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| Electrical engineering (105) | |
| Electrical machine (24) | |
| Home appliances (41) | |
The algorithms are used then with advanced signal processing techniques to reduce the amount of data that has to be sent for a given monitoring application.
Commercial fridges and freezers keep food fresh and beverages cool. They are vital to modern commerce but troublesome for the environment.
freezers and chilled vending machines filled with goods to sell. They are convenient and essential for preserving
Combined, commercial refrigerator/freezers like these are estimated to consume 85 TWH (terawatt hours) of electricity every year.
The project trademarked V-Tex technology recorded energy savings of 80-90%compared with open-front commercial refrigerators.
says Ada Poon, assistant professor of electrical engineering at Stanford university. The central discovery is an engineering breakthrough that creates a new type of wireless power transfersing roughly the same power as a cell phonehat can safely penetrate deep inside the body.
when we broadcast signals from giant radio towers, cook in microwave ovens, or use an electric toothbrush that recharges wirelessly in a special cradle next to the bathroom sink.
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.
There are several ways to create a magnetic field which is crucial to keeping a fusion reactor going.
The new design is known as a spheromak meaning it generates the majority of magnetic fields by driving electrical currents into the plasma itself.
because they rely on superconducting coils that circle around the outside of the device to provide a similar magnetic field.
which could provide another source of energy for certain applicationssays Shwetak Patel associate professor of computer science and engineering and of electrical engineering at the University of Washington.
That means any slight shift in an office building s air conditioning or the natural outside air temperature during the course of a day would be more than enough to activate the chemical in the bellows.
and doctoral student in electrical engineering. e provide a simple design that includes some 3d printed and off-the-shelf components.
The battery sends an electric current through two electrodes that split liquid water into hydrogen and oxygen gas.
Crop growers wine grape and other fruit growers food processors and even concrete makers all benefit from water sensors for accurate steady and numerous moisture readings.
The achievement is reported in an article on the cover of the journal Nature. eople have been talking about a new era of carbon nanotube electronics moving beyond siliconsays Subhasish Mitra an electrical engineer
Professor Giovanni De Micheli director of the Institute of Electrical engineering at Ã#cole Polytechnique FÃ dã rale de Lausanne in Switzerland highlighted two key contributions the Stanford
But smaller faster and cheaper has meant also smaller faster and hotter. nergy dissipation of silicon-based systems has been a major concernsays Anantha Chandrakasan head of electrical engineering and computer science at MIT and a world
as well as humidity and electrical conductivity probes that are buried beneath the soil. Using their smartphone, a farmer can access their network of FLOW-AIDS over the internet,
The microwave transmission that would deliver SBSP s electricity from an orbiting antenna to terrestrial rectennas would be##2 million times the power of that produced by the microwave oven.##
and a former associate professor of electrical engineering and computer science who co-invented the technology. That turns out to be the key to keeping the efficiency very high.
Backed by millions in funding Eta Devices co-founded by David Perreault an MIT professor of electrical engineering
when Downey, who studied electrical engineering and computer science, organized an MIT student team including Airware chief technology officer, Buddy Michini 7, SM 9,
Exoelectrogens, coated on anodes, consume the wastewater remaining organic pollutants and, in the process, generate electricity.
This electricity travels through a circuit and onto cathodes coated with separate microbes that consume that electricity
an MIT graduate student in electrical engineering and computer science and first author on the new paper. e need to regulate the input to extract the maximum power,
the Joseph F. and Nancy P. Keithley Professor in Electrical engineering, use an inductor, which is a wire wound into a coil.
When a current passes through an inductor, it generates a magnetic field which in turn resists any change in the current.
Batteries have called two electrodes an anode and a cathode. The anodes in most of today's lithium-ion batteries are made of graphite.
The theoretical maximum storage capacity of graphite is limited very at 372 milliamp hours per gram hindering significant advances in battery technology said Vilas Pol an associate professor of chemical engineering at Purdue University.
The researchers have performed experiments with a porous interconnected tin-oxide based anode which has nearly twice the theoretical charging capacity of graphite.
