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Home > News > Tags > computer models
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Stories about: computer models |
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Supernova events are some of the most energetic and powerful things that can go on in the Universe. When massive stars that reach the end of their burning cycle explode, they produce such fierce radiation emission and effects, that they briefly outshine entire galaxies. The death of such stars is called a supernova, ... |
3 June 2010
05:17 GMT |
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Scientists announce the development of a new computer algorithm that is capable of classifying galaxies depending on their shape and size. The system works in a manner very similar to that of the human brain, from which it draws its inspiration. Such an accomplishment is tremendously important for the field of astron... |
2 June 2010
02:53 GMT |
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Carnivores are usually at the top of the food chain in the world's ecosystems, but counting them can be difficult at times. Censuses need to be carried out nonetheless, in order for conservation experts to be able to draw meaningful conclusions about the health of particular species. This is important in the cas... |
31 May 2010
05:57 GMT |
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One of the most well-known traits of Dutch painter and etcher Rembrandt van Rijn's art is its calming effect on the viewer. People have been fascinated with his painting for centuries, and many say that they fell very immersed in the artist's work. Thanks to modern scientific means, experts have been recent... |
29 May 2010
05:27 GMT |
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Fergus Wilson, a theoretical astrophysics student from the University of Leicester, in the United Kingdom, is currently developing a new technique for modeling fluids that he says could hold the key towards uncovering a number of mysteries still related to studies of the Universe. The method he's developing is a... |
27 May 2010
10:58 GMT |
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In a recently-published investigation, researchers paint a bleak picture for the polar bear. The new computer model, which is the first to use all available data on the animals to model their chances of reproduction and survival, shows that global warming and climate change will affect the number of bears steeply and... |
26 May 2010
03:34 GMT |
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When massive stars reach the end of their burning cycle, they tend to blow up in massively large explosions called supernovae. As they do so, they release so much energy that they briefly outshine entire galaxies, featuring billions of stars. Due to the complex nature of the processes involved in such an event, compu... |
14 May 2010
09:44 GMT |
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White dwarfs are omnipresent in the Universe. They are generally seen as representing the final stage in an average star's evolution, and are thought to form when a Sun-sized stellar object can no longer sustain nuclear fusion. Astronomers have known for a long time that analyzing these objects may yield some in... |
13 May 2010
02:43 GMT |
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A series of new computer simulations shows that Earth could become too hot for humans within the next few centuries, and not over thousands of years, as originally estimated. The computer models were based on reasonable worst-case scenarios that were derived from current global warming trend. Researchers behind the i... |
5 May 2010
05:11 GMT |
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Astronomers have for a long time attempted to develop methods of predicting when a comet will begin to emit dust and ice particles from its central region. Called a nucleus, these areas look like they are made of rocks, but they are in fact made of frozen ice. In a recent investigation, a team of experts was finally ... |
4 May 2010
10:33 GMT |
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One of the most peculiar occurrences in nature is the fact that deserts can experience lightning. This should not happen, experts say, as the amount of precipitations in some of the world's driest areas is almost negligible. However, dust storms appear perfectly capable of producing lightning discharges, a fact ... |
12 April 2010
03:50 GMT |
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Two researchers from the University of Twente, in the Netherlands, have each designed a computer-based approach to facilitate the modeling of cities in three-dimensions. Generally, this is done by in a very complex manner, and requires a lot of time and effort. But the investigators, scientists Shi Pu and Sander Oude... |
30 March 2010
06:50 GMT |
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With the advent of the Industrial Revolution, humans began putting more and more carbon dioxide into the atmosphere. The amount of the greenhouse gas has been increasing steadily since then, and is currently at very high levels, with billions of tons being emitted annually. In addition to the global warming effect th... |
29 March 2010
16:01 GMT |
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Experts at the US Department of Energy's (DOE) Sandia National Laboratories, in Livermore, are about to get a gift only scientists appreciate. Their existing Combustion Research Facility (CRF) will be augmented by another building, the Combustion Research Computation and Visualization (CRCV) station. The groundb... |
23 March 2010
10:13 GMT |
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For more than two decades, astrophysicists have been puzzled by a very strange cosmic event. Every time a new, massive star is born – of the class whose members have several hundred times the mass of our Sun – it continues to gather material from the remnants of the clouds that collapsed to form it. This ... |
16 March 2010
20:01 GMT |
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For many years, materials scientists have been looking at spiders and silk worms with awe. These tiny animals know from instinct how to construct some of the toughest materials in the world. The silk they produce has enormously-interesting properties, including the fact that it's stronger and lighter than steel,... |
