Tech Gadget Reviews

Internet usage patterns may signify depression

ScienceDaily: Software News — Wed, 16 May 2012 17:55:55 +0000

In a new study analyzing Internet usage among college students, researchers have found that students who show signs of depression tend to use the Internet differently than those who show no symptoms of depression.

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Full control of plastic transistors

ScienceDaily: Technology News — Wed, 16 May 2012 13:30:30 +0000

Transistors made of plastic can be controlled with great precision, according to a new article.

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Elusive capacity of networks: Calculating data network’s total capacity notoriously difficult, but theorists making some headway

ScienceDaily: WiFi News — Tue, 15 May 2012 20:53:53 +0000

In its early years, information theory was dominated by research on error-correcting codes: How do you encode information so as to guarantee its faithful transmission, even in the presence of the corrupting influences engineers call "noise"? Recently, one of the most intriguing developments in information theory has been a different kind of coding, called network coding, in which the question is how to encode information in order to maximize the capacity of a network as a whole. For information theorists, it was natural to ask how these two types of coding might be combined: If you want to both minimize error and maximize capacity, which kind of coding do you apply where, and when do you do the decoding?

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Getting in tune: Researchers solve tuning problem for wireless power transfer systems

ScienceDaily: Technology News — Tue, 15 May 2012 14:46:46 +0000

Researchers have developed a new way to fine-tune wireless power transfer (WPT) receivers, making the systems more efficient and functional. WPT systems hold promise for charging electric vehicles, electronic devices and other technologies.

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Beyond the high-speed hard drive: Topological insulators open a path to room-temperature spintronics

ScienceDaily: Technology News — Tue, 15 May 2012 13:41:41 +0000

Theorists and experimenters have explored the unique properties of topological insulators, where electrons may flow on the surface without resistance, with spin orientations and directions intimately related. Recent research opens exciting prospects for practical new room-temperature spintronic devices that can exploit control of electron spin as well as charge.

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New research could mean faster computers and better smart phones

ScienceDaily: Technology News — Tue, 15 May 2012 09:23:23 +0000

Graphene and carbon nanotubes could improve the electronics used in computers and mobile phones, reveals new research.

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Dip chip technology tests toxicity on the go

ScienceDaily: Mobile Computing News — Mon, 14 May 2012 17:42:42 +0000

Researchers have developed a portable "dip chip" that detects water toxicity quickly and accurately. Once perfected, the chip might be plugged into ordinary smartphones or PDA devices to provide a toxicity alert.

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Floating robots use GPS-enabled smartphones to track water flow

ScienceDaily: Mobile Computing News — Mon, 14 May 2012 14:50:50 +0000

A fleet of 100 floating robots took a trip down the Sacramento River on May 9, in a field test. The devices, equipped with GPS-enabled smartphones, demonstrated the next generation of water-monitoring technology, promising to transform the way government agencies track one of the state's most precious resources.

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New ultra-thin electronic films have greater capacity

ScienceDaily: Technology News — Fri, 11 May 2012 16:20:20 +0000

The development of a new combination of polymers associating sugars with oil-based macromolecules makes it possible to design ultra-thin films capable of self-organization with a 5-nanometer resolution. This opens up new horizons for increasing the capacity of hard discs and the speed of microprocessors.

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GPS for interior spaces: Navigating the shopping center

ScienceDaily: Technology News — Fri, 11 May 2012 14:13:13 +0000

With a GPS receiver in your smartphone, you can navigate your way over highways and streets with certainty. But once you get inside a building, it provides no further assistance. That’s why researchers have engineered a navigation system for interior spaces. Thanks to a clever combination of sensors, the module tracks the movements and position of its user in precise detail.

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