//www.koonmotors.com/news/matter_energy/acoustics/ Read all the latest research on acoustics, including novel sound systems, wearable musical instruments, and information on indoor acoustics. en-us 星期四,2023年10月12日15:51:43美国东部时间 星期四,2023年10月12日15:51:43美国东部时间 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/matter_energy/acoustics/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/10/231010133604.htm Researchers describe an acoustic meta-surface that uses pingpong balls, with small holes punctured in each, as Helmholtz resonators to create inexpensive but effective low-frequency sound insulation. The coupling between two resonators led to two resonance frequencies, and more resonant frequencies meant the device was able to absorb more sound. At the success of two coupled resonators, the researchers added more, until their device resembled a square sheet of punctured pingpong balls, multiplying the number of resonant frequencies that could be absorbed. Tue, 10 Oct 2023 13:36:04 EDT //www.koonmotors.com/releases/2023/10/231010133604.htm //www.koonmotors.com/releases/2023/10/231010133534.htm A team found a way to deliver clear pictures of anyone's internal anatomy, no matter their skin tone. Tue, 10 Oct 2023 13:35:34 EDT //www.koonmotors.com/releases/2023/10/231010133534.htm //www.koonmotors.com/releases/2023/09/230921105720.htm A team has developed a shape-changing smart speaker, which uses self-deploying microphones to divide rooms into speech zones and track the positions of individual speakers. Thu, 21 Sep 2023 10:57:20 EDT //www.koonmotors.com/releases/2023/09/230921105720.htm //www.koonmotors.com/releases/2023/08/230831142850.htm 一项新技术可以同步媒体流different networks to multiple devices with less than 10 milliseconds of delay. The technique was demonstrated on cloud gaming, but could also be applied in AR/VR applications. Thu, 31 Aug 2023 14:28:50 EDT //www.koonmotors.com/releases/2023/08/230831142850.htm //www.koonmotors.com/releases/2023/08/230830195939.htm Experiencing the harsh sounds of skateboarding can help bridge the gulf between the joy and distaste of the noises created by the sport, a new study says. Wed, 30 Aug 2023 19:59:39 EDT //www.koonmotors.com/releases/2023/08/230830195939.htm //www.koonmotors.com/releases/2023/08/230822111053.htm Researchers study the impact of hearing loss on subjects' enjoyment of different music mixes. They played different music mixes to listeners with and without hearing loss and found that those with hearing loss preferred louder lead vocals, higher frequencies, and sparser mixes with fewer frequencies overall. Previous research has found that music steadily shifted to quieter vocals and louder instrumentals leading up to 1975, meaning today's music may be less accessible to those with hearing loss. Tue, 22 Aug 2023 11:10:53 EDT //www.koonmotors.com/releases/2023/08/230822111053.htm //www.koonmotors.com/releases/2023/08/230815151112.htm For those with neurological or developmental disorders compromising speech, brain machine interfaces could help them communicate. But today's interfaces are slow and, from electrodes placed on the scalp, can detect letters only. The speech generated is robotic and affectless. Neuroscientists have now shown that they can reconstruct the song a person is hearing from brain recordings alone, holding out the possibility of reconstructing not only words but the musicality of speech, which also conveys meaning. Tue, 15 Aug 2023 15:11:12 EDT //www.koonmotors.com/releases/2023/08/230815151112.htm //www.koonmotors.com/releases/2023/07/230713141937.htm Routing signals and isolating them against noise and back-reflections are essential in many practical situations in classical communication as well as in quantum processing. In a theory-experimental collaboration, a team has achieved unidirectional transport of signals in pairs of 'one-way streets'. This research opens up new possibilities for more flexible signaling devices. Thu, 13 Jul 2023 14:19:37 EDT //www.koonmotors.com/releases/2023/07/230713141937.htm //www.koonmotors.com/releases/2023/07/230711133223.htm Any sound can now be perfectly replicated by a combination of whistles, clicks, and hisses, with implications for sound processing across the media landscape. Tue, 11 Jul 2023 13:32:23 EDT //www.koonmotors.com/releases/2023/07/230711133223.htm //www.koonmotors.com/releases/2023/06/230630130152.htm A new soft robotic glove is lending a 'hand' and providing hope to piano players who have suffered a disabling stroke or other neurotrauma. Combining flexible tactile sensors, soft actuators and AI, this robotic glove is the first to 'feel' the difference between correct and incorrect versions of the same song and to combine these features into a single hand exoskeleton. Unlike prior exoskeletons, this new technology provides