| Energy economics (1) |  |
| Energy revolution (1) | |
| Grid (46) | |
| Metamaterial (27) | |
| Plasma (34) | |
| Refrigeration (7) | |
| Storage system (2) | |
| Turbine (11) | |
| Units of energy (4) | |
| Energy economics (1) | |
| Energy revolution (1) | |
| Grid (46) | |
| Metamaterial (27) | |
| Plasma (34) | |
| Refrigeration (7) | |
| Storage system (2) | |
| Turbine (11) | |
| Units of energy (4) | |
designed to allow off-grid communities to share and store information in a variety of formats.
#Implants And Powering Them From Within Your heart expends half a joule of energy every time it beats.
Until now this has largely been solved by hooking them up to the grid or using batteries, but both approaches have considerable drawbacks.
Grid-connected sensors need cables, limiting where they can be used, and contribute to electricity consumption and CO2 EMISSIONS,
advances in refrigeration technology have struggled to offset the increasing number of units being introduced each year. For example, vending machine sales (EU-27) are expected to continue growing, from 126 000 in 2009 to 200 000 in 2020.
A fibre-optic grid monitors any deformations in the bag (signs of tearing or folding) during its sea voyage.
which in turn drives an absorption-refrigeration machine. This machine cools a water-glycol mixture up to negative temperatures of about-10°C."By using heat instead of electricity,
and tested by MEDISCO could really help the Mediterranean and indeed other areas with no conventional means of refrigeration due to a lack of water and nonexistent or unreliable energy sources y
and stored without refrigeration and it would produce answers by changing color so a person could read the answer by eye alone.
The design builds on existing technology and creates a magnetic field within a closed space to hold plasma in place long enough for fusion to occur allowing the hot plasma to react and burn.
The reactor itself would be largely self-sustaining meaning it would continuously heat the plasma to maintain thermonuclear conditions.
Heat generated from the reactor would heat up a coolant that is used to spin a turbine
The new design is known as a spheromak meaning it generates the majority of magnetic fields by driving electrical currents into the plasma itself.
The researchers have tested successfully the prototype s ability to sustain a plasma efficiently and as they further develop
and expand the size of the device they can ramp up to higher-temperature plasma and get significant fusion power output.
Terrestrial solar arrays have achieved grid parity Davis said, but without storage they cannot provide the baseload power utilities need.
Moisture is harvested out of the air to irrigate crops through an efficient system that produces large amounts of condensation A turbine intake drives air underground through a network of piping that rapidly cools the air to the temperature of the soil where it reaches 100%humidity
Ecoloblue has created an off-grid water harvester/dispenser specifically for the home or office. The unit shown above, the Ecoloblue 30,
If you wanted to look up the calorie content of a specific food you are eating you could take it to a lab and run it through a spectrometer.
because solar panels can return power to the grid and make your meter spin backwards. Japanese companies are fascinated with net-zero energy buildings,
The automaker has made a splash with its vehicle-to-grid technology but now it getting more serious with the Honda Smart home on the campus of the University of California at Davis
When associate professor Qi Hua Fan of the electrical engineering and computer science department set out to make a less expensive supercapacitor for storing renewable energy he developed a new plasma technology that will streamline the production of display screens.
and plasma technologies Fan was named researcher of the year for the Jerome J. Lohr College of Engineering.
Through this project Fan developed a faster way of treating the biochar particles using a new technology called plasma activation.
Treating means you use plasma to change the material surface such as creating pores Fan said.
The plasma treatment activates the biochar in five minutes and at room temperature Fan explained. Conventional chemical activation takes several hours to complete
Plasma processing is a very critical technology in modern optoelectronic materials and devices Fan explained.
The high-energy plasma can deposit highly transparent and conductive thin films create high quality semiconductors and pattern micro-or nanoscale devices thus making the display images brighter and clearer.
