Articles tagged with Thermal Expansion
Researchers from Tokyo Metropolitan University have discovered a hydrogen-absorbing material with negative thermal expansion properties, which can be tuned by adjusting the amount of hydrogen. This finding promises custom high-precision ingredients for precision nanotechnology, addressing volume changes in materials under heating.
A research team from Osaka Metropolitan University found that optimizing window-to-wall ratio and insulation can reduce energy consumption by up to 27% in subtropical regions. The study provides tailored design guidelines for each climate zone, promoting net-zero energy housing and climate adaptation policies.
Researchers developed an intelligent lithium plating detection system using a Random Forest machine learning algorithm, analyzing pulse charging data to identify subtle electrical signatures. The system achieves high accuracy and can be implemented without modifying existing battery systems.
The DS method demonstrates superior precision in measuring inter-mineral isotope fractionation, improving temperature determination results. The SSB method achieves sufficient precision but struggles with concentration matching, leading to potential discrepancies in δ26Mg data.
A new study reveals China's NTEs were significant sources of CH₄ and N₂O emissions between 1980 and 2020, with an accumulated GWP of 5.55 Pg CO₂-equivalent. The net warming effect is primarily driven by N₂O emissions.
A novel copper-based zeolite imidazolate framework (Cu-ZIF-gis) has been developed to separate deuterium (D2) from hydrogen (H2) at 120 K (-153°C), exceeding the liquefaction point of natural gas. This material exhibits improved separation efficiency and lower energy consumption compared to traditional methods.
Scientists developed a novel solvatochromic fluorescent dye that enables high-precision temperature measurements through changes in fluorescence properties. The researchers achieved exceptional sensitivity and resolution, ideal for bioimaging applications.
The study discovered a giant deformation potential of 123 eV, leading to exceptionally long polarization response times and enhanced spin lifetimes. Small polaron formation was confirmed through various techniques, including optical Kerr spectroscopy, X-ray diffraction, and phonon dynamics.
A new study combines satellite collar data with specialized cameras to shed light on the mysterious and important stage of maternal denning. The researchers found that using both methods can accurately predict when polar bears will emerge from their dens and how external factors like temperature influence their behavior.
Thermal stress is the key factor in degrading metal-halide perovskites used in solar cells. Researchers propose increasing crystalline quality and using buffer layers to improve stability.
NASA has successfully integrated its deployable aperture cover sunshade with the outer barrel assembly of the Roman Observatory, enhancing the telescope's ability to detect faint light from across the universe. The integration marks a significant milestone in the mission's assembly and testing phase.
Researchers at Vienna University of Technology have developed a new alloy, pyrochlore magnet, that exhibits nearly zero thermal expansion over an extremely large temperature range. This breakthrough is due to the material's heterogeneous composition, which balances out the usual thermal expansion effect.
Researchers at Queen Mary University of London uncover new insights into cordierite's unusual ability to resist changes in size despite significant temperature fluctuations. The team's simulations accurately reproduced experimental data, providing a comprehensive explanation for the material's behaviour at both low and high temperatures.
Researchers have demonstrated the suitability of a new electrode material, lithium titanium phosphate, for use in lithium-ion batteries in cold environments. The material's negative thermal expansion properties facilitate storage and transport of lithium ions, maintaining high performance at low temperatures.
Researchers from Texas A&M University have introduced a novel thermodynamic concept called the 'centotectic,' which investigates the stability of liquids in extreme conditions. The study provides critical information for determining the habitability of icy moons like Europa, with potential implications for planetary exploration efforts.
Researchers have created a versatile shape-changing polymer that can twist, tilt, shrink, and expand, mimicking animal movements. The polymer's unique properties make it useful for creating soft robots or artificial muscles, with potential applications in medicine and other fields.
A new study introduces a novel algorithm that utilizes Random Forest to estimate State of Charge (SOC) in Electric Vehicles (EVs), achieving superior accuracy and robustness. The RF model outperforms traditional methods, including Extreme Learning Machine, and holds promise for enhancing EV efficiency and reliability.
Higher temperatures caused by climate change are increasing evaporation enough to cause exceptional droughts in the American West. Evaporative demand now accounts for 61% of drought severity, while reduced precipitation only accounts for 39%. Climate change is expected to lead to more severe and longer-lasting droughts.
Researchers at MIT have designed tiny particles that can be implanted at a tumor site, delivering heat and chemotherapy to treat cancer. The treatment approach has been shown to completely eliminate tumors in most mice and prolong their survival.
Researchers found that 57% of tested chemicals altered fruit fly larvae behavior significantly, even at non-lethal doses. Long-term survival was compromised in a dose-dependent manner, with a 60% drop in egg-laying rates observed among exposed mosquitoes and Painted Lady butterflies.
