Videos: Green Design & Manufacturing
An Inside Look at Biomass in the Lab

At the National Renewable Energy Laboratory, scientists are developing technology to allow ethanol to be made from cellulose and hemicellulose, the fibrous material that makes up the bulk of most plant...

Coolerado Corp. of Denver, CO is the first winner of the UC Davis “Western Cooling Challenge.” Recent federal tests showed that their five-ton commercial rooftop unit should be able to...

Podcasts
Thin-Film Plate Polarizers: A New Polarization Option

While there are many types of polarizers and polarizing beamsplitters available today, none of them solves every problem. This podcast with Dr. Turan Erdogan, Chief Technology Officer of Semrock, discusses the company's thin-film plate polarizers as a new option.

News: Green Design & Manufacturing
Warming Ocean Triggers Release of Greenhouse Gas

Scientists at the National Oceanography Centre, Southampton, UK, have found that the warming of an Arctic current over the last 30 years has triggered the release of methane - a potent...

High-rate digestion with microfiltration is state-of-the-art in large sewage plants. It effectively removes accumulated sludge, and produces biogas to generate energy. A Fraunhofer Institute study reveals...

Oak Ridge National Laboratory is helping to improve fuel efficiency by developing lightweight carbon composite parts. With carbon composites, scientists can slice the weight of a car in half.

The T7 absolute inclinometer from US Digital (Vancouver, WA) utilizes a solid-state sensor to give high-accuracy tilt readings over a 360 degree range, and is ideal for concentrated solar power...

News: Green Design & Manufacturing
Using Plastics to Make Solar Cells More Cost-Effective

Scientists are striving to develop organic solar cells that can be produced as easily and inexpensively as thin films. A major obstacle is coaxing these carbon-based materials to...

A filigree wire is standardly used to slice silicon blocks (ingots) into paper-thin wafers for solar cells. This wire can cut through the ingot at a speed of up to 60 km/h. Several...

A team of researchers from the U.S. and China modified a microbial fuel cell - a device that uses naturally occurring bacteria to convert wastewater into clean water...

Scientists at Berkeley Lab have created non-toxic magnesium oxide nanocrystals whose size can be adjusted within just a few nanometers. The nanocrystals glow blue when exposed...

Blog
Who Benefits From "Cash for Clunkers"?

The U.S. Senate is now deciding on whether to approve an additional $2 billion in funding for the government's "Cash for Clunkers" program. Should the Senate approve, President Obama is certain to approve extending the program, designed to replace old gas-guzzling vehicles with more fuel-efficient ones, by...

Videos: Green Design & Manufacturing
Geologic Carbon Sequestration

Curtis Oldenburg of Lawrence Berkeley National Laboratory presents a summer lecture titled, “Geologic Carbon Sequestration: Mitigating Climate Change by Injecting CO2 Underground.” He discusses challenges,...

Philips Lumileds (San Jose, CA) expanded its LUXEON® Rebel family of LEDs with nine new emitters designed for illumination solutions such as recessed lighting, street lamps, and retrofit bulbs. The new LEDs...

DOE announced the availability of up to $5.5 million from the American Recovery and Reinvestment Act to increase the use of higher ethanol blends up to E85 (85% ethanol/15% gasoline) by expanding refueling...

News: Green Design & Manufacturing
Working Toward Better CO2 Capture

Separating carbon dioxide from its polluting source - such as the flue gas from a coal-fired power plant - may soon become cleaner and more efficient thanks to a screening method developed by a Lawrence...

News: Green Design & Manufacturing
LED Driver Increases Component Longevity

Supertex, Inc. (Sunnyvale, CA) introduces a buck-mode LED driver IC with hysteretic current control and high-side current sensing. The HV9918 is ideal for a variety of solid-state lighting...

Podcasts
Allen Parker, Systems Engineer, Advanced Structures and Measurement Group, Dryden Flight Research Center

Allen Parker is a systems engineer with expertise in the areas of fiber optics and data acquisition. He is currently part of the team that is developing and flight testing an innovative new fiber optic wing shape sensor system installed on...

The traditional engineering response to testing a new wireless standard often involves selecting a box instrument with the closest specifications. For automated test systems with...

A proposed system in a gondola containing scientific instruments suspended by a balloon over the surface of the Saturn moon Titan would quickly acquire samples of rock or ice from the...

A proposed alternative design for the balloon- borne ground-sampling system described in the immediately preceding article would not rely on free fall to drive a harpoonlike...

A digital signal-processing algorithm has been devised as a means of aligning (as defined below) the outputs of multiple receiving radio antennas in a large array for the purpose of...

Briefs: Electronics & Computers
Enhanced Video-Oculography System

A previously developed video-oculography system has been enhanced for use in measuring vestibulo-ocular reflexes of a human subject in a centrifuge, motor vehicle, or other setting. The system as previously developed included a lightweight digital video camera mounted on goggles. The left eye was illuminated by...

A method has been proposed to increase the degree of synchronization of a radio receiver with the phase of a suppressed carrier signal modulated with a binary-phase-shift-keying (BPSK) or...

Dewetron USA, Wakefield, RI, has introduced the DEWE-43-V, an ultra-portable data acquisition system that includes eight 24-bit dynamic analog input channels with >100 dB dynamic range; eight...

A proposed heterodyne receiver would be capable of detecting electromagnetic radiation in both of two orthogonal linear polarizations, separating sidebands, and providing...

Briefs: Electronics & Computers
Modular Battery Charge Controller

A new approach to masterless, distributed, digital-charge control for batteries requiring charge control has been developed and implemented. This approach is required in battery chemistries that need...

Generic structures have been conceived for multiplexer blocks to be implemented in field-programmable gate arrays (FPGAs) based on four-gate field-effect transistors...

A system comprising very-large-scale integrated (VLSI) circuits is being developed as a means of bioinformatics-oriented analysis and recognition of patterns of fluorescence...

Videos