Award Data

A novel chemical vapor deposition (CVD) based step-flow epitaxy process is proposed for controllable growth of SiC nanowires with high polytype integrity. SiC nanowires will be grown in a modified commercial high-temperature CVD reactor, used by industry for growing high-quality SiC epitaxial thin films. Different polytypes of SiC nanowires will be grown by choosing appropriate substrate materials ...

In our Phase I test, Green Eyes successfully demonstrated the feasibility of a Coastal Long-Term Automated Self-Calibrating Profiler (CLASP) system capable of autonomous operation for one year. The feasibility prototype also incorporated two-way telemetry and near real-time display of processed data. CLASP uses a profiling pump to deliver water to a flow-through multi probe sensor and additional ...

Modern supercontinuum (SC) light sources are generated by non-linear interactions between ultrashort pulse lasers and optical fibers. Output in near-ultraviolet to near-infrared wavelength ranges has been demonstrated. These light sources have high brightness and are spatially coherent. Recently, output to 4.5 µm was achieved using fluoride glass fibers; optical absorption by the fiber prevents l ...

Identification of particular fish species based on specific DNA sequences is not currently time or cost effective, but morphological identification is not always possible during early development stages. The project proposed seeks to develop a microfluidic based approach using DNA hybridization, coupled with a sensitive detection method based on the use of carbon nanotubes to rapidly identify fis ...

Southwest Sciences proposes development of residential fire sensing systems based on low cost optical imaging sensors combined with newly introduced highly miniaturized, low power CO sensors. Sensor modules will also include temperature sensors. The modules will be part of a low power wireless network. Each module will be about ½ the size of a business card, a few mm thick, and will operate for ...

A key factor of international efforts to identify and suppress the supply of and demand for nuclear materials, and thereby to deter potential traffickers, is the ability to accurately identify contradicted material and ultimately to trace it back to its origin. Alpha particle spectroscopy is widely used in nuclear forensics to assay trace quantities of sensitive nuclear materials, but the limited ...

The condition of dredged channels in U.S. waterways is ever-changing due to sedimentation, shoaling, and the growing presence of submerged debris. Furthermore, the lack of the most current and accurate subsurface terrain data (specifically, channel depth as a function of position) at the time of a ship¿s transit introduces a level of uncertainty that prevents optimal safety and navigational ef ...

If aquaculture is to become an increasing contributor to the food supply, it is critical that aquaculture feeds become less reliant on marine-derived fishmeal and fish oil as the preferred source of essential proteins and lipids. Not only is the wild fishery from which these products are extracted at maximum sustainable levels of harvest, but also there is increasing concern that these feedstocks ...

Arete will develop a non-fouling, robust, monolithic, sensor package that will yield accurate salinity calculations from temperature and conductivity measurements. The sensor comprises a unique conductivity cell, a thick-film thermistor, and an embedded ultrasonic cleaning device used to remove all incipient detritus from the sensor head. The temperature and conductivity measurements will be pro ...

Luna Innovations proposes to develop for NIST a low-cost, yet high resolution acoustic sensor system capable of determining micro-degree changes in a water path caused by clinical medical radiation devices. The sensors are external to the water and play a negligible role in thermal transfer in contrast to current thermocouple devices in use today. An exciting element in this proposal is APPLES' ab ...