or differences in how much energy it takes to excite an electron in the material.""When we put them together,
which requires 100 times less energy than present devices, has the potential to hit all the marks."
Scientists want to convert such biopolymers to free the useful sugars and release energy An earlier instrument,
"The focused light delivers energy to the sample, creating a special interaction between the point and the sample in
The research was supported primarily by the Department of energy's Basic energy Sciences program m
#Flexible, biodegradable device can generate power from touch (video) Longstanding concerns about portable electronics include the devices'short battery life and their contribution to e waste.
& Interfaces the development of a biodegradable nanogenerator made with DNA that can harvest the energy from everyday motion and turn it into electrical power.
and tapping on our keyboards release energy that largely dissipates, unused. Several years ago, scientists figured out how to capture some of that energy
and convert it into electricity so we might one day use it to power our mobile gadgetry.
To improve the material's energy harvesting ability, they added DNA, which has good electrical properties
For energy devices we have demonstrated solution-processable approaches to fabricate organic photovoltaic devices on nearly arbitrary surfaces including PET and polymer reinforced polymer composites.
the U s. Department of energy (DOE) Energy Innovation Hub had one main goal: a cost-effective method of producing fuels using only sunlight, water,
and storing energy in the form of chemical fuels for use on demand. Over the past five years, researchers at JCAP have made major advances toward this goal,
or artificial leaf, is described in the August 24 online issue of the journal Energy and Environmental science.
converts 10 percent of the energy in sunlight into stored energy in the chemical fuel,
And then, with this enhanced view,"this energy barrier can be eliminated entirely, "the team writes.
which the absorbed energy (exciton) migrates through the system prior to splitting into charges that are converted to electricity."
This allows organic thin films to carry energy along this molecular highway with relative ease,
a figure that represents a significant gain in energy production. The researchers said the new transparent thermal overlays work best in dry, clear environments,
In many conventional techniques such as transmission electron microscopy, the possible resolution is limited by high-energy electrons'radiation damage to biological samples.
and the battery can't store as much energy.""Dendrites are hazardous and reduce the capacity of rechargeable batteries,
By quantifying how much energy is needed to change the structure of the dendrite, Aryanfar said, researchers can better understand its structural characteristics.
or against particular axis."Superconducting spintronic devices will demand far less energy and emit less heat.
whose energy consumption and heat emission create much more problems than in case of ordinary desktop computers.""Development of computer technologies was based on semiconductors.
or high-energy reservoir of electrons. Lithium can do that, as the charge carrier whose ions migrate into the graphite
"It's safe to say that the energy density of a potassium-ion battery may never exceed that of lithium-ion batteries,
Mcmaster engineers build better energy storage device Mcmaster Engineering researchers Emily Cranston and Igor Zhitomirsky are turning trees into energy storage devices capable of powering everything from a smart watch to a hybrid car.
an organic compound found in plants, bacteria, algae and trees, to build more efficient and longer-lasting energy storage devices or supercapacitors.
and Zhitomirsky, a materials science and engineering professor, demonstrates an improved three-dimensional energy storage device constructed by trapping functional nanoparticles within the walls of a nanocellulose foam.
The fast-charging devices allow for significant energy saving, because they can accumulate energy during braking and release it during acceleration."
"I believe that the best results can be obtained when researchers combine their expertise, "Zhitomirsky says."
and the energy costs are expected to be said extremely low Kai Liu, professor of physics at UC Davis and corresponding author of a paper on the work, published in the journal Nature Communications Oct 8.
That means they can potentially store information at an energy cost much lower than current technology,
In Science Advances, the researchers report the discovery of an optical effect that allows them to"tune"the energy of electrons in these materials using light,
With that knowledge, Sykes and his fellow chemists turned to long-time Tufts collaborator Maria Flytzani-Stephanopoulos, Ph d.,the Robert and Marcy Haber Endowed Professor in Energy Sustainability at the School of engineering,
"The tunnel effect enables us to move electrons through the ultra-thin layer with very little energy,
If one adds energy to an atom-one says that the atom is excited--it normally takes some time before the atom loses energy and returns to its original state.
Just like a natural atom, you can charge it with energy; excite the atom; which it then emits in the form of light particles.
