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Maplesoft, JSOL partner to combine powerful modeling techniques

June 21, 2013 9:08 am | News | Comments

JMAG is a powerful finite element analysis (FEA) tool that allows engineers to develop, analyze, and fine-tune electric motors and generators, taking into account such diverse factors as thermal, structural, and vibration issues.  This week, Maplesoft has launched a new product that allows users to combine JMAG with the advanced physical modeling approach of MapleSim.  This allows engineers to produce high-fidelity system models.

Swiss Army CFD

June 6, 2013 12:31 pm | by Paul Livingstone and Kerem Karakoc, Mechanical Designer, and Eric Chen, Structural Engineer, Kawa Engineering Ltd. | Articles | Comments

The first successful modeling of fluid and gas flows was accomplished by the aerospace industry, which recognized the advantages such understanding could have for successful aircraft design. Now, the once exotic application of Navier-Stokes equations for the modeling of flows is performed on just about anything, from the world’s largest hydropower plant to a mundane rear-view mirror on a car.

Wit, grit, and a supercomputer yield chemical structure of HIV capsid

May 29, 2013 5:43 pm | News | Comments

Researchers report that they have determined the precise chemical structure of the HIV capsid, a protein shell that protects the virus’s genetic material and is a key to its virulence. The capsid has become an attractive target for the development of new antiretroviral drugs. The researchers used the University of Illinois’ supercomputer Blue Waters to determine the complete HIV capsid structure.

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Researchers explain magnetic field misbehavior in solar flares

May 23, 2013 8:39 am | News | Comments

When a solar flare filled with charged particles erupts from the sun, its magnetic fields sometimes break a widely accepted rule of physics. The flux-freezing theorem dictates that the magnetic lines of force should flow away in lock-step with the particles, whole and unbroken. Instead, the lines sometimes break apart and quickly reconnect in a way that has mystified astrophysicists.

Nano-breakthrough: Solving the case of the herringbone crystal

May 13, 2013 7:54 am | News | Comments

Leading nanoscientists created beautiful, tiled patterns with flat nanocrystals, but they were left with a mystery: Why did some sets of crystals arrange themselves in an alternating, herringbone style? To find out, they turned to experts in computer simulation at the University of Michigan and the Massachusetts Institute of Technology.

Computer scientists suggest new spin on origins of evolvability

April 29, 2013 8:53 am | News | Comments

Scientists have long observed that species seem to have become increasingly capable of evolving in response to changes in the environment. But computer science researchers now say that the popular explanation of competition to survive in nature may not actually be necessary for evolvability to increase.

Scientists discover new materials to capture methane

April 16, 2013 12:52 pm | News | Comments

Scientists at Lawrence Livermore National Laboratory and the University of California, Berkeley have discovered new materials to capture methane, the second highest concentration greenhouse gas emitted into the atmosphere. The research team performed systematic computer simulation studies on the effectiveness of methane capture using two different materials—liquid solvents and nanoporous zeolites.

Team achieves petaflop-level earthquake simulations

April 3, 2013 9:29 am | News | Comments

A team of researchers at the San Diego Supercomputer Center (SDSC) and the University of California, San Diego, has developed a highly scalable computer code that promises to dramatically cut both research times and energy costs in simulating seismic hazards throughout California and elsewhere. The accelerated makes heavier use of graphic processing units (GPUs) than CPUs.

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Blue Waters open for research

April 2, 2013 1:09 pm | News | Comments

One of the most powerful supercomputers in the world, was recently declared available for use at the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign (UIUC). Capable at peak performance of nearly 12 quadrillion floating point operations per second, Blue Waters has, more importantly, demonstrated sustained system performance of more than one petaflop on a range of commonly-used science and engineering applications.

Simulations uncover obstacle to harnessing laser-driven fusion

March 27, 2013 7:50 am | News | Comments

A once-promising approach for using next-generation, ultra-intense lasers to help deliver commercially viable fusion energy has been brought into serious question by new experimental results and first-of-a-kind simulations of laser-plasma interaction. So-called fast ignition, this process involves a long-discussed possibility of using a hollow cone to help focus laser energy on the pellet core to induce fusion. Unfortunately, these cones appear to fail in that mission.

Computer simulations yields clues to cell interactions

March 22, 2013 2:20 pm | News | Comments

Cell interact with their surroundings using proteins called integrin, which reside in a cell’s outer plasma membrane. Despite their importance—good and bad—scientists don’t exactly know how integrins work. Scientists have yet to obtain the entire crystal structure of integrin within the plasma membrane, so a computer model of integrin that reveals its molecular dynamics has been developed by Lawrence Berkeley National Laboratory researchers.

Computer models show how deep carbon could return to Earth's surface

March 21, 2013 9:17 am | News | Comments

Computer simulations of water under extreme pressure are helping geochemists understand how carbon might be recycled from hundreds of miles below the Earth's surface. Carbon compounds are the basis of life, provide most of our fuels and contribute to climate change. The cycling of carbon through the oceans, atmosphere, and shallow crust of the Earth has been intensively studied, but little is known about what happens to carbon deep in the Earth.

