Tech Exchange

Lossy Compression Technique Varies Data Quality in Response to Bandwidth or Time

Looking at ways to encode an image as a file, one byte in the file contributes information to one pixel (PPM files) or a small group of pixels (GIF, JPEG). In other image technologies such as wavelets, certain bytes contribute much more information than others. Lossy compression technique can vary data quality in response to bandwidth or time. Using this technology, data is encoded so that every byte in the file contributes a little information to all the pixels in the image. If a group of bytes is missing, an image can still be reconstructed from the remaining bytes. The technology represents content as projections of highdimensional polygonal lines on smaller subspaces. The content can be reconstructed regardless of the order of the projections. Moreover, an approximation of the content can be reconstructed with a partial subset of projections. Get the complete report on this technology at: www.techbriefs.com/tow/200902a.html Email: nasatech@yet2.com Phone: 781-972-0600

Posted in: Techs for License

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Emissions Control System Provides up to 100% Removal

This emissions control system effectively reduces up to 100% of hydrocarbons (HC), carbon monoxide (CO), and nitrogen oxides (NOx) from fossil fuel combustion engines. It is suitable for gasoline, natural gas, propane, syngas, and diesel engines. The Emission Reduction System technology is recyclable and does not create additional toxic emissions. It is made from low carbon steel or stainless steel. The system features direct bolt-on replacement of original manufacturer equipment for most makes and models, and can reach operating efficiency within 9 seconds of engine startup. It is available with a silencer, and features high sound attenuation. For automotive applications, it improves operator and passenger safety by removing CO, NOx, and HC before they can enter the cabin. High flow capacity prevents back pressure to maintain maximum horsepower. The system allows for virtually pollution-free idling when idling is necessary. Get the complete report on this technology at: www.techbriefs.com/tow/200902b.html Email: nasatech@yet2.com Phone: 781-972-0600

Posted in: Techs for License

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Technology for Improved Performance of Release Agents in Die Casting

A materials company supplying specialty technical products to the foundry industry is seeking technology to allow a stepchange in performance of release agents/die lubricants for high-pressure die casting of non-ferrous (e.g. aluminium) components. Areas of interest include products that can be applied at a higher temperature to allow faster casting cycles, products that protect the die from damage caused by repeated heating and cooling cycles, and powder-based agents, and products that adhere quickly to steel. Respond to this TechNeed at: Email: nasatech@yet2.com Phone: 781-972-0600

Posted in: NASA Tech Needs

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In-Store Hair Analysis Tools

A company is seeking tools and devices that can be used instore to quickly classify hair types based on measured hair properties like hair thickness and/or damage level. Technologies include hair diagnostic devices/tools that can evaluate at least one of the following parameters: structure information; physical properties such as amount of curl, tensile strength, and stiffness; and cosmetic properties such as smoothness, friction, and resistance to frizz. Tools must be easy to use in-store, and results must be sensitive enough to differentiate between ranges of hair types. Respond to this TechNeed at: Email: nasatech@yet2.com Phone: 781-972-0600

Posted in: NASA Tech Needs

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Single-Layer Electrochromic Polymer Technology for Automotive and Architectural Glazing Light Control

DuPont’s electrochromatic (EC) technology for controllable light transmission in automotive and architectural safety glazing applications is based on an organic polymer film that can function as a controllable EC interlayer. This technology addresses the need for reducing the complexity of current EC technologies and can be used in rigid and flexible forms, large sizes, and curved shapes. It has applications in dynamic electrochromic glazing systems that undergo a reversible change in color from light to dark by application of a very low voltage. Target markets in automotive include sunroofs, mirrors, instrument clusters, windshield shadebands, sidelights, and backlights. The technology works either in transmissive or reflective mode. Transmissive EC devices are made with indium tin oxide electrodes that are fully transparent in the visible spectral range. All of the components of the electronic control systems are commercially available. Get the complete report on this technology at: Email: nasatech@yet2.com Phone: 781-972-0600

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Tool-Free Engineered Composite Thermoforming Technology

Tooless Engineered Composite (TEC) is a patent-pending process that incorporates the benefits of a thermoformed plastic composite product and the strength of fiberglass reinforcement. This tool-free process utilizes the thermoformed shell as the tool surface in a closed mold process. The result is an extremely durable product with superior finish quality. The product has low to no emissions and uses soy and corn resin. The TEC process utilizes a multi-layer thermoformed shell producing products with a class “A” finish. Utilizing a multi-layer thermoformed shell eliminates painting, which reduces cost and produces low or no emissions. This multi-layer shell has a layer of acrylic that may be sanded and buffed if needed. The thermoformed shell allows for the use of various materials, finishes, colors, textures, and decorative patterns that may be utilized in different applications. Get the complete report on this technology at: Email: nasatech@yet2.com Phone: 781-972-0600

Posted in: Techs for License

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Large Aperture Inflatable/Deployable Antennas and Their Role in NASA’s Vision for Space Exploration and Earth Science

As NASA evolves its vision for space exploration and Earth science, greater demands are placed on advanced communications and sensing systems to allow for higher data-rate communications from the Moon, Mars, and beyond, as well as for more precise Earth and planetary remote sensing activities. Taking into consideration the cost of launching hardware into space (about $20K per kg), as well as the fairings’ volume limitations, there is need for novel antenna technology concepts to circumvent these limitations, without jeopardizing the desired capabilities. To address this scenario, NASA is investigating the development of large aperture, inflatable/deployable antenna (IDA) technologies as a viable option to fulfill the aforementioned requirements. Attainment of these requirements demands overcoming a series of critical challenges as discussed below.

Posted in: NASA Tech Needs

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