Iranian researchers from Materials and Energy Research center (MERC) succeeded in the production of a type of biocompatible nanocomposite with the ability to carry drugs,
i e. the electrons can have different states at the same energy level. The superposition of several anyons cannot be affected without moving them,
because much of the energy pumped into them is converted to light as opposed to heat.
when pumped with energy, changes very quickly from a transparent insulating state to a reflective metallic state.
sensitivity, cost, energy loss and human resources. The system designed in this research is complicated less in comparison with other diagnosis methods,
where an additional amount of energy is required to strip electrons out of the material. For decades, scientists have debated the origin of the pseudogap
"Crystallites that experience higher external pressures will have a greater free energy change associated with the phase transition
Chuanbao Cao and colleagues note that carbon is a key component in commercial Li-ion energy storage devices including batteries and supercapacitors.
but it has limited a energy capacity. To improve the energy storage, manufacturers are looking for an alternative material to replace graphite.
Cao team wanted to see if they could develop such a material using a sustainable source.
The researchers found a way to process natural silk to create carbon-based nanosheets that could potentially be used in energy storage devices.
#New metal-organic framework material captures carbon at half the energy cost UC Berkeley chemists have made a major leap forward in carbon-capture technology with a material that can
potentially cutting by half or more the energy currently consumed in the process. The released CO2 can then be injected underground,
the process also saves the huge energy costs of heating the water in which amines are dissolved.
"Considering the massive use of vehicles, a small gain in efficiency has a big impact in saving energy and reducing carbon emissions annually."
"The combination of friction and mechanical pressure enhances the probability of chemical reactions by reducing the energy needed to break
where the position or energy of a particle exists in two or more states at the same time and entanglement,
and draw motional energy out of it at the same time. However since the laser light can sometimes actually heat the objects up this method has not been shown to work before."
#Energy-generating nanopatterened cloth could replace batteries From light up shoes to smart watches, wearable electronics are gaining traction among consumers,
flexible cloth that harnesses human motion to generate energy. It can also self-charge batteries
A new kind of material can harness energy from human movement and use it to light up a small LCD display.
long-lasting energy source that is seamlessly incorporated into the device's design. For a possible solution, Kim's team turned to the emerging technology of"triboelectric nanogenerators,
which harvest energy from everyday motion. The researchers created a novel TNG fabric out of a silvery textile coated with nanorods and a silicon-based organic material.
it captured the energy generated from the pressure. The material immediately pumped out that energy,
which was used to power light-emitting diodes, a liquid crystal display and a vehicle's keyless entry remote. The cloth worked for more than 12,000 cycles.
scientists at DOE's Joint Center for Energy storage Research (JCESR) designed and implemented a small device, known as an operando electrochemical stage.
Also, one day, such systems could store energy from wind and solar stations, making the intermittent energy available when needed d
New materials for energy application, new concepts for medical surfaces, new surface materials for tribological applications and nano safety and nano bio.
But desalination is an energy-intensive process, which concerns those wanting to expand its application.
who co-led the study with Ivan Vlassiouk in ORNL's Energy and Transportation Science Division."
requires a significant amount of energy. Reverse osmosis, a more energy-efficient process that nonetheless requires a fair amount of energy,
is the basis for the ORNL technology. Making pores in the graphene is key. Without these holes, water cannot travel from one side of the membrane to the other.
"That all serves to reduce the amount of energy that it takes to drive the process."
Supported by Northwestern's Materials Research Science and Engineering Center and the Institute for Sustainability and Energy at Northwestern,
atomlike energy levels that can be probed using green laser light. Like atomic systems, the NV centers can be used as a qubit.
or motors with soft and lightweight properties that can undergo large active deformations with high-energy conversion efficiencies.
Reporting this week in the journal Applied Physics Letters("Phenomena of nonlinear oscillation and special resonance of a dielectric elastomer minimum energy structure rotary joint"),researchers from the Harbin Institute of technology in Weihai, China
The dielectric elastomer actuator Zhao used is called a"dielectric elastomer minimum-energy structure""which is composed of a thin elastic frame and pre-stretched dielectric elastomer films,
balancing at a minimum energy state. When applying kilovolts of low-current electricity on the dielectric elastomer,
which makes dielectric elastomer minimum-energy structures a useful structure for fabricating soft devices, Zhao said.
