Gallium Arsenide and Gallium Nitride are preferred for LEDs, certain photovoltaics, and some very high frequency radio applications.
Recent discoveries, however, have such medgadgets being powered by photons, hip hop and now high-frequency radio waves.
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It is designed to detect the low-frequency radio pulses emitted by lightning strikes.
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Disturbance to satellite and high-frequency radio communications would cause them problems, also.
Not all planes across oceans have data-link capabilities, and high-frequency radio is still used with some flights and as a backup with others.
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For decades, controllers relied on position reports over high-frequency radio every hour or so, competing for air time with fishing vessels and all kinds of other traffic.
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Although they have not been found to cause any harm, the cables on conventional pylons, which transmit a three-phase alternating current, generate a strong electric field and a continuous buzz of low-frequency radio waves.
Extrapolating from Dr Freund's laboratory experiments, the strain in a real-life geological fault such as the San Andreas could, as it shifted, generate hundreds of thousands of amperes per cubic kilometre in a fluctuating pattern that would cause very low frequency radio waves to be emitted, thus disrupting the ionosphere.
It's always nice to see an old tech stage a comeback and this time it's happening around the coasts of Europe, with nine low-frequency radio transmitters substituting for GPS' satellite-based system. eLoran's radiowave-based system is stronger than satellite signals and less jammable, based on the Loran system that was previously used for shipping navigation by both the British and US navy over 50 years ago.
This frequency is close to the lower band of the highest radio frequency band known as extremely high frequency which goes from 30 to 300 GHZ.
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Radio frequency identification and tracking technology were undreamt of just a few years ago.
Shepherds in Norway use one to create radio frequency id tags to track sheep.
Its state-of-the-art radio frequency (RF) performance exceeds requirements established by EMVCo and the NFC Forum.
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In the future, the product line will also include high-speed radio frequency and power-line connectivity solutions.
They also plan to deploy more Radio Frequency ID (RFID) technology throughout their operations to manage inventory.
The company produces more than 15, 000 standard products, including amplifiers, data converters, and low-power radio frequency devices.
"We have explored various methods, ranging from radio frequency energy harvesting to solar power, " he told BBC News.
D. became a leading center of RFID (radio frequency identification) research and how Cornell University in little Ithaca, N.
CowView uses a type of RFID (radio frequency identification) called UWB (ultra-wideband) technology.
Additional applications will likely include lasers, radio frequency weapons and particle beam weapons.
More parts are coming with radio frequency ID (RFID) tags to automatically alert airlines and manufacturers of a problem.
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When her daughter researched treatments online, they asked to be referred for a treatment called radio frequency ablation (RFA).
Last year the best-performing short was Endwave, which makes radio frequency identification systems.
Instead of price tags, we could have radio frequency identification tags that calculate price as you touch the item.
Products include respirators, surveillance equipment, radio frequency identification equipment, insulation, weatherproofing materials, cleaning products, mats, and granules for asphalt shingles.
The D5200 is also compatible with a new wireless radio frequency remote accessory, the WR-R10 and WR-T10 Wireless Remote Controllers.
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This year his mum might be persuaded to upgrade him to pair of RFID (radio frequency identification) tagged Smarter Socks.
"As you know, many of the law enforcement agencies in Atlanta are not on the same radio frequency, " he said.
The radiation just spread out into space - where it still is and can be detected as weak waves of radio frequency.
Deployment of radio frequency identification (RFID) chips, after years of hype and more than a few false starts, gets going in earnest.
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