Articles tagged with Electric Fields
A simple device that uses an electrically charged tube to create an electric field that thins fuel has been developed, leading to a 20% increase in gas mileage in highway driving and a 12-15% gain in city driving. The technology has potential applications on all types of internal combustion engines.
Researchers at Penn State have discovered a new way to cool using ferroelectric polymers that exhibit temperature changes under an electrical field. The technology could lead to the development of flat panel refrigerators without coils or compressors, providing a more energy-efficient and environmentally friendly cooling solution.
Scientists at the University of Illinois have devised a method to characterize special surfaces by using a series of killer laser pulses. The technique measures the distribution of site enhancements on the substrate surface, allowing researchers to design better scattering surfaces for sensor applications.
Researchers at UF and FIT used electric field and X-ray detectors to study X-rays emitted by lightning. They found that X-rays are produced just below each step of the 'step leader' process, which helps understand how lightning travels.
Researchers at TU Delft have mapped the process of light passing through small holes, promising a significant improvement in Terahertz microscopy and microspectroscopy. The study confirms the Bouwkamp model and reveals that sufficient light can pass through even tiny holes, enabling measurements near the hole.
A recent study by NOAA scientists shows that certain metals can repel sharks from fishing gear, potentially reducing bycatch and saving millions of animals. The study used a palladium neodymium alloy to alter the swimming patterns of juvenile sandbar sharks, temporarily deterring feeding in groups.
Carnegie Mellon University researchers have developed a new manufacturing strategy that can improve the efficiency of drug delivery patches, solar cells, and high-performance computing by controlling particle distribution with electric fields. The method offers flexibility, precision, and simplicity, revolutionizing two-dimensional nan...
Scientists at North Carolina State University have developed Janus particles, microscopic spheres with different material properties on either side, which can move and respond to changes in their environment. The phenomenon, called induced-charge electrophoresis, has potential applications in microactuators, sensors, and drug delivery.
Nanoparticles have been shown to enhance the performance and stability of liquids when exposed to electric fields, leading to potential applications in miniature camera lenses, cell phone displays, and other microscale fluidic devices. The findings could enable new types of heat transfer systems that don't require a pump.
A team of researchers at the University of Michigan has developed a nano-scale voltmeter that can measure electric fields deep within cells. The device, which is 1,000-fold smaller than existing voltmeters, reveals surprisingly high electric field strengths in cytosol, challenging conventional wisdom about cellular processes.
Scientists successfully rotate single electron's spin using electric fields, a crucial step for future quantum computing. This breakthrough clears the path for a more powerful and efficient quantum computer.
A Cornell team unraveled the fundamental physics of ruthenium tris-bipyridine, a molecular semiconductor with potential for flexible light-emitting devices. The discovery reveals that an electric field is concentrated at interfaces, not in bulk materials.
The Peters' elephantnose fish uses its electric sense to detect the capacitative properties of objects, allowing it to distinguish between living and dead organisms. It can also measure distances with a precision of several millimeters and perceive complex images of its surroundings.
Physicists at the University of Bath are developing attosecond technology to create continuous series of light pulses that could enable precise control over electric fields. This could lead to the development of photonics-based devices, such as photonic computers, with potentially groundbreaking capabilities.
Researchers made an unprecedented measurement of the electric field in magnetic reconnection using ESA's Cluster satellites. They discovered that the electric field plays a key role in the process, releasing energy and triggering jets of energetic particles.
The new Georgia Tech satellite engine uses solar power and fine-tuned exhaust velocity to reduce fuel consumption by up to 40 percent. This allows for more payload in orbit and potentially lower launch costs.
Researchers at the University of Washington have developed a tiny ion pump that can cool small microelectronic components efficiently. The device uses an electrical charge to create a cooling air jet and has been shown to significantly cool an actively heated surface on just 0.6 watts of power.
Scientists at University of Wisconsin-Madison develop technique to time events at the atomic scale, enhancing understanding of material properties and enabling improved memory applications in microelectronics. The breakthrough uses X-rays from Argonne National Laboratory's Advanced Photon Source.
Researchers at Purdue University have developed a new cooling system that uses a micro-electromechanical system (MEMS) pump to cool electronic devices on a tiny scale. The device is integrated onto a silicon chip and can create a cooling action through electrohydrodynamics, enhancing the pumping action by up to 13 percent.
Researchers developed a novel capacitor design to measure breakdown voltage in air at the micrometer scale, providing insights into electrical behavior. The device enables accurate measurements of arc formation and can be used to optimize microelectro-mechanical systems (MEMS) and larger electrical systems for automobiles.
