News tagged with directional antenna

No-photon laser: Physicists demonstrate 'superradiant' laser design

Physicists at JILA have demonstrated a novel "superradiant" laser design, which has the potential to be 100 to 1,000 times more stable than the best conventional visible lasers. This type of laser could boost ...

Physics / Optics & Photonics

created Apr 04, 2012 | popularity 4.9 / 5 (14) | comments 7 | with audio podcast

Insect hearing inspires new approach to small antennas

(PhysOrg.com) -- Ormia ochracea is a small parasitic fly best known for its strong sense of directional hearing. A female fly tracks a male cricket by its chirps and then deposits her eggs on the unfortunate ...

Technology / Engineering

created Feb 28, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Measuring the next successful antennas for in-body health monitoring devices

Antennas for the latest implanted medical devices are being developed by Queen Mary University of London and tested through a unique piece of kit at the UK's National Physical Laboratory (NPL).

Technology / Engineering

created Sep 08, 2009 | popularity not rated yet | comments 0




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Wireless 'tooth tattoo' detects harmful bacteria

Using silk strands pulled from cocoons and gold wires thinner than a spider's web, researchers at Princeton University have created a removable tattoo that adheres to dental enamel and could eventually monitor ...

Technology / Engineering

created 14 hours ago | popularity 3 / 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 13 hours ago | popularity not rated yet | comments 0

Got nectar? To hawkmoths, humidity is a cue

(Phys.org) -- Humidity emanating from a flower's nectar stores tells a moth if the flower is worth a visit, research led by a UA entomologist has discovered.

Biology / Plants & Animals

created 13 hours ago | popularity not rated yet | comments 1 | with audio podcast

Good vibes: Coupling electron spin states and carbon nanotube vibrations

(Phys.org) -- An electron’s spin is separate from its motion, and is suitable for use in both highly-precise magnetic sensing as well as a qubit in quantum computing. Recently, scientists at the University ...

Physics / General Physics

created May 23, 2012 | popularity 4.7 / 5 (7) | comments 1 | with audio podcast feature

How environmental effects regulate genes

Swiss researchers provide evidence that a protein in the cell nucleus responds to environmental stimuli like a kind of sensor, regulates genes accordingly and thus exchanges information with the cell memory. ...

Biology / Cell & Microbiology

created May 22, 2012 | popularity 5 / 5 (1) | comments 0

Photonics: strong vibrations

A new approach to generating terahertz radiation will lead to new imaging and sensing applications. The low energy of the radiation means that it can pass through materials that are otherwise opaque, opening ...

Physics / Optics & Photonics

created May 10, 2012 | popularity 5 / 5 (3) | comments 0

DC3: Chemistry of thunderstorms

(Phys.org) -- NASA researchers are about to fly off on a campaign that will take them into the heart of thunderstorm country.

Space & Earth / Earth Sciences

created May 09, 2012 | popularity not rated yet | comments 0

Biologists turn back the clock to understand evolution of sex differences

Sex differences account for some of the most of the spectacular traits in nature: the wild colours of male guppies, the plumage of peacocks, tusks on walruses and antlers on moose. Sexual conflict – the ...

Biology / Plants & Animals

created May 03, 2012 | popularity 3.5 / 5 (4) | comments 3 | with audio podcast

Science fair winner publishes new study on butterfly foraging behavior

University of Florida lepidopterist Andrei Sourakov has spent his life's work studying moths and butterflies. But it was his teenage daughter, Alexandra, who led research on how color impacts butterflies' feeding patterns.

Biology / Plants & Animals

created Apr 30, 2012 | popularity 3 / 5 (2) | comments 0

Improving on the amazing: Scientists seek new conductors for metamaterials

(Phys.org) -- Scientists at the U.S. Department of Energy’s Ames Laboratory have designed a method to evaluate different conductors for use in metamaterial structures, which are engineered to exhibit ...

Physics / Optics & Photonics

created Apr 24, 2012 | popularity 4.8 / 5 (5) | comments 4 | with audio podcast


List of search results for directional antenna