Articles tagged with Particle Physics
Scientists measured how tiny spheres in turbulent water separate based on initial distance, revealing particles obey Batchelor dispersion initially before transitioning to Richardson-Obukhov law behavior. The findings can improve models of pollutant dispersion and help explain crustacean navigation using odors.
Physicists at Rutgers University have rewritten the classical understanding of quantum statistical physics by finding a simpler way to derive a mathematical formula. The discovery, published in Physical Review Letters, could lead to rewrites of tomorrow's physics textbooks.
Researchers at NYU studied the movement of polymer beads in a viscous fluid and found that low concentrations could be reversed, but higher concentrations led to irreversible behavior. This phenomenon is caused by extreme sensitivity to small changes in particle positions, making it a key finding for understanding chaotic systems.
Case researchers Ramani Pilla, Catherine Loader, and Cyrus Taylor discover a method to find needles in haystacks using geometric approaches. They test their technique with computer simulations, demonstrating its ability to significantly increase detection probabilities.
Duke researchers create a mathematically nimble way to follow the transfer of forces through a laboratory version of a granular mass, revealing the existence of long-range force chains. The new technique allows for quantitative analysis of force dynamics in granular materials.
Researchers have devised a thermometer that can measure granular temperature based on the degree of agitation of its component particles. The discovery could lead to better understanding of powders and particulate materials in industries such as pharmaceuticals, food processing, and construction.
Researchers at Washington University have discovered that organic carbon and amorphous silicates in interstellar grains embedded within interplanetary dust particles are the carriers of the astronomical 2175 Å extinction line. This finding solves a 40-year-old mystery, providing evidence for the origins of this feature.
The 'tango array' device can sort particles ranging from bacterial cells to DNA segments in a matter of seconds, distinguishing them by size. This breakthrough technology has the potential to greatly accelerate biological research and replace some centrifuge devices.
Princeton physicists Paul Chaikin and Salvatore Torquato used M&Ms to investigate the physical principles behind particle packing. They found that oblate spheroids can pack up to 68% of the container's space, exceeding the density of perfect spheres.
A team of Cornell physicists and engineers are developing an instrument that can track hundreds of particles simultaneously, allowing for a more comprehensive understanding of turbulent flows. The technology has the potential to improve climate models and predict how pollutants disperse in air or water.
Researchers have discovered that forces within granular materials decrease as they slide, but are then transferred to a network of 'force chains' that increase in strength. This new understanding could improve modeling of geological systems and design of industrial devices such as hoppers.
Researchers have found that highly connected proteins are unlikely to interact with each other, a phenomenon that helps reduce interference and increase stability in protein networks. This discovery was made possible by computer modeling of protein interactions in yeast cells, which revealed an
Researchers measured entropic forces exerted by rod-shaped viruses on particles in water, revealing additional effects of flexibility. The findings suggest that flexible viruses can effectively occupy more space, driving rearrangements in the system and increasing attraction between spheres.
Researchers compared two measuring techniques to quantify the effects of atmospheric particles on climate change. They found agreement between methods within 20% during polluted conditions, paving the way for more accurate global measurements.
Researchers compared local and remote aerosol measurement techniques to better understand their chemistry and physics. The study used a combination of ground-based instruments and satellite lidar to analyze pollution levels and their impact on climate change.
Researchers found that aged varnish molecules contribute to the typical yellow discoloration of old-master paintings. The study suggests that larger molecules in the varnish layer are harder to dissolve during restoration processes.
Researchers have found that tiny air pollutant particles can penetrate deeper into the lungs of healthy adults, potentially threatening their health. The study suggests that these particles can move up to two times faster through the airways than previously assumed, with implications for public health and environmental regulations.
Researchers at Duke University discovered that granular particles can form dramatic chains to relieve stress, leading to potential explanations for self-destruction in passive containers. The study may also shed light on natural phenomena like earthquakes and the behavior of materials under low gravity.
The vaccine aims to prevent HPV-related warts and cervical cancer in women, with 5,000 deaths occurring annually in the US. The study will verify safety and immune response, paving the way for a broader vaccine protecting against multiple HPV types.