News articles tagged with 'electromagnetic' (Page 4)
New testing facility helps researchers improve land mine detection equipment
— 14 May 2009 11:11 | TechnologyResearchers at the Georgia Institute of Technology have built a test facility to evaluate and enhance sensors designed to detect buried land mines. The unique automated system measures…
Tide turns in fight to keep MRI scanners operating
— 9 Apr 2009 14:52 | HealthFurther pressure has been applied to the European Commission to amend the Physical Agents (EMF) Directive which, if adopted into national legislation, would drastically curtail the…
Electrosmog on the circuit board
— 6 Apr 2009 14:10 | TechnologyThe smaller the components in electronic circuits, the more interference-prone they are. If the components are too densely packed, they can interfere with one another. A near-field…
Nanocups brim with potential
— 22 Mar 2009 16:00 | TechnologyResearchers at Rice University have created a metamaterial that could light the way toward high-powered optics, ultra-efficient solar cells and even cloaking devices…
Team develops new metamaterial device
— 25 Feb 2009 13:50 | TechnologyAn engineered metamaterial proved it can function as a state-of-the-art device in the complex terahertz range of the electromagnetic spectrum, setting a standard of performance for…
New high frequency amplifier harnesses millimetre waves in silicon for fast wireless
— 12 Feb 2009 11:50 | TechnologyNew imaging and high capacity wireless communications systems are one step closer to reality, thanks to a millimetre wave amplifier invented at the University of California, San Diego…
Next generation cloaking device demonstrated
— 16 Jan 2009 13:34 | TechnologyA device that can bestow invisibility to an object by 'cloaking' it from visual light is closer to reality. After being the first to demonstrate the feasibility of such a device by…
Using invisibility to increase visibility
— 27 Nov 2008 11:20 | PhysicsResearch into the development of invisibility devices has spurred two physicists' thought on the behaviour of light to overcome the seemingly intractable problem of optical singularities…
Surface plasmon resonances of nanoparticles in array can have narrower spectral widths
— 15 Nov 2008 19:48 | PhysicsResearchers at the Harvard School of Engineering and Applied Sciences (SEAS) have demonstrated experimentally and theoretically that the surface plasmon resonances of metal nanoparticles…
Engineers identify conditions that initiate erosion
— 31 Oct 2008 15:12 | EnvironmentWind, water, and waves erode billions of tons of soil from the earth's surface. As a result, many rivers are plagued with excessive amounts of suspended sediment. According to the U.S.…