March 2008

In the never-ending quest to produce high-quality software, traditional dynamic testing plays a fundamental role. The weakness of dynamic testing is that it is only as good as the...

The uncertainty in the frequency of a linear- ion-trap frequency standard (LITS) can be reduced substantially by use of a very small magnetic inhomogeneity tailored to compensate...

Although it may not be obvious to the untrained eye, a number of technical innovations developed for aerospace and defense applications have found their way into the...

Instrument unit avionics
The Boeing Company
Chicago, IL
312-544-2000
www.boeing.com

The Boeing Company has been awarded a NASA contract...

IS-1200 inertial-optical motion tracker InterSense
Bedford, MA
781-541-6330
www.intersense.com

NASA’s Langley Research Center has awarded...

National Instruments, Austin, TX, has introduced the 6-GHz NI USB-5680 USB-controlled RMS RF power meter for automated test, measurement, and monitoring in a small footprint. Powered solely from the USB cable, the meter...

SOFIA (Stratospheric Observatory for Infrared Astronomy) is a joint venture between NASA and the German space agency, DLR, involving the use of a modified Boeing 747SP aircraft as an...

Techs for License
Detecting Your Level of Hydration

HydroSmart is a new way to determine if you are adequately hydrated at any given time. It is a handheld, portable, simple- to-use device that requires a stream of urine, and the results are given almost instantaneously via a color-changing reagent. A color change corresponds to the specific gravity of the urine...

Techs for License
High-Production Suction Head for Mud, Sludge, and Sewerage Dredging

This technology features a uniquely designed suction head that eliminates problems typically experienced in alluvial diamond mining, mud, sewerage pumping, or dredging operations. This patented system offers a proven solution where no divers are required, and which can be...

Tech Needs
Topical Delivery for Analgesic Medications

A company seeks new non-oral delivery mechanisms for analgesics. Non-oral methods avoid the stomach and the intestine. These new mechanisms might be topical; that is, in contact with the outer layer of the skin. However, other nonoral mechanisms are open for consideration. Non-oral administration...

Tech Needs
Heating Different Zones of Food in a Microwave Oven

An organization seeks technology to enable foods to become crispy when heated in a home microwave oven. The outer surface should heat and become (or remain) crispy, while the interior body of the food should heat only as appropriate. The organization seeks materials, ingredients, or other...

Briefs: Physical Sciences
WRATS Integrated Data Acquisition System

The Wing and Rotor Aeroelastic Test System (WRATS) data acquisition system (DAS) is a 64-channel data acquisition display and analysis system specifically designed for use with the WRATS 1/5-scale...

A recently developed breadboard version of an advanced signal processor for arraying many antennas in NASA's Deep Space Network (DSN) can accept inputs in a 500-MHz-wide frequency band...

Briefs: Electronics & Computers
Digital Receiver Phase Meter

The software of a commercially available digital radio receiver has been modified to make the receiver function as a two-channel low-noise phase meter. This phase meter is a prototype in the continuing...

A split-block waveguide circuit that rotates polarization by 90° has been designed with WR-3 input and output waveguides, which are rectangular waveguides used for a nominal...

Nano- multiplication- region avalanche photodiodes (NAPDs), and imaging arrays of NAPDs integrated with complementary metal oxide/semiconductor (CMOS) active-pixel-sensor integrated...

Bombardment with tightly focused electron beams has been suggested as a means of electrically disabling selected individual carbon-nanotubes (CNTs) in electronic devices. Evidence in...

Coupling of light into and out of whispering- gallery-mode (WGM) optical resonators can be enhanced by designing and fabricating the resonators to have certain non- axisymmetric...

G3 Genuine Guide Gear (G3) of North Vancouver, British Columbia, Canada, is a specialized manufacturer of backcountry ski and safety equipment — including telemark bindings and...

LiCoPO4 has been found to be a promising active cathode material for high-energy-density, thin-film, rechargeable electrochemical power cells. The potential of the charge/discharge...

Work output is comparable to conventional SMA alloys but with transition temperatures significantly exceeding those of conventional materials.

Compositions and production processes have...

Briefs: Mechanical & Fluid Systems
Integrated Force Method for Indeterminate Structures

Two methods of solving indeterminate structural-mechanics problems have been developed as products of research on the theory of strain compatibility. In these methods, stresses are...

