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Research & Technology News
“Sighted” wheelchair successfully test-driven
LULEÅ, Sweden – An electric wheelchair that uses a laser scanner to create a 3-D map of its surroundings and transfers the information to a haptic robot, enabling a visually impaired driver to navigate around obstacles, has been successfully tested. The “sighted” wheelchair was developed at Luleå University of Technology (LTU) by professor Kalevi Hyyppä and his team. Daniel Innala Ahlmark, a prospective graduate student in the research project, and himself visually impaired, made...
Aircraft inspectors can turn off heaters
CAMBRIDGE, Mass. – Aircraft manufacturers soon may not need large heaters or traditional infrared thermography techniques to detect internal damage in planes and other objects, thanks to a simple handheld device and heat-sensitive camera devised by scientists at MIT....
Bilayered nanocrystals could bring cleaner energy
BERKELEY, Calif. – New bilayered nanocrystals made of metal-metal oxide that feature multiple catalytic sites on nanocrystal interfaces could mean big things for industrial catalysis and for clean green energy technologies such as artificial photosynthesis. For the...
Diamond aerogel could improve optics
LIVERMORE, Calif. – A nanocrystalline diamond aerogel could spell big improvements to optics for applications as large as telescopes or as small as eyeglass lenses. At Lawrence Livermore National Laboratory (LLNL), a laser-heated diamond anvil cell and a standard...
Endeavour Crew Tests Critical Docking Sensor
DENVER, June 1, 2011 — In an unprecedented on-orbit maneuver, space shuttle Endeavour crew members completed the first-ever Orion Multi-Purpose Crew Vehicle (MPCV)-like approach to the International Space Station as part of the Sensor Test for Orion Relative Navigation...
Genetic tags illuminate life
SAN DIEGO – A new type of genetic tag made by modifying a plant protein has the potential to illuminate life in never-before-seen detail. Scientists from the University of California, San Diego (UCSD), School of Medicine have re-engineered a...
Glowing nanopillars light up cells
STANFORD, Calif. – A novel cellular research platform uses nanopillars that glow in such a way as to allow a deeper and more precise look into living cells. A Stanford University team led by chemist Bianxiao Cui developed the precise system of illumination. ...
Maritime laser sets boat afire in test
ARLINGTON, Va. – A solid-state high-energy laser (HEL) successfully disabled a small target vessel from a surface ship, an achievement that could offeradvanced self-defense to surface ships and personnel. The Office of Naval Research and Northrop Grumman...
Measuring wavefront aberrations of hard x-ray optics
ARGONNE, Ill. – Wavefront aberrations produced by imperfect hard x-ray optics can distort and broaden the focused spot of high-brightness x-ray beams. But a new method enables optimized positioning of existing optics along with quantitative feedback that can guide...
Nanoscale Waveguide Created for Future Photonics
BERKELEY, Calif., June 1, 2011 — The first true nanoscale waveguides for next-generation on-chip optical communication systems have been demonstrated by researchers at the Lawrence Berkeley National Laboratory. The new quasiparticle, called the "hybrid plasmon polariton," may throw...
Nanotubes Improve Fluorescence Imaging
STANFORD, Calif., June 1, 2011 — An improved imaging method using fluorescent carbon nanotubes allows researchers to see centimeters deep into a mouse with far more clarity than conventional dyes provide. For a creature the size of a mouse, a few centimeters makes a great...
Novel nanoparticles change color
COLUMBUS, Ohio – Tiny polymeric containers stuffed with red and green quantum dots promise to provide continuous light for biomedical imaging. Engineers at Ohio State University have invented nanoparticles that, somewhat unusually, glow red, green or yellow...
Simplified superlens captures IR light
BERKELEY, Calif. – Superlenses that are ideal for capturing light in the mid-infrared range now can be fabricated more easily. Made from perovskite oxides rather than metamaterials, these new devices could open the door to highly sensitive biomedical detection and...
Single sensor improves detection selectivity
CINCINNATI – A sensor that combines electrochemistry, spectroscopy and selective partitioning capabilities into one device has been developed and tested for components in nuclear waste. Unusual in that it offers more than two modes of selectivity, the highly...
Synchrotron enables faster, better tissue imaging
MILWAUKEE – A synchrotron-based imaging technique delivers intensity a million times brighter than sunlight – and offers high-resolution pictures of the molecular composition of tissues with high speed and quality. A team of researchers from the...
T-rays produced by quantum cascade laser
PARIS – For the first time, terahertz rays, or T-ray pulses, have been made to emit separate “packets” of terahertz radiation – rather than one continuous beam – from a quantum cascade laser. The finding could open new doors for...
Ultrafast free-space communications achieved with lasers
HOBOKEN, N.J. – A new high-speed communications technology that is not limited by a physical conductor, such as fiber optics, uses laser light to transmit data through readily available open space. This optical free-space technology could revolutionize...
Imaging and Display Innovations Earn Hugo Geiger Prizes
MUNICH, Germany, May 31, 2011 — An improved computer tomography system, a multitouch display that recognizes hand gestures, and a method to simultaneously measure terahertz transmission and reflection have earned their creators Hugo Geiger Prizes from Fraunhofer Gesellschaft. The...
Imaging Method Helps Identify Specific Mental States
STANFORD, Calif., May 27, 2011 — Distinct mental states can be distinguished using a form of functional magnetic resonance imaging (fMRI) to detect unique patterns of activity in coordinated "networks" within the brain. The technique, developed by researchers at Stanford University...
New Electronics Material Closer to Commercial Reality
WEST LAFAYETTE, Ind., May 27, 2011 — Researchers have developed a method for creating single-crystal arrays of graphene, an advance that opens up the possibility of a replacement for silicon in high-performance computers and electronics. Graphene — a one-atom-thick layer of...
Reindeer See Wonderful World of UV Light
WILTSHIRE, England, May 27, 2011 — The same ultraviolet light that can cause temporary snow blindness in humans is the very same light that is life-saving for reindeer in the arctic. Humans are able to see light with wavelengths ranging from around 700nm, which corresponds to the...
10-Year Study Shows Electron Is Surprisingly Spherical
LONDON, May 26, 2011 — Using a very precise laser, physicists have made the most accurate measurement of the shape of an electron, deeming it 0.000000000000000000000000001 cm from being perfectly round. This means that if the electron were magnified to the size of the...
ESO’s VLT Finds a Brilliant but Solitary Superstar
ARMAGH, Northern Ireland, May 26, 2011 — Using the European Southern Observatory’s Very Large Telescope (VLT), astronomers have found that the star VFTS 682 is about 150 times the mass of the sun. But unlike other massive stars that have thus far been found only in the crowded...
First Fluorescent Protein 3-D Hologram Created
EDINBURGH, Scotland, May 26, 2011 — Holoxica, a company spun out from the University of Edinburgh, has made the first medical imaging hologram of a green fluorescent protein (GFP) structure, allowing scientists to visualize the structure without any glasses or other visual aids. This...
Flexible Solar Cells Set Efficiency Record
DÜBENDORF, Switzerland, May 24, 2011 — An efficiency record of 18.7 percent for flexible copper indium gallium selenide (CIGS) solar cells on plastics has been reported by Swiss researchers at Empa’s Laboratory for Thin Film and Photovoltaics. "The new record value for...
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April 2024
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