Articles tagged with Atmospheric Pressure
Researchers found that northerly winds exacerbate ice loss in Antarctica by capping off polynyas, reducing ocean heat loss. This mechanism could be connected to human-induced climate change and potentially mitigated by reducing greenhouse gas emissions.
A research team developed an eco-friendly method to transform carbon dioxide into useful high-performance plastics using a simple copper-based catalyst. The process efficiently incorporates CO₂ into polymer materials with diverse functionalities, such as fluorescence, and can be quickly modified to create multifunctional materials.
Researchers from the University of Maryland tracked lightning storms in real-time using NASA's TEMPO instrument, detecting nitrogen oxide emissions that affect climate and air quality. The study reveals how lightning can produce pollutants that travel long distances, influencing air quality far from the original storm.
Researchers have developed a novel way to reach the unexplored mesosphere using lightweight flying structures that can float using sunlight. The devices, which were built at Harvard and other institutions, levitated in low-pressure conditions and demonstrated potential for climate sensing and exploration.
The study reveals three distinct phases: liquid, solid, and plastic ice, with the latter exhibiting picosecond rotational motion. The implementation of state-of-the-art spectrometers and sample environments enabled the first experimental observation of plastic ice VII at high temperatures and pressures.
Researchers at Osaka Metropolitan University have found key indicators for assessing chemical activity and temperature of active bubbles generated by ultrasonic waves. The study provides new insights into the relationship between bubble temperature and chemical activity, enabling more precise control of chemical reactions.
Researchers Vincent Chevrier and Rachel Slank investigate the existence of liquid brines on Mars, concluding that current evidence is insufficient. They suggest that while brines are promising for finding life on Mars, they remain highly un-habitable by terrestrial standards.
A new study establishes official climate divisions in Hawaii, improving climate research and forecasting. Chronic pain sufferers who spend time outdoors experience stronger weather-based effects, while lightning-initiated wildfires are responsible for more than half the acres burned in the contiguous United States.
Researchers developed a displacement-type ferroelectric material with high dielectric constant by incorporating rubidium ions into perovskite compounds. The material exhibits unique distortions and phase transitions across a broad temperature range.
A new paper argues that Venus, with its surface temperatures hot enough to melt lead and a toxic atmosphere, can provide valuable lessons about the potential for life on other planets. The study highlights the importance of understanding the conditions that make Earth habitable, as well as the risks of runaway greenhouse effects.
Scientists have developed a nanoporous magnesium borohydride structure that stores five hydrogen molecules in three-dimensional arrangement, achieving unprecedented high-density hydrogen storage. The material exhibits a capacity of 144 g/L per volume of pores, surpassing traditional methods and offering a promising alternative to large...
Scientists have created a novel instrument that enables the precise measurement of superconductors under extreme pressure, overcoming existing limitations. The new tool uses quantum sensors integrated into a standard pressure-inducing device, allowing for direct imaging of the material's behavior.
Scientists at Rice University found a natural 150-day cycle in the north-south oscillation of atmospheric pressure patterns, influencing hemispheric-scale precipitation and ocean surface wind stress. This discovery challenges conventional wisdom about atmospheric organization and has implications for climate modeling.
An international team found that volcanic eruptions can produce equatorial plasma bubbles in the ionosphere, disrupting satellite-based communications. The Tonga eruption triggered an irregular structure of electron density across the equator, delaying radio waves and degrading GPS performance.
The project, STEAM TANKS, aims to measure methane and other volatile organic compounds emitted from liquid storage tanks in West Virginia, Pennsylvania, and Ohio. The researchers will use mobile laboratories, machine learning methods, and partner with industry leaders to develop solutions to mitigate methane emissions.
A new method to regulate singlet fission (SF) in chromophores enables the design of SF-based materials with enhanced energy conversion. Pressure-based control strategy opens doors to novel, tunable SF materials.
Researchers at Tel Aviv University found that dedicated hyperbaric oxygen therapy is more effective in reducing pain and healing patients with fibromyalgia caused by traumatic brain injury. The treatment resulted in significant improvements in 2 out of 5 patients, including improved pain threshold tests and quality of life indicators.
Researchers used density functional theory to investigate the mechanical properties of superionic ice XVIII, which is thought to make up a large part of Neptune and Uranus. The study found that dislocations in the crystal lattice produce shear, leading to macroscopic deformations and potentially influencing the planets' magnetic fields.
The MEDA instrument aboard the Perseverance rover has provided high-precision meteorological measurements of Mars' atmosphere, revealing seasonal and daily cycles as well as dynamic phenomena like dust devils. The analysis sheds light on the Martian climate and its potential for supporting life.
