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Location: Albama, United States
The circuit in Figure 1 uses current-feedback amplifiers to implement a wideband full-wave rectifier for applications such as a control/AGC system reference or as an amplitude indicator. Putting the full-wave-rectifier diodes in the feedback...
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Location: National Park Service,,Williston, Vermont, United States
Powered by mere vibrations or the movement of magnets, novel sensors and transmitters developed by a small company in Vermont are changing the way engineers are looking at fatigue.
Communicating wirelessly via the Internet to engineers halfway...
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Location: Los Angeles, CA 90089, United States
At the IEEE International Solid-State Circuits Symposium, Assistant Professor Hossein Hashemi of the USC Ming Hsieh department of electrical engineering will discuss two radar chips created in his laboratory, both of which detect and generate...
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Location: MIT,Cambridge, MA 02139, United States
In work that could dramatically boost the capabilities of "lab on a chip" devices, MIT researchers have created a way to use tiny bubbles to mimic the capabilities of a computer.
The team, based at MIT's Center for Bits and Atoms, reports that...
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Location: Department of Chemical Engineering
Massachusetts Institute of TechnologyRoom 66-45477 Massachusetts Ave
Cambridge MA 02139, United States
Icelanders, who get most of their heating, hot water and a good portion of their electricity from geothermal sources, are well aware that Reykjavik, which means "Smoky Bay," is named for the steam from the local hot springs. In the United States,...
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Location: Chicago, United States
Ghostly galaxies composed almost entirely of dark matter speckle the universe. Unlike normal galaxies, these extreme systems contain very few stars and are almost devoid of gas. Most of the luminous matter, so common in most galaxies, has been...
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Location: Nasa city, United States
Physicists at JILA are using ultrashort pulses of laser light to reveal precisely why some electrons, like ballet dancers, hold their spin positions better than others—work that may help improve spintronic devices, which exploit the magnetism or...
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Location: Washington University in Saint Louis, Saint Louis, Missouri, United States
Agent 007 is a mighty versatile fellow, but he would have to take backseat to agents being trained at Washington University in St. Louis.
Computer scientist engineers here are using wireless sensor networks that employ software agents that...
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Location: 110 Eighth Street, Troy,New York 12180-3590, United States
How do you study molecules like proteins that change shapes in complex ways, and are too small to see? You need to get small and think fast.
To enter Angel Garcia’s world is to enter a virtual reality. Garcia uses computer simulation to model...
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Location: Baton Rouge, LA 70803,Louisiana ,, United States
Subhash Kak, Delaune Distinguished Professor of Electrical and Computer Engineering at LSU, recently resolved the twin paradox, known as one of the most enduring puzzles of modern-day physics.
First suggested by Albert Einstein more than 100...
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Location: MIT Plasma Science & Fusion Center ,
77 Massachusetts Avenue,NW17-186,Cambridge, MA 02139, United States
Know about Fusion
e absolutely no charge at all. These nucleons are held together by a powerful force, known as the strong force. The amount of energy you would have to expend to overcome the strong force and dismantle the nucleus is...
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Location: Planetary and Space Sciences Research Institute,
The Open University,Walton HallMilton Keynes
,MK7 6AA,UK, United Kingdom
A UK team is developing a concept mission that aims to land a spacecraft on the potato-shaped object and grab material off its surface.
These small rock fragments would then be despatched to Earth in a capsule. "It is being seen as a...
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Location: CNRS/University Victor Ségalen, Bordeaux, France
There are two phases in the genesis of a movement directed towards a target when several choices are possible: firstly decision-making (cognitive information) and then the direction of this movement towards to the target (motor information). The...
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Location: CEA,, France
Astronomers have found a new class of objects in space: a neutron star orbiting inside a cocoon of cold gas and/or dust that hides a bloated supergiant star. In a strange twist of fate, these objects may be tremendously luminous, but the...
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Location: Evanston, IL,, United States
1d nanostructures such as semiconductor nanowires; recently developed synthetic methods suggest ways to engineer the electronic, optical, and magnetic properties of semiconductor nanowires by varying composition on the nanometer scale. A few of...
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Location: Cambridge, MA, USA, United States
This paper describes the status of the 2004 edition of the HITRAN molecular spectroscopic database. The HITRAN compilation consists of several components that serve as input for radiative transfer calculation codes: individual line parameters for...
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Location: Department of Aerospace Engineering, University of Michigan, Ann Arbor
FXB Building 1320 Beal Avenue Ann Arbor, Michigan 48109-2140 , United States
The University of Michigan Department of Aerospace Engineering can boast among its many resources 10 wind tunnels for instructional and research work. These tunnels are run by the Gas Dynamics Laboratories (GDL), which consists of a closely...
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Location: Michigan,College of Engineering, University of Michigan, United States
The first detailed images of a binary asteroid system reveal a bizarre world where the highest points on the surface are actually the lowest, and the two asteroids dance in each other's gravitational pull.
A binary asteroid is a system where...
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Location: Newark, DE 19711,New Castle, United States
Applications of dynamics and control range from manufacturing to medical rehabilitation, from vibration damping in aircraft to the assembly of satellite parts in outer space. As manufacturing processes become more complex and the performance...
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Location: New Jersey,Princeton, NJ 08544, United States
As they eliminate tiny air bubbles that form when liquid droplets are molded into intricate circuits, a Princeton-led team is dissolving a sizable obstacle to the mass production of smaller, cheaper microchips.
Led by Stephen Chou, the...
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