15 March 2010
05:42 GMT |
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When researchers finally announced that they had managed to sequence the entire human genome, that news was indeed groundbreaking. The momentous achievement led to numerous innovations in medicine, and will most likely continue to do so for a long time. Now, scientists are aiming for the cherry on the cake, which is ... |
10 March 2010
10:45 GMT |
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Experts looking into boosting the efficiency of all sorts of systems, ranging from production lines to spreading advertising, know that a straight line between two points is not always the most effective or reliable delivery system for data or products. A new scientific model shows that, in fact, the best possible ro... |
1 March 2010
08:32 GMT |
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Dust in our planet's atmosphere is one of the most important factors dictating a multitude of processes going on over extended periods of time. These fine particles, which originate in the deserts of Sahara and the Middle East, have the ability to influence the long-term trend of global warming, and can also hav... |
20 February 2010
04:53 GMT |
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Plant biologists and agricultural researchers will soon be able to benefit from the tremendous advantages brought forth by a new device, called AraNet. The machine is capable of characterizing yet-unknown plant genes, in a process that has unprecedented speed and accuracy. The computational model essentially predicts... |
1 February 2010
02:26 GMT |
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One of the most potent sources of astronomical knowledge at this point are supercomputer simulations. Powerful processors take into account data that experts input, and then show all possible outcomes in a certain system. However, though significant progress has been made in this field, one large problem endured, and... |
30 January 2010
04:42 GMT |
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At this point in time, the effects of global warming and climate change are becoming increasingly obvious, and researchers need to work together with authorities to produce valid science and policies, aimed at preventing devastating effects. But in order to do that, policymakers need to base their decisions on accura... |
26 January 2010
03:54 GMT |
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Scientists at the US Department of Energy's (DOE) Argonne National Laboratory (ANL) announce the development of a new computer algorithm that allows for them to visualize the reactions that go on inside a nuclear reactor in finer detail than ever before. The neutron transport code UNIC, which is still under deve... |
25 January 2010
04:11 GMT |
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For many years, astronomers have been trying to explain how it is that dwarf galaxies, the small companions around more massive systems, tend to have less mass and less stars at their cores. Traditionally, it's the other way around, with massive galaxies such as the Milky Way featuring a core that is both more m... |
14 January 2010
03:08 GMT |
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In spite of the fact that today's supercomputers are highly advanced and capable of billions of operations per second, they still have difficulties in handling complex tasks such as modeling the Big Bang. However, this line of research is absolutely fundamental to understanding our place and origin in the Univer... |
6 January 2010
04:53 GMT |
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It took centuries of astronomical observations for the early scientists to figure out that the stars in the night sky actually belonged to different galaxies, and to also determine that some of these stars were actually distant galaxies themselves. The model that held that the Universe was made of galaxies separated ... |
22 December 2009
06:50 GMT |
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Scientists at the Lulea University of Technology announce the development of a new computer model, which is perfectly capable of mimicking a pair of human brain functions in a digital environment. A number of potentially-groundbreaking applications spring to mind, including the development of machines that are able t... |
28 November 2009
06:25 GMT |
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One of the most important things to do when discovering a new species of animals or of ancient hominids, in the fossil record is to depict it as accurately as possible. For many years, paleoartists, which specialize in creating drawings or sculptures of creatures that lived millions of years ago, have accompanied arc... |
26 November 2009
06:38 GMT |
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Scientists at the University of Minnesota announce the development of a new and unique computer model, designed to assist experts in reverting real streams to initial, healthier states. The program, which has been dubbed the Virtual StreamLab, demonstrates the physical of natural water flows with unprecedented realis... |
25 November 2009
02:46 GMT |
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Scientists at the Northern Illinois University (NIU) have recently announced that they managed to develop a new computer-generated map of the Red Planet, which adds more proof to the theory that claims a liquid ocean of water once existed on Mars. The team collaborated with colleagues from the Lunar and Planetary Ins... |
23 November 2009
11:11 GMT |
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Between recent ice ages, temperatures in Antarctica apparently increased significantly, a new body of researches shows. This has led scientists to conclude that the Eastern part of the Southern continent, which is currently melting faster due to global warming, also did so in the past. This demonstrates an ongoing su... |
19 November 2009
07:23 GMT |
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Within the next 90 to 100 years, carbon emissions from the burning of fossil fuels will have to be all phased out, scientists reveal. A temperature rise of only two degrees Celsius would reshape the international map, modifying the borders of all countries that are next to seas and oceans. In order to avoid catastrop... |
18 November 2009
