#Carbon nanotube fibers outperform copper in carrying electrical currenton a pound-per-pound basis carbon nanotube-based fibers invented at Rice university have greater capacity to carry electrical current
The fibers proved overall to be better at carrying electrical current than copper cables of the same mass.
Scientists working with nanoscale materials have thought long there's a better way to move electricity from here to there.
Certain types of carbon nanotubes can carry far more electricity than copper. The ideal cable would be made of long metallic armchair nanotubes that would transmit current over great distances with negligible loss
Pasquali said there has been a disconnect between electrical engineers who study the current carrying capacity of conductors
Electric cables heat up because of resistance. When the current load exceeds the cable's safe capacity they get too hot and break.
Copper still has better resistivity by an order of magnitude but we have the advantage that carbon fiber is light.
Suppose you want to power an unmanned aerial vehicle from the ground he mused. You could make it like a kite with power supplied by our fibers.
Kono is a professor of electrical and computer engineering of physics and astronomy and of materials science and nanoengineering.
and electricity during grain drying; the production and application of nitrogen fertilizers (which are associated also with GHG emissions;
Armed with just the right atomic arrangements superconductors allow electricity to flow without loss and radically enhance energy generation delivery and storage.
Atomic Jungle Gymimagine a child playing inside a jungle gym weaving through holes in the multicolored metal matrix in much the same way that electricity flows through materials.
This particular kid happens to be wearing a powerful magnetic belt that repels the metal bars as she climbs.
Flowing electricity can have a similar effect on the atomic lattices of superconductors repelling the negatively charged valence electrons in the surrounding atoms.
and lack the degree of freedom to accommodate strong enough interactions between electricity and the lattice Yin said.
because electricity can shift arsenic's electron cloud much more easily than oxygen's. In the case of the atomic jungle gym this complexity demands new theoretical models
and experimental data considering that even a simple lattice made of north-south bar magnets can become a multidimensional dance of attraction and repulsion.
and flow of electricity scientists needed a window into the orbital interactions. Tracking Orbitsconsider measuring waves crashing across the ocean's surface Zhu said.
Cobalt doping pushed the orbital electrons in the arsenic outward concentrating the negative charge on the outside of the'sandwich
The quadrupole polarization of the iron which indicates the orbital fluctuation couples intimately with the arsenic dipole polarization--this mechanism may be key to the emergence of high-temperature superconductivity in these iron-based compounds.
#Genetic find might lead to cattle that are more resistant to TBSCIENTISTS have identified genetic traits in cattle that might allow farmers to breed livestock with increased resistance to bovine tuberculosis (TB.
The research led by the University of Edinburgh's Roslin Institute has identified a number of genetic signatures associated with TB resistance in the cows that remained unaffected.
Refining genomic predictors of resistance will be the focus of a new BBSRC-funded study to be carried out by researchers at Roslin the AFBI and Scotland's Rural College the SRUC.
If we can choose animals with better genotypes for TB resistance then we can apply this information in new breeding programs alongside other control strategies.
Before now breeding for resistance to Yellow (Tan) Spot and Septoria Nodorum Blotch was very time-consuming--no molecular markers were in use.
For the first time our technology allows for a steady and sustained improvement in disease resistance without affecting the farmer's pocket.
and frost resistance. Using large wheat variety trials provided by Kalyx Australia the team looked at yield loss of different cultivars (plants chosen for breeding because of desirable characteristics)
and it would be a safe and straightforward strategy for improving disease resistance. Professor Oliver said this research had never been done before as direct mapping for disease resistance had led not to useful molecular markers.
Previously geneticists would infect plants that were progeny of crosses between relatively resistant and relatively susceptible parents before doing the QTL (quantitative disease-resistance gene) mapping.
But as disease resistance is multifactorial due to the several effector reactions the QTL mapping was always a bit fuzzy
and was passed therefore never on Professor Oliver said. Our research looks directly at the loci that recognise the pathogens
and/or the electricity to operate it. The Rice test depends on recent developments in a recombinase polymerase amplification (RPA) technique that gives similar gold standard results to PCR
Such bacterial aggregates are of clinical importance as they provide reservoirs for pathogenic organisms to persist in the host and often display increased resistance to antibiotics.
Bacteria forming biofilms frequently display antibiotic resistance and can be tenacious foes to combat medically.
