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PostPosted: Fri 20 Apr - 04:24 (2018)    Post subject: For 2017, Tu cautioned that the global investment Reply with quote

ROME, July 12 (Xinhua) -- At least 20 people were killed and dozens injured as two trains collided and clashed head-on in southern Italy on Tuesday, local media reported.

According to the latest reports of ANSA news agency and Rai state television, the collision happened on a single-track railway around 11:30 a.m. local time in the southern Puglia region.

After the incident, rescue operation was in full swing. Police, emergency personnel and ambulances rushed to the crash site, located in a countryside area between the towns of Ruvo di Puglia and Corato.

Firefighters were at work to extract survivors from the twisted metal of the first two cars on each train, but there could be more victims, according to ANSA sources.

Rai said all hospitals in the region were involved in the emergency operations. Three helicopters were also deployed to rush the most seriously injured passengers to nearby hospitals, including a child aged just a few years who was reportedly extracted from the wreck.

A technical failure could have led to the disaster, Rai said. The two regional trains, generally used by commuters and students, are run by an entirely private local company named Ferrotramviaria, it added.

"The situation is tragic. We saw two crumpled trains and a lot of people transported on several ambulances which were in trouble in reaching the open countryside," said a journalist at a local newspaper who rushed to the spot, Lucia Olivieri.

Italian Prime Minister Matteo Renzi immediately left Milan in northern Italy, where he was about to inaugurate an exhibition, for Rome. "We will not stop until we will have found those responsible for the accident," he stressed.

The last major rail disaster in Italy happened in 22 December 2009 when a freight train derailed in Viareggio, in the Central Italy's Tuscany region, more than 30 people confirmed dead in the accident.

by Levi J Parsons

SYDNEY Nike Air Huarache Red , Sept. 7 (Xinhua) -- A team of quantum engineers in Australia have published a major breakthrough in the world of quantum computing.

Scientists at the University of New South Wales' high-tech facility, the ARC Centre of Excellence for Quantum Computation and Communication Technology, have been at the cutting edge of fabricating silicon quantum computing chips from the ground up.

They were the first in the world to demonstrate the operation of a quantum bit made out of a single atom of phosphorus in silicon.

But these quantum bits or qubits were either made up of a single electron or a single nucleus.

"What we have discovered is that if we combined the electron and the nucleus together Nike Air Huarache White , we can make a new quantum bit that can be operated by electric fields and those flip-flop qubits can be coupled to each other at a very long distance, 200 nanometers!" team leader professor Andrea Morella told Xinhua.

"Of course it's still a very short distance, but it's much longer than what we thought would be necessary in the past."

"So instead of atoms being side by side Nike Air Huarache Black , we can now space them out on the chip, so that there is enough space to place classical electronics and the interconnecting wires between the qubits."

Described by Morella as a Eureka moment, the idea came when researchers were trying to couple single atom spins to superconducting circuits.

"We realized that if we combined the electron and the nucleus together and we pulled the electron away from the nucleus Nike Air Huarache Sale , we create and electric field," Morella explained.

"That allows us to couple two of these atoms at a much longer distance than would be possible by magnetic coupling."

In order to do this, the scientists use a nano fabrication lab and operate several machines that are able to modify the electrical properties of the silicon and deposit very small metallic electrodes on top of them.

"Once the chip is made Nike Air Huarache , it needs to be cooled down to extremely low temperatures for it to start behaving quantum mechanically and then it gets connected to some very fast electronics on the outside, that controls the quantum state of the individual atom and does quantum operations with it," Morella said.

Although the breakthrough is a huge step on the way to developing and integrating quantum computers for wide scale use Air Huarache All Red , there is still a long way to go before researchers can mass-produce the technology.

"Our goal is to make a prototype silicon quantum computer that has 10 qubits within the next five years," Morella said.

"So for this to become really practical and to make an impact in the world, we expect it to take another five to 10 years on top of that."

But according to Morella Air Huarache All Black , the upgrade to modern computers is much needed because there are certain problems that just can't be solved even by big classical supercomputers.

"Typical examples are the simulation of molecules and materials, they are themselves quantum objects and so the complexity of understanding molecules and materials grows exponentially with size," Morella said.

"So that's where you hit a brick wall."

"A quantum computer is naturally born to solve those kinds of problems."

China-Arab States Expo opens in NW China

UN conference on desertification opens in Inner Mongolia

Myanmar exports about 95 percent of fruits to China

In pics: China's future Mars simulation base in Qinghai

In pics: China's future Mars simulation base in Qinghai

Actors perform during acrobatics show in central China's Puyang

Colorful houses seen in N China's beautiful countryside

Spectacular scenery of Hukou Waterfall of Yellow River

MATOSINHOS Air Huarache All White , Portugal, May 23 (Xinhua) -- Following are the leading results from the Rally of Portugal after the second day on Saturday:

1. Jari-Matti Latvala (FinlandVolkswagen Polo-R) two hours 56 minutes 19.9 seconds

2. Sebastien Ogier (FranceVolk.

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