Sheepdogs use just two simple rules to round up large herds of sheep, scientists have discovered. The findings could lead to the development of robots that can gather and herd livestock, crowd control techniques, or new methods to clean up the environment.
New research by University of Montana doctoral student Jared Oyler provides improved computer...
All life on Earth came from one common ancestor — a single-celled organism — but what it looked...
A NASA-led team of scientists has created detailed 3-D maps of the atmospheres surrounding comets, identifying several gases and mapping their spread at the highest resolution ever achieved. Almost unheard of for comet studies, the 3-D perspective provides deeper insight into which materials are shed from the nucleus of the comet and which are produced within the atmosphere, or coma.
Physicists have created a tractor beam on water, providing a radical new technique that could confine oil spills, manipulate floating objects or explain rips at the beach. The group discovered they can control water flow patterns with simple wave generators, enabling them to move floating objects at will. The new technique gives scientists a way of controlling things adrift on water in a way that resembles sci-fi tractor beams.
When the space shuttle Columbia disintegrated on re-entry in 2002, sophisticated computer models were key to determining what happened. A piece of foam flew off at launch and hit a tile, damaging the leading edge of the shuttle wing and exposing the underlying structure. Temperatures soared to thousands of degrees as Columbia plunged toward Earth at 27 times the speed of sound, said Gallis, who used NASA codes and Icarus for simulations...
SystemModeler 4 is a physical modeling and simulation environment for cyber-physical systems. Using drag-and-drop from a large selection of built-in and expandable modeling libraries, users can build multi-domain models of their complete system.
Altair has announced its intent to acquire Visual Solutions, makers of VisSim, a visual language for mathematical modeling, simulation and model-based embedded system development used by scientists and engineers. The transaction is expected to close by the end of July 2014.
Simulink Real-Time enables engineers to build, test, and run real-time applications from Simulink models on dedicated target computer hardware connected to their physical systems, providing a complete end-to-end real-time simulation and testing solution.
Some 15 percent of adults suffer from fertility problems, many of these due to genetic factors. This is something of a paradox: We might expect such genes, which reduce an individual's ability to reproduce, to disappear from the population. Recent research may have solved the riddle. Not only can it explain the high rates of male fertility problems, it may open new avenues in understanding the causes of genetic diseases and their treatment.
Physicists have created a unique combination of computer models, based on the theory of quantum mechanics, and applied them to a previously well-characterized protein found in muscle to develop a new picture of how biomolecules transport and store oxygen (O2). In doing so, the team has shown how the process of respiration, which is fundamental in humans and other vertebrates, exploits quantum mechanical effects working on tiny scales.
As anybody who has started a campfire by rubbing sticks knows, friction generates heat. Now, computer modeling by NASA scientists shows that friction could be the key to survival for some distant Earth-sized planets traveling in dangerous orbits. The findings are consistent with observations that Earth-sized planets appear to be very common in other star systems.
The discovery 30 years ago of soccer-ball-shaped carbon molecules called buckyballs helped to spur an explosion of nanotechnology research. Now, there appears to be a new ball on the pitch. Researchers have shown that a cluster of 40 boron atoms forms a hollow molecular cage similar to a carbon buckyball. It’s the first experimental evidence that a boron cage structure — previously only a matter of speculation — does indeed exist.
In the middle of the 19th century, the massive binary system Eta Carinae underwent an eruption that ejected at least 10 times the sun's mass and made it the second-brightest star in the sky. Now, a team of astronomers has used extensive new observations to create the first high-resolution 3-D model of the expanding cloud produced by this outburst.
A powerful new model to detect life on planets outside of our solar system, more accurately than ever before, has been developed by UCL researchers. The new model focuses on methane, the simplest organic molecule, widely acknowledged to be a sign of potential life.
A new mathematical model could help engineers control the formation of wrinkle, crease, and fold structures in a wide variety of materials. It may also help scientists understand how these structures form in nature.
Theoretical physicists at Saarland University have developed a method that enables quantum computers to be powered up and running stably in just five minutes – something that took six hours to achieve previously. This huge time reduction has been achieved by making use of mathematical models.
HPC Innovation Excellence Award: Culham Centre for Fusion Energy, EPCC at the University of Edinburgh, York Plasma Institute at the University of York, and Lund UniversityJune 23, 2014 5:36 pm | Award Winners
Researchers from CCFE, EPCC and the Universities of York and Lund have made substantial recent optimizations for the well-known plasma turbulence code, GS2. This included a total rewrite of the routines that calculate the response matrices required by the code's implicit algorithm, which has significantly accelerated GS2’s initialization, typically by a factor over 10.
University of Wisconsin Researchers utilized HPC resources in combination with multiple advanced forms of protein structure prediction algorithms and deep sequence data mining to construct a highly plausible capsid model for Rhinovirus-C (~600,000 atoms). The simulation model helps researchers in explaining why the existing pharmaceuticals don’t work on this virus.
Jets resulting from particle collisions, like those taking place at the Large Hadron Collider (LHC) housed at CERN near Geneva, Switzerland, are quite possibly the single most important experimental signatures in high-energy physics. Virtually every final-state, high-energy particle produced will be part of a jet.
ANSYS an engineering simulation software company, announced that it has acquired SpaceClaim, a provider of fast and intuitive 3-D modeling software for engineers.
Inspired by anomalies that arise in certain mathematical equations, researchers have demonstrated a laser system that paradoxically turns off when more power is added rather than becoming continuously brighter. The finding could lead to new ways to manipulate the interaction of electronics and light, an important tool in modern communications networks and high-speed information processing.
IDC has announced the availability of the first in-depth forecasts for high performance data analysis (HPDA), the fast-growing worldwide market for big data workloads that use high performance computing resources. IDC forecasts that the server market for HPDA will grow rapidly at 23.5 percent compound annual growth rate (CAGR) to reach $2.7 billion in 2018 and the related storage market will expand to about $1.6 billion in the same year
While hybrids and electrics may grab the headlines, the real frontier in fuel economy is the switch to lighter materials. Automakers have been experimenting for decades with lightweighting, as the practice is known, but the effort is gaining urgency with the adoption of tougher fuel efficiency standards. To meet the U.S. government's goal of nearly doubling average fuel economy to 45 mpg by 2025, cars need to lose some serious pounds.
Like a Formula One race car stuck in a traffic jam, HPC hardware performance is frequently hampered by HPC software. This is because some of the most widely used application codes have not been updated for years, if ever, leaving them unable to leverage advances in parallel systems. As hardware power moves toward exascale, the imbalance between hardware and software will only get worse. The problem of updating essential scientific ...
This image from NASA/ESA's Hubble Space Telescope shows galaxy NGC 4485 in the constellation of Canes Venatici (The Hunting Dogs). The galaxy is irregular in shape, but it hasn’t always been so. Part of NGC 4485 has been dragged towards a second galaxy, named NGC 4490 — which lies out of frame to the bottom right of this image.
Scientists may be years away from successfully emulating a human or animal brain for research purposes, but the significant — and perhaps unexpected — ethical challenges such work presents have been outlined in a thought-provoking article in the Journal of Experimental & Theoretical Artificial Intelligence.
The first evidence for massive and abrupt iceberg calving in Antarctica, dating back 19,000 to 9,000 years ago, has now been documented by an international team of geologists and climate scientists. Their findings are based on analysis of new, long deep sea sediment cores extracted from the region...
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