http://www.sciencedaily.com/news/computers_math/computer_modeling/ Computer modeling in engineering, weather modeling, climate modeling, medical modeling and work-related computer simulations. Read the latest research using computer models here. en-us Wed, 15 Feb 2012 18:05:02 EST Wed, 15 Feb 2012 18:05:02 EST 60 http://www.sciencedaily.com/images/logosmall.gif http://www.sciencedaily.com/news/computers_math/computer_modeling/ For more science articles, visit ScienceDaily. http://www.sciencedaily.com/releases/2012/02/120215143105.htm Computer engineers may have just provided the medical community a new way of figuring out exactly how one of the three building blocks of life forms and functions. They have used a complex computer program to analyze RNA motifs – the subunits that make up RNA. Wed, 15 Feb 2012 14:31:31 EST http://www.sciencedaily.com/releases/2012/02/120215143105.htm http://www.sciencedaily.com/releases/2012/02/120215082827.htm Even the most exact construction plan lacks many details and design options. The building owner needs imagination to obtain an idea of the constructed building. Now, new 3D video glasses provide a true representation in virtual reality. With the help of integrated high-resolution motion sensors, the virtual environment adapts to the natural movement of the head in real time. Wed, 15 Feb 2012 08:28:28 EST http://www.sciencedaily.com/releases/2012/02/120215082827.htm http://www.sciencedaily.com/releases/2012/02/120207202803.htm Scientists have developed a "biological computer" made entirely from biomolecules that is capable of deciphering images encrypted on DNA chips. Tue, 07 Feb 2012 20:28:28 EST http://www.sciencedaily.com/releases/2012/02/120207202803.htm http://www.sciencedaily.com/releases/2012/02/120207095531.htm Researchers have developed a new technique that allows graphics processing units (GPUs) and central processing units (CPUs) on a single chip to collaborate – boosting processor performance by an average of more than 20 percent. Tue, 07 Feb 2012 09:55:55 EST http://www.sciencedaily.com/releases/2012/02/120207095531.htm http://www.sciencedaily.com/releases/2012/02/120206092624.htm DNA sequencing to detect genetic mutations can aid in the diagnosis and selection of treatment for cancer. Current methods of testing DNA samples, Sanger sequencing and pyrosequencing, occasionally produce complex results that can be difficult or impossible to interpret. Scientists have now developed a free software program, Pyromaker, that can more accurately identify such complex genetic mutations. Mon, 06 Feb 2012 09:26:26 EST http://www.sciencedaily.com/releases/2012/02/120206092624.htm http://www.sciencedaily.com/releases/2012/02/120202201735.htm 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 prohibitive amounts of data. A new method could change this. In a newly published paper, researchers present a mathematical methodology that uses easily obtainable information to greater effect and can therefore reduce the amount of additional data that needs to be collected. Thu, 02 Feb 2012 20:17:17 EST http://www.sciencedaily.com/releases/2012/02/120202201735.htm http://www.sciencedaily.com/releases/2012/02/120201140004.htm A study that combines experimental observations of spider webs with complex computer simulations has shown that web durability depends not only on silk strength, but on how overall web design compensates for damage and the response of individual strands to continuously varying stresses. Wed, 01 Feb 2012 14:00:00 EST http://www.sciencedaily.com/releases/2012/02/120201140004.htm http://www.sciencedaily.com/releases/2012/02/120201102829.htm The active learning algorithm is faster and more accurate in guessing the age of an individual than conventional algorithms. Wed, 01 Feb 2012 10:28:28 EST http://www.sciencedaily.com/releases/2012/02/120201102829.htm http://www.sciencedaily.com/releases/2012/01/120130093921.htm Scientists have created a new algorithm to detect virtual communities, designed to match the needs of real-life social, biological or information networks detection better than with current attempts. Mon, 30 Jan 2012 09:39:39 EST http://www.sciencedaily.com/releases/2012/01/120130093921.htm http://www.sciencedaily.com/releases/2012/01/120126224513.htm Scientists have developed a novel computer model describing how future hurricanes and sea level rise may trigger changes to South Florida's native coastal forests. Thu, 26 Jan 2012 22:45:45 EST http://www.sciencedaily.com/releases/2012/01/120126224513.htm http://www.sciencedaily.com/releases/2012/01/120125172312.htm