Articles tagged with Electric Current
Columbia University researchers develop a new technique to create single-molecule diodes, outperforming previous designs by 50 times. The breakthrough enables high current flow and rectification ratios, paving the way for nanoscale devices with real-world technological applications.
A new study reveals that tinnitus is represented differently in the brain compared to normal sounds, and that it may not be just a 'gap' left by hearing damage. The discovery could inform treatments such as neurofeedback and electromagnetic brain stimulation.
Scientists Russell Hemley and Ivan Naumov found that certain metals transition from being metallic to insulating under pressure, and vice versa. They identified the physics framework underlying these transformations, which involves specific electron configurations and asymmetry.
A newly formed high-level commission, in partnership with The Lancet, focuses on law's role in addressing pressing global health concerns. The Commission seeks to define the current landscape of law affecting global health and safety and highlight opportunities for improvement.
Researchers at HZDR and University of Konstanz successfully switch on a single molecule using light, enabling the creation of smallest possible components. The diarylethene compound exhibits unique physical behavior, rotating minimally when open and becoming conductive when closed.
Researchers at UNC School of Medicine found that a low dose of electric current enhances alpha wave oscillations, boosting creativity by 7.4% in healthy adults. The study's results now pave the way for testing this protocol to alleviate symptoms in people with depression.
Researchers at Berkeley Lab found a technique to switch magnetic domain wall chirality, paving the way for desired electronic memory and logic functions. This breakthrough could lead to smaller, faster, and more energy-efficient devices through solid-state magnetic memory.
A team of Northwestern researchers has made a breakthrough in memristor technology, creating a three-terminal device that can be widely tunable. This innovation brings us closer to brain-like computing, which could revolutionize the way we process information.
Researchers have developed a new tandem solar cell that combines two types of photovoltaic material to harvest a broader range of the sun's energy. The new cell achieves an efficiency of 13.7 percent, which could be improved to over 30 percent with low-cost modifications.
Columbia engineers invent nanoscale IC that enables simultaneous transmission and reception at the same frequency in a wireless radio, doubling data capacity. The technology, known as full-duplex radio integrated circuits (ICs), cancels transmitter echo and enables conversations to take half the amount of time.
Researchers at Toyohashi University of Technology developed a novel negative electrode material for Li-ion batteries with improved high power and safety. Vacuum annealing enhances the electronic conductivity of Ti-Nb oxide, leading to better performance at high current rates.
Researchers report that aligning work schedules with employees' biological clocks can improve sleep duration and quality, as well as social jetlag and general wellbeing. The study found that flexible work schedules reduced stress and improved satisfaction with leisure time.
Researchers at Cornell University have developed a new thin-film catalyst, Bi2Pt2O7 pyrochlore, which could be a more effective cathode for fuel cells. The material was synthesized using pulsed laser deposition and has shown promising properties for fuel cell applications.
Theoretical astrophysicists discovered that gravitational waves from merging binary neutron star systems have a characteristic spectrum similar to atomic spectral lines. This allows for the inference of neutron star properties, including equation of state and stellar structure.
Researchers have found that electric current flows unimpeded through tiny channels on the surface of certain metals, reducing energy losses and enabling novel information processing techniques. This breakthrough has significant implications for the development of new electronic devices and quantum computing systems.
Researchers in California and Japan develop OLEDs with finely patterned structures, producing bright, low-power light sources. The key finding is confining charge transport and recombination to nanoscale areas, extending electroluminescent efficiency by almost two orders of magnitude.
A team of researchers from the University of Luxembourg and TDK has improved a conductive oxide film to increase transparency in the infrared region, enabling solar cells to harness more sunlight. The breakthrough allows for stable films that retain conductivity after exposure to air for over a year.
A study by Ruhr-University Bochum scientists and colleagues identifies specific brain regions responsible for spatial memory. The researchers found that suppressing irrelevant activities improves spatial navigation accuracy.
A new study by scientists from Bangladesh explores the viability of a novel structure for generating high-power microwaves, offering an alternative to traditional approaches. The proposed semi-circular slow wave structure is capable of producing high-power microwaves via ultra-high-frequency radio waves.
Electrochromic polymers offer a broad range of colors, including four shades of brown, for use in sunglasses, window tinting, and other applications. The materials can be easily switched on and off using low-voltage electrical current.