precise force and guidance in recovering the fine finger movements required for piano playing and other complex tasks. Fri, 30 Jun 2023 13:01:52 EDT //www.koonmotors.com/releases/2023/06/230630130152.htm //www.koonmotors.com/releases/2023/06/230627123411.htm Computer scientists have discovered a method of attack that can successfully bypass voice authentication security systems with up to a 99% success rate after only six tries. Tue, 27 Jun 2023 12:34:11 EDT //www.koonmotors.com/releases/2023/06/230627123411.htm //www.koonmotors.com/releases/2023/06/230626164313.htm Short exposure to wind farm and road traffic noise triggers a small increase in people waking from their slumber that can fragment their sleep patterns, according to new research. But importantly, the new study also shows that wind farm noise isn't more disruptive to sleep than road traffic, which was a little more disruptive at the loudest audio level but not at more common levels. Sleep researchers have studied the impact of exposure to wind farm noise during sleep in three new scientific publications to better understand its impact. Mon, 26 Jun 2023 16:43:13 EDT //www.koonmotors.com/releases/2023/06/230626164313.htm //www.koonmotors.com/releases/2023/05/230531102009.htm Scientists show that a thin layer of plasma, created by ionizing air, could be promising as an active sound absorber, with applications in noise control and room acoustics. Wed, 31 May 2023 10:20:09 EDT //www.koonmotors.com/releases/2023/05/230531102009.htm //www.koonmotors.com/releases/2023/05/230530125407.htm Acoustic source-shifters make observers mis-perceive the location of sound by reproducing a sound emanating from a location different from the actual location of a sound source. Researchers have now developed a design approach to produce high-performance source-shifters using a common polymer for location camouflage. Utilizing inverse design based on topology optimization, this development could pave the way for advanced augmented reality and holography technology. Tue, 30 May 2023 12:54:07 EDT //www.koonmotors.com/releases/2023/05/230530125407.htm //www.koonmotors.com/releases/2023/05/230524182045.htm The effects of the ground on propeller noise have now been measured experimentally. Wed, 24 May 2023 18:20:45 EDT //www.koonmotors.com/releases/2023/05/230524182045.htm //www.koonmotors.com/releases/2023/05/230508135002.htm Imagine a cocktail party full of 3D-printed, humanoid robots listening and talking to each other. That seemingly sci-fi scene is the goal of an augmented listening laboratory. With precise control over the simulated subjects, the researchers can adjust the parameters of the experiment and even set the machines in motion to simulate neck movements. Mon, 08 May 2023 13:50:02 EDT //www.koonmotors.com/releases/2023/05/230508135002.htm //www.koonmotors.com/releases/2023/05/230501164001.htm Couches, tables, sleeves and more can turn into a high-fidelity input device for computers using a new sensing system. Mon, 01 May 2023 16:40:01 EDT //www.koonmotors.com/releases/2023/05/230501164001.htm //www.koonmotors.com/releases/2023/04/230425111149.htm Scientists carried out an analysis of hundreds of popular song recordings from 1946 to 2020 to determine the lead vocal to accompaniment ratio, or LAR. The study considered the four highest-ranked songs from the Billboard Hot 100 chart for each year and the results show that, contrary to expectations, the LAR for popular music decreased over the decades in question. This means that, relative to their bands, lead singers are getting quieter. Tue, 25 Apr 2023 11:11:49 EDT //www.koonmotors.com/releases/2023/04/230425111149.htm //www.koonmotors.com/releases/2023/04/230424103343.htm Why does it feel so difficult to shout upwind? The sensation is common enough to have found its way into an idiom about not being understood. Researchers wanted a scientific explanation for the phenomenon -- and there wasn't been one. They have now shown that our common sense understanding of this situation is wrong. It isn't harder to shout into the wind; it's just harder to hear yourself. Mon, 24 Apr 2023 10:33:43 EDT //www.koonmotors.com/releases/2023/04/230424103343.htm //www.koonmotors.com/releases/2023/04/230420110146.htm Mechanically responsive molecular crystals are extremely useful in soft robotics, which requires a versatile actuation technology. Crystals driven by the photothermal effect are particularly promising for achieving high-speed actuation. However, the response (bending) observed in these crystals is usually small. Now, scientists address this issue by inducing large resonated natural vibrations in anisole crystals with UV light illumination at the natural vibration frequency of the crystal. Thu, 20 Apr 2023 11:01:46 EDT //www.koonmotors.com/releases/2023/04/230420110146.htm //www.koonmotors.com/releases/2023/04/230417142453.htm A team of engineering and health researchers has developed a tool that improves the ability of electronic devices to detect when a human patient is coughing, which has applications in health monitoring. The new tool relies on an advanced artificial intelligence (AI) algorithm that helps the AI better identify uncertainty when faced with unexpected data in real-world situations. Mon, 17 Apr 2023 14:24:53 EDT //www.koonmotors.com/releases/2023/04/230417142453.htm //www.koonmotors.com/releases/2023/04/230406114008.htm Researchers have developed a silent-speech recognition interface that uses acoustic-sensing and artificial intelligence to continuously recognize up to 31 unvocalized commands, based on lip and mouth movements. Thu, 06 Apr 2023 11:40:08 EDT //www.koonmotors.com/releases/2023/04/230406114008.htm //www.koonmotors.com/releases/2023/04/230403100313.htm Scientists are developing intelligent materials that are opening up new avenues in sound reproduction technology: lightweight loudspeakers that use far less energy than their conventional counterparts, novel shapes for sound and signal generators and applications involving noise cancelling textiles. The basis for these smart materials are ultrathin silicone films that can act as artificial muscles with their own built-in sensors. Mon, 03 Apr 2023 10:03:13 EDT //www.koonmotors.com/releases/2023/04/230403100313.htm //www.koonmotors.com/releases/2023/03/230328145536.htm Colorful particles of plastic drift along under the surface of most waterways. These barely visible microplastics -- less than 5 mm wide -- are potentially harmful to aquatic animals and plants, as well as humans. Now, a team reports a two-stage device made with steel tubes and pulsing sound waves that removes most of the plastic particles from real water samples. Tue, 28 Mar 2023 14:55:36 EDT //www.koonmotors.com/releases/2023/03/230328145536.htm //www.koonmotors.com/releases/2023/03/230327114922.htm In chemistry, we have He, Fe and Ca -- but what about do, re and mi? Using a technique called data sonification, a recent college graduate has converted the visible light given off by each of the elements into soundwaves. The notes produced for each element are unique, complex mixtures and are the first step toward an interactive, musical periodic table. Mon, 27 Mar 2023 11:49:22 EDT //www.koonmotors.com/releases/2023/03/230327114922.htm //www.koonmotors.com/releases/2023/03/230322190921.htm If you live near a busy road you might feel like the constant sound of roaring engines, honking horns and wailing sirens makes your blood pressure rise. Now a new study confirms it can do exactly that. Wed, 22 Mar 2023 19:09:21 EDT //www.koonmotors.com/releases/2023/03/230322190921.htm //www.koonmotors.com/releases/2023/03/230321112550.htm Researchers explore how anatomical variations in a speaker's vocal tract affect speech production. Using MRI, the team recorded the shape of the vocal tract for 41 speakers as the subjects produced a series of representative speech sounds. They averaged these shapes to establish a sound-independent model of the vocal tract. Then they used statistical analysis to extract the main variations between speakers. A handful of factors explained nearly 90% of the differences between speakers. Tue, 21 Mar 2023 11:25:50 EDT //www.koonmotors.com/releases/2023/03/230321112550.htm //www.koonmotors.com/releases/2023/03/230315085949.htm Electrification is seen as having an important role to play in the fossil-free aviation of tomorrow. But electric aviation is battling a trade-off dilemma: the more energy-efficient an electric aircraft is, the noisier it gets. Now, researchers have developed a propeller design optimization method that paves the way for quiet, efficient electric aviation. Wed, 15 Mar 2023 08:59:49 EDT //www.koonmotors.com/releases/2023/03/230315085949.htm //www.koonmotors.com/releases/2023/03/230314104326.htm One of the fascinating features of human hearing is its ability to localize sound. While the human ear usually does this with binaural cues, it is, in fact, possible to locate sound direction with monaural hearing alone. Now, researchers have developed a method to estimate the direction of sound signals in 3D space using monaural cues based on monaural modulation spectrum that could help simplify sound surveillance techniques and enhance hearing aid instruments. Tue, 14 Mar 2023 10:43:26 EDT //www.koonmotors.com/releases/2023/03/230314104326.htm //www.koonmotors.com/releases/2023/02/230220162948.htm 研究人员已经开发出智能wearabl第一e device to continuously track how much people use their voices, alerting them to overuse before vocal fatigue and potential injury set in. The soft, flexible, postage-stamp-sized device comfortably adheres