Articles tagged with Vibration
Researchers developed a new theoretical model explaining the spread of vibrations in disordered materials, showing that sound waves lose coherence on shorter length scales. This discovery may lead to the design of heat- and shatter-resistant glass for smartphones and tablets.
Scientists at EPFL demonstrate a state of vibration that exists simultaneously at two different times, showing entanglement between light and vibration. This finding creates a bridge between daily experience and the realm of quantum mechanics, paving the way for ultrafast quantum technologies.
Researchers from Princeton University's Scholes Group discovered quantum vibrations play a crucial role in ultrafast electron transfer reactions. The study uses ultrafast laser spectroscopy to show that vibrations provide channels for the reaction to occur, and an extra vibrational wavepacket appears in the product state.
Researchers found that the USH2A protein, produced by the Meissner corpuscle, is essential for maintaining normal touch perception. The protein helps transmit touch vibrations from the outside of the fingertip to the nerve ending inside the corpuscle.
A team of researchers has developed a unique process to produce a quantum state that is part light and part matter. This discovery provides fundamental insights for developing efficient quantum-based optical and electronic devices, as well as increasing the efficiency of nanoscale chemical reactions.
Flies sleep longer and are less responsive to light pulses during vibration, suggesting they accumulate 'sleep credit.' The ability to go to sleep improves with repeated exposure, implying habituation. Vibration-induced sleep serves vital functions and may offer insights into human sleep regulation.
The team's 'virtual ANC headphone' uses laser-based technology to eliminate the need for users to wear head/ear phones or buds. It significantly reduces ambient noise in both open and enclosed spaces, decreasing distractions and improving work/rest ease.
Researchers suggest that the mechanical properties of spike proteins can account for a strategy used by coronaviruses to trick cells into letting the viruses inside. The study found strong correlations between the rate and intensity of the spikes' vibrations and infectivity, as well as lethality rates.
Researchers at Rensselaer Polytechnic Institute developed a predictive model for an energy harvesting device that can convert mechanical vibrations into electrical energy. The model helps optimize the device to generate more power, paving the way for its potential use in wireless sensors and actuators.
Researchers create detailed models of tip links, crucial components of the inner ear, to shed light on how hearing works. The study reveals key dynamics and interactions between proteins that form tip links, providing new insights into hearing loss and balance disorders.
Physicists discovered that individual light-harvesting nanotubes with disordered molecular structures transport light energy in the same way. The result is attributed to the linkage of molecules, which averages out small differences, resulting in similar optical properties.
Researchers at KIST developed an energy harvester that can harness electric power from diverse frequencies through an automatic resonance tuning mechanism, significantly expanding the frequency range. This innovation enables a standalone power source for IoT devices and small electronics.
Researchers at Cornell University have developed a single device, VibroSense, that can track 17 types of appliances in households by detecting subtle vibrations using lasers and deep learning networks. The device showed nearly 96% accuracy in identifying activities across five houses.
Researchers at UNSW Sydney developed a new haptic device that recreates the sense of touch, enabling users to feel virtual or remote objects in a more realistic way. The device overcomes existing issues with haptic technology by introducing a novel method to recreate an effective haptic sensation via soft, miniature artificial muscles.
Researchers have demonstrated the use of elastic vibrations to manipulate the spin states of optically active color centers in SiC at room temperature. The findings show a non-trivial dependence on the spin quantization direction, enabling chiral spin-acoustic resonances and full control of spin states without external microwave fields.
Researchers at Duke University discovered that certain thermoelectric materials have low thermal conductivity due to their 'floppy' atomic vibrations at high temperatures. This understanding will help develop new and better options for technologies converting heat into electricity.
Researchers found that flower buzzing produced forces of over 50G, five times that experienced by fighter jet pilots, and suggests bees use specific types of buzzing vibrations for certain tasks. This discovery provides important insight into the pollination process and how flowers coevolved with bees.
A new study published in Science found that COVID-19 lockdowns resulted in a 50% reduction in global seismic noise levels. The research used citizen science data from over 300 seismic stations worldwide, revealing the impact of physical distancing measures on seismology.
A recent study found that COVID-19 lockdowns led to a 50% global reduction in human-caused seismic noise, with the most pronounced effects seen in densely populated areas. This 'anthropause' phenomenon has provided a unique opportunity for researchers to better distinguish between human and natural seismic noise.
Chia-Ching Lin, a graduate student at UTA, has won the Leo Beranek Student Medal for Excellence in Noise Control Engineering. His research focused on gear noise and vibration control in automotive rear axle systems.