Researchers at Aalto University and the University of Zurich have successfully imaged electron interactions in a single molecule. The study reveals exotic effects that were previously neglected, shedding light on device performance.
A team at Cornell University has developed a room-temperature magnetoelectric memory device that can switch between magnetic states using an electric field. This breakthrough could enable low-power computing and make instant-on devices a reality.
A recent article collection in BMC Medicine examines the safety of e-cigarettes, with two experts offering differing views on their impact. Peter Hajek argues that e-cigarettes are orders of magnitude safer than conventional cigarettes, while Charlotta Pisinger believes they can be less harmful but still pose health risks.
Researchers discovered a counter-intuitive current induced by sound waves in a disordered environment. Noise fluctuations lead to directed electron transport behavior and current reversal, paving the way for innovative semi-conductor devices.
Researchers at Notre Dame designed a highly accurate traffic prediction model that considers both time-based and distance-based costs. The model outperformed previous models when predicting commuter flows, demonstrating its potential to predict the impact of network disruptions.
Researchers have created a new material that can detect explosives and toxic gases in seconds, offering four advantages over current detectors: sensitivity, accuracy, speed, and cost-effectiveness. The breakthrough could lead to flexible solar panels and improved public safety.
Researchers at MIT have developed a new way to coat batteries with a special material that prevents them from conducting electricity after being swallowed. The QTC-coated batteries were found to not damage the gastrointestinal tract in animal tests, showing promise as a safer alternative.
Researchers at Berkeley Lab have observed the molecular structure of liquid water at a gold surface under different charging conditions using XAS. The team developed a method to determine the arrangement changes of molecules depending on the voltage, shedding light on battery performance and materials science.
The Chinese power grid is facing significant challenges in modernization, including improving asset utilization rates and integrating distributed generation. According to a recent study, the annual average utilization rates of major 10kV equipment were below 40% in 40 Chinese cities, far below comparable levels in developed countries.
The nanocryotron device uses a single layer of niobium nitride deposited on an insulator to create a simple superconducting circuit. By controlling the flow of current through the circuit, it can act as a switch, making it a potential component for digital computers.
Scientists at NTU Singapore have created a new battery that can be recharged up to 70 percent in only 2 minutes, with a lifespan of over 20 years. This breakthrough enables electric vehicles to charge 20 times faster than current technology, reducing recharge time from over 4 hours to under 15 minutes.
The study reveals two distinct stages in Earth's response to solar wind forcing, with most energy deposited in the polar atmosphere during the second stage. Researchers are working to understand a potential delay between stages, which could provide near-term warnings for space weather disruptions.
Physicists at the University of Utah have developed a method to control electrical current in a cheap, plastic LED using nuclear spins. They achieved this at room temperature without strong magnetic fields, bringing the study closer to practical machines that work spintronically.
Researchers at the Niels Bohr Institute found that nerve impulses can collide and continue unaffected, similar to how sound waves work. This supports the theory that nerves function as sound pulses, with the electrical signal being caused by a mechanical force rather than an electric current.
Scientists at Vienna University of Technology have managed to explain how a laser pulse can change the electronic properties of glass, making it conduct electricity. The effect happens so quickly that it can be used for ultra-fast light-based electronics.
Scientists at Brookhaven National Laboratory discovered nanoscale asymmetries and charge preferences in ferroelectrics, explaining operational limits. These findings open new pathways for ferroelectric technology, despite material fatigue and intrinsic charge preferences.
Scientists create a temporary tattoo sensor that detects and responds to lactate in sweat, producing an electrical current. The device continuously monitors sweat lactate levels over time and with changes in exercise intensity, enabling the creation of sweat-powered biobatteries.
Researchers have discovered a way to efficiently generate and control currents using the magnetic nature of electrons in semi-conducting materials, which could lead to the development of new electronic devices. This approach, known as spintronics, has the potential to outperform traditional technologies with lower power consumption.
Scientists have identified the underlying force of magnetism as the key to high-temperature superconductivity in cerium, cobalt, and indium. By analyzing experimental data using a novel theoretical framework, researchers successfully predicted the material's superconducting properties.
Researchers have successfully demonstrated a photonic router – a quantum device based on an atom that enables routing of single photons by single photons. This achievement brings closer the goal of building quantum computers, which rely on superposition and photonic communication to process data in parallel.
