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Wednesday, July 23, 2014

ScienceDaily: Engineering and Construction News

ScienceDaily: Engineering and Construction News


Technique simplifies creation of high-tech crystals

Posted: 22 Jul 2014 10:07 AM PDT

Highly purified crystals that split light with uncanny precision are key parts of high-powered lenses, specialized optics and, potentially, computers that manipulate light instead of electricity. But producing these crystals by current techniques, such as etching them with a precise beam of electrons, is often extremely difficult and expensive. Now, researchers have proposed a new method that could allow scientists to customize and grow these specialized materials, known as photonic crystals, with relative ease.

Law of physics governs airplane 'evolution': Constructal law explains progression of passenger jets, sets guidelines for future aircraft

Posted: 22 Jul 2014 08:18 AM PDT

Scientists have found that a law of physics predicts the evolution of commercial airliners and also provides guidelines for future designs.

Self-cooling solar cells boost power, last longer

Posted: 22 Jul 2014 07:22 AM PDT

Scientists may have overcome one of the major hurdles in developing high-efficiency, long-lasting solar cells -- keeping them cool, even in the blistering heat of the noonday sun. By adding a specially patterned layer of silica glass to the surface of ordinary solar cells, a team of researchers has found a way to let solar cells cool themselves by shepherding away unwanted thermal radiation.

Scientists use simple, low cost laser technique to improve properties and functions of nanomaterials

Posted: 22 Jul 2014 06:14 AM PDT

By 'drawing' micropatterns on nanomaterials using a focused laser beam, scientists could modify properties of nanomaterials for effective applications in photonic and optoelectric applications.

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