Articles tagged with Electric Current
FAU researchers find that incoming light causes electrons to rotate, influencing current flow and improving the efficiency of perovskite crystals. Heating perovskites to room temperature reveals a link between electron spin and current flow.
Researchers at Lund University discovered that intestinal bacteria like Enterococcus faecalis can generate an electric current from breaking down sugar inside their cells. This finding has implications for bioenergy production, waste treatment, and biosensors.
Researchers at NTNU's QuSpin Center have successfully controlled a spin current across 80 microns in an antiferromagnet, demonstrating significant advancements in spintronics. This breakthrough enables the potential for more efficient and faster electronic devices.
Researchers have confirmed that bismuth possesses unique topological properties, enabling it to conduct electricity without dissipation. This breakthrough establishes bismuth as a higher-order topological insulator, opening up new possibilities for high-performance electronics and quantum computing.
Researchers from Singapore University of Technology and Design have resolved a major mystery in 2D material Schottky diodes by employing a rigorous theoretical analysis. A new theory describes different variants under a unifying framework, laying down a foundation to unite prior contrasting models.
Researchers have developed a technique to control individual molecules for a millionth of a billionth of a second, reducing reaction time by over two orders of magnitude. This breakthrough enables precise control over chemical reactions at the single molecule level, opening up new avenues for nanoscale research and discovery.
Researchers developed a three-dimensional model to estimate usable wind energy and found that repowering old plants with larger ones increases yields by several hundred percent. The study suggests that this approach can significantly reduce the cost of generating electricity comparable to brown coal.
Researchers developed a new type of hydrogen production catalyst with low cost, high catalytic activity, and high stability. The S, N co-doped carbon nanotube-encapsulated CoS2@Co composite exhibits excellent electrocatalytic properties, including rapid water dissociation under various operating currents.
Researchers at Carnegie Mellon University have developed a low-cost actuation technology that can bend, fold or flatten specially prepared paper on command. The technology uses a thin layer of conducting thermoplastic applied to common paper, which can be heated to expand and cause the paper to change shape.
Studies found associations between teleological thinking, creationism, and conspiracism, suggesting these beliefs share a common cognitive bias. Researchers aim to raise awareness about the flaws of conspiracy theories by highlighting their reliance on teleological reasoning.
Juelich researchers have designed a new cell type that can charge in under an hour, overcoming the low current hurdle. The battery uses a favourable combination of materials to enable high charging rates.
Scientists have found a way to control spin currents using magnetic fields and temperatures, significantly improving the efficiency of fundamental spintronic components. This breakthrough has the potential to revolutionize the design of storage devices like hard disks and create new technologies such as spin current switches.
Physicists have revealed new behavior involving magnetic antiparticles in ferromagnetic materials, which could lead to innovative data storage and processing methods. The researchers found that opposite topological charges can behave differently, resulting in the creation of skyrmion-antiskyrmion pairs.
Researchers found that antiskyrmions behave differently from skyrmions when electric currents are applied, creating periodic pairs and potentially providing a source of skyrmions. This phenomenon may hold clues to the imbalance between matter and antimatter in the universe.
Researchers at ETH Zurich explore the coupling between heat and particle currents in a gas of strongly interacting fermionic atoms. They found an order of magnitude below predictions of the Wiedemann-Franz law, indicating separation of mechanisms responsible for particle and heat currents.
Researchers are creating self-guided packages made of biodegradable materials to map coastlines and sea bottoms. These devices aim to dissolve upon reaching shore, providing up-to-date information on potentially hostile regions. Additionally, a swarm of drones will be developed using cameras, sonar, and sensors to evade tracking, with ...
Researchers at Florida State University's National High Magnetic Field Laboratory have discovered that cuprates, known for their unique behavior, carry current in a non-conventional way. The study reveals that the electrons seem to cooperate as they move through the material, contradicting the widely accepted understanding of conventio...
Researchers have developed a memory-processing unit using memristors, which can perform numerical calculations in parallel, reducing the need for manual multiplication and summation. This innovation has potential applications in machine learning, artificial intelligence, and simulations for weather forecasting.
Researchers at University of Surrey develop ground-breaking flexible X-ray detector, overcoming rigid detector limitations. The new technology achieves high sensitivity levels while operating at low voltages, enabling real-time imaging and border security monitoring.
IGZO TFTs have a high electron mobility of 10 times that of hydrogenated amorphous silicon, allowing for high-resolution energy-efficient displays. These displays are used in smartphones, tablets, and large OLED televisions, which were previously thought to be impossible.