Researchers at TU/e Eindhoven University of Technology have developed a new technology that can store data a thousand times faster than current methods by utilizing the 'spin current' property of electrons. This innovation enables faster switch times and opens up possibilities for future optical computer chips.
Researchers at the University of Illinois have developed a new method to generate spin currents in nanoscale devices, enabling faster operation of magnetic memory devices. The technique uses temperature differences to transport spin-angular-momentum, overcoming limitations of traditional electrical current-based methods.
A laboratory study has found that taking into consideration both the current and previous orders in flexible joints can significantly reduce energy consumption. The researchers used polynomial or fractional order reconstructions, which may be of interest for robot elbows and wrists, with potential savings up to 40%.
Researchers from Russia, Belarus and Spain create a microscopic force sensor based on carbon nanotubes, allowing accurate control over coaxial cylinders in two-layer nanotubes. The device can measure forces as small as tenths of a nN, opening up potential applications beyond micro scales.
Researchers at Duke University have developed a method to measure the response of an individual neuron to transcranial magnetic stimulation (TMS), a procedure used to treat psychiatric disorders. By recording activity from single neurons during TMS, the team gained a basic understanding of the technique's physiological mechanisms.
Researchers investigated aesthetic nasal tip projection and rotation in white women, revealing significant individual variability. The study's findings have implications for cosmetic surgery and rhinoplasty procedures.
The discovery of the electric eel genome sequence sheds light on the genetic blueprint used to evolve complex, novel organs. Researchers found that fishes with electric organs have evolved six times in history to produce electricity outside their bodies.
The magnetic hose, made of a ferromagnetic cylinder covered by a superconductor material, efficiently transports magnetic fields. The device has potential applications in quantum computing, enabling individual control over quantum systems.
Researchers at the University of Michigan have discovered that metal particles in memristors can migrate and form bridges between electrodes, allowing for more efficient chip design and potential advancements in memristor technology. The findings, published in Nature Communications, have broad implications for the semiconductor industry.
University of Washington researchers have confirmed the presence of ferroelectric switching in biological tissues, particularly in proteins found in organs that repeatedly stretch and retract. This phenomenon may help build and support healthy connective tissues in mammals and potentially detect early stages of hardening of arteries.
Scientists from Brown University used a specific type of virus to study the interaction between polymer strands like DNA and tiny holes, known as nanopores. The findings may lead to breakthroughs in DNA sequencing and pathogen detection.
Researchers at KU Leuven have discovered a causal link between brain activity in the ventral tegmental area and choice behavior in primates. By stimulating this area with electrical pulses, macaques were able to change their preference for images, highlighting the importance of dopamine in regulating learning and reinforcement.
A Rice University researcher is rebooting 'deep brain stimulation' technology to treat Parkinson's disease and other neurological disorders. The new technique uses embedded processors and real-time analytics to optimize results, potentially increasing effectiveness for a third of patients.
A NASA pilot project measures geomagnetically induced currents (GICs) in real-time, providing unprecedented data gathering and insights into Earth's upper atmosphere. The goal is to better understand GICs and their impact on the US power grid.
Researchers at UMass Amherst and INPA discovered a new genus and species of electric knifefish in the Negro River, revealing unique features such as electric organs and distinct pulse patterns. The discovery is expected to contribute to a better understanding of Amazonian biodiversity and its adaptations.
Researchers found that boosting runaway neuronal activity triggers a compensatory self-stabilizing response, restoring balance and reversing depression-like behaviors. This 'homeostatic resilience' mechanism may lead to new antidepressant strategies, targeting the brain's reward circuit.
Researchers at Arizona State University have developed a technique to identify amino acids, including subtly modified variants, by analyzing electrical activity signals. This breakthrough advances the prospect of clinical protein sequencing and discovery of new biomarkers for diseases such as cancer and Alzheimer's.
A study of 949 smokers found that e-cigarette use was not associated with greater quitting rates or reduced cigarette consumption. E-cigarettes were more commonly used by women and younger adults, but their effectiveness as a smoking cessation tool remains inconclusive.
A study found that consumers who feel powerful are more inclined to switch products or services. Brands can benefit by measuring consumer empowerment and diversifying their product lines. Empowering consumers through marketing campaigns can also lead to increased business.
Researchers developed a new component, Source-Gated-Transistor (SGT), to create ultra-lightweight and flexible gadgets. SGTs improve energy efficiency and reduce costs, making them ideal for next-generation electronic devices.