#Perseids meteor shower will show hundreds of shooting stars across Europe Stargazers across Britain were treated to a stunning lightshow overnight as hundreds of shooting stars filled the sky as the annual Perseids meteor shower neared its peak.
'Mr Biedermann told Reuters. By combining these contactless sensors with unique algorithms and signal processing, the team produced a system
The massless photons are responsible for the forces of electromagnetism, while eight different kinds of gluons play a similar role for the strong nuclear force.
#MIT refreshes fusion reactor with modern superconductors Rare-earth barium copper oxide (REBCO) superconducting tapes could mean earlier practical fusion reactors, according to MIT.
It is half the diameter of the ITER fusion reactor to be built in France (designed before the REBCO superconductors),
"said Mihri Ozkan, an electrical engineering professor at UC Riverside's Bourns College of Engineering. Ozkan, along with her husband and fellow engineering professor, Cengiz Ozkan, current Ph d. student, Daisy Patino,
The electric field from the polarized strontium titanate was leaking into the topological insulator layer, changing its electronic properties.
#A resonator for electrons More than two thousand years ago the Greek inventor and philosopher Archimedes already came up with the idea of using a curved mirror to reflect light in such a way as to focus it into a point-legend has it that he used this technique to set
or parabolic mirrors are used in a host of technical applications ranging from satellite dishes to laser resonators,
Modern quantum physics also makes use of resonators with curved mirrors. In order to study single atoms
A team of physicists at ETH Zurich, working within the framework of the National Centre of Competence in Research Quantum Science and Technology (NCCR QSIT), have managed now to build a resonator that focuses electrons rather than light waves.
In the near future, such resonators could be used for constructing quantum computers and for investigating many-body effects in solids.
"Our results show that the electrons in the resonator do not just fly back and forth, but actually form a standing wave
and the electronic wave in the resonator happens through the spin.""In the future, this spin-coherent coupling could make it possible to connect quantum dots over large distances,
A long-distance coupling through an appropriately designed resonator could elegantly solve this problem. Basic science could also benefit from the electron resonators realized by the ETH researchers, for instance in studies of the Kondo effect.
This effect occurs when many electrons together interact with the magnetic moment of an impurity in a material.
With the help of a resonator and a quantum dot simulating such an impurity, the physicists hope to be able to study the Kondo effect very precisely.
Its flexibility, optical transparency and electrical conductivity make it suitable for a wide range of applications, including printed electronics.
"said Sumeet Gupta, Monkowski Assistant professor of Electrical engineering and group leader of the Integrated circuits and Devices Lab, Penn State.
The electric field from the polarized strontium titanate was leaking into the topological insulator layer, changing its electronic properties.
University of Wisconsin-Madison electrical engineers have created the fastest, most responsive flexible silicon phototransistor ever made.
CEI is currently using its advanced transistors to develop laptop power adaptors that are approximately 1. 5 cubic inches in volume the smallest ever made.
one negatively charged anode made of aluminum and a positively charged cathode. Professor Dai said that his team accidentally discovered that a simple solution is using graphite.
This is why the Stanford researchers placed the aluminum anode, a graphite cathode and an ionic liquid electrolyte inside of a polymer-coated pouch.
the research team will have to improve the cathode material to increase the voltage and energy density.
and economic benefits, says Massoud Amin, chairman of the IEEE Smart Grid and a professor of electrical engineering at the University of Minnesota.
According to principal investigator Federico Capasso, the Robert L. Wallace Professor of Applied Physics and Vinton Hayes Senior Research Fellow in Electrical engineering at Harvard SEAS, omplicated effects like color correction,
The plate is coupled to a superconducting electrical circuit as the plate vibrates at a rate of 3. 5 million times per second.
The plate is coupled to a superconducting electrical circuit as the plate vibrates at a rate of 3. 5 million times per second.
Cuprates are the only family of materials known to exhibit superconductivity at high temperaturesxceeding 100 Kelvin (73 degrees Celsius.