Also, since dielectric elastomers feature high energy density (seventy times higher than conventional electromagnetic actuators) and high-energy conversion efficiency (60 to 90 percent), they could be good candidates for making energy-efficient devices,
"This would translate into huge energy savings on an industrial scale. l
#Scientists get 1 step closer to finding how to repair damaged nerve cells A team of researchers at the IRCM led by Frdric Charron, Phd,
which had no moving parts (Fig. 1) and no energy storage device other than a thin elastic outer membrane.
When a fish escapes by swimming fast, it bends its body and zooms through the water, losing some energy to the surrounding water
and recovering about 30%of the energy. An octopus, on the other hand, uses more effectively, energy recovery mechanism to power its ultra-fast escape,
and is able to recover more than 50%of the energy available at the beginning. Hence, rendering this octopus robot highly energy efficient.
Underwater'robot'with 3d printed hull and elastic membrane demonstrates ultra-fast escape inspired from Octopus.
With further R&d, future AUVS and other marine vehicles can adopt this mechanism to help it evade threats or track something fast stealthily underwater without the need for much energy.
who is an affiliate of the Stanford Institute for Materials and Energy Sciences at SLAC.
energy and for building construction could soon arise, thanks to a key advance in understanding the structure of wood.
energy and for building construction"."Professors Ray and Paul Dupree have discussed the possibility of working together to solve outstanding questions in plant biochemistry for twenty years.
The chemical industry is undergoing a major transformation as a consequence of unstable energy costs, limited natural resources and climate change.
more sustainable forms of energy as well as using biotechnology techniques to produce synthetic chemicals are currently being developed at The University of Manchester.
#Harvesting energy from electromagnetic waves (Nanowerk News) For our modern, technologically-advanced society, in which technology has become the solution to a myriad of challenges,
energy is critical not only for growth but also, more importantly, survival. 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
"More than 80 percent of our energy today comes from burning fossil fuels, which is both harmful to our environment and unsustainable as well.
"Now, our technology introduces'metasurfaces'that are much better energy collectors than classical antennas, "explained Omar M. Ramahi, professor of electrical and computer engineering.
The particular dimensions of these patterns and their proximity to each other can be tuned to provide"near-unity"energy absorption.
This energy is channeled then to a load through a conducting path that connects the metasurface to a ground plane.
"We can also channel the absorbed energy into a load, rather than having the energy dissipate in the material as was done in previous works."
"As you can imagine, this work has a broad range of applications. Among the most important is space solar power,
an emerging critical technology that can significantly help to address energy shortages. It converts solar rays into microwaves--using conventional photovoltaic solar panels--and then beams the microwave's energy to microwave collector farms at designated locations On earth.
Japan is way out in front of rest of the world in this realm, with plans to begin harvesting solar power from space by 2030."
"This results in a significant reduction of the energy harvesting surface footprint. Real estate is a precious commodity for energy absorption
--whether it's wind, hydro, solar or electromagnetic energy.""Other key applications include"wireless power transfer--directly adaptable to power remote devices such as RFID devices and tags or even remote devices in general,"Ramahi noted.
Thus, the energy absorbed from light is efficiently and rapidly converted into electron heat. Next, the electron heat is converted into a voltage at the interface of two graphene regions with different doping.
the acib method replaces chemical synthesis-an energy-consuming and anything but environmentally friendly process.
which designs and builds organisms able to make useful products such as medicines, energy, food, materials and chemicals.
and energy to perform. What are these functions? Well, youe performing some of them right now.
the resulting device would have to be loaded enormous with multitudes of transistors that would require far more energy. lassical computers will always find an ineluctable limit to efficient brain-like computation in their very architecture,
however, many more memristors would be required to build more complex neural networks to do the same kinds of things we can do with barely any effort and energy,
it takes an increase in energy for the electron to continue flowing. As a result, they are reflected often,
Subramanian Sankaranarayanan and Sanket Deshmukh at CNM used the high-performance computing resources at DOES National Energy Research Scientific Computing Center and the Argonne Leadership Computing Facility (ALCF), both
or differences in how much energy it takes to excite an electron in the material. hen we put them together,
new approaches are necessary to increase throughput and, at the same time, curb power consumption. Plasmonic components could make a decisive contribution to this end.
releasing as much energy in a few seconds as the Sun does over its 10 billion year lifetime.
and more efficient displays. ince screens consume large amounts of energy in devices like laptops, phones,
and tablets, our approach could have a huge impact on energy consumption and battery life, she noted. f you start with polarized light,
and convert carbon dioxide in a way that ultimately saves energy. They call it a copper tetramer. It consists of small clusters of four copper atoms each, supported on a thin film of aluminum oxide.
