Articles tagged with Vibration
A team of theoretical chemists at Queen's University compared experimental and theoretical methods for interpreting the rotational-vibrational CH5+ spectra. They were able to develop a new assignment of the experimental results, reducing errors from 30 cm-1 to 2 cm-1.
Researchers at Penn State tracked the cause of a loud noise made by a type of golf club and found it was due to vibrations in the club head. The vibrations were strongest in the most sensitive range of human hearing, leading to an annoyingly loud sound that some players compared to a cookie tray hitting a car.
Researchers found that male peacocks vibrate their feathers at resonance, which enhances the vibrational amplitude and suggests energetically efficient displays. The iridescent eyespots stay stationary during displays due to locked barbs, keeping them in place as loose barbs shimmer in the background.
Researchers used a sophisticated computer model to show that vibrations generated by large slides can cause tons of rock to flow like a fluid, enabling it to rumble across vast distances. The study found that the vibrational waves reduce the effect of friction acting on the slide, enabling it to travel further than smaller slides.
Researchers at UCSB have cataloged patterns of vibration in the skin of the entire hand for the first time, enabling a greater understanding of how we sense the world through touch. These vibrations, which travel beyond the tips of the fingers, provide rich tactile information that helps us identify and navigate our surroundings.
Physicists at NIST developed a method to calibrate temperature measurements using nanomechanical systems governed by quantum mechanics. The approach observes object vibrations and subtle zero-point motion, enabling precise thermal energy determination.
A University of Alberta study uses gentle vibrations to identify structural changes in the spine, altering its vibration response significantly. The findings show the viability of vibration as a diagnostic tool to improve MRI utilization and potentially diagnose new conditions.
Scientists discovered that surface vibrations in nanomaterials significantly affect their behavior, impacting applications such as solar cells. The researchers found that suppressing these vibrations can lead to higher photocurrent and efficiency in solar cells.
Researchers used low-frequency Raman spectroscopy to decipher stacking patterns in 2D materials, revealing unique effects of vibrations between layers. The study provides a platform for engineering materials with optical and electronic properties strongly dependent on stacking configurations.
HRL Laboratories developed an active variable stiffness vibration isolator capable of 100x stiffness changes and millisecond actuation times. This innovation solves long-standing challenges in shock and vibration problems for next-generation transportation platforms.
Researchers at Queen's University developed ReFlex, the world's first full-color wireless flexible smartphone, combining multitouch with haptic bend input. Users can experience tactile feedback and physical sensations while interacting with apps through bend gestures.
Researchers identify ADGRE2 gene mutation responsible for vibratory urticaria, a rare inherited disorder causing hives and allergic symptoms upon vibration. The study reveals a key role of the mast cell response to physical stimuli in disease development, offering new insights into immune system functions.
Scientists at Ohio State University develop tree-like structures that can convert random forces into strong structural vibrations ideal for generating electricity. The technology may prove valuable in small-scale situations where other renewable energy sources are not an option, powering sensors that monitor infrastructure health.
Researchers investigated magnetism's influence on atomic vibrations in iron-pnictide superconductors, finding magnetic fluctuations play a crucial role. The study provides insight into the interaction between magnetism and atomic vibrations, potentially leading to materials that superconduct close to room temperature.
Researchers at University of Vienna develop nanomechanical device that converts quantum vibrations to light, paving the way for a future quantum Internet. The device allows for connection between different quantum systems, enabling global exchange of quantum information.
Scientists at NIST create non-invasive technique to map trapped light vibrations and fine-tune resonator frequency, enabling ultrasensitive sensors and identical resonances. The focused lithium-ion-beam technique allows for high-resolution imaging without disturbing near-fields.
Scientists at EPFL show how a light-induced force can push the capabilities of surface-enhanced Raman scattering (SERS) even further. They overcame limitations by amplifying molecular vibrations with light, increasing sensitivity and resolution.
A group of undergraduate researchers experimentally investigated the Himalayan singing bowl and discovered how it produces 'chatter', a rapid knocking sound. The study found that the puja's motion excites the vibration of the bowl, causing a unique deflection shape.
Researchers developed a prototype device that can remotely monitor hive activity using vibrations from bee vocalizations, allowing for real-time tracking of changes in bee behavior. The device has been tested on two UK and French colonies, detecting daily rhythms and seasonal variations in bee activity.
A device that hijacks the mating signals of Asian citrus psyllids may help provide an environmentally friendly system for preventing citrus greening, a devastating disease that has cost the Florida citrus industry billions of dollars. The researchers' vibration trap uses acoustic methods to lure male psyllids into traps, where they are...
