Articles tagged with Applied Physics
A Brazilian team of researchers has developed a new levitation device that can hover tiny polystyrene particles with more control than any instrument before. The device uses sound waves to reflect off a concave reflector, allowing the particle to be moved around without precise setup.
Researchers developed a new way to calculate the electrical properties of individual components in composite materials, which could improve the energy efficiency of medical refrigerators, air-conditioned car seats, and other thermoelectric applications. The technique uses effective medium theory and allows for the separation of phase p...
Researchers found that regular poor trimming can cause residual stress in nails, leading to shape changes and serious conditions. They suggest optimising nail shapes to reduce stress and promote health in both humans and animals.
Researchers propose a new method for measuring magnetic properties of materials at atomic resolution, utilizing the phase symmetry of an electron beam. This technique enhances the magnetic signal, enabling the detection of magnetism with unprecedented precision.
Single-walled carbon nanotubes (SWCNTs) show promise as a successor to silicon for smaller, faster and cheaper electronic devices. A new method improves their reliability and performance by coating them with PVDF-TrFE, a fluoropolymer that mitigates impurities and defects.
Scientists at Boston University and Stanford University School of Medicine attach E. coli colonies to a microcantilever, allowing real-time monitoring of bacterial motion and communication patterns. The new system enables rapid assessment of antibiotic susceptibility and potential applications in cancer drug development.
Researchers discovered that geckos can turn their toe hairs' stickiness on and off, allowing for speed and energy-efficient climbing. This mechanism is crucial for geckos' survival and enables potential applications in synthetic dry-adhesives for extreme environments.
Scientists have created a way to plant imperfections called 'NV centers' at specific spots within a diamond lattice, advancing quantum computing and atomic-scale measurement. The technique successfully localized NV centers within a cavity approximately 180 nanometers across.
Scientists at Yale University have successfully changed the color of butterfly wings using evolutionary principles, producing the first structural color change in an animal. The research has implications for the design of new materials and devices, and may help physicists and engineers develop more efficient designs.
Researchers used the Constructal Law to analyze airplane designs and found they follow evolutionary trends towards larger size, greater range and efficiency. The study predicts future aerospace design with surprising accuracy.
A team of researchers developed a tiny prototype device that mimics the parasitic fly's freakishly acute hearing mechanism, which may be useful for new generation of hypersensitive hearing aids. The device uses piezoelectric materials to turn mechanical strain into electric signals, minimizing power consumption.
A France-US research team reports a new multi-bit MRAM storage paradigm that can store up to 4 bits per cell, rivaling flash memory in terms of storage density. The technology uses Crocus Technology's proprietary Magnetic Logic Unit (MLU) technology to remotely control a sensor to probe magnetic configurations.
Researchers are monitoring the physics of the ice edge in the Beaufort Sea to better understand and predict open water in Arctic seas. The international effort aims to study how processes drive sea ice melt will change with increasing open water.
A team of researchers at KAIST has developed a flexible, wearable sensor that can directly measure goose bumps on the skin, which is caused by sudden changes in body temperature or emotional states. The sensor uses a coplanar capacitor and detects piloerection through a simple linear relation between deformation and capacitance change.
Researchers have developed a novel approach to magnetic cooling, utilizing solid magnetic substances as refrigerants in miniaturized magnetic refrigerators. The technology is more efficient and 'green' than traditional fluid-compression refrigeration, with potential applications in domestic and industrial settings.
Researchers have successfully scaled up molecular self-assembly from nanometers to millimeters using noncovalent interactions, enabling the creation of large-area nanostructures. This breakthrough paves the way for alternative patterning techniques in nanoelectronics and materials science.
Scientists at the University of Twente have successfully folded flat sheets of silicon nitride into complex 3D structures using a custom software program and water. The technique has potential applications in delivering drugs to targeted areas of the body or performing autonomous microsurgery.
Researchers have developed sperm-inspired microrobots that can be controlled by oscillating weak magnetic fields, enabling applications such as targeted drug delivery and in vitro fertilization. The robots consist of a head coated in a thick cobalt-nickel layer and an uncoated tail, propelled forward by magnetic torque.
Researchers created a new ultracapacitor by combining graphene flakes with single-walled carbon nanotubes, resulting in three times higher specific capacitance. The hybrid structure's low costs and small size make it suitable for portable electronics and hybrid electric vehicles.