The researchers demonstrated that the experimental anode can be charged in 30 minutes and still have a capacity of 430 milliamp hours per gram (mah g 1)
The anode consists of an ordered network of interconnected tin oxide nanoparticles that would be practical for commercial manufacture
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 low frequencies fall between microwaves and infrared waves. The light in these terahertz wavelengths can pass through materials that we normally think of as opaque such as skin plastics clothing and cardboard.
The key according to UCSB professor of electrical and computer engineering Kaustav Banerjee who led this research is Mos2's band gap the characteristic of a material that determines its electrical conductivity.
Graphene has been used among other things to design FETSEVICES that regulate the flow of electrons through a channel via a vertical electric field directed into the channel by a terminal called a gate.
While one-dimensional materials such as carbon nanotubes and nanowires also allow excellent electrostatics and at the same time possess band gap they are not suitable for low-cost mass production due to their process complexities she said.
or small proteins still maintaining good electrostatics which can lead to high sensitivity even for detection of single quanta of these biomolecular species she added.
great electrostatics due to their ultra-thin body scalability (due to large band gap) as well as patternability due to their planar nature that is essential for high-volume manufacturing said Banerjee.
Satellite Signals A wireless device developed by researchers at Duke university that converts microwaves into electricity could eventually harvest Wi-fi or satellite signals for power according to its creators.
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.
The battery-powered drone has a 10-foot (3-meter) wingspan, 10 electric motors (eight on the wings,
an associate professor of electrical engineering and computer science and biological engineering. hese bacteriophages are designed in a way that relatively modular.
which produces an electric current when exposed to light. This mechanism enables each pixel to measure the intensity of light falling on it.
Stepping stones to a Unique Statea material band gap is fundamental to determining its electrical conductivity. Imagine two river crossings, one with tightly-packed stepping-stones,
and very soon it could potentially be applied to several sectors including engineering where electrical engineers can adjust the band gap
ays study co-author Kaustav Banerjee, an electrical engineer at UCSB. The new TFET is made from two atomically-thin layers of semiconducting molybdenum sulfide crystal on top of a substrate of germanium.
a team led by electrical engineers Steven Cummer and Yangbo Xie, 3d printing offers a fantastic solution. What they have essentially come up with is a large thick,
and now using refrigerators. The next step to prolonging shelf life, is breaking down the food further.
Magnetic field generation with coils located outside the body supply the electrical current wirelessly to the coil located within the TE,
or even in sensors that measure magnetic fields. We could even see it used in future computer technology o
Stepping stones to a Unique Statea material band gap is fundamental to determining its electrical conductivity. Imagine two river crossings, one with tightly-packed stepping-stones,
and very soon it could potentially be applied to several sectors including engineering where electrical engineers can adjust the band gap
"We then add a magnetic field to arrange the nanoparticle chains and provide directionality, "said Bhuvnesh Bharti,
and an external magnetic field is applied to the particles.""In other words, this material is temperature responsive, and these soft and flexible structures can be pulled apart
2015two spin liquids square off in an iron-based superconductor: Changes in short-range, transient order in competing liquid-like phases precede onset of superconductivity August 5th,
2015yolks and shells improve rechargeable batteries: Aluminum could give a big boost to capacity and power of lithium-ion batteries August 5th, 2015arrowhead to Present at Jefferies 2015 Hepatitis b Summit August 5th, 2015robotics UT Dallas nanotechnology research
2015two spin liquids square off in an iron-based superconductor: Changes in short-range, transient order in competing liquid-like phases precede onset of superconductivity August 5th, 2015atomic view of microtubules:
Berkeley Lab researchers achieve record 3. 5 angstroms resolution and visualize action of a major microtubule-regulating protein August 4th,
2015two spin liquids square off in an iron-based superconductor: Changes in short-range, transient order in competing liquid-like phases precede onset of superconductivity August 5th,
2015yolks and shells improve rechargeable batteries: Aluminum could give a big boost to capacity and power of lithium-ion batteries August 5th,
2015two spin liquids square off in an iron-based superconductor: Changes in short-range, transient order in competing liquid-like phases precede onset of superconductivity August 5th,
2015yolks and shells improve rechargeable batteries: Aluminum could give a big boost to capacity and power of lithium-ion batteries August 5th, 2015arrowhead to Present at Jefferies 2015 Hepatitis b Summit August 5th,
2015two spin liquids square off in an iron-based superconductor: Changes in short-range, transient order in competing liquid-like phases precede onset of superconductivity August 5th,
2015yolks and shells improve rechargeable batteries: Aluminum could give a big boost to capacity and power of lithium-ion batteries August 5th,
and convert the light into electric current using excited states in the material called"excitons.""Roughly speaking, an exciton is displaced a electron bound together with the hole it left behind.
