HOUSTON – (Nov. 16, 2012) – A device that looks like a tiny washboard may clean the clocks of current commercial products used to manipulate infrared light.
New research by the Rice University lab of Qianfan Xu has produced a micron-scale spatial light modulator (SLM) like those used in sensing and imaging devices, but with the potential to run orders of magnitude faster. Unlike other devices in two-dimensional semiconducting chips, the Rice chips work in three-dimensional "free space."
UNIVERSITY PARK, Pa. -- Technology can serve as a tool to bridge the digital divide, but it is unlikely to be a complete solution in helping people find jobs and escape poverty, according to a Penn State researcher.
"People really want to believe that the latest technology will help us do all these great things and liberate us," said Michelle Rodino-Colocino, assistant professor of communications and women's studies. "But it's also a way of putting off the big problems and saying, 'let's not touch these big problems because Internet access will turn it all around for us.' "
Ethanol, a component of biofuel made from plants such as corn, is blended with gas in many parts of the country, but has significantly different fluid properties than pure gasoline. A group of researchers from the University of Michigan wondered how ethanol-based fuels would spread in the event of a large aquatic spill. They found that ethanol-based liquids mix actively with water, very different from how pure gasoline interacts with water and potentially more dangerous to aquatic life.
Psychological scientists are exploring the mechanisms that underlie memory to understand why we remember certain things and why we forget others. Read about the latest research on memory published in the November 2012 issue of Psychological Science.
Retrieval-Induced Forgetting Predicts Failure to Recall Negative Autobiographical Memories
A fundamental cornerstone for spintronics that has been missing up until now has been constructed by a team of physicists at Linköping University in Sweden. It's the world's first spin amplifier that can be used at room temperature.
Colleges are often perceived as leaning left, but research by social scientists at the University of Iowa suggests the reality is more nuanced and that higher education attracts students from across the political spectrum.
The researchers say fraternities and sororities in particular tend to be a locus for students who are more conservative than classmates unaffiliated with the Greek system. They also provide a buffer from influences that can make students more liberal over the course of their college careers.
A study led by researchers from the University of California, San Diego School of Medicine has found a correlation between vitamin D3 serum levels and subsequent incidence of Type 1 diabetes. The six-year study of blood levels of nearly 2,000 individuals suggests a preventive role for vitamin D3 in this disease. The research appears the December issue of Diabetologia, a publication of the European Association for the Study of Diabetes (EASD).
New artificial muscles made from nanotech yarns and infused with paraffin wax can lift more than 100,000 times their own weight and generate 85 times more mechanical power during contraction than the same size natural muscle, according to scientists at The University of Texas at Dallas and their international team from Australia, China, South Korea, Canada and Brazil.
CAMBRIDGE, MA -- Thermoelectric devices, which can harness temperature differences to produce electricity, might be made more efficient thanks to new research on heat propagation through structures called superlattices. The new findings show, unexpectedly, that heat can travel like waves, rather than particles, through these nanostructures: materials made up of layers only a few billionths of a meter in thickness.
CORVALLIS, Ore. – Electrical engineers at Oregon State University have developed new technology to monitor medical vital signs, with sophisticated sensors so small and cheap they could fit onto a bandage, be manufactured in high volumes and cost less than a quarter.
A patent is being processed for the monitoring system and it's now ready for clinical trials, researchers say. When commercialized, it could be used as a disposable electronic sensor, with many potential applications due to its powerful performance, small size, and low cost.
Some arid lands in the American West degraded by military exercises that date back to General George Patton's Word War II maneuvers in the Mojave Desert should get a boost from an innovative research project led by the University of Colorado Boulder.
CHAMPAIGN, Ill. — They're soft, biocompatible, about 7 millimeters long – and, incredibly, able to walk by themselves. Miniature "bio-bots" developed at the University of Illinois are making tracks in synthetic biology.
Designing non-electronic biological machines has been a riddle that scientists at the interface of biology and engineering have struggled to solve. The walking bio-bots demonstrate the Illinois team's ability to forward-engineer functional machines using only hydrogel, heart cells and a 3-D printer.
Researchers from Jena and Greifswald used GPS satellites for a long-term behavioral monitoring of land crab migration on Christmas Island. In cooperation with colleagues from the Zoological Institute at the University of Greifswald, scientists from the Max Planck Institute for Chemical Ecology in Jena, Germany, used a GPS-based telemetric system to analyze movements of freely roaming robber crabs, which is the first large-scale study of any arthropod using GPS technology to monitor behavior.
WASHINGTON, Nov.
The computer activates an alarm: the machine's motor is threatening to overheat. The thermosensor attached directly to the motor housing reports the threat. The information is transmitted to the maintenance service which ensures that the cause is identified. Sensors can be used in factories, car manufacturers and other areas in everyday life. They measure temperature, humidity and wear and tear. Data is transmitted to the computer via wireless communication and read out.