Tech Exchange

Laser Drilling of Ceramic Composites to Form Smooth-Walled Holes

Attempts to mechanically drill high-temperature ceramic components can doom them to failure. Even laser drilling can compromise the surface oxidation layer that protects the composite part in high- temperature service.

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Making Metal Packaging Lighter

Because of increasing cost pressures on high-volume metal packaging, a manufacturer needs to make each unit weight of metal (steel and aluminum) go further. Technologies are sought that make metal packaging lighter and enhance the physical performance (like tensile strength, stiffness, etc). This could include, for example, improvements brought about by “dimpling” the metal surface and other macro surface modifications.

Posted in: NASA Tech Needs

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Solar-Based Hydrogen Generation Technology

A company seeks to increase the efficiency of solar-based hydrogen generation systems by device technologies that can help to develop a new module with at least 16% solar energy utilization efficiency. Examples include the Z-scheme method and tandem type, which has achieved a Solar Energy Utilization Efficiency of 4.5% and 12.4%, respectively. Of particular interest are research organizations such as universities, and venture organizations that work jointly with them.

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Precision Feedback-Controlled Laser Drilling for Fluid Flow Apertures

This technology provides a method of laserdrilling any component under the control of real-time feedback to provide for predictable, calibrated fluid flow through one or an array of holes formed in the component. The technique can improve flow control through a machined part by an order of magnitude or more over conventional open-loop laser drilling technologies, increasing the predicted lifetime of component parts. The method can be applied to any component or device that requires controlled flow of any fluid.

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Diagnostic Pattern Recognition Using Mid-IR Spectroscopy

By applying mid-infrared spectroscopy to bodily fluids, this suite of technologies offers the potential for quick, accurate, and inexpensive diagnostic support for a variety of diseases in humans or animals. Every disease or condition results in quantitative imbalances in the “normally occurring” molecules of the body — raised glucose or cholesterol, for example. Pathogens like bacteria and viruses contribute their own molecular loads as well as destabilizing the body’s “homeostasis;” its usual stable and healthy condition. A spectrographic “snapshot” of sample fluids from blood serum, lymph, and saliva can be matched to the unique spectroscopic pattern of known conditions and diseases. Pattern recognition can then result in a quick diagnosis.

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Automated, In-Process Method for Surface Contamination Inspection of Panels

This patented surface contamination detection system enables accurate, automated, in-line inspection of metallic and composite panels prior to bonding, coating, painting, or welding operations. This technology is currently used for realtime, in-process panel inspection at a leading U.S. aircraft manufacturer, where detecting surface contamination before subsequent operations has resulted in lower scrap and rework cost, and improved customer satisfaction. The technology is transferable to any applications where surface contamination of metal or composite panels is undesirable, necessitating the need for in-process inspection. This method and apparatus incorporates infrared imaging technology and automated multiple cameras to enable accurate, reliable, and automated detection of contaminants on metallic and composite panels. This technology makes surface inspection feasible for high-throughput processing lines. Get the complete report on this technology at: www.techbriefs.com/techsearch/tow/200708b.html Email: nasatech@yet2.com Phone: 781-972-0600

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Mathematically Lossless Compression for Real-Time Medical Imaging

Qbit’s proprietary line of data compression software offers 100% mathematically lossless data reconstruction that ensures that every bit is reconstructed. It allows for an increase in digital throughput, workflow speed, and acts as an enabling technology for applications that require real-time digital content delivery, such as enabling real-time content delivery between a medical image acquisition system such as a 64-slice CT and the workstation system. The small software “footprint” of the Qbit codec also makes it suitable for use in memory-limited devices as well as chipembedded applications. It can natively handle any raster size, unlimited color planes, and floating-point formats. It is parallelized, so it may perform better than real-time if required. Get the complete report on this technology at: www.techbriefs.com/techsearch/tow/200708a.html Email: nasatech@yet2.com Phone: 781-972-0600

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