Majorana fermions, which are self-antiparticles, can be detected using current noise in a topological Josephson junction. The study found that the non-equilibrium current noises exhibit peaks at specific frequencies, indicating the presence of these particles. This method provides a direct detection method for Majorana fermions.
Researchers propose a new method to protect power grid systems from cyber-attacks by utilizing PMUs and machine learning algorithms to identify real oscillations. This approach can help prevent catastrophic failures caused by GPS spoofing attacks
Researchers at the Princeton Plasma Physics Laboratory have discovered a mechanism called magnetic flux pumping that stabilizes plasma in tokamaks, preventing sawtooth gyrations and halting fusion reactions. This breakthrough could lead to the development of fusion energy by regulating plasma current and pressure.
Physicists develop mathematical formula to approximate magnetic field circulation around a closed path or loop, based on Biot-Savart's law. The study provides a new approach to evaluate the effects of magnetic fields on human health and prevent exposure.
PCRAM researchers review the development of phase change materials and propose a new understanding based on octahedral structure motifs and vacancies. This leads to decreased power consumption in phase transitions, enabling nanosecond or even sub-nanosecond operation.
Researchers at the University of British Columbia have developed a cheap and sustainable way to build solar cells using bacteria that convert light to energy. The cell generated a current stronger than any previously recorded and worked efficiently in dim light, offering a promising solution for regions with frequent overcast skies.
Researchers discovered that spiders can detect and respond to electric fields, which provide lift and trigger ballooning behavior. The study suggests that variation in atmospheric electric fields may explain dispersal patterns in spiders and other animals.
TU Dresden has improved significantly, moving up four positions from 10th to 6th in the DFG Funding Atlas, indicating its strong research record. The university has been steadily improving since 1997 and secured €260m in funding between 2014 and 2016.
A new practical Quantum Random Number Generator (QRNG) has been developed, enabling secure communication and overcoming weaknesses of current encryption. This game-changing technology will revolutionize internet security, making attacks based on predicting 'random' events a thing of the past.
An international team of researchers has identified the electrical activity specific to the start of migraines and demonstrated a way to stop it in animal experiments. They found that spreading depolarization, seen in migraines, can be stopped with an opposite direction of electrical current used to turn off seizures.
Researchers developed a computer game to examine relationships between countries and strategic environments. They found that having more allies can increase a country's responsibility, leading to decreased overall welfare. The study has potential implications for current events, including the China-US-North Korea conflict.
Researchers have developed a prototype for calibrating an entire solar field in a single night, shaving months off the current process. The innovation integrates digital cameras into heliostats to achieve pixel point accuracy, enabling precise calibration and reducing costs per square meter.
Researchers have developed a lightweight carbon nanofiber-based collector that can restrain dendrite growth and achieve uniform lithium deposition. The collector, made with high nitrogen-doping levels, improves energy density by up to 2489.7 mAh/g, enabling the practical use of lithium metal anodes.
The new transmitter uses ultrafast 'frequency hopping' and data encryption to protect signals from being intercepted and jammed. This technology could secure medical devices, wearables, vehicles, and smart household technologies, making the internet of things a more secure place.
Researchers at Columbia University have developed a single molecular insulator that can effectively block leakage current in transistors, paving the way for smaller and more efficient devices. The breakthrough uses quantum interference-based approach to create a novel technique for blocking tunnelling conduction at the nanoscale.
Researchers have developed a new method to predict molecular conductivity by calculating interactions between pairs of electrons, resulting in improved accuracy and reduced computational costs. The approach has been shown to outperform traditional models by one-to-two orders of magnitude.
A recent systematic review found that health information exchanges can significantly reduce healthcare costs and usage. Community-based exchanges showed more promising results than proprietary ones. The study's lead investigator attributed the difference to more mature systems being examined in the current review.
Researchers have discovered a new two-dimensional material, tellurene, derived from the rare element tellurium, which can make transistors carry current better throughout a computer chip. This breakthrough could lead to faster processing speeds in electronic devices and defense technologies.
A new magnetometer network has been installed across South America to study magnetic field disturbances and their potential impact on electronic appliances and power grids. The project aims to improve the understanding of space weather effects on the continent, which could help mitigate damage caused by solar eruptions.
A national survey found an increase in US adults who have ever used e-cigarettes, with a decrease in reported current use between 2014 and 2016. Electronic cigarettes were marketed for smoking cessation and as an alternative to conventional cigarettes.