Strong perturbationso far, electrical circuits based on spin waves have not been realised, since it turned out to be impossible to introduce a perturbation in the system large enough to create spin waves.
This influences the motion of the electron, resulting in an electric current that the researchers can measure.
2015team announces breakthrough observation of Mott transition in a superconductor September 12th, 2015nist physicists show'molecules'made of light may be possible September 10th, 2015ultrafast uncoupled magnetism in atoms:
2015spintronics just got faster July 20th, 2015fundamental observation of spin-controlled electrical conduction in metals: Ultrafast terahertz spectroscopy yields direct insight into the building block of modern magnetic memories July 6th, 2015chip Technology Building the electron superhighway:
2015team announces breakthrough observation of Mott transition in a superconductor September 12th, 2015nist physicists show'molecules'made of light may be possible September 10th,
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.
and resonators (like the body of a guitar) amplify sound. They reported their findings in the May 8, 2015,
Graphene-based quantum electronic resonators and lenses have as yet untold potential but if conventional optics is any guide,
Stepping stones to a Unique State A material's band gap is fundamental to determining its electrical conductivity.
and very soon it could potentially be applied to several sectors including engineering where electrical engineers can adjust the band gap
in the journal Nature Nanotechnology("Dielectric metasurfaces for complete control of phase and polarization with subwavelength spatial resolution and high transmission"),could lead to ultracompact optical systems such as advanced microscopes, displays, sensors,
This electron wave creates a trailing wave-shaped electric field structure on which the electrons surf and by
Another possible application is in sensors that measure magnetic fields. The results have been published in Nature Communications c
It may also serve as an air conditioning, for example, in communities like Tecali de Herrera, Puebla,
Although superconductivity has already been observed in intercalated bulk graphite--three-dimensional crystals layered with alkali metal atoms,
based on the graphite used in pencils--inducing superconductivity in single-layer graphene has eluded until now scientists.""Decorating monolayer graphene with a layer of lithium atoms enhances the graphene's electron-phonon coupling to the point where superconductivity can be induced,
"says Andrea Damascelli, director of UBC's Quantum Matter Institute and lead scientist of the Proceedings of the National Academy of Sciences study outlining the discovery.
"Decorating monolayer graphene with a layer of lithium atoms enhances the graphene's electron-phonon coupling to the point where superconductivity can be stabilized."
"Given the massive scientific and technological interest, the ability to induce superconductivity in single-layer graphene promises to have significant cross-disciplinary impacts.
Although superconductivity has already been observed in intercalated bulk graphite--three-dimensional crystals layered with alkali metal atoms,
based on the graphite used in pencils--inducing superconductivity in single-layer graphene has eluded until now scientists.""Decorating monolayer graphene with a layer of lithium atoms enhances the graphene's electron-phonon coupling to the point where superconductivity can be induced,
"says Andrea Damascelli, director of UBC's Quantum Matter Institute and lead scientist of the Proceedings of the National Academy of Sciences study outlining the discovery.
"Decorating monolayer graphene with a layer of lithium atoms enhances the graphene's electron-phonon coupling to the point where superconductivity can be stabilized."
"Given the massive scientific and technological interest, the ability to induce superconductivity in single-layer graphene promises to have significant cross-disciplinary impacts.
