Tech

UC discoveries could help quiet the world's cities

They're fast. They're powerful. And, they are deafening. Furthermore, those Top Gun military jets need to be up in the air in the wee hours – over land – to simulate their landings on aircraft carriers. But innovations out of the University of Cincinnati's Gas Dynamics and Propulsion Laboratory are showing promise in reducing the intense noise of these supersonic jets without impacting their power. It's research that can help neighborhoods slumber a little more soundly, keep their windows rattling a little less loudly and also protect the hearing of military personnel.

Active Noise Control: Quieter cars, even when hitting unexpected bumps in the road

All noise is not necessarily equal – especially when it comes to sound minimization in automobiles.

For instance, automakers have long used sound-absorbing materials (passive control) in the design of cars in order to minimize engine noise and the "routine" noise of tires traveling on smooth pavement at a consistent speed. However, a means to minimize sudden, unexpected noises – like those from an encounter with potholes, bumps or other roadway pavement obstacles – has been more problematic.

New technology delivers sustained release of drugs for up to 6 months

Technology which delivers sustained release of therapeutics for up to six months could be used in conditions which require routine injections, including diabetes, certain forms of cancer and potentially HIV/AIDS.

Researchers from the University of Cambridge have developed injectable, reformable and spreadable hydrogels which can be loaded with proteins or other therapeutics. The hydrogels contain up to 99.7% water by weight, with the remainder primarily made up of cellulose polymers held together with cucurbiturils - barrel-shaped molecules which act as miniature 'handcuffs'.

NIST's speedy ions could add zip to quantum computers

Take that, sports cars! Physicists at the National Institute of Standards and Technology (NIST) can accelerate their beryllium ions from zero to 100 miles per hour and stop them in just a few microseconds. What's more, the ions come to a complete stop and hardly feel the effects of the ride. And they're not just good for submicroscopic racing—NIST physicists think their zippy ions may be useful in future quantum computers.

University of Houston researcher develops solar panel coating

f Houston researcher has developed a nanoparticle coating for solar panels that makes it easier to keep the panels clean, maintaining their efficiency for longer and reducing the maintenance and operations costs.

The patent-pending coating developed by physics professor Seamus "Shay" Curran, director of UH's Institute for NanoEnergy, has successfully undergone testing at the Dublin Institute for Technology and will undergo field trials being conducted by an engineering firm in North Carolina.

Nano, photonic research gets boost from new 3-D visualization technology

August 12, 2012) -- For the first time X-ray scientists have combined high-resolution imaging with 3-D viewing of the surface layer of material using X-ray vision in a way that does not damage the sample.

This new technique expands the range of X-ray research possible for biology and many aspects of nanotechnology, particularly nanofilms, photonics, and micro- and nano-electronics. This new technique also reduces "guesswork" by eliminating the need for modeling-dependent structural simulation often used in X-ray analysis.

A new energy source: Major advance made in generating electricity from wastewater

CORVALLIS, Ore. – Engineers at Oregon State University have made a breakthrough in the performance of microbial fuel cells that can produce electricity directly from wastewater, opening the door to a future in which waste treatment plants not only will power themselves, but will sell excess electricity.

The new technology developed at OSU can now produce 10 to 50 more times the electricity, per volume, than most other approaches using microbial fuel cells, and 100 times more electricity than some.

Wind farms: A danger to ultra-light aircraft?

For a motorized hangglider or a one-seater weighing 300 kilograms: the business of flying by ultra-light aircraft is booming. That is also why numerous airfields are applying for the license to host these lightweight gliders. Most of these airfields are located on flat land, which is also the preferred terrain for wind power plant. However, these facilities could turn out to be a risk factor for aviators, especially when it comes to takeoff and landing: On the one hand, the power plants "pilfer" the winds from the planes, because wind speeds aft of such facilities are considerably lower.

Optics and photonics research priorities discussed

WASHINGTON — A new report from the National Research Council identifies research priorities and grand challenges to fill gaps in optics and photonics, a field that has the potential to advance the economy of the United States and provide visionary directions for future technology applications. The report recommends that the federal government develop a "National Photonics Initiative" to bring together academia, industry, and government to steer federal research and development funding and activities.

Social Cloud TV: Social engagement for old media

Leaving your TV show midway because you had to leave your home will no longer happen as you can now 'pull' the program on your TV screen onto your tablet and continue watching it seamlessly.

You can also watch the same TV show or movie together with your family and friends, no matter which part of the world they are in. Not only that but you'll be able to discuss the show, whether you are on your personal tablet or smart phone, through a channel of your choice, be it video chat, voice or text.

A pre-crack might propagate or stick under mechanical and electrical loading

Fracture under combined mechanical and electric loading is currently a hot research area in the global fracture community, while electric sticking is a major concern in the design and fabrication of micro/nanoelectromechanical systems. Professor ZHANG Tong-Yi and his student, Mr. Tao Xie, from the Department of Mechanical Engineering, Hong Kong University of Science and Technology, found that the two problems are switchable, depending on the loading conditions, sample geometries and material properties.

World's most powerful X-ray laser beam refined to scalpel precision

With a thin sliver of diamond, scientists at the U.S. Department of Energy's (DOE) SLAC National Accelerator Laboratory have transformed the Linac Coherent Light Source (LCLS) into an even more precise tool for exploring the nanoworld. The improvements yield laser pulses focused to higher intensity in a much narrower band of X-ray wavelengths, and may enable experiments that have never before been possible.

Surgical gloves go high-tech: fingertip sensors for doctors will do ultrasounds

The intricate properties of the fingertips have been mimicked and recreated using semiconductor devices in what researchers hope will lead to the development of advanced surgical gloves.

The devices, shown to be capable of responding with high precision to the stresses and strains associated with touch and finger movement, are a step towards the creation of surgical gloves for use in medical procedures such as local ablations and ultrasound scans.

Quantum computer components 'coalesce' to 'converse'

If quantum computers are ever to be realized, they likely will be made of different types of parts that will need to share information with one another, just like the memory and logic circuits in today's computers do. However, prospects for achieving this kind of communication seemed distant—until now. A team of physicists working at the National Institute of Standards and Technology (NIST) has shown* for the first time how these parts might communicate effectively.

Spin lasers in the fast lane

Electrical engineers in Bochum have succeeded in developing a new concept for ultrafast semiconductor lasers. The researchers make clever use of the intrinsic angular momentum of electrons, called spin, to successfully break the previous speed barriers. The new spin lasers have the potential to achieve modulation frequencies of well above 100 GHz in future. This is a decisive step towards high-speed data transmission, e.g. for the Internet of tomorrow. The researchers report their results inApplied Physics Letters .