Silver Nanoparticles Give Polymer Solar Cells A Boost Oct 7, 2009
They have now discovered that adding tiny bits of silver to the plastic boosts the materials electrical current generation ... Berger and his team measured the amount of light absorbed and the current density -- the amount of electrical current generated per square centimeter -- generated by an experimental solar cell polymer with and without silver nano-particles ... Even though the silver particles allow the material to produce 12 percent more electrical current, that improvement may not... (Science Daily)
Renewable hydrogen production becomes reality at winery Oct 6, 2009
The wastewater enters the cell where naturally occurring bacteria convert the organic material into electrical current. If the voltage produced by the bacteria is slightly increased, hydrogen gas is produced electrochemically on the stainless steel cathode. (EurekAlert!)
Cervical Cancer Strikes Poor Women Hardest Oct 3, 2009
There are various treatments for HPV. These include freezing the abnormal cells with liquid nitrogen and removing them, or destroying them with a painless electrical current. "The sooner a woman is treated, the better," said Gail-Bekker. (allAfrica.com)
Brain waves can influence human behavior Oct 2, 2009
In the new study, researchers injected a small electrical current into the brain through the scalps of fourteen people while the participants manipulated the position of a spot on a computer screen as quickly as they could with a joystick. They used electrical current to increase normal beta activity, a wave that earlier studies linked to sustained muscle activities, such as holding a book ... Brown said the researchers were surprised that the electrical currents used in the study-which were... (India Times, India)
Malignant Tumor Cells Seen In Real Time Oct 2, 2009
In electrosurgery, tissue is locally exposed to high-frequency electrical current in order to guide a cut, remove tissue, or halt bleeding ... The electrical current also generates electrically charged molecules during the vaporization. (Science Daily)
LHC gets warning system upgrade Sep 30, 2009
Superconductivity is the property, exhibited by some materials at very low temperatures, to channel electrical current with zero resistance and very little power loss ... All LHC magnets undergo a "training" process, in which engineers crank up the electrical current until the magnets quench. (BBC News -- Technology)
Pfeifer changes course, pursues engineering degree Sep 24, 2009
By running an electrical current through salt water, a chemical reaction occurs that results in chlorine. The chlorine is broken back down to salt by the sun, Pfeifer said, so the pool water is just re-circulated through the salt water chlorine generator. (Kalona News, IA)
New Findings Could Help Hybrid, Electric Cars Keep Their Cool Sep 24, 2009
The devices also are needed for "regenerative braking," in which the electric motors serve as generators to brake the vehicle, generating power to recharge the battery pack; to convert electrical current to run accessories in the vehicle; and to convert alternating current to direct current to charge the battery from a plug-in line. The high-power devices produce about four times as much heat as a conventional computer chip. (Science Daily)
What is a GFCI Electrical Outlet? Sep 22, 2009
Ground Fault means that this type of receptacle, or outlet as they are more commonly known, can detect if electrical current escapes from the intended flow ... This third wire works in conjunction with the neutral wire to make sure that all electrical currents stay routed within its fixture or device ... The ground wire/system also routes electrical current back to the panel box should the neutral wire fail to carry the entire flow. (RealtyTimes)
Cautious canines learn about snakes Sep 22, 2009
Then Smith applies a correction collar that can deliver an electrical current that simulates a snakebite but does not harm the dog. Most dogs yelp and back off and then trainers will commiserate with the dogs and calm their nerves. (Yuma Daily Sun, AZ)
Spinal advance gets rats running Sep 21, 2009
Scientists have known for some time that if a tiny electrical current is applied to the nerve just below the injury, it produces a muscle contraction. However, the act of walking relies on a complex sequence of such contractions delivered at the right moment, so that the legs can carry the weight of the body forwards. (BBC News -- Health)
Strain On Nanocrystals Could Yield Colossal Results Sep 19, 2009
To determine if phase inhomogeneity can be caused by external effects, Wu and his colleagues worked with vanadium oxide, a representative correlated electron material that features a metal-nonmetal transition, where in the nonmetal state its electrons can no longer carry an electrical current. After synthesizing the vanadium oxide into flexible single-crystal micro- and nanowires, the research team subjected the wires to strain by bending them to different curvatures. (Science Daily)
Scientists Find Way to Tap Electricity From Trees Sep 16, 2009
