Transit authority gets $1.6M for green upgrade

Lovejoy, Shelly talk green at forum
At an environmentally themed president candidates’ forum in Hard Rock Oct. 22, both Vice President Ben Shelly and New Mexico State Sen. Lynda Lovejoy came out in favor of alternative energy and against the recent proposed settlement of water rights in the Colorado River Basin.

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Enel Green Power IPO’s ‘Rich’ Price Deters Investors
Enel Green Power SpA is struggling to lure investors to its 3.4 billion-euro ($4.7 billion) initial public offering, Italy’s biggest in more than a decade, because they say the price is too high compared with competitors.

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Montoya tops in qualifying at Talladega
TALLADEGA, Ala.—Benefiting from an early qualifying draw, Juan Pablo Montoya sped around 2.66-mile Talladega Superspeedway in 51.863 seconds (184.640 mph) Saturday to win the Coors Light Pole Award for Sunday’s Amp Energy Juice 500.

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Juan Pablo Montoya wraps up pole position at Talladega
Juan Pablo Montoya has won the pole for Sunday’s race at Talladega Superspeedway. Montoya’s lap at 184.640 mph in Saturday’s qualifying put his …

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Transit authority gets $1.6M for green upgrade
FITCHBURG – Montachusett Regional Transit Authority has been awarded more than $1.6 million for green transportation improvements through the Federal Transit Administration’s Investments for Greenhouse Gas and Energy Reduction, or TIGGER II, program.

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Shares of battery maker A123 jump after upgrade

Power outages hit Mid-Atlantic after storm; 4 dead
WASHINGTON (AP) – It could take days to restorepower to hundreds of thousands of people around Washington after a storm downed power lines and trees and left four people dead, officials said Monday.

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Hope amid the acacias: A neurosurgeon finds love in Africa and a new job in Charleston.
Dilan Ellegala returns to the tiny bush town of Haydom in the summer of 2007, Tanzania’s dry season, when the sun scorches the fields of maize and sunflowers, and the air fills with clouds of fine red dust. Ellegala greets the staff of Haydom Lutheran Hospital like old friends, including the medical technician, Emmanuel Mayegga, the man he trained to do brain surgery during his first visit the …

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Mr Keneally chases pay day from car policy
The husband of the Premier, Kristina Keneally, owns $185,000 worth of shares in a company that is lobbying the state government over its electric car policy.

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America Now: Friends and Neighbors
Ann Curry travels to the very heart of America, where the need is especially urgent and the stories especially poignant. She brings us a very personal look inside the lives of families who’ve had it all vanish — jobs, then homes, then dreams.

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Shares of battery maker A123 jump after upgrade
* Barclays Capital raises ratings on stock to “overweight”

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Hybrid Electric Vehicle Power Systems Receive Major Upgrade

 

Hybrid Electric Vehicle Power Systems Receive Major Upgrade

A leading company specializing in the design and production of materials for electronic thermal management, now uses AlSiC (Aluminum Silicon Carbide), a metal matrix composite ideally matched for base plates material for insulated gate bipolar transistor (IGBT), used in power control, high-power traction, fly-by-wire applications, and Hybrid Electric Vehicle power systems.

The low isotropic coefficient of thermal expansion (CTE) value of AlSiC-9 (8 ppm/°C: 30 – 100°C) is compatible with the thermal expansion value of the substrate or die used in IGBT power modules. The AlSiC CTE match lowers the mechanical stresses on IGBT die and substrates that are introduced by thermal power cycling, improving dependability of substrate attachment and reducing die cracking failures.

The device compatible AlSiC CTE removes the need for stress compensation material layers which are required in Copper (CTE = 17ppm/°C) baseplate assemblies. Removal of stress compensation materials simplifies baseplate assembly and decreases thermal resistance for AlSiC systems, meaning AlSiC systems have equal or improved thermal dissipation over Copper baseplate assemblies.

In high power applications (> 1200 V/ 400 A), IGBT modules assembled with AlSiC baseplates are found to have a service reliability of many times more thermal power cycles over Copper equivalent systems.

AlSiC is a lightweight material (1/3 that of Copper), which makes it an ideal cooler material for the weight-sensitive IGBT applications. AlSiC has higher strength and stiffness than Copper, which, combined with its lightweight nature, makes AlSiC assemblies more tolerant to shock and vibration.

The CPS AlSiC near net-shape fabrication process both produces the composite material and fabricates the product geometry, creating the design of IGBT base plates with a dome profile. This geometry improves thermal interface contact with cold plates and coolers. CPS fabricates standard of 190 mm x 140 mm, 140 mm x 130 mm and 140 mm x 70 mm base plate formats (shown) as well as custom formats.

 

Electric Rc Car: Practical Rtr Upgrade Strategies

Product Description
This book primarily covers hobby-grade on/off road RTR electric R/C cars. Information presented is intended for beginners and intermediate users who want to upgrade their R/C cars cost effectively for the purposes of enjoyment and elementary-level racing.