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Briefs: Electronics & Computers
A glove has been instrumented to sense the angles of finger joints via the electrical resistances of strips of an electrically conductive elastomer on the backs of the fingers, including the thumb (see...
Briefs: Photonics/Optics
The figure illustrates aspects of a lightweight, relatively inexpensive solar photovoltaic module suitable for use on Earth or in outer space in conjunction with at least a single-axis...
Briefs: Photonics/Optics
An imaging method to detect flaws in composite pressure vessels used in the aerospace industry has been developed. Solid-rocket-motor casings and fuel or oxidizer tanks for liquid rocket motors can now be...
Briefs: Physical Sciences
An all-electronic digital particle-image velocimetry (PIV) system has been developed for use in measuring three-dimensional velocities at numerous points throughout a plane of interest in...
Briefs: Electronics & Computers
An oscillator circuit that contains superconductive and ferroelectric resonator elements is undergoing development. This circuit is designed to serve as a frequency-locked local...
Briefs: Physical Sciences
Scanning-mode shadowgraphy has been proposed as an alternative optical technique for diagnosis of shock waves. Under suitable conditions, scanning-mode shadowgraphy could overcome the...
Briefs: Software
Quick and Unusually Easy Repository Search Software
The Quick and Unusually Easy Repository Search computer program simplifies the search for information contained in a repository of documents at Marshall Space Flight Center. Searching for information on the basis of general subjects can be very time-consuming and frustrating: The repository at...
Briefs: Physical Sciences
A sonochemical treatment has been proposed for removing hydrazine contaminants from water. The basis of the proposal is a conjecture that the sonochemical effect in water containing...
Briefs: Information Technology
A program of research on the use of wavelets for compression of data in a parallel-computing environment has led to development of a scheme for compressing image data. The purpose of the research...
Briefs: Photonics/Optics
Thermal-desorption x-ray photoelectron spectroscopy (TDXPS) is a technique in which the thermal aspect of thermogravimetric analysis (TGA) is combined with non-angle-resolved x-ray...
Briefs: Mechanical & Fluid Systems
Automated Calibration of Torque Analyzers Without Weights
An automated apparatus calibrates digital torque analyzers that, in turn, are used to verify the accuracies of torque wrenches. The apparatus is located in a central laboratory, and the digital torque analyzers are brought to the laboratory for calibration. Previously, the torque analyzers...
Briefs: Photonics/Optics
Ultraviolet Hygrometer
An ultraviolet hygrometer has been developed that uses an optical technique to provide fast response, stable calibration, and immunity to airborne contaminants. It is a two-wavelength two-path instrument that relies on the differential absorption by water vapor of two wavelengths in the vacuum ultraviolet. The differential...
Briefs: Photonics/Optics
NREL scientists have developed an optical processing furnace that combines photonic effects of light with heat to selectively induce reactions at far lower temperatures than they would be if caused by heat alone. In...
Briefs: Electronics & Computers
The figure illustrates the major functional blocks of an impedance-based cable-testing apparatus that can locate an open or short circuit in a cable. There is no need to disconnect the cable from all other equipment...
Briefs: Electronics & Computers
A cable-testing apparatus has been designed for use in detecting a short or open circuit in a cable, subject to a special frequency requirement as explained in the next paragraph. This cable tester is...
Briefs: Materials
An improved nonlinear mathematical model is being developed for use in predicting the complex, time-varying stress-and-strain behaviors of viscoelastic materials. The development of this...
Briefs: Materials
A method of computational simulation of progressive fracture in composite-material (matrix/fiber) structural components has been developed. This method does not involve stress-intensity...
Briefs: Electronics & Computers
Curves of limiting voltage (V) as a function of temperature (T) for nickel/cadmium cells and batteries can be computed by use of a mathematical cell model based on first principles....
Briefs: Electronics & Computers
The Lightning Detection and Ranging (LDAR) system is a network of lightning-monitoring stations at Kennedy Space Center. The LDAR system contains equipment for measuring and indicating the...
Briefs: Robotics, Automation & Control
In-situ resource utilization (ISRU) equipment would be incorporated into remotely controlled exploratory robots, according to a proposal, to generate fuels and oxidizers to extend...
Briefs: Mechanical & Fluid Systems
A structure provides rigid support for a cryogenic component but transmits minimal heat. The structure includes two beams of Invar (or equivalent low-thermal expansion iron/nickel alloy) that...
Briefs: Materials
A foam suppressor removes soap and other foaming agents from a stream of wastewater that is being treated electrolytically. This wastewater is a combination of laundry, hygiene, and urine wastewater. It is desirable...
Briefs: Photonics/Optics
The portable, easily expandable Microburst Automatic Detection (MAD) system can dramatically improve aviation safety. Mimicking the reasoning of a human observer on the lookout for weather hazards, MAD...
Briefs: Materials
Two Methods for Purifying Carbon Tetrachloride
Two methods have been developed to purify large batches of technical-grade carbon tetrachloride. The relatively impure carbon tetrachloride that had been purchased for use in infrared analysis of dissolved hydrocarbons proved that it could be purified. One method is spinning-band distillation, which is...
Briefs: Manufacturing & Prototyping
Controlled-Orientation Short-Fiber Composite Bodies
A technique for depositing materials into position using a positive-displacement extruder to build up a body has been developed. This technique also includes a process to prepare composite materials through a solid free-body forming process containing directionally aligned short-fiber...
Briefs: Physical Sciences
A computational method for designing all-dielectric grating electromagnetic filters involves a combination of (1) numerical simulation of filter performance via integral-equation...
Briefs: Materials
Nitrogen-Beam Source for Deposition of III/V Nitrides
A nitrogen-beam source has been developed to significantly improve the synthesis of wide-band-gap nitrides.
Briefs: Physical Sciences
The figure schematically illustrates an improved apparatus for generating a flow of gas with precise, stable humidity. Such flows are needed for calibration of dew-point, frost-point, and...
Briefs: Electronics & Computers
Recombination lifetime and minority-carrier lifetime are key performance parameters of semiconductor wafers used for microelectronics and solar cells. They are also...
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Webcasts
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The Real Impact of AR and AI in the Industrial Equipment Industry
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