The researchers point to mounting evidence of the evolution of pest resistance to Bt cotton suggesting that the value of bat pest control services may increase again.
This evidence of resistance evolution suggests that Bt cotton may not be a long-term solution to pest-related losses said Mccracken.
In fact by preying on the individual insects that survive the Bt toxin bats may provide the additional service of slowing the evolution of resistance to Bt and other insecticides.
The study published in Hortscience also investigated the practice of using of locally produced grape marc compost to promote drought resistance
and results showed that cold temperatures promoted stomatal closure higher root resistance lower stem water potential lower transpiration and lower stem water potential.
#Trees diminished resistance to tropical cyclone winds attributed to insect invasionsguam experiences more tropical cyclones than any other state
but how to use them to generate electricity is not nearly as well understood. Scientists at Rice are working on that too.
Link is an associate professor of chemistry and of electrical and computer engineering. The Robert A. Welch Foundation the National Science Foundation the Army Research Office and the American Chemical Society Petroleum Research Fund supported the research.
#Developing new methods to assess resistance to disease in young oilseed rape plantsbeing able to measure resistance to disease in young oilseed rape plants is vital in the battle to breed new
However assessing disease resistance in young oilseed rape plants is difficult as there is a long period where the pathogen is not visible--it can infect plants
So there is a need to develop oilseed crop varieties with greater inbuilt resistance to the disease.
Although oilseed rape crops in the UK are bred for disease resistance it is a difficult and expensive process--both in time
Crops also need to be grown at various sites to assess the impact of location on disease resistance--adding yet more cost and time to the assessment.
If resistance can be assessed in young oilseed rape plants it will not only accelerate the process of breeding oilseed rape crops for resistance
Our study investigates new methods for assessing disease resistance in young plants. The paper based on experiments done by Dr Yong-Ju Huang at Rothamsted Research shows that resistance in young oilseed rape plants can be detected in controlled conditions
--and suggests that the methods should be evaluated further to develop techniques which can be used reliably by breeders to select for quantitative resistance in young plants.
This will not only save money but also accelerate the process of breeding for resistance. Story Source:
The above story is provided based on materials by University of Hertfordshire. Note: Materials may be edited for content and length.
#Electrical generator uses bacterial spores to harness power of evaporating watera new type of electrical generator uses bacterial spores to harness the untapped power of evaporating water according to research conducted at the Wyss Institute of Biologically Inspired
Its developers foresee electrical generators driven by changes in humidity from sun-warmed ponds and harbors.
and that movement can be harvested to generate electricity. If this technology is developed fully it has a very promising endgame said Ozgur Sahin Ph d. who led the study first at Harvard's Rowland Institute later at the Wyss Institute
But until now no one has tapped that energy to generate electricity. As Sahin pursued the idea of a new humidity-driven generator he realized that Mahadevan had been investigating similar problems from a physical perspective.
Then he built a simple humidity-driven generator out of Legosâa miniature fan a magnet and a spore-coated cantilever.
As the cantilever flips back and forth in response to moisture it drives a rotating magnet that produces electricity.
If changes in humidity could be harnessed to generate electricity night and day using a scaled up version of this new generator it could provide the world with a desperately needed new source of renewable energy.
when the wave causes it to vibrate it produces a voltage we can detect. That signal is proportional to the gas concentration.
Tittel is the J. S. Abercrombie Professor in Electrical and Computer Engineering and a professor of bioengineering.
Between 2008 and 2011 Chestertown's electricity consumption dropped by roughly 300000-kilowatt hours per year. This amounted to a greater than 11 percent decrease and an avoidance of more than $130000 annually in costs.
Findings published today in the Journal of Nutrition reveal that high intakes of these dietary compounds are associated with lower insulin resistance and better blood glucose regulation.
But until now little has been know about how habitual intakes might affect insulin resistance blood glucose regulation and inflammation in humans.
Insulin resistance a hallmark of type 2 diabetes was assessed using an equation that considered both fasting insulin and glucose levels.
and flavones had lower insulin resistance. High insulin resistance is associated with Type 2 diabetes so
what we are seeing is that people who eat foods rich in these two compounds--such as berries herbs red grapes wine-are less likely to develop the disease.
Our anticipation of possible improvement of resistance to abiotic stresses via phytochrome RNA interference further adds to its commercial potential. â#Story Source:
and Douglas Natelson found that it's possible to soften the bonds between atoms by applying a voltage and running an electric current through a single buckyball.
when a buckyball attaches to a gold surface in the optical nano antenna used to measure the effects of an electric current on intermolecular bonds through a technique called Raman spectroscopy.
