Articles tagged with Electric Fields
Researchers at Florida Atlantic University have developed a patent-pending shark deterrent that can be used to reduce bycatch in fisheries. The device produces an electric field that repels sharks from bait without affecting target fish, and has been shown to reduce catches of coastal sharks by 62-70%.
A new study finds that traffic-related pollution causes immediate changes in the atmospheric electric field, while particulate matter affects it more slowly. The research also identifies a 'weekend signal' where reduced emissions lead to a weakened electric field.
Researchers at Virginia Tech have developed a new method for removing frost from surfaces using electrostatic defrosting (EDF), which can remove up to 75% of the frost without the need for heat or chemicals. The approach uses high voltage to polarize the frost, creating an electric field that detaches microscopic ice crystals.
Engineers develop a self-forming protective layer to prevent dendrite growth and parasitic reactions, enabling unprecedented performance and resilience. The bi-directional regulation system maintains stability across wide temperatures, paving the way for practical grid-scale applications.
Scientists have successfully measured ultrafast electric fields using a diamond nonlinear probe, achieving femtosecond temporal and nanometer spatial resolution. This breakthrough enables the detection of local electric field dynamics near surfaces with unprecedented precision.
Researchers at Tohoku University found that C60 fullerene can serve as an active catalytic site for CO2 electroreduction, improving the efficiency of reactions like hydrogen evolution and carbon dioxide reduction. The discovery opens new possibilities for designing efficient, metal-free catalysts to combat climate change.
Researchers at Nagoya University developed an interface that creates programmable electric fields to sort graphene oxide without fixed microfluidic devices. The findings allow precise sorting of GO sheets, which can capture pollutants, solvents, and biomolecules based on their size-dependent properties.
The EBDM system effectively controls membrane fouling, enhances effluent quality, and improves methane productivity in wastewater treatment. The electric field modifies the physicochemical properties of the biomass, reducing the fouling potential and promoting microbial metabolism.
Scientists successfully fabricated micron-scale metal patterns on living tardigrades, enabling controlled movement through magnetic fields. This breakthrough opens doors for micro/nanofabrication of living organisms and bio-inorganic hybrid systems.
A recent study identified a quasi-conversion reaction on the cathode surface during discharging, leading to accelerated battery degradation. High nickel content exacerbates this effect.
Physicists at Max-Planck-Institut fur Kernphysik measured the g factor of highly charged boron-like tin ions with a precision level of 0.5 parts per billion. The result demonstrates potential for competitive determination of fine structure constant α, governing electromagnetic forces throughout the universe.
The device enables precise control over terahertz wave polarization, revolutionizing applications such as data transmission, imaging, and sensing. This innovation promises to transform fields like wireless communication and biomedical imaging.
The Southwest Research Institute-led instrument measures electric and magnetic fields to characterize the lunar subsurface, shedding light on material differentiation and thermal history. The deployment marks a new era in lunar exploration, providing unprecedented insights into the Moon's composition and structure.
Researchers at Lancaster University are developing high-performance memory devices using self-assembled molecular technology to overcome the von Neumann bottleneck in computing. The Memristive Organometallic Devices (MemOD) project aims to deliver faster, more stable, and energy-efficient AI hardware.
A study by Washington University in St. Louis researchers has found a critical role for the physical interfaces of amyloid beta peptides in determining their chemical dynamics, leading to neurodegeneration. The research identified small molecules capable of breaking the toxic feedback loop, providing evidence that proper nutrition may ...
Scientists at Nagoya University developed a nanoscale video game that manipulates nanoparticles in real-time, enabling interaction between virtual and physical objects. The 'nano-mixed reality' system has potential applications in nanotechnology and biomedical engineering, including 3D printing and targeted virus killing.
MIT engineers have developed a fully 3D-printed electrospray engine that can be produced rapidly and at a lower cost than traditional thrusters. The device generates stable and uniform flow of propellant, producing as much or more thrust than existing droplet-emitting electrospray engines.
Researchers at Lancaster University have successfully demonstrated negative refraction using atomic arrays, eliminating the need for metamaterials. This achievement paves the way for novel technologies based on negative refraction, including perfect lenses and cloaking devices.
Researchers found that the mites sense and rely on electric fields generated by hummingbird wings for survival. The study revealed that the mites are attracted to specific frequencies of static electricity and can recognize positive charges.
Researchers at Peking University demonstrate potential of nuclear electric resonance to control nitrogen atom spins in DNA, encoding genetic information. The study reveals intricate relationships between electric field gradients, nitrogen orientations and DNA base structures.
Scientists have successfully created nanoislands on silicon that can be controlled by an external electric field. These nanoislands exhibit swirling polar textures with promise for future applications in ultra-high-density data storage and energy-efficient transistors.
