Articles tagged with Applied Physics
A new study suggests that vertebrate jaws evolved relatively early, around 420 million years ago, and that the diversity of feeding mechanisms in these early animals had little impact on jawless fishes. The researchers used physics and engineering concepts to analyze the potential feeding functions of early vertebrate jaw designs.
New research predicts that UK winters will become colder due to low solar activity, with a 10% chance of returning to Maunder minimum conditions within 50 years. This could lead to an average winter temperature below 2.5°C, with implications for national infrastructure planning.
Researchers have developed a new, non-invasive breath test to detect vitamin B12 deficiency, a growing public health problem. The test measures the amount of carbon dioxide exhaled after administering propionate, which is broken down by vitamin B12 in the body.
A new study published in Environmental Research Letters found that virtual water transfers are unlikely to equalize water use among nations due to existing inequalities. The researchers concluded that the current amount of virtual water is insufficient to overcome these constraints.
A team of French researchers has discovered a method to double the areal density of information by stacking magnetic media in a three-dimensional tower structure. This innovative approach enables greater data storage capacity, overcoming physical limits imposed by current technology.
Applied physicists found that migrating tissues exhibit similar behavior to colloidal glass, with cells flowing like a liquid until they reach a certain density threshold. This finding has significant implications for biological processes, including wound healing, cancer metastasis, and embryonic development.
Researchers developed a method to generate spin current in graphene using ferromagnetic proximity effect and adiabatic quantum pumping. This breakthrough could lead to faster and more versatile electronics, replacing traditional devices one day.
Researchers at Rensselaer Polytechnic Institute developed a technique to probe the temperature rise in the vicinity of RF-actuated nanoparticles. The study found that the measured temperature rise was consistent regardless of whether the sensors were mixed with or covalently bonded to the nanoparticles.
University of Maryland researchers developed a scheme to detect concealed radioactive material without searching containers one by one. The concept uses gamma-ray emission from the material ionizing the surrounding air, facilitated by high-power, coherent terahertz or infrared radiation.
A study on single-molecule magnets may lead to breakthroughs in molecular spintronics, a field combining electronics with spin manipulation. Researchers have better understood the inner level structure of these tiny magnets, which could enable practical applications for quantum computation and information storage.
A group led by Takhee Lee demonstrated an optimal combination of materials and processing for a resistive memory circuit design. The scientists showed that exposing the contacts to an oxygen plasma improved the on/off signal ratio more than 10-fold, enabling high-performance memory devices.
Researchers have successfully made tiny high-frequency capacitors using a complex mineral, paving the way for high-frequency microwave applications. The capacitors, made from barium strontium titanate, exhibited excellent microwave properties up to 40 GHz.
Researchers used transmission electron microscopy to study the effects of increasing hydrogen concentrations on iron metal catalysts. They found that too much hydrogen causes fibers with thick walls, instead of nanotubes, or no growth at all.
Researchers have developed tiny devices that convert waste heat into electricity using pyroelectric nanowires. The devices can generate an electrical current in response to temperature changes, offering a potential solution for powering small devices and biological applications.
Scientists have made significant progress toward creating ultra-high-density storage devices capable of storing more than 6,000 Terabits of data on a single disc. Using laser-assisted ultrafast magnetization reversal dynamics, researchers achieved sub-nanosecond recording times.
Researchers at the University of Sheffield discovered that certain doped-oxide ceramics exhibit non-Ohmic behavior, with electrical resistance changing in response to voltage. The effect is consistent regardless of temperature or atmosphere, but time and final-state resistance are temperature-dependent.
Chinese scientists have developed a new cell design that uses an electric field to flip magnetization, resulting in faster and more energy-efficient magnetic memories. The design offers great potential for data storage and logic gates with ultra-low power consumption.
Scientists have developed a novel method for creating atmospheric pressure plasma jets using grounded electrodes, which differ from conventional applications. This breakthrough increases operator safety and enables the creation of jets at lower voltages, opening up new possibilities for biomedical applications.
Thin films of europium titanate become both ferroelectric and ferromagnetic when stretched across a substrate, displaying electrical properties 1,000 times better than existing materials. This breakthrough could lead to the development of next-generation memory storage, magnetic sensors, and highly tunable microwave devices.
Scientists at Tohoku University have recorded data at a world-record density of 4 trillion bits per square inch using the ferroelectric data storage method. This density is eight times that of today's most advanced magnetic hard-disk drives.
