Quality map calculated Measurements of the electrical conductivity showed that the newly developed composite electrode is comparable to a conventional silver grid electrode.
and predict the electrical conductivity of the electrodes from them.""We are investigating where a given continuous conductive path of nanowires is interrupted to see where the network is not yet optimum,
Other approaches involve using magnetic fields to control the plasma sheath or injecting water or other liquids into the plasma sheath to make it more permeable to radio signals,
whether it contained actual data or the aforementioned power traffic into direct current voltage, which was boosted then to a usable voltage with a DC-DC converter.
and Microwaves NIST scientists have developed a novel method to rapidly and accurately calibrate gas flow meters,
Guo and his team took ordinary dust from a vacuum cleaner and dumped it onto the treated surface.
as well as studying how to expand this technique to other materials such as semiconductors or dielectrics, opening up the possibility of water repellent electronics.
Sunlight to electricity Solar cells work by converting photons of sunlight into an electric current that moves between two electrodes.
The device is based on microfluidic technology developed by Joel Voldman an MIT professor of electrical engineering and computer science (EECS) in 2009.
Purdue University researchers had created previously uperlatticesfrom layers of the metal titanium nitride and the dielectric, or insulator, aluminum scandium nitride.
Their discovery that nanosheets of manganese dioxide can maintain a rechargable sulphur cathode helps to overcome a primary hurdle to building a Li-S battery.
sulphur can provide a competitive cathode material to lithium cobalt oxide in current lithium-ion cells.
Unfortunately, the sulphur cathode exhausts itself after only a few cycles because the sulphur dissolves into the electrolyte solution as it reduced by incoming electrons to form polysulphides.
The result is a high-performance cathode that can recharge more than 2000 cycles. Postdoctoral research associate Xiao Liang, the lead author,
BASF International Scientific Network for Electrochemistry and Batteries funded the research. The paper co-authors include Arnd Garsuch and Thomas Weiss of BASF n
The IMS researchers around electrical engineer Dr. Gerd vom Bögel and physicist Dr. Andreas Goehlich have mastered just these two challenges:
The design consists of an ultra-thin metal anode made of thin lithium on copper
Solid Polymer Ionic Liquid (SPIL) electrolyte enables the ultra-thin lithium metal anode and improves the cell-level energy density by 50%compared to graphite anodes
and 30%compared to silicon-composite anodes. Batteries are safe nonflammable and nonvolatile and can operate at elevated temperatures.
It can be manufactured using existing Li-ion manufacturing facility leveraging mature infrastructure. The company says its prototype can be recharged 300 times while retaining 80%of its original storage capacityloser to
said Noel C. Giebink, assistant professor of electrical engineering, Penn State. urrent CPV systems are the size of billboards
or back into using microwaves. The state has brighter fluorescence than the state, allowing scientists to measure the state in an optical microscope.
The devicesperformance was characterized in part using optical microscopy in a magnetic field at the CFN, performed by CFN staff scientist Mircea Cotlet, Luozhou Li,
and Edward Chen, who is also a graduate student studying under the guidance of Englund at MIT. oupling the NV centers with these optical resonator cavities seemed to preserve the NV spin coherence timehe duration of the memory,
multi-rotor UAV (Unmanned aerial vehicle) that uses its own structural elements to store fuel. e realized that the structures of these drones were hollow inside,
The lightweight lithium-polymer hybrid fuel cell that converts the hydrogen gas into electricity to power the rotors was developed by a sister company,
me great pleasure to be part of the solution for improving paralyzed patientslives. part of the brain that controls intuitive movement planning could be key to improving motor control in paralyzed patients with prostheticsneural prosthetic devices
a liquid cathode and a solid lithium anode, exhibited encouraging early results, encompassing many of the features desired in a state-of-the-art energy storage device.
Before the new battery hits the shelves, researchers still have a lot of work ahead of them considering the lithium anode
such as zinc and magnesium that could serve as the anode in a battery of this type. e also expect that other organometallic compounds with multi-valence-state metal centers (redox centers) may also function as the anode,
Professor Pieter Abbeel of UC Berkeley Department of Electrical engineering and Computer sciences said it is a new way to empower robot
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,
The new technique consists of coating magnesium resistors (or silicon diodes), printed on very thin and flexible materials,
#Researchers Discover Electron Pairing without Superconductivity A team of physicists from the University of Pittsburgh, the University of Wisconsin-Madison,
Superconductors are used for many applications including in magnetic resonance imaging devices and for magnetic energy storage. The basis for all superconductors is the formation of electron pairs.
In the normal non-superconducting phase, the electrons in most metals move independentlyhe scattering of electrons causes electrical resistance.
