Articles tagged with Computer Simulation
A new study simulates global warming at unprecedented resolution, revealing that increasing CO2 concentrations will weaken the intensity of the ENSO temperature cycle. This could lead to fewer El Niño and La Niña events, with potential implications for rainfall extremes.
A new study assesses the impacts of sea level rise and wetland change on storm surge flooding in the Chesapeake Bay region. The results show that even relatively weak storms in 2100 could have a greater impact than high-intensity storms today, with significant property damage and effects on people.
High-intensity focused ultrasound (HIFU) technology is being explored for its potential to destroy cancerous tumours while minimizing damage to healthy tissue. Researchers at the University of Waterloo have made significant progress in understanding how HIFU works on a cellular level, paving the way for future clinical trials.
A research study is being conducted to understand muscle fatigue in older adults, with a focus on its effects on mobility and daily activities. The study aims to develop a new metric called fatigability to assess an individual's change in performance and perceived effort in response to standardized activity.
A study on Homo floresiensis found its bite could exert around 1300 Newtons of force, comparable to modern humans and some extinct cousins. This suggests that the Hobbit might have been at greater risk of facial bone strain or dislocation when biting hard foods.
The OPTIMADE API specification allows for seamless access and interoperability across multiple materials databases, including AiiDA and Materials Cloud. Researchers can query databases, expose links between them, and deliver standardized results using the OPTIMADE API.
Michigan Tech researchers developed a model to calculate how particular chemicals break down in surface water using singlet oxygen, which degrades contaminants and helps protect our waterways. The study's findings can aid environmental engineers and scientists in estimating half-lives of chemicals and predicting their degradation rates.
A recent study modelled social, economic, and personal factors influencing voters and parties to identify four key levers that tip the balance towards political extremes. Social contagion and macro-economic factors such as employment and economic growth play a significant role in driving polarization.
Researchers developed a 'site-specific' strategy to improve cereal yields in Nepalese smallholder farms, outperforming traditional generalized approaches. The Nutrient Expert system uses machine learning to identify crop-specific nutrient requirements, optimizing yield and resource efficiency.
Researchers found that small pockets of virus-laden air can detach from an exhaled breath and travel in a ballistic manner, reaching large distances. This phenomenon is known as the butterfly effect, where miniscule initial variations are amplified by turbulence.
Researchers used computer simulations to study evolution and phenotypic switching in organisms, finding that a 'hidden' switch mechanism is used for stability, and can be activated in response to environmental changes. The study suggests that this mechanism helps organisms maintain gene expression levels under stable conditions.
Computer simulation is crucial for developing human-interactive smart robots, enabling safer, faster, and more efficient design and control. By analyzing the biology of soft animal structures, researchers can construct virtual proving grounds to understand robot behavior and optimize performance.
A newly published Science journal paper reveals that water can exist as two liquids of differing density, with noticeably different properties and a 20% difference in density. The discovery explains many of water's anomalous properties and has significant implications for various scientific and engineering applications.
Physicists from the University of Göttingen used computer simulations to investigate aging in living glassy systems, finding that persistent particle activity drives aging. This discovery has potential consequences for biological processes such as wound-healing and cancer metastasis.
A computer model developed by a RUDN University professor shows that low speeds on bumpy roads can cause significant vehicle body damage. The study found that spot welded joints are particularly prone to failure at lower speeds, affecting the vehicle's crashworthiness and service life.
Scientists propose that asteroids Bennu and Ryugu were formed directly as spinning-top shapes due to a collision, with their equatorial craters ruling out recent re-shaping. The team's computer simulations suggest two possible explanations for the different hydration levels of the two bodies.
A new NIST formula could significantly improve Wi-Fi and cellular system performance in unlicensed bands by selecting optimal frequency channels. The formula uses machine learning to maximize data rates and reduce interference, with computer simulations showing it can outperform exhaustive trial-and-error methods.
A new model explains the simultaneous origins of Fermi bubbles and galactic center biconical X-ray structure, with energy injection from a pair of jets emanating from Sgr A* five million years ago. The study suggests the total energy injected is comparable to 20,000 supernovae.
Researchers at Duke University found that ultra-black butterfly wings achieve light-absorbing properties using a 3-D structure of wing scales, which creates an optical illusion. This study could help design thinner ultra-black coatings for applications like military camouflage and space telescopes.
Physicists at Vienna University of Technology have discovered a new type of quasi-particle called the pi-ton, which consists of two electrons and two holes. The pi-ton is created by absorbing a photon and decays into another photon, exhibiting properties similar to those of particles.
