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Briefs: Materials
CHEM-Based Self-Deploying Planetary Storage Tanks
A document proposes self-deploying storage tanks, based on the cold elastic hibernated memory (CHEM) concept, to be used on remote planets. The CHEM concept, described in previous NASA Tech Briefs articles, involves the use of open-cell shape-memory-polymer (SMP) foam sandwich structures to make...
Briefs: Medical
Benchtop Detection of Proteins
A process, and a benchtop-scale apparatus for implementing the process, have been developed to detect proteins associated with specific microbes in water. The process and apparatus may also be useful for detection of proteins in other, more complex liquids. There may be numerous potential applications, including...
Briefs: Medical
Recombinant Collagenlike Proteins
A group of collagenlike recombinant proteins containing high densities of biologically active sites has been invented. The method used to express these proteins is similar to a method of expressing recombinant procollagens and collagens described in U. S. Patent 5,593,859, “Synthesis of human procollagens and...
Briefs: Medical
Remote Sensing of Parasitic Nematodes in Plants
A method and apparatus for remote sensing of parasitic nematodes in plants, now undergoing development, is based on measurement of visible and infrared spectral reflectances of fields where the plants are growing. Initial development efforts have been concentrated on detecting reniform nematodes...
Briefs: Physical Sciences
Direct Coupling From WGM Resonator Disks to Photodetectors
Output coupling of light from a whispering- gallery-mode (WGM) optical resonator directly to a photodetector has recently been demonstrated. By "directly" is meant that the coupling is effected without use of intervening optical components. Heretofore, coupling of light into and out of WGM...
Briefs: Physical Sciences
Multiple-Parameter, Low-False-Alarm Fire-Detection Systems
Fire-detection systems incorporating multiple sensors that measure multiple parameters are being developed for use in storage depots, cargo bays of ships and aircraft, and other locations not amenable to frequent, direct visual inspection. These systems are intended to improve upon...
Briefs: Physical Sciences
Using Digital Radiography To Image Liquid Nitrogen in Voids
Digital radiography by use of (1) a field- portable x-ray tube that emits low- energy x rays and (2) an electronic imaging x-ray detector has been found to be an effective technique for detecting liquid nitrogen inside voids in thermal- insulation panels. The technique was conceived as a...
Blog: Robotics, Automation & Control
Brain Machine Interface
Neuroscientists have advanced brain- machine interface (BMI) technology to the point where severely handicapped people who cannot contract even one leg or arm muscle can now independently compose and send e-mails and operate a TV in their homes. They are using only their thoughts to execute these actions. Cutting-edge...
Blog: Medical
Brain Wave Sensor
A tiny sensor that can detect magnetic field changes as small as 70 Femtoteslas — equivalent to the brain waves of a person daydreaming — has been demonstrated at the National Institute of Standards and Technology (NIST). The sensor could operate on a single AA battery and reduce the costs of non-invasive biomagnetic...
Blog: Medical
The Technicolor Brain
By activating multiple fluorescent proteins in neurons, neuroscientists at Harvard University have developed a method to image the brain and nervous system in a plethora of colors dubbed a "Brainbow." The technique, developed by Harvard scientists Jean Livet, Joshua R. Sanes, and Jeff W. Lichtman, allows researchers to tag...
Briefs: Physical Sciences
The figure schematically depicts a portable microleak-detection system that has been built especially for use in testing hydrogen tanks made of polymer-matrix composite materials. (As used here, "microleak"...
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Briefs: Physical Sciences
Cryogenic Shrouds for Testing Thermal-Insulation Panels
Cryogenic shrouds have been designed and built for use in thermo- mechanical testing of samples of thermal- insulation panels on cryogenic vessels. In the original application for which these shrouds were specifically designed, the samples are representative of the large area thermal-...
Briefs: Medical
Two devices — a magnetic separator and a special filter denoted a self-regenerating separator (SRS) — have been developed for separating sludge from the stream of wastewater...