Scientists have demonstrated a 'hammer-on' effect in crystals by switching the frequency of atomic motions with an impulsively generated electric current. The technique allows for faster playing and legato, similar to rock guitarists using the hammer-on method.
Researchers at Peter the Great Saint-Petersburg Polytechnic University discovered a new physical effect where mechanical oscillations can be excited only due to internal thermal resources. This phenomenon, called ballistic resonance, grows in amplitude over time and can resolve the Fermi-Pasta-Ulam-Tsingou paradox.
A team of scientists at New York University has found that tiny eye movements can be used as an index of humans' ability to anticipate relevant information in the environment. The study reveals a connection between eye movements and the sense of touch, with micro-saccades hindering tactile discrimination and suppressing them enhancing it.
Scientists have visualized every moment of ultrafast chemical bonding, revealing two separate stages and molecular vibrations. The breakthrough study uses femtosecond x-ray scattering to track atomic positions in real-time, improving upon previous methods.
Scientists from University of Groningen discovered that nickelates' metal state can be tuned using strain and oxygen vacancies, leading to improved conductivity. This finding may help design electronics emulating neurons and developing cognitive computing devices.
Researchers assess the stresses and health of Utah's natural rock arches by analyzing seismic vibrations, revealing the effects of erosion on their shapes. The studies provide valuable information on the mechanical properties of rocks and the dominant sculpting agents behind arch formation.
Researchers found that haptic feedback causes distraction, but this loss of focus lasts only for about one second. They recommend that smart devices should have dynamically scheduled notifications where multiple alerts are separated by at least one second.
Scientists in Singapore develop a single-atom device that can perform both energy conversion and cooling tasks, showcasing the potential of quantum mechanics in miniaturizing machines. The device uses lasers to manipulate an atom's vibrations, creating a battery-like effect that stores energy.
Researchers have accurately described the interaction energy among three water molecules for the first time. The study uses advanced spectroscopy and quantum calculations to analyze the intermolecular vibrations of water trimers.
A new sensor system developed at Saarland University uses AI and machine learning techniques to identify the exact cause of disturbances in industrial plants. The system can distinguish between useful signals and false alarms, reducing operationally disruptive and costly responses.
Researchers at UC Santa Barbara find the skin's elasticity helps process tactile information, enabling efficient data compression. This discovery may lead to new prosthetic limb designs and improved tactile sensing for robots.
The False Coral Snake has been observed displaying 10 different defensive behaviors in a laboratory setting, including dorsoventral flattening, body vibrations, and erratic movements. These behaviors may be linked to mimicry with venomous snakes or physical constraints related to body size.
The study reveals that zero-point vibrations can significantly reduce open-circuit voltage and efficiency in organic solar cells. By understanding the relationship between molecular properties and macroscopic device properties, researchers can develop novel materials to overcome these limitations.
Researchers use SLAC's X-ray laser to film iodine molecules reacting to two photons of light, capturing detailed snapshots of atomic vibrations and unexpected phenomena. The technique yields new insights into molecular behavior and fills a gap in previous methods.
Researchers propose that rocks colliding inside a fault zone during an earthquake produce high-frequency vibrations, which could help explain puzzling seismic patterns and predict quake damage. The new explanation suggests smoother faults with rounded internal structures may produce less damaging quakes.
The Penn State team aims to create a handheld device that can quickly and cheaply detect evolving viruses in the field using data science and machine learning. The device will utilize laser technology to capture vibrations on the surface of viruses, tracking minute changes to differentiate between emerging strains.
Scanning Raman picoscopy enables visualization of vibrational modes and direct construction of molecule structures. Researchers achieve Ångström-resolved imaging, correlating local vibrations with constituent groups to assemble molecules in real space.
Researchers have developed a theoretical mechanical model to study how spider orb-webs detect prey through vibrations. The model reveals that web dynamics are crucial in localizing prey, and it has potential applications for bioinspired materials.
Researchers at Samara Polytech have created mathematical models to calculate noise propagation in power plants and gas-water systems. Their software products can detect source and cause of vibration, simplifying calculations and improving equipment functioning and service life.
Researchers at City University of Hong Kong and Northwestern University have created a skin-integrated virtual reality system that can simulate touch with vibration wirelessly. The device is powered by radio frequency energy and can be controlled within a distance of one meter.