Researchers discovered a mysterious subduction zone deep beneath the Pacific Ocean, reshaping our understanding of Earth's interior structure. The team found an unusually thick area in the mantle transition zone, suggesting the presence of colder material that slows down oceanic slabs as they sink through the mantle.
Researchers have created a single-step method for producing Invar alloys with zero CO2 emissions and improved mechanical strength. The new process integrates metal extraction, alloying, and thermomechanical processing into one reactor step.
A new study published in Physical Review Letters suggests that nanohertz gravitational waves may not originate from supercool first-order phase transitions. Researchers found that such transitions would struggle to complete, shifting the frequency of the waves away from nanohertz frequencies.
A recent study has confirmed the efficacy and safety of the dengue vaccine TAK-003, which reduces the risk of contracting the disease by over 50%. The vaccine has shown a high safety profile, with more than 90% of adults and children developing antibodies after administration.
The study found that Tipuana tipu grows faster at higher temperatures and can contribute to urban climate resilience. The tree can thrive in restrictive weather conditions, providing ecosystem services such as carbon capture and temperature regulation.
Researchers propose a new strategy to improve thermal management in quantum dots, achieving high in-plane thermal conductivity and reducing working temperatures. The QDs-radially aligned ultrahigh molecular weight polyethylene fibers (UPEF) composites demonstrate enhanced optical performances and reliability in optoelectronic devices.
A team of researchers led by Professor Beom-Kyeong Park has made a breakthrough in enhancing solid oxide fuel cell efficiency with a rapid PrOx coating method. The study demonstrated significant enhancements in SOFC electrode performance, reducing polarization resistance and boosting peak power density.
A recent study found that tree species can sustain life in temperatures higher or lower than where they are currently growing. The research revealed that trees have overlapping potential niches that extend beyond their realized niches, allowing them to expand their ranges. This new understanding challenges current methods for predictin...
Researchers have developed a novel perovskite-based anode material with mixed hole–proton conduction, achieving high efficiency at low and medium temperatures. The breakthrough could pave the way for important technological advancements in energy technologies.
Researchers propose a novel hydrogel electrolyte formula that effectively interrupts water clusters and enhances water covalency, resulting in an expanded voltage stability window. The design improves the battery's climate adaptability by regulating Zn solvation and interfacial adhesion.
Researchers found that sharks adapted by elongating their pectoral fins in response to warmer ocean temperatures, making movements more efficient. This evolution allowed them to thrive in the open ocean despite extreme heat.
A new study published in JAMA suggests that kidneys from deceased donors on dialysis can be safely transplanted into recipients, reducing the pool of available donors. The study found no significant difference in transplant failure or death rates between recipients of kidneys from donors with and without dialysis.
Scientists from TU Delft and Brown University engineer string-like resonators capable of vibrating for extended periods at room temperature, enabling sensitive sensing applications. The innovation uses advanced nanotechnology techniques and machine learning algorithms to create ultra-long strings with minimal energy loss.
Researchers used thermodynamics to describe the expansion of the Universe, finding that adiabatic and anisotropic effects are accompanied by cooling due to the barocaloric effect. The study proposes a novel way to investigate anisotropic effects associated with the expansion of the Universe.
Researchers demonstrate how a simple mirror design can amplify radiative cooling processes for buildings. The mirror structure effectively guides thermal radiation towards the most transmissive portion of the atmosphere, increasing cooling power.
A novel pyroelectrochemical cell (PEC) developed by University of Utah engineers can generate electricity from ambient temperature changes, demonstrating its potential for 'Internet of Things' applications. The device stores energy in an electric double layer, enabling it to power sensors without recharging.
Researchers reconstructed a Late Holocene-aged subfossil coral death assemblage and compared it to modern reefs in Southeast Florida. The study reveals significant differences in coral composition between the two periods, suggesting that modern reefs may not be able to support range expansions of temperature-sensitive species.
Researchers developed ultra-thin defect-free semiconducting fibers, over 100 meters long, which can be woven into fabrics. The fibers demonstrate excellent electrical and optoelectronic performance, enabling various applications such as wearable electronics and sensors.
The Zero-Energy Switchable Radiative Cooler (ZESRC) is a temperature-responsive solution that balances building temperatures sustainably. Field experiments demonstrate its effectiveness across seasons, reducing energy consumption by 14.3% compared to other devices.
Researchers visualize second sound, a wave-like movement of heat, independent of physical particle motion in a superfluid. The findings expand understanding of heat flow in superconductors and neutron stars.