Sequoia supercomputer sets simulation record

March 19, 2013 4:09 pm | News | Comments

Researchers at Lawrence Livermore National Laboratory have recently performed a record number of simulations using all 1,572,864 cores of Sequoia, the largest supercomputer in the world. The simulations are the largest particle-in-cell (PIC) code simulations by number of cores ever performed. PIC simulations are used extensively in plasma physics to model the motion of the charged particles

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Mechdyne licenses CAVE2 from University of Illinois at Chicago

March 12, 2013 9:27 am | News | Comments

Mechdyne Corporation has recently announced that it has licensed the CAVE2 hybrid reality environment developed by the Electronic Visualization Laboratory at University of Illinois at Chicago. The licensing agreement was signed in January of 2013, and continues the strong working relationship that began in 1994 when Mechdyne licensed the EVL-designed original CAVE technology. 

An atlas of the human heart is drawn using statistics

February 26, 2013 10:17 am | News | Comments

Researchers at Pompeu Fabra University (Spain) have created a high resolution atlas of the heart with 3D images taken from 138 people. The study demonstrates that an average image of an organ along with its variations can be obtained for the purposes of comparing individual cases and differentiating healthy forms from pathologies.

Supercomputers journey to limits of spacetime

February 21, 2013 1:19 pm | News | Comments

Researchers have used the 3D simulation capabilities of the supercomputers at the Texas Advanced Computing Center to predict the formation of accretion disks and relativistic jets that warp and bend more than previously thought, shaped both by the extreme gravity of the black hole and by powerful magnetic forces generated by its spin. Their highly detailed models of the black hole environment contribute new knowledge to the field.

Future science: Using 3D worlds to visualize data

February 20, 2013 4:29 am | by CARLA K. JOHNSON - AP Medical Writer - Associated Press | News | Comments

Take a walk through a human brain? Fly over the surface of Mars? Computer scientists at the University of Illinois at Chicago are pushing science fiction closer to reality with a wraparound virtual world where a researcher wearing 3D glasses can do all that and more. In the system, known as CAVE2, a 8-foot-high screen encircles the viewer 320 degrees. A panorama of images springs from 72 stereoscopic liquid crystal display panels, conveying a dizzying sense of being able to touch what's not really there.

New initiative to improve lithium-ion batteries

February 12, 2013 10:23 am | News | Comments

A Lawrence Livermore National Laboratory team is working to improve lithium-ion battery performance, lifetime, and safety. Working with Lawrence Berkeley National Laboratory, the scientists are developing a new methodology for performing first-principles quantum molecular dynamics simulations at an unprecedented scale to understand key aspects of the chemistry and dynamics in lithium-ion batteries, particularly at interfaces.

New modeling approach transforms imaging technologies

February 5, 2013 12:09 pm | by Emil Venere, Purdue University | News | Comments

Researchers are improving the performance of technologies ranging from medical computed tomography scanners to digital cameras using a system of models to extract specific information from huge collections of data and then reconstructing images like a jigsaw puzzle. The new approach is called model-based iterative reconstruction, or MBIR, and it is helping to greatly reduce the noise in data, providing great clarity at lower radiation intensities.

Winners of annual NSF visualization competition announced

February 1, 2013 12:03 pm | News | Comments

The National Science Foundation (NSF), along with the journal Science, this week announced the 53 winners and honorable mentions of the International Science & Technology Visualization Challenge, a contest jointly sponsored by NSF and the joournal Science. The winning entries highlight the often stunning capabilities of computer-aided visualization techniques.

Simulating more efficient solar cells

January 28, 2013 1:50 pm | News | Comments

Using an exotic form of silicon could substantially improve the efficiency of solar cells, according to computer simulations by researchers at the University of California, Davis and in Hungary.  Solar cells are based on the photoelectric effect: A photon, or particle of light, hits a silicon crystal and generates a negatively charged electron and a positively charged hole. Collecting those electron-hole pairs generates electric current. Conventional solar cells generate one electron-hole pair per incoming photon, and have a theoretical maximum efficiency of 33%. One exciting new route to improved efficiency is to generate more than one electron-hole pair per photon.

Researchers break million-core supercomputer barrier

January 28, 2013 10:18 am | by Andrew Myers, Stanford University | News | Comments

Stanford Engineering's Center for Turbulence Research has set a new record in computational science by successfully using a supercomputer with more than one million computing cores to solve a complex fluid dynamics problem—the prediction of noise generated by a supersonic jet engine.

“Quadruple helix” DNA structure proven to exist in human cells

January 21, 2013 8:53 am | News | Comments

Marking the culmination of over 10 years of investigation by scientists to show—in vivo—that complex four-stranded structures exist in the human genome alongside Watson and Crick’s famous double helix, researchers in the U.K. have recently published a paper that goes on to show clear links between concentrations of four-stranded quadruplexes and the process of DNA replication, which is pivotal to cell division and production.

Study reveals extraordinary glass properties

January 7, 2013 7:41 am | News | Comments

Armed with a better understanding of how glasses age and evolve, researchers at the University of Chicago and the University of Wisconsin-Madison raise the possibility of designing a new class of materials at the molecular level via a vapor-deposition process.

How computers push on the molecules they simulate

January 3, 2013 10:15 am | News | Comments

Computer simulations are essential to test theories and explore what's inaccessible to direct experiment. Digital computers can't use exact, continuous equations of motion and have to slice time into chunks, so persistent errors are introduced in the form of "shadow work" that distorts the result. Scientists have learned to separate the physically realistic aspects of the simulation from the artifacts of the computer method.

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