Physicists at the University of Innsbruck have discovered that mechanical vibrations in glass fibers are responsible for heating individual atoms in nanooptical traps. This finding has important consequences for applications, including improved technology and new fields of physics.
Brookhaven researchers discover a new type of vibrational motion that causes scandium fluoride crystals to buckle and shrink when heated. This phenomenon is relevant to materials used in electronics, medicine, and telecommunications, offering fresh insight into unconventional superconductors and flexible materials.
Researchers at Brown University have developed Portal-ble, an augmented reality system that turns smartphones into portals for interacting with virtual objects. The system uses infrared sensors to track hand movements and enable users to pick up, turn, stack, or drop objects.
A Japanese research team developed a virtual walking system that records a person's walk and replays it to another user, creating an illusion of walking. The system uses pre-recorded oscillating optic flow and synchronous foot vibrations to induce sensations of self-motion, walking, leg action, and telepresence.
Researchers are developing methods to solve vibration problems in mechanical systems, a common issue in aerospace and construction industries. Mathematical modeling helps prevent resonance-induced failures.
Physicists at EPFL's Institute of Physics have successfully created a single phonon in ambient conditions, allowing them to study quantum phenomena in naturally occurring materials. The breakthrough enables the creation of room-temperature ultrafast quantum technologies with potential applications in various fields.
Researchers at ICFO have successfully cooled nanomechanical resonators using electron transport, enabling the observation of quantum effects on demand. By applying a constant current of electrons through the resonator, they reduced thermal vibration fluctuations, achieving a population number of 4.6 quanta of vibration.
A new laser-based sensor called LAMBDIS effectively detects buried objects while a vehicle is in motion, overcoming the challenge of existing technologies' sensitivity to environmental vibrations. It achieved comparable results to traditional laser Doppler vibrometers in laboratory and field tests.
Researchers develop new methods to optimize vibration shock protection systems, considering uncertainty and multicriteria tasks. The approach leads to a significant advance in the theory and practice of vibration shock protection.
The HOT SHOT program has revealed a way to improve tests, providing an earlier indicator of technology success and saving taxpayer money. The analysis of sounding rocket data has produced more complete vibration pictures, used to create accurate simulations and ground tests.
A recent study published in PLOS Biology explores how texture affects the way we perceive speed when touching objects. The researchers found that finer textures produce more vibrations in the skin, leading to a greater perceived speed. This is because specific nerve fibers in the skin are highly sensitive to these vibrations.
Researchers measured the tower's vibrations using seismometers and found two primary resonance modes at frequencies of 0.8 and 1.0 hertz. The results help scientists understand how human-made vibrations affect seemingly unmovable rocks, offering a geological checkup for natural rock forms.
Researchers developed a method to measure all phonons in graphene nanostructures, opening new possibilities for material design and optimization. This breakthrough technique uses high-resolution electron spectroscopy inside an electron microscope, resolving spatial and momentum vibrations.
Developed by Stevens Institute of Technology researchers, wearable motion sensors can record vibrations sent through a mother's abdomen when her baby's heart beats or squirms. These non-invasive devices could reduce stillbirths worldwide and provide vital insights into fetal health.
Researchers at DGIST developed flexible sensors that can detect pressure and vibration similar to human skin, with more sensitive detections. The sensors mimic 'Slow Adaptive' and 'Fast Adaptive' receptors, enabling accurate classification of fabric roughness and potential applications in artificial skin grafting and VR experiences.
Researchers found a universal frequency decoding system that overrules tactile sensory channels when perceiving vibrotactile stimuli. This discovery suggests that different skin regions with varying receptors can cause the same brain sensations, revolutionizing our understanding of touch perception.
Researchers found that whole body vibration increases levels of Alistipes, a bacterium producing short chain fatty acids that decrease inflammation. This shift also improves the balance between macrophages promoting and suppressing inflammation.
Advanced MRI scans revealed differences in brain structure and function among US government personnel exposed to unusual sounds, pressure, or vibrations. The study found variations in white matter volume, gray matter regions, and functional connectivity in specific brain networks.
Researchers developed new accelerometers to measure acceleration and vibration on trains, enabling real-time monitoring of track or train problems. The sensors use polarization-maintaining photonic crystal fiber and can detect frequencies double that of traditional accelerometers.
Researchers at Georgia Institute of Technology have developed micro-bristle-bots that harness vibration to move and interact with their environment. The bots can be controlled by adjusting vibration frequencies and can potentially be used for tasks such as repairing injuries inside the human body or sensing environmental changes.