A high enough level of doping will transform cuprates into high-temperature superconductors, and as cuprates evolve from being insulators to superconductors, they first transition through a mysterious phase known as the pseudogap,
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
and its relationship to superconductivityhether it is a necessary precursor to superconductivity or a competing phase with a distinct set of symmetry properties.
and pseudogap phenomena. here is also very recent work by other groups showing signatures of superconductivity in Sr2iro4 of the same variety as that found in cuprates,
perhaps iridates will help us resolve some of the longstanding debates about the relationship between the pseudogap and high-temperature superconductivity.
especially in developing countries with limited resources,"says Waseem Asghar, Ph d.,assistant professor of electrical engineering in the College of Engineering and Computer science at FAU,
The prototype battery features an anode made of aluminum, a cathode of graphite and an ionic liquid electrolyte,
"Improving the cathode material could eventually increase the voltage and energy density,"says Dai.""Otherwise, our battery has everything else you'd dream that a battery should have:
The main innovation behind this new approach lies in the superior signal processing that drives every Leddar sensor.
In the ICFO device, the continued excitation of electrons above this band-gap level results in the much faster and easier movement of them when subjected to incoming photons to create an electric current.
Flanked by connecting electrodes (an anode on one side and a cathode on the other),
the most common function of such a diode is to permit electric current to flow in one direction only,
for example, be used to rectify alternating current to direct current, and so these types of diodes are known as rectifiers.
and Tsinghua University in China have found a way to more than triple the capacity of the anodes,
and uses inverters to turn direct current into grid-ready alternating current, presents them with a serious set of challenges.
Neumann measured the speed of titanium ions released by a pulsed electric arc similar to an arc welder. he titanium was coming out at 20 kilometers per second 12.4 miles per second and
Neumann says experiments with pulsed electric arcs on metals go back to the 1920s, and some of the data collected was useful to him in assessing
levitating as it goes. he magnetic field from the track is effectively rozeninto the superconductors in the board,
Students can use the marker as an educational tool to easily experiment on electric currents and,
Fourier transform infrared spectroscopy, x-ray photoelectron spectroscopy, Raman and AFM imaging to determine the CDSVARIOUS optical and material properties. ynthesizing
Other systems have been developed to control boiling using electric fields, but these have required special fluids rather than water,
The human brain is the most powerful computer known, an extraordinary assembly of living electrical circuits. To gain greater understanding of how the human brain works
"said study senior author Ada Poon, an electrical engineer at Stanford university in California. However, previous wireless brain-stimulating devices were limited by their power harvesting components.
and a doctoral candidate in electrical engineering at Stanford university in California. Reducing the distance between the two elements can dramatically reduce the time computers take to do their work
a physicist and electrical engineer at Nanyang Technological University in Singapore, told Live Science.""Therefore, a controllable cloak that can adjust its performance is very desirable."
known as a suspended microchannel resonator (SMR), measures particlesmasses as they flow through a narrow channel.
and to measure how each particle affects the vibration frequency of each mode at each point along the resonator.
This has an internal oscillator that adjusts its own frequency to correspond to the frequency of a resonator mode,
which makes use of several vibration modes to image an object as it sits on a nanomechanical resonator.
where objects must be attached to the resonator. The ability to achieve this dynamically in flow opens up exciting possibilities,
or anode, are reported in the journal Nature Communications, in a paper by MIT professor Ju Li and six others.
The use of nanoparticles with an aluminum yolk and a titanium dioxide shell has proven to be he high-rate champion among high-capacity anodes
Most present lithium-ion batteries the most widely used form of rechargeable batteries use anodes made of graphite, a form of carbon.
because it not good for electrical conductivity, Li says. They ended up converting the alumina layer to titania (Tio2),
he says, t probably the best anode material available. Full cell tests using lithium iron phosphate as cathode have been successful,
indicating ATO is quite close to being ready for real applications. hese yolk-shell particles show very impressive performance in lab-scale testing,
The Van der waals force is the attractive sum of short-range electric dipole interactions between uncharged molecules. Thanks to strong Van der waals interactions between graphene and boron nitride, CVD graphene can be separated from the copper
Stepping stones to a Unique State A material 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
Surface plasmons are electromagnetic waves propagating along a metal-dielectric interface (e g.,, gold/air) and having the amplitudes exponentially decaying in the neighbor media.
where an electric field is used to induce magnetism; however, this mechanism is limited often to the top monolayer of atoms of the crystal lattice only.
which low-frequency electromagnets are used, but in this case can reach far higher energy efficiency. Research of the KIT scientists mainly aims at small magnetic actuators for use in (micro) robots or microfluidics o
University of Wisconsin-Madison electrical engineers have created the fastest, most responsive flexible silicon phototransistor ever made.
