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A fluorescent coating is needed to alter emitted wavelength from UV LEDs. The goal of this project is to create a white light source with a uniform spectral output. Due to size and power constraints, LEDs are the preferred light source. To respond to this Tech Need, click here.

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NASA NEWS

According to a recent report based on some of the first observations by NASA's Mars Reconnaissance Orbiter, fluids that flowed through cracks penetrating underground rock on ancient Mars may have produced conditions to support possible habitats for microbial life.

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Tool for Ranking Research Options

Tool for Research Enhancement Decision Support (TREDS) is a computer program developed to assist managers in ranking options for research aboard the International Space Station (ISS). It could likely also be adapted to perform similar decision support functions in industrial and academic settings. TREDS provides a ranking of the options, based on a quantifiable assessment of all the relevant programmatic decision factors of benefit, cost, and risk. The computation of the benefit for each option is based on a figure of merit (FOM) for ISS research capacity that incorporates both quantitative and qualitative inputs. Qualitative inputs are gathered and partly quantified by use of the time-tested analytical hierarchical process and used to set weighting factors in the FOM corresponding to priorities determined by the cognizant decision maker(s). Then by use of algorithms developed specifically for this application, TREDS adjusts the projected benefit for each option on the basis of levels of technical implementation, cost, and schedule risk. Based partly on Excel spreadsheets, TREDS provides screens for entering cost, benefit, and risk information. Drop-down boxes are provided for entry of qualitative information. TREDS produces graphical output in multiple formats that can be tailored by users.

Posted in: Software, Briefs

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The Cutting Edge of High-Temperature Composites

NASA’s Ultra-Efficient Engine Technology (UEET) program was formed in 1999 at Glenn Research Center to manage an important national propulsion program for the Space Agency. The UEET program’s focus is on developing innovative technologies to enable intelligent, environmentally friendly, and clean-burning turbine engines capable of reducing harmful emissions while maintaining high performance and increasing reliability.

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Robust, Thin Optical Films for Extreme Environments

The environment of space presents scientists and engineers with the challenges of a harsh, unforgiving laboratory in which to conduct their scientific research. Solar astronomy and X-ray astronomy are two of the more challenging areas into which NASA scientists delve, as the optics for this high-tech work must be extremely sensitive and accurate, yet also be able to withstand the battering dished out by radiation, extreme temperature swings, and flying debris. Recent NASA work on this rugged equipment has led to the development of a strong, thin film for both space and laboratory use.

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Temperature Sensing for Oil, Gas, and Structural Analysis

With retirement of the space shuttle imminent, and the commercial space industry burgeoning, NASA is searching for safe and innovative methods for carrying payload and passengers to the Moon, Mars, and beyond. The search for new vehicles has been going on for some years now, with a variety of plans being pursued and countless technologies being developed.

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Cryogenic Cooling for Myriad Applications—A STAR Is Born!

Cryogenics, the science of generating extremely low temperatures, has wide applicability throughout NASA. The Agency employs cryogenics for rocket propulsion, high-pressure gas supply, breathable air in space, life support equipment, electricity, water, food preservation and packaging, medicine, imaging devices, and electronics. Cryogenic liquid oxygen and liquid hydrogen systems are also replacing solid rocket motor propulsion systems in most of the proposed launch systems—a reversion to old-style liquid propellants.

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