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Greener disaster alerts: Low-energy wireless sensor networks warn of hurricanes, earthquakes

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TechAndComputer (July 12, 2011) — New software allows wireless sensor networks to run at much lower energy, according to researchers writing in the International Journal of Sensor Networks. The technology could improve efficiency for hurricane and other natural disaster warning systems.

Wireless sensor networks (WSNs) are used to monitor ecosystems, wild and urban environments. They have been vital in predicting events that threaten species and...

TechAndComputer (July 12, 2011) — New software allows wireless sensor networks to run at much lower energy, according to researchers writing in the International Journal of Sensor Networks. The technology could improve efficiency for hurricane and other natural disaster warning...

Smartphone app helps you find friends in a crowd

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TechAndComputer (June 23, 2011) — Can a smartphone app enable meaningful, face-to-face conversation? Engineers are trying to find out, with software that helps people locate their friends in a crowd -- and make new friends who share similar interests.

The software, called eShadow, makes its debut at the IEEE International Conference on Distributed Computing Systems (ICDCS) on June 23 in Minneapolis.

It uses nearby wireless networks and...

TechAndComputer (June 23, 2011) — Can a...

Tracking groundwater pollution to its source using computer algorithms

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TechAndComputer (June 22, 2011) — Computer algorithms might be useful in identifying sources of groundwater pollution, according to researchers in Australia and India. Writing in the International Journal of Environment and Waste Management, they explain how notoriously difficult it is to trace such pollution.

Groundwater is a major and economical source of drinking water for both urban and rural areas. Although groundwater represents a small...

TechAndComputer (June 22, 2011) — Computer...

Examining the brain as a neural information super-highway

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TechAndComputer (June 3, 2011) — An article demonstrating how tools for modeling traffic on the Internet and telephone systems can be used to study information flow in brain networks will be published in the open-access journal PLoS Computational Biology on 2nd June 2011.

The brain functions as a complex system of regions that must communicate with each other to enable everyday activities such as perception and cognition. This need for networked...

TechAndComputer (June 3, 2011) — An...

Researchers build largest biochemical circuit out of small synthetic DNA molecules

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TechAndComputer (June 3, 2011) — In many ways, life is like a computer. An organism's genome is the software that tells the cellular and molecular machinery -- the hardware -- what to do. But instead of electronic circuitry, life relies on biochemical circuitry -- complex networks of reactions and pathways that enable organisms to function. Now, researchers at the California Institute of Technology (Caltech) have built the most complex...

TechAndComputer (June 3, 2011) — In many ways, life...