Turbulent combustion simulations, which provide input to the design of more fuel-efficient combustion systems, have gotten their own efficiency boost. Researchers developed new algorithmic features that streamline turbulent flame simulations, which play an important role in designing more efficient combustion systems. They tested the enhanced code on the Hopper supercomputer and achieved a dramatic decrease in simulation times.
Monstrous moonshine, a quirky pattern of the monster group in theoretical math, has a shadow —...
Just in time for Christmas, Richard Zhang reveals how to print a 3-D Christmas tree efficiently...
Using a computer algorithm that can sift through mounds of genetic data, researchers from Brown...
About 95 percent of the more than 10,000 bird species known only evolved upon the extinction of dinosaurs about 66 million years ago. According to computer analyses of the genetic data, today's diversity developed from a few species at a virtually explosive rate after 15 million years. Scientists designed the algorithms for the comprehensive analysis of the evolution of birds; a computing capacity of 300 processor-years was required.
Although there are a diverse range of applications for predictive analytics in R&D, two common basic requirements are data and insight. Data may be generated by running experiments/analyses, or re-applied from previous work when available. Insights come from application of knowledge — both explicitand tacit. There are a variety of roles for informatics in predictive analytics...
Communication protocols for digital devices are very efficient but also very brittle: They require information to be specified in a precise order with a precise number of bits. If sender and receiver — say, a computer and a printer — are off by even a single bit relative to each other, communication between them breaks down entirely.
World's Oldest Computer, Ancient Greek Antikythera Mechanism, 100 Years Older than Previously BelievedDecember 9, 2014 2:10 pm | by University of Puget Sound | News | Comments
An ancient Greek astronomical puzzle has one more piece in place. The new evidence results from research by James Evans, professor of physics at University of Puget Sound, and Christián Carman, history of science professor at University of Quilmes, Argentina. The two researchers published a paper advancing our understanding of the Antikythera Mechanism, an ancient Greek mechanism that modeled the known universe of 2,000 years ago.
Engineers have designed and built a prism-like device that can split a beam of light into different colors and bend the light at right angles, a development that could eventually lead to computers that use optics, rather than electricity, to carry data. The optical link is a tiny slice of silicon etched with a pattern that resembles a bar code. When a beam of light is shined at the link, two different wavelengths of light split off
A mathematician has developed a new way to uncover simple patterns that might underlie apparently complex systems, such as clouds, cracks in materials or the movement of the stockmarket.
Engineers have designed and built a prism-like device that can split a beam of light into different colors and bend the light at right angles, a development that could eventually lead to computers that use optics, rather than electricity, to carry data.
At a White House ceremony on November 20, 2014, President Obama presented the National Medal of Science and National Medal of Technology and Innovation to individuals who have made outstanding contributions to science and engineering. The awards are the nation's highest honors for achievement and leadership in advancing the fields of science and technology.
The introduction of newer sequencing methodologies, DNA microarrays and high-throughput technology has resulted in a deluge of large data sets that require new strategies to clean, normalize and analyze the data. All of these and more are covered in approximately 300 pages with extraordinary clarity and minimal mathematics.
The mathematician, Robert R. Coveyou, said: “The generation of random numbers is too important to be left to chance.” Random numbers are used in sampling, simulations, modeling, data encryption, gambling and even musical composition. A random number is one selected from a set of equally possible values. Any sequence of random numbers must be statistically independent of the others.
It has been a commonly held belief that supercomputing capability is a predictable phenomenon with the "fastest" system in the world increasing in power by three orders of magnitude about every 11 years. I put the term "fastest" in quotes, because very few ask the question: Fastest in what way? It turns out that this notion of "fastest" is limited to a narrow consideration of system performance that focuses on floating point capability.
Paramedics respond to a 911 call to find an elderly patient who’s having difficulty breathing. Anxious and disoriented, the patient has trouble remembering all the medications he’s taking, and with his shortness of breath, speaking is difficult. Is he suffering from acute emphysema or heart failure? The symptoms look the same, but initiating the wrong treatment regimen will increase the patient’s risk of severe complications.