NBA players may be too conservative with their shots, according to a comparison with a theoretical model describing shot selection. Wed, 25 Jan 2012 17:23:23 EST http://www.sciencedaily.com/releases/2012/01/120125172312.htm http://www.sciencedaily.com/releases/2012/01/120125151511.htm A quantum computer based on quantum particles instead of classical bits, can in principle outperform any classical computer. However, it still remains an open question, how fast and how efficient quantum computers really may be able to work. A critical limitation will be given by the velocity with which a quantum signal can spread within a processing unit. For the first time, a group of physicists has succeeded in observing such a process in a solid-state like system. Wed, 25 Jan 2012 15:15:15 EST http://www.sciencedaily.com/releases/2012/01/120125151511.htm http://www.sciencedaily.com/releases/2012/01/120122104630.htm The prevalence of computer networks for sharing resources places increasingly high requirements on the reliability of data centers. The simplest way to diagnose abnormalities in these systems is to monitor the output of each component but this is not always effective. Sun, 22 Jan 2012 10:46:46 EST http://www.sciencedaily.com/releases/2012/01/120122104630.htm http://www.sciencedaily.com/releases/2012/01/120119143326.htm Researchers have succeeded in combining the power of quantum computing with the security of quantum cryptography and have shown that perfectly secure cloud computing can be achieved using the principles of quantum mechanics. They have performed an experimental demonstration of quantum computation in which the input, the data processing, and the output remain unknown to the quantum computer. Thu, 19 Jan 2012 14:33:33 EST http://www.sciencedaily.com/releases/2012/01/120119143326.htm http://www.sciencedaily.com/releases/2012/01/120118173240.htm For some time, researchers have explored flammable ice for low-carbon or alternative fuel or as a place to store carbon dioxide. Now, a computer analysis of the ice and gas compound, known as a gas hydrate, reveals key details of its structure. The results show that hydrates can hold hydrogen at an optimal capacity of 5 weight-percent, a value that meets the goal of a U.S. Department of Energy standard and makes gas hydrates practical and affordable. Wed, 18 Jan 2012 17:32:32 EST http://www.sciencedaily.com/releases/2012/01/120118173240.htm http://www.sciencedaily.com/releases/2012/01/120118101415.htm Norwegian researchers have borrowed a page from game developers to devise simulation technology that can save lives in many parts of the world by helping to reduce the damage from catastrophic floods. Wed, 18 Jan 2012 10:14:14 EST http://www.sciencedaily.com/releases/2012/01/120118101415.htm http://www.sciencedaily.com/releases/2012/01/120112142237.htm Using several massive supercomputers, a team of physicists has split a simulated electron perfectly in half. The results are another example of how tabletop experiments on ultra-cold atoms and other condensed-matter materials can provide clues about the behavior of fundamental particles. Thu, 12 Jan 2012 14:22:22 EST http://www.sciencedaily.com/releases/2012/01/120112142237.htm http://www.sciencedaily.com/releases/2012/01/120111103902.htm Firefighters often put their lives at risk during operations, so it is essential they have reliable tools to help them do their job. Now, a modular simulation kit is set to help develop new information and communication technologies -- and ensure they are tailored to firefighters' needs from the outset. Wed, 11 Jan 2012 10:39:39 EST http://www.sciencedaily.com/releases/2012/01/120111103902.htm http://www.sciencedaily.com/releases/2012/01/120104134806.htm Saturn's largest moon, Titan, is an alien world covered in a thick atmosphere with abundant methane. Titan boasts methane clouds and fog, as well as rainstorms and plentiful lakes of liquid methane. The origins of many of these features, however, remain puzzling to scientists. Now, researchers have developed a computer model of Titan's atmosphere and methane cycle that, for the first time, explains many of these phenomena in a relatively simple and coherent way. Wed, 04 Jan 2012 13:48:48 EST http://www.sciencedaily.com/releases/2012/01/120104134806.htm http://www.sciencedaily.com/releases/2011/12/111223091502.htm Microscopic spheres form strings in surprising alignments when suspended in a viscous fluid and sheared between two plates, a finding that will affect the way scientists think about the properties of such wide-ranging substances