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Engineering Phase Changes in Nanoparticle Arrays

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Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have just taken a big step toward the goal of engineering dynamic nanomaterials whose structure and associated properties can be switched on demand. In a paper appearing in Nature Materials, they describe a way to selectively rearrange the nanoparticles in three-dimensional arrays to produce different configurations, or phases, from the same nano-components.

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Trending Stories Report for 22 May 2015

Trending news releases with the most views in a single day. Topics include: swelling magnets; using genetics to fight dengue fever; cybersecurity; Hubble finds 'Nasty' star; ventilation and patient survival; food security; gamification in business; and cancer research on implants to improve glioma treatment.

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Turn That Defect Upside Down

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Most people see defects as flaws. A few Michigan Technological University researchers, however, see them as opportunities. Twin boundary defects may present an opportunity to improve lithium-ion batteries.

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Bat-Inspired Dynamic Sonar Unveiled at Acoustical Society

Virginia Tech researchers have developed a prototype of a dynamic sonar system inspired by horseshoe bats. The prototype was presented Wednesday (May 20) at the Acoustical Society of America meeting in Pittsburgh.

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A Virtual Twin: Can Virtual Drivers Resembling the User Increase Trust in Smart Cars?

Can the use of a virtual drivers programmed to resemble humans increase the level of trust and acceptance in smart cars?

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Tunable Liquid Metal Antennas

Researchers have held tremendous interest in liquid metal electronics for many years, but a significant and unfortunate drawback slowing the advance of such devices is that they tend to require external pumps that can't be easily integrated into electronic systems. So a team of North Carolina State University researchers set out to create a reconfigurable liquid metal antenna controlled by voltage only, which they describe this week in the Journal of Applied Physics.

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Computing at the Speed of Light

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Utah engineers have developed an ultracompact beamsplitter — the smallest on record — for dividing light waves into two separate channels of information. The device brings researchers closer to producing silicon photonic chips that compute and shuttle data with light instead of electrons.

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Trending Stories Report for 15 May 2015

Trending news releases with the most views in a single day. Topics include: social media trends, lyme disease, cancer, diabetes, HIV, lasers, Hubble, neurology, and the seafood industry.

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Drexel Univ. Civil Engineering Expert Available to Comment on Amtrak Derailment

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Tests with Sandia's Davis Gun Aid B61-12 Life Extension Effort

Sandia National Laboratories has successfully completed a three-test series using its cannon-like Davis gun.