News tagged with computer model

A better picture of clouds

Some of us look at clouds and see animal shapes. Scientists are looking beyond. For the first time, a team of scientists led by Pacific Northwest National Laboratory used actual measurements of clouds and ...

Space & Earth / Earth Sciences

created 15 hours ago | popularity not rated yet | comments 0

Advanced power-grid model finds low-cost, low-carbon future in West

(PhysOrg.com) -- The least expensive way for the Western U.S. to reduce greenhouse gas emissions enough to help prevent the worst consequences of global warming is to replace coal with renewable and other ...

Technology / Energy & Green Tech

created Feb 10, 2012 | popularity 4.3 / 5 (9) | comments 19 | with audio podcast

4.5 million Americans living with total knee replacement

New research presented at the 2012 Annual Meeting of the American Academy of Orthopaedic Surgeons (AAOS) found that more than 4.5 million Americans are living with a total knee replacement (TKR), as the number of TKR surgeries ...

Medicine & Health / Other

created Feb 10, 2012 | popularity not rated yet | comments 0

2C warming goal now 'optimistic' - French scientists

French scientists unveiling new estimates for global warming said on Thursday the 2 C (3.6 F) goal enshrined by the United Nations was "the most optimistic" scenario left for greenhouse-gas emissions.

Space & Earth / Environment

created Feb 09, 2012 | popularity 4.3 / 5 (6) | comments 0

Physics research suggests new pathways for cancer progression

Observing that certain cancer cells may exhibit greater flexibility than normal cells, some scientists believe that this capability promotes rapid tumor growth. Now computer simulations developed by Boston University Biomedical ...

Physics / General Physics

created Feb 09, 2012 | popularity 5 / 5 (1) | comments 0

Report on Texas fire urges firefighters to consider wind effects

(PhysOrg.com) -- Wind conditions at a fire scene can make a critical difference on the behavior of the blaze and the safety of firefighters, even indoors, according to a new report by the National Institute of Standards and ...

Technology / Other

created Feb 08, 2012 | popularity not rated yet | comments 0

Parkinson's disease: Study of live human neurons reveals the disease's genetic origins

Parkinson's disease researchers at the University at Buffalo have discovered how mutations in the parkin gene cause the disease, which afflicts at least 500,000 Americans and for which there is no cure.

Medicine & Health / Genetics

created Feb 07, 2012 | popularity 5 / 5 (4) | comments 1 | with audio podcast

Why the middle finger has such a slow connection

Each part of the body has its own nerve cell area in the brain -- we therefore have a map of our bodies in our heads. The functional significance of these maps is largely unclear. What effects they can have is now shown by ...

Medicine & Health / Neuroscience

created Feb 07, 2012 | popularity 4.5 / 5 (2) | comments 1

Predicting system crashes in nature and society

The world can deliver sudden and nasty shocks. Economies can crash, fisheries can collapse, and climates can pass tipping points. Providing early warning of such changes currently requires the collection of enormous and often ...

Biology / Ecology

created Feb 02, 2012 | popularity 4 / 5 (4) | comments 0

Climate-driven heat peaks may shrink wheat crops

More intense heat waves due to global warming could diminish wheat crop yields around the world through premature ageing, according to a study published Sunday in Nature Climate Change.

Space & Earth / Environment

created Jan 29, 2012 | popularity 3.9 / 5 (14) | comments 22

Living on the edge: An innovative model of mangrove-hammock boundaries in Florida

The key to understanding how future hurricanes and sea level rise may trigger changes to South Florida's native coastal forests lurks below the surface, according to a new model linking coastal forests to groundwater. Just ...

Space & Earth / Environment

created Jan 26, 2012 | popularity 5 / 5 (1) | comments 0

Researchers model potential of toxic algae photoreceptors

Blue-green algae is causing havoc in Midwestern lakes saturated with agricultural run-off, but researchers in a northwest Ohio lab are using supercomputers to study a closely related strain of the toxic cyanobacteria ...

Chemistry / Biochemistry

created Jan 26, 2012 | popularity not rated yet | comments 0 | with audio podcast

Researchers develop computer model that can predict cholera outbreaks 11 months in advance

(Medical Xpress) -- A new University of Michigan computer model of disease transmission in space and time can predict cholera outbreaks in Bangladesh up to 11 months in advance, providing an early warning ...

Medicine & Health / Diseases

created Jan 24, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Researchers meet to refine carbon budget for US East Coast

A group of 35 researchers from institutions all along the eastern seaboard gathered at the Virginia Institute of Marine Science last week to further integrate and refine field measurements and computer models ...

Space & Earth / Environment

created Jan 23, 2012 | popularity not rated yet | comments 0

From field to biorefinery: Computer model optimizes biofuel operations

Research into biofuel crops such as switchgrass and Miscanthus has focused mainly on how to grow these crops and convert them into fuels. But many steps lead from the farm to the biorefinery, and each could ...

Technology / Computer Sciences

created Jan 17, 2012 | popularity 3.7 / 5 (3) | comments 1 | with audio podcast

Computer simulation

A computer simulation, a computer model or a computational model is a computer program, or network of computers, that attempts to simulate an abstract model of a particular system. Computer simulations have become a useful part of mathematical modeling of many natural systems in physics (computational physics), chemistry and biology, human systems in economics, psychology, and social science and in the process of engineering new technology, to gain insight into the operation of those systems, or to observe their behavior.

Computer simulations vary from computer programs that run a few minutes, to network-based groups of computers running for hours, to ongoing simulations that run for days. The scale of events being simulated by computer simulations has far exceeded anything possible (or perhaps even imaginable) using the traditional paper-and-pencil mathematical modeling: over 10 years ago, a desert-battle simulation, of one force invading another, involved the modeling of 66,239 tanks, trucks and other vehicles on simulated terrain around Kuwait, using multiple supercomputers in the DoD High Performance Computer Modernization Program; a 1-billion-atom model of material deformation (2002); a 2.64-million-atom model of the complex maker of protein in all organisms, a ribosome, in 2005; and the Blue Brain project at EPFL (Switzerland), began in May 2005, to create the first computer simulation of the entire human brain, right down to the molecular level.

For more information about Computer simulation, read the full article at Wikipedia.
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