Articles tagged with Electromagnetic Fields
Researchers create ultrafast electron imaging instrument to map electromagnetic fields oscillating at billions of cycles per second. The new technology enables precise detection and measurement of tiny, rapidly oscillating electromagnetic fields.
A Kyoto University study shows tsunami-borne EM fields can extract key information about earthquake hypocenters, including fault dip direction, which helps with early warning systems. This discovery could lead to improved tsunami forecasting and timely evacuations.
Researchers at Saarland University are developing intelligent roller conveyor systems that can adapt to changing conditions and detect faults, improving production efficiency. The system uses advanced sensor technology to analyze motor data and adjust its performance in real-time.
Researchers at UT Dallas discovered that exposure to low levels of radio-frequency electromagnetic fields from cellphone towers can cause pain in individuals with nerve injuries, including amputees. The study suggests a specific nerve pathway and protein TRPV4 may contribute to this phenomenon.
Scientists have created two innovative techniques to visualize microwave fields, utilizing spin states induced by microwaves. The first method uses rubidium atoms in a glass cell to image the field in high resolution, while the second method employs individual electrons in diamond to produce nanoscale images.
Physicists have developed a radical new theory that confines electromagnetic energy without leaking away, with potential applications in explaining dark matter and combating energy losses. The theory contradicts fundamental principles of electrodynamics but could lead to breakthroughs in quantum computers and laser technology.
A team of researchers has created a new implantable drug-delivery system using nanowires that can be wirelessly controlled, allowing for precise and targeted treatment. The system showed promise in reducing inflammation and scar formation in mice with spinal cord injuries.
By using a superconducting island to mediate interaction, researchers increased radiation pressure coupling by a millionfold, enabling observation of quantum phenomena in larger structures. This breakthrough paves the way for studying mechanical oscillations at the level of a single photon.
The study introduces a new developed CSELF technique and experimental examples, which can observe not only crustal resistivity but also electromagnetic fields. The technique is found effective for data analysis, e.g., EM spectra and apparent resistivities, using software such as the 'wavelet maxima' method.
Researchers found low field magnetic stimulation (LFMS) to have rapid mood-elevating effects in depressed patients. A portable device delivered a low strength, high frequency electromagnetic field waveform to the brain, resulting in an immediate and substantial improvement in mood.
Researchers at NC State University developed a new technology to transmit power wirelessly from a stationary source to a mobile receiver, overcoming previous limitations in efficiency and safety. The system can now efficiently recharge electric vehicles as they drive by, with the goal of increasing power transmission to 50 kW.
The Journal of High Energy Astrophysics aims to publish impactful and rigorous papers on high energy phenomena, including black holes, neutron stars, and supernovae. The journal offers free online access for all articles published in the first year.
Researchers propose that most of the universe's dark matter could be made up of particles with a donut-shaped electromagnetic field called an anapole. This unique property makes it difficult to detect, but also allows for specific predictions about its behavior in vast detectors.
A study found that media reports about electromagnetic hypersensitivity can trigger symptoms in susceptible individuals, even if there is no objective reason. The nocebo effect, where expectation of negative effects increases likelihood of experiencing symptoms, was observed.
Using metamaterials, researchers at the University of Pennsylvania have developed a theory for creating materials where electrons have nearly zero effective mass. This concept could lead to faster circuits with unique properties. The team's idea was inspired by the similarities between electromagnetic waves and quantum mechanics, and t...
Standard head movements during MRI scanner exposure temporarily lower concentration and visuospatial awareness, particularly in tasks requiring high working memory. This may have implications for surgeons and other healthcare staff.
Researchers at Harvard University have developed a new device that can trap tightly and efficiently, eliminating the problem of overheating in traditional optical tweezers. The new plasmonic nanotweezers use light from a laser to create strong forces on nanoscale particles.
Recent PET-measurements show that mobile phone signals suppress glucose metabolism in specific brain areas. The study, conducted on 13 young males, reveals a methodologically unique approach combining brain imaging, radiation measurements, and modeling.
Researchers achieve precise control over ultrashort light pulses, enabling the manipulation of electron motion in atoms and molecules. This breakthrough enables new tools for studying sub-atomic processes and understanding atomic interactions.
A new study by Brigham Young University researchers reveals that black holes' movement, including lateral motion and spin, fuels massive jets of energy known as quasars. The study confirms a long-held theory while introducing a new component: that black holes' lateral movement also powers these jets.
Neuroscientists from Ruhr-University Bochum found that high-powered electromagnetic fields emitted by mobile phones can disturb learning processes on the synaptic level within the brain. However, daily use of mobile phones is unlikely to cause significant harm.
Researchers have developed a single molecule imaging technology called BEAST to map the electromagnetic field inside nano-sized metal hotspots. The results show highly localized fields with exponential shapes that rise steeply to peaks and decay quickly.
