEAK. ANY SUCH LEAKS INTO THE COLD BOX REDUCE THE EFFECTIVENESS OF THE INSULATION, THEREBY REDUCING THE EFFICIENCY OF THE REFRIGERATOR. WELDEDJOINTS MAKE REPLACEMENT OF COMPONENTS DIFFICULT AND HAVE ...

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The current methodology for testing the penetration resistance of textile materials to various chemical agents has a number of drawbacks, including significant uncertainties in the resulting data, inefficiency and expense, risk to test personnel, and limited range of test conditions. The objective of the proposed work is to apply unique computer models for textiles with accompanying experimental ...