as shampoo and futuristic computer chips. Fri, 23 Dec 2011 09:15:15 EST http://www.sciencedaily.com/releases/2011/12/111223091502.htm http://www.sciencedaily.com/releases/2011/12/111222152014.htm Researchers have created a new type of optical device small enough to fit millions on a computer chip that could lead to faster, more powerful information processing and supercomputers. Thu, 22 Dec 2011 15:20:20 EST http://www.sciencedaily.com/releases/2011/12/111222152014.htm http://www.sciencedaily.com/releases/2011/12/111221105826.htm A new draft computer security publication provides guidance for vendors and security professionals as they work to protect personal computers as they start up. Wed, 21 Dec 2011 10:58:58 EST http://www.sciencedaily.com/releases/2011/12/111221105826.htm http://www.sciencedaily.com/releases/2011/12/111221105738.htm Virginia Tech crashed the supercomputing arena in 2003 with System X, a machine that placed the university among the world's top computational research facilities. Now comes HokieSpeed, a new supercomputer that is up to 22 times faster and yet a quarter of the size of X. As researchers from around the world have used System X to crack riddles of the blood system and further DNA research, HokieSpeed will be a next-generation research tool for engineers, scientists, and others. Wed, 21 Dec 2011 10:57:57 EST http://www.sciencedaily.com/releases/2011/12/111221105738.htm http://www.sciencedaily.com/releases/2011/12/111221091922.htm A question confronting neuroscientists and computer vision researchers alike is how objects can be identified by simply "looking" at an image. But teaching a computer to "know" what it's looking at is far harder. Scientists have now modeled human brain structure to develop better programming approaches for computer object identification. Wed, 21 Dec 2011 09:19:19 EST http://www.sciencedaily.com/releases/2011/12/111221091922.htm http://www.sciencedaily.com/releases/2011/12/111215141611.htm Researchers have developed a tool that can tackle large data sets in a way that no other software program can. Part of a suite of statistical tools called MINE, it can tease out multiple patterns hidden in health information, statistics amassed from a season of major league baseball, data on the changing bacterial landscape of the gut, and more. Thu, 15 Dec 2011 14:16:16 EST http://www.sciencedaily.com/releases/2011/12/111215141611.htm http://www.sciencedaily.com/releases/2011/12/111215095454.htm New encryption research may lead to improved data security, even for operations performed on remote servers. Thu, 15 Dec 2011 09:54:54 EST http://www.sciencedaily.com/releases/2011/12/111215095454.htm http://www.sciencedaily.com/releases/2011/12/111212153123.htm A major study of recent international data on school mathematics performance casts doubt on some common assumptions about gender and math achievement -- in particular, the idea that girls and women have less ability due to a difference in biology. Mon, 12 Dec 2011 15:31:31 EST http://www.sciencedaily.com/releases/2011/12/111212153123.htm http://www.sciencedaily.com/releases/2011/12/111211134004.htm A multi-purpose optical chip which generates, manipulates and measures entanglement and mixture -- two quantum phenomena which are essential driving forces for tomorrow's quantum computers -- has now been developed. This work represents an important step forward in the race to develop a quantum computer. Sun, 11 Dec 2011 13:40:40 EST http://www.sciencedaily.com/releases/2011/12/111211134004.htm http://www.sciencedaily.com/releases/2011/12/111207000849.htm Supercomputer simulations are giving scientists unprecedented access to a key class of proteins involved in drug detoxification. Wed, 07 Dec 2011 00:08:08 EST http://www.sciencedaily.com/releases/2011/12/111207000849.htm http://www.sciencedaily.com/releases/2011/12/111206151536.htm Researchers have created a new type of transistor made from a material that could replace silicon and have a 3-D structure instead of conventional flat computer chips. Tue, 06 Dec 2011 15:15:15 EST http://www.sciencedaily.com/releases/2011/12/111206151536.htm http://www.sciencedaily.com/releases/2011/12/111206151526.htm Computer scientists who set out to simulate all rainbows found in nature, wound up answering questions about the physics of rainbows as well. The scientists recreated a wide variety of rainbows by using an improved method for simulating how light interacts with water drops of various shapes and sizes. Their new approach even yielded realistic simulations of difficult-to-replicate "twinned" rainbows that split their primary bow in two. Tue, 06 Dec 2011 15:15:15 EST http://www.sciencedaily.com/releases/2011/12/111206151526.htm http://www.sciencedaily.com/releases/2011/12/111206115246.htm Computers can mimic the human ability to find visually similar images, such as photographs of a fountain in summer and in winter, or a photograph and a painting of the same cathedral, by using a technique that analyzes the uniqueness of images, say researchers. The research team found that their surprisingly simple technique performed well on a number of visual tasks that normally stump computers, including matching sketches of automobiles with photographs of cars. Tue, 06 Dec 2011 11:52:52 EST http://www.sciencedaily.com/releases/2011/12/111206115246.htm http://www.sciencedaily.com/releases/2011/12/111206082752.htm Scientists have shown the energy conditions, under which a weak signal supplied to a physical system emerges as a stronger signal at the output thanks to the presence of random noise (a process known as stochastic resonance). Tue, 06 Dec 2011 08:27:27 EST http://www.sciencedaily.com/releases/2011/12/111206082752.htm http://www.sciencedaily.com/releases/2011/12/111205082301.htm A sign-up interface for Facebook apps could help members prevent personal information -- and their friends' information -- from leaking out through third-party games and apps to hackers and identity thieves. Mon, 05 Dec 2011 08:23:23 EST http://www.sciencedaily.com/releases/2011/12/111205082301.htm http://www.sciencedaily.com/releases/2011/12/111204144700.htm Life scientists have produced the most comprehensive mathematical model ever devised to track the health of populations exposed to environmental change. Sun, 04 Dec 2011 14:47:47 EST http://www.sciencedaily.com/releases/2011/12/111204144700.htm http://www.sciencedaily.com/releases/2011/12/111201174202.htm In many fields of applied science, such as geology, there are often tensions and disagreements between scientists who specialize in analyses of problems using mathematical models to describe sets of collected data, and those that rely on on-the-ground observations and empirical analyses. Thu, 01 Dec 2011 17:42:42 EST http://www.sciencedaily.com/releases/2011/12/111201174202.htm http://www.sciencedaily.com/releases/2011/12/111201094802.htm As sophisticated as modern climate models are, one critical component continues to elude their precision -- clouds. Clouds modulate the climate. Experts agree that getting their effect on the climate system correct is critical to increasing confidence in projections of future climate change. To build the breakthrough supercomputers that these researchers need, computer scientists are taking a cue from the world of consumer electronics. Thu, 01 Dec 2011 09:48:48 EST http://www.sciencedaily.com/releases/2011/12/111201094802.htm http://www.sciencedaily.com/releases/2011/11/111130100228.htm Some smartphones specifically designed to support the Android mobile platform have incorporated additional features that can be used by hackers to bypass Android's security features, making them more vulnerable to attack. Android has the largest share of the smartphone market in the US. Wed, 30 Nov 2011 10:02:02 EST http://www.sciencedaily.com/releases/2011/11/111130100228.htm http://www.sciencedaily.com/releases/2011/11/111129092415.htm Newly developed computer software combined with magnetic resonance imaging of a fetus may help physicians better assess a woman's potential for a difficult childbirth. Tue, 29 Nov 2011 09:24:24 EST http://www.sciencedaily.com/releases/2011/11/111129092415.htm http://www.sciencedaily.com/releases/2011/11/111122112020.htm The Kilobots are coming. Computer scientists and engineers have developed and licensed technology that will make it easy to test collective algorithms on hundreds, or even thousands, of tiny robots. Tue, 22 Nov 2011 11:20:20 EST http://www.sciencedaily.com/releases/2011/11/111122112020.htm http://www.sciencedaily.com/releases/2011/11/111121194037.htm Scientists have designed a first draft of a mathematical model that someday could guide treatment decisions for advanced prostate cancer, in part by helping doctors predict how individual patients will respond to therapy based on the biology of their tumors. These decisions would apply to treatment of cancer that has already spread beyond the prostate gland or that has recurred after initial treatments, such as surgery or radiation. Mon, 21 Nov 2011 19:40:40 EST http://www.sciencedaily.com/releases/2011/11/111121194037.htm http://www.sciencedaily.com/releases/2011/11/111121151554.htm