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The makings of a Hund's metal

In atomic physics, Hund's rules refers to a set of guidelines which are used to determine the term symbol that corresponds to the ground state of a multi-electron atom.

Posted: Nov 10th, 2015

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Clay makes better high-temp batteries

A unique combination of materials, including a clay-based electrolyte, may solve a problem for rechargeable lithium-ion batteries destined for harsh environments.

Posted: Nov 10th, 2015

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Ultra-thin, tunable, broadband microwave absorber may advance radar cloaking

Researchers have developed an ultra-thin, tunable broadband microwave absorber for ultra-high frequency applications. This ultra-thin absorbing surface, called an active frequency-selective surface absorber, consists of arrays of patterned conductors loaded with two common types of circuit elements known as resistors and varactors.

Posted: Nov 10th, 2015

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Sea urchin spurs new ideas for lightweight materials

Materials researchers love sea creatures. Mother-of-pearl provokes ideas for smooth surfaces, clams inspire gluey substances, shark's skin is used to develop materials that reduce drag in water, and so on. Researchers have now found a model for strong, lightweight materials by diving below the sea surface to investigate a sea urchin cousin known as the heart urchin.

Posted: Nov 10th, 2015

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Hydrogel superglue is 90 percent water

Engineers have developed a method to make synthetic, sticky hydrogel that is more than 90 percent water. The hydrogel, which is a transparent, rubber-like material, can adhere to surfaces such as glass, silicon, ceramics, aluminum, and titanium with a toughness comparable to the bond between tendon and cartilage on bone.

Posted: Nov 10th, 2015

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Researchers find way to make metals stronger without sacrificing ductility

Scientists have developed a technique to make titanium stronger without sacrificing any of the metal's ductility - a combination that no one has achieved before. The researchers believe the technique could also be used for other metals, and the advance has potential applications for creating more energy-efficient vehicles.

Posted: Nov 9th, 2015

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Advance could bring commercial applications for silver nanowires

Silver nanowires hold promise for applications such as flexible displays and solar cells, but their susceptibility to damage from highly energetic UV radiation and harsh environmental conditions has limited their commercialization. New research suggests wrapping the nanowires with an ultrathin layer of carbon called graphene protects the structures from damage and could represent a key to realizing their commercial potential.

Posted: Nov 9th, 2015

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A new way to look at metal organic frameworks

An international collaboration of scientists has developed a technique they dubbed 'gas adsorption crystallography' that provides a new way to study the process by which metal-organic frameworks (MOFs) are able to store immense volumes of gases such a carbon dioxide, hydrogen and methane. This new look at MOFs led to a discovery that holds promise for the improved design of MOFs tailored specifically for carbon capture, or for the use of hydrogen and natural gas fuels.

Posted: Nov 9th, 2015

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Nanobodies from camels enable the study of organ growth

Scientists have developed a new technique using nanobodies. Employing the so-called 'Morphotrap', the distribution of the morphogen Dpp, which plays an important role in wing development, could be selectively manipulated and analyzed for the first time in the fruit fly.

Posted: Nov 9th, 2015

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Conducting gels - from waste to wealth

Researchers have demonstrated an innovative way of using a gel to extract precious metals such as silver and gold from waste and convert them into conducting nanoparticles to form a hybrid nanomaterial potentially suitable for a range of high-tech applications.

Posted: Nov 9th, 2015

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