Natelson's group built the nano antenna a few years ago to trap small numbers of molecules in a nanoscale gap between gold electrodes.
Once the molecules are in place the researchers can chill them heat them blast them with energy from a laser or electric current and measure the effect through spectroscopy
The nano antenna is able to detect the tone of detuned vibrations between atoms through surface-enhanced Raman spectroscopy (SERS) a technique that improves the readings from molecules
Isolating a buckyball in the gap between the gold electrodes lets the researchers track vibrations through the optical response seen via SERS.
It's as if the springs get floppier at high voltages in this particular system. The effect is reversible;
The Stark effect is seen when molecules'spectral responses shift under the influence of an electric field.
and astronomy and of electrical and computer engineering at Rice. The Robert A. Welch Foundation the Department of energy the Israel Science Foundation and the Lise Meitner Center for Computational Chemistry supported the work.
#Ramularia and the 4 Rsthe gene that has provided spring barley with resistance to powdery mildew for over 30 years increases susceptibility to newly-important disease Ramularia leaf spot.
and widely-used resistances to an important crop disease has the detrimental effect of increasing susceptibility to another we took a closer look says Professor James brown from the John Innes Centre.
It has struck us that plant breeding relying on the successful use of a single major resistance gene can increase susceptibility to another disease said R&d breeder Peter Werner from KWS UK.
#How electricity helps spider webs snatch prey and pollutantsspider webs actively spring towards prey thanks to electrically-conductive glue spread across their surface Oxford university scientists have discovered.
They also showed that the glue spirals can distort Earth's electric field within a few millimetres of the web
'Electrical attraction drags these particles to the webs so you could harvest and test webs to monitor pollution levels--for example to check for pesticides that might be harming bee populations.'
'Working with Dr Donald Edmonds from Oxford university's Department of physics Professor Vollrath showed that webs like that of the garden cross spider also cause local distortions in Earth's electric field
Many insects are able to detect small electrical disturbances including bees that can sense the electric fields of different flowers and other bees.'
'Pretty much all flying insects should be capable of sensing electrical disturbances'said Professor Vollrath.''Their antennae act as'e-sensors
'Electrical disturbances caused by spider webs are ranged extremely short so it is not yet clear whether insects would be able to sense them before the web snaps out to grab them.
'People often underestimate the static electricity that builds up in airborne objects but it is important at all scales'said Professor Vollrath.'
'The Hindenburg disaster might have been caused by a discharge of static electricity and helicopters have been known to explode
'Video of spider webs moving towards positive and negative electrodes by Fritz Vollrath: http://d3qk4vw19t7z2n. cloudfront. net/Electrostatic%20positive%20and%20negative hd. mp4story Source:
In addition to the bioinformatics analysis in the current study the team analyzed resistance to a panel of common antibiotics and tested the potential of different Burkholderia species to cause infection in laboratory conditions.
The study area has been subject to various alterations such as the addition of transmission lines roads and other human construction.
A 31 percent decrease in the likelihood of nesting by ravens was observed for every one kilometer increase in distance away from a transmission line
and transmission lines and in some cases providing sources of water and food we are subsidizing ravens
In addition to proximity to transmission lines ravens in the study area selected nest sites that were in close proximity to edges formed between sagebrush
and depredate nests of other bird species. The authors summarized that among all variables the distance to transmission lines distance to edge
The results of these findings pointed to further increases in raven abundance in formerly natural sagebrush steppe following alterations made by people specifically those associated with energy development and an expanding electric grid.
Poor livestock grazing management invasive species such as cheatgrass transmission lines energy development and subdivisions are all contributing to the loss of this vital resource.
as a result of grid development and that protecting unaltered landscapes from fragmentation by transmission lines roads crested wheatgrass plantings and the invasion of other nonnative vegetation is integral to stemming range expansion by ravens.
Other important factors include population density the carbon-intensity of electricity production energy prices and weather.
while in other locations it might be electricity food or goods and services. California for example has relatively low emissions associated with household electricity but large emissions from transportation.
The opposite is true in parts of the Midwest where electricity is produced largely from coal.
Tailored emission lowering strategies The real opportunity say the authors is tailoring climate solutions to demographically similar populations within locations.
