A research team has been able to tune “coherence” in organic nanostructures due to the surprise discovery of wavelike electrons in organic materials. The finding reveals the key to generating long-lived charges in organic solar cells, which could represent the next major advance in solar technology.
Researchers have proved the feasibility of a new...
Researchers at the Wyss Institute for Biologically...
Lawrence Livermore National Laboratory researchers have combined ultra-fast time-resolved...
Networks of nanometer-scale machines offer exciting potential applications in medicine, industry, environmental protection and defense, but until now there’s been one very small problem: the limited capability of nanoscale antennas fabricated from traditional metallic components. With antennas made from conventional materials like copper, communication between low-power nanomachines would be virtually impossible.
Hipster, surfer or biker? Computers may soon be able to tell the difference: Scientists in California are developing an algorithm that uses group pictures to determine to which of these groups, or urban tribes, you belong. So far, the algorithm is 48% accurate on average, much better than chance but not yet to level of humans.
The NSA chief said Wednesday he knows of no better way his agency can help protect the U.S. from foreign threats than with spy programs that collect phone and Internet records from around the world. Pleading with the Senate Judiciary Committee to not abolish the National Security Agency's bulk-collection programs, Gen. Keith Alexander warned that global threats are growing that pose what he called "an unacceptable risk" to America.
Jupiter’s moon Europa features an intricate network of cracks in its icy surface. This unusual pattern is particularly pronounced around the equator. Scientists performing modeling studies on the potential marine currents below this ice layer have discovered that, near Europa’s equator, warmer water rises from deep within the moon.
Gaming could become much more realistic with new technology developed at the MIT Computer Science and Artificial Intelligence Lab (CSAIL) that permits highly accurate, 3-D motion tracking. The new system, dubbed “WiTrack”, uses radio signals to track a person through walls and obstructions, pinpointing her 3-D location to within 10 to 20 cm, about the width of an adult hand.
Stanford Univ. scientists may have solved the mystery of what drives a type of earthquake that occurs deep within the Earth and accounts for one in four quakes worldwide. Known as intermediate-depth earthquakes, these temblors originate farther down inside the Earth than shallow earthquakes, which take place in the uppermost layer of the Earth's surface, called the crust.
For some microbes, the motto for growth is not so much “every cell for itself,” but rather, “all for one and one for all.” Researchers have found that cells in a bacterial colony grow in a way that benefits the community as a whole. That is, while an individual cell may divide in the presence of plentiful resources to benefit itself, when a cell is a member of a larger colony, it may choose instead to grow in a more cooperative fashion.
The first LCD television was invented in 1972 at Westinghouse in Pennsylvania. Like many important inventions, it didn’t become a common sight in the average home for several decades. It took the combined efforts of many researchers and several corporations to create a display of acceptable quality in the late 1990s. In the early 2000s, another innovation helped set the stage for the proliferation of LCD displays: Multilayer Optical Film.
Provider of flexible and affordable 3-D modeling software for engineers, SpaceClaim, has announced the launch of the 2014 edition of SpaceClaim Engineer. The new release maintains the familiar interface and workflow of the prior editions while combining tools for manufacturing, advances in file compatibility, performance speed gains and improved collaboration.
Multiphysics software simulations are used by biomedical equipment developers to reliably design complex mechanisms for enhancing the human physical condition. These medical devices can include tools for treating cancers, enhancing hearing and treating chronic back pain.
Scientific innovation lifecycle management solutions provider Accelrys has added to its enterprise capabilities with the acquisition of Ireland-based QUMAS for $50 million in cash. QUMAS is a global provider of cloud-based and on-premises enterprise compliance software supporting regulatory and quality operations in life sciences and other highly regulated industries.
To learn new motor skills, the brain must be plastic: able to rapidly change the strengths of connections between neurons, forming new patterns that accomplish a particular task. However, if the brain were too plastic, previously learned skills would be lost too easily. A new computational model explains how the brain maintains the balance between plasticity and stability, and how it can learn similar tasks without interference.