Briefs: Mechanical & Fluid Systems
Conical Bearingless Motor/Generators

Motor/generators based on conical magnetic bearings have been invented as an improved alternative to prior such machines based, variously, on radial and/or axial magnetic bearings. Both the present and...

A nanotube array based on vertically aligned nanotubes or carbon nanofibers has been invented for use in localized electrical stimulation and recording of electrical responses in...

Briefs: Medical
Using Hyperspectral Imagery To Identify Turfgrass Stresses

The use of a form of remote sensing to aid in the management of large turfgrass fields (e.g. golf courses) has been proposed. A turfgrass field of interest would be surveyed in sunlight by use of an airborne hyperspectral imaging system, then the raw observational data would be...

A directional, catheter-sized cylindrical antenna has been developed for localized delivery of microwave radiation for heating (and thus killing) diseased tissue without excessively...

A method of shaping diffraction-grating grooves to optimize the spectral efficiency, spectral range, and image quality of a spectral imaging instrument is under development. The...

A new technique for reducing errors in a laser-cooled cesium fountain frequency standard provides for strong suppression of the light shift without need for mechanical shutters....

A mathematical model of image artifacts produced by dust particles on lenses has been derived. Machinevision systems often have to work with camera lenses that become dusty during use. Dust...

Nanostructured devices that exploit the hybrid-polariton resonances arising from coupling among photons, phonons, and plasmons are subjects of research directed toward the development of...

A Raman-and-atomic-force microscope (RAFM) has been shown to be capable of performing several liquid-transfer and sensory functions essential for the operation of a microfluidic...

A closed-loop pattern-recognition system is designed to provide guidance for maneuvering a small exploratory robotic vehicle (rover) on Mars to return to a landed spacecraft to...

Briefs: Information Technology
Orchestrator Telemetry Processing Pipeline

Orchestrator is a software application infrastructure for telemetry monitoring, logging, processing, and distribution. The architecture has been applied to support operations of a variety of planetary rovers. Built in Java with the Eclipse Rich Client Platform, Orchestrator can run on most commonly used...

Briefs: Information Technology
Scheme for Quantum Computing Immune to Decoherence

A constructive scheme has been devised to enable mapping of any quantum computation into a spintronic circuit in which the computation is encoded in a basis that is, in principle, immune to quantum decoherence. The scheme is implemented by an algorithm that utilizes multiple physical spins to...

Books & Reports: Physical Sciences
Spin-Stabilized Microsatellites With Solar Concentrators

A document proposes the development of spin-stabilized microsatellites powered by solar photovoltaic cells aided by solar concentrators. Each such satellite would have a cylindrical or other axisymmetric main body with solar cells mounted in a circumferential beltlike array on its exterior...

Books & Reports: Electronics & Computers
Phase Calibration of Antenna Arrays Aimed at Spacecraft

A document describes a method of calibrating phase differences among ground antennas in an array so that the maximumintensity direction of the far-field interference pattern of the array coincides with the direction for aiming the antennas to enable radio communication with a distant...

Books & Reports: Information Technology
Ring Bus Architecture for a Solid-State Recorder

A document concisely describes a ring bus architecture for a proposed solid-state recorder (SSR) that would serve as buffer of data to be transmitted from a spacecraft to Earth. This architecture would afford fault tolerance needed for reliable operation in an anticipated high-radiation...

Books & Reports: Information Technology
Image Compression Algorithm Altered To Improve Stereo Ranging

A report discusses a modification of the ICER image-data-compression algorithm to increase the accuracy of ranging computations performed on compressed stereoscopic image pairs captured by cameras aboard the Mars Exploration Rovers. (ICER and variants thereof were discussed in several...

Machine builders in this day and age are part of a fast-growing and rapidly changing industry sector. With vast improvements in commercial off-the-shelf products for...

A chromatic or color-corrected lenses for use in the visible portion of the electromagnetic spectrum have been addressed in literature, textbooks, and industry journals as early as the 18th Century. Many...

For more than 40 years, Italray srl (Florence, Italy) has manufactured radiological equipment for traditional and digital medical applications, as well as computer-assisted systems...

The discovery of X-rays was first reported at the end of 1895 when Wilhelm Conrad Rontgen was conducting experiments with electrostatic charges and cathode ray tubes. In 2008, we have...

