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Thursday, July 4, 2013

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News

Alternative energy: A cooler way to clean hydrogen

Posted: 03 Jul 2013 08:34 AM PDT

Converting bioethanol into hydrogen for fuel cells becomes significantly simpler with innovative metal catalysts.

Computer programs improve fingerprint grading

Posted: 03 Jul 2013 07:55 AM PDT

Subjectivity is problematic when evaluating fingerprints, and quality is in the eye of the examiner. But three computer programs used together can give fingerprint grading unprecedented consistency and objectivity, according to new research.

Thin-film diamonds: Applying diamond coatings at lower temperatures expands options for electronic devices

Posted: 03 Jul 2013 07:55 AM PDT

Scientists report a new method for creating thin films of diamonds. This may allow manufacturers to enhance future electronics.

New catalyst replaces platinum for electric-automobiles

Posted: 03 Jul 2013 07:14 AM PDT

Scientists have developed a novel bio-inspired composite electrocatalyst outperforming platinum.

Tiny tweezers allow precision control of enzymes

Posted: 03 Jul 2013 07:14 AM PDT

Scientists have developed a pair of tweezers shrunk down to an astonishingly tiny scale. The group demonstrated that the nanotweezers, fabricated by means of the base-pairing properties of DNA, could be used to keep biological molecules spatially separated or to bring them together as chemical reactants, depending on the open or closed state of the tweezers.

New knowledge about early galaxies

Posted: 03 Jul 2013 07:14 AM PDT

The early galaxies of the universe were very different from today's galaxies. Using new detailed studies carried out with the ESO Very Large Telescope and the Hubble Space Telescope, researchers have studied an early galaxy in unprecedented detail and determined a number of important properties such as size, mass, content of elements and have determined how quickly the galaxy forms new stars.

World record in silicon integrated nanophotonics: More energy efficiency in the data communication

Posted: 03 Jul 2013 07:13 AM PDT

Researchers have achieved a new world record in the energy efficient integration in silicon. This is an important step to decrease the energy consumption of data transfer in internet and telecommunication. The researchers optimized aperiodic grating couplers in the nanometer range with a new developed backside metal mirror. Through this new method a record coupling efficiency of 87 percent between optical fibers and photonic integrated waveguides on silicon wafers has been achieved.

Graphene provides efficient electronics cooling

Posted: 03 Jul 2013 07:10 AM PDT

A layer of graphene can reduce the working temperature in hotspots inside a processor by up to 25 percent – which can significantly extend the working life of computers and other electronics. Scientists have now shown that graphene has a heat dissipating effect on silicon based electronics.

New method to generate Laughlin states with atomic systems

Posted: 03 Jul 2013 07:10 AM PDT

In 1998, the Nobel Prize in Physics was conferred to the discovery of a new type of quantum fluid with fractional charge excitations, known as Laughlin state. The production of this quantum state, which explains the behaviour of electrons in two-dimensional metallic plaques when they are exposed to intense magnetic fields, has been one of the most popular research topics on ultracold and Bose-Einstein condensed atoms for one decade. Now, new theoretical research proposes a method to generate this kind of states in two-dimensional systems of ultracold atoms, with possible applications in quantum computer.
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