Computer scientists at Columbia Engineering and Harvard have developed an algorithm to 3D print vibrational sounds by optimizing the shape of objects. The 'zoolophone' is a metallophone with keys in the shape of zoo animals that produces professional-sounding notes.
Researchers found that red mason bee females prefer males from their own region based on specific vibration patterns. This discovery suggests that vibrational signals carry complex information about a male's place of origin.
Scientists at EPFL and ICFO have developed a reconfigurable, highly sensitive graphene-based molecule sensor that can detect nanometric compounds. The device exploits the unique electronic and optical properties of graphene to focus light on precise spots, enabling detection of tiny molecules.
Researchers developed a graphene-based sensor that can detect nanometer-sized molecules and reveal their structure. By harnessing the unique optical and electronic properties of graphene, scientists improved upon infrared absorption spectroscopy to create a highly sensitive molecule sensor.
A new study proposes a novel nanotechnology-based strategy to enhance water diffusion through sanitation filters using phonon oscillations, resulting in three times the efficiency of water transport. Crowdsourced computing played a crucial role in this project, with over 150,000 volunteers contributing their computing power.
Porfiri's research on mechanical vibrations could lead to safer ships and ways to harvest energy from aquatic systems. His work aims to design lightweight, fuel-efficient marine vessels and microsystems with untapped energy-harvesting capabilities.
Researchers explored how wind turbines impact prairie chicken courtship, the emergence of spoken language in deaf children with cochlear implants, and the effects of noise on human cardiovascular health. These studies showcase innovative approaches to understanding animal behavior, hearing technology, and the impact of sound on our lives.
By speeding up real atomic force microscope experiments and slowing down simulations, researchers matched the sliding speeds, resolving a major problem in studying atomic-scale friction. This breakthrough enables the study of stick-slip friction at overlapping speeds, allowing for more accurate measurements.
Researchers have created a method that can identify the mass and shape of individual molecules, opening up new possibilities for biologists and biomedical applications. The technique uses vibrations in a tiny device to measure the mass-to-charge ratio and then analyzes the resulting frequencies to determine the molecule's shape.
Researchers have created a pump that moves fluid using vibration instead of a rotor, potentially capturing wasted mechanical energy and reducing noise in industrial situations. The design mimics the movement of birds' flapping wings, which manipulate airflow to move themselves.
Pablo Tarazaga, a Virginia Tech engineer, has developed a novel approach to manipulate wave propagation in solid materials, enabling the creation of smart structures with diverse capabilities. His work holds promise for improving aircraft aerodynamics performance and creating controlled fluid-structure interactions.
Researchers have developed a method to extract audio information from high-speed video recordings by detecting vibrations caused by sound waves. The technique, reported in the SPIE journal Optical Engineering, uses an image-matching process based on vibration from sound waves and can recover spoken words from videos.
Researchers cool membrane vibrations to less than 1 degree above absolute zero, opening up possibilities for novel studies of quantum physics and precision measurement devices. The technique harnesses the unique features of ultracold atomic gases, enabling fundamental quantum physics experiments with macroscopic mechanical systems.
Researchers at Imperial College London have discovered the mechanisms behind 'Mexican waves' in the brain, which play a key role in cognitive function. The study sheds light on how inhibitory neurons use different communication processes to excitatory neurons.
Scientists suggest using natural vibrations in one material to boost superconductivity in another, opening a new chapter in the quest for room temperature superconductors. The study reveals that iron selenide superconductor operates at much higher temperatures when placed atop STO material.
Researchers at Scripps Institution of Oceanography have tapped into urban seismic networks to monitor traffic patterns, count aircraft, and track larger vehicles. The study reveals that urban vibrations can serve as a new data source for cities.
A study by Rosario Signorello found that speakers with a wide range of frequency variation in their voices are more likely to be perceived as dominant. The researchers also discovered that speakers with a low fundamental rate of vocal fold vibration are perceived as more dominant than those with high F0 frequencies.
Two studies by Belgian scientists investigate thermodiffusion's impact on binary and ternary mixtures, paving the way for studying multi-component mixtures in orbit. The findings also have implications for oil reservoirs and carbon capture technologies.
Researchers at EPFL propose a feasible experiment to show entanglement in the macroscopic realm, leveraging optomechanics and nanostructures. The experiment involves converting light into mechanical vibrations, which exhibit entangled behavior.