Traditionally, fossil-hunters often could only make educated guesses as to where fossils lie. The rest lay with chance. But thanks to a new software model, fossil-hunters' reliance on luck when finding fossils may be diminishing. Using artificial neural networks, researchers developed a computer model that can pinpoint productive fossil sites. Mon, 21 Nov 2011 15:15:15 EST http://www.sciencedaily.com/releases/2011/11/111121151554.htm http://www.sciencedaily.com/releases/2011/11/111117144043.htm Scientists have now discovered how bacteria collectively gather information to learn about their environment and find an optimal path to growth. This research will allow scientists to design a new generation of "smart robots" that can form intelligent swarms and aid in the development of medical micro-robots used to treat diseases in the human body. Thu, 17 Nov 2011 14:40:40 EST http://www.sciencedaily.com/releases/2011/11/111117144043.htm http://www.sciencedaily.com/releases/2011/11/111116081751.htm RIKEN, the University of Tsukuba, and Fujitsu Limited have announced that they received top-ranking in all four benchmarks for the performance results of the "K computer" at the 2011 HPC Challenge Awards. Wed, 16 Nov 2011 08:17:17 EST http://www.sciencedaily.com/releases/2011/11/111116081751.htm http://www.sciencedaily.com/releases/2011/11/111115103518.htm For decades, scientists have dreamed of building computer systems that could replicate the human brain's talent for learning new tasks. Researchers have now taken a major step toward that goal by designing a computer chip that mimics how the brain's neurons adapt in response to new information. This phenomenon, known as plasticity, is believed to underlie many brain functions, including learning and memory. Tue, 15 Nov 2011 10:35:35 EST http://www.sciencedaily.com/releases/2011/11/111115103518.htm http://www.sciencedaily.com/releases/2011/11/111110094844.htm Copper's days are numbered, and a new study could hasten the downfall of the ubiquitous metal in smart phones, tablet computers, and nearly all electronics. This is good news for technophiles who are seeking smaller, faster devices. Researchers have discovered that they could enhance the ability of graphene to transmit electricity by stacking several thin graphene ribbons on top of one another. Thu, 10 Nov 2011 09:48:48 EST http://www.sciencedaily.com/releases/2011/11/111110094844.htm http://www.sciencedaily.com/releases/2011/11/111109143011.htm Computer scientists and pathologists are training computers to analyze breast cancer microscopic images. The computer analysis were more accurate than those conducted by humans. Wed, 09 Nov 2011 14:30:30 EST http://www.sciencedaily.com/releases/2011/11/111109143011.htm http://www.sciencedaily.com/releases/2011/11/111109125745.htm People attempting to lose weight won't need to track their daily food intake anymore, thanks to a wearable, picture-taking device. eButton -- a device worn on the chest (like a pin) that contains a miniature camera, accelerometer, GPS, and other sensors -- captures data and information of health activities, eliminating the need for daily self-reporting. Wed, 09 Nov 2011 12:57:57 EST http://www.sciencedaily.com/releases/2011/11/111109125745.htm http://www.sciencedaily.com/releases/2011/11/111109115651.htm The brain likes stereotypes -- at least for movements. Simple actions are most often performed in the same manner. A mathematical model explains why this is the case and could be used to generate more natural robot movements and to adapt prosthetic movements. Wed, 09 Nov 2011 11:56:56 EST http://www.sciencedaily.com/releases/2011/11/111109115651.htm http://www.sciencedaily.com/releases/2011/11/111108201552.htm Galaxy -- an open-source, web-based platform for data-intensive biomedical and genetic research -- is now available as a "cloud computing" resource. The new technology will help scientists and biomedical researchers to harness such tools as DNA-sequencing and analysis software, as well as storage capacity for large quantities of scientific data. Tue, 08 Nov 2011 20:15:15 EST http://www.sciencedaily.com/releases/2011/11/111108201552.htm http://www.sciencedaily.com/releases/2011/11/111107162736.htm A web-based computer-tailored intervention aiming to increase physical activity, decrease sedentary behavior, and promote healthy eating among adolescents was not associated with positive long-term outcome measures, but may have positive short-term effects on eating behaviors, according to a new report. Mon, 07 Nov 2011 16:27:27 EST