Articles tagged with Vibration
Researchers at Pohang University of Science & Technology developed a skin-attachable vibration sensor for accurate voice recognition. The sensor can quantify voice pressure and recognize speech without ambient noise or sound distortion.
Scientists at Tokyo Institute of Technology investigated photogenerated coherent phonons in GaAs using ultrafast dual pump-probe laser for quantum interferometry. They found that impulsive stimulated Raman scattering (ISRS) dominates phonon generation, with ISRS causing zapping of vibrations in the solid lattice.
Physicists at NIST have demonstrated a compact, high-stability chip-scale atomic clock using rubidium atoms and frequency combs. The clock requires minimal power and has the potential to replace traditional oscillators in navigation systems and telecommunications networks.
Researchers at Aalto University have discovered a surprising phenomenon where heavy particles move towards the regions with more vibrations, or antinodes, dubbed "inverse Chladni patterns", allowing for predictable motion control and potential applications in pharmaceutical research and microsystem assembly.
Researchers propose a new type of sensor based on exceptional surfaces, which exhibit enhanced sensitivity but also fragile behavior. The proposed system alleviates most experimental uncertainty problems, making it more reliable for detecting small nano-particles and single molecules.
Researchers at Umeå University found that snoring can cause swallowing dysfunction and lead to obstructive sleep apnea due to vibratory damage. The study also showed that muscle fibers in the soft palate lacked or had disturbed structural proteins, hindering healing processes.
Researchers at University of California, Irvine, have produced the first images of a molecule's normal modes of vibration using light focused down to an atom's size. This breakthrough enables direct visualization of individual atoms vibrating within a molecule.
A team of researchers found that people differ substantially in how they perceive roughness, with different relationships between skin vibrations, friction, and grain size. The study aims to understand individual differences in tactile sensation and develop an estimation model for perceptual roughness ratings.
Researchers at Saarland University have developed motorless pumps and self-regulating valves made from ultrathin electroactive silicone film. These devices can continuously vary flow rates or regulate performance, and indicate blockages in real-time. The technology offers significant energy efficiency gains over conventional components.
Neuroscientists discover vibrations perceived as noise pollution similar to sound processing; Pacinian corpuscles identified as key receptor. Researchers propose ancient sensory channel as potential precursor of hearing system.
Researchers discovered a 'snapping organ' in planthopper bugs that enables them to produce fast, rhythmic motions of their abdomen to attract mates. The mechanism involves the release of stored elastic energy, allowing the bugs to communicate effectively despite their small size.
Researchers at Argonne National Laboratory have developed a unique, tiny resonator that can produce a spectrum of evenly spaced frequencies in response to a single signal. This innovation could lead to more complex electronic devices and applications in biology and other fields.
Researchers have created a technique to quickly measure protein vibrations, enabling faster analysis of proteins' microscopic movements. This breakthrough could lead to more efficient biological research and the development of new biotechnologies.
A device called VibeForward reduces symptoms of freezing of gait in patients with Parkinson's disease by providing vibration therapy through a portable, non-invasive shoe. The technology has shown early evidence to help improve daily life for those with the condition.
Physicists at NIST have cooled a flat crystal of 150 beryllium ions to near-ground state, enabling more realistic quantum simulations and improved sensitivity for sensing weak electric fields and detecting dark matter. This achievement marks a significant advance over previous demonstrations of ion cooling.
Researchers found that acacia ants can sense vibrations caused by mammalian browsers and respond accordingly. The ants patrol the branches more actively when they detect these vibrations, allowing them to navigate towards the source of the threat and defend their tree.
The Earth's magnetic shield exhibits drum-like vibrations in response to strong impulses, as observed through NASA THEMIS satellite data. These findings have implications for understanding space weather and its potential effects on technology like power grids and GPS.
Astronomers at the University of California, Riverside, have created a workshop that converts astronomical phenomena into vibrations for students with hearing loss. The workshop uses storytelling, videos, and images to bring meaning to the sounds of the universe, making it an engaging experience for deaf students.
Molecular vibrations in aspirin cause electron motions visible in real time for the first time through x-ray experiments. Electron distributions shift by 10,000 times larger than atomic displacements, demonstrating hybrid modes in crystal structures.
Scientists developed a new MEMS energy harvester with separate chips, allowing for more flexibility in design. This enables the use of mechanical vibrations to power tiny devices, crucial for future IoT applications.