Researchers have identified two exoplanets, Kepler-138c and d, as 'water worlds,' with a significant fraction of their volume likely composed of water. The planets are about one and a half times the size of Earth and have much lower densities than our planet.
The Perseverance rover's microphone recorded a Martian dust devil, providing insight into the planet's atmosphere and weather. The discovery helps scientists understand the effects of wind on solar panels, potentially extending the lifespan of future Mars missions.
Researchers have developed an algorithm to detect pressure activity indicative of dust devils in the Mojave Desert, which can inform their formation and life cycles on Mars. The study aims to improve Martian weather models and enhance robotic missions.
Astronomers found that a planet like GJ 1252b, orbiting an M dwarf star, would likely lose its atmosphere due to intense heat and radiation. The discovery narrows the search for habitable planets around these stars, but leaves room for possibilities further away from the star.
Researchers have confirmed the existence of Pekeris waves, a type of atmospheric wave theorized in 1937 but never proven to occur naturally. The waves were detected following the 2022 Tonga volcanic eruption using state-of-the-art observational data and computer simulations.
Researchers found the Tonga tsunami reached 90 meters in height, outperforming previous tsunamis like 2011 Japan tsunami. The event emphasized the need for improved detection systems, as volcano-based tsunamis are currently 30 years behind earthquake-based event monitoring tools.
A study found that winter storms in north-west India are 31% more frequent and 45% more intense during positive NAO phases, leading to increased moisture and precipitation in the western Himalayas. This could impact crop yields and water security in states like Jammu and Kashmir.
The Hunga Tonga volcano's 2022 eruption was the biggest bang since Krakatoa, with a pressure wave traveling around the world four times over six days. The explosion produced a shockwave comparable to the largest nuclear test, yet lasted four times longer.
Scientists are working on balloon-borne instruments that can detect seismoacoustic signals in Venus' atmosphere, helping to learn more about the planet's interior structure and formation history. The instruments aim to detect strong signals from ground motion on Venus due to the planet's thick atmosphere.
A study has shown that wind variations over the southern Red Sea are the main drivers of sea-level extremes, driving levels up and down depending on wind direction. This understanding is crucial for coastal planning and management to mitigate the impact of storm surges and coastal erosion.
Researchers from Tel Aviv University found that hyperbaric oxygen therapy (HBOT) relieves PTSD symptoms in treatment-resistant veterans, improving brain function and microstructure. The breakthrough study provides new hope for PTSD sufferers, offering an objective diagnostic tool and potential long-term improvements.
A research team at PNNL has developed a system that converts waste carbon from sewage, food crops, and algae into fuels while removing impurities. The electrocatalytic oxidation fuel recovery system generates hydrogen to power its own operation, making it potentially carbon-neutral.
A small clinical trial found that high-pressure hyperbaric oxygen treatment resolved severe COVID-19 breathing difficulties faster than standard therapy, with significant improvements in oxygen saturation and reduced risk of complications. However, further larger trials are needed to confirm the treatment's effects on survival.
Jupiter's banded pattern extends deep beneath the clouds, and the appearance of its belts and zones inverts near the base of the water clouds. The planet's microwave emissions reveal a transition zone between five and 10 bars, where the zones become bright and the belts dark.
Scientists have discovered two new cerium superhydrides, CeH9 and CeH10, which exhibit superconductivity at lower pressures than previously known compounds. This breakthrough brings researchers closer to creating room-temperature superconductors with more manageable pressure conditions.
Researchers at Nanyang Technological University (NTU) Singapore have devised a new method for producing urea, a key compound in fertilisers, through electrocatalysis. This approach produces urea five times more efficiently than previous methods and has the potential to contribute to sustainable agricultural practices.
Engineers at UC Riverside developed an air-powered computer memory that can be used to control soft robots. This innovation eliminates the need for electronic valves and computers, reducing size, cost, and power demands.
Scientists have discovered a new mineral, allabogdanite, at the Dead Sea that was previously only found in meteorites. The discovery has implications for our understanding of Earth's surface conditions and geological processes.
Researchers have created tables of responses for gold and platinum to extreme pressure, providing a standard for future researchers to calibrate the responses of other metals. The data generated by these experiments can aid in understanding exoplanets, planetary impacts, and moon formation.
A global research team has created a previously unknown two-dimensional material called beryllonitrene, which exhibits a distorted electronic lattice structure. This new material has great potential for applications in quantum technology, including high-performance computing and secure communication.
