Providing secure wireless connections and improving the efficiency of communication devices could be another application for graphene, as demonstrated by scientists at Queen Mary University of London and the Cambridge Graphene Centre.
Often touted as a wonder material, graphene is a one-atom thick layer of carbon with remarkable, record breaking properties. Until now its ability to absorb electromagnetic radiation – energy from across the radio frequency spectrum – was not known.
URBANA, Ill. – The Cache River Basin, which once drained more than 614,100 acres across six southern Illinois counties, has changed substantively since the ancient Ohio River receded. The basin contains a slow-moving, meandering river; fertile soils and productive farmlands; deep sand and gravel deposits; sloughs and uplands; and one of the most unique and diverse natural habitats in Illinois and the nation.
RIVERSIDE, Calif. (http://www.ucr.edu) — A University of California, Riverside assistant professor of engineering is among a group of researchers that have made important discoveries regarding the behavior of a synthetic molecular oscillator, which could serve as a timekeeping device to control artificial cells.
RICHLAND, Wash. – Scientists have created a microbattery that packs twice the energy compared to current microbatteries used to monitor the movements of salmon through rivers in the Pacific Northwest and around the world.
Coral Gables, Fla. (Feb. 17, 2014) -- There is a big effort in industry to produce electrical devices with more and faster memory and logic. Magnetic memory elements, such as in a hard drive, and in the future in what is called MRAM (magnetic random access memory), use electrical currents to encode information. However, the heat which is generated is a significant problem, since it limits the density of devices and hence the performance of computer chips.
PHILADELPHIA, PA, February 18, 2014 – During the school year, 21 million children receive free or reduced-price lunches, yet less than 10% of those children participate in the Department of Agriculture's Summer Food Service Program. This discrepancy places responsibility for food choices during the summer on parents. Previous efforts to improve the healthfulness of foods and beverages provided by parents have resulted in little to no improvement in the amount of fruits, vegetables, whole grains, and/or water.
Although low temperature fuel cells powered by methanol or hydrogen have been well studied, existing low temperature fuel cell technologies cannot directly use biomass as a fuel because of the lack of an effective catalyst system for polymeric materials.
WOODS HOLE, Mass. —A Navy-sponsored project to design a biologically inspired, swimming jellyfish robot has led scientists to the surprising discovery of common bending rules for the tips of wings, fins, flukes, mollusk feet, and other propulsors across a broad range of animal species.
The study, led by John H. Costello of Providence College and the Marine Biological Laboratory (MBL) in Woods Hole, where he is a visiting scientist, is published this week in Nature Communications.
This news release is available in German.
"How do I know that the new installed app behaves as described?" asks Andreas Zeller, professor of software engineering at Saarland University. So far experts have identified so-called malicious apps by checking their behavior against patterns of known attacks. "But what if the attack is brand-new?" asks Zeller.
His group seems to have found a new method to answer all these questions. Zeller summarizes the basic idea as follows: "Apps whose functionality is described in the app store should behave accordingly. If that is not the case, they are suspect."
WASHINGTON, Feb. 18, 2014—For futuristic applications like wearable body sensors and robotic skin, researchers need to ferry information along flexible routes. Electronics that bend and stretch have become possible in recent years, but similar work in the field of optics – communicating with light instead of electrons – has lagged behind. Particularly difficult to engineer have been optics that stretch, lengthening when someone wearing body sensors bends to tie their shoe, or when a robotic arm twists through a full range of motion.
A paper in the Institution of Engineering and Technology's (IET) journal Electronics Letters reports that the Leeds team has exceeded a 1 Watt output power from a quantum cascade terahertz laser.
The new record more than doubles landmarks set by the Massachusetts Institute of Technology (MIT) and subsequently by a team from Vienna last year.
It's a time-consuming process for a program to arrange pictures in a consistent order. It is even more complex to order them on the basis of visual characteristics. Computer scientists from Saarbrücken have developed a system to arrange pictures into a consistent order. It requires no more than a small number of pre-sorted example pictures. Operators of online portals or museums could use this technique, for example, to arrange complex datasets.
WA, Seattle (February 17, 2014) – A new study describes the complexity of the new T cell repertoire following immune-depleting therapy to treat multiple sclerosis, improving our understanding of immune tolerance and clinical outcomes.
TEMPE, Ariz. – Nanoscale technology looks promising as a major contributor to advancements needed to fulfill the potential of emerging sources of clean, renewable energy.
Progress in the comparatively new area of nanoelectronics in particular could be the basis for new manufacturing processes and devices to make renewable energy systems and technologies more efficient and cost-effective.