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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Foamed glass provides an inexpensive lightweight substrate for reflective elements used in solar energy converters. Material withstands temperature from -450 to 800 degrees Fahrenheit and pressures up to 100 psi.
Inexpensive composition with high energy-absorptivity and low emissivity requires no primers for adhesion to aluminum, copper, and stainless steel and uses commerically available materials.
Device, connecting outputs of all gas chromatographs to single, relatively inexpensive IR spectrometer, reduces costs of system. Storage unit provides buffer storage of samples until infrared spectrometer is ready to accept them. Storage unit can be used to separate overlapping peaks.
Device incorporates relatively inexpensive, simple hand-controlled tracker that moves over horizontal two-dimensional surface. Device is applicable as a two-dimensional or three-dimensional plotter to perform as X/Y curve plotter, area calculator under a randomly shaded curve, and displacement tracker.
Inexpensive storage and transfer system allows blood and other fluids to be added or removed without contamination. Device heat-sterilizes external surfaces of terminals and forms sterile passageway between terminals.
Ultrasonic generator/monitor, appropriate for lab and field use, is used to measure ultrasonic parameters and determine certain physical properties of test region. Reflection-oscillator ultrasonic spectrometer is sensitive, inexpensive, has no duty-cycle effects, is simple in construction and use, and for resonance measurements, takes advantage of sensitivity enhancement, and has high frequency stability.
Parts are easily and quickly positioned in welding vacuum chamber with use of inexpensive thin metal-foil plate.
Inexpensive nondestructive method ranks materials by crack toughness. Method can reduce expenses involved in conventional mechanical destructive testing and can be inspection tool in determining local variations of materials in fracture-prone components.
Inexpensive, easily-constructed device measures flows from 0.2 to 20 feet per second. Instrument is capable of measuring flow velocity and direction in cases where either velocity or density is so low that dynamic pressure is below measurable range. It can be made into hand held instrument for measuring ventilation and air conditioning flow.
Inexpensive fixture makes quick copy of picture or photograph, film positive or negative, without darkroom. Device holds four-by-five inch instant-developing Polaroid 58 or 55 (or equivalent) film.
Simple, inexpensive, one-shot load device uses thin-walled soft-metal tube to absorb kinetic energy by controlled buckling.
Inexpensive set of modular semirigid box structures serve as multipurpose support for thin panels. Fixture holds several different, interchangeable, two-part, adjustable, contour-board subassemblies. Combining modules allows for accommodation to any length skin or panel.
Inexpensive latching relays incorporating one-second time delay prove effective for maintaining system power in place of computer facility automatic shutdown sensors that are activated by minute power surges or spikes in 60 Hz input signal.
Simple and inexpensive device, using solar cells, measures rapidly-responding active control surfaces of aeroelastically-scaled wind-tunnel models of aircraft. Device allows control surfaces to be measured to within 0.10 deg.
Simple, inexpensively-constructed device provides shock-and-vibration-resistant support.
Inexpensive internal coating improves reliability of plastic-packaged parts. Coating protects device from effects of humidity and heat and acts as barrier between device and harmful substances generated by plastic-packaging material.
Inexpensive kit improves bond quality, saves time, and is used in hard-to-reach areas. Kit provides precise pressure loading, and allows pressure to be monitored during curing cycle.
Electroless plating technique produces plate of uniform thickness. Hardness and abrasion resistance can be increased further by heat treatment. Method results in seamless coating over many materials, has low thermal conductivity, and is relatively inexpensive compared to conventional methods.