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MessagePosté le: Dim 8 Avr - 07:39 (2018)    Sujet du message: with semiconductor Répondre en citant

STOCKHOLM, Aug. 22 (Xinhua) -- An eight-year-old boy who was killed on Monday in an explosion in Gothenburg could be the latest innocent victim of the city's gang wars.

The boy is the second child in nearly a year to be caught in violence between criminal gangs. He died when a hand grenade was thrown into the window of an apartment in the Biskopsgarden suburb of Gothenburg, Sweden's second largest city.

According to the police, there were several children in the apartment, which was destroyed in the powerful explosion. The incident happened around 3 a.m.(0100 GMT) on Monday and police suspect that it may have been a revenge action in response to a shootout last year where two people were killed and eight were wounded. Several innocent standers-by were injured in that shooting, too.

It is unusual for innocent people, and especially children, to be caught up in gang warfare in Sweden, but there are fears that the gangs are becoming more ruthless and more ready to take their conflicts to the streets and other places were standers-by can be affected, Swedish media report.

In June last year, a four-year-old girl was on her way home from a fishing trip with her father in Gothenburg when a car bomb detonated and killed her. That bomb, too, was linked to criminal gangs. Enditem
American girl Lindsay has launched a website to help Chinese people choose appropriate English names. (PhotoSouthern Metropolis Daily)
Lindsay Bottes Ugg Bailey Bow Mini 1005062 Noir Pas Cher , a 25-year-old woman from the U.S., has launched a website to help Chinese people choose appropriate English names.

On the "Best English Names" website, users pay 15 yuan (about $2.5) to access an online test, designed by Lindsay's team, Southern Metropolis Daily reports.

The test consists of 10 questions about the user's character and requirements for a name Ventes Bottes Ugg Bailey Button Basse 5803 Camel , and on completion the user receives five English name recommendations.

Nearly 400 people are paying for the test each day.

The website's daily page views have reached more than 2,000, with visitors being predominantly young women from Hangzhou, Kunming, Shanghai Bottes Ugg Bailey Button Basse 5803 Sable Femme Acheter , Wenzhou, Chengdu and other cities in China, who are preparing applications to study abroad.

Lindsay previously worked in Shanghai and her idea to launch the website was inspired by the strange names chosen by some of the Chinese people she met. Often, the unusual names left a bad impression on foreign bosses and colleagues.

Lindsay likes experiencing different cultures and she hopes her website would develop into a platform for cultural exchange.

SAN FRANCISCO, May 20 (Xinhua) -- Stanford University electrical engineering Professor Jelena Vuckovic and colleagues at her laboratory are working on new materials that could become the basis for quantum computing.

While silicon transistors in traditional computers push electricity through devices to create digital ones and zeros Moins Cher Bottes Ugg Bailey Button Basse 5803 Noir , quantum computers work by isolating spinning electrons inside a new type of semiconductor material. When a laser strikes the electron, it reveals which way it is spinning by emitting one or more quanta, or particles, of light.

Those spin states replace the ones and zeros of traditional computing.

In her studies of nearly 20 years, Vuckovic has focused on one aspect of the challenge: creating new types of quantum computer chips that would become the building blocks of future systems.

The challenge is developing materials that can trap a single Bottes Ugg Bailey Button Triplet 1873 Noir Outlet , isolated electron.

To address the problem, the Stanford researchers have recently tested three different approaches, one of which can operate at room temperature, in contrast to what some of the world's leading technology companies are trying with materials super-cooled to near absolute zero, the theoretical temperature at which atoms would cease to move.

In all three cases Bottes Ugg Bailey Button Triplet 1873 Camel Outlet , according to a news release from Stanford, the researchers started with semiconductor crystals, namely materials with a regular atomic lattice like the girders of a skyscraper. By slightly altering this lattice, they sought to create a structure in which the atomic forces exerted by the material could confine a spinning electron.

One way to create the laser-electron interaction chamber is through a structure known as a quantum dot, or a small amount of indium arsenide inside a crystal of gallium arsenide. The atomic properties of the two materials are known to trap a spinning electron.

In a paper published in Nature Physics Bottes Ugg Bailey Button Triplet 1873 Gris Acheter , Kevin Fischer, a graduate student in the Vuckovic lab, describes how the laser-electron processes can be exploited within such a quantum dot to control the input and output of light. By sending more laser power to the quantum dot, the researchers could force it to emit exactly two photons rather than one. It has advantages over other leading quantum computing platforms but still requires cryogenic cooling.

So, the result may not be useful for general-purpose computing Pas Cher Bottes Ugg Bailey Button Triplet 1873 Sable , but quantum dot could have applications in creating tamper-proof communications networks.

Another way to electron capture, as Vuckovic and her colleagues have investigated in two other cases, is to modify a single crystal to trap light in what is called a color center.

In a paper published in NanoLetters, Jingyuan Linda Zhang, a graduate student in Vuckovic's lab Bottes Ugg Bailey Button Bling Triplet Haute 1007252 Noir Soldes , described how a 16-member research team replaced some of the carbon atoms in the crystalline lattice of a diamond with silicon atoms. The alteration created color centers that effectively trapped spinning electrons in the diamond lattice.

Like the quantum dot, however, most diamond color center experiments require cryogenic cooling.

Therefore, in another NanoLetters paper, first author Marina Radulaski Bottes Ugg Bailey Button Mini 3352 Femme Camel Outlet , a postdoctoral fellow in Vuckovic's lab, and other researchers described their experiment with a third material, silicon ca. Cheap Chelsea Jerseys   Cheap Atletico Madrid Jerseys   Cheap Arsenal FC Jerseys   Cheap Sevilla FC Jerseys   Cheap Manchester United FC Jerseys   Wholesale Manchester City Jerseys   Wholesale Borussia Dortmund Jerseys   Wholesale FC Bayern Munich Jerseys   Wholesale FC Barcelona Jerseys   Wholesale Tottenham Hotspur FC Jerseys 


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MessagePosté le: Dim 8 Avr - 07:39 (2018)    Sujet du message: Publicité

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