University of Wisconsin-Madison electrical engineers have created the fastest, most responsive flexible silicon phototransistor ever made.
Developed by UW-Madison electrical engineers, this unique phototransistor is flexible, yet faster and more responsive than any similar phototransistor in the world.
increasing the velocity of particle transport by 100 times by applying an alternating current electric field in conjunction with heating the plasmonic nanoantenna using a laser to induce a force far stronger than otherwise possible."
and an electric field, inducing an"electrothermoplasmonic flow.""""Then, once we turn off the electric field the laser holds the particles in place,
so it can operate in two modes. First, the fast transport using alternating current, and then you turn off the electric field
and it goes into the plasmonic tweezing mode, "he said. The Purdue researchers are the first to induce electrothermoplasmonic flow using plasmonic structures.
Key to this technology is the memristor (a combination of"memory"and"resistor"),an electronic component
"More than 80%of the incident visible sunlight was converted photoelectrically by this composite system into electric current available for the hydrogen generation,
and the atomic structure in the nanotubes halts electric currents. This disparity creates a barrier, caused by the difference in electron movement as currents move next to and past the hairlike boron nitride nanotubes.
These negatively charged ions produce an electric field that effectively serves as a diode to hinder error-causing crosstalk.
Many important but complex processes in the natural and life sciences, for example, photosynthesis or high-temperature superconductivity, have yet to be understood.
pressure or electric field pulses is as follows: while a first pulse excites the sample under study, a second pulse monitors the change in the sample.
The sample can be stimulated with laser, pressure, electric field or magnetic field pulses. The principle was tested at the HZDR on a typical laboratory laser as well as on the free-electron laser FELBE.
while still allowing the ions to flow seamlessly to complete the electrical circuit in the cell.
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.
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.
making many materials that have good electrical conductivity, flexibility and transparency-all three are needed for foldable electronics-wear out too quickly to be said practical
Zhifeng Ren, a physicist at the University of Houston and principal investigator at the Texas Center for Superconductivity,
The work by Shanhui Fan, a professor of electrical engineering at Stanford, research associate Aaswath P. Raman and doctoral candidate Linxiao Zhu is described in the current issue of Proceedings of the National Academy
#Carbon nanotubes Applied to Create Electrical conductivity in Woolen Fabrics The fabrics can be used in various industries,
The production of fabrics with new properties such as electrical conductivity is among the changes. Researchers have tried in this research to synthesize fabrics with new properties by using simple and modified carbon nanotubes.
called the cathode and anode. As the battery produces electrical current, electrons flow from the anode through a circuit outside the battery and back into the cathode.
Having lost the electrons that are generating the current, some of the atoms in the anode--an electrically conductive metal like lithium--become ions that then travel to the cathode,
moving through a conductive liquid medium called an electrolyte. Recharging the battery reverses the process,
and stick onto the anode. But when they do, the ions don't attach evenly. Instead, they form microscopic bumps that eventually grow into long branches after multiple recharging cycles.
and contact the cathode, they form a short circuit. Electrical current now flows across the dendrites instead of the external circuit,
they can break off from the anode entirely and float around in the electrolyte. In this way, the anode loses material,
and the battery can't store as much energy.""Dendrites are hazardous and reduce the capacity of rechargeable batteries,
#Superconductivity trained to promote magnetization: Russian scientist and her colleagues discovered the superconductivity effect, which will help to create future supercomputers Superconductivity,
which is almost incompatible with magneticfield, under certain conditions is able to promote magnetization. Russian scientist Natalya Pugach from the Skobeltsyn Institute of Nuclear physics at the Lomonosov Moscow State university discovered this yet to be explained effect with her British colleagues,
whose theory group headed by Professor Matthias Eschrig. They suggest that techniques based on this effect are able to move us closer to future supercomputers:
which included Natalya Pugach from the Skobeltsyn Institute of Nuclear physics, studied the interactions between superconductivity
The results of this new research show, that superconductors may be useful in the process of spin transportation, and ferromagnetics may be used to control spins.
but and superconductors expel the magnetic field completely. It is almost impossible to make ordinary superconductors
and magnetic materials interact with each other due to their opposite magnetic ordering direction of magnetization: in magnetic layers storages the magnetic field tends to arrange spins in one direction,
and the Cooper pair (BCS pair) in ordinary superconductors haves opposite spins.""My colleagues experimented with devices called superconducting spin-valves.