A team of Hong Kong researchers has demonstrated that burying a layer of silver nanoparticles improves the performance of organic electronic devices. The finding is significant as it suggests a simple and cost-effective way to enhance transistor performance.
Researchers design and characterize a field-switchable nanomagnetic atom mirror, which can manipulate atoms by applying magnetic fields. The technology could be applied to devices that trap and confine atoms, potentially leading to breakthroughs in quantum computing.
Researchers at Taiwan's National Chiao Tung University have made a discovery that opens the door to building electronic components like diodes on various substrates, including plastic, paper, and fabric. They developed a new method to improve the rectification efficiency of oxide diodes by forming nanoscale current paths in oxides.
Researchers propose a mechanism for reducing 'roughening' in pSiCOH materials etched in fluorocarbon plasmas. The findings could help overcome scaling challenges in integrated circuit manufacturing.
Researchers at the Wuhan Institute of Physics and Mathematics have made a breakthrough in developing diamond nitrogen vacancy materials for room-temperature quantum computing. The team's discovery could lead to significant advances in condensed matter physics, quantum information science, and diamond making technology.
Researchers have discovered a diamond-like material BC5 with exceptional hardness and resistance to fracture, as well as superconducting properties. The material's unique structure and properties make it suitable for designing new superconducting nano-electromechanical systems and high-pressure devices.
Scientists have developed a stable, rewritable memory device that exploits liquid crystal properties to store and erase data. The device uses anchoring transition and is bi-stable, retaining its orientation without needing power.
A new technique enables large-scale production of high-quality graphene at room temperature using a molecular wedge, resulting in undamaged graphene dispersed in water. The researchers used the graphene to build chemical sensors and ultracapacitors with high-performance applications in environmental sensing and energy storage.
Plant leaves can be studied using ultrasound in a quick and simple way, revealing properties such as thickness, density, and water content. This method allows for non-contact analysis of leaves, which is useful for diagnosing agricultural and natural systems.
A new system identifies common patterns in song versions, allowing for the analysis of musical similarities and potential applications in various fields. The technique, appearing in New Journal of Physics, uses mathematical equations to quantify cross recurrences between two songs.
The NOAA Integrated Ocean Observing System has awarded a $1.9 million grant to the University of Washington's Applied Physics Laboratory to develop ocean observing systems in the Pacific Northwest. The project will enhance data access and inform decision-making on safety, economy, and environmental protection.
Researchers at Yale University have successfully created a rudimentary solid-state quantum processor, performing simple algorithms like a search and demonstrating quantum information processing with a solid-state device for the first time. The team's achievement marks a significant step towards building a practical quantum computer.
A systematic review of carbon nanotubes' cytotoxicity found that various factors affect CNTs' toxicity, including species, impurities, lengths, and assaying methods. The study emphasizes the need for more complete characterization and determination of cell viability to ensure safe application of CNTs.
Researchers have developed a transparent resistive random access memory (TRRAM) chip, enabling see-through electronic systems. The technology may drive new directions in electronics, allowing for more compact devices and cheaper manufacturing.
Scientists at Rensselaer Polytechnic Institute developed a method to detect magnetic behaviors of nanomaterials using single carbon nanotubes. This breakthrough could lead to advancements in spintronics, digital storage devices, and selective drug delivery components.
Scientists at the University of Granada have developed a new condensed TLM node to model meta-materials, allowing for the creation of structures that can hide objects in conditions difficultly reachable with commercial software. This breakthrough uses a combination of electromagnetic parameters and judicious frame design to improve hid...
Researchers have developed a cubic-meter-scale antineutrino detector that can quickly and precisely monitor the operational status and thermal power of nuclear reactors over hour-to-month-time scales. This new tool provides a direct measurement of reactor performance, enabling nonproliferation efforts by detecting fissile material inve...
Dennis J. McGillicuddy, Jr., a pioneer in physical-biological interactions, is recognized for his groundbreaking studies of plankton and ocean currents. His research has significantly impacted the global carbon cycle and marine ecosystem productivity.
Robert McLachlan, a Professor of Applied Mathematics at Massey University in New Zealand, received the Germund Dahlquist Prize for his original contributions to geometric integration. His work has applications in physics, computer science, and engineering, and he has used geometric integration methods to study complex systems.
Dr. Andrew Stuart was awarded the 2007 SIAM Activity Group on Dynamical Systems J.D. Crawford Prize for his work on stochastic differential equations and their applications in physical models and Kalman-Bucy filters. The prize recognizes his outstanding contributions to the fields of stochastic ordinary and partial differential equations.
