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.
Researchers have long attempted to build a device capable of seeing people through walls. However, previous efforts to develop such a system have involved the use of expensive and bulky radar technology that uses a part of the electromagnetic spectrum only available to the military. Now a system being developed at the Massachusetts Institute of Technology can spot people in different rooms using low-cost Wi-Fi technology.
In secure communications, which can rely on quantum information contained in one of four wavelength phase states, wrong is worse than "I don't know." Researchers at NIST and the Joint Quantum Institute have built a single-photon detector that avoids this problem, making highly accurate measurements of incoming photons while knowing when not to give a conclusive answer.
The world's first space conversation experiment between a robot and humans is ready to be launched. Developers from the Kirobo project, named after "kibo" or hope in Japanese and "robot," gathered in Tokyo Wednesday to demonstrate the humanoid robot's ability to talk.
Imagine a swarm of tiny devices only a few hundred nanometers in size that can detect trace amounts of toxins in a water supply or the very earliest signs of cancer in the blood. Now imagine that these tiny sensors can reset themselves, allowing for repeated use over time inside a body of water—or a human body. In a recent Yale Univ. breakthrough, this has become a reality.
Researchers at Univ. of California, Santa Barbara, in collaboration with Univ. of Notre Dame, have recently demonstrated the highest reported drive current on a transistor made of a monolayer of tungsten diselenide (WSe2). The discovery is also the first demonstration of an "n-type" WSe2 field-effect-transistor, showing the potential of this material for future low-power and high-performance integrated circuits.
Researchers at Massachusetts Institute of Technology have proposed a new system that combines ferroelectric materials with graphene. The resulting hybrid technology could eventually lead to computer and data-storage chips that pack more components in a given area and are faster and less power hungry. The new system works by controlling waves called surface plasmons.
In the journal Nature, researchers at Massachusetts Institute of Technology’s Media Lab report a new approach to generating holograms that could lead to color holographic-video displays that are much cheaper to manufacture than today’s experimental, monochromatic displays. The same technique could also increase the resolution of conventional 2-D displays.
Eighteen months in the works, the top-secret project was announced Saturday in New Zealand, where up to 50 volunteer households are already beginning to receive the Internet briefly on their home computers via translucent helium balloons that sail by on the wind 12 miles above Earth. Google is launching these Internet-beaming antennas into the stratosphere aboard giant, jellyfish-shaped balloons.
In the near future, a buzz in your belt or a pulse from your jacket may give you instructions on how to navigate your surroundings. Think of it as tactile Morse code: vibrations from a wearable, GPS-linked device that tell you to turn right or left, or stop, depending on the pattern of pulses you feel.
Americans are accustomed to calling 9-1-1 to get help in an emergency. A research team lead by Ram Dantu of the University of North Texas sees the growth of cell phone and smartphone usage as an opportunity to improve 9-1-1 response. His team has designed several innovative smart phone apps that virtually place 9-1-1 operators at the scene of an emergency, allowing faster response.
The "electronic nose" sensor developed by a Univ. of California, Riverside engineering professor, and being commercialized by Innovation Economy Crowd (ieCrowd), will be further refined to detect deadly pathogens including toxic pesticides in the global food supply chain, according to a recently signed product development and distribution agreement.
To handle large amounts of data from detailed brain models, IBM, EPFL, and ETH Zürich are collaborating on a new hybrid memory strategy for supercomputers. They are exploring how to combine different types of memory—DRAM, which is standard for computer memory, and flash memory that is akin to USB sticks—for less expensive supercomputing performance to help advance the Human Brain Project.
Researchers have recently determined that cheetahs can run twice as fast as Olympian Usain Bolt on a straightaway. Then they measured the energy a cheetah muscle produces compared to body size and calculated the same for Bolt, the sprinter. They found the cheetah had four times the crucial kick power of the Olympian. That power to rapidly accelerate—not just speed alone—is the key to the cheetah's hunting success.
In findings that could help overcome a major technological hurdle in the road toward smaller and more powerful electronics, an international research team involving Univ. of Michigan engineering researchers, has shown the unique ways in which heat dissipates at the tiniest scales.
At this week’s International Image Sensor Workshop in Utah, Belgium’s imec and Holst Centre, in collaboration with Philips Research, will present a large-area fully-organic photodetector array fabricated on a flexible substrate. The imager is sensitive in the wavelength range suitable for x-ray imaging applications.
Using foam substrates, researchers in Switzerland have made a flexible electronic circuit board. In experiments using various deformable materials, the team discovered a new kind of platform upon which to build circuits: elastomeric foams. These foams, used in packaging materials, serve as a substrate for metallic materials and can be stretched without disrupting electrical conductivity. The breakthrough could progress on electronic skin.