In a superconductor, the paired electrons move in a highly coordinated fashion that has zero electrical resistance.
When the researchers applied a magnetic field, they observed breaking of the electron pairs one at a time. A theory of electron pairing without formation of a superconducting state was published first by David M. Eagles in 1969.
The discovery provides clues about the mechanisms causing superconductivity in strontium titanate, which may eventually help researchers to the discovery of a material that superconducts at room temperature.
These images show differential conductance through the quantum dot as a function of the gate voltage that controls the number of electrons in the dot (x-axis) and the applied magnetic field (y-axis).
These new phenomena rely on the transport of thermal energy, in contrast to the conventional application of magnetic fields, providing a new,
and enables the manipulation of nanomagnets with spin currents rather than magnetic fields, explained Gyung-Min Choi,
and putting it all in a blender and ending up with goldxcept that the amines we can make with this new method are often worth much more than their weight in gold mines are very useful for making drugs.
Its motions are controlled by external magnetic fields. he entire walking motion is embedded into the mechanics of the robot body
says Cynthia R. Sung, an MIT graduate student in electrical engineering and computer science and one of the robot co-developers. n previous origami robots,
and motors to actuate the body itself. oining Sung on the paper describing the robot are her advisor, Daniela Rus, the Andrew and Erna Viterbi Professor in MIT Department of Electrical engineering and Computer science;
the proper application of a magnetic field to the permanent magnet on its back causes its body to flex.
Then, another sequence of magnetic fields causes the robot body to twist slightly which breaks the front feet adhesion,
Outside controlin their experiments, the researchers positioned the robot on a rectangular stage with an electromagnet at each of its four corners.
If you wrapped one up into a sphere, its magnetic fields would point away in all different directionso they stay in neat little packages
Scientists found they could prod these skyrmions to move using electric currents, and an idea was born:
are tiny devices that stop the flow of electric current (off and on, 1 and 0). But there a limit to how small we can make them,
When the scientists applied an electric current to the metal layers, the stripes stretched through the channel
By running a smaller electric current through the system they could make the skyrmions move: hese aren exotic materialsheye widely used already in the magnetics industry,
The electric current needed to move the skyrmions is much lower than what used in other experimental memory alternatives, like racetrack memory,
It is made of simple ordinary office paper on one side there is inexpensive air-breathing cathode created with nickel sprayed on
on another side the anode is screen printed with carbon paints, creating a hydrophilic zone with wax boundaries.
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.
ith adducted rotors you immediately not only protect people and property if you were to bump into them,
NA Electrochemistry shows DNMT1 Methyltransferase Hyperactivity in Colorectal Tumors, was supported by the National institutes of health a
#Risk of bowel cancer reduced by taking aspirin for Lynch syndrome patients An international study led by The University of Melbourne has confirmed that long-term regular taking of aspirin
#Electrical engineers Break Power and Distance Barriers for Fiber optic communication Electrical engineers have broken key barriers that limit the distance information can travel in fiber optic cables
The electrical engineers used their frequency comb to synchronize the frequency variations of the different streams of optical information
said UC San diego electrical engineering Ph d. student Eduardo Temprana, the first author on the paper. The frequency comb ensured that the system did not accumulate the random distortions that make it impossible to reassemble the original content at the receiver.
the characteristic that controls how polarized atoms interact with external electric fields. The researchers who published their results this month in the American Chemical Society Journal of Physical chemistry Letters discovered they could calculate the flexoelectric effect of graphene rolled into a cone of any size and length.
advances the understanding and use of complex oxide materials that boast unusual properties such as superconductivity and colossal magnetoresistance but are notoriously difficult to control.
the friction between those two surfaces ultimately produces an electrical charge-a type of contact electrification known as the triboelectric effect.
and Mohammad Noshad, now a postdoctoral fellow in the Electrical engineering Department at Harvard university, have devised a way of using light waves from light-emitting diode fixtures to carry signals to wireless devices at 300 megabits per second from each light.
when he joined the electrical engineering department to pursue his Ph d. He received several prizes for his work
Jie Lian, another one of Brandt-Pearce graduate students who has finished his master degree in electrical engineering
Radio waves creeping over your head Kaj Bjarne Jakobsen is an associate professor at DTU Electrical engineering. He has acted as supervisor for the group of Phd students who,
Dipole Coil Resonance System (DCRS) The research team used the Dipole Coil Resonance System (DCRS) to induce magnetic fields,
in order to generate rotating magnetic fields, which was embedded in the Tx flat platform. This has made it possible for mobile devices to receive power from any direction.