A Polish-German team of physicists has described the dynamic phenomena occurring at the interface between a ferromagnetic metal and a semiconductor, filling the 'thermal' gap in material knowledge. The study used computational models to simulate atomic vibrations and showed that the interface exhibits unique patterns.
A study published in PLOS ONE found that Indian peafowl crests efficiently sense motion and vibration at frequencies similar to those used during social displays. The research suggests that sensory stimulation of the crest feathers may complement visual and auditory perception of these displays.
Researchers at Case Western Reserve University are developing a new system that uses changes in vibrations, sound, and electrical fields to improve energy consumption and monitor occupants' movements. The system has the potential to provide energy savings, track structural integrity, and enhance building safety.
Researchers developed an OCT-based imaging tool to visualize how sound-induced vibrations travel through the ear. The technology provides new insight into hearing and could inform diagnosis and treatment of hearing problems. The instrument measures tiny vibrations within the ear, allowing for precise measurements at over 10,000 points.
Researchers at Carnegie Mellon University developed two approaches to improve smart devices' understanding of their environment: Ubicoustics, which uses microphone-based sound recognition, and Vibrosight, a vibration-detection system using laser vibrometry. These methods enhance context-aware computing capabilities.
Scientists from the University of Surrey developed a material that combines high stiffness with damping capabilities, allowing it to absorb vibrations. This innovative material could transform the car manufacturing industry, enabling customers to experience little to no vibration during their travels.
Researchers found that male mosquitoes amplify female wingbeats using a phantom tone, creating an auditory illusion that helps them locate mates. The study's findings could lead to the development of acoustic lures for controlling disease-carrying mosquito populations.
A team of researchers at Ulsan National Institute of Science and Technology has developed ultrathin, transparent, and conductive hybrid nanomembranes for skin-attachable loudspeakers and microphones. These wearable devices can produce sounds and detect vocal vibrations, opening up potential applications in sound input/output devices.
Researchers at the University of Edinburgh discovered that tiny vibrations can be used to heat small amounts of liquid, potentially improving systems that prevent ice build-up on aeroplanes and wind turbines. The findings could also lead to more efficient drying of clothes in appliances.
Researchers at the University of Cincinnati studied wolf spiders' color vision, finding they are sensitive to green light but don't have a favorite color. Their eyes adapt to changing seasons, allowing them to see contrast against colored backgrounds.
Scientists can now study the Sun's complex motions using sound waves captured by NASA and ESA. This sonification technique provides a unique probe into the star's inner workings, revealing huge rivers of solar material flowing around its core.
Researchers at University of Innsbruck investigate proton exchange reaction using laser-induced vibration excitation. They find that the laser does not enhance the reaction, but rather amplifies a competing reaction process, highlighting the importance of controlling molecular interactions in chemical reactions.
New research found that natural car vibrations cause sleepiness in drivers within 15 minutes, impacting cognitive performance. The study suggests incorporating features to disrupt vibration-induced drowsiness in future car seat designs.
An international team has cataloged around 200 solar prominence oscillations detected in the first half of 2014. The analysis revealed that almost half of these events have been of large-amplitude, with speeds between 10 km/s and 100 km/s.
A team of researchers has found a way to couple and precisely control quantum systems using phonons, the smallest units of sound waves. This allows for the creation of a scalable quantum network, enabling new technological breakthroughs.
Researchers have developed a new route to molecular modelling using photonic quantum technologies, which could lead to more efficient pharmaceutical developments. The method simulates the motion of atoms within molecules at the quantum level, allowing for a frame-by-frame reconstruction of atomic motions to create a virtual movie.
Researchers have developed a method to simulate molecular motion using a photonic chip, allowing for the creation of virtual movies of molecular dynamics. This technology has the potential to improve the accuracy of molecular models and aid in the development of new pharmaceuticals.
Harvard researchers engineered diamond strings that can quiet a qubit's environment and improve memory from tens to several hundred nanoseconds, enough time for many operations on a quantum chip. This breakthrough could serve as the backbone of a future quantum internet.
By doping aluminum oxide with neodymium, researchers can control phonon frequencies and speeds, leading to improved thermal conductivity and efficiency in thermoelectric devices. This breakthrough provides a simpler and cheaper way to tune material properties, enabling new applications in solid-state lighting and electronics.
