dynamics
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Physics
Plasma Arc Cutting: Scientists Decode Gas Flow Dynamics
Curvature leads to shock waves, reducing gas flow velocity and plasma arc cutting process efficiency. Credit: Upendra Tuladhar, Busan National University Plasma Arc Cutting (PAC) is a thermal cutting technology widely used in manufacturing applications such as shipbuilding, aerospace, manufacturing, abolition of nuclear power plants, construction and automotive industries. This process involves high-speed ejection of plasma or ionized gases, and…
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Physics
Dynamics of (and off) fluid flow of gradient fibers
It forms and falls off on the fibers, showing two different mechanisms. Credit: Benoit Scheid / The European Physical Journal Special Topics (2025). doi:10.1140/epjs/s11734-024-01457-z The general phenomenon of droplets falling from the surface is perhaps surprisingly not fully understood by scientists. Understanding the complex interactions of forces involved here is useful in industry. The structured packaging of the cooling tower…
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Physics
Excitons in organic semiconductors: Unlocking quantum entanglement and dynamics
Orthombikle Brene lattice, axis (left) and 𝑐axis (right) projections, 𝑏, 𝑏, 𝑐, adjacent 𝜋 molecular columns (represented by carbon carbon bonds) of the crystal axis lattice used for . Credits: Gerald Curran et al. Excitons encountered in technologies such as solar cells and television are quasiparticles formed by electrons and positively charged “holes” that move together in semiconductors. The excitons…
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Physics
Simulation matches the dynamics of Skill Mion to real -time experiments
Magnetic optical microscope image of Skymion, a dark spot marked by the blue circle of magnetic material. A spatial decomposed pin -fast potential that determines the special occurrence probability of Skyrmion is shown. This is uneven for material defects. The interpolation of the high resolution of the simulation and experiments, and the experimental results high resolution is shown around the…
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Chemistry
Imaging research on monoclonal antibodies shines the protein dynamics for the development of biopharmaceuticals.
A diagram showing the results of the Tandem-TimS device. The X axis shows the cross section or the size of the ions. The Y -axis represents the abundance of ions with a specific cross section. The black line indicates the result of NIST monoclonal antibodies. The illustration of the NIST monoclonal antibody is displayed on the right. Credit: Fanny Rue…
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Physics
Advanced techniques produce highly realistic simulations of fluid dynamics.
The researchers compared the computer vision simulation they developed with photos from the Mount St. Helens explosion. Credit: University of California, San Diego Computer scientists at the University of California, San Diego have developed a method to generate highly realistic computer-generated images of the fluid dynamics of elements such as smoke. The research, conducted by the Visual Computing Center at…
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Physics
Atomic sensors reveal hidden dynamics of molecular polarization
A small cell containing rubidium metal. The central magnetic field sensing component within an atomic magnetometer. Credit: ICFO Magnetic resonance imaging (MRI) has long been a cornerstone of modern medicine and provides highly detailed images of internal organs and tissues. MRI machines are large tube-shaped magnets commonly found in hospitals that use powerful magnets to map the density of water…
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Earth
Complex dynamics of the 2024 magnitude 7.6 Noto Peninsula earthquake in Japan – A long-term earthquake swarm and its preceding foreshocks
By KeAi Communications Co. Schematic diagram of fault activity during the 2024 Noto Peninsula magnitude 7.6 earthquake swarm. The crustal activity and faults that occurred during the long-lasting and violent earthquake swarm are based on Kato (2024). Courtesy of Xinglin Lei. The study, published in the journal Earthquake Research Advances, links the 2024 magnitude 7.6 Noto Peninsula earthquake to a…
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Science
A new strategy to simulate nonadiabatic dynamics of molecules on metal surfaces
Schematic workflow for nonadiabatic dynamics simulation of a molecule (e.g. CO) on a metal surface. Credit: Prof. Jiang’s team The team proposed a new approach to accurately describe the nonadiabatic dynamics of molecular electron transfer at metal surfaces. Their work was published in Physical Review Letters. Numerous experimental phenomena have demonstrated that nonadiabatic energy transfer is widespread in various interfacial…
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