The Sloan Foundation has honored three young scientists at Yale with two-year Research Fellowships for their outstanding contributions to physics, computer science, and neuroscience. The fellows will receive $45,000 awards to pursue their research interests without restrictions.
Researchers at UC Riverside developed a new technique using Atomic Force Microscopy to study brain proteins and measure bonding between single molecule molecules. This breakthrough allows for the rapid detection of neurotoxins with extremely small sample sizes.
Researchers found that barium copper silicate transforms from a nonmagnetic, disordered insulator to a magnetic, ordered condensate under extreme cold and high magnetic fields. The material loses dimensionality at the quantum critical point, with electron spins interacting only in two dimensions.
A small team of researchers from Johns Hopkins University Applied Physics Laboratory developed a novel radiator using MicroElectroMechanical Systems (MEMS) technology, which can regulate the temperature of a satellite or one of its instruments. The device is designed to control emissivity and maintain constant temperatures in space.
The APL contributed significantly to the success of the Flight Test Mission (FTM) 04-2, a live event that verified the Aegis BMD 3.0 weapon system's performance against a more difficult threat.
The MRSEC research program will focus on oxide materials and their interfaces, exploring new electronic, magnetic, and chemical behavior. The Center aims to increase diversity in STEM fields and provide educational opportunities for students of all levels.
British scientists have developed a new method of coating metals using sol-gel technology, which offers improved corrosion resistance and reduced costs. The technique uses nanoparticles to form a gel-like layer on the metal's surface, providing a safer alternative to traditional chrome electroplating.
Researchers have developed diamond-like carbon coatings for medical implants, reducing friction and corrosion while providing biocompatibility. The new method of coating plastics, metals, and collagen enables the production of harder-wearing implants and enhances patient outcomes.
Scientists create ceramic nanospheres to fill fluid-filled channels in teeth, reducing sharp pain. The novel approach has the potential to be a game-changer for treating dental hypersensitivity.
Researchers have developed a paper battery that harnesses the power of urine to test for diseases, providing a cheap and efficient solution for healthcare diagnostics. The device can be integrated into biochip systems, enabling people to monitor their health at home without relying on external power sources.
Researchers have developed artificial sensory hair systems inspired by crickets' cerci, which can detect low-frequency sound with high sensitivity and directivity. The artificial hairs are energy-efficient and show potential applications in various fields such as sensor networks and aerodynamics.
The New Horizons spacecraft has been shipped from the Johns Hopkins University Applied Physics Laboratory to NASA's Goddard Space Flight Center for pre-launch tests. Engineers have tested the probe's structural integrity using a vibration test lab, simulating the energetic ride it would encounter during liftoff.
The photoelectric effect, first explained by Einstein in 1905, has become a crucial tool for understanding the properties of matter. The new issue of New Journal of Physics features research on hot electrons and high-temperature superconductors, demonstrating its relevance to tailored electronic materials.
Recent studies of the cosmic microwave background radiation suggest that small black holes were widespread in the early universe and merged to form larger black holes. This finding could indicate an era in which small black holes were commonplace, with potential telltale evidence in galaxies without a central supermassive black hole.
According to Professor Andrew Hamilton, the core of a black hole is not a singular point of infinite density but rather a hot, dense plasma that siphons matter into itself. This plasma could be the cause of a space traveller's demise in larger black holes.
Termite guts have been found to convert cellulose into ethanol, a potential solution for the world's energy supply and storage problems. Chu believes that biology can be used as a solution to pressing environmental issues.
Researchers have isolated embryo-quality stem cells from adult blood for the first time using a physical characteristic of each cell's stretchiness. This breakthrough technique could revolutionize medical research and treatment by providing an alternative to embryonic stem cells.
Researchers create a new mathematical model that explains the relationship between friction and motion, suggesting that traditional braking methods may not be the most effective. The findings could lead to improved road safety by optimizing brake performance.
Researchers found that chaos and noise are essential for maintaining marine ecosystems, allowing plankton blooms to flourish even in suboptimal conditions. By adding noise to a system, it can become synchronized and sustained, contrary to previous assumptions.
Researchers studied the plant's leaves, discovering an 'active snap-buckling instability' that controls rapid closure. The study reveals key mechanisms for the plant's trap-like movement, with implications for biomimetic systems and tiny artificial devices.