News tagged with power system

Researchers develop method that shows diverse complex networks have similar skeletons

Northwestern University researchers are the first to discover that very different complex networks -- ranging from global air traffic to neural networks -- share very similar backbones. By stripping each network down to its ...

Technology / Computer Sciences

created Jun 01, 2012 | popularity 5 / 5 (4) | comments 4 | with audio podcast

New small solid oxide fuel cell reaches record efficiency

Individual homes and entire neighborhoods could be powered with a new, small-scale solid oxide fuel cell system that achieves up to 57 percent efficiency, significantly higher than the 30 to 50 percent efficiencies ...

Technology / Energy & Green Tech

created May 31, 2012 | popularity 4.6 / 5 (24) | comments 47 | with audio podcast

Flame virus a new age cyber spy tool

The Flame computer virus that smoldered undetected for years in Middle Eastern energy facilities confirmed fears that the world has entered a new age of cyber espionage and sabotage.

Technology / Internet

created May 31, 2012 | popularity 5 / 5 (1) | comments 1

Grid realities cancel out some of wind power's carbon savings

(Phys.org) -- Wind energy lowers carbon emissions, but adding turbines to the current grid system does not eliminate emissions proportionally, according to a report by researchers at the Argonne National Laboratory.

Technology / Energy & Green Tech

created May 30, 2012 | popularity 3.5 / 5 (6) | comments 5 | with audio podcast

Bluetooth baby

Checking the heart of the unborn baby usually involves a stethoscope. However, an inexpensive and accurate Bluetooth fetal heart rate monitoring system has now been developed by researchers in India for long-term home care. ...

Technology / Other

created May 17, 2012 | popularity 5 / 5 (2) | comments 0

NREL simulates shade conditions in repeatable test for solar arrays

The DOE's National Renewable Energy Laboratory (NREL) has released a new repeatable test protocol that simulates real shade conditions and can predict with much greater precision the effects of shade on a solar array.

Technology / Energy & Green Tech

created May 15, 2012 | popularity not rated yet | comments 0

Virtual power plants for renewable energies

Siemens recently put two virtual power plants into operation. Virtual power plants are networks of several small power stations that are run like a single system. One of the new virtual power plants enables ...

Technology / Energy & Green Tech

created Apr 27, 2012 | popularity not rated yet | comments 1

Solar panels cause clashes with homeowner groups

(AP) -- The government wants you to install solar panels at your house, and will even give you a tax break to do it. But your neighbors? Maybe not.

Technology / Energy & Green Tech

created Apr 25, 2012 | popularity 3 / 5 (2) | comments 14

Engineering a safer world

Innovations in software and technology are creating increasingly complex systems: cars that park themselves; medical devices that automatically deliver drugs; and smartphones with the computing power of desktop ...

Technology / Engineering

created Apr 24, 2012 | popularity not rated yet | comments 0

Avocado oil: The 'olive oil of the Americas'?

Atmospheric oxygen facilitated the evolution and complexity of terrestrial organisms, including human beings, because it allowed nutrients to be used more efficiently by those organisms, which in turn were able to generate ...

Chemistry / Biochemistry

created Apr 23, 2012 | popularity 5 / 5 (1) | comments 2

Nanocrystal-coated fibers might reduce wasted energy

(Phys.org) -- Researchers are developing a technique that uses nanotechnology to harvest energy from hot pipes or engine components to potentially recover energy wasted in factories, power plants and cars.

Nanotechnology / Nanomaterials

created Apr 17, 2012 | popularity 4.4 / 5 (9) | comments 1 | with audio podcast

Advanced power-grid research finds low-cost, low-carbon future in West

The least expensive way for the Western U.S. to reduce greenhouse gas emissions enough to help prevent the worst consequences of global warming is to replace coal with renewable and other sources of energy ...

Technology / Energy & Green Tech

created Apr 03, 2012 | popularity 4.2 / 5 (14) | comments 73 | with audio podcast

Power without the cord

Cell phones and flashlights operate by battery without trouble. Yet because of the limited lifespan, battery power is not a feasible option for many applications in the fi elds of medicine or test engineering, ...

Technology / Engineering

created Apr 02, 2012 | popularity 5 / 5 (1) | comments 0

Wind turbines that learn like humans

Depending on the weather, wind turbines can face whispering breezes or gale-force gusts. Such variable conditions make extracting the maximum power from the turbines a tricky control problem, but a collaboration of Chinese ...

Technology / Energy & Green Tech

created Mar 27, 2012 | popularity 4.8 / 5 (6) | comments 16 | with audio podcast

Smarter computing systems make society better

Smarter computing systems can help give our lives a big boost - in education, healthcare, transportation, security and even the environment. But these computing systems need to be adjusted constantly, to help ...

Technology / Computer Sciences

created Mar 27, 2012 | popularity not rated yet | comments 0