18:51 GMT |
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Speaking yesterday at the SC09 international supercomputing conference, in Portland, scientists announced that the Cray XT5 high-performance computing system, also known as the Jaguar supercomputer, had officially become the world's fastest computer. The Jaguar moved far ahead of IBM's Roadrunner, which has... |
17 November 2009
05:08 GMT |
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With the inevitable advent of metamaterials and invisibility cloaks, the world is eager to know precisely how a hidden object would look like in real life. While practical applications are still some time away, German researchers at the Karlsruhe Institute of Technology have recently released a series of pictures on ... |
13 November 2009
19:31 GMT |
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Everyone who has ever wiped out dust from an entire house can tell you that, just hours after cleaning, the stuff always returns undisturbed, as if nothing ever happened. This is naturally a nuisance to people who spend hours trying to clean up. Most of us have also wondered as to where all the dust keeps coming from... |
13 November 2009
16:31 GMT |
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In spite of being so common it's becoming annoying at times, sand is one of the most peculiar states of matter on the planet. While it may indeed not show, the stuff is able to behave like both a solid and a liquid at the same time, an ability that has made many physicists puzzle over which one of the two sands ... |
10 November 2009
10:59 GMT |
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Over recent years, scientists have devised a number of computer models in their attempt to decipher how changes in the atmosphere will influence human activities in some of the most populated areas of the world. Some of the most complex such models to date are those that have been created for heavy rainfall, but, acc... |
9 November 2009
18:31 GMT |
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Certain compounds of silicon, aluminum and oxygen, known as zeolites, are essential to such products as kitty litter, detergents and gasoline, and, as such, important for the modern-day lifestyle we are accustomed to. There are, at this point, about 200 known types of the stuff, but experts have hypothesized for a lo... |
3 November 2009
21:21 GMT |
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Future nanodevices will be structures that are extremely small, and that will play a huge host of roles, both in the human body and in the industry. However, in order to make them operational, very small wires, called nanowires, are needed. These structures are made from such materials as gold, silver or, in some... |
30 October 2009
07:35 GMT |
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Scientists have tried for a long time to figure out how the elements necessary for life might appear on other planets. One of the preferred ways to do this was with the help of a computer model, which simulated the interactions that appeared between a number of chemical elements, and determined the probability of the... |
29 October 2009
21:51 GMT |
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One of the most arduous dreams that spies and secret agencies around the world have is to benefit from invisible observers in all possible situations. One way this can be done, and that, apparently, will become reality fairly soon, is through small, insect-like robots, outfitted with small-scale observation equipment... |
28 September 2009
19:01 GMT |
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As the months go by, it becomes painfully obvious to all those involved with getting Spirit out of its predicament that it isn't going to be an easy task. Though they knew from day one that it was going to be very difficult to remove the rover from the loose patch of Martian soil called Troy, engineers at NASA&#... |
15 September 2009
02:34 GMT |
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More than 4,000 objects bearing the symbols characteristic to the Indus Valley Civilization have been discovered in the past century, a wealth of information that should, at least in theory, mean that archaeologists know everything there is to know about the time. However, that is not the case. Since the earliest sym... |
4 August 2009
13:31 GMT |
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Over recent decades, the complexity of simulations conducted using the world's supercomputers has increased significantly, and it is now possible to mimic the path of an atom or the behavior of a fly, or run simulations involving numerous factors at the same time. Taking his inspiration from the way meteorologis... |
24 July 2009
03:50 GMT |
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It would appear that petascale supercomputers, able to perform one quadrillion (one million billion) operations per second or more, are no longer in fashion for studying black holes, the collision of galaxies, or the decay of protons in the magnetosphere, but rather for understanding things that were thought to be ou... |
7 July 2009
06:55 GMT |
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Antibody drugs are among the most potent forms of medication that the world has ever seen, but their efficiency is counteracted by a built-in deficiency – the fact that the actual antibodies inside the drugs tend to clump together if they spend too much time on the shelves, causing them to become ineffective. D... |
30 June 2009
16:31 GMT |
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Sunspots have been thoroughly analyzed over the past couple of years, as a low solar cycle minimum turned the attention of the astronomical community to the Sun. But, despite trying to explain how the formations appeared, very few experts were able to come up with believable theories as to what they were made of, and... |
19 June 2009
03:55 GMT |
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Directly assessing the toughness of neutron stars spinning billions of light-years away is a physical impossibility for now, so Indiana University (IU) researcher Charles Horowitz, who is also a College of Arts and Sciences' Department of Physics professor, used supercomputer time at both the university and the ... |
7 May 2009
05:55 GMT |
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