A new study reveals a sensitive detection method that can identify small quantities of plutonium or highly enriched uranium in luggage, posing a significant threat to nuclear security. The approach combines commercially available spectral X-ray detectors with a specialized algorithm, enhancing the detection powers of X-ray imaging.
Brookhaven physicist Alexei Klimentov receives a $3.4 million mega-grant to develop new 'big data' computing tools, building on the success of his ATLAS experiment workload and data management system. The project aims to efficiently handle large-scale data distribution and processing for various scientific fields.
Researchers found a new application of physics tools in understanding epigenetic memory, which is how organisms create a biological memory of certain conditions. The study highlights the interdisciplinary nature of modern molecular biology and shows how mathematical models can help clarify complex biological problems.
Researchers used high-speed photography to study how ultrasound-stimulated microbubbles dissolve killer blood clots. The team found that the bubbles deform the clots' boundaries before burrowing into them, creating fluid-filled tunnels that break up the clots from the inside out.
Researchers found that even DOD-approved soundproof rooms can be compromised by poor design and sealing issues. To improve security, acoustic door seals and mandatory entry vestibules are proposed as remedies.
Researchers at MIT and Boston University discovered that sparsely packed textures on surfaces can hold droplets in place, enabling cooling. This breakthrough has the potential to increase cooling efficiency gains in industries such as nuclear power plants, semiconductors, and electronics.
Researchers have created a method for producing high-quality aluminum nitride (AlN) layers with atomic-scale thickness and at half the temperature of other methods. This breakthrough expands the potential for new advanced specialty materials in next-generation electronics.
Researchers create cleanest graphene by making electrical contact only along its 1D edge and using a contamination-free assembly technique. This results in improved performance, including high electron mobility and low sheet resistivity, making it suitable for electronic devices.
A novel design uses a magnetoelastic biosensor and surface-scanning coil detector to detect Salmonella on food surfaces, enabling real-time testing of food and processing plant equipment. This handheld device can be used in agricultural fields or processing plants to quickly identify contaminated surfaces.
Researchers have developed a novel plasma actuator with serpentine geometry that can manipulate fluid flows in new ways. Early results suggest this technology could improve transportation efficiencies by reducing drag, noise, and fuel costs.
Researchers developed a new photodiode that can detect the entire range of UVC light while remaining insensitive to visible light from the sun. This device is solar blind and has minimal dark current, making it useful for tracking ozone depletion and communication in space.
Researchers from Cambridge University have devised a simple technique to grow carbon nanotubes at five times higher density than previous methods, enabling the potential replacement of metal electronic components in devices such as batteries and spacecraft.
A new, environmentally-friendly electronic alloy consisting of 50 aluminum atoms bound to 50 atoms of antimony may be promising for building next-generation 'phase-change' memory devices. The material has high thermal stability and can store three bits of data in a single memory cell.
A team of researchers has designed a high-tech microplasma source that can efficiently analyze carbon isotopes in organic samples. This breakthrough device may transform field archaeology by providing new information during excavation decision-making processes.
Researchers developed a new technique to produce thin films of germanium crystals without high temperatures or other crystals as seeds. This allows for the production of large-area germanium films, opening new ways to create advanced flexible electronics.
A team of researchers at Bangor University has made significant discoveries on the behavior of polyethylene in conducting electrical charges. The study reveals that the nano-scale structure of polyethylene, with crystalline regions separated by amorphous zones, plays a crucial role in charge conduction.
A Korean team of mechanical engineers has created a novel nanoscale biosensing technique to detect uniform heat signatures from individual cells. This innovation allows for the measurement of cell viability and may lead to early diagnosis of diseases like cancer based on differences in thermal properties.
A study found that extreme rainfall in the UK is expected to shift later in the year, especially in the south-east, where it will peak in autumn. This could lead to an increased risk of flooding, particularly when river catchments are at their maximum water capacity.
Researchers have provided a mathematical formula to describe the processes that dictate how cauliflower-like patterns form and develop. The formula was derived from thin films grown using chemical vapour deposition, which successfully predicted the final cauliflower-like patterns by comparing them to actual plants.
Research finds climate scepticism prevalent in UK and US newspapers, with opinion pieces often unchallenged. The study analyzed over 2,064 articles from six countries during two periods, including the IPCC's Fourth Assessment Report, and found a significant presence of sceptical voices in these nations.
Researchers found that the spread of scores across different sports, such as volleyball and snooker, follows a similar distribution. They also discovered that this phenomenon applies to other everyday phenomena, including human wealth and population distribution, governed by power laws and the Pareto principle.