Fan will work with Wintek to develop a prototype plasma system. The activation method has the potential to improve production efficiency saving time and energy he noted d
Its energy harvesting capabilities come courtesy of a metamaterial a synthetic material engineered with characteristics not found in nature like the ability to bend light the wrong way
In this case the microwave-harvesting metamaterial that acts kind of like a solar panel converting microwaves into up to 7. 3 volts of electricity enough to charge small electronics.
and sound energy harvestingâ#according to Duke graduate student Alexander Katko one of the inventors. â##Until now a lot of work with metamaterials has been theoretical.
The store plans to use electricity solely from the digesters, taking no electricity from the U k.'s national power grid,
Sainsbury's will even sell any excess electricity it makes back to the grid. The Cannock Sainsbury's will be the first U k. store to stop using U k. grid electricity
the BBC reports. While we've never heard of a big U s. store doing exactly that,
It is essentially a single-sensor listening system that combines acoustic metamaterials and compressive sensing techniques. ifferent from previous research efforts that generally rely on signal
our proposed method is a unique hardware-based approach by exploiting carefully designed acoustic metamaterials,
he device with a compact array of resonant metamaterials is demonstrated to distinguish three overlapping and independent sources with 96.67%correct audio recognition,
An alternative fuel could be liquefied natural gas such as super-cold liquid methanethe big question now is how to create all of that hydrogen. ind turbines could actually store their energy by producing hydrogen,
and consume about 3 percent of the nation grid energy. Existing carbon capture technologies are energy-intensive and often entail costly transportation and storage procedures.
Team Ahaar developed an automated refrigeration truck to reduce postharvest waste. First place went to team Innovision from the University of Dhaka, Bangladesh who won $10,
Each magnet within the new metamaterial is shaped like a grain of rice and roughly 63 nanometers in length.
tailored phase transitions could enable metamaterials to be adapted specifically for different needs in future, "explains Heyderman.
but with its adaptability, this new metamaterial could be the wave of the future. Apart from facilitating information transfer,
2015materials/Metamaterials Molecular trick alters rules of attraction for nonmagnetic metals August 5th, 2015yolks and shells improve rechargeable batteries:
Organic molecules fixing the magnetic orientation of a cobalt surface/building block for a compact and low-cost storage technology/publication in Nature Materials July 25th,
Then the team exposed the graphene to an oxygen plasma that knocked carbon atoms out of the graphene's nanoscale chicken wire lattice to create pores.
The longer the graphene membrane was exposed to the plasma, the bigger the pores that formed,
So far, the oxygen plasma approach worked the best, "he added. He worries more about gremlins that plague today's reverse osmosis membranes--growths on membrane surfaces that clog them (called"biofouling)
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
"This involves the use of metamaterials that can be tailored to produce media that neither reflects nor transmits any power--enabling full absorption of incident waves at a specific range of frequencies and polarizations."
Despite the fact that all the treatments produced similar plasma OT increases compared with placebo, there was a main effect of treatment on anger ratings of emotionally ambiguous faces.
A laser-driven plasma wave accelerates and wiggles electrons, giving rise to a brilliant kev X-ray emission. his so-called betatron radiation is emitted in a collimated beam with excellent spatial coherence and remarkable spectral stability.
First, the laser pulse ploughs through a plasma consisting of positively charged atomic cores and their electrons like a ship through water, producing a wake of oscillating electrons.
"Classified as a metamaterial because it displays properties that have yet to be found in nature,
tailored phase transitions could enable metamaterials to be adapted specifically for different needs in future, "says Heyderman.
the so-called metamaterial exhibits phase transitions, much like those between steam, water and ice. This effect was observed by a team of researchers headed by Laura Heyderman from PSI."
the result of the new study also reveals that the PSI researchers'metamaterial would be a potential candidate here.
Thanks to a special measuring technique, the scientists initially studied the collective magnetic behaviour of their metamaterial at room temperature.
When the researchers cooled the metamaterial gradually and constantly, however, they reached a point where a higher order appeared:
tailored phase transitions could enable metamaterials to be adapted specifically for different needs in future, "explains Heyderman.
Besides its potential use in information transfer, the metamaterial might also prove useful in data storage or for sensors that measure magnetic fields.
and therefore the properties of the metamaterial, can only be conducted exclusively at PSI. The equipment at the S S,
The device is an'acoustic metamaterial a structure patterned with smaller features and designed to affect the acoustic waves that pass through it.
