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Silicon nanowires trap sunlightSilicon nanowires trap sunlight

Solar cells made from silicon are projected to be a prominent factor in future renewable green energy equations, but so far the promise has far exceeded the reality. While there are now silicon photovoltaics that can convert sunlight into electricity at impressive 20% efficiencies, the cost of this solar power is prohibitive for large-scale use. Researchers with the Lawrence Berkeley National Laboratory (Berkeley Lab), however, are developing a new approach that could substantially reduce these costs.

Developing a helicopter that would investigate nuclear disasters

Developing a helicopter that would investigate nuclear disasters

Students at Virginia Tech’s Unmanned Systems Laboratory are perfecting an autonomous helicopter they hope will never be used for its intended purpose. Roughly six feet long and weighing 200 pounds, the re-engineered aircraft is designed to fly into American cities blasted by a nuclear weapon or dirty bomb.

Heat exchanger tech crucial to new automotive hydrogen storage system

Heat exchanger tech crucial to new automotive hydrogen storage system

A patent has been filed by Purdue engineers for a heat exchanger that uses standard automotive coolant to help shed heat created by a metal-hydride-based hydrogen storage system. The great thing about metal hydrides is that pressure changes can release hydrogen for fuel, but the heat generated by absorption can drastically slow refueling.

Several Nebraska dealers being reinstated by GM

General Motors is reinstating several Nebraska car dealers, but the company is not releasing a list of the dealers so it's not clear how many will be included.GM said last week that it planned to reinstate 661 of the roughly 1,100 dealers it tried to drop from its sales network last year. The...

Sonic to sell notes to retire higher-interest debt

Auto dealership group Sonic Automotive Inc. will offer up to $210 million in senior subordinated notes to institutional buyers, the company said Tuesday.Proceeds from the sale will cover paying back part of the company's 8 5/8 percent notes that are due in 2013, Sonic said in a statement.The...

Green Mountain Coffee extends tender offer again

Green Mountain Coffee Roasters said Tuesday that it has again extended a tender offer as it attempts to buyout Diedrich Coffee.The offer by Green Mountain subsidiary Pebbles Acquisition Sub Inc., which was set to expire on Monday, has been extended until April 5. The 20-day extension is the...

Court denies review of uranium mining permit in NM

A federal appeals court has upheld a Nuclear Regulatory Commission decision that allows a company to leach uranium at an aquifer that supplies drinking water to thousands of Navajos in northwestern New Mexico.A 10th U.S. Court of Appeals panel concluded in a 2-1 opinion Monday that the NRC took...

Automakers end fight against Colo. car dealer bill

General Motors Co. and Chrysler Group LLC are dropping their fight against a bill aimed at helping Colorado auto dealers whose businesses were dropped by the struggling automakers.They changed their stance after winning some concessions backed by the Colorado Senate on Monday.The bill would...

Brazil's president says he hasn't decided which fighter jets his nation will buy

Brazil's president says his government has yet to decide which fighter jets his nation will buy.In his weekly newspaper column, Luiz Inacio Lula da Silva says the decision will be based on what is best militarily, economically and politically for Brazil.The Rafale jet from France's Dassault is...

Continental CEO will cancel flights before fines

Continental Airlines plans to cancel flights rather than risk stiff fines under new federal rules designed to punish carriers for delaying passengers.CEO Jeff Smisek says that the airline will cancel flights that might be delayed three hours.Under a federal rule taking effect next month,...

Next wave of microelectronic biomedical devices

Next wave of microelectronic biomedical devices

A team of  engineers from MIT’s Microsystems Technology Laboratory (MTL) are working on tiny, low-power chips that could diagnose heart problems, monitor patients with Parkinson’s disease or predict seizures in epileptic patients.

Miss. officials decry loss of tanker contract

Mississippi officials expressed both disappointment and disgust with a Pentagon process that prompted Northrop Grumman Corp. to drop out of the competition for an Air Force refueling tanker contract.The Northrop proposal had set off a celebration along the Mississippi Gulf Coast and the Mobile,...

SkyWest traffic jumps 11.6 percent in February

SkyWest Inc., which operates SkyWest Airlines and Atlantic Southeast Airlines, said Tuesday its traffic jumped 11.6 percent in February on a similar uptick in available seats.The carrier recorded 1.34 billion revenue passenger miles in February, compared with 1.2 billion the same month a year...

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Lunar tires, space MRSA, and resonating microfluidics

Lunar tires, space MRSA, and resonating microfluidics

I typically attend the annual Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy each year in pursuit of specific coverage. This year, I sought out candidates for coverage in a vacuum technology article, and pulled together some instruments for a spectroscopy guide. But as busy as that kept me, it wasn’t all mass spectrometers and vacuum pumps on the show floor.  

A clean energy America…is it coming or not?

A clean energy America…is it coming or not?

Almost a year ago, the buzz during the downturn was that the economic stimulus will help boost jobs in a sort of national improvement program reminiscent of the 1930s. Our coal would be phased out. Our grids would get smart. Our cars would get hybridized.

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New JEOL TEM quickly breaks into picoscale territory

 Just three weeks after its installation at the Univ. of Texas San Antonio campus, the latest transmission electron microscope from JEOL delivered data on silicon samples that resolved down to 78 picometers, a level that enables atom-by-atom chemical mapping.

Sigma-Aldrich teams with 3M to provide high-performance organic semiconductor

TIPS Pentacene, a soluble organic semiconductor for printed and flexible electronics, is manufactured by 3M under the name 3M Organic Electronics Semiconductor L-20856 and is the first in a family of soluble Pentacene-based semiconductors developed by 3M Electronics Markets Materials Division in collaboration with Dr. John Anthony, professor at the Univ. of Kentucky and founder of Outrider Technologies LLC.

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Hydrophilic PTFE filters for microelectronics manufacturing

W. L. Gore & Associates (Gore) has added hydrophilic PTFE filters to its expanding line of cartridge filters for bulk high-purity chemicals used in microelectronics manufacturing, including LCD, semiconductor, hard disk drive, and photovoltaic.

Linear stages for accurate motion

Aerotech’s PRO Series are side seal, hard cover, ball-screw-driven linear stages available in 68 standard models with travels from 50 mm to 1500 mm Their rugged design makes them suited for demanding industrial environments.

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