In addition, the DCRS works at a low magnetic field environment. Based on the magnetic flux shielding technology developed by the research team
was made in the lab of Federico Capasso, the Robert L. Wallace Professor of Applied Physics and Vinton Hayes Senior Research Fellow in Electrical engineering at the Harvard John A. Paulson School of engineering and Applied science (SEAS).
such strains are only found at low levels within the human gut, according to Timothy Lu, an associate professor of biological engineering and of electrical engineering and computer science,
In addition, this material stores heat energy by various approaches such as (b) electric current flow or (c) light-irradiation.
Besides direct application of heat, heat energy can be stored by passing an electric current through the material
This material also has possibilities for use for advanced electronic devices such as pressure-sensitive sheets, reusable heating pads, pressure-sensitive conductivity sensors, electric current driven type resistance random access memory (Reram
Batteries consist of one electrode on either side an anode and a cathode and an electrolyte between them.
but in lithium air batteries, the much lighter oxygen in a sense acts as the cathode, creating a more efficient design.
ESR works by combining a magnetic field with microwave energy, which together, get molecular bonds vibrating in telltale ways.
The resonant chamber focuses the microwaves on the sample, just like they would in a microwave oven,
introducing some of the same problems familiar to microwave chefs. SR is quick and convenient in some ways,
but you don have as much control over the spot youe exploring as you might like,
an electrical engineer whose work often concerns the semiconductor industry. ut wee also excited for the huge number of people who can now use this technique in chemistry and biology.
which ideally produce electric current by migrating in opposite directions following their separation by photon-carrying sunlight.
They generate no magnetic field, produce no magnons, and there appears to be no way for the spins to communicate with one another.
whose electrical conductivity increases 200-fold when stretched. The research team is using the new fibers to make artificial muscles,
and the thin rubber layer is a dielectric, resulting in a fiber capacitor. These fiber capacitors exhibited a capacitance change of 860 percent
Alternatively, Edgerton speculates it may be possible early after an injury for noninvasive stimulation to help patients achieve a certain level of motor control that then allows them to continue to improve with physical rehabilitation
it captures the light and converts it to an electric current. A connection to the gadget battery would enable the layer to send power directly to it.
#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.
Toaster-sized microsatellites can be launched dozens at a time and don have to operate at very high orbits, reducing launch costs,
this technique could be important in the development of devices that are highly sensitive to magnetic fields,
Furthermore, the magnetisation could only be determined indirectly through the resulting distribution of the magnetic field. ur process enables you to map the magnetisation in directly in 3d.
Knowledge of the magnetisation is prerequisite for improving the sensitivity of magnetic field detectors, said Kronast.
such as those developing more sensitive devices for medical imaging as procedures-including magnetoencephalography-depend on externally detecting very weak magnetic fields created by the electrical activity of individual nerve cells. l
The Powervault unit is about the size of a washing machine and weighs about 150kg (330lbs).
Powervault energy storage system is just a little smaller than the average UK washing machine. ypically the system works on a daily cycle
The unit stores 2 to 4 kilowatt hours, enough energy to watch television for 14 or 28 hours or wash two to four full loads in the washing machine.
the researchers explained that it uses about one-billionth the electric current needed to power a hair-dryer."
"said Stanford electrical engineer Philip Wong.""Graphene has been promised to benefit the electronics industry for a long time, and using it as a copper barrier is perhaps the first realization of this promise."
Engineers Unveil Method to Dispel Noise Effects The fiber optic data transmission will soon be enhanced significantly as electrical engineers at the UC San diego Qualcomm Institute have divulged a method to increase the capacity limit of high-bandwidth fiber optic cables.
The potential applications for anti-icing surfaces involve protection of aerofoils, protection of aerofoils, pipes of air conditioners and refrigerators, radar or telecommunication antennas,
he device uses about one-billionth of the power needed to run a hair dryer and represents a major step in efforts to build quantum computing systems.
which emitted photons in the microwave region of the light spectrum. The photons bounced off mirrors on either side of the cavity,
creating a beam of microwave light. e designed dots to emit photons when single electrons jump from a higher to a lower energy level across the double dot.
#Mirror Created By Stanford Scientists Could Replace Air conditioning Researchers in Stanford have created a mirror, that not only reflects 97%of light,
You can significantly offset the electricity used for air conditioning, said Shanhui Fan, an expert in photonics at Stanford university who led the development of the mirror. n some situations the computations say you can completely offset the air conditioning.
Various things heat up the building temperatures. Warm air comes through the windows and doors. Visible light and infrared lights pass heat through the building surfaces.
However, on application of electric field, things take an interesting turn. When the gold plating over the miniature robots interacts with an alternating electrical field passing through them,
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