"made of nanolayers of ferromagnetic material, superconductor and other metals. By changing the direction of magnetization it is possible to control the current in superconductor.
The thickness of layers is crucial, because in case of the"thick"superconductor it is impossible to see any interesting effects,
"--Natalya Pugach explains. During the experiments scientists bombarded the experimental samples with muons (particles that resemble electrons,
the interaction between these layers and superconductive layer produced induced magnetization in the gold layer,"overjumping"the superconductor.
or other bulk carbon anodes in a battery,"said Xiulei (David) Ji, the lead author of the study and an assistant professor of chemistry in the College of Science at Oregon State university."
because they open some new alternatives to batteries that can work with well-established and inexpensive graphite as the anode,
Aside from its ability to work well with a carbon anode however, lithium is quite rare,
The new findings show that it can work effectively with graphite or soft carbon in the anode of an electrochemical battery.
and be ready to take the advantage of the existing manufacturing processes of carbon anode materials."
The electric field from the polarized strontium titanate was leaking into the topological insulator layer, changing its electronic properties.
and high-stiffness materials can serve as high-quality optical films in multilayer photonic structures, waveguides, resonators,
and ultra-low-k dielectrics. Researchers from North carolina State university have developed a dielectric film that has optical and electrical properties similar to air
Dielectrics are insulator materials that are used in an enormous array of consumer products. For example, every handheld device has hundreds of capacitors,
The artificial atom is actually a superconducting electrical circuit that the researchers make behave as an atom.
#What are these nanostars in 2-D superconductor supposed to mean? Physicists from France and Russia have discovered magnetic disturbances in 2d superconductor layer,
resembling little oscillating stars. These starlike excitations are caused by a single magnetic atom put into the layer of superconducting material.
Physicists from France and Russia have discovered that the magnetic atoms in a two-dimensional layered superconductor create electronic disturbances that look like oscillating"nanostars".
and their colleagues from Paris-Saclay University studied the emergence of Yu-Shiba-Rusinov (YSR) states bound around single magnetic atoms embedded in a two-dimensional superconductor.
magnetic excitations extend over a greater distance as compared to ordinary three-dimensional superconductors, and the emergent YSR quantum states are more stable,
"We have demonstrated that the use of two-dimensional superconductors instead of the three dimensional ones results in an increase in the spatial extension of YSR states for several dozen nanometres,
i e. ten times further than in"normal"three-dimensional superconductors. And the area of excitation was shaped like a sixfold electronic"star"with its rays extending along the axis of the crystal lattice of niobium diselenide.
The main purpose of the Laboratory is to study the quantum properties of new superconductors and topologically protected materials,
They suggested that magnetic atoms introduced into a superconductor must create special states of excitation around themselves-electron-hole standing waves named after their discoverers.
The theory predicts that such non-Abelian anyons may occur in a two-dimensional"liquid"of electrons in a superconductor under the influence of a local magnetic field.
to being generated mostly by electric dipole transitions (the linear push and pull of electric forces). Those two emission pathways have distinct spectra,
Finding could have implications for high-temperature superconductivity A team of physicists led by Caltech's David Hsieh has discovered an unusual form of matter--not a conventional metal, insulator,
This phase, characterized by an unusual ordering of electrons, offers possibilities for new electronic device functionalities and could hold the solution to a longstanding mystery in condensed matter physics having to do with high-temperature superconductivity--the ability
Cuprates are the only family of materials known to exhibit superconductivity at high temperatures--exceeding 100 Kelvin(-173 degrees Celsius.
A high enough level of doping will transform cuprates into high-temperature superconductors, and as cuprates evolve from being insulators to superconductors, they first transition through a mysterious phase known as the pseudogap,
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
and its relationship to superconductivity--whether it is a necessary precursor to superconductivity or a competing phase with a distinct set of symmetry properties.
"There is also very recent work by other groups showing signatures of superconductivity in Sr2iro4 of the same variety as that found in cuprates,
"Given the highly similar phenomenology of the iridates and cuprates, perhaps iridates will help us resolve some of the longstanding debates about the relationship between the pseudogap and high-temperature superconductivity."
