Tag Archives | Mobile Computing
New Technique for Generating Electricity

New Technique for Generating Electricity

Research scientists at VTT Technical Research Centre of Finland have demonstrated a new technique for generating electrical energy. The new method can be used in harvesting energy from mechanical vibrations of the environment and converting it into electricity. Energy harvesters are needed, for example, in wireless self-powered sensors and medical implants, where they could ultimately [...]

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Accuracy of Mobile Phone Population Mapping Demonstrated

Accuracy of Mobile Phone Population Mapping Demonstrated

A study by an international team, including the University of Southampton, has shown population maps based on anonymous mobile phone call record data can be as accurate as those based on censuses.   Their findings show maps made using mobile records are detailed, reliable and flexible enough to help inform infrastructure and emergency planners; particularly [...]

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Circuits That Melt Away When You’re Done

Circuits That Melt Away When You’re Done

Electronic devices that dissolve completely in water, leaving behind only harmless end products, are part of a rapidly emerging class of technology pioneered by researchers at the University of Illinois at Urbana-Champaign. Early results demonstrate the entire complement of building blocks for integrated circuits, along with various sensors and actuators with relevance to clinical medicine, [...]

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Talking to Your Car Is Often Distracting

Talking to Your Car Is Often Distracting

Two new AAA-University of Utah studies show that despite public belief to the contrary, hands-free, voice-controlled automobile infotainment systems can distract drivers, although it is possible to design them to be safer.   “Even though your car may be configured to support social media, texting and phone calls, it doesn’t mean it is safe to [...]

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Physicist Turns Smartphones Into Pocket Cosmic Ray Detectors

Physicist Turns Smartphones Into Pocket Cosmic Ray Detectors

Soon, the growing capability of your smartphone could be harnessed to detect cosmic rays in much the same way as high-end, multimillion-dollar observatories.   With a simple app addition, Android phones, and likely other smartphone brands in the not-too-distant future, can be turned into detectors to capture the light particles created when cosmic rays crash [...]

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Prolonged Power in Mobile Devices

Prolonged Power in Mobile Devices

Researchers from The University of Texas at Dallas have created technology that could be the first step toward wearable computers with self-contained power sources or, more immediately, a smartphone that doesn’t die after a few hours of heavy use.   This technology, published online in Nature Communications, taps into the power of a single electron [...]

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Blue LED Breakthrough for Efficient Electronics

Blue LED Breakthrough for Efficient Electronics

In a step that could lead to longer battery life in smartphones and lower power consumption for large-screen televisions, researchers at the University of Michigan have extended the lifetime of blue organic light emitting diodes by a factor of 10.   Blue OLEDs are one of a trio of colors used in OLED displays such [...]

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Future Flexible Electronics Based on Carbon Nanotubes

Future Flexible Electronics Based on Carbon Nanotubes

Researchers from the University of Texas at Austin and Northwestern University have demonstrated a new method to improve the reliability and performance of transistors and circuits based on carbon nanotubes (CNT), a semiconductor material that has long been considered by scientists as one of the most promising successors to silicon for smaller, faster and cheaper [...]

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First Water-Based Nuclear Battery Can Be Used to Generate Electrical Energy

First Water-Based Nuclear Battery Can Be Used to Generate Electrical Energy

From cell phones to cars and flashlights, batteries play an important role in everyday life. Scientists and technology companies constantly are seeking ways to improve battery life and efficiency. Now, for the first time using a water-based solution, researchers at the University of Missouri have created a long-lasting and more efficient nuclear battery that could [...]

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Electronics That Need Very Little Energy?

Electronics That Need Very Little Energy?

A team of researchers has discovered a way to cool electrons to -228 °C without external means and at room temperature, an advancement that could enable electronic devices to function with very little energy.   A chip, which contains nanoscale structures that enable electron cooling at room temperature, is pictured. The process involves passing electrons [...]

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