| Star (1) |  |
| Stars (89) | |
A team at the University of Groningen has demonstrated a way to switch off antibiotic agents after just a few hours using warmth or sunlight.
or exposed to sunlight, they reverted to the Z-form, which is all but useless as an antibiotic.
Flower power, a device due to be launched towards the end of this year by Paris-based wireless tech company Parrot, measures sunlight, soil moisture, temperature and nutrient levels in plants,
and whether they should be moved to change sunlight levels. Flower power and related technologies could be vital in developing countries with dry climates.
#Smart sensors that harvest power from sun heat or vibrations European researchers have developed advanced energy harvesting technology that allows wireless sensor networks to power themselves from the sun, heat or vibrations.
But what if sensors could harness energy directly from their environment from the sun, from ambient heat, from radio waves or vibrations?
"Harvesting the sun, vibrations and radio waves The SWAP team are studying, testing and deploying novel technologies that enable sensors to use solar
It demands a lot of sun, good soil, water and cold temperatures. But how do you install an environmentally friendly and sustainable cooling system in a country so warm?
"We all get heat from sun. We feel it on our bodies when it's warm,
but who ever heard of getting cold from sun? That's what MEDISCO is about.
The process involves single axis tracking concentrating collectors that essentially orient panels towards the sunlight.
#From sunlight to jet fuel: EU project makes first'solar'kerosene An EU-funded research project called SOLAR-JET has produced the world's first'solar'jet fuel from water and carbon dioxide (CO2), a promising technology for a better
using simulated sunlight. However, the results give hope that in future any liquid hydrocarbon fuels could be produced from sunlight
CO2 and water. The process In a first step concentrated light-simulating sunlight-was used to convert carbon dioxide
and water to synthesis gas (syngas) in a high-temperature solar reactor containing metal-oxide based materials developed at ETH Zürich.
Although producing syngas through concentrated solar radiation is still at an early stage of development, the processing of syngas to kerosene is already being deployed by companies,
The researchers say this technology would be useful in places where sun and radio waves can t always penetrate such as inside walls
and his team to absorb specific nonvisible wavelengths of sunlight. e can tune these materials to pick up just the ultraviolet
That is roughly the same efficiency at which the best commercially available solar cells convert sunlight into electricity.
#Panasonic#s new technology purifies water with sunlight and photocatalysts Drinking clean water is something that many people in the world can't take for granted as they rely on polluted sources
In response to that problem Panasonic is developing a new technology that looks to the sun to clean water extracted from the ground.
The company recently presented a system that uses sunlight and photocatalysts to purify polluted water at a high reaction rate to improve access to clean water where it's needed.
##But the maximum radio frequency intensity of the transmission##is only one-fourth that of sunlight,##according to former NASA wireless power transmission engineer Richard Dickinson.
Using solar wind, and other forms of passive energy, our future water networks will be operate with far more efficiency and convenience than anything imaginable today.
It will generate between 1-3 Gallons Water/day depending on the humidity conditions and sun conditions.
#New LED light technology sheds light on the future of food LED growing lights, delivering sunlight whatever the weather.
Plants typically make use of only about 10 percent of the sunlight available to them,
#Toward a low-cost'artificial leaf'that produces clean hydrogen fuel For years scientists have been pursuing artificial leaf technology a green approach to making hydrogen fuel that copies plants'ability to convert sunlight into a form of energy they can use.
Peidong Yang Bin Liu and colleagues note that harnessing sunlight to split water and harvest hydrogen is one of the most intriguing ways to achieve clean energy.
Producing hydrogen at low cost from water using the clean energy from the sun would make this form of energy
and exposed to sunlight produces hydrogen gas. The scientists say that the technique could allow their technology to be scaled up at low cost.
Last spring Fan received a proof-of-concept grant from the Department of energy through the North Central Regional Sun Grant Center to determine
Sun Grant promotes collaboration among researchers from land-grant institutions government agencies and the private sector to develop
Professor Evans and his team have all of the membrane proteins required to construct a fully working mimic of the way plants capture sunlight.
Researchers have known long that some single-celled organisms use a protein called bacteriorhodopsin (br) to absorb sunlight
If the researchers wanted to power their generators with sunlight, they'd need to improve on that.
It's a pitfall that could be important to understand in the development of long-lasting solar cells where sun could provide risky heat into the equation.
#Urban vegetable garden system with LED lighting Keystone Technology LED vegetable garden system is a cultivation system for indoor plant factories that uses LED lighting instead of sunlight.
and does not have the coarse quality of lettuce grown in sunlight. Because it is softer it is a vegetable that is easy to eat even for elderly people.
and polyphenols than with vegetables grown in sunlight. ith this system there will be differences in production capacity depending on the shape of the plant.
whereas waves in natural sunlight vibrate in all directions. Manipulating the polarization of light is essential for the operation of advanced microscopes, cameras and displays;
#Bioadhesive Nanoparticles Help Protect Your Skin From the Sun Dermatologists from Yale university have developed a new sunscreen made with bioadhesive nanoparticles that doesn penetrate the skin,
Further field tests are necessary to see how the nano-dispensers perform in sunlight varying temperatures and humidity levels.
too much sun can be worse than too little. The fact that chlorophyll absorption spectrum makes things surprisingly green reflects the compromises inherent in being able to capture every photon possible
000 suns The latest in solar power comes to us from Swiss inventors working for Airlight Energy, Dsolar (a subsidiary of Airlight),
it tracks the sun and cools itself by pumping water through its veins like a plant.
this method entails using reflectors to concentrate the sun, as well as highly efficient photovoltaic cells (known as gallium arsenide photovoltaic cells) to convert that concentrated solar energy into electricity.
