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Construction

Double-duty windows harvest solar energy

By / September 17, 2008

What if your house’s windows offered double-duty performance by not only letting in sunlight but also harvesting its energy to efficiently and cost-effectively power your home? That’s the concept behind the organic solar concentrator, a new kind of solar powering device, recently developed by MIT researchers and reported on in Science. “Light is collected over a large area…

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Sancon feeds China’s raw-material hunger with recycled glass

By / September 10, 2008

Shanghai-based Sancon Resources Recovery Inc. is a fast growing environmental services firm with operations in Australia and China. In 2007, the firm reportedly sold more than 25,000 tons of industrial waste – largely derived from plastic, cardboard and paper – to China’s ever-growing manufacturing market. Now Sancon has announced that it will develop glass-powder raw materials made from the recycled…

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Better method for detecting tile defects

By / September 10, 2008

Researchers at the University of the West of England say they have developed an automatic system for detecting surface defects invisible to the naked eye in ceramic tiles. Their system can detect pinholes, crazing, rough or dull glazes and other imperfections – even on tiles that are textured or feature relief patterns – the researchers say.…

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Collecting solar energy via asphalt roads

By / September 10, 2008

Can asphalt roads and parking lots be used as a ubiquitous and inexpensive means for collecting and utilizing solar energy? Researchers at Massachusetts’ Worcester Polytechnic Institute say: Yes. Led by Rajib Mallick, associate professor of civil and environmental engineering, a WPI research team says it has found a way to use asphalt’s heat-absorbing properties as…

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Concrete solutions to pollution

By / September 5, 2008

Every year, concrete accounts for more than five percent of human-created, pollution-causing carbon dioxide emissions, reports Technology Review, an online news source published by MIT. Most of these emissions are created because cement – the active ingredient in concrete – requires limestone and clay powders to be baked at extremely high temperatures, usually generated by…

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