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Briefs: Medical
Portable Unit for Metabolic Analysis
The Portable Unit for Metabolic Analysis (PUMA) is an instrument that measures several quantities indicative of human metabolic function. Specifically, this instrument makes time-resolved measurements of temperature, pressure, flow, and the partial pressures of oxygen and carbon dioxide in breath during both...
Briefs: Physical Sciences
A variant of the flash diffusivity technique has been devised for determining the thermal diffusivities, and thus the thermal conductivities, of individual aligned fibers. The technique...
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Briefs: Physical Sciences
The High Altitude/ Re-Entry Vehicle Infrared Imaging (HARVII) system is a portable instrumentation system for tracking and thermal imaging of a possibly distant and moving object. The HARVII is...
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Briefs: Physical Sciences
An improved readout scheme has been proposed for high-resolution thermometers, (HRTs) based on the use of superconducting quantum interference devices (SQUIDs) to measure temperature-...
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Blog: Medical
From Killer Gas to Cure
Despite its deadly reputation, carbon monoxide (CO) could save lives and boost health in the future. Chemists at the University of Sheffield in the UK have discovered a way to use targeted small doses of CO to benefit patients who have undergone heart surgery or organ transplants, as well as people suffering from high blood...
Blog: Medical
Artificial Cornea
For an estimated 10 million people worldwide who are blind due to cornea damage or disease, there may be hope in the form of an innovative artificial cornea design that reportedly overcomes the limitations of existing artificial corneas. Existing cornea implants need to be made larger to prevent excess corneal tissue from growing...
Blog: Materials
Pushing Measurement to the Edge
Researchers from the National Institute of Standards and Technology (NIST), IBM, and the Massachusetts Institute of Technology, have pushed the measurement of thin films to the edge to produce the first data on how the edges of metallic thin films contribute to their magnetic properties. The results may impact the...
Blog: Aerospace
Small Strength
Researchers at Rensselaer Polytechnic Institute have developed a new technique for identifying and repairing small, potentially dangerous cracks in aircraft wings and other structures made from polymer composites. By infusing a polymer with electrically conductive carbon nanotubes, and then monitoring the structure's electrical...
Briefs: Medical
Advanced Resistive Exercise Device
The advanced resistive exercise device (ARED), now at the prototype stage of development, is a versatile machine that can be used to perform different customized exercises for which, heretofore, it has been necessary to use different machines. Conceived as a means of helping astronauts and others to maintain...
Briefs: Medical
A process has been developed for the rapid tissue engineering of multicellular- tissue-equivalent assemblies by the controlled enzymatic degradation of...
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Briefs: Physical Sciences
Theoretical calculations have shown that the degrees of spin polarization in proposed nonmagnetic semiconductor resonant tunneling spin filters could be increased through exploitation of...
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Briefs: Physical Sciences
The resonant tunneling spin pump is a proposed semiconductor device that would generate spin-polarized electron currents. The resonant tunneling spin pump would be a purely electrical device in the sense that it...
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Briefs: Physical Sciences
CO₂-Reduction Primary Cell for Use on Venus
A document proposes a CO2-reduction primary electrochemical cell as a building block of batteries to supply electric power on the surface of Venus. The basic principle of the proposed cell is similar to that of terrestrial Zn-air batteries, the major differences being that (1) the anode metal would not...
Articles: Nanotechnology
The 2007 NASA Tech Briefs National Nano Engineering Conference (NNEC), to be held November 14-15 at the Boston Marriott Copley Place, is produced for design engineers who want to know what’s real,...
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Articles: Research Lab
By Mike Santori National Instruments Business & Technology Fellow National Instruments Austin, TX High-tech companies live and die by their ability to innovate. Creating new products and technologies is essential to...
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Who's Who: Mechanical & Fluid Systems
The Inductive Monitoring System (IMS) is a new computer program that monitors gyroscopes that keep the International Space Station properly oriented in space. IMS...
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