Articles tagged with Sound Pressure
Engineers at Asius Technologies create a device that seals the ear canal, boosting sound pressures and alleviating listener fatigue. The technology uses a sacrificial membrane to absorb pressure waves, protecting the ear drum and preventing over-activation of the acoustic reflex.
A Virginia Tech researcher is working on a new device that uses electrical stimulation to help stroke patients regain their voice. The device, which is still in development, aims to improve the quality of life for patients with vocal paralysis and other neuromuscular disabilities.
Cyclone Jal's remnants have been spotted in the Arabian Sea, with NASA monitoring their movement. The low-pressure area showed signs of circulation and convection on Nov. 9, indicating a potential for regeneration.
Tropical Storm Hermine formed quickly in the Gulf of Mexico, producing heavy rains over northeastern Mexico and South Texas. The storm's organization was enhanced by extremely warm sea surface temperatures, which powered its rapid intensification.
Researchers recreated high pressures using a diamond-anvil cell and found unusual properties in iron-rich magnesium-iron oxide minerals. These findings suggest that ultra-low velocity zones (ULVZs) at the core-mantle boundary may be composed of solid, compositionally distinctive rocks rather than liquid-bearing materials.
The study found that male zebra finches use their stronger vocal muscles to control the pitch of their songs, while females rely on lung pressure. This discovery sheds light on how birds learn to sing and the complex mechanisms behind birdsong.
A low-pressure area, System 90E, is developing in the Eastern Pacific with strong thunderstorms and cold cloud tops, indicating a potential tropical cyclone. The system is expected to continue consolidating over the next 24-36 hours with a good chance of development within the next 24 hours.
NASA's Aqua satellite captures infrared image of System 93W, showing a comma-like area of showers and thunderstorms with two areas of strong convection. Forecasters predict a good chance for development in the next 24 hours as the system moves southeast of Hong Kong.
NASA's GOES-11 satellite indicates two areas of showers and thunderstorms that may develop in the Eastern Pacific, potentially replacing Tropical Storm Ignacio. The storm is expected to weaken due to adverse conditions, including cooler waters.
The second Tropical Depression has the potential to come back after weakening, while three other areas are being monitored for development. Residents of Florida should be aware of a potential for tropical development on both coasts this weekend.
Researchers measured the chemical reactions and light emission from a single water bubble excited by sound waves, finding temperatures high enough to break water molecules apart. The experiment showed that only a small fraction of sound energy is converted into light, with most energy going into mechanical energy.
Researchers suggest using ultrasound and audible sound waves to measure eye fluid pressure. This could enable glaucoma patients to monitor changes in pressure, taking medication accordingly.
Researchers at Carnegie Institution use X-ray diffraction to determine iron's elasticity at high pressures, which could explain seismic anisotropy in the inner core. The findings suggest the inner core is close to melting and may contain additional components with low shear-wave velocities.
Researchers predict significant changes in mineral behavior and crystal structures under high pressure, affecting the Earth's magnetic field. The study investigates the properties of materials containing iron, manganese, cobalt, and nickel at extreme conditions.