A team of researchers has successfully created a microscopic drum that can simultaneously vibrate and stand still, a phenomenon known as quantum superposition. This breakthrough is expected to enable the development of ultra-precise sensors and new types of transducers.
Researchers monitoring natural rock arch vibrations found daily changes can predict potential collapse. The study uses resonance frequencies to forecast an arch's stability, with results suggesting no imminent failure.
Scientists investigate vibration energy of a single molecule on a surface, measuring the current generated by applying voltage between a probe tip and the surface. The study uses a classical model to reproduce experimental results, shedding light on interaction between molecules and surfaces.
Researchers have found that seismology equipment can be used to detect and classify elephant behaviors, such as panic running, through ground vibrations. This technology has the potential to develop a new kind of alarm system to catch and deter poachers.
Researchers have discovered that atomic vibrations can modulate the macroscopic electric polarization of ferroelectric materials. The study uses ultrafast x-ray diffraction to track charge dynamics and link them to macroscopic properties, paving the way for high-speed electronics.
A new study published in NeuroRegulation found that smartphone overuse is associated with higher levels of loneliness, anxiety and depression. The study suggests strategies such as turning off push notifications, scheduling focused work periods and engaging in face-to-face interactions to combat digital addiction.
The new 3D printed metamaterials, developed by researchers at the University of Southern California, can block sound waves and mechanical vibrations remotely using a magnetic field. They have the potential to be used for noise cancellation, vibration control, and sonic cloaking.
Researchers discovered that proteins use vibrations to direct energy across pigments in plants, allowing for efficient energy transfer. This discovery could help design better solar materials and is a classical mechanism rather than quantum effects.
Researchers at the University of Nottingham are developing a new neonatal transport system to reduce vibration and stress on premature babies. The system aims to improve neurological outcomes and long-term quality of life for these vulnerable infants.
The Sandia transport triathlon tested the safe transportation of spent nuclear fuel by combining data from three modes of transportation: truck, ship, and train. The test yielded valuable insights into the stresses experienced by fuel rods during routine handling and transportation.
The study analyzed the influence of belt structure on tire vibration and noise, revealing that optimized belt structures can reduce vibration noise by 7.55 dB. The findings provide a theoretical basis for developing low-noise tires in the future.
Clemson University researcher Suyi Li is investigating how origami can be used to create new materials, including floor pads and building foundations that absorb vibrations in earthquakes. His work could lead to the development of new technologies with a range of applications.
A recent study published in Behavioral Ecology and Sociobiology found that bigger honeybee colonies have quieter combs than smaller ones. Bees actively reduce vibrations by grasping the comb, possibly through their posture, which helps them communicate with each other.
Researchers at Duke University discovered that moving the eyes triggers vibrations in the eardrums, even without sound. This finding provides new understanding of how the brain coordinates visual and auditory information.
Researchers develop ultrafast imaging method to map cell elasticity, revealing mechanical properties of cells and tissues. The technology has potential applications in cancer, pathogen-induced infection, scarring, and tissue engineering.
Researchers discovered that cuttlefish can detect low-frequency vibrations from approaching predators, allowing them to avoid capture by swimming in the same direction as the water flow. In a controlled experiment, cuttlefish were found to be aware of the disturbance and changed their skin patterns in response.
Researchers at The University of Tokyo's Institute of Industrial Science used advanced TEM to study gas dynamics and vibrational changes in simple gases at high temperatures. They found that some gases vibrated faster with increasing temperature, while others did not, highlighting the importance of chemical bonding in these processes.
Researchers from CNRS and INSA Strasbourg propose a new mechanism to explain lower-than-predicted vibrations near tracks as train speed increases. They show that a large part of energy is trapped in the heterogeneous ballast layer, leading to accelerated degradation.
Researchers developed a biomechanical model to estimate the critical crowd size at which pedestrian bridge wobbling begins, allowing for the design of safer bridges. The model takes into account nonlinear effects associated with pedestrian behavior and bridge interaction.
VibWrite integrates passcode, behavioral, and physiological characteristics to verify users, offering a low-cost security solution that resists attacks and can be deployed on any solid surface. The system has verified legitimate users with over 95% accuracy in trials and shows promise for commercialization in the near future.
Researchers have discovered a way to visualize tiny vibrational resonances using quantum dots, which could lead to the development of new sensing technologies. The technique uses light waves to drive the motion of a thin membrane, creating patterns that can be visualized through an array of quantum dots.