Stories

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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...
Briefs: Mechanical & Fluid Systems
Plasmoid Thruster for High Specific-Impulse Propulsion
A report discusses a new multi-turn, multi-lead design for the first generation PT-1 (Plasmoid Thruster) that produces thrust by expelling plasmas with embedded magnetic fields (plasmoids) at high velocities. This thruster is completely electrodeless, capable of using in-situ resources, and...
Briefs: Information Technology
Analysis Method for Quantifying Vehicle Design Goals
A document discusses a method for using Design Structure Matrices (DSM), coupled with high-level tools representing important life-cycle parameters, to comprehensively conceptualize a flight/ground space transportation system design by dealing with such variables as performance, up-front costs,...
Briefs: Information Technology
Improved Tracking of Targets by Cameras on a Mars Rover
A paper describes a method devised to increase the robustness and accuracy of tracking of targets by means of three stereoscopic pairs of video cameras on a Mars-rover-type exploratory robotic vehicle. Two of the camera pairs are mounted on a mast that can be adjusted in pan and tilt; the...
Briefs: Mechanical & Fluid Systems
Sample Caching Subsystem
A paper describes the Sample Caching Subsystem (SCS), a method for storing planetary core and soil samples in a container that seals the samples away from the environment to protect the integrity of the samples and any organics they might contain. This process places samples in individual sleeves that are sealed within a...
Briefs: Mechanical & Fluid Systems
Multistage Passive Cooler for Spaceborne Instruments
A document describes a three-stage passive radiative cooler for a cryogenic spectrometer to be launched into a low orbit around the Moon. This cooler is relatively lightweight and compact, and its basic design is scalable and otherwise adaptable to other applications in which there are...
Briefs: Information Technology
GVIPS Models and Software
Two reports discuss, respectively, (1) the generalized viscoplasticity with potential structure (GVIPS) class of mathematical models and (2) the Constitutive Material Parameter Estimator (COMPARE) computer program. GVIPS models are constructed within a thermodynamics- and potential-based theoretical framework, wherein one...
Briefs: Mechanical & Fluid Systems
Stowable Energy-Absorbing Rocker-Bogie Suspensions
A report discusses the design of the rocker-bogie suspensions of the Mars Exploration Rover vehicles, which were landed on Mars in January 2004. Going beyond the basic requirements regarding mobility on uneven terrain, the design had to satisfy requirements (1) to enable each suspension to contort...
Blog
NASA Briefs
The Web- based Real- Time Asset Monitoring (RAM) module enables emergency personnel to monitor and analyze data in the event of a natural disaster. The software can manage many disparate sources of data - including streaming data - within a facility, city, or county. Learn more here.
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Technology Business Needs
Fuel and Solar Cell Technologies This search for fuel cell system technologies includes the following: (1) Membrane Electronic Assembly (MEA) design & manufacturing; (2) MEA Membrane manufacturer/ supplier; (3) Supplier or material vendor of SGL graphite for stack manufacturing; (4) Hydrogen storage alloy technology;...
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Bug Exterminator
Finding and fixing design bugs in computer chips after they've been fabricated in silicon can be a tedious and costly process due to signals being buried inside the silicone. Engineering researchers at the University of Michigan have developed a new technology called FogClear to automate post-silicon debugging. FogClear uses...
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Techs of the Week
A light-emitting diode (LED) array, formed on a substrate using an etching method, is shaped to produce uniform light intensity and high production yield. A terrace formed under the light-emitting edge surface together with the grooves protects the LED from handling-induced damage during mounting because it is formed in a portion...
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Laser Diagnoses Decompression
Though not among the top 10 causes of death, decompression sickness can be fatal. A University of Houston professor is seeking to develop a laser-based system that can diagnose the sickness in seconds. Decompression sickness affects those who experience sudden, drastic changes in the air or water pressure surrounding...
Blog
Imaging Neural Cells
Scientists have identified a means to detect neural progenitor cells, which can develop into neurons and other nervous system cells, in the human brain using an imaging method called magnetic resonance spectroscopy (MRS). The discovery could pave the way for improved diagnosis and treatment for depression, Parkinson's disease,...
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Secure Payments
Credit card transactions may be a little more secure due to the Common Vulnerability Scoring System (CVSS) Version 2, which was recently adopted by the payment card industry. The system is co-authored by researchers at the National Institute of Standards and Technology (NIST) and Carnegie Mellon University, in collaboration with 23...
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Tech Needs of the Week
A company seeks microwavable packaging that produces authentic grilled foods in a home microwave oven with typical microwave food preparation times and convenience (3-8 minutes). All materials must be generally recognized as safe for contact with human food and withstand temperatures from -40 degrees to 450 degrees F....
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NASA Briefs
NASA's Lyndon B. Johnson Space Center has developed a prototype of an advanced resistive exercise device (ARED) that can perform a number of different exercises on one machine. Conceived to help astronauts maintain strength and endurance in low-gravity environments, the ARED could also be advantageous in terrestrial settings. Read more...
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Tourette's Treatment
Researchers from the Neurological Institute at University Hospitals Case Medical Center (UHCMC) have found that Deep Brain Stimulation (DBS) helps patients with Tourette Syndrome (TS) – the neurobehavioral disorder characterized by sudden, repetitive muscle movements and vocalizations. DBS involves the surgical...
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Optical Tweezers
MIT researchers have found a way to use the technology of optical tweezers to pick up, hold, and move around individual cells and other objects on the surface of a microchip. The development could become an important tool for both biological research and materials research, say MIT researchers Matthew J. Lang and David C....
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
Child Assisting Robot
The use of robots to help infants with special needs learn cognitive movements is the focus of research at the University of Delaware. Two university researchers - James Galloway, associate professor of physical therapy, and Sunil Agrawal, professor of mechanical engineering - have outfitted kid-size robots to provide mobility...
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Spotting Alzheimer's
Duke University Medical Center researchers have pinpointed a new marker that may help identify those at greatest risk for cognitive decline and Alzheimer's disease. The Duke researchers used functional magnetic resonance imaging (fMRI) on people with mild cognitive impairment (MCI) to track regions of the brain that become...
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Tech Needs of the Week
A company is seeking new analgesic actives. Speed of effectiveness, toleration, and shelf-life are of particular interest. Analgesics vary in dosage load, dosage form, molecular size, speed of effectiveness, and side effects or toxicity. The form of the new proposed analgesic active is open to discussion. A minimum of...
Blog: Photonics/Optics
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...
Blog
Rugged Wireless Sensors
Researchers at Purdue University, working with the U.S Air Force, have developed tiny wireless sensors resilient enough to survive the harsh conditions inside jet engines to detect when critical bearings are close to failing and prevent breakdowns. The devices use MEMS (microelectromechanical systems) technology to achieve a...
Blog
Current Attractions
The Aeronautics Research Mission Directorate at NASA's Glenn Research Center has developed a new silicon carbide differential amplifier integrated circuit chip that may provide benefits to anything requiring long-lasting electronic circuits in very hot environments. The chip exceeded 1,700 hours of continuous operation at 500...
Blog
Carbon Producing Wildfires
The recent rash of wildfires in Southern California will likely increase concern over long-term global warming. Research published in the Nov. 1 issue of the journal Nature concluded that wildfires in the boreal regions across northern Canada in 2003 were a major factor in higher carbon dioxide levels in that vast area,...

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