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Scientific News
Scientific News Electronics engineering

  COMPACT FUEL CELLS COULD OUST BATTERIES
HOT on the heels of a warning about the mounting energy demands of smart cellphones comes a ray of hope. Cellphone giant Nokia last week warned that battery technology is not keeping pace with advanced phone functions - but a trick that boosts the power of miniature hydrogen fuel cells by up to 50 per cent could help keep energy-hungry gadgets up and running.

  ALCHEMY WITH LIGHT
YOU don’t often see claims of "unexpected and stunning new physical phenomena" in the abstract of a reputable scientific paper. But the latest report by photonics crystal pioneer John Joannopoulos and his group at MIT, soon to be published in Physical Review Letters, does not disappoint. The researchers document the ultimate control over light: a way to shift the frequency of light beams to any desired colour, with near 100 per cent efficiency.

  OSU ENGINEERS CREATE WORLD’S FIRST TRANSPARENT TRANSISTOR
Engineers at Oregon State University have created the world’s first transparent transistor, a see-through electronics component that could open the door to many new products.

  COOL RUNNING SEMICONDUCTORS
Solid-state semiconductors don’t handle heat very well. If they’re operated at high power they tend to burn out. Heat poses other problems as well--the hotter the device, the greater the electrical resistance (and the lower the efficiency).

  PLASTIC SHOWS PROMISE FOR SPINTRONICS, MAGNETIC COMPUTER MEMORY
Researchers at Ohio State University and their colleagues have expanded the possibilities for a new kind of electronics, known as spintronics.

  BRING ON THE LIGHT: ENERGY-SAVING FLUOROS
A new device from the United States could make fluorescent lighting even more efficient than it already is. Standard fluorescent lights save four times more energy than an ordinary light bulb, but they’re still wasteful, and more efficient versions are expensive.

  BREAKTHROUGH MADE IN ELECTRONICS TECHNOLOGY
Researchers at Oregon State University have made a significant breakthrough in the technology to produce crystalline oxide films, which play roles in semiconductor chips, flat panel displays and many other electronic products.

  UNUSUAL CERAMICS COULD EXPAND POSSIBILITIES FOR SUPERCONDUCTORS
Ceramic materials with "split personalities" could lead to new high-temperature superconductors, according to physicists at Ohio State University and their colleagues.

  RESEARCHERS MOVE STEP CLOSER TO PHOTONIC MICROCHIP
Researchers at the University of Toronto have figured out a way to "nudge" nature into making photonic crystals in a specific order and pattern, a critical first step in the development of photonic circuits and microchips.

  PHYSICISTS IDENTIFY POSSIBLE NEW SUPERCONDUCTOR
A potential new high-temperature superconductor has been identified by physicists at the University of California, Davis. Calculations by Helge Rosner, Alexander Kitaigorodsky and Warren Pickett predict that lithium borocarbide should have essentially no resistance to electrical current at temperatures up to minus 280 F.

  NEW SUPERCONDUCTING TRANSFORMER IS LIGHT AND COMPACT
Researchers from the Technology Foundation STW and the University of Twente, in cooperation with Smit Transformatoren and Smit Draad, have developed a prototype coil for a superconducting transformer which is not only light and compact but also energy-efficient. A keen interest has already been expressed by several companies.

  NANOWIRE-BASED ELECTRONICS AND OPTICS COMES ONE STEP CLOSER
An entirely new generation of powerful ultra-small computers and electronic devices is one step closer, according to researchers at the University of California-Berkeley. Their work, and that of a Swedish team, is reported in the February issue of the peer-reviewed journal Nano Letters, published by the American Chemical Society, the worlds largest scientific society.

  NANOWIRE-BASED ELECTRONICS AND OPTICS COMES ONE STEP CLOSER
An entirely new generation of powerful ultra-small computers and electronic devices is one step closer, according to researchers at the University of California-Berkeley. Their work, and that of a Swedish team, is reported in the February issue of the peer-reviewed journal Nano Letters, published by the American Chemical Society, the worlds largest scientific society.

  RESEARCHERS DEVELOP WORLD’S FIRST LIGHT-TUNABLE ’PLASTIC’ MAGNET
Low-cost, flexible electronics and better computer data storage might result from the world’s first light-tunable plastic magnet, just developed at Ohio State University. With colleagues at the University of Utah, researchers here developed a plastic material that becomes 1.5 times more magnetic when blue light shines on it. Green light partially reverses that effect.

  WORLDS SMALLEST MICROCHAIN DRIVE FABRICATED AT SANDIA
A microchain that closely resembles a bicycle chain except that each link could rest comfortably atop a human hair - has been fabricated at the Department of Energys Sandia National Laboratories. (The distance between chain link centers is 50 microns. The diameter of a human hair is approximately 70 microns.)

  SENSOR, MOLECULAR DEVICE DEVELOPMENT FOCUS OF NSF FUNDED RESEARCH
Two Virginia Tech research projects -- to develop new sensors for detecting pathogens and DNA, and to improve molecular devices in electronic applications -- received Nanoscale Exploratory Research (NER) grants from the National Science Foundation (NSF).

  NO INCREASED RISK OF BRAIN CANCER FROM ELECTROMAGNETIC FIELDS
Exposure to electromagnetic fields does not increase the risk of developing a brain tumour, finds a study of electricity industry workers, reported in Occupational and Environmental Medicine.

  COMPUTERS CLOSER TO THE SPEED OF LIGHT
Australian scientists have used their expertise in solar cells to develop a more efficient silicon light-emitting diode, providing a new platform for faster computing and data transfer. The development, reported in 23 August 2001 Nature by Martin A. Green and colleagues at the University of New South Wales, will mean microelectronics can take better advantage of the speed of optical data transfer.

  NSF AWARDS INTERDISCIPLINARY PENN TEAM $1.45 MILLION TO STUDY, DEVELOP BUILDING BLOCKS OF NANOSTRUCTURES
The National Science Foundation has awarded $1.45 million to scientists at the University of Pennsylvania, establishing a new Nanotechnology Science and Engineering Center that will seek out the building blocks of next-generation nanostructures.

  NANO-SCALE TOOLBOX GROWS
The toolbox for molecular-scale electronics is growing with the creation of a new transistor that switches on and off with the movement of a single electron.

  RADIATION-RESISTANT CHIPS FOR STURDIER SATELLITES
Space is a tough environment for electronics. A burst of radiation from a solar flare can damage a satellite’s delicate circuits and knock years off its working life. Now research by a University of California, Davis, engineering student is pointing the way to more radiation-resistant microchips.

  NEW TECHNOLOGY BASED ON THE DNA MOLECULE ARRANGEMENT PRINCIPLE HELPS TO REPRODUCE MINUTE ELECTRONIC NANO-SCHEMES UNDER A PRESET PROGRAM
Robots, capable to self-assembling from units with a size of smaller than that of a bacterium, seem to come from fantastic movies. Scientists from Pennsylvania State University used DNA to encourage gold wires with a cross-section of 1x10^(-6) mm to occupy certain positions on the surface to form a nano-electric scheme on the boarders.

  DVD POISED TO TAKE OVER FROM VHS IN THE HOME VIDEO MARKET
The uptake of DVD is growing at an exponential rate that will see DVD hardware in 30% of households across Europe in less than three years, says a report published today by Screen Digest.


 

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