to the upper chest to sense the subtle vibrations associated with talking and singing. From there, the captured data is instantaneously streamed via Bluetooth to the users' smartphone or tablet, so they can monitor their vocal activities in real time throughout the day and measure cumulative total vocal usage. Custom machine-learning algorithms distinguish the difference between speaking and singing, enabling singers to separately track each activity. Mon, 20 Feb 2023 16:29:48 EST //www.koonmotors.com/releases/2023/02/230220162948.htm //www.koonmotors.com/releases/2023/02/230214153924.htm When the Artemis 1 mission was launched in November, it became the world's most powerful rocket, and with liftoff came a loud roar heard miles away. Researchers report noise measurements during the launch at different locations around Kennedy Space Center. The data collected can be used to validate existing noise prediction models, which are needed to protect equipment as well as the surrounding environment and community. Tue, 14 Feb 2023 15:39:24 EST //www.koonmotors.com/releases/2023/02/230214153924.htm //www.koonmotors.com/releases/2022/12/221223103415.htm A study found that inexpensive, easy-to-assemble Corsi-Rosenthal boxes can help reduce exposure to indoor air pollutants. The air filters have already been shown to reduce particles carrying the SARS-CoV-2 virus. Fri, 23 Dec 2022 10:34:15 EST //www.koonmotors.com/releases/2022/12/221223103415.htm //www.koonmotors.com/releases/2022/12/221221121233.htm Kickstarting the brain's natural ability to adjust to new circumstances, or neuroplasticity, improves how effectively a cochlear implant can restore hearing loss, a new study in deaf rats shows. The investigation, researchers say, may help explain the extreme variation in hearing improvements experienced by implant recipients. Wed, 21 Dec 2022 12:12:33 EST //www.koonmotors.com/releases/2022/12/221221121233.htm //www.koonmotors.com/releases/2022/11/221115113924.htm Some commercial earbuds can perform as well as hearing aids. The result could help a large proportion of people with hearing loss access more affordable sound amplification devices. Tue, 15 Nov 2022 11:39:24 EST //www.koonmotors.com/releases/2022/11/221115113924.htm //www.koonmotors.com/releases/2022/11/221107114445.htm 找出音乐influen的不同方面ce the body, researchers turned a live electronic music concert into a lab study. By introducing levels of bass over speakers that were too low to hear and monitoring the crowd's movements, scientists found that people danced 11.8 percent more when the very low frequency bass was present. Mon, 07 Nov 2022 11:44:45 EST //www.koonmotors.com/releases/2022/11/221107114445.htm //www.koonmotors.com/releases/2022/11/221107103212.htm The forensic-voice-comparison system, based on state-of-the-art automatic-speaker-recognition technology, outperformed all the listeners. Mon, 07 Nov 2022 10:32:12 EST //www.koonmotors.com/releases/2022/11/221107103212.htm //www.koonmotors.com/releases/2022/11/221101124246.htm Researchers have developed a machine-learning technique that captures and models the underlying acoustics of a scene from a limited number of sound recordings. The system can accurately simulate what any sound, like a song, would sound like if a person were to walk around to different locations in a scene. Tue, 01 Nov 2022 12:42:46 EDT //www.koonmotors.com/releases/2022/11/221101124246.htm //www.koonmotors.com/releases/2022/11/221101111551.htm 当两个同时的音符,the human ear can perceive weak additional tones called combination tones. While less perceivable, objective combination tones are also generated by some musical instruments. Researchers have now used violins to explore these rarely studied objective combination tones. They found that the combination tones produced by higher-quality violins were much stronger and clearly audible and powerful air resonance and violin sound quality are linked. The higher-quality violins produced a stronger air resonance due to several factors, including structural material and crafting techniques. Tue, 01 Nov 2022 11:15:51 EDT //www.koonmotors.com/releases/2022/11/221101111551.htm //www.koonmotors.com/releases/2022/10/221031124622.htm Researchers have created a newborn hearing screening system that uses cheap earbuds and a smartphone instead of an expensive commercial device. Mon, 31 Oct 2022 12:46:22 EDT //www.koonmotors.com/releases/2022/10/221031124622.htm //www.koonmotors.com/releases/2022/10/221018131149.htm A research team has developed a skin-attachable auditory sensor, which recognizes human voices in noisy environments and when users wear facemasks. The new sensor will be useful in microphones that facilitate communication in disaster situations and for healthcare devices that diagnose respiratory diseases. Tue, 18 Oct 2022 13:11:49 