The challenge is to contain the hot plasma and keep it stable; the fusion reactors of today,
California, said in early August that it has succeeded in keeping a high-energy plasma stable for five millisecondsuch less than the blink of an eye,
that fires two clouds of plasma at each other to form a ring of plasma. The magnetic field that holds the ring together is generated by the plasma itself technique known as a field-reversed configuration.
The plasma is sustained by the injection of high-energy particles from accelerators. The challenge for Tri Alpha design, says Binderbauer,
is ot enough and long enough? keeping the plasma stable at a high-enough temperature to achieve energy-positive fusion.
The recent experiment indicated that the companyhich has attracted millions of dollars in funding from investors including Goldman sachs and Vulcan Inc,
Making the plasma hot enough is the next key challenge. Next year, Tri Alpha will begin building a new
At MIT Plasma Science and Fusion Center, a group headed by Dennis Whyte a professor of nuclear science and engineering and the center director, published a conceptual design in July for a machine called the ARC reactor (ffordable, robust, compact.
The novelty of the ARC design is the nature of the electromagnets that confine the plasma.
The researchers also envision a liquid lanketsurrounding the plasma that will absorb neutrons without damage
Increasing the amplitude of the surrounding magnetic field raises the amount of fusion power produced in the plasma to the fourth power dramatic increase that could lead to a commercial prototype in a matter of years,
Jonathan Menard, a plasma physicist at the Princeton Plasma physics Laboratory, directs the National Spherical Torus Experiment,
Their chunky, bright orange soles are made of an elaborate flexible grid of interwoven fibres which resembles a crushed honeycomb.
The tubes act as scaffolding for the grid of fabric to be built on top. To make the structure rigid
#Revolutionary tidal fence is set to trap the sea power A British company has announced plans for an array of unique marine turbines that can operate in shallower and slower-moving water than current designs.
says the turbines will in time produce electricity more cheaply than offshore wind farms. It hopes to install its new design in
The fence is a string of linked turbines each of which will start generating electricity as it is completed,
Because the turbines sit horizontally beneath the surface of the sea they can be sited in water shallower than the 30-metre depth typically required by current designs.
and will have 400 turbines. Its developers say it could create almost 5, 000 jobs during construction.
The Gallium nitride Energy revolution is About to Happencambridge Electronics, Inc. CEI), whose motto is"Dream it.
#Safe drinking water Via Solar power Desalination Natasha Wright, an MIT Phd student in mechanical engineering, has designed a solar powered system that makes water safe to drink for rural, off-grid Indian villages.
their designs are intended to be powered grid. When operating off the grid, these systems are not cost-effective,
essentially blocking disconnected, rural villages from using them. Wright solution offers an alternative to grid power:
She designed a village-scale desalination system that runs on solar power. Since her system is powered by the sun,
because excess wind and solar power creates a glut of power on the grid. Because power needs to be used as soon as it s generated to keep the grid stable prices are dropped sometimes to zero
so buyers can be found. Cheap electricity makes electrolysis far more competitive. Electrolysis remains more expensive than producing hydrogen from natural gas at least in the United states where natural gas is cheap.
and then letting it back down to drive a turbine. That approach is limited severely by geography
and the third-leading cause of death from food poisoning in the U s."It can grow under refrigeration,
fruits and soft cheeses that are stored under refrigeration.""Currently, the only means of detecting listeria bacteria contamination of food requires highly trained technicians
nixing any need to be connected to the local grid. The process starts with a nearby dairy, Four J Farms.
#The turbines WITHOUT blades: Firm unveils radical design that claims to be quieter and safer than traditional wind farms By Ellie Zolfagharifard For Dailymail. com Published:
Vortex Bladeless say they now want to create a commercial, 100-watt turbine to market in 2018. b
Despite reducing the calorie content, Douxmatok's food technologists found a way to retain the same energy content-an important factor for consumers. obody ever says really tired I need some aspartame for energy!
it also ensures energy economies, since thanks to the lesser volume needing to be evacuated smaller vacuum pumps can be installed.
