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Date: 21 November 2009
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Rna Research List  
Records 1-20 of 527  |  Go to 1 2 3 4 5 ... 27 Next >> page 

Can superconducting rings provide clues to the early development of the universe?

Location: Nepoli, France

Watching a metal transform into a superconductor, it may not be obvious that this transition provides access to some of the same physics that governed the cooling of the universe following the Big Bang. Yet at the root of both of these...

Shifting entropy elsewhere : New methods for lowering the entropy of ultracold gases may allow observation of more subtle quantum materials.

Location: Berkeley, United States

Ultracold atoms are still too hot. This may seem a ridiculous claim—after all, the low-temperature exploits of the purveyors of quantum gases are notorious. Laser cooling can flash-freeze atoms to temperatures in the micro- and nanokelvin...

Total synthesis and study of 6-deoxyerythronolide B by late-stage C–H oxidation

Location: Illinois, United States

Among the frontier challenges in chemistry in the twenty-first century are the interconnected goals of increasing synthetic efficiency and diversity in the construction of complex molecules.

Oxidation reactions of C–H bonds,...

Using Nanotubes in Computer Chips : A new technique for growing carbon nanotubes should be easier to integrate with existing semiconductor manufacturing processes

Location: Cambridge, United States

Source: "Low Temperature Synthesis of Vertically Aligned Carbon Nanotubes with Electrical Contact to Metallic Substrates Enabled by Thermal Decomposition of the Carbon Feedstock," Gilbert Nessim, Carl V. Thompson et al, Nano...

Cement's basic molecular structure finally decoded : Robustness comes from messiness, not a clean geometric arrangement

Location: Cambridge, United States

In the 2,000 or so years since the Roman Empire employed a naturally occurring form of cement to build a vast system of concrete aqueducts and other large edifices, researchers have analyzed the molecular structure of natural materials and...

Evaluating the Web Search Engines Quality: Point of User View

Location: Dhaka, Bangladesh

Abstract :

 

This paper presents an evaluating method of the Web search engines quality. A large number of...

NanoPen: Dynamic, Low-Power, and Light-Actuated Patterning of Nanoparticles

Location: California, United States

Abstract:

The ability to pattern nanostructures has important applications in medical diagnosis,(1, 2) sensing,

Illuminating molecules from within : Calculations show that with new short pulse x-ray light sources, it should be possible to use photoelectron emission to make movies of changes in molecular structure.

Location: Berkeley, United States

Much of our knowledge about molecular structure and reactivity is based on interpreting how molecules interact with light. In particular, time-resolved pump-probe studies where a first “pump” laser pulse initiates a dynamical event,...

Adaptive Fuzzy-Artificial Neural Network Based Speed Controller of DC Motor Drive

Location: Khulna, Bangladesh

This Research introduces a DC motor drive system with a fuzzy-artificial neural-network controller. First, a neural network-based architecture is described for fuzzy logic control. The characteristic rules and their membership functions of...

Observability and observer design for kinetic networks

Location: Mont Saint Aignan, France

In this paper, researchers deal with the observability and observer design of a certain class of reactors (batch reactors) which are globally asymptotically feedback stabilisable. They show how to design two types of high-gain observers: a...

Robots swim with the fishes : New robots mimic fish's swimming, could be used in underwater exploration

Location: Cambridge, United States

Borrowing from Mother Nature, a team of MIT researchers has built a school of swimming robo-fish that slip through the water just as gracefully as the real thing, if not quite as fast.

Mechanical engineers Kamal Youcef-Toumi and Pablo...

Pushing the envelope of general relativity

Location: Tokyo, Japan

Einstein introduced general relativity in the early 20th century, and since then it has been proven to be an accurate description of gravity beyond the regime of validity of Newtonian gravitation. Since then, people have been asking...

Confinement of Electrons to Diamond Isotopes : Super lattice structure realized using only carbon

Location: Tsukuba, Japan

Among all available materials, diamond has the optimal characteristics with respect to hardness, thermal conductivity, light transmission wavelength range, and chemical stability. Furthermore, as a semiconducting material, diamond shows...

A better way to pinpoint underground oil reserves : CEE mapping technology could make extraction more efficient

Location: Cambridge, United States

An accurate map of a large underground oil reservoir that can guide engineers' efforts to coax the oil from the vast rocky subsurface into wells where it can be pumped out for storage or transport.

Researchers in MIT's Department of...

Robo-forklift keeps humans out of harm's way : Could allow military to handle supplies without risk to people

Location: Cambridge, United States

Researchers in MIT's Computer Science and Artificial Intelligence Laboratory (CSAIL) are working on a better way to handle supplies in a war zone: a semi-autonomous forklift that can be directed by people safely away from the dangers of the...

More power from bumps in the road : energy-harvesting shock absorbers

Location: Cambridge, United States

A team of MIT undergraduate students has invented a shock absorber that harnesses energy from small bumps in the road, generating electricity while it smoothes the ride more effectively than conventional shocks. The students hope to...

Researchers make carbon nanotubes without metal catalyst : Oxides, as well as metals, seem to be able to sprout carbon nanotubes, study finds

Location: Cambridge, United States

Carbon nanotubes - tiny, rolled-up tubes of graphite - promise to add speed to electronic circuits and strength to materials like carbon composites, used in airplanes and racecars. A major problem, however, is that the metals used to grow...

New rocket aims for cheaper nudges in space : Plasma thruster is small, runs on inexpensive gases

Location: Cambridge, United States

Satellites orbiting the Earth must occasionally be nudged to stay on the correct path. MIT scientists are developing a new rocket that could make this and other spacecraft maneuvers much less costly, a consideration of growing importance as...

Knowing when to fold : Engineers use 'nano-origami' to build tiny electronic devices

Location: Cambridge, United States

Folding paper into shapes such as a crane or a butterfly is challenging enough for most people. Now imagine trying to fold something that's about a hundred times thinner than a human hair and then putting it to use as an electronic device....

'Nanostitching' could lead to much stronger airplane skins, more

Location: Cambridge, United States

MIT engineers are using carbon nanotubes only billionths of a meter thick to stitch together aerospace materials in work that could make airplane skins and other products some 10 times stronger at a nominal increase in cost.

Moreover,...

Records 1-20 of 527  |  Go to 1 2 3 4 5 ... 27 Next >> page 
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