Suburbs are excellent candidates for a combination of solar photovoltaic systems electric vehicles and energy-efficient technologies said Kammen.
All samples were tasted by pipette at the same lukewarm temperature 40.3  0. 2 °C a conductance index was calculated from the measured skin blood flow as a ratio of the mean arterial pressure.
and the conductance index values in their eyelids. These results suggest that the facial circulatory response reflects the degree of palatability of a foodstuff conclude the researchers.
The conductance index in the nose was not found to be related to palatability scores however bitter tea caused vasoconstriction in the nose.
Similar vasoconstriction in the nose has been observed in response to the discomfort of electrical stimulation of a finger or teeth.
but did not alter the conductance index as the mean arterial pressure also increased possibly via sympathetic activation.
and deploys park guards providing aerial and intelligence support and tracking where guards go what they see
Because this protein appears to be associated with resistance of the cancer stem cells to treatment with radiation
and very low in sodium so these drinks help maintain a healthy balance of electrolytes.
make it an electric vehicle (EV) and charge it up with power from your own rooftop solar array.
In many areas, third-party financing companies will install a solar photovoltaic PV system to generate electricity on your house for zero money down,
now that run on electricity, like hand-cranked kitchen tools and screwdrivers. Or consider other interesting inventions,
A small magnet can be used to attach it to a shirt, or an included attachment can be used to wrap it around the wearer's wrist.
sustainability meet on the robotic marijuana farm Invention may lead to greener power plants When it comes to packaging,
while sticks merely arouse resistance. Further, it makes no sense to simply clamp down on fossil-fuel emissions without replacing the displaced energy.
like a five megawatt project by esolar. Then they contracted with third-party financier Solarcity to install solar systems on several large city buildings,
Lancaster is now contemplating a second bond offering to fund a 50 megawatt solar farm on city property,
and Critical Path Transmission, a power line provider. The joint High Desert Power Authority intends to build a 40-mile
high voltage underground transmission cable across the Antelope Valley from Edwards AFB to a nearby transmission line.
000 megawatts of power to residents on the eastern fringe of the Los angeles megalopolis and pave the way for more renewable power generation in the desert.
To be sure, these projects probably wouldn't be happening without the $0. 15 per kwh PBI California state incentive for government projects,
Electric buses, electric light rail, and electric taxis or Zipcars could eventually displace the majority of their liquid fuel consumption at a far lower cost per mile traveled.
The vehicles themselves could be funded likewise by a municipal bond which could be retired fairly quickly, or perhaps by a tax assessment on merchants,
Switch city-owned fleet vehicles to electric or natural gas vehicles. Create municipal utility districts to drive the deployment of locally-generated energy.
But now that pot ale helps with the electricity bills, as feedstock for the distillery's new anaerobic digester.
Farmers use similar digesters to produce electricity from cow manure. Back to the Scotch. Bruichladdich makes around 46,000 cases of single malt whisky annually.
In addition to their previous transportation costs, their new disposal strategy reportedly saves the distillery almost $250, 000 a year on electricity.
Our farting microbes are farting methane to power our generator which in turn feeds into the distillery's electrical distribution network this also fuels Reynier's electric car.
Earlier this spring, the UK government approved of a 10-megawatt tidal array for the waters off Islay.
In somewhat similar ventures as Bruichladdich's, Helius Energy recently announced plans to build a 7. 2-megawatt power plant in Speyside that will burn whiskey waste and woodchips, providing about 9, 000 homes
with electricity. Beverage giant Diageo is also currently constructing a $150-million bioenergy plant in Fife to capitalize on their whiskey waste
The office will run on it's own on-site central power plant, so it doesn â¢t have to depend on the city â¢s power grid for energy.
and Chinese environmental and work activists have protested against the company's previous reluctance to disclose supplier details.
Argentine greenhouse robot brings automation to the massesbuenos AIRES--The new Trakã Â r agricultural robot does not have the brains, firepower or complexity of one of the Transformers,
that carries a mild electonic charge of less than one volt. The unique part of this robot is guiding system.
or cameras and algorithms or satellite GPS, this is guided by a cable that emits a electromagnetic signal.
And there â¢s no danger of electrocution or electric shock because only a very low voltage passes through it, Masiã ¡
which looks a little like a smaller version of the electrical panel you might find in your garage.