And although the popular potato or lemon battery experiments have shown that an electrical current can be generated by creating a reaction between the food and two different metals, power is harvested from trees through a different mechanism. "We specifically didn't want to confuse this effect with the potato effect, so we used the same metal for both electrodes," said Babak Parviz, a professor of electrical engineering at Washington University and co-author of the study. (Fox News)
Why yes, electricity does grow on trees sort of Sep 16, 2009
And although the popular potato or have shown that an electrical current can be generated by creating a reaction between the food and two different metals, power is harvested from trees through a different mechanism. advertisement. (MSNBC -- Technology)
Electricity harvested from trees Sep 16, 2009
Children all over the world who have tried the potato or lemon battery experiments know that an electrical current can be generated by creating a reaction between the food and two different metals. However, researchers at the Massachusetts Institute of Technology have found a different way to harvest power from trees. (Xinhuanet, China)
Looking Deeply Into Polymer Solar Cells Sep 15, 2009
5, 2009) Researchers have found a way to measure exactly how much electrical current is carried by tiny bubbles and channels that form inside nanoscale solar cells, paving the way for development of more. (Nov. (Science Daily)
Gold Solution For Enhancing Nanocrystal Electrical Conductance Sep 15, 2009
10, 2007) A chemical engineer has modified a plastic so its ability to carry an electrical current can be altered during manufacturing to meet the needs of future electronic. (Aug. (Science Daily)
Carbon Nanotubes Could Make Efficient Solar Cells Sep 11, 2009
Reported online Sept. 11 in the journal Science, the researchers -- led by Paul McEuen, the Goldwin Smith Professor of Physics, and Jiwoong Park, assistant professor of chemistry and chemical biology -- describe how their device converts light to electricity in an extremely efficient process that multiplies the amount of electrical current that flows ... Shining lasers of different colors onto different areas of the nanotube, they found that higher levels of photon energy had a multiplying... (Science Daily)
Researchers Identify Critical Gene For Brain Development, Mental Retardation Sep 7, 2009
Working with slices of mouse brain, they used electrical current to introduce pieces of genetic material that would either ramp up or, conversely, knock down the action of the protein s F-BAR domain. They then cultured brain slices in petri dishes allowing researchers to watch how the neurons behaved in the wild in their native environment. (Science Daily)
Super-fast Computers Of The Future Sep 4, 2009
Professor Stefan Maier, who leads the research team at Imperial added: This is an exciting step towards developing computers that use light waves, not electrical current, to handle data and process information. In the future these optical computers will provide us with more processing power and higher speed. (Science Daily)
Cigarettes May Dull Taste Buds Aug 29, 2009
Applying an electrical current to the tongue generates a unique metallic taste. Measuring the amount of current required before a person perceives this taste enables researchers to determine taste sensitivity. (MEDLINEplus)
Scientists Detect 'Fingerprint' Of High-temp Superconductivity Above Transition Temperature Aug 29, 2009
16, 2008) One of the biggest mysteries in studying high-temperature (Tc) superconductors - materials that conduct electrical current with no resistance below a certain transition temperature - is the origin of. (Mar. (Science Daily)
Weymouth officials see savings in sunbeams Aug 29, 2009
The tubes generate 60 percent of the electrical current that is needed to heat Camelot s hot water. Backup electric heaters are available to provide warmth in the building if a mechanical problem arises with the system. (Weymouth News, MA)
Abnormal Heartbeats Caused By Changes In Ion Channel Density Aug 29, 2009
The coordinated contraction of heart muscle cells that ensures a normal heartbeat is controlled by an electrical current that passes from one heart muscle cell to the next and along a special conduction system within the heart. A block in conduction of this electrical current disrupts the heartbeat and is the most common cause of pacemaker implantation ... Importantly, the PFHBI-associated mutation increased levels of the TRPM4 channel at the cell surface and blunted conduction of the electrical... (Science Daily)
Lightning's Mirror Image ... Only Much Bigger Aug 24, 2009
Electrical engineers developed a mathematical equation to measure the electrical current strength of lightning as it strikes tall buildings. The. (Science Daily)
Smokers' Tongues Fail Taste Test Aug 21, 2009
By applying electrical current to the tongue, a unique metallic taste can be generated. Measuring how much current is required before a person perceives this sensation allows determination of their taste sensitivity. (Science Daily)
