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White Papers

This paper introduces the three levels of data-logging software for use with National Instruments’ DAQ devices -- NI LabVIEW SignalExpress, NI LabVIEW SignalExpress LE, and NI LabVIEW.

Blog
White Papers

This paper introduces the three levels of data-logging software for use with National Instruments’ DAQ devices -- NI LabVIEW SignalExpress, NI LabVIEW SignalExpress LE, and NI LabVIEW.

Unique Method for Orifice Production

This white paper from Bird Precision explains that in producing accurate,...

Blog
Intelligent Sunglasses

Researchers at the University of Washington (Seattle, WA) have designed prototype sunglasses that darken instantaneously, using electrochromic materials that change transparency depending on the electric currents running through them. The wearer spins a tiny dial on the arm of the glasses to change lens color or...

Blog
Current Attractions

Each month, NTB highlights tech briefs related to a particular area of technology in a special section known as Technology Focus. Here's an Insider look at the April focus on Sensors.

Wearable Environmental and Physiological Sensing Unit

Developed at NASA™s Ames Research Center, the wearable environmental and...

Blog
Technologies of the Week

A multilayer plastic film is available that meets the specifications required for flexible food packaging. View this technology here.

Blog
Fancar Aircraft

Engineers at Urban Aeronautics (Yavne, Israel) are developing the prototype X-Hawk Fancraft(TM), a Vertical Take-Off and Landing (VTOL) vehicle whose rotors, unlike a helicopter, are contained in the body of the craft. Originally envisioned as a medical evacuation vehicle, X-Hawk’s modular cargo bay allows for tailor-made,...

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Nano 50 Deadline

Nominations for Nanotech Briefs' third annual Nano 50 awards competition are being accepted through 11:59 PM today, April 2. The awards honor the top 50 innovators, products, and technological advancements that demonstrate the greatest potential toward developing the commercialization of nanotechnology. Previous winners include...

Blog
Technology Business Briefs

A Fiber Optic-Based Integration System (FOBIS) has been developed that may be capable of in-situ, real-time biological monitoring, and is based on a single fiber optic system. A compact, multi-functional device, the FOBIS incorporates three working units (a Micro-Flow Cytometer, a Micro-Photometer, and a Micro-Sensor)...

Blog
Chain-mail Fabric

University of Illinois scientists have fabricated the world's smallest

chain-mail fabric that consists of a network of small rings about 500

University of Illinois scientists have fabricated the world's smallest chain-mail fabric that consists of a network of small rings about 500 microns in diameter and even...

A filter function has been derived as a means of optimally weighting the wavefront estimates obtained in image-based phase retrieval performed at multiple points distributed over the...

Briefs: Medical
Wearable Environmental and Physiological Sensing Unit

The wearable environmental and physiological sensing unit (WEPS) is a prototype of systems to be worn by emergency workers (e.g., firefighters and members of hazardous-material response teams) to increase their level of safety. The WEPS includes sensors that measure a few key physiological...

A focus-diverse phase-retrieval algorithm has been shown to perform adequately for the purpose of image-based wavefront sensing when (1) broadband light (typically spanning the...

A phase-diverse iterative-transform phase-retrieval algorithm enables high-spatial-frequency, high-dynamic-range, image-based wavefront sensing. [The terms "phase-diverse," "phase...

In an alternative hardware design for an apparatus used in image-based wavefront sensing, defocus diversity is introduced by means of fixed lenses that are mounted in a filter wheel (see...

Briefs: Electronics & Computers
Smooth Phase Interpolated Keying

Smooth phase interpolated keying (SPIK) is an improved method of computing smooth phase-modulation waveforms for radio communication systems that convey digital information. SPIK is applicable to a variety of...

Briefs: Electronics & Computers
Maintaining Stability During a Conducted-Ripple EMC Test

An improved technique, and electronic circuitry to implement the technique, have been developed for a military-standard electromagnetic-compatibility (EMC) test in which one analyzes susceptibility to low-frequency ripple conducted into the equipment under test via a DC power line. In the...

Briefs: Electronics & Computers
Photodiode Preamplifier for Preamplifier for Weak Signals

An improved preamplifier circuit has been designed for processing the output of an avalanche photodiode (APD) that is used in a high-resolution laser ranging system to detect laser pulses returning from a target. The improved circuit stands in contrast to prior such circuits in which the...

Briefs: Electronics & Computers
Advanced High-Definition Video Cameras

A product line of high-definition color video cameras, now under development, offers a superior combination of desirable characteristics, including high frame rates, high resolutions, low power consumption, and compactness. Several of the cameras feature a 3,840 × 2,160-pixel format with progressive...

Briefs: Semiconductors & ICs
Circuit for Full Charging of Series Lithium-Ion Cells

An advanced charger has been proposed for a battery that comprises several lithium-ion cells in series. The proposal is directed toward charging the cells in as nearly an optimum manner as possible despite unit-to-unit differences among the nominally identical cells.

Briefs: Semiconductors & ICs
Analog Nonvolatile Computer Memory Circuits

In nonvolatile random-access memory (RAM) circuits of a proposed type, digital data would be stored in analog form in ferroelectric field-effect transistors (FFETs). This type of memory circuit would offer advantages over prior volatile and nonvolatile types:

Briefs: Software
World Wind 3D Earth Viewing

World Wind allows users to zoom from satellite altitude down to any place on Earth, leveraging high-resolution LandSat imagery and SRTM (Shuttle Radar Topography Mission) elevation data to experience Earth in visually rich 3D. In addition to Earth, World Wind can also visualize other planets, and there are already...

Briefs: Software
JavaGenes Molecular Evolution

JavaGenes is a general-purpose, evolutionary software system written in Java. It implements several versions of a genetic algorithm, simulated annealing, stochastic hill climbing, and other search techniques. This software has been used to evolve molecules, atomic force field parameters, digital circuits, Earth...

Briefs: Materials
Accounting for Uncertainties in Strengths of SiC MEMS Parts

A methodology has been devised for accounting for uncertainties in the strengths of silicon carbide structural components of microelectromechanical systems (MEMS). The methodology enables prediction of the probabilistic strengths of complexly shaped MEMS parts using data from tests of...

Briefs: Materials
Lithium Dinitramide as an Additive in Lithium Power Cells

Lithium dinitramide, LiN(NO2)2 has shown promise as an additive to nonaqueous electrolytes in rechargeable and non-rechargeable lithium-ion-based electrochemical power cells. Such non-aqueous electrolytes consist of lithium salts dissolved in mixtures of organic...

Ion-conducting polymers that are hybrids of organic and inorganic moieties and that are suitable for forming into solid electrolyte membranes have been invented in an effort to improve upon the...

MoO3 has shown promise as a cathode material that can extend the upper limit of operating temperature of rechargeable lithium thin-film electrochemical cells. Cells of...

In a crash, keeping the occupants alive and uninjured is paramount. In order to study the dynamics of an impact, military and general aviation...

NextEngine, Santa Monica, CA, offers the Desktop 3D Scanner, a full-color multi-laser scanner that scans complex shapes for CAD and 3D design applications on the desktop. About the size of a cereal box, the scanner...

Sierra Design Engineering, Mount Aukum, California BUB Enterprises, Grass Valley, California; ALGOR, Inc., Pittsburgh, Pennsylvania

A streamliner motorcycle designed and built...

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