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WASHINGTON, May 20 (Xinhua) -- Two U.S. astronauts conducted the first of four spacewalks for space shuttle Endeavour's STS-134 mission on Friday morning, the U.S. National Aeronautics and Space Administration (NASA) said.According to the U.S. space agency, Endeavour's mission specialists Andrew Feustel and Greg Chamitoff completed the six-hour, 19-minute spacewalk at 9:29 a.m. EDT (1329 GMT). They successfully installed antennas for the External Wireless Communication system, routing cables, setting up the antenna, installing handrails, and connecting power cables.Because of a carbon dioxide sensor failure in Chamitoff's spacesuit, flight controllers limited his spacewalk time to about six hours 20 minutes, 10 minutes less than the planned six hours and 30 minutes. There was no indication his suit's carbon dioxide levels would rise. However, they deferred tasks to remove a micrometeoroid debris shield to access and attach some of the connection points.This was the 245th spacewalk conducted by U.S. astronauts. It was Feustel's fourth spacewalk for a total time of 27 hours and 17 minutes, and Chamitoff's first.Endeavour lifted off on Monday morning from Kennedy Space Center in Florida, to deliver to the International Space Station a 2-billion-dollar, multinational particle detector known as the Alpha Magnetic Spectrometer (AMS).AMS, a particle physics detector, is designed to search for various types of unusual matter by measuring cosmic rays. Its experiments are designed to help researchers study the formation of the universe and search for evidence of dark matter, strange matter and antimatter.

BEIJING, Feb. 5 (Xinhua) -- China's railways transported about 77.34 million passengers during the fifteen days (Jan. 19 to Feb. 2) before the Spring Festival, the Ministry of Railways said.The figure was about 9.5 percent higher than the same period last year and set a new record, according to a report posted on the ministry's website.There were an average of 5.16 million passengers per day, up 448,000 from the same period last year. On Jan. 29, passengers topped 5.78 million, setting a new record for daily transportation before the Spring Festival, the report said.In the fifteen days before the festival, about 4.80 million passengers left Beijing, 8.39 million left Guangzhou and 5.69 million left Shanghai, while year-on-year growth and those leaving Guangzhou rose the most, up 15 percent year on year, said the report.The ministry said challenges still exist as more snow and rain will hit southern China after the Spring Festival, when passengers are returning.China's busy Spring Festival transportation season runs for 40 days and is calculated in two phases: 15 days before the Spring Festival and 25 days after the Spring Festival, the report explained.

JERUSALEM, May 8 (Xinhua) -- Israeli researcher Jacob (Koby) Scheuer, from the Tel Aviv University (TAU) School of Electrical Engineering, has developed a nano-scale gyroscope, the Ha'aretz daily reported Sunday.Scheuer developed a new optic-fiber nano-sensor four years ago, along with an optic gyroscope that works in conjunction with the sensor. As he developed the devices, it occurred to him that his discovery could be harnessed to surgical needs, virtual reality, or communications, said the report."What we developed here is an optic gyroscope," Scheuer told Xinhua in a recent interview on Sunday, "like the others, but the breakthrough is that we found a way to measure rotation in a very, very small device using the optic sensor."Optic gyroscopes emit light when they rotate, and change its wavelength when there is any change in the speed of rotation, making it possible to measure velocity and position by the differences in light.Scheuer's gyroscope, however, is so small in comparison to the others commonly used in planes, trains and vehicles, that it can be used in cell phones or watches and does not need satellite connection like the ubiquitous Global Positioning System.The applications of this gyroscope and optic sensor are almost endless, as Scheuer puts it."It can be a pill that you swallow and can move through your body to take pictures or release drugs in a localized area," the researcher explained, "or it can be used by a doctor to operate on a patient who is thousands of kilometers away.""Our gyroscope has complete independent navigation capability, which the others don't have," he stressed.Though the new optic gyroscope works in theory, it still hasn't been tried in out in reality. "It will take some time until we can empirically demonstrate our work, I would say about three to five years," Scheuer added.Alongside the gyroscope, Scheuer continues to work on the optic sensor, whose applications can also be found in security, such as an information security system developed by Scheuer to safeguard online information that acts as a key bearer."When both parties have 'the key' it's virtually impossible to hack the information sent," Scheuer noted, terming the development as a "total paradigm change."

HOUSTON, May 2 (Xinhua) -- The Offshore Techonology Conference, one of the world's largest offshore technology shows, kicked off here Monday.The five-day event, which attracted an estimated 72,000 victors from all around the world, not only provided a platform for the about 2,400 participating companies from 40 countries to lure visitors with their newest products and technologies, but also for the them to share insights and discuss issues the industry is facing.On Monday, a number of companies, including Halliburton and Baker Hughes, received the Spotlight on New Technology Award by the OTC for their new products and solutions.Founded in 1969, the annual Offshore Technology Conference is the world's foremost event for the development of offshore resources in the fields of drilling, exploration, production, and environmental protection. OTC is held annually at Reliant Center in Houston.

CONAKRY, Feb. 14 (Xinhua) -- Guinean President Alpha Conde said Monday while meeting with visiting Chinese Foreign Minister Yang Jiechi that Guinea hopes to expand cooperation with China in a wide range of fields.Conde said Guinea values the traditional friendship with China, is grateful to China's assistance to Guinea under the framework of the Forum on China-Africa Cooperation, and appreciates the contribution China has made to the peace and common development of the world as well as the recovery of world economy from the global financial crisis.He reiterated Guinea's adherence to the one-China policy, and said the country is willing to learn from China's development experiences. Guinea hopes to further expand cooperation with China in such fields as water resources management, electricity generation and infrastructure building, said the president, who also welcomed Chinese companies to invest in Guinea.Also in a meeting with the visiting Chinese foreign minister, Guinea's Prime Minister Mohamed Said Fofana thanked China for sending medical teams to Guinea, helping Guinea train personnel in various sectors and constructing a series of aid projects in the African country. Fofana said Guinea expects to carry out all- around and mutually beneficial cooperation with China.For his part, the Chinese foreign minister said China-Guinea relations have been enjoying healthy and stable development throughout a period of over half a century, featuring political equality, mutual benefit and friendship.Yang said China has always been supporting Guinea's strive for peace and stability, and offering assistance for Guinea in social and economic development. He said enterprises from both sides have been carrying out cooperation in such realms as telecommunications, infrastructure building, among others.Yang said Guinea has successfully completed a political transition, and under the leadership of President Conde, the country will surely make more achievements in social and economic development. He noted that China is willing to make joint efforts with Guinea to consolidate traditional friendship, expand cooperation and push bilateral relations to a new height.The visiting foreign minister, who arrived here on Sunday, also met with his Guinean counterpart Edouard Niankoye Lama on Monday on bilateral cooperation and a number of other issues.

来源：资阳报