Besides its potential use in information transfer, the metamaterial might also prove useful in data storage or for sensors that measure magnetic fields.
says Timothy Lu, an associate professor of electrical engineering and computer science and biological engineering. Arrayarray"We'd like to be able to remove specific members of the bacterial population
explains senior author Steven Cummer, an electrical engineer at Duke university in Durham, North carolina. Water-bottle melodies The way the disk works is simple,
These patients are usually on mechanical ventilators and some, though not all, die shortly after their family chooses to remove life support.
which exert powerful magnetic fields to compress high-temperature plasmaoiling balls of charged particles that fuse to form helium, releasing large amounts of energy in the process.
such as the one at the International Thermonuclear Experimental reactor (ITER) project in southern France, use giant coils of electromagnets that consume much more energy than the machine actually produces.
The magnetic field that holds the ring together is generated by the plasma itself technique known as a field-reversed configuration.
The novelty of the ARC design is the nature of the electromagnets that confine the plasma.
the ARC reactor can achieve magnetic fields with much higher energyhus enabling a reactor design much smaller than other tokamak-based machines.
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,
if you raise the magnetic field to very high levels, he says, ut the electromagnets had to be coppero superconductor could tolerate that magnetic field.
Now the advent of advanced superconductor tapes could enable a compact reactor that produces fusion continuously.
Published in Fusion Engineering and Design, the ARC reactor paper stresses that, for the moment, it a conceptual design only.
which genersates its own magnetic field, one of the permanent magnets attracts it while the other repels it.
For example a Gan power adapter can be integrated into a laptop and other electronic devices eliminating the clunky brick that is commonly comes with a device's power cord.
and moving parts and electrical engineers to design control systems Linden said. Tests have shown that each of the eight fiber-optic cables can produce between 80 and 90 watts of energy meaning the whole system can deliver up to 700 watts of energy into the reaction chamber said Linden.
an MIT graduate student in electrical engineering and computer science and first author on the new paper. e need to regulate the input to extract the maximum power,
the Joseph F. and Nancy P. Keithley Professor in Electrical engineering, use an inductor, which is a wire wound into a coil.
When a current passes through an inductor, it generates a magnetic field, which in turn resists any change in the current.
Mass-Selected Photoelectron Circular Dichroism (MS-PECD) uses circularly polarised light produced by a laser to ionise the molecules using a couple of photons to knock an electron out of the chiral molecule to leave a positively charged ion behind.
#Argentine greenhouse robot brings automation to the masses BUENOS AIRES--The new Trakür agricultural robot does not have the brains, firepower or complexity of one of the Transformers,
The electrolyzer projects under construction in Germany typically consist of a few buildings each the size of a shipping container that consume excess renewable energy on sunny and windy days by turning it into an electric current that powers the water-splitting reaction.
and Ozcan, the UCLA team was made up of an interdisciplinary group of researchers from the fields of electrical engineering,
an MIT graduate student in electrical engineering and computer science and first author on the new paper. e need to regulate the input to extract the maximum power,
the Joseph F. and Nancy P. Keithley Professor in Electrical engineering, use an inductor, which is a wire wound into a coil.
When a current passes through an inductor, it generates a magnetic field, which in turn resists any change in the current.
-and Nanophotonics Laboratory at UCLA Electrical engineering and Bioengineering Departments, said. To scan the DNA researchers developed a computational interface
who is also Chancellor Professor of Electrical engineering and Bioengineering. his mobile platform can be used for point-of-care testing,
The UCLA team included researchers from electrical engineering, physics and astronomy, bioengineering, pathology and laboratory medicine,
thin wires functioned well as resistors; whereas flat plates made for useful capacitors. The basis of this led to the production of the sensor cap for milk cartons.
some held at room temperature and some in a refrigerator. It was found that the cartons kept at room temperature produced the electrical signal far earlier
The movements is transformed into electricity using an alternator that increases the frequency of the mast movement.
Thus the electric field created between the two electrodes causes the flow of these particles back and forth.