Symbion QT 2.5. chemometrics software provides Parametric Data Cleaning, a technique that automates the handling of data compromised by excessive noise or other artifacts. Key cleaning parameters are under the control of the analyst, allowing chemometric optimization under a wide range of analytical situations.
Sinclair suggests that there still is a place in science in modern times for the interpretation of results using rational numbers or simple ratios. In a time where supercomputers dominate analysis, he argues that there is not enough attention being paid to the basic approaches to science of the past, which were able to profoundly illuminate our understanding of the natural world through the simplification of very complex topics and systems.
Researchers studying iron-based superconductors are combining novel electronic structure algorithms with the high-performance computing power of the Department of Energy’s Titan supercomputer at Oak Ridge National Laboratory to predict spin dynamics, or the ways electrons orient and correlate their spins in a material.
How does a normal cellular process derail and become unhealthy? A multi-institutional, international team led by Virginia Tech researchers studied cells found in breast and other types of connective tissue and discovered new information about cell transitions that take place during wound healing and cancer.
Most people who know of origami think of it as the Japanese art of paper folding. Though it began centuries ago, origami became better known to the world in the 20th century when it evolved into a modern art form. In the 21st century, origami has caught the attention of engineers who are using it to create all sorts of new structures — from collapsible packaging to airbags for cars. Origami has even found its way into space.
New software algorithms have been shown to significantly reduce the time and material needed to produce objects with 3-D printers. The algorithms have been created to address the problem. Researchers from Purdue University have demonstrated one approach that has been shown to reduce printing time by up to 30 percent and the quantity of support material by as much as 65 percent.
Complex biochemical signals that coordinate fast and slow changes in neuronal networks keep the brain in balance during learning, according to scientists who report on a six-year quest by a collaborative team from the three institutions to solve a decades-old question and open the door to a more general understanding of how the brain learns and consolidates new experiences on dramatically different timescales.
The drug creation process often misses many side effects that kill at least 100,000 patients a year. LLNL researchers have discovered a high-tech method of using supercomputers to identify proteins that cause medications to have certain adverse drug reactions, using high-performance computers to process proteins and drug compounds in an algorithm that produces reliable data outside of a laboratory setting for drug discovery.
Through a computational algorithm, researchers have developed a neural network that allows a small robot to detect different patterns, such as images, fingerprints, handwriting, faces, bodies, voice frequencies and DNA sequences. Nancy Guadalupe Arana Daniel focused on the recognition of human silhouettes in disaster situations.
During the 1930s, North America endured the Dust Bowl, a prolonged era of dryness that withered crops and dramatically altered where the population settled. Land-based precipitation records from the years leading up to the Dust Bowl are consistent with the telltale drying-out period associated with a persistent dry weather pattern, but they can’t explain why the drought was so pronounced and long-lasting.
The cold waters of Earth’s deep ocean have not warmed measurably since 2005, according to a new NASA study, leaving unsolved the mystery of why global warming appears to have slowed in recent years. Scientists at NASA's Jet Propulsion Laboratory in Pasadena, CA, analyzed satellite and direct ocean temperature data from 2005 to 2013 and found the ocean abyss below 1.24 miles (1,995 meters) has not warmed measurably.
The discovery of a new particle will “transform our understanding” of the fundamental force of nature that binds the nuclei of atoms, researchers argue. Led by scientists from the University of Warwick, the discovery of the new particle will help provide greater understanding of the strong interaction, the fundamental force of nature found within the protons of an atom’s nucleus.
NASA has formally delivered to Alaskan officials a new technology that could help pilots flying over the vast wilderness expanses of the northern-most state. The technology is designed to help pilots make better flight decisions, especially when disconnected from the Internet, telephone, flight services and other data sources normally used by pilots.
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