Scientists investigate vibration energy of a single molecule on a surface, measuring the current generated by applying voltage between a probe tip and the surface. The study uses a classical model to reproduce experimental results, shedding light on interaction between molecules and surfaces.
A new MRI component in the shape of a glove delivers clear images of bones, tendons, and ligaments moving together for the first time. The technology has potential for diagnosing repetitive strain injuries and creating a more versatile atlas of hand anatomy.
Researchers at IST Austria propose using disk space instead of computational power to secure blockchains, reducing energy consumption and promoting sustainability. The 'proofs of sequential work' approach has the potential to revolutionize blockchain design, offering a more eco-friendly alternative to traditional proof-of-work systems.
Researchers at UC Riverside have developed a new 1D material that can conduct high current densities, paving the way for nanometer-scale transistors and circuits. The material, zirconium tritelluride, surpasses conventional copper interconnect technology by 50 times.
Researchers have uncovered characteristics of magnetic solitons, a type of magnetic wave relevant to developing neuromorphic computing systems. The findings reveal how these components act, which is essential for realizing their potential in brain-inspired computing.
A study of recent geomagnetic excursion events found no resemblance between current changes and past reversals, suggesting recovery without extreme event. The research implies the weakened magnetic field will recover, making a reversal unlikely.
Researchers present a case study on ischemic secondary mitral regurgitation, highlighting the importance of multidisciplinary teams in managing this complex condition. Newer technologies provide new hope for patients, improving outcomes and treatment options.
Researchers developed soft actuator prototypes with tunable parameters, achieving larger deflections than other recent examples. The 3-D printed dielectric elastomer actuators (DEAs) can perform high bending motion without skeletal support.
Researchers have discovered a way to create superconducting materials that carry 'spin' currents, improving efficiency in high-performance computing. By aligning electron spins, they can generate pure spin supercurrents, which could use significantly less energy than current silicon-based electronics.
Researchers developed a model to test the cost and capabilities of a fleet of shared, automated electric vehicles in New York City. The study found that about 6,500 vehicles could be sustained on 1,500 medium-power electric vehicle chargers across Manhattan, resulting in a 33,000-ton reduction in carbon dioxide emissions per year.
Researchers at Saarland University develop a sensor-free control methodology for electromagnetic valves and locks, achieving high-precision control without additional position sensors. The new technology allows devices to maintain intermediate positions and operate continuously variable systems.
Researchers developed a point-of-care device that simultaneously probes patient hemodynamics, chemical constitution, and anatomy to diagnose thyroid nodules. The device uses near-infrared time-resolve spectroscopy and diffuse correlation spectroscopy to collect tissue data, promising improved accuracy and reduced costs.
Researchers at NIST and Johns Hopkins University discovered a zero-field switching effect that enables stable, non-volatile memory devices without magnetic fields. This breakthrough could lead to smaller, lower-power computing devices.
Researchers developed a stable mechanical setup to measure electrical current across individual molecules on a noble metal surface. The study provides fresh ideas for electronic devices and opens opportunities for new studies on nanocontacts, dynamics, and transport of molecules at room temperature.
Researchers have discovered a way to control the spin current in double-stranded DNA molecules using temperature gradients. They found that the inherent chirality feature in dsDNA enables spin selection and can act as a filter for spin transport.
Researchers have discovered graphene nanoflakes that can exploit quantum effects to modulate current flow. The flakes also exhibit new magnetic properties, enabling the creation of spin currents and potential applications in spintronics.
A report recommends replacing problem-oriented EHRs with goal-directed designs that incorporate patient profiles, health planners, and actionable information. This shift would improve patient care and refocus medical professionals on human health's full scope.
Engineers at Nokia successfully transmitted 78 interleaved 400 Gb/s channels with a 31.2 Tb/s fiber capacity in real-time bidirectional transmission, surpassing previous demonstrations. The setup utilized commercially available transponders and standard fibers to achieve high spectral efficiency.
Researchers at Arizona State University have designed and tested a DNA circuit capable of splitting and combining current, like an adapter connecting multiple appliances to a wall outlet. The use of G-quadruplex DNA improves charge transport properties, enabling the creation of new nanoelectronics.
Researchers at Oregon State University found that newly-hatched salmon use the geomagnetic field to orient themselves vertically when emerging from gravel nests. This ability allows them to navigate three-dimensionally and orient themselves in their environment, which is crucial for survival.