The majority of today's wireless devices use gallium arsenide-based microwave chips due to their superior high-frequency operation and power handling capabilities.
Typically for a microwave chip that size, there are only eight to 40 transistors. The rest of the area is wasted just,
"If you have a microwave and honey or molasses, you can pretty much make these particles at home,
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.
2015oxford Instruments Tritonxl Cryofree dilution refrigerator selected for the Oxford NQIT Quantum Technology Hub project June 30th,
In addition, Yu envisions simply letting the resonator emit that energy in the form of infrared light toward the sky,
and an interconnection material linking semiconductor devices to form the desired electrical circuits, "said Kim.""This renders high processing temperature undesirable,
which improves the electrical conductivity of the laminate. Image: Xianjun Huang, et al.//University of Manchester) The study demonstrates that printable graphene is now ready for commercial use in low-cost radio frequency applications,
who is the first author of the paper and a Phd candidate in the Microwave and Communcations Group in the School of Electrical and Electronic engineering.
"Re-grown hematite proved to be a better power generating anode, producing a record low turn-on voltage that enabled the researchers to be the first to use earth-abundant hematite
an MIT graduate student in electrical engineering and computer science and first author on the new paper. e need to regulate the input to extract the maximum power,
the Joseph F. and Nancy P. Keithley Professor in Electrical engineering, use an inductor, which is a wire wound into a coil.
When a current passes through an inductor, it generates a magnetic field which in turn resists any change in the current.
the friction between those two surfaces ultimately produces an electrical charge-a type of contact electrification known as the triboelectric effect.
Lithium-ion cells with cobalt cathodes hold twice the energy of a nickel-based battery and four times that of lead acid.
These types of batteries, in all of their different lithium-anode combinations, continue to be an essential part of modern consumer electronics
In addition, Yu envisions simply letting the resonator emit that energy in the form of infrared light toward the sky,
and an interconnection material linking semiconductor devices to form the desired electrical circuits, "said Kim.""This renders high processing temperature undesirable,
reportedly harvests the electromagnetic radiation transferring to and from mobile phones and converts it into direct current (DC) electrical energy,
and a microwave Carbon nanoparticles can be incredibly useful in the treatment of many types of disease,
using a process that involves plain old honey and a microwave. The resulting particles are less than 8 nanometres thick (a human hair is around 80,000-100,000 nanometres)
"If you have a microwave and honey or molasses, you can pretty much make these particles at home,
the microwave-produced nanoparticles are effective in delivering the drugs where they're needed, and vibrational spectroscopic techniques were used to monitor how the polymers gradually released their payload.
They have demonstrated the feasibility of making microwave biodegradable thin-film transistors from a transparent, flexible biodegradable substrate made from inexpensive wood, called cellulose nanofibrillated fiber (CNF).
the biodegradable transistor needed to be able to operate at microwave frequencies, which is the working range of most wireless devices.
which finally showed the biodegradable transistor has superior microwave-frequency operation capabilities comparable to existing semiconductor transistors."
In addition, Yu envisions simply letting the resonator emit that energy in the form of infrared light toward the sky,
Sunlight to electricity Solar cells work by converting photons of sunlight into an electric current that moves between two electrodes.
The majority of today wireless devices use gallium arsenide-based microwave chips due to their superior high-frequency operation and power handling capabilities.
Typically for a microwave chip that size, there are only eight to 40 transistors. The rest of the area is wasted just,
or molasses, put them into microwave oven and ook it for a few minutes, and you get something that looks like char,
despite being made from honey in the microwave, are very useful indeed. They can be used to carry a variety of different drugs into a human body.
the friction between those two surfaces ultimately produces an electrical charge-a type of contact electrification known as the triboelectric effect.
#A Better Way to Keep Milk Fresh Sometime this week a large milk refrigerator will arrive in Dhaka, the capital of bangladesh.
but this is a special kind of refrigerator. Made by Promethean Power systems, a company based in Pune, India,
Theye been selling refrigerators in India for two years; this week marks their first export to neighboring Bangladesh. ee been at this for eight years,
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.
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