A study reveals that cells in the neural crest, which forms bones and nervous system tissues, use internal electric fields to migrate. This process, known as electrotaxis, is guided by an enzyme called voltage-sensitive phosphatase 1 (Vsp1), which converts electrical signals into directional cues.
Researchers at UCLA have developed a compact cooling technology that can continuously pump away heat using layers of flexing thin films. The prototype lowered ambient temperatures by 16 degrees Fahrenheit and up to 25 degrees at the source of heat, offering a simpler design without greenhouse-gas-generating coolants or liquids.
Researchers from Pohang University of Science & Technology confirm the existence of hidden transport pathways in graphene, which enables faster and more efficient data handling. The study sheds light on the 'Valley Hall Effect' and its role in nonlocal resistance, providing crucial insights for advancing valleytronics device design.
By reducing the thickness of a commonly-used piezoelectric ceramic material, researchers at Indian Institute of Science (IISc) show that its efficacy can be dramatically increased, resulting in improved strain values. The team discovered that removing oxygen vacancies in lead-free piezoceramics also boosts electrostrain to 1% or higher.
A research team at Pohang University of Science & Technology developed a technology that visualizes the deformation of 'serpentine' structures in real-time through color changes. This innovation eliminates the need for complex nanofabrication processes, providing actionable design guidelines for optimizing these structures.
Researchers used time-delayed laser pulses to capture electric and magnetic field vectors of surface plasmon polaritons, revealing a meron pair's spin texture. The study demonstrates stable spin structures despite fast field rotations.
Pratyanik Sau, a senior at the University of Texas at Arlington, won an Outstanding Undergraduate Student Oral Presentation Award for his research on graphene using positrons. The study has implications for designing particle accelerators and fusion reactors.
Researchers at City University of Hong Kong have observed a new vortex electric field with the potential to enhance electronic, magnetic and optical devices. The discovery enables the creation of quasicrystals with versatile applications in memory stability, computing speed, spintronics and sensing devices.
A team of researchers successfully demonstrated nonlinear Compton scattering using a multi-petawatt laser, producing ultra-bright gamma rays. The achievement offers new insights into high-energy electron-photon interactions without traditional particle accelerators.
Researchers analyzed data from southern Israel to find significant electric field changes during heavy precipitation, suggesting early indicators for extreme weather. The study highlights the potential of incorporating electric field observations into weather monitoring systems for enhanced nowcasting capabilities.
Researchers developed a large-scale optical programmable logic array that can execute complex models like Conway's Game of Life, marking a significant advancement in optical computing. The array uses parallel spectrum modulation to achieve an 8-input system, significantly expanding the capabilities of optical logic operations.
A team at Osaka Metropolitan University has designed a multilayer device to investigate spin currents, using an organic semiconductor material with a long spin relaxation time. This allows direct observation of phenomena due to spin current generation and enables researchers to gain deeper insights into the properties of spin currents.
Scientists at Max Planck Institute for Dynamics and Self-Organization created a navigation system for artificial microswimmers, enabling control over their movement using electric fields and flow. The system generates various motility patterns, including adhesion to channel walls or centerline motion.
Researchers developed a machine learning model to predict dielectric function of materials, facilitating novel dielectric material development. The model speeds up calculations by using chemical bonds between atoms and achieving accuracy close to first-principle calculations.
Researchers have developed a reconfigurable three-dimensional integrated photonic processor specifically designed to tackle the subset sum problem, a classic NP-complete challenge. The processor operates by allowing photons in a light beam to explore all possible paths simultaneously, providing answers in parallel and demonstrating hig...
Researchers from KAIST have developed a new hydrogen production system that overcomes current limitations of green hydrogen production. The system uses a water-splitting process with an aqueous electrolyte, achieving high energy density and long-term stability.
Researchers at Newcastle University developed a novel approach using electromagnetic waves to solve partial differential equations, specifically the Helmholtz wave equation. The innovative structure, known as a metatronic network, effectively behaves like a grid of T-circuits and allows for control over PDE parameters.
Researchers successfully visualized tiny magnetic regions, known as magnetic domains, in a specialized quantum material using nonreciprocal directional dichroism. They also manipulated these regions by applying an electric field, offering new insights into the complex behavior of magnetic materials at the quantum level.
Researchers have discovered Flickering Gamma-Ray Flashes (FGFs), a phenomenon that could be the missing link between Terrestrial Gamma-ray Flashes and gamma-ray glows. Studies reveal dynamic gamma-ray emissions in tropical thunderclouds, challenging previous assumptions about these events.