But compressing gas into a high-pressure mixture takes a lot of energy. The benefit of enhanced binding is that the new catalyst requires lower pressure
and less energy to produce the same amount of methanol. Carbon dioxide emissions are an ongoing environmental problem,
especially in terms of saving energy,"said Larry Curtiss, an Argonne Distinguished Fellow who co-authored this paper.
focusing their energy into a tight spot. When the material is a metal, that spot also becomes very hot.
which requires 100 times less energy than present devices, has the potential to hit all the marks."
"When planets coalesce, material falling into the planet releases energy and heats it up. Over the next hundred millions years they radiate that energy away,
mostly as infrared light,"says Macintosh. Once the astronomers zeroed in on the star, they blocked its light
because a jump between two tightly-packed stones requires less energy. A band gap is much the same;
#Engineers'sandwich'atomic layers to make new materials for energy storage The scientists whose job it is to test the limits of what nature--specifically chemistry--will allow to exist, just set up shop on some new real estate on the Periodic table.
Drexel University researchers are testing an array of new combinations that may vastly expand the options available to create faster, smaller, more efficient energy storage, advanced electronics and wear-resistant materials.
because it represents a new way of combining elemental materials to form the building blocks of energy storage technology--such as batteries, capacitors and supercapacitors,
or more, of these new materials will exhibit energy storage and durability properties so disproportional to its size that it could revolutionize technology in the future."
"As far as energy storage materials go, MXENES were a revelation. Prior to their discovery, graphene,
and therefore had limited energy storage capabilities. The new MXENES have surfaces that can store more energy.
An Elemental Impasse Four years later, the researchers have worked their way through the section of the Periodic table with elements called"transition metals"
while testing their energy storage properties. Anasori's discovery comes at a time when the group has encountered an obstacle on its progress through the table of elements."
which could unearth a vein of new physical properties that support energy storage and other applications.""This level of structural complexity,
This roximity magnetismeffect could create an energy gap, a necessary feature for transistors, in a topological insulator, making it possible to turn a device off and on as a potential building block for spintronics,
require little energy and their small footprint offers large storage capacity all these attributes make them well suited to new data storage applications or high-resolution displays.
or changes in the flow of energy from the power source, or even provide protection against extreme temperatures and device failures.
"Our second-best prototype had 90 percent efficiency-less than 10 percent of the energy was wasted, "Dean says."
will be presented at the IEEE Energy conversion Congress & Expo being held Sept. 20-24 in Montreal, Canada a
and director of the Kavli Energy Nanoscience Institute (ENSI), was the co-leader of this research.
The Cdse/Cds nanoparticles enabled us to decouple absorption from emission energy and volume, which in turn allowed us to balance absorption
The LCS work reported in this story was carried out through the U s. Department of energys Energy Frontier Research center program and the National Science Foundation n
The researchers calculated how the atomsinherent energies force hexagons to take on or lose atoms to neighboring rings,
and is a member of the Kavli Energy Nanosciences Institute at Berkeley (Kavli ENSI), is the corresponding author of a paper describing this research in Science("An ultrathin invisibility skin cloak for visible light").
Another drawback is that their energy consumption is reaching unacceptable levels. It is obvious that one has to look for alternative directions
"Another important advantage may be that this type of circuitry uses much less energy, both in the production,
thanks to the electron beam energy being kept below the radiation damage threshold of tungsten. Miao and his team showed that the atoms in the tip of the tungsten sample were arranged in nine layers, the sixth
Miao and his team plan to build on their results by studying how atoms are arranged in materials that possess magnetism or energy storage functions,
and reduce their energy consumption. Together with all-optical connections, they might reduce latencies. Energy-intensive conversion of optical signals into electronic signals and vice versa would no longer be required
#Pushing the limits of lensless imaging Using ultrafast beams of extreme ultraviolet light streaming at a 100,000 times a second, researchers from the Friedrich Schiller University Jena,
#Small-scale nuclear fusion may be a new energy source Fusion energy may soon be used in small-scale power stations. This means producing environmentally friendly heating
whereby atomic nuclei melt together and release energy. Because of the low binding energy of the tiny atomic nuclei, energy can be released by combining two small nuclei with a heavier one.