Researchers successfully measured the vibrational motion of a single molecule for the first time, showing distinct behavior from larger molecular groups. This achievement demonstrates ultrafast spectroscopy at the single-molecule level, enabling new possibilities for quantum computing and single-molecule photonics.
Researchers at University of Chicago developed a new technique to map microscopic environments using molecular vibrations, combining microscopy with two-dimensional infrared spectroscopy. This technique offers data on vibrational dynamics that traditional microscopy lacks, while adding spatial information.
Researchers developed an algorithm to reconstruct audio signals from minute object vibrations captured in video. They successfully extracted intelligible speech from a potato-chip bag and useful audio signals from other objects like aluminum foil and leaves.
The new NIST technique uses broadband, coherent anti-Stokes Raman scattering (BCARS) to create high-resolution images of biological specimens. It achieves signals that are 10,000 times stronger than spontaneous Raman scattering and 100 times stronger than comparable coherent Raman instruments.
Researchers discovered that male radio performers have faster and more forceful vocal fold closures than non-broadcasters. This may be due to better control of vocal tension while speaking. The study used high-speed videoendoscopy to examine the vocal folds of healthy performers.
Rice University scientists discovered that stretching carbyne by just 3% opens a band gap, enabling semiconducting properties. This finding could revolutionize mechanically activated nanoscale electronics and optics.
Chemists have made a breakthrough in visualizing hydrogen bond interactions, which play a key role in biological molecules and pharmaceuticals. Using two-dimensional infrared spectroscopy techniques, researchers directly observed the coordinated vibrations between hydrogen-bonded molecules.
Astronomers have developed a method to distinguish between infant and adolescent stars based on their sound waves, with 'young' stars vibrating slower. This technique uses ultrasound technology similar to medical applications, offering new insights into star formation and evolution.
Researchers found that plants produce more defensive chemicals when exposed to caterpillar feeding vibrations, repelling future attacks. The plants distinguished between feeding vibrations and other environmental sources, highlighting their ability to detect insect threats.
Researchers developed wearable gloves that use passive haptic learning to teach Braille, even with distraction. Participants who felt vibrations during a game were a third more accurate in typing the phrase, while those who only heard audio cues were surprisingly similar.
Researchers found that spider silk can be tuned to a wide range of harmonics, allowing spiders to detect vibrations from prey and mates. This unique property could inspire new technologies such as tiny sensors.
Researchers found that whole-body vibration exercise can reduce pain symptoms and improve aspects of quality of life for individuals with fibromyalgia. The study suggests that this type of exercise may be a promising therapeutic mode of treatment.
Researchers at EPFL used lasers to study how specific vibrations in a water molecule affect its ability to dissociate, enabling the optimization of theoretical models for water dissociation. This breakthrough can impact the design of future catalysts for industrial and commercial chemical reactions.
The National Institute of Standards and Technology (NIST) has launched NIST-F2, an atomic clock that is three times more accurate than its predecessor, NIST-F1. The new clock will help improve technology innovations in fields like cellular telephones, GPS satellite receivers, and the electric power grid.
Researchers found that low-intensity vibration can accelerate wound healing in mice with diabetes by forming more granulation tissue and new blood vessels. The study suggests that this non-invasive technique could be easily translated to humans and is being tested in human trials.
Researchers at Fraunhofer LBF have created a new vibration control table that combines sensors and actuators in an integrated platform. This design allows for better protection against vibrations, particularly at lower frequencies, while maintaining performance and cost-effectiveness.
Researchers at the University of Warsaw have discovered a material called molybdenum disulfide with properties similar to those of graphene. This material has an energy gap, allowing it to be switched on and off, which could lead to significant energy savings in electronic devices.
Chemists at the University of Utah discovered a method to predict chemical reactions using bond vibrations, which can lead to more efficient catalysts for medicines, industrial products, and new materials. The researchers used infrared spectroscopy to analyze bond vibrations and built a mathematical model to predict reaction outcomes.
Scientists at Empa have developed a material that can adapt its vibration properties electronically, allowing for the precise control of wave propagation. This breakthrough enables the creation of mechanical components with freely programmable properties, revolutionizing fields like mechanical engineering and plant construction.
Researchers have developed a nanogenerator that can harness and convert vibration energy from surfaces like car seats into power for smartphones. The device uses piezoelectric materials to generate electricity from mechanical forces, enabling self-charged personal electronics.
A recent study published in Science has discovered that vibrations can influence the circadian clock of a fruit fly, with exposure to 12-hour cycles of vibration and silence synchronising the fly's internal clock and corresponding daily locomotor activity.