Monday February 19, 2018
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Power cost will be hiked in Bihar by 2.5 per cent from April

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By Newsgram Staff Writer

Residents of Bihar will have to pay more for electricity from April 1 as the state`s power regulator announced a 2.5 percent increase in the tariff on Monday.

The increase will be more for urban residents, who will have to pay 15 paise more per unit as compared to the rural residents for whom the increase will be of 10 paise per unit.

The rise in prices have been approved to bridge the gap of losses, Bihar Electricity Regulatory Commission (BERC) chairman UN Panjiar said. He also said that the hike was kept modest to not increase the burden on the people too much.

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Your body could soon power wearable devices

The study described a small tab (1.5 centimetres long, by one centimetre wide). It delivered a maximum voltage of 124 volts, a maximum current of 10 microamps and a maximum power density of 0.22 millwatts per square centimetre.

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The tab consists of two thin layers of gold, with polydimethylsiloxane (also called PDMS — a silicon-based polymer used in contact lenses, Silly Putty and other products) sandwiched in between. Wikimedia Commons
The tab consists of two thin layers of gold, with polydimethylsiloxane (also called PDMS — a silicon-based polymer used in contact lenses, Silly Putty and other products) sandwiched in between. Wikimedia Commons

Researchers have developed a metallic tab which, when connected to a human body, is capable of generating electricity from bending a finger and other simple movements.

According to a research project led by the University at Buffalo, New York, and Institute of Semiconductors (IoP) at the Chinese Academy of Science (CAS), the tab — a triboelectric nanogenerator — can convert mechanical energy into electrical energy for electronic devices.

“The human body is an abundant source of energy. We thought: ‘Why not harness it to produce our own power?’” said lead author Qiaoqiang Gan, associate professor at the University at Buffalo.

The tab was detailed in the journal Nano Energy. Triboelectric charging occurs when certain materials become electrically charged after coming into contact with a different material. Most everyday static electricity is triboelectric.

Also Read: Scientists Use Pocket-size Device to Map Human Genetic Code

The tab consists of two thin layers of gold, with polydimethylsiloxane (also called PDMS — a silicon-based polymer used in contact lenses, Silly Putty and other products) sandwiched in between.

The tab was detailed in the journal Nano Energy. Wikimedia Commons
The tab was detailed in the journal Nano Energy. Wikimedia Commons

One layer of gold is stretched, causing it to crumple upon release and create what looks like a miniature mountain range. When that force is reapplied, for example, from a finger bending, the motion leads to friction between the gold layers and PDMS.

“This causes electrons to flow back and forth between the gold layers. The more friction, the greater the amount of power is produced,” said Yun Xu, a professor at the IoP.

The study described a small tab (1.5 centimetres long, by one centimetre wide). It delivered a maximum voltage of 124 volts, a maximum current of 10 microamps and a maximum power density of 0.22 millwatts per square centimetre.

Also Read: Mitra: An Indian Robot That Greets You With A ‘Namaste’

That is not enough to quickly charge a smartphone, but it lit 48 red LED lights simultaneously. The team is planning to use larger pieces of gold, which when stretched and folded together are expected to deliver even more electricity.

The researchers are also working on developing a portable battery to store energy produced by the tab. They envision the system serving as a power source for various wearable and self-powered electronic devices. (IANS)

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