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News tagged with spectrum

Researchers use flexible channel width to improve user experience on wireless systems

Researchers from North Carolina State University have developed a technique to efficiently divide the bandwidth of the wireless spectrum in multi-hop wireless networks to improve operation and provide all users in the network ...

Technology / Telecom

created 4 hours ago | popularity 5 / 5 (1) | comments 0 | with audio podcast

Novel holographic antenna designs and uses

Holographic antennas first studied around 40 years ago are again a hot topic given the potential of holographic images for a variety of applications. EU researchers developed novel prototype devices based ...

Technology / Engineering

created May 30, 2012 | popularity not rated yet | comments 0

Famed US alien seeker shifts gaze back to Earth

After decades spent scanning the heavens for signs of life elsewhere in the cosmos, astronomer Jill Tarter is stepping back, and letting a colleague take charge of the quest.

Space & Earth / Space Exploration

created May 22, 2012 | popularity 5 / 5 (4) | comments 13

T-ray madness: Scientists score wireless data record

(Phys.org) -- Wednesday headlines trumpeted how "Japanese researchers smash Wi-Fi records" and "Scientists show off the future of Wi-Fi." The excitement is for good reason. A team of scientists have broken ...

Technology / Telecom

created May 16, 2012 | popularity 4.9 / 5 (16) | comments 9 | with audio podcast weblog

Technology accessibility is improving, but big challenges lie ahead

When the iPad debuted two years ago, there was lots of talk about whether people beyond the iPhone and Mac faithful would use such a thing.

Technology / Other

created May 16, 2012 | popularity not rated yet | comments 0

Metal oxides hold the key to cheap, green energy

Harnessing the energy of sunlight can be as simple as tuning the optical and electronic properties of metal oxides at the atomic level by making an artificial crystal or super-lattice 'sandwich' says a Binghamton ...

Nanotechnology / Nanomaterials

created Apr 19, 2012 | popularity 4.9 / 5 (10) | comments 0 | with audio podcast

Verizon to auction spectrum worth billions

Verizon Wireless on Wednesday said it will auction a parcel of radio frequencies, which could be worth billions of dollars in an industry scrambling to offer consumers more cellular broadband.

Technology / Telecom

created Apr 18, 2012 | popularity not rated yet | comments 2

New research could mean cell phones that see through walls

Comic book hero superpowers may be one step closer to reality after the latest technological feats made by researchers at UT Dallas. They have designed an imager chip that could turn mobile phones into devices ...

Physics / General Physics

created Apr 18, 2012 | popularity 4.5 / 5 (15) | comments 13 | with audio podcast

Whether grasping Easter eggs or glass bottles -- this robotic hand uses tact

Researchers at Saarland University together with associates in Bologna and Naples have developed a robotic hand that can accomplish both tasks with ease and yet including the actuators is scarcely larger than ...

Electronics / Robotics

created Mar 30, 2012 | popularity 5 / 5 (7) | comments 0

Nasa sees fields of green spring up in Saudi Arabia

(PhysOrg.com) -- Saudi Arabia is drilling for a resource possibly more precious than oil.

Space & Earth / Earth Sciences

created Mar 30, 2012 | popularity 4 / 5 (5) | comments 5

The MIRI infrared instrument has two faces

A short new video takes viewers behind the scenes with the MIRI or the Mid-Infrared Instrument that will fly on-board NASA's James Webb Space Telescope. MIRI is a state-of-the-art infrared instrument that ...

Space & Earth / Space Exploration

created Mar 29, 2012 | popularity 5 / 5 (4) | comments 0

Govt IDs more airwaves for commercial wireless

(AP) -- The federal government wants to alleviate data congestion on smartphones and other mobile devices by asking the Defense Department, NASA and other agencies to switch to new locations on the airwaves or share their ...

Technology / Telecom

created Mar 27, 2012 | popularity not rated yet | comments 3

Researchers develop new technique to assess diversity of plant species from afar

By analyzing vegetation information collected by satellites over time instead of for just one day, scientists in the Michigan State University Center for Systems Integration and Sustainability (CSIS) have ...

Biology / Ecology

created Mar 23, 2012 | popularity 5 / 5 (2) | comments 0

New antibiotic could make food safer and cows healthier

Food-borne diseases might soon have another warrior to contend with, thanks to a new molecule discovered by chemists at the University of Illinois. The new antibiotic, an analog of the widely used food preservative ...

Chemistry / Biochemistry

created Mar 19, 2012 | popularity 4.5 / 5 (2) | comments 0 | with audio podcast

Mysterious objects at the edge of the electromagnetic spectrum

The human eye is crucial to astronomy. Without the ability to see, the luminous universe of stars, planets and galaxies would be closed to us, unknown forever. Nevertheless, astronomers cannot shake their ...

Space & Earth / Astronomy

created Mar 19, 2012 | popularity 4.7 / 5 (36) | comments 71 | with audio podcast