Researchers developed mathematical models to understand what conditions produced traditional community structures and conventions around the world. Simulated family groups with shared traits naturally grouped together into distinct cultural groups, leading to the emergence of incest taboos and direct or generalized exchange kinship str...
Researchers at The University of Tokyo introduced a new physical model that predicts the dynamics of glassy materials based solely on their local degree of atomic structural order. This theory greatly improves our understanding of how glassy liquids become more viscous on cooling, with potential applications in manufacturing.
Researchers have used physics-based redesign to optimize the industrial bread dough kneading process. Their simulations showed that radial mixing in a spiral kneader is more effective than vertical mixing, leading to improved bread quality. The findings could lead to enhanced mixing performance and reduced over- or under-kneading.
A German-British team used computer simulations to demonstrate how the merger of two stars creates strong magnetic fields. This process could result in the formation of magnetars, which are thought to have the strongest magnetic fields in the universe.
Researchers at Aberystwyth University used computer simulations to find optimal bubble arrangements within circular discs that minimize perimeter length. The study reveals that the number of possible structures increases as the number of bubbles grows, leading to a narrower range of area ratios for the smallest perimeter.
Computer simulations reveal that creep deformation can modify material properties, altering the chances of certain events occurring within the material. The researchers also found patterns in intervals between deformation events conforming to Omori law.
A team of Chinese and Canadian scientists developed a theoretical model to predict properties of hydrogen nanobubbles in metal using computer simulations. The model reveals simple rules for hydrogen trapping behavior in nanovoids, providing a powerful tool for evaluating hydrogen-induced damage in fusion reactors.
A team of researchers from Japan and the US found that a gassy insulating layer beneath Pluto's icy surface could be protecting an ocean. The simulations showed that without this layer, the ocean would have frozen hundreds of millions of years ago, but with it, it remains liquid for over a billion years.
A team of scientists successfully conducted the first computer simulation that matches ocean floor sediment data on climate evolution over 3 million years. The study reveals that changes in CO2 levels were a main driver of ice ages, and current greenhouse gas emissions are now triggering unprecedented climate change.
Researchers used cryo-force spectroscopy to study DNA elasticity and binding forces at low temperatures. The study reveals that DNA behaves as a chain of small coil springs, with the spring constant determined for individual components.
Researchers at Florida State University have found that abrupt variations in the seafloor can cause massive destruction from rogue or freak waves. The study, published in Physical Review Fluids, reveals that these extreme events follow a gamma distribution, a mathematics function that defies traditional bell curve patterns.
Osaka University researchers developed an algorithm for numerical calculation of EM noise in electric circuits, reducing interference caused by transmission lines. The new method allows for more practical calculations and demonstrates the reduction of EM noise using symmetric 3-line configurations.
Researchers from UC3M and Imperial College London have developed a new theory that explains the behavior of liquids and gases at the microscopic scale. The study reveals that the arrangement of atoms exhibits certain mathematical properties called resonances, which provide a consistent description of liquid-gas fluctuations.
Researchers at Kiel University developed a new computer simulations method to accurately describe dynamic properties of warm dense matter. The study provides unique insights into the behavior of electrons under extreme conditions.
A team of astronomers used ALMA to observe a supermassive black hole in the Circinus Galaxy, finding that gas expelled from the center interacts with infalling gas to create a turbulent three-dimensional structure. This 'donut' structure is not rigid, but rather a complex collection of highly dynamic gaseous components.
Researchers at NTNU used a combination of techniques to study nearly 100,000 simulation images and identify what triggers water molecules to split. They discovered a small number of variables that describe the causative mechanism, providing detailed knowledge of the reaction.
Researchers at Stockholm University have discovered correlated motion in water dynamics on a sub-100 femtosecond timescale, indicating a complex network of hydrogen bonds that play a role even on ultrafast timescales. The study reveals the coordinated dance of water molecules due to the formation of tetrahedral structures.
Mark Owkes, an assistant professor of mechanical engineering at Montana State University, has earned the National Science Foundation's CAREER award for his research on complex liquid-gas interactions. His goal is to create more accurate and faster simulations to help engineers design better technologies.
Researchers found that random packings of disks always form a periodic structure, achieving higher densities than random arrangements. The probability of a channel not being periodic decreases exponentially with increasing fill level, regardless of container width.
