Award Data

The goal of this proposed study is to demonstrate the use of acid mine drainage (AMD) treatment sludge in the manufacture of Portland cement. Portland cement is composed of a mixture of calcium, silicon, aluminum, and iron oxides. When AMD is neutralized, sludge is precipitated that is composed largely of calcium, iron, and aluminum hydroxides. Disposal of this AMD treatment sludge ...

This Phase I SBIR project focuses on a technology that potentially reduces volatile metal mercury (Hg) emissions by approximately 95 percent from coal-fired utilities. Frontier GeoSciences, Inc., has discovered a method of removing Hg by chemically modifying scrubber water with a proprietary polymer (Frontier GeoSciences’ toxic metal chelating agent; FGS-MCX). Scrubber water naturally removes Hg ...

Lead in household paint and dust is a serious health hazard, as low-level lead exposure can result in a number of adverse health effects, especially in children. Onsite and real-time detection and quantification of lead in paint/dust are very important to homeowners and certified lead-based paint removal professionals. Toward this end, both field-portable equipment (such as X-ray fluorescenc ...

nLight proposes to develop high-power, high-efficiency laser diodes emitting at 1907nm. Performance is expected to improve from the current state-of-the-art technology at 15C of 20% electrical-to-optical (E/O) conversion efficiency and 11.5W continuous-wave power (CW) to 25% E/O efficiency and 18W of CW power at the conclusion of Phase I. At the conclusion of Phase II, these values are expected t ...

Most major accidents do not result simply from proximal, physical events, but from the gradual drift of an organization to a state of heightened risk. Risk often increases so gradually that no one notices, as safeguards and constraints are relaxed due to conflicting goals. When a mishap occurs, it is almost inevitable that some event will trigger an accident. A comprehensive risk analysis metho ...

Computer codes such as MCNPX now have the capability to transport most high energy particle types (34 particle types now supported in MCNPX) with energies extending into the teravolt energy range. The efficient use of these types of Monte Carlo tools is very important for modeling the effects of space radiation on humans, spacecraft and equipment. This proposal would develop a graphical user int ...

identified needs for the thermal control and ESD functions of the Prometheus Program's hardware for the heat rejection system for the planned nuclear system. These efforts can also serve uniquely the (CEV) radiator systems needs. The TCMS for the radiators of the both CEV and Prometheus missions need to operate at higher temperatures and provide the space environment stable low ratio of (αs/εT) ...

Tunable laser spectrometers are used by NASA for investigations of planetary atmospheric constituent gases. The availability of widely tunable long-wavelength (3 to 12?Ym) lasers operating at room temperature would allow such spectrometers to a wider range of gas species detection sensitivity increased by orders-of-magnitude relative to near-infrared lasers currently used in these applications. Ac ...

In Topic X1.03 NASA (JPL) is seeking to extend and implement long distance exploratory surface rover missions to gain knowledge of surface topology and roughness. The benefit is to identify suitable sites for future landings of human or robotic missions and to aid in pinpoint landings. High resolution millimeter wave radar sensors provide a low cost, reliable way for a Moon or Mars Rover to dete ...

In this SBIR Phase I project, Vega Wave Systems, Inc. will develop and demonstrate a novel InGaP-GaAs heterojunction bipolar transistor power amplifier for long-range X-band communications. The Phase I objective is to design and fabricate a new type of heterojunction bipolar transistor in order to achieve high device performance for power amplifiers (PAs). In addition, monolithic power combiners ...