Rensselaer Polytechnic Institute researchers create tabletop accelerator that produces nuclear fusion at room temperature, doubling the acceleration potential of a previous design. The device has commercial applications in non-destructive testing, explosives detection, and medical imaging.
Researchers at Penn State and Rice University discover how to flip molecular switches by engineering their design and surrounding environment. They demonstrated that single-molecule switches can be tailored to respond in predictable ways, depending on the applied electric field direction.
Researchers at CU-Boulder developed a microscopic rotor that turns in a desired direction using an oscillating electrical field. The device has potential applications in nanotechnology machines and could be used to power chemical sensors, cell-phone switches, miniature pumps or even laser-blocking goggles.
Researchers at Ames Laboratory developed a method called dynamic multiple equilibrium gradients (DMEG) that enables hyperselective separation and concentration of specific analytes. This advancement allows for the detection of smallest substance traces, including estrogen-derived conjugates and DNA adducts in human fluid samples, poten...
Researchers at Arizona State University found that liposomes form microtubules under low electric fields, which may have significant implications for cellular biology and nanotechnology. The discovery could lead to new methods for fabricating bionanotubes.
Researchers have developed a method to stabilize and control the conductance state of single molecules using tailored intermolecular interactions. This breakthrough could lead to the development of molecular memory components with reduced power usage.
Scientists have developed a technique to visualize the electric field of visible light, measuring its variation with unprecedented resolution. This breakthrough enables direct and accurate measurement of ultrabroad-band light pulses, opening doors to new applications in molecular electronics and X-ray lasers.
Scientists have searched for large electric fields in thunderstorms without success. Dwyer's new theory shows that the atmosphere can only hold a certain sized electric field, stunted by gamma-rays and positrons. The triggering mechanism of lightning remains a mystery.
The new flat motor can be configured in various formats, including a thin version that can drive changes in airplane wing camber or serve as the drive element in compact laptop computers. The prototype has reached high speeds and maximum torque of 0.4 Nm, with cost estimates as low as $10 for mass production.
Researchers at UCSB and Pittsburgh have successfully controlled electron spins using electric fields, demonstrating a solid-state quantum logic gate that works with today's electronics. This breakthrough moves esoteric spin-based technologies closer to present-day possibilities.
The UCSB team has developed a reversible switch for surface design, allowing for dynamic regulation of macroscopic properties. The technology uses alkanethiolates to create nanometer-thin interfaces that can be controlled as a function of space and time.
Researchers develop a novel method to assemble nanoparticles using non-uniform AC electric fields, allowing for the creation of ordered structures with desired properties. This process can be used to manufacture nanoscale tools and devices, including sensors and photonic devices.
Research suggests that hammerheads' electrosensory function enhances their food-finding capabilities along the ocean floor. The study also found that the cephalofoil acts like a canard to increase maneuvering capabilities, enabling the sharks to turn more sharply and with greater velocity than comparable species.
Researchers developed a new technique, electrohydrodynamic atomization (EHDA), to produce monodisperse droplets of defined size for inhalation therapy. EHDA produced corticosteroid aerosols in quantities high enough for patient administration, showing promising results for more effective asthma treatment.
Researchers at North Carolina State University have developed a method for creating electrical circuits using self-assembling colloidal nanoparticles under the influence of an alternating current electric field. The process, known as dielectrophoresis, allows microwires to form spontaneously and can be used in wet environments.
Researchers create device that harnesses thermal fluctuations to separate membrane-associated molecules, providing a novel approach for studying cellular processes. The invention builds upon previous work on Brownian ratchets and utilizes microfabrication techniques to manufacture the device at an affordable cost.
Researchers from the Fritz Haber Institute found that chemical trigger waves can propagate instantaneously across a system, violating traditional notions of local causality. The experiment used an electrocatalytic reaction on a platinum ring electrode and demonstrated nonlocal coupling effects.
Researchers at Stanford University have observed the detailed structure of red sprites, finding thousands of vertical and tilted streamers with branching patterns. The findings suggest that electrostatic charge buildup in the atmosphere creates these spark channels, which ionize air molecules and produce glowing red streamers.
Scientists predict small-scale spark channels form at the breakdown points, propelled upward with velocities as fast as one-tenth of the speed of light. The new model explains recent observations of sprites, including intense bursts of blue light and radio waves in the extremely low frequency band.