A research group at the University of Alicante has developed an application for smart phones designed for the blind to overcome aerial obstacles such as branches or awnings, which cannot be done with guide dogs or walking ...
Software
Jul 12, 2013
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Sound travels as waves, which continue to bounce off surfaces like walls and ceilings. These reflected waves or reverberations interfere with the original sound. This noise or acoustic reverberation makes it harder for us ...
Engineering
Jul 11, 2013
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The way in which radio spectrum is currently allocated to different wireless technologies can lead to gross inefficiencies. In some regions, for instance, the frequencies used by cellphones can be desperately congested, while ...
Electronics & Semiconductors
May 15, 2013
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In inland estuaries and shallow coastal waters, small particles of organic matter, such as organic waste and debris or bacteria, clump together to form an aggregate known as floc. Flocculated particles can span a range of ...
Earth Sciences
May 9, 2013
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Having a neighborly chat improves seed germination, finds research in BioMed Central's open access journal BMC Ecology. Even when other known means of communication, such as contact, chemical and light-mediated signals, are ...
Ecology
May 6, 2013
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(Phys.org) —Radar systems today depend increasingly on phased-array antennas, an advanced design in which extensive grids of solid state components direct signal beams electronically. Phased array technology is replacing ...
Engineering
Mar 31, 2013
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JILA researchers demonstrated thatinformation encoded as a specific point in atraveling microwave signal—the vertical and horizontal positions of a wave pattern at a certain ime—can be transferred to the mechanical beat ...
Quantum Physics
Mar 13, 2013
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The mating success of male butterflies is often lower if they are inbred. But how do female butterflies know which males to avoid? New research reveals that inbred male butterflies produce significantly less sex pheromones, ...
Plants & Animals
Mar 5, 2013
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Clownfish produce sounds to establish and defend their breeding status in social groups, but not to attract mates, according to research published November 7 in the open access journal PLOS ONE by Orphal Colleye and colleagues ...
Plants & Animals
Nov 7, 2012
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On Saturday, May 26, the German research vessel POSEIDON sailed from the port of Bergen, Norway, for an expedition to the Norwegian Sea. On board the newly developed ocean floor observatory, MoLab, is being taken to its first ...
Earth Sciences
Jun 1, 2012
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