A new universal figure-of-merit for thermophotovoltaic (TPV) devices has been introduced to assess performance and balance power density and efficiency. This metric enables the classification of previously reported experimental results, providing a clear picture of TPV device overall performance.
A recent study published in npj Climate and Atmospheric Science reveals that changes in subtropical and midlatitude eddy activity control the variation of the Hadley cell edge latitude. The researchers analyzed 41 years of data and found associations with El Niño, La Niña, and the Arctic oscillation.
Scientists have engineered a non-magnetic material called tantalum silicide to achieve efficient spin Hall effect at high temperatures through Berry phase monopole engineering. This breakthrough could lead to the development of ultrafast, low-power and high-temperature spintronic devices.
A new study by Cornell University found that only 5% of Adirondack lakes can maintain cold and oxygenated water, making it unlivable for trout and other cold-water species. Climate warming and lake browning have severe consequences for temperate lakes in the region.
Researchers unveiled a two-dimensional Metal Organic Framework (MOF) that showcases negative thermal expansion and unique origami tessellation patterns. The MOF's deformable net topology enables origami-like movement in response to temperature changes.
Researchers investigated thermal expansion characteristics of TATB-based PBXs, analyzing the microstructural evolution and consequential effects on performance. New design approaches, including negative thermal expansion polymers and fillers, hold broad application prospects for suppressing irreversible thermal expansion.
Researchers at NYU Abu Dhabi have developed a unique woven fabric made entirely from flexible organic crystals, expanding their properties to create a remarkably strong and resistant material. The new fabric has potential applications in flexible electronics and extreme conditions such as low temperatures encountered in space exploration.
Researchers predict that vampire bats will expand their locations in search of more stable climates, potentially linked to a spillover of rabies. The team's work aims to identify and track the bats by traveling to Colombia to contain the spread.
The study found that Ryugu and CIs share a common genetic heritage, but the asteroid's Cr isotopes exhibit anomalies that could be caused by water-driven processes. These anomalies are thought to have arisen from the physicochemical fractionation of presolar nanoparticles and secondary minerals.
Researchers from the University of Plymouth discovered coral reef bleaching at depths previously thought to be resilient, highlighting the vulnerability of mesophotic coral ecosystems to thermal stress. The study suggests that climate change is causing a deepening of the thermocline, leading to increased bleaching in the deeper ocean.
Global temperatures are projected to reach unprecedented highs in 2023 due to factors such as El Niño and widespread wildfires. The China Global Merged Surface Temperature dataset 2.0 reveals that the year is expected to be the hottest on record, with global mean sea surface temperatures and land air temperatures reaching all-time highs.
Researchers developed a noninvasive technique to visualize and differentiate nerve tissue using multispectral photoacoustic imaging. The study revealed the optimal wavelengths for identifying nerve tissue, which could improve nerve detection and segmentation techniques.
A subpolar Atlantic plankton species was found in the central Arctic Ocean during the Last Interglacial period, indicating summers were ice-free. This discovery has implications for understanding Arctic climate dynamics without sea ice.
Research found trees and shrubs respond differently to warming, with trees advancing and shrubs delaying their growth due to increased sensitivity to chilling accumulation. This phenological mismatch confers a competitive advantage to trees, potentially driving upward treeline shifts.
A Northwestern University study links underground climate change to shifting ground beneath urban areas, causing building foundations and surrounding ground to move excessively and crack. The researchers also found that past building damage may have been caused by rising temperatures, which will continue for years to come.
A study found that truncating fins in liquid metal-based microchannel heat sinks increases flow rate, reducing coolant temperature and heat sink temperature. The expanded design achieves a maximum reduction of 36% in total thermal resistance for low channel aspect ratio microchannels.
Researchers developed a pilot study to address the issue of thermal discomfort in social housing projects. They proposed replacing conventional windows with fully openable tilting windows, monolithic expanded polystyrene walls, and green-tinted tempered glass, which can reduce energy consumption and greenhouse gas emissions.
Researchers optimize micronozzle design through numerical simulation and design optimization to improve thrust force and specific impulse. The study finds that wall heat transfer, convergence duct design, throat shape, and expander structural parameters significantly affect nozzle performance.
Researchers at West Virginia University have developed a new theory that extends the first law of thermodynamics to systems not in equilibrium. This breakthrough has numerous potential applications across physics and other sciences, including studying plasmas in space and low-temperature plasmas.
A Chinese research team has developed a barocaloric thermal battery concept that extracts thermal energy from low-temperature waste heat sources by controlling pressure. The system, materialized in ammonium thiocyanate, releases up to 11 times more heat than the mechanical energy input.