Now scientists report in the journal ACS Nano("Hierarchical Porous Nitrogen-Doped Carbon Nanosheets Derived from Silk for Ultrahigh-Capacity Battery Anodes and Supercapacitors")the development of a new,
or neutralizing cathodes, it has a higher thrust-to-mass ratio than low-power, plasma-based ion engines meaning it packs a Punch in January,
The Columbia team, led by Electrical engineering Associate professor Harish Krishnaswamy, is the first to demonstrate an IC that can accomplish this.
"We are working closely with Electrical engineering Associate professor Gil Zussman's group, who are network theory experts here at Columbia Engineering,
fundamental questions for the larger scientific community,"said Michel Maharbiz, an associate professor in UC Berkeley's Department of Electrical engineering and Computer sciences and the study's principal investigator."
The team successfully suspended glass particles 400 nanometres across in a vacuum using an electric field,
"Our solution was to combine the laser beam that cools the glass particle with an electric field
"The electric field also gently moves the glass particle around inside the laser beam, helping it lose temperature more effectively."
and signal processing applications and is well known to limit the capacity of optical fiber communications networks. While we want to avoid this disruption this effect has also some unique properties
"Lithium deposited on the platinum anode at the beginning (top), during (middle) and end (bottom) of the second cycle.
Residual dead lithium can be seen on and around the anode. With the new stage, scientists can directly image changes as they occur.
scientists can now chemically image the interface between the platinum anode and the electrolyte during the battery operation.
and protects the anode. The layer is formed as a result of the electrolyte breaking down. In their studies, the team found that extended battery cycling leads to lithium growing beneath the layer--the genesis of the dendrites that have implications for battery safety and performance.
a physical process that results in colors, says Dr. Junpeng Guo, professor of electrical engineering and optics,
and the Center for Mechatronics and Automation Technology (Zema) is using a new technology based on the shape memory properties of nickel-titanium alloy.
Additionally, the scientists also focus on developing other triggers for switching the adhesion like light, magnetic field, electric field or changes in temperature.
"said Koray Aydin, assistant professor of electrical engineering and computer science at Northwestern University's Mccormick School of engineering.""So the amount of material that is available for light emission or light absorption is limited very.
which have led to a decrease in both thermal and electrical conductivity. The new liquid-phase sintering creates grain boundaries
the Jamieson Career development Assistant professor in Electrical engineering and Computer science and one of the designers of the new device. e make use of almost all the pump light to measure almost all of the NVS.
a graduate student in electrical engineering who is advised by senior authors Englund and Danielle Braje, a physicist at MIT Lincoln Laboratory.
Lead researcher, UNSW Associate professor Andrea Morello from the School of Electrical engineering and Telecommunications, said his team had realised successfully a new control method for future quantum computers.
"This is an electron wave in a phosphorus atom, distorted by a local electric field. Unlike conventional computers that store data on transistors and hard drives, quantum computers encode data in the quantum states of microscopic objects called qubits.
can be controlled using electric fields, instead of using pulses of oscillating magnetic fields, "explained UNSW's Dr Arne Laucht,
using a very localized electric field.""This distortion at the atomic level has the effect of modifying the frequency at
"The findings suggest that it would be possible to locally control individual qubits with electric fields in a large-scale quantum computer using only inexpensive voltage generators, rather than the expensive high-frequency microwave sources.
which the built-in electric field creates a well which traps and protects charge carriers. This opens up the possibility of creating entirely new classes of organic electronic devices
since it allows for information carried by light to be converted into electrical information that can be processed in electrical circuits.
This photo-thermoelectric effect turns out to occur almost instantaneously, thus enabling the ultrafast conversion of absorbed light into electrical signals.
so that their ability to carry an electric current changes in the presence of a particular gas.
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,
and the atomic structure in the nanotubes halts electric currents. This disparity creates a barrier, caused by the difference in electron movement as currents move next to and past the hairlike boron nitride nanotubes.
and the contact points with metal connections on silicon are no longer smooth enough to be used efficiently in electrical circuits.
These negatively charged ions produce an electric field that effectively serves as a diode to hinder error-causing crosstalk.
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
on a substrate crystal of nonmagnetic strontium titanate using a method pulsed laser deposition developed many years ago for high-temperature superconductors and multicomponent materials by Prof Venkatesan,
This shift of electric charge occurs as the manganese atomic layers form atomically charged capacitors leading to the build up of an electric field, known as polar catastrophe
The team plans to use local electric fields to controllably turn on/off the magnetism of its 5-layer films
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