Renewable Energies Will Benefit US Workers' Health, Expert Predicts Aug 20, 2009
Both fossil fuel and wind and solar energies share a common pathway and risk for transmission of electrical current via utility powers lines. The researchers concluded that available studies on occupational health risks of energy generation have significant limitations and more precise nationwide data for renewable energy occupations are needed. (Science Daily)
Microchannels Could Advance Tissue Engineering Methods Aug 19, 2009
18, 2009) Utilizing fractal patterns similar to those created by lightning strikes, Victor Ugaz, associate professor in the Artie McFerrin Department of Chemical Engineering at Texas A&M University, has created a network of microchannels that could advance the field of tissue engineering by serving as a three-dimensional vasculature for the support of larger tissue constructs, such as human organs. Ugaz's work, which was undertaken with colleague Arul Jayaraman and appears in the July online... (Science Daily)
Hans Christian Orsted: Who He Was, and Why You Owe Him Aug 15, 2009
rsted established in 1820 that an electrical current coursing through a wire creates a magnetic field that can deflect a compass needle. rsted's seemingly simple observation was nevertheless likely the first to link electricity and magnetism, explained physicist Paul Cadden-Zimansky of the U.S. National Magnetic Field Laboratory at the University of. (National Geographic)
Red Sox’ Wakefield showing real improvement Aug 11, 2009
Lowrie underwent an electromyogram test, a procedure that measures the electrical current in muscles and therefore the amount of muscle activity. This offseason, Francona underwent an EMG for a back injury. (Boston Globe -- Sports)
Schenectady chief wants to buy Tasers Aug 8, 2009
Tasers use electrical current to disrupt voluntary control of muscles. Police said James Tomlin, 25, described by his family members as schizophrenic, threatened a woman with a butcher knife on Aug. 1, demanded a cigarette and then walked 10 blocks on State Street holding two knives. (Albany Times Union)
ER Physician Tells You How To Avoid A Lightning Strike And What To Do If One Occurs Aug 8, 2009
If the victim goes into cardiac arrest, where the heart just stops due to the impact of the massive electrical current, CPR should be administered, Zinzuwadia said ... Electrical engineers developed a mathematical equation to measure the electrical current strength of lightning as it strikes tall buildings. (Science Daily)
Repellent keeps sharks away ... from humans Aug 7, 2009
Disk emits electrical current to prevent them from ending up in fishing nets. A half-dollar-sized metal alloy clamped onto fishing gear protects sharks by creating a mild electrical current ... A half-dollar-sized metal alloy clamped onto fishing gear protects sharks by creating a mild electrical current. (MSNBC -- Environment)
Giant particle collider fizzles, adding to mysteries of life Aug 5, 2009
Before the superconducting magnets are installed, engineers "train" each one by ramping up its electrical current until the magnet fails, or "quenches." Thus the magnet gradually grows comfortable with higher and higher current ... Before the superconducting magnets are installed, engineers "train" each one by ramping up its electrical current until the magnet fails, or "quenches." Thus the magnet gradually grows comfortable with higher and higher current. (Honolulu Star-Bulletin)
Tiny battery traps solar power to run a house for 24 hrs Aug 4, 2009
Only positive sodium ions can pass through, leaving electrons to create a useful electrical current. Ceramatec says that batteries will be ready for market testing in 2011, and will sell for about $2000. (India Times, India -- Health/Science)
New Microbe Strain Makes More Electricity, Faster Aug 4, 2009
1, 2007) No currently known bacteria that allow termites and cows to digest cellulose, can power a microbial fuel cell and those bacteria that can produce electrical current cannot eat cellulose. But careful. (Science Daily)
> Taser hopes new products will reduce legal costs Aug 3, 2009
The X3 emits 63 micro-coulombs a measure of electrical current compared with 110 micro-coulombs from the X26. The X3 also emits a more intimidating warning charge that those about to be tased can see. (Phoenix Business Journal, AZ)
TV SHOW RENEWS DEBATE ON HAWAII SHARK TOUR Aug 3, 2009
"Carl Meyer, an assistant researcher at the University of Hawai'i who studies sharks, said, "Sharks may be initially attracted to boats or other objects by a wide range of sensory stimuli including sight, sound, smell, vibration and even electrical current, but (they) will lose interest unless presented with a food reward. ""Worldwide there have been very few scientific studies of shark cage diving, but those that have been published found that moderate levels of 0000334A these activities... (Honolulu Advertiser)
Profile: Inventors say just stick at it if the idea is good Jul 30, 2009