EDT //www.koonmotors.com/releases/2022/10/221018131149.htm //www.koonmotors.com/releases/2022/10/221012103158.htm Study shows that not only are loud vehicles flying overhead a cause of noise pollution-related stress, the effect of that stress remains on the body even after noise levels have decreased. Wed, 12 Oct 2022 10:31:58 EDT //www.koonmotors.com/releases/2022/10/221012103158.htm //www.koonmotors.com/releases/2022/10/221007112053.htm Jazz must swing -- jazz musicians agree on that. However, even 100 years after the beginnings of jazz, it is still unclear what exactly constitutes the swing feel. With a sophisticated experiment and data analyses on more than 450 well-known jazz solos, physicists together with psychologists have unraveled a secret of swing. They were able to demonstrate that certain systematic deviations in timing are a key component of swing. These microtiming deviations are so small that they are not perceived as such even by professional jazz musicians, who nonetheless are using them unconsciously. Fri, 07 Oct 2022 11:20:53 EDT //www.koonmotors.com/releases/2022/10/221007112053.htm //www.koonmotors.com/releases/2022/09/220922103149.htm The risk of transmission from an infected person on a wind instrument is generally much lower than for people who sing or speak, provided that one spends the same amount of time in their vicinity, according to a new study. Thu, 22 Sep 2022 10:31:49 EDT //www.koonmotors.com/releases/2022/09/220922103149.htm //www.koonmotors.com/releases/2022/08/220830131046.htm Researchers develop a method to identify aortic valve dysfunction using complex network analysis that is accurate, simple to use, and low-cost. They used heart sound data to create a complex network of connected points, which was split into sections, and each part was represented with a node. If the sound in two portions was similar, a line was drawn between them. In a healthy heart, the graph showed two distinct clusters of points, with many nodes unconnected. A heart with aortic stenosis contained many more correlations and edges. Tue, 30 Aug 2022 13:10:46 EDT //www.koonmotors.com/releases/2022/08/220830131046.htm //www.koonmotors.com/releases/2022/08/220823115615.htm Abundant internet claims about the acoustic power of the Saturn V suggest that it melted concrete and lit grass on fire over a mile away, but such ideas are undeniably false. Researchers used a physics-based model to estimate the rocket's acoustic levels and obtained a value of 203 decibels, which matched the limited data from the 1960s. So, while the Saturn V was extremely loud, that kind of power is nowhere near enough to melt concrete or start grass fires. Tue, 23 Aug 2022 11:56:15 EDT //www.koonmotors.com/releases/2022/08/220823115615.htm //www.koonmotors.com/releases/2022/08/220816120211.htm Orchestral ensembles have faced many challenges when starting to perform again during the COVID pandemic, and contamination is a chief concern: specifically, whether wind instruments are vectors of contamination through aerosol dispersion. Researchers worked with musicians to deepen our understanding of how much aerosol is produced and dispersed by wind instruments. They used visualization to characterize the flow, tracked fog particles in the air, and measured aerosol concentration from wind instruments with a particle counter. Then they combined these to develop an equation to describe aerosol dispersion. Tue, 16 Aug 2022 12:02:11 EDT //www.koonmotors.com/releases/2022/08/220816120211.htm //www.koonmotors.com/releases/2022/08/220809101802.htm Managers need to make a consistent impression in order to motivate and inspire people, and that applies even more to video communication than to other digital channels. Researchers investigated the influence that charismatic leadership tactics used in text, audio and video communication channels have on employee performance. They focused on mobile work and the gig economy, in which jobs are flexibly assigned to freelancers via online platforms. Tue, 09 Aug 2022 10:18:02 EDT //www.koonmotors.com/releases/2022/08/220809101802.htm //www.koonmotors.com/releases/2022/07/220726132521.htm Researchers highlight the latest nanostructured components integrated on image sensor chips that are most likely to make the biggest impact in multimodal imaging and detailed a promising approach to detect multiple-band spectra by fabricating an on-chip spectrometer. The developments could enable autonomous vehicles to see around corners instead of just a straight line, biomedical imaging to detect abnormalities at different tissue depths, and telescopes to see through interstellar dust. Tue, 26 Jul 2022 13:25:21 EDT //www.koonmotors.com/releases/2022/07/220726132521.htm //www.koonmotors.com/releases/2022/07/220714165811.htm If simply breathing can