According to Gianluca Ambrosetti, Airlight's head of research, the Solar Sunflower's reflectors concentrate the sun"to about 5, 000 suns."
000 suns. To counteract this, the Sunflower makes use of a hot water cooling system invented by the project's IBM collaborators.
HILLS AND POTHOLESMANY of these types of flexible electronic devices will rely on thin films of organic materials that catch sunlight
2015first superconducting graphene created by UBC researchers September 9th, 2015hybrid solar cell converts both light and heat from sun's rays into electricity (video) September 9th,
Understanding motions of thin layers may help design solar cells, electronics and catalysts of the future September 10th, 2015hybrid solar cell converts both light and heat from sun's rays into electricity (video) September 9th,
The sun is an abundant and practically infinite source of energy, so researchers around the world are racing to create novel approaches to"harvest"clean energy from the sun or transfer that energy to other sources.
This week in the journal Applied Physics Letters("Metamaterial electromagnetic energy harvester with near unity efficiency"),researchers from the University of Waterloo in Canada report a novel design for electromagnetic energy harvesting based on
Using the sun instead of fossil fuels to power a desalination plant isn't a totally new idea.
since the sun's rays don't reach that far. But each GENESI node and sensor includes a miniature wind turbine that harvests energy from passing trains.
It works with solar radiation and the cooling is achieved by means of a thermodynamic adsorption-desorption cycle lasting 24 hours.
which plants use the energy in sunlight to synthesize carbohydrates from carbon dioxide and water. However
"When sunlight is absorbed, photo-excited electron? hole pairs are generated in the silicon and titanium oxide nanowires,
the Berkeley team achieved a solar energy conversion efficiency of up to 0. 38-percent for about 200 hours under simulated sunlight,
under the sunlight, a small portion of solar energy(<1 percent) captured by chlorophyll is emitted as fluorescence.
because it is obscured by the much higher intensity of solar radiation. The group discovered a few wavelengths of light that allow measuring the specific fluorescence signal from photosynthesis. The team's fluorescence measurement system can record radiation at high resolution with a frequency of 5 minutes,
which plants use the energy in sunlight to synthesize carbohydrates from carbon dioxide and water. However
Yang says. hen sunlight is absorbed, photo-excited electron#hole pairs are generated in the silicon and titanium oxide nanowires,
With this approach, the Berkeley team achieved a solar energy conversion efficiency of up to 0. 38-percent for about 200 hours under simulated sunlight,
whereas waves in natural sunlight vibrate in all directions. Manipulating the polarization of light is essential for the operation of advanced microscopes, cameras and displays;
Over the years scientists have been very successful at making complex 3d shapes from DNA using diverse strategies said Wei Sun a postdoctoral scholar in the Wyss'Molecular Systems Lab
and functionally-relevant materials such as gold and silver Sun said. Just as any expanding material can be shaped inside a mold to take on a defined 3d form the Wyss team set out to grow inorganic particles within the confined hollow spaces of stiff DNA NANOSTRUCTURES.
Evans and his team have all of the membrane proteins required to construct a fully working mimic of the way plants capture sunlight.
#Innovative solar-powered toilet ready for India unveiling A revolutionary University of Colorado Boulder toilet fueled by the sun that is being developed to help some of the 2. 5 billion people around the world lacking safe and sustainable sanitation
The CU-Boulder invention consists of eight parabolic mirrors that focus concentrated sunlight to a spot no larger than a postage stamp on a quartz-glass rod connected to eight bundles of fiber-optic cables each consisting of thousands of intertwined fused
The energy generated by the sun and transferred to the fiber-optic cable system--similar in some ways to a data transmission line--can heat up the reaction chamber to over 600 degrees Fahrenheit to treat the waste material disinfect pathogens in both feces and urine and produce char.
Since her system is powered by the sun, operational and maintenance costs are fairly minimal: The system requires an occasional cartridge filter change,
a former electronics engineer with IBM and Sun who got the idea for a water-monitoring system
"To predators, the bioluminescence is very similar to the light coming from the moon and stars at night,
That finding dispels concerns that the genetic material will quickly degrade in rain and sunlight. In the proof-of-principle study researchers wanted to answer
which is found in the sun rays and breaks down many materials. They discovered that under such direct exposure,
A few feet below the surface, plenty of sunlight still filters in, the temperature is kept at a stable 25°C (77°F) by the sea,
which received Lux Awards 2014 Light source Innovation of the Year, can fill a room ceiling mimicking sunlight from different latitudes, from the equator to Northern europe.
The key to its success in replicating a sunny sky uses nanostructured materials to scatter light from LEDS in the same way tiny particles scatter sunlight in the atmosphere so-called Rayleigh scattering.
and they are sensitive to alkaline and sunlight, and they have strength limitations. According to Amir Behzadnia, one of the researchers, this study was carried out aiming to improve the properties of woolen products through special finishing process,
Water splitting combines sunlight and water in a chemical reaction in order to harvest clean hydrogen energy. By smoothing the surface of hematite,
Since her system is powered by the sun, operational and maintenance costs are fairly minimal: The system requires an occasional cartridge filter change,
iodide and methylammonium could convert sunlight into electricity with an efficiency of 3. 8 percent.
Sunlight to electricity Solar cells work by converting photons of sunlight into an electric current that moves between two electrodes.
a finding that dispels previous concerns that the genetic material would quickly degrade in rain and sunlight.
which is found in the sun rays and breaks down many materials. They discovered that under such direct exposure,
< Back - Next >
Overtext Web Module V3.0 Alpha
Copyright Semantic-Knowledge, 1994-2011