That means that CAISO is operating the grid, this month, at net load (that is the system demand less solar and wind generation) more than five years ahead of forecast.
California needs more energy storage to match the duck curve Experiencing this net load years ahead of the CAISO forecast has placed not the California grid in crisis. The state's grid has sufficient flexibility today to accommodate the rapid rise of solar power,
which is the primary driver of change in CAISO grid operations. However, with the January 2015 milestone landing well beyond the 2020 forecast,
Long-duration energy storage offers both the benefits of grid flexibility similar to flexible gas plants, and the reuse of zero-marginal-cost midday solar during the evening energy ramp.
2015news and information Nanometric sensor designed to detect herbicides can help diagnose multiple sclerosis June 23rd, 2015sweeping lasers snap together nanoscale geometric grids:
New technique creates multilayered, self-assembled grids with fully customizable shapes and compositions June 23rd,
2015discoveries Nanometric sensor designed to detect herbicides can help diagnose multiple sclerosis June 23rd, 2015sweeping lasers snap together nanoscale geometric grids:
New technique creates multilayered, self-assembled grids with fully customizable shapes and compositions June 23rd,
2015announcements Nanometric sensor designed to detect herbicides can help diagnose multiple sclerosis June 23rd, 2015sweeping lasers snap together nanoscale geometric grids:
New technique creates multilayered, self-assembled grids with fully customizable shapes and compositions June 23rd,
In graphene, infrared light launches ripples through the electrons at the surface of this metallike material called surface plasmon polaritons that the researchers were able to control using a simple electrical circuit.
It fits the definition of a metamaterial, a class of structures first realized at UC San diego 15 years ago that is beginning to be expoited for potential practical use."
which endow them with several advantages compared to traditional metal-based metamaterials. The key advantages include enormous degree of tunability, relatively low losses,
"We have demonstrated now an entirely new class of electromagnetic metamaterials that are fabricated from separate atomic planes of Van der waals materials,
"Electromagnetic metamaterials are revolutionizing imaging and sensor technologies. Since the initial demonstration these systems have advanced already to practical applications."#
2015imaging Robust new process forms 3-D shapes from flat sheets of graphene June 23rd, 2015sweeping lasers snap together nanoscale geometric grids:
New technique creates multilayered, self-assembled grids with fully customizable shapes and compositions June 23rd,
2015robust new process forms 3-D shapes from flat sheets of graphene June 23rd, 2015sweeping lasers snap together nanoscale geometric grids:
New technique creates multilayered, self-assembled grids with fully customizable shapes and compositions June 23rd,
nanoscale geometric grids: New technique creates multilayered, self-assembled grids with fully customizable shapes and compositions June 23rd,
2015newly-Developed Biosensor in Iran Detects Cocaine addiction June 23rd, 2015iranian Scientists Design Nano Device to Detect Cyanogen Toxic Gas June 23rd, 2015materials/Metamaterials n-tech Research Issues Report on Smart Coatings Market
, Free Download Available on Firms Website June 24th, 2015uk Graphene Open for Business with Asia June 23rd,
their designs are intended to be powered grid. When operating off the grid, these systems are not cost-effective,
essentially blocking disconnected, rural villages from using them. Wrights solution offers an alternative to grid power:
Shes designed a village-scale desalination system that runs on solar power. Since her system is powered by the sun,
and transporting it in our gas grids in the form of methane Thomas Kolb Head of the Engler-Bunte Institute of KIT emphasizes.
So far admixture of hydrogen in the natural gas grid has been limited to a few percent as storage distribution
Via an effective methanation wind and solar power can be fed into the natural gas grid without any limitations.
000 kilowatt hours per person every year--that's about how much electricity an average U s. home consumes in one month h
like grid power in India and Bangladesh, is by its nature intermittent, and refrigerators need constant power.
Eventually they settled on a thermal energy storage system that uses a phase-change material to store energy in the form of ice.
When the grid is operating a portion of the material freezes, and the battery circulates that thermal energy into a heat exchanger to keep milk chilled over the course of the day.
< Back - Next >
Overtext Web Module V3.0 Alpha
Copyright Semantic-Knowledge, 1994-2011