spread the SARS-CoV-2 virus to others nearby, what about blowing into a tuba? Researchers used fluid mechanics to study the movement of aerosols generated by professional musicians. Thu, 14 Jul 2022 16:58:11 EDT //www.koonmotors.com/releases/2022/07/220714165811.htm //www.koonmotors.com/releases/2022/07/220714145044.htm 从飞机到公寓,现在大部分空间designed with sound-absorbing materials that help dampen the droning, echoing and murmuring sounds of everyday life. But most of the acoustic materials that can cancel out human voices, traffic and music are made from plastic foams that aren't easily recycled or degraded. Now, researchers have created a biodegradable seaweed-derived film that effectively absorbs sounds in this range. Thu, 14 Jul 2022 14:50:44 EDT //www.koonmotors.com/releases/2022/07/220714145044.htm //www.koonmotors.com/releases/2022/07/220706165409.htm Physicists have invented a 'quantum flute' that, like the Pied Piper, can coerce particles of light to move together in a way that's never been seen before. Wed, 06 Jul 2022 16:54:09 EDT //www.koonmotors.com/releases/2022/07/220706165409.htm //www.koonmotors.com/releases/2022/07/220701102740.htm A research team develops a sound-sensing skin-attachable acoustic sensor. The new sensor decreased in size and increased in flexibility and is applicable as auditory electronic skin. Fri, 01 Jul 2022 10:27:40 EDT //www.koonmotors.com/releases/2022/07/220701102740.htm //www.koonmotors.com/releases/2022/06/220622101415.htm A camera system can see sound vibrations with such precision and detail that it can reconstruct the music of a single instrument in a band or orchestra. Even the most high-powered and directed microphones can't eliminate nearby sounds, ambient noise and the effect of acoustics when they capture audio. The novel system uses two cameras and a laser to sense high-speed, low-amplitude surface vibrations. These vibrations can be used to reconstruct sound, capturing isolated audio without inference or a microphone. Wed, 22 Jun 2022 10:14:15 EDT //www.koonmotors.com/releases/2022/06/220622101415.htm //www.koonmotors.com/releases/2022/06/220615102920.htm Experts at the University of Bristol have discovered that the scales on moth wings act as excellent sound absorbers even when placed on an artificial surface. Wed, 15 Jun 2022 10:29:20 EDT //www.koonmotors.com/releases/2022/06/220615102920.htm //www.koonmotors.com/releases/2022/06/220607120858.htm Researchers carefully studied bubbles that form when water droplets come into contact with heated cooking oil and found that the type and number of bubbles formed depends on the amount of water absorbed by the chopsticks as well as the chopstick material. The water droplet explodes when it hit the hot oil, in three types of bubble events: an explosion cavity, an elongated cavity, and an oscillating cavity. Tue, 07 Jun 2022 12:08:58 EDT //www.koonmotors.com/releases/2022/06/220607120858.htm //www.koonmotors.com/releases/2022/05/220513134902.htm Systems in which mechanical motion is controlled at the level of individual quanta are emerging as a promising quantum-?technology platform. New experimental work now establishes how quantum properties of such systems can be measured without destroying the quantum state -- a key ingredient for tapping the full potential of mechanical quantum systems. Fri, 13 May 2022 13:49:02 EDT //www.koonmotors.com/releases/2022/05/220513134902.htm //www.koonmotors.com/releases/2022/04/220429145618.htm The health of residents living alongside a bus route in Gothenburg, Sweden, became considerably better when hybrid buses were replaced by buses fully powered by electricity. Along with the noise levels there was a reduction of fatigue, day time sleepiness and low mood, a new study shows. Fri, 29 Apr 2022 14:56:18 EDT //www.koonmotors.com/releases/2022/04/220429145618.htm //www.koonmotors.com/releases/2022/04/220426153637.htm Researchers created an ultrathin loudspeaker that can turn any rigid surface into a high-quality, active audio source. The fabrication process can enable the thin-film devices to be produced at scale. Tue, 26 Apr 2022 15:36:37 EDT //www.koonmotors.com/releases/2022/04/220426153637.htm //www.koonmotors.com/releases/2022/04/220422114732.htm Researchers have used the singing saw to demonstrate how the geometry of a curved sheet, like curved metal, could be tuned to create high-quality, long-lasting oscillations for applications in sensing, nanoelectronics, photonics and more. Fri, 22 Apr 2022 11:47:32 EDT //www.koonmotors.com/releases/2022/04/220422114732.htm //www.koonmotors.com/releases/2022/04/220405123935.htm Scientists have built instruments to give humans eyes and a nose on Mars -- and now they are helping add ears as well. Tue, 05 Apr 2022 12:39:35 EDT //www.koonmotors.com/releases/2022/04/220405123935.htm