An electrical current behind the board creates Coulomb forces, which in layman terms can be described as electrostatic forces that attract particular objects, thus providing an effective adhesion surface. The product, which is sold in most retail outlets, has won the duo several global and local innovation awards. (Business Report, South Africa)
Simple fix for 'global warming' Jul 29, 2009
You three are stopping global warm by turning down all electrical current running to your brains. Your bulbs are glowing very dimly. (Bismarck Tribune, ND)
Charging Ahead: Revealing Secrets Of Electricity-producing Materials Jul 29, 2009
"These future piezoelectric nanodevices will also generate an electrical current in response to mechanical stimuli. Then, the energy will be stored in batteries or, even better, in nanocapacitors for use when needed.". Although piezoelectrics have been used for many years, Sharma's team is exploring new possibilities by beefing up the effect in natural piezoelectrics. (Science Daily)
Taser unveils new stun gun Jul 28, 2009
Like the older models, the new stun gun shoots two barbed wires that deliver electrical current for several seconds, temporarily immobilizing people from a distance. Click for related content. (MSNBC -- Crime)
• Pat's picks Jul 28, 2009
You can salvage the fish by any means except firearms, explosives, chemicals or electrical current. You still need to be licensed. (Burley South Idaho Press, ID)
New Taser stun gun can deliver three shocks Jul 28, 2009
Like the older models, the new stun gun shoots two barbed wires that deliver about 6 watts of electrical current for several seconds, temporarily immobilizing people from a distance. The device, which can hit people up to 35 feet away, looks like a bulky gun but weighs less than two pounds. (Longview Daily News, WA)
Smart fiber can act as a camera Jul 21, 2009
When light hits those rings, it creates an electrical current that travels through the fiber and into a computer, which uses a special algorithm to decode the signals and create an image, in this case, a smiley face. If a person donned an entire and walked into a room, the shirt could gather all the light from the objects inside the room to create a detailed, 3-D color image of everything in that room. (MSNBC -- Technology)
Cars may soon be powered by urine Jul 16, 2009
When the research team led by professor Gerardine Botte stuck the electrode into a pool of urine, and applied an electrical current, hydrogen gas was released, which was used in fuel cells. The prototype is about three inches by three inches, and is capable of generating 500 milliwatts of power. (India Times, India)
Breaker didn't prevent girl's death at church (4465) Jul 11, 2009
JMHO " Taylor wrote on Jul 9, 2009 9:49 PM:" Why the hell is there an electrical current running aroud the outside of that unit anyway Explain that. And you cant blame this on a GFI or something there was huma error in more than one case. (Missoulian, MT)
Families should provide more for education Jul 10, 2009
Bulldog wrote on Jul 9, 2009 7:20 AM:" Jim...very good letter.However, I would like to expand on one point you made that I disagree with. The reason that "College is the only way" these days is the failure of our high schools. Social promotion has devalued a diploma so much that it is worthless in the marketplace. When I was a teenager, a diploma was the ticket to entry into the workforce. Today, a college degree is that ticket. We are facing some tough choices on education. But vocational ed,... (Lodi News Sentinel, CA)
Forget gas, batteries pee is new power source Jul 9, 2009
Stick a special nickel electrode into a pool of urine, apply an electrical current, and gas is released. Botte's current prototype measures 3x3x1 inch and can produce up to 500 milliwatts of power. (MSNBC -- Technology)
Magnetic Brain Stimulation Improves Skill Learning, Study Finds Jul 8, 2009
20, 2009) People who received a mild electrical current to a motor control area of the brain were significantly better able to learn and perform a complex motor task than those in control groups. The findings. (Science Daily)
Waffle House waiter sues over Taser incident Jul 3, 2009
Taser stun guns deliver a 50,000-volt electrical current capable of incapacitating a person. The weapon can fire barbed probes a distance of up to 35 feet, or it can be used in drive stun mode when pressed directly against a suspect. (Atlanta Journal-Constitution -- Opinion)
Device Shows Promise to Treat Cerebral Palsy Type Jul 3, 2009
CHICAGO (Reuters) - Zapping the brain with a mild electrical current appears to help patients with a difficult-to-treat form of cerebral palsy, French researchers said on Wednesday. Patients in the study were implanted with pacemaker-like devices known as deep-brain stimulators made by Medtronic Inc, which helped fund the study. (MEDLINEplus)
Light Sensor Breakthrough Could Enhance Digital Cameras Jun 23, 2009
Until now, no group had collected an electrical current from a device that takes advantage of MEG.. "Digital cameras are now universal, but they suffer from a major limitation: they take poor pictures under dim light. One reason for this is that the image sensor chips inside cameras collect, at most, one electron's worth of current for every photon (particle of light) that strikes the pixel," says Ted Sargent, professor in U of T's Department of Electrical and Computer Engineering. (Science Daily)