A collaboration between researchers at the University of Gothenburg and the University of Iceland has been to study a new type of nuclear fusion process.
It has already been shown to produce more energy than that needed to start it. Heavy hydrogen is found in large quantities in ordinary water
The energy in the neutrons which accumulate in large quantities in other types of nuclear fusion is difficult to handle
These neutrons are high-energy and very damaging to living organisms, whereas the fast, heavy electrons are considerably less dangerous."
#Highest efficiency hydrogen production under natural sunlight Researchers at the University of Tokyo and Miyazaki University have produced hydrogen under natural sunlight at an energy conversion efficiency of 24.4,
In order to increase Japan use of renewable energy at a substantial fraction in the total energy demand, it is vital to develop technologies for the high efficiency
%The researchers also reduced energy loss by improving the connection between the CPV modules and electrolyzers, resulting in a solar-to-hydrogen energy conversion efficiency above 24%.
rather than solely to the laser's wavelength, demonstrating that the plasmons effectively nudged the electrons in Mos2 into a different energy state."
the energy was converted into plasmons, a form of electromagnetic wave that travels through oscillations in electron density.
This energy electronically excited an electron once it reached the molybdenum disulfide-covered end effectively generating a current.
leading to increased dissipation of energy and the need to develop new design principles. In the model microscopic system developed by scientists from Bristol
a liquid-like scenario in which much of the energy input is lost to friction and an intermediate slipping scenario unique to soft materials
or high-energy reservoir of electrons. Lithium can do that, as the charge carrier whose ions migrate into the graphite
"It's safe to say that the energy density of a potassium-ion battery may never exceed that of lithium-ion batteries,
They used the high-performance computing resources of the National Energy Research Scientific Computing Center (NERSC),
"The tunnel effect enables us to move electrons through the ultra-thin layer with very little energy,
Organisms such as barnacles and algae create drag and increased energy expenditure, not to mention the costs of cleaning
#Buildings producing their own energy prepared for tomorrow's cities An innovative façade, able to turn solar energy into heat for residentsuse,
and will prove its capabilities in real-life conditions The worldwide energy consumption of buildings is expected to grow by 45%from 2002 to 2025,
To reduce energy demand in old buildings across Europe, a consortium of researchers has designed an industrialised façade system for use in retrofitting works.
and façade orientations his system provides the tools for producing energy as well as insulating the building better:
already used by energy service companies (ESCOS), explains Galant. ESCOS are more often companies that belong to large energy utility groups.
They offer long-term contracts, of 20 years or more, where they cover the risk of a full refurbishment against the payment by the owners of a fixed yearly energy bill
which corresponds to the reduced energy needs of the refurbished buildings. The project researchers admit that their system is neither simple, nor cheap.
Yet Julen Astudillo is optimistic about the possibilities of the façade having a good return on investment.
how the energy can be used to break down water into oxygen (O2) and hydrogen (H2). This process is known as oxidation,
which are the main energy sources for the plant. His discovery generates exciting new prospects for how this process could be used to forge new energy sources in a carbon neutral way.
Potentially, hydrogen could be transported to other locations and burned as fuel.""In theory, this should be a self-sustaining energy source,
"Mendoza-Cortes said.""Perhaps in the future, you could put this material on your roof and it could turn rain water into energy with the help of the sun."But, unlike many other energy sources,
this won't have a negative effect on the environment.""You won't generate carbon dioxide or waste, "he said.
Mendoza-Cortes, a computational and theoretical chemist, said the challenge he faced was designing something that didn't rust from the process of breaking down water that also trapped the energy
Light with photo energy can penetrate indirect band gap materials much more easily without getting absorbed
'and has done that to focus its energies on being able to germinate and grow quickly, rapidly flower,
To make larger-scale energy storage more accessible, Maksym V. Kovalenko and colleagues wanted to develop an affordable alternative to lithium-ion.
inexpensive and high-energy density anode material and paired it with pyrite, which is made of iron and sulfur,
Testing showed that the resulting devices energy density was close to that of lithium-ion batteries. It could get an additional two-to threefold boost with further development of magnesium electrolytes.
it could one day help support grid-scale energy storage, the researchers say a
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