News tagged with flow
Brain surgery evolves to destroy rogue blood vessels
Dec 16, 2009 |
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(PhysOrg.com) -- Over three decades, a world-recognized medical team at UC San Diego Medical Center has spurred the evolution of a complex surgery to destroy dangerous clusters of arteries and veins in the brain. Integrating ...
Intelligent Traffic System Predicts Future Traffic Flow on Multiple Roads
Oct 12, 2009 |
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(PhysOrg.com) -- In urban areas, there’s almost always more than one way to get somewhere, but often it’s difficult to predict which road will be fastest. In an attempt to improve traffic flow and decrease ...
Optimized by Evolution, Ants Don't Have Traffic Jams
Mar 30, 2009 |
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(PhysOrg.com) -- As highway traffic increases, you'd probably expect a traffic jam, where vehicles slow down due to the high density. While traffic jams are a common occurrence on our highways, high density ...
NASA tech zooms in on water and land
Dec 15, 2009 |
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In a pilot project that could help better manage the planet's strained natural resources, space-age technologies are helping a Washington state community monitor its water availability. NASA satellites and ...
Gas pump made of minerals has no moving parts
Nov 28, 2008 |
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(PhysOrg.com) -- Scientists have discovered that a type of hard mineral called zeolite can provide a high rate of gas flow in a micro-scale gas pump. Because the pump is based simply on temperature differences ...
Gas improves blood flow and organ status during minimally invasive surgery
Dec 14, 2009 |
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As good as laparoscopy is in preventing some of the stresses of open surgery on the body, it does have drawbacks, including reduced blood flow and organ dysfunction. Laparoscopy is a type of surgery in the abdomen done through ...
Weir in space and dimmed sun creates 200-million-mile-long lab bench for turbulence research
Dec 11, 2009 |
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Physicists working in space plasmas have made clever use of the Ulysses spacecraft and the solar minimum to create a massive virtual lab bench to provide a unique test for the science underlying turbulent ...
Cosmic entropy could be 100 times greater than previously thought
Oct 06, 2009 |
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(PhysOrg.com) -- A new analysis of supermassive black holes has discovered the entropy of the universe is much greater than previously thought, which means it may also be very slightly closer to ultimate heat death.
Washing away painful wounds
Aug 26, 2009 |
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More than six million people in the U.S. suffer from persistent wounds -- open sores that never seem to heal or, once apparently healed, return with a vengeance. The bedridden elderly and infirm are prone ...
In radiation 'ventriloquism,' electromagnetic waves travel backwards
Sep 23, 2008 |
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(PhysOrg.com) -- Typically, electromagnetic waves travel away from their sources. For instance, a radar system emits radio waves that travel all the way to a target, such as a car or plane, before being reflected ...
Achieving optimal efficiencies for nanoengines
Apr 29, 2009 |
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(PhysOrg.com) -- "There's a lot of recent interest in understanding the functioning and optimal performance of small systems," Katja Lindenberg tells PhysOrg.com. Lindenberg is a scientist in the Department of Chemistry and Bi ...
Unifying The Animate And The Inanimate Designs Of Nature
Apr 28, 2009 |
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(PhysOrg.com) -- Living beings and inanimate phenomena may have more in common than previously thought.
Putting the Pressure on Iron-Based Superconductors
Mar 05, 2009 |
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(PhysOrg.com) -- Traditionally, magnetism and superconductivity don't mix. For more than 20 years, the only known superconductors that worked at so-called "high" temperatures (above 30 K, or about -406 degrees ...
Membrane filters are key to future of public water supply, scientists say
Apr 21, 2009 |
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As municipalities across the United States reduce their dependence on groundwater sources to mitigate environmental impacts like subsidence and flooding, there is a growing need for better purification processes to keep contaminants ...
Scientists discover rigid structure in centre of turbulence
May 05, 2009 |
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Pioneering mathematical engineers have discovered for the first time a rigid structure which exists within the centre of turbulence, leading to hope that its chaotic movement could be controlled in the future.