Your Health: Sweating can be big stuff Jun 22, 2009
In this unlikely-sounding treatment, patients put their hands or feet in shallow trays of water with a device that emits a mild electrical current. It's thought that the electricity and minerals in the water work together to slightly thicken the skin, blocking the flow of sweat. (USA Today -- News)
Scientist Finds Plumber's Wonderland On Graphene Jun 19, 2009
The "knife" and "welding torch" used in the experiments, which were performed inside an electron microscope, was electrical current from a Nanofactory scanning probe, generating up to 2000 ... Upon applying the electrical current to few-layer graphene, they observed the in situ creation of many interconnected, curved carbon nanostructures, such as "fractional nanotube"-like graphene bi-layer edges, or BLEs; BLE rings on graphene equivalent to "anti quantum-dots"; and nanotube-BLE assembly... (Science Daily)
'Colossal' Magnetic Effect Advances Computing Jun 6, 2009
An example is magnetic tunneling junctions in soon-to-be marketed magnetic random access memory (MRAM), where the tunneling of electrical current between two thin layers of manganite material separated by an electrical insulator depends on the relative orientation of magnetization in the manganite layers. Unlike conventional RAM, MRAM could yield instant-on computers. (Science Daily)
Revolutionary Ultrasonic Nanotechnology May Allow Scientists To See Inside Patient’s Individual Cells Jun 4, 2009
Our answer to some of these challenges is to create a device that works optically using pulses of laser light to produce ultrasound rather than an electrical current. This allows us to talk to these tiny devices. (Science Daily)
Faster Protein Folding Achieved Through Nanosecond Pressure Jump Jun 3, 2009
A powerful electrical current then bursts the diaphragm, which releases the pressure and produces a sub-microsecond pressure drop. The proteins re-fold, and are monitored through laser-excited fluorescence. (Science Daily)
How Does The Human Brain Work? New Ways To Better Understand How Our Brain Processes Information May 27, 2009
These neurons carry messages through electrochemical processes; meaning, chemicals in our body (charged sodium, potassium and chloride ions) move in and out of these cells and establish an electrical current. See also. (Science Daily)
Hydrogen Powered Municipal Vehicle Being Tested In Everyday Use May 26, 2009
They convert hydrogen directly into electrical current, which is then used to drive a vehicle's electric motor. The great advantage is that no pollutants are emitted in the vehicle's exhaust, just water vapor produced by the chemical reaction between hydrogen and oxygen in the fuel cell. (Science Daily)
Multiferroics -- making a switch the electric way May 23, 2009
Whereas a typical CMOS device features an on/off switching ratio (the difference between resistance and non-resistance to electrical current) of about one million, Ramesh and his group achieved an on/off switching ratio of about a thousand in their calcium-doped bismuth ferrite films. While this ratio is sufficient for device operation and double the best ratio achieved with magnetic fields, Chan-Ho Yang, lead author on this Nature Materials paper and a post-doc in Ramesh's group says it can be... (EurekAlert!)
Scientists Work To Plug Microorganisms Into The Energy Grid May 20, 2009
They have completed laboratory scale prototype "microbial batteries" using the bacteria and the fuel cells in a single enclosed system that, when exposed to sunlight, produces enough electrical current to power a laptop. "This is just a look under the hood at the types of activities that are going on in the United States to take advantage of microbial activities and deploy them to create the next generation of fuels," says Donohue. (Science Daily)
Elevated argument May 20, 2009
He said the transit cars could be powered by hanging electrical lines or by a system that would only trigger an electrical current when the cars touch the rail ... He said the transit cars could be powered by hanging electrical lines or by a system that would only trigger an electrical current when the cars touch the rail. (Honolulu Star-Bulletin)
Thermal Conductivity Of Seafloor May 12, 2009
The electrical current they will produce will be conveyed over a distance of 45 km past Norderney to the mainland, at a depth of two to three meters buried in the seafloor. See also. (Science Daily)
High-Tech Firm Prospers By Making Smart Gadgets Easier To Use May 12, 2009
It has more than 60% of the market for trackpads for notebook computers, and it's the leading provider of capacitive touch-screens that is, screens that detect the electrical current in the human body for mobile phones. "The company has grown on a very good trajectory in spite of a tough economic environment," Synaptics Chief Executive Francis Lee said in an interview. (Investors Business Daily)