Scientists developed a streamlined approach to assemble 2D molecular structures using a supramolecular scaffold, enhancing the efficiency of singlet fission and paving the way for advancements in solar cells. The new method created two distinct 2D self-assembling structures with high quantum yields, outperforming previous designs.
Researchers at Pohang University of Science & Technology developed a non-fluorinated battery system to comply with environmental regulations and enhance battery performance. The innovative 'APA-LC' system, entirely free of fluorinated compounds, shows improved oxidation stability and higher capacity retention.
Researchers at Harvard University have developed a new device that can easily twist and study 2D materials, opening up new possibilities for discovering new phases of matter. This innovation uses micro-electromechanical systems to control the twist angle, making it easier to produce unique samples and study their properties.
Scientists have successfully measured a planet-wide electric field thought to be fundamental to Earth's atmosphere. The ambipolar electric field, driving atmospheric escape and shaping the ionosphere, has been quantified and revealed its role in our planet's evolution.
A team of researchers at UC Davis Health discovered a novel bioelectrical mechanism that allows Salmonella bacteria to navigate the gut lining and find vulnerable entry points. The study found that Salmonella bacteria detect electric signals in FAE, which helps them move towards openings in the gut where they can enter.
Researchers developed an inexpensive, water-powered electric bandage that accelerates wound healing in chronic wounds. The bandage produces an electric field that promotes healing and reduces inflammation, with animals treated with the bandage showing a 30% faster rate of wound closure.
Piezoelectric materials are used in sonar and ultrasound applications, but can deteriorate due to heat and pressure. Researchers have developed a technique to depole and repole these materials at room temperature, allowing for easier repair and paving the way for new ultrasound technologies.
An international team successfully realizes periodic oscillations and transportation for optical pulses using a synthetic temporal lattice. They observe the features of SBO collapse, including vanishing oscillation amplitude and flip of initial oscillation direction.
Researchers at Argonne National Laboratory have made significant strides in understanding the mesoscale properties of a ferroelectric material under an electric field. The breakthrough holds potential for advances in computer memory, lasers, and sensors.
A groundbreaking quantum sensor capable of detecting minute magnetic fields has been developed through international scientific collaboration. The sensor utilizes a single molecule to sense electric and magnetic properties of atoms, offering spatial resolution on the order of a tenth of an angstrom.
Researchers proposed a design strategy to mitigate nonlinear responses in polycrystalline metal halide perovskite X-ray detectors, addressing issues like 'delay' and 'ghosting'. The study demonstrated high-resolution X-ray imaging with suppressed ghosting contrast and top sensitivity for similar X-ray energies among polycrystalline per...
Researchers have discovered aluminum scandium nitride (AlScN) films that remain stable and maintain their ferroelectric properties at temperatures up to 600°C, making them promising candidates for next-generation ferroelectric memory devices. The films exhibit a high remnant polarization value and only a slight increase in coercive fie...
Researchers discovered a promising approach to manipulating light in an ultrathin material that could be useful for devices like LEDs and medical imaging. The study used SLAC's world-leading instrument to visualize the electric and magnetic fields of terahertz pulses, indicating circular polarization in the material.
A team from Osaka University demonstrates greater control of ion passage through a nanopore membrane by applying a voltage to a gate electrode. This leads to a six-fold increase in osmotic energy efficiency and a power density of 15 W/m^2, enabling the potential for scaling up the technology.
Caterpillars respond defensively to electric fields similar to those emitted by their natural predators. The study found that caterpillar hairs move in response to electric fields and are most sensitive to frequencies corresponding to wingbeat frequencies of other insects.
Researchers from Tokyo Institute of Technology experimentally revealed that high-density Ca introduction enhances superconductivity in graphene-calcium compounds through confinement epitaxy, leading to increased critical temperatures. This breakthrough could enable the development of C6CaC6 superconductors with wide applicability in qu...
Scientists have recorded X-rays being produced at the beginning of upward positive lightning flashes, providing valuable insights into the origins of this rare and dangerous form of lightning. The observations, made possible by a unique setup in Switzerland, support the cold runaway electron model theory of lightning formation.
Researchers developed nanodots with single ferroelectric and ferromagnetic domains using multiferroic material BFCO, enabling energy-efficient writing and reading operations. The smaller nanodot showed a single-domain structure, while the larger one exhibited multi-domain vortex structures, demonstrating strong magnetoelectric coupling.
Researchers at Tohoku University have made a breakthrough in understanding spin currents in insulating magnets. They found that the spin current signal changes direction and decreases at low temperatures, shedding light on its propagation direction.
Recent advances in electrical control of magnetism are reviewed, covering fundamental concepts and device families for various applications. The combination of electric fields and current-induced torques enables new properties and devices, such as MRAMs and spin diodes.