Solar panel discs bloom at the end of 16-foot fronds. When charged with six hours of sunlight, they can shine for nearly 10 hours straight.
The Mexican version, called Na2light, draws its power from 11 solar cells of 15 watts apiece for a total of 165 watt-hours of energy.
when you combine two light bulbs, a bucket of water, and a solar panel? According to Agrisolar, a lot of dead bugs.
By day, a solar panel charges a battery. By night, the battery (set on a timer) powers a pair of patented light bulbs that lure insects in with one attractive wavelength
Research suggests solar panels themselves can beckon bugs to their doom, but Agrisolar relies on wavelengths between 361 and 368 nanometers.
Death by solar panel: a bug's life Farmigo: a social network for fresh, cheap food Weed killer causes new cancer fears;
We have to overcome reluctance about public-private partnerships. We need financing. We know that that is of the essence.
it's time for the health sector to get involved Earthquake could threaten California water supply Invention may lead to greener power plants Accidental environmentalist designs furniture from invasive species
Why put tons of solar panels on a roof when you can make the building efficient in the first place?
Bioluminescent bacteria may soon provide lighting, free of electricity from the grid. Bacteria attached to walls will grow in decorative patterns
where carbon-reduction targets are driving power utilities--particularly coal-fired power plants--to mix more wood pellets into their fuel supply.
Under current targets, many European countries will need to generate 35 percent or more of their electrical power from renewable sources by 2020.
whose 4, 000-megawatt coal-fired power plant generates about 7 percent of the UK's electricity.
He said that of the country's 85 gigawatts (that's 85,000 megawatts) of power generation capacity,
including 24 gigawatts of coal capacity (because it can't meet emissions standards) and 5 gigawatts of nuclear capacity (because it's reached the end of its life).
Drax's state-of-the-art plant runs at nearly 40 percent efficiency, and currently gets about 12.5 percent of its fuel--1. 2 million tonnes (Mt) per year--from wood pellets.
Luke Hanley is a big believer in harnessing solar energy to produce electricity. Doing it more efficiently is his goal.
In my old apartment, my electricity and gas accounted for approximately 28,834 lbs. of carbon dioxide per year.
who've shown increased resistance to illness after drinking the milk. No word yet on when it will enter clinical testing in humans. via Co. Exist Photo:
These employees can also be found working away on the side of California freeways, at state parks, under long-distance electric lines,
as people are able to manage consumption of resources (electricity, water, food, even bandwidth) in ways that place less of a burden on the environment while saving households money.
and resistance from entrenched technologies. Bottom line: There's still a lot of work to be done, and it will probably take more than a decade to get to the point where homes are successfully talking to utilities, and vice versa.
then created a feast using little or no electricity. In a famously competitive profession, they became fast friends.
The quality of other Lowcountry crops deteriorated as growers prioritized disease resistance and transportability over flavor.
since the 1970s to the increased use of more efficient irrigation systems and alternative technologies at power plants.
Thankfully, the average amount of water withdrawn to produce a kilowatt-hour of electricity in the U s. has decreased steadily from 1950 to 2005,
owing to an increase in the number of power plants using alternatives to wasteful once-through cooling,
All electricity in the building is generated and fueled by pure, unrefined canola oil, and in a world first, urine will be collected from purpose-built lavatories to be used as soybean
New tech converts junk plastics into fuel Solar-powered trash cans World s cheapest light bulb Printable paper solar panels New battery can recharge itself using sunlight The future
Yes, the idea of transformers is not new, but a roller/chopper hybrid is. The robot s researchers, Alex Kossett and IEEE Fellow Nikolaos Papanikolopoulos of the University of Minnesota's Center for Distributed Robotics, are working on an upgraded version in
and new herbicide-tolerant crops that they hope will halt the advance of weed resistance and silence critics.
sustainability meet on the robotic marijuana farm Invention may lead to greener power plants Accidental environmentalist designs furniture from invasive species Reuse and recycling, a modest proposal 10 steps toward making your home
In different applications, some will use all electric engines. Some have experimented with natural gas engine. But for the most part the trains that runs across the country are using diesel.
those organizations cut their electricity consumption by more than 70 kilowatt hours, the equivalent of taking about 54,000 metric tons of carbon dioxide emissions out of the atmosphere.
of course--notably those involving enabling energy efficiency, electrical vehicle infrastructure, more cost-effective renewable energy technologies,
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