Researchers have developed Tumorcode, an open-source software that assembles multiple models to simulate tumor growth. The software allows for the study of topological and functional aspects of tumors, relevant for therapeutic treatments.
Physicists develop a time-efficient method for simulating complex systems by creating an ensemble of multiple runs with randomized initial conditions. This approach, called a swarm, reduces overall processing time while maintaining accuracy.
Researchers at Niels Bohr Institute used computer simulations to study the influence of local environmental conditions on star formation. Their findings suggest that factors such as magnetic fields and turbulence play a crucial role in shaping the star formation process.
Researchers suggest dense star clusters as source of gravitational waves, with black holes colliding to produce these waves. Computer simulations and observations point to globular clusters as ideal environments for black hole collisions.
Researchers used a coarse-grain approach to model the behavior of fluids in tiny pores within shale rock. The simulations incorporated high-resolution imagery of shale samples, allowing for better probing of the underlying physics. This new understanding could lead to more efficient oil and gas extraction methods.
Researchers at SISSA used computer simulations to investigate knotted DNA passage through nanopores. The study found that DNA knots can pass through pores in two distinct ways, with the knot's size not affecting the passage time.
A comprehensive computer simulation study confirms that climate change will substantially damage US crop yields, especially wheat, maize, and soybean. Increasing irrigation in regions with sufficient water can help mitigate the effects of global warming on crops.
Researchers at FAU discovered that cholesterol strongly influences CXCR4 dimerization and signal transmission in human cells. Their computer simulations revealed that cholesterol is required for the correct formation of GPCR pairs, which affects their function.
Scientists found that the mechanism of splitting disulphide bonds under tensile stress changes depending on bond strength, making it harder to interpret experimental data. Quantum mechanical simulations revealed complex interactions with surrounding water molecules.
Researchers found that supersonic solitary waves in nano-electronics crystals can be used for electric charge or matter transport and energy storage with extremely low heat dissipation. These localized excitations could lead to the development of transistors without silicon, revolutionizing the field of nano-electronics.
Researchers at the University of Surrey have discovered hundreds of undetectable black holes within a globular cluster, overturning old theories on their formation. The study uses advanced simulations to map the cluster and its behavior, revealing the effects of these massive objects on the surrounding stars.
Researchers have used molecular dynamics simulations to study the spatial and temporal behavior of myoglobin, a protein involved in oxygen transport. The simulations provide insights into the underlying chemical structure and dynamics of metastable intermediates, shedding light on the protein's function.
New computer simulations from Georgia Tech investigate the possibility that red giant stars were dimmed after collisions with a gaseous accretion disk at the galactic center. The simulations suggest that these collisions could have caused significant damage to the red giant stars, stripping away mass and lowering their kinetic energy.
Research at Eindhoven University of Technology found that motorcycles can reduce air resistance for cyclists by up to 14% when riding behind them. This could result in significant time gains in time trials, with some estimates suggesting an advantage of several seconds to a minute.
A new computer simulation called MEteor engages middle school students in learning physics concepts like planetary motion and gravitational acceleration by having them physically act out asteroid travel. The study found that students who used the immersive simulation showed significant gains in understanding and positive attitudes towa...
Researchers developed an electronic version of a logistic map that can interact with multiple maps, making it scalable. The model allows for the comparison of previous computer simulations with experimental results using state-of-the-art technology.
Researchers at Johns Hopkins University have developed a computer model to analyze wind conditions on the Masters' notorious 12th hole, revealing that tall tree canopies significantly impact accuracy. The system can predict wind direction and speed's effect on golf shots, aiding golfers in choosing clubs and aiming strategies.
Physicists have successfully simulated a disordered quantum system on the largest supercomputers, providing new insights into the many-particle problem. The researchers used controlled experiments and computer simulations to study the behavior of materials such as high-temperature superconductors.
A research team led by GGC physicist Lior Burko simulated a rotating black hole for the first time, revealing that objects can stay intact as they approach the center. The simulation supports popular science fiction scenarios where black holes are used as portals for hyperspace travel.
Researchers developed simulations of the human heart using computational modeling, aiming to create personalized treatment strategies for patients with reduced cardiac function. The project uses virtual personalized heart models to predict CRT feasibility and optimize pacemaker setup.
A recent study has revealed that Earth's first large and complex organisms formed more intricate ecosystems than previously thought. The research focused on an extinct organism called Tribrachidium, which lived during the Ediacaran period, characterized by suspension feeding, a feeding mode not documented in ancient species.