The Met Office's new 'high-top' system better warns of severe winter conditions by accounting for sudden stratospheric warmings. This improved model predicted a cold start to the 2010/11 winter, which turned out to be the second-coldest in 350 years of records.
A research team at Intel Corp. has developed a long-lasting ultrahigh-density probe storage device by coating probe tips with a thin metal film, reducing wear and increasing the device's lifetime to over 8 kilometers. The device features an array of 5,000 ultrasharp probes that write tiny bits of memory as small as a few nanometers.
A team of researchers has developed a nanomechanical device that can weigh individual molecules, enabling biologists to study viruses and probe molecular machinery. The device uses vibrational modes to determine particle mass and position, opening doors for biomedical applications such as disease diagnosis and immune system monitoring.
Researchers Paul J Steinhardt and Luca Bindi found naturally occurring quasicrystal samples in far eastern Russia, strengthening the case that they arrived on Earth from outer space. The samples were brought to the area during the last glacial period, suggesting a meteorite hit around 15,000 years ago.
A group of Japanese scientists developed a model that predicts the success of movies at the box office by analyzing daily advertisement costs and word-of-mouth communication. The model was tested with 25 movies and showed promising results in predicting actual revenue.
A growing population faces challenges of feeding itself through cleaner and more efficient methods. Innovations in flameless cooking, such as the Oorja stove, offer promising solutions. Researchers are exploring new technologies to reduce costs and increase accessibility, aiming to generate 100W of electrical power from confined gas.
A team of American researchers has created an array of 25,000 individual invisibility cloaks that can slow down or stop light, creating a trapped rainbow. This technology enables 'spectroscopy on-a-chip' for detailed analysis of biological materials.
Quantitative research reveals that microtubules form and transport throughout the spindle, contradicting the pole-to-pole theory, shedding new light on cell division mechanics.
Researchers have predicted that a thin plate can be levitated using the Casimir force in certain circumstances. The repulsive force increases as the plate gets thinner, making it easier to lift, but experimental testing is needed to confirm the models.
The Titanic's sinking was attributed to a combination of structural deficiencies and the Gulf Stream's unusual alignment, weakening the ship's hull. Researchers found that non-uniform rivet composition and insertion contributed to the vessel's vulnerability.
Researchers found that only a few Canadian weather stations showed an earlier start date for the outdoor skating season, while most stations experienced a decrease in its length over the past half century. Climate change is projected to end outdoor skating in areas like British Columbia and Southern Alberta within decades.
A team of Italian and Swedish researchers has successfully transmitted two twisted radio waves across the waters of Venice, demonstrating a solution to the problem of radio frequency congestion. By twisting radio waves into fusilli pasta shapes, they were able to transmit multiple channels of information on the same frequency band.
Astronaut Drew Feustel recounts his experiences as a spacewalker on Endeavour's final mission to the International Space Station. He emphasizes the fragility of our planet's atmosphere and the need for protection.
The team's proof-of-concept motor utilizes carbon-based switches to activate artificial muscles, which then rotate a shaft without external electronics or hard metal parts. The device has the potential to open doors for softer, lighter electrostatic motors with applications in prosthetics and soft robots.
Researchers created an organic LED light with a warm white color near point A and high color stability by adjusting layer heights. The final OLED has improved performance compared to traditional incandescent bulbs.
Researchers from the University of Manchester have discovered that commercially available graphite crystals contain micron-sized clusters of predominantly iron, which explain their weak signs of magnetism. This finding could be a breakthrough for utilising graphite as a bio-compatible magnet for medicine and biology.
A professor of physics, internationally renowned composer, and award-winning violinist create a series of classical compositions inspired by particle physics. The 'Particle Partitas' showcase the connection between subatomic particles and music, with a debut set to take place in the UK.
Researchers demonstrate longest-ever deployment of a quantum key distribution network, showing its robustness and reliability when coupled with real-time telecommunications. The SwissQuantum network ran for over 21 months, outperforming traditional encryption methods.
Researchers found an inverse correlation between mercury exposure and antioxidant status in Alaskan huskies, suggesting potential health risks for indigenous communities. The study highlights the need for monitoring and reducing mercury generation, particularly from coal-generated power plants.
EPL has published its first paper submitted from space, detailing experiments conducted on the International Space Station by German and Russian researchers. The study reports on the measurement of the speed of sound within complex plasmas under microgravity conditions, providing new insights into material properties.