Products: Imaging
TFT LCD Display

AZ Displays, Aliso Viejo, CA, has released the PD057VT1, a 5.7-inch digital active matrix TFT panel display. The PD057VT1 display is compatible with computer screen formats and has full Video Graphics Array/VGA (640 × 480...

Products: Imaging
DGy Codecs

RGB Spectrum, Alameda, CA, introduces the DGy® 201x and 301x codecs, ideal digital recording and streaming solutions for demanding, mission critical missions. DGy codecs record, transmit, and stream high scan rate...

Cognex Corporation, Natick, MA, offers the In-Sight® 1820 vision-based wafer pre-aligner. Utilizing proprietary Cognex Notch-Max™ alignment technology, the 1820 vision system provides precise...

Products: Imaging
Inspection Zoom Lens

Edmund Optics®, Barrington, NJ, has released the VZM™ 100i series parafocal zoom lens systems for video cameras. Ideal for inspection systems needing to handle many objects without changing working...

Phoenix Display International (PDI), Tempe, AZ, has introduced a line of sunlight-readable 5.7-inch TFTs with QVGA (320 x 240) resolution. The modules have improved contrast, color saturation, and response time...

Products: Imaging
1.4 Megapixel Area Camera

DALSA Corporation, Waterloo, ON, has released its Falcon 1.4M100, a 1.4 megapixel area camera that delivers 100 frames per second at full resolution in an ultra-compact body measuring 44 mm × 44 mm × 44 mm....

Blog
Oxidative Stress Genetic Pathway

Scientists at the University of Wisconsin at Madison have discovered a genetic pathway that may hold the key to understanding oxidative stress, the process that contributes to diseases such as Alzheimer's, heart disease, stroke, cancer, as well as aging. The finding could one day enable the manipulation of genes...

Blog
Producing Organic Transistors

A simple surface treatment technique developed by researchers at the National Institute of Standards and Technology (NIST), Penn State, and the University of Kentucky promises a low-cost method to produce arrays of organic electronic transistors on polymer sheets, paving the way for flexible displays and large...

Blog
Helpful Hair

"You are what you eat and drink - and that is recorded in your hair," says geochemist Thure Cerling, who led University of Utah research with ecologist Jim Ehleringer. The scientists developed a new crime-fighting tool by showing that human hair reveals the general location where a person drank water, helping police track past...

Blog
Overtaking Assistant

Overtaking on two-lane roads is easier if drivers use what is known as an overtaking assistant, a system which indicates when it is safe to overtake. This system prevents reckless drivers overtaking when it is not safe, and can also aid cautious drivers in overtaking slower vehicles.

Researcher Geertje Hegeman from...

Blog
Live Cancer Gene

Researchers at Stony Brook University Medical Center have identified a family of genes linked to the development of liver cancer. Led by Wadie F. Bahou, M.D., Professor of Medicine and Genetics, the team discovered in a mouse model that the loss of one specific gene (Iqgap2) in this family causes Hepatocellular carcinoma (HCC),...

Blog
SIDECAR Miniaturization

The detector controls and data conversion electronics components on the James Webb Space Telescope - collectively called a "SIDECAR" - have been miniaturized from a volume of about one cubic meter to a small integrated circuit. SIDECAR ASIC (System for Image Digitization, Enhancement, Control, And Retrieval Application...

Blog
NASA Briefs

An optical filter consisting of a multilayer spectral coating on a flexible membrane has been designed by NASA's Jet Propulsion Laboratory to be placed in front of the 200-inch Hale telescope on Mt. Palomar. The filter is intended to protect the telescope against solar radiant flux and limit solar heating of the interior of the...

Blog
Student LED Innovation

Martin Schubert - a Rensselaer Polytechnic Institute doctoral student in electrical, computer, and systems engineering - has developed the first polarized light emitting diode (LED), an innovation that could vastly improve LCD screens, conserve energy, and usher in the next generation of ultra-efficient LEDs. Schubert's...

Blog
Earthquake

Three-hundred years ago, the Juan de Fuca plate under the ocean in America's Pacific Northwest suddenly slipped beneath the North American plate and forced its way about 60 feet eastward, triggering a massive earthquake that scientists estimate was roughly magnitude 9.0. The quake was so large that the tsunamis it created traveled all...