Researchers found that atmospheric dust particles from the Middle East supercharge the Indian summer monsoon by absorbing solar radiation, heating the atmosphere, and altering wind patterns. This 'elevated heat pump' drives moisture onto the Indian subcontinent, leading to increased precipitation.
A research group led by Dr. Qingyang Hu discovered a hydrous mineral that enters an exotic superionic phase, similar to water ice in giant planets. The team found that this superionic state may lead to a significant increase in electrical conductivity, potentially changing our understanding of Earth's mantle convection.
The new sensor measures small pressure changes in the body with high sensitivity and can detect pressure changes of just 2 kilopascals. It is designed to be implantable for long-term health monitoring and has a resolution of 2.0 kilopascals.
Researchers from Russia, China, and the US have synthesized a new superconducting compound, BaH12, with an unusually high hydrogen content. The compound exhibits room-temperature superconductivity due to its molecular structure, marking significant progress in understanding potential room-temperature superconductors.
Researchers at Swansea University have developed a faster, greener way to produce porous carbon spheres, which are crucial for carbon capture technology and renewable energy storage. The new method produces spheres with high carbon capture capacity and works effectively at large scales.
The NUS team has devised a method to convert natural gas into a non-explosive solid that can be easily stored and transported. Using a novel additive mixture, the conversion can be completed in just 15 minutes, which is faster than existing standards.
A recent study confirms theories developed by physicists over the last two centuries, showing the Earth's atmosphere vibrates like a bell. The study analyzed atmospheric pressure data for 38 years, revealing dozens of predicted wave modes, matching theory well.
Researchers simulate exoplanet conditions to study the boundary between water and rock, finding a new transitional phase that challenges current models of distant worlds. This discovery could inform our understanding of life evolving on these planets.
Researchers synthesized BP-structured nitrogen using diamond anvil cell apparatus and high-power laser heating. The new material exhibits colossal Raman intensity and unusual optical properties.
Graphene Flagship researchers successfully produce large and very high-quality crystals of monoisotopic hexagonal boron nitride (hBN) at room temperature using a new methodology. The hBN crystals exhibit exceptional quality, isotopic purity, and scalability for large-scale production.
Researchers at Skoltech and MIPT have found a rule that predicts the maximum superconducting critical temperature for metal hydrides based on their electronic structure. This breakthrough allows them to predict new superconducting hydrides, including those containing two elements and hydrogen.
Researchers at ETH Zurich develop a new form of 18-carat gold that weighs about five to ten times less than traditional gold, with a density of just 1.7 g/cm3. The lightweight gold is created by embedding thin discs of gold nanocrystals in a matrix of protein fibres and polymer latex.
Leafcutter ants can predict adverse weather by sensing changes in atmospheric pressure, allowing them to collect and store the largest possible amount of food. Under low pressure, scouts leave the nest faster, increasing foraging efficiency and cutting more leaves.
Researchers at Moscow Institute of Physics and Technology have synthesized a new superconducting material called thorium decahydride (ThH10), which exhibits high-temperature superconductivity at 161 kelvins. This breakthrough is significant as it could lead to the development of more practical applications for superconductors.
A team of scientists has successfully synthesized a new high-temperature superconductor, thorium decahydride (ThH10), with a critical temperature of 161 K. The material exhibits outstanding high-temperature superconducting performance and pushes the boundaries of classical chemistry.
Researchers use deflating beach balls to model microscopic hollow spheres, revealing properties that could aid in targeted drug delivery. This understanding may help control directed motion and improve cancer treatment.
Research found that fluctuations in atmospheric pressure impact the amount of natural gas leaked from wells below ground surface. Continuous monitoring can help accurately detect and evaluate gas migrations and emissions, ultimately reducing greenhouse gas emissions from leaking oil and gas wells.
Researchers have synthesized a novel superconductor CeH9 with exciting properties. The compound exhibits superconductivity at relatively low pressure of 1 million atmospheres.
Researchers from NUST MISIS and international partners created a new material by quenching rhenium to ambient pressure. The material preserved its properties even under normal atmospheric pressure. Using theoretical modeling, they recreated the process in laboratory conditions.
Researchers at KRISS successfully created room-temperature ice and controlled its growth behaviors by dynamically compressing water up to pressures above 10,000 atmospheres. This technology can artificially control the size, shape, and growth rate of ice regardless of temperature.
Researchers at Oak Ridge National Laboratory discovered crystalline phases of ice thought to exist beyond Earth's limits, challenging accepted theories about super-cooled water and amorphous, non-crystalline ice. The findings led to better understanding of ice and its various phases found on other planets and moons.