Fluxes and turbulence caused by the interaction between the air and sea can significantly alter the path of electromagnetic waves in radar and communications systems. In effort to boost the U.S. navy’s communications performance at sea, researchers deployed Office of Naval Research unmanned aerial vehicles (UAVs) in an effort to determine the ocean and atmospheric weather variations that can change the angle that radar and radio waves bend.
A team of theoretical physicists at the U.S. Naval Research Laboratory and Boston College has identified cubic boron arsenide as a material with an extraordinarily high thermal conductivity and the potential to transfer heat more effectively from electronic devices than diamond, the best-known thermal conductor to date.
High speed oscilloscopes are vital tools in the development of high-speed digital networks. Teledyne LeCroy, a subsidiary of Teledyne Technologies Inc., this week demonstrated the world's first 100 GHz real-time oscilloscope by successfully acquiring and displaying live signals at 100 GHz bandwidth
According to scientists at Carnegie Mellon Univ. and Microsoft Research, the same 3-D printing process used to produce an object can simultaneously generate an internal, invisible tag. These internal tags, which the have been dubbed InfraStructs, can be read with an imaging system using terahertz radiation. As terahertz technology develops, these tags could have many applications.
Flexible electronics have a wide variety of possibilities, from bendable displays and batteries to medical implants that move with the body. Networks of spherical nanoparticles embedded in elastic materials may make the best stretchy conductors yet, engineering researchers at the Univ. of Michigan have discovered.
Researchers at Arizona State Univ. have successfully manufactured the world’s largest flexible color organic light emitting display prototype using advanced mixed oxide thin film transistors. Measuring 7.4 diagonal inches, the device was developed at ASU’s Flexible Display Center in conjunction with Army Research Labs scientists.
Antennas that are capable of transmitting radio waves turn components into intelligent objects. Researchers in Germany have now found a way to embed these antennas in fiber composites. As a result, the technology also works with carbon and glass fibers.
Scientists have developed an "intelligent knife" that can tell surgeons immediately whether the tissue they are cutting is cancerous or not. In the first study to test the invention in the operating theatre, the "iKnife" diagnosed tissue samples from 91 patients with 100% accuracy, instantly providing information that normally takes up to half an hour to reveal using laboratory tests.
A*STAR Institute of Microelectronics in Singapore and OPUS Microsystems Corp., a Taiwan-based company specializing in microelectromechanical systems (MEMS) scanning mirror devices, have signed an agreement to refine and develop a MEMS scanning mirror for smartphones applications. The goal is to shrink the MEMS micromirror to allow a pico-projector level of operation.
Researchers at the Univ. of Washington say one of the reasons face- and eye-recognition systems haven’t taken off is because the user’s experience often isn’t factored into the design. Their recent study, one of the first in the field to look at user preferences, found that speed, accuracy and choice of error messages were all important for the success of an eye-tracking system.
Using carpets of aligned carbon nanotubes, researchers from Rice University and Sandia National Laboratories have created a solid-state electronic device that is hardwired to detect polarized light across a broad swath of the visible and infrared spectrum.
With existing 3-D television displays, viewers must wear stereo glasses to get the effect of seeing images on the screen in three dimensions, while viewers without the glasses see a blurry image. Researchers at the University of California, Santa Cruz, have developed a prototype for 3-D+2-D television that allows viewers with stereo glasses to see 3-D images, while viewers without the glasses see a normal 2-D image.
Imagine this: There's no need to throw out your old cellphone, because it will self-destruct. That's the idea behind a project at the Univ. of Illinois at Urbana-Champaign, where researchers are investigating how to build electronics that vanish in water. A new video from the university explains their efforts.
Research is growing with high-tech gadgets that promise new safety nets for seniors determined to live on their own for as long as possible. Motion sensors on the wall and a monitor under the mattress one day might automatically alert loved ones to early signs of trouble well before an elderly loved one gets sick or suffers a fall.
In DARPA’s Virtual Robotics Challenge, 28 competing teams applied software of their own design to a simulated robot in an attempt to complete a series of tasks that are prerequisites for more complex activities. Just seven teams advanced to the next round, which was unveiled last week at Boston Dynamics: ATLAS, one of the most advanced humanoid robots ever built.
The Industrial Technology Research Institute (ITRI) has announced that it won three 2013 R&D 100 Award. ITRI has earned 16 awards for consecutive six years. ITRI's iAT technology, ButyFix and FluxMerge were awarded the three awards.
In an apple seed-sized pellet of glass, Univ. of Michigan engineering researchers have packed seven devices that together could potentially provide navigation in the absence of the satellite-based Global Positioning System (GPS.) Space-based GPS is far from fail-proof. It doesn't work indoors, near tall buildings or in heavy cloud cover; and it's relatively easy to jam, researchers say.
A low-cost system developed in Singapore, based on the principles of vibration and imaging, can turn a whiteboard, glass window or even a wooden tabletop into a responsive, touch-sensitive surface. According to its developers, retrofitting the system onto existing flat-panel TVs will transform them into new, touch-sensitive display screens.
Landing an airplane on an aircraft carrier deck is one of the most difficult tasks a pilot is asked to do. On Wednesday, the Navy will attempt to accomplish the same task with a drone. If all goes as planned, a successful landing of the X-47B experimental aircraft will mean the Navy can move forward with its plans provide around-the-clock surveillance and strike capability.
A team led by Rice University chemist James Tour has built a 1-kilobit rewritable device with diodes that eliminate data-corrupting crosstalk. This chip, which uses cheap, plentiful silicon oxide to store data, shows it should be possible to surpass the limitations of flash memory in packing density, energy consumption per bit and switching speed.
Optical computing could pay dividends for both conventional and quantum computers. But optical computing requires photons to modify each other’s behavior, something they’re naturally averse to doing: Two photons that collide in a vacuum simply pass through each other. Researchers have recently described the experimental realization of an optical switch that's controlled by a single photon, allowing light to govern the transmission of light.
In the constant push for smaller transistors, researchers have been investigating oxides with higher K, or dielectric constant, values. Materials such as germanium, hafnium, and titanium are being investigated for this role, but many prototypes leak electrons. At the National Synchrotron Light Source, x-rays are being used to probe the electronic behavior of a germanium-based transistor structure that could offer a solution.
Researchers in Switzerland have designed prototype for an image sensor based on the semiconducting properties of molybdenite. Their sensor only has a single pixel, but it needs five times less light to trigger a charge transfer than the silicon-based sensors that are currently available.
Digital systems are an everyday routine for more and more passengers, and even Internet is now available. But pilots are largely cut off from this development with a system that is separate and largely analog. Under development in Germany is a new system that will digitally transmit air traffic and weather communications with the ground and via satellite at high speeds.
Hospitals have fretted for years over how to make sure doctors, nurses and staff keep their hands clean, but with only limited success. Now, some are turning to technology—beepers, buzzers, lights and tracking systems that remind workers to sanitize, and chart those who don't.