Blog
"Two-Faced" Particles

Researchers at North Carolina State University have demonstrated that Janus particles - microscopic "two-faced" spheres whose halves are physically or chemically different - will move like little submarines when an alternating electrical field is applied to the liquid surrounding them. The micrometer-sized particles convert...

Blog
Current Attractions

According to Edward Austin, Science and Mission Operation Project Manager for the Stratospheric Observatory for Infrared Astronomy (SOFIA), there are a lot of things that are obscured in the galaxy that we would want to see. We can use infrared technology, but a lot of the infrared spectrum is actually blocked by water vapor...

Blog
Cell Phones and Driving

If there was any doubt that cell phones distract drivers, one needs to look no further than a study by Carnegie Mellon University scientists that concludes that drivers engaged in cell phone use commit some of the same driving errors that can occur under the influence of alcohol.

The study examined 29 volunteers...

Blog
Tech Briefs

Integrated microbatteries have been proposed to satisfy an anticipated need for long-life, low-rate primary batteries, having volumes less than 1 cubic millimeter, to power electronic circuitry in implantable medical devices. In one contemplated application, such a battery would be incorporated into a tubular hearing-aid device to be...

Blog
Anti-Piracy Chip

Computer engineers at the University of Michigan and Rice University hope to solve the growing problem of chip patent infringement through a cryptography scheme that assigns each chip a unique lock and key. Called EPIC for Ending Piracy of Integrated Circuits, the technique relies on established cryptography methods, adding...

Blog
Plant Toxin

A powerful plant toxin widely feared for its bioterrorism potential may one day be tamed using findings about how the toxin attacks cells. The findings may also help scientists combat food poisoning episodes.

According to biotechnology researchers at Rutgers University, ricin, extracted from castor beans, tricks a cell into...

Blog
Alleviating Arthritis

About 46 million people suffer from arthritis in the United States alone. The worst cases require painful surgeries to drill holes in and reinforce joints. Now, researchers working at the National Institute of Standards and Technology (NIST) are studying an unusually pliant, yet strong, synthetic cartilage replacement in...

Blog
Haptic Interface

Carnegie Mellon University researchers have developed a touch-based, or haptic, interface that could allow people to realistically feel textures and shapes of 3-D designs created on computers. The system involves a single lightweight moving part that floats on magnetic fields. Magnetic levitation eliminates the need for...

Blog
Low-Cost Biofuel

University of Maryland researchers have created a process to convert large volumes of plant products, from leftover brewer's mash to paper trash, into ethanol and other biofuel alternatives to gasoline. Developed by University of Maryland professors Steve Hutcheson and Ron Weiner, the technique, called the Zymetis process,...

Blog
Single-Crystal Semiconductor Wire

Scientists from Penn State University and the University of Southampton in the United Kingdom have developed a process to grow a single-crystal semiconductor inside the tunnel of a hollow optical fiber. The device adds new electronic capabilities to optical fibers, whose performance often is degraded at the...

Blog
Tat Circuit

Researchers at the University of California, San Diego and Oak Ridge National Laboratory have discovered how a genetic circuit in HIV controls whether the virus turns on or stays dormant, and have succeeded in forcing the virus towards dormancy. Further studies are under way on the feasibility of using this approach for anti-HIV...

Blog
NASA Briefs

The Marshall Space Flight Center is working on the use of controlled illumination by light-emitting diodes (LEDs) to treat mucositis and to accelerate healing of wounds. The basic idea is to illuminate the affected area of a patient with light of an intensity, duration, and wavelength chosen to produce a therapeutic effect while...

Blog
Squirrel Stress

Tests on the influence of a stress-related hormone in ground squirrels could have an impact on understanding how it influences human learning, according to Jill Mateo, a University of Chicago researcher. The squirrels learn more quickly if they have a modest amount of cortisol - a hormone produced in response to stress - than...

Blog
Carbon Nanotube Interconnects

Nanotechnology has taken another significant step toward someday revolutionizing the computer industry. Researchers at Rensselaer Polytechnic Institute recently used Rensselaer’s Computational Center for Nanotechnology Innovations, the world’s most powerful university-based supercomputer, to measure...

Blog
Wireless Defibrillators

Wearing an implantable pacemaker or cardiac defibrillator equipped with wireless technology can make life a lot simpler for heart patients. Wireless technology gives physicians the ability to perform remote device checks, freeing the patient from time-consuming and potentially costly office visits. However, according to a...

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