Univ. of Oregon chemists studying the structure of ligand-stabilized gold nanoparticles have captured fundamental new insights about their stability. The information, they say, could help to maintain a desired, integral property in nanoparticles used in electronic devices, where stability is important.
The Titan Arm, a robotic device invented by Univ. of Pennsylvania engineering students, looks and sounds like part of a superhero's costume. But its creators say it's designed for ordinary people—those who need either physical rehabilitation or a little extra muscle for their job. The arm can help its wearer carry an additional 40 pounds.
Even as Silicon Valley speaks out against the U.S. government's surveillance methods, technology companies are turning a handsome profit by mining personal data. Tarnished by revelations that the National Security Agency trolls deep into the everyday lives of Web surfers, companies like Apple, Facebook, Google, and Microsoft are aggressively battling any perception that they voluntarily give the government access to users' information.
With one stomp of his foot, Zhong Lin Wang illuminates a thousand light-emitting diode (LED) bulbs, with no batteries or power cord. The current comes from essentially the same source as that tiny spark that jumps from a fingertip to a doorknob when you walk across carpet on a cold, dry day. Wang and his research team have learned to harvest this power and put it to work.
Students may soon be able to touch some of the theoretical concepts they are taught in their physics classes thanks to a new idea devised by a group of researchers in England. In just eight hours and at the cost of around 15 euros, they were able to use a commercially available 3-D printer to create their own object based on a mathematical model that described how forest fires can be started and how they eventually spread over time.
A connected vehicle network, with vehicles exchanging information with the highway infrastructure and other vehicles using wireless communications, could improve traffic safety, mobility and environmental impacts. Southwest Research Institute, which has considerable expertise in intelligent vehicle development, is now serving as an official Connected Vehicle Affiliated Test Bed for this technology.
An ultrasonic microscope emits a high frequency sound at an object, and the reflected sound captured by its lens is converted into a 2-D image of the object under scrutiny. Prof. Naohiro Hozumi in Japan is developing the technology to monitor living tissue and cell specimens for medical purposes.
The information and communications technologies (ICT) industry, and the significant level of R&D that supports it, is driven by constant change in consumer preferences, market demand and technological evolution. The ICT industry is the largest private-sector R&D investor in the U.S., performing nearly one-third of the total.
Transistors, the workhorses of the electronics world, are plagued by leakage current. This results in unnecessary energy losses, which is why smartphones and laptops, for example, have to be recharged so often. Researchers have recently shown that this leakage current can be radically reduced by “squeezing” the transistor with a piezoelectric material. Using this approach, they have surpassed the theoretical limit for leakage current.
Are electrons truly round? More specifically, is the electron’s charge between its poles uniform? A group at JILA has tackled this difficult question and has developed a method of spinning electric and magnetic fields around trapped molecular ions to measure the tiny electrons. They haven’t yet matched other electric dipole moment measurement techniques, but eventually the new method should surpass them.
A researcher team from Spain and Italy say that when envisioning in vivo microrobots of the future, we should forget cogwheels, pistons and levers. These miniature robots will be soft, and behave much like euglenids, tiny unicellular aquatic animals. Their work in studying these creatures have given them insights on how to design soft robots with effective mechanical structures.
High-temperature superconductors exhibit a frustratingly varied catalog of odd behavior, such as electrons that arrange themselves into stripes or refuse to arrange themselves symmetrically around atoms. Now two physicists propose that such behaviors, and superconductivity itself, can all be traced to a single starting point, and they explain why there are so many variations.
Researchers have combined cutting-edge experimental techniques and computer simulations to find a new way of predicting how water dissolves crystalline structures like those found in natural stone and cement. The research could have wide-ranging impacts in diverse areas, including water quality and planning, environmental sustainability, corrosion resistance and cement construction.
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