Articles tagged with Computer Simulation
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.
A federal grant will fund a new course at the University of Illinois and support training for clinicians in conducting early interventions with people who abuse substances. The training uses a computer simulation called SBIRT, which identifies clients at risk of substance abuse problems and teaches clinicians how to respond accordingly.
A Northwestern University engineering team has designed a data visualization system to provide real-time insights into the Bank of America Chicago Marathon. The system uses historical and real-time data to forecast participant concentrations, helping officials plan accordingly.
Scientists have gained insights into the dynamic behavior of two switch proteins using subatomic resolution. The study reveals that an amino acid in one protein prevents a water molecule from dissociating the phosphate group from GTP, leading to slower switch-off.
A recent study suggests that grandmothering played a crucial role in the development of human pair bonds, which distinguish us from other primates. With increasing human longevity, grandmothers helped feed their weaned children, allowing their daughters to have more kids and passing on genes.
Researchers at Eindhoven University of Technology found that following a team car reduces wind resistance and saves crucial seconds. The effect can add up to tens of seconds, making it a game-changer for Tour de France riders in time trials.
Researchers at Uppsala University have studied the dynamics of active swarms using computer simulations and experiments on unicellular algae. They found that the collective response was only possible when the field was varying slowly, resulting in a more persistent motion.
Researchers at Ruhr-University Bochum recreated memory formation in the hippocampus using computer simulations, challenging the existing model. They found that the CA1 region plays a key role in completing memories, while the CA3 region is not as crucial as previously thought.
Brown University researchers use numerical models to study the dynamics of active colloids, finding that fluid flows play a crucial role in shaping emergent macro-scale patterns. At high concentrations, particles segregate into lanes and form swirling vortices before jamming into crystals.
Ibn Sina's seven rules for testing drug potency via analogy and experiment are relevant to modern clinical trials. His seventh rule emphasizes the need for human-based experimentation to avoid differences between animal and human bodies.
Scientists are conducting experiments to study the motions, forces, and pressures generated by waves on planing-hull boats. This research aims to reduce weight while maintaining structural adequacy, enabling Navy boats to travel faster in higher seas states.
Researchers have predicted a liquid phase in atomically thin golden islands that patch small pores of graphene, where gold atoms flow and change places in the plane. The liquid state is possible when the edge of graphene pore stretches the metallic membrane.
Researchers discovered that Escherichia coli bacteria can cooperatively share resources by breaking down glucose into acetate and exchanging it with other cells. This behavior emerged spontaneously in simulated colonies as oxygen levels decreased, allowing cells to adapt and thrive.
A team of MIT mathematicians developed a theory predicting wrinkled patterns on curved surfaces, confirmed through experiments. The theory states that curvature is the main parameter determining pattern formation, with thicker shells forming hexagonal patterns and thinner shells resulting in labyrinthine configurations.
Scientists at OIST created models to investigate mixtures of self-motile and passive agents, finding that only a low fraction of self-motile agents are needed to achieve desired flow patterns. This research has promising applications in microfluidic processes such as water purification and self-powered drug delivery systems.
Researchers developed a 'virtual lab' to study nanocomposites, allowing for prediction of material properties based on chemical composition and processing conditions. The simulations revealed how polymers and clay particles interact, enabling the development of improved composite materials.
A team of researchers used computer simulations to study how ion flux works in voltage gated sodium ion channels. The results revealed that a specific amino acid, glutamic acid, plays a crucial role in regulating channel flux and enabling selective sodium influx.
Computer simulations show that two knots on a DNA strand can interchange positions through a growing and diffusing knot mechanism. The swapping of positions is relevant for future technologies like nanopore sequencing, where long DNA strands are sequenced by being pulled through pores.
Researchers at Johns Hopkins University have made a rarely used math strategy called the Jacobi method work significantly faster, potentially speeding up computer simulations in aerospace design, shipbuilding, and other engineering tasks. The updated method could solve problems that previously took 200 days to solve in just one day.
The team of researchers used innovative simulation methods to gain a deeper understanding of finite-size corrections in interfacial tension calculations. Their work will enable more accurate predictions and help analyze interfacial tension with high precision using simulations.
The Illustris simulation recreates the evolution of the universe with unprecedented resolution, including spiral galaxies, elliptical galaxies, and large-scale structures. It also accurately models chemistries of individual galaxies, offering a realistic view of cosmic evolution.
A team of researchers used computer simulations to study the aerodynamics of flying snakes, discovering that whirls of wind surrounding the snake's body provide an extra boost of lift. This unique shape helps the snake glide efficiently through the air, making it a fascinating example of nature's efficient design.