http://www.sciencedaily.com/releases/2011/11/111107162736.htm http://www.sciencedaily.com/releases/2011/11/111106151459.htm Whether a species can evolve to survive climate change may depend on the biodiversity of its ecological community, according to a new mathematical model that simulates the effect of climate change on plants and pollinators. Sun, 06 Nov 2011 15:14:14 EST http://www.sciencedaily.com/releases/2011/11/111106151459.htm http://www.sciencedaily.com/releases/2011/11/111103081338.htm The European TRAMS (terascale reliable adaptive memory systems) consortium investigates the impact of statistical NanoCMOS variability on terascale embedded static random-access memories (SRAMs) based on sub-16 nm technology generation using conventional and novel complementary metal-oxide semiconductor (CMOS) devices. Thu, 03 Nov 2011 08:13:13 EDT http://www.sciencedaily.com/releases/2011/11/111103081338.htm http://www.sciencedaily.com/releases/2011/11/111101171040.htm If keeping a food diary seems like too much effort, despair not: Computer scientists ahave devised a tool that lets you snap a photo of your meal and let the crowd do the rest. PlateMate's calorie estimates have proved, in tests, to be just as accurate as those of trained nutritionists, and more accurate than the user's own logs. Tue, 01 Nov 2011 17:10:10 EDT http://www.sciencedaily.com/releases/2011/11/111101171040.htm http://www.sciencedaily.com/releases/2011/10/111031220609.htm From the dotcom bust in the late nineties to the housing crash in the run-up to the 2008 crisis, financial bubbles have been a topic of major concern. Identifying bubbles is important in order to prevent collapses that can severely impact nations and economies. A mathematical model has now been proposed for the detection of financial bubbles in order to prevent their collapse. Mon, 31 Oct 2011 22:06:06 EDT http://www.sciencedaily.com/releases/2011/10/111031220609.htm http://www.sciencedaily.com/releases/2011/10/111028142510.htm The merging of two technologies under development -- plasmonics and nanophotonics -- is promising the emergence of new "quantum information systems" far more powerful than today's computers. Fri, 28 Oct 2011 14:25:25 EDT http://www.sciencedaily.com/releases/2011/10/111028142510.htm http://www.sciencedaily.com/releases/2011/10/111028103730.htm Engineers have developed an open source software package called OpenSim that accurately models human movement. OpenSim is free and in use across the world helping scientists understand the complex forces of movement to improve diagnosis of physical disabilities and prevent harmful wear and tear. Fri, 28 Oct 2011 10:37:37 EDT http://www.sciencedaily.com/releases/2011/10/111028103730.htm http://www.sciencedaily.com/releases/2011/10/111028103217.htm A milestone in the description of complex processes -- for example the ups and downs of share prices -- has been reached by mathematicians. Researchers have developed a new method in spectral analysis, which allows a classical mathematical model assumption, so-called stationarity, to be precisely measured and determined for the first time. The approach also makes it possible to construct statistical tests that are considerably better and more accurate than previous methods. Fri, 28 Oct 2011 10:32:32 EDT http://www.sciencedaily.com/releases/2011/10/111028103217.htm http://www.sciencedaily.com/releases/2011/10/111027163117.htm Managing light to carry computer data, such as text, audio and video, is possible today with laser light beams that are guided along a fiber-optic cable. These waves consist of countless billions of photons, which carry information down the fiber across continents. A research team wants to refine the optical transmission of information by using a single photon, the fundamental building block of light that can allow unprecedented applications in optical information transfer. Thu, 27 Oct 2011 16:31:31 EDT http://www.sciencedaily.com/releases/2011/10/111027163117.htm http://www.sciencedaily.com/releases/2011/10/111027145902.htm A team of computer scientists, physicists, and physicians has developed a simple yet powerful method of visualizing human arteries that may result in more accurate diagnoses of atherosclerosis and heart disease. The prototype tool, called "HemoVis," creates a 2D diagram of arteries that performs better than the traditional 3D, rainbow-colored model. In a clinical setting, the tool has been shown to increase diagnostic accuracy from 39% to 91%. Thu, 27 Oct 2011 14:59:59 EDT http://www.sciencedaily.com/releases/2011/10/111027145902.htm