Researchers are studying whether electromagnetic fields from marine power devices affect the behavior of various aquatic animals, including fish and invertebrates. The study uses specially designed coils to create a magnetic field similar to those produced by ocean waves, tides, currents, and rivers.
A new forensic technique can identify shark species by analyzing bite patterns, helping researchers understand the behavioral underpinnings of shark attacks. The method uses measured jaw circumference and tooth distance to distinguish between species like tiger sharks and bull sharks.
Norbert Koster and colleagues have developed a way to sterilize medical tools by sealing them in vacuum bags and then using electromagnetic fields to remotely ignite plasma inside the bag, killing bacteria and viruses. This technique could replace traditional autoclave methods for certain instruments.
Researchers from UAB design a device called a dc metamaterial, making objects invisible under certain light by creating a zero magnetic field inside while keeping the exterior field intact. This innovation brings humanity closer to achieving invisibility.
Researchers develop a mathematical model for cloaking objects using metamaterials, which can bend light waves around regions to create an 'invisible' space. This technology has potential applications in secure communication, medical procedures, and even three-dimensional television screens.
Researchers at Harvard University have demonstrated that metal nanoparticles in a periodic array can exhibit narrower spectral widths, improving the sensitivity of detecting molecules at low concentrations. By optimizing electromagnetic interactions between particles, the method can enhance spectroscopy and biosensors.
A small study found that incubator electromagnetic fields decrease heart rate variability in newborns, a predictor of poor prognosis in adults. The researchers suggest modifying incubator design to mitigate this effect.
Researchers develop nanoparticles that can be controlled by electromagnetic pulses to release therapeutic drugs directly into tumors, a potential breakthrough in cancer treatment. The system uses heat-sensitive DNA tethers to release drugs, allowing for customizable and targeted delivery.
Recent political decisions in Europe have had a major negative impact on cancer treatment, according to Professor John Smyth. The new European CanCer Organisation (ECCO) aims to address these issues and promote the interests of cancer patients, researchers, and policymakers.
A University of Alberta research team has created a novel way to control the quantum state of an electron's spin using plasmonics principles in spintronics technology. This new technology, called spinplasmonics, may lead to revolutionary advances in computer electronics and other areas.
A recent UCSD graduate has won an award for his work on human functional brain imaging, specifically analyzing competing Bayesian approaches for source localization. His research may lead to improvements in existing algorithms used in magnetoencephalography (MEG) and electroencephalography (EEG) techniques.
Researchers have developed a method for wireless energy transfer that uses non-radiative electromagnetic fields to power devices. The technology has the potential to recharge laptops and cell phones without wires, with an object the size of a laptop able to be charged within a few meters of a power source.
Researchers in Italy found that exposure to cell phone EMFs can cause changes in the motor cortex of the brain. The effects were transient and reversible, but further studies are needed to understand the potential risks and benefits. The study has significant implications for individuals with conditions involving cortical excitability.
A review highlights the need for ecological consideration in renewable energy development, particularly offshore wind farms. Environmental impacts of construction, operation, and decommissioning of these projects could harm coastal species and ecosystems. However, offshore renewables also offer opportunities to enhance local biodiversity.
Researchers at the University of Pittsburgh have developed a new microscopy technique that allows them to observe electrons moving through a nanostructured silver film. This breakthrough could lead to more efficient semiconductors and reduce heat dissipation, making electronic devices faster and more powerful.
The MIT 'Weird Fields' contest utilizes creative visuals to help students grasp abstract electromagnetism concepts. By exploring vector fields through interactive software, students can better comprehend the physics behind electromagnetic forces.
A new study found that exposure to low-level magnetic fields can cause significant DNA damage and increase cell apoptosis in rat brain cells. The cumulative effect of duration may be as damaging as intensity, suggesting a need for further research on the risks involved.
A new study links high-voltage electromagnetic fields to the production of ozone in the air surrounding animals, potentially posing a health risk. The researchers found that rats exposed to corona discharge produced significantly higher levels of ozone than those without exposure.
Scientists review state-of-the-art ground-penetrating radar methods for measuring water content in vineyard soil, offering improved precision irrigation approaches and optimizing grape crop prediction. The technology provides high-resolution information to develop uniform blocks of optimal soil properties, enhancing overall wine quality.
Researchers at Ohio State University have created a new method for shaping metal using magnetism, eliminating the need for industrial lubricants. The 'bump forming' technique increases the depth of metal parts by up to 47% while reducing production costs and environmental impact.
Researchers found that death rates from brain cancer were close to expected levels for the general population, with no increased risk of lifetime or recent exposure. Socioeconomic factors played a role in increasing premature death risk, but not brain cancer risk.
Research suggests that prolonged exposure to low-frequency electromagnetic fields may increase the risk of suicide. The study found a significant association between electromagnetic field exposure and death from suicide, particularly among those with high levels of exposure.