Products: Robotics, Automation & Control
DC Motor

Nidec Copal (Torrance, CA) has announced the HG16 RoHS-compatible DC motor with planetary gearbox. The 0.63" OD (16 mm) DC motor has three axial lengths that develop rated gear motor torques of 3.47 oz-in, 4.86 oz-in, and 6.94...

In just the last few years, innovation in alternative-energy technologies have gained significant footholds in product development lifecycles and are rapidly changing our individual...

Researchers at the University of Leeds have found an energy-efficient way to make hydrogen out of used vegetable oils discarded by restaurants and other establishments. The process generates some of...

Researchers at the University of Maryland are developing a new "thermally elastic" metal alloy for use in advanced refrigeration and air conditioning systems. The technology...

Articles: Energy
Optimized Power Devices Enable Energy Efficient Solar Inverters and Micro-Converters

As the demand for greener appliances and consumer products soars across the globe, and energy savings becomes a global phenomenon (and necessity) in residential and commercial environments, solar and wind power technologies have begun to proliferate in cities...

Question of the Week
Should brain scans be admissible as legal evidence?

This week's question concerns brain scans and the legal system. In 2008 a judge in India convicted a woman of murdering her fiancee based partly on brain scan evidence that gauged her ability to remember details of the crime. And in the US, fMRI scans have already found their way into...

The latest e-zine from Green Design & Manufacturing is here! The premiere issue of Solar and Wind Power features articles, tech briefs, application stories, and more regarding alternative energy...

A new solar concentrator from Ph.D. student Jason Karp of the University of California, San Diego collects sunlight with thousands of small lenses imprinted on a common sheet. All these lenses couple...

Most wind farms consist of horizontal axis wind turbines (HAWTs), but an alternative paradigm for wind energy extraction is found in vertical axis wind turbine (VAWT) designs. A single spatially-isolated VAWT has a significantly lower power coefficient.
In recent years, better stabilizer formulations for ethylene vinyl-acetate have been developed, giving more confidence in the long-term stability of PV packaging materials. Because of this, some manufacturers have stopped using Ce-doped glass. National Renewable Energy Laboratory researchers studied Ce-free glass.
Question of the Week
Was the discovery of Russian spies still operating in the US surprising?

This week's question concerns the recent discovery of Russian spies still operating in the US. In June, authorities uncovered a Russian spy ring of 10 individuals operating in New York and Cambridge. Last week, the US and Russian governments completed a "spy swap" in...

News: Energy
Bio-Based Process for Producing Fuel Additive

A new bio-based method for producing a much-used fuel additive and industrial chemical, which is currently made from petroleum products, has been developed by an Iowa State University researcher.

Cornell University researchers have discovered a simple process – employing molecules typically used in blue jean and ink dyes – for building an organic framework that...

Researchers at North Carolina State University have developed a more efficient technique for producing biofuels from woody plants that significantly reduces the waste that results from...

Road surfaces can make a big contribution to local air purity. This conclusion can be drawn from the first test results on a road surface of air-purifying concrete, which reduces the...

Dialight (Farmingdale, NJ) has introduced ultra-bright DuroSite LED High Bay fixtures that incorporate Cree’s Xlamp® XP-G LEDs, delivering nearly 12,000 lumens while consuming only 150 watts. Free of...

Sensors for monitoring surface wear and/or temperature without need for wire connections have been developed. Excitation and interrogation of these sensors are accomplished by means of a...

Briefs: Physical Sciences
Optical Pointing Sensor

The optical pointing sensor provides a means of directly measuring the relative positions of JPL’s Formation Control Testbed (FCT) vehicles without communication. This innovation is a steerable infrared (IR)...

Briefs: Manufacturing & Prototyping
Processing Nanostructured Sensors Using Microfabrication Techniques

Standard microfabrication techniques can be implemented and scaled to help assemble nanoscale microsensors. Currently nanostructures are often deposited onto materials primarily by adding them to a solution, then applying the solution in a thin film. This results in random...

Briefs: Physical Sciences
Radio-Frequency Tank Eigenmode Sensor for Propellant Quantity Gauging

Although there are several methods for determining liquid level in a tank, there are no proven methods to quickly gauge the amount of propellant in a tank while it is in low gravity or under low-settling thrust conditions where propellant sloshing is an issue. Having the...

Briefs: Physical Sciences
High-Temperature Optical Sensor

A high-temperature optical sensor (see Figure 1) has been developed that can operate at temperatures up to 1,000 °C. The sensor development process consists of two parts: packaging of a fiber Bragg grating...

A circuit topology has been designed to guarantee the output of intrinsically safe power for the operation of electrical devices in a hazardous environment. This...

Mechanical squeezing has been found to alter the frequency tuning of a whispering-gallery-mode (WGM) optical resonator that has an elliptical shape and is made of lithium niobate. It...

Briefs: Electronics & Computers
Configurable Multi-Purpose Processor

Advancements in technology have allowed the miniaturization of systems used in aerospace vehicles. This technology is driven by the need for next-generation systems that provide reliable, responsive, and cost-effective range operations while providing increased capabilities such as simultaneous mission...

Briefs: Software
Automated Computer Access Request System

The Automated Computer Access Request (AutoCAR) system is a Web-based account provisioning application that replaces the time-consuming paper-based computer-access request process at Johnson Space Center (JSC). AutoCAR combines rules-based and role-based functionality in one application to provide a...

Briefs: Software
Range Safety for an Autonomous Flight Safety System

The Range Safety Algorithm software encapsulates the various constructs and algorithms required to accomplish Time Space Position Information (TSPI) data management from multiple tracking sources, autonomous mission mode detection and management, and flight-termination mission rule evaluation....

Briefs: Software
Fast and Easy Searching of Files in Unisys 2200 Computers

A program has been written to enable (1) fast and easy searching of symbolic files for one or more strings of characters, dates, or numerical values in specific fields or columns and (2) summarizing results of searching other fields or columns. Intended for use in Unisys 2200-series...

Briefs: Software
Parachute Drag Model

DTV-SIM is a computer program that implements a mathematical model of the flight dynamics of a missile-shaped drop test vehicle (DTV) equipped with a multistage parachute system that includes two simultaneously deployed drogue parachutes and three main parachutes deployed subsequently and simultaneously by use of pilot...

Briefs: Software
Evolutionary Scheduler for the Deep Space Network

A computer program assists human schedulers in satisfying, to the maximum extent possible, competing demands from multiple spacecraft missions for utilization of the transmitting/receiving Earth stations of NASA’s Deep Space Network. The program embodies a concept of optimal scheduling to...

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