宜宾什么是线雕鼻(宜宾割双眼皮要多钱) (今日更新中)

BEIJING, Nov. 3 (Xinhua) -- Two Chinese spacecraft accomplished the country's first space docking procedure early Thursday, silently coupling in space more than 343 km above Earth's surface.Nearly two days after it was launched, the unmanned spacecraft Shenzhou-8 docked with space lab module Tiangong-1 at 1:36 a.m., marking another great leap for China's space program.The success of the docking procedure makes China the third country in the world, after the United States and Russia, to master the technique, moving the country one step closer to establishing its own space station.A video grab taken from the China Central Television on Nov.3, 2011 shows the Shenzhou-8 spacecraft docking with the Tiangong-1 space lab module. Unmanned spacecraft Shenzhou-8 docked with space lab module Tiangong-1 early Thursday, according to the Beijing Aerospace Control Center.President Hu Jintao, who is in France for the G-20 summit, sent a congratulatory message on the success of the country's first-ever space docking."Breakthroughs in and acquisition of space docking technologies are vital to the three-phase development strategy of our manned space program," Hu said in the message.Hu said he wishes all the program participants to try all out to fulfill a complete success of the whole mission after the smooth docking.Other leaders, including Wu Bangguo, Wen Jiabao, Li Changchun, Xi Jinping, Li Keqiang, He Guoqiang and Zhou Yongkang, who are Standing Committee members of the Political Bureau of the Communist Party of China Central Committee, watched the mission at the Beijing Aerospace Flight Control Center.China is now equipped with the basic technology and capacity required for the construction of a space station, said Zhou Jianping, chief designer of China's manned space program."This will make it possible for China to carry out space exploration on a larger scale," he said."The capability increases China's ability to act independently in space, as well as its ability to cooperate with others," said Gregory Kulacki, senior analyst and China project manager at the global security program of the Union of Concerned Scientists, a nonprofit scientific advocacy group based in the United States."China's pursuit of an original solution to space docking, that is based on their understanding of the experience of other nations, could lead to innovations or experiences other space-faring nations could find useful," Kulacki said.The world's first space docking was achieved in 1966, when the manned U.S. spacecraft Gemini 8 docked with an unmanned Agena Target Vehicle.Forty-five years later, the maneuver remains a technological challenge. Many of mankind's 300-plus attempts have been met with difficulties or resulted in failure."To link up two vehicles traveling at 7.8 km per second in orbit, with a margin of error of no more than 20 centimeters, is like 'finding a needle in a haystack'," Zhou said.The Shenzhou-8 and Tiangong-1 will separate after flying together for 12 days. After that a second docking procedure will be conducted.Rendezvous and docking, essential to exploring space beyond Earth's orbit, create the possibility of building space stations, resupplying them, transferring astronauts and rescuing them.Without this key know-how, exploration of the moon and beyond requires carrier rockets with significant amounts of thrust. China does not currently possess rockets of this magnitude.Shenzhou-8 and Tiangong-1 both weigh about 8 metric tons, well within the delivery capacity of the Long March 2F rocket. A permanent orbiting space station is designed to be as heavy as 60 metric tons, with docking ports accommodating both manned and freight space vehicles.The interior of both the Shenzhou-8 and Tiangong-1 is an actual environment in which astronauts can live and work. After the Shenzhou-8 tests, the Tiangong-1 will remain a target orbiter for more docking procedures in 2012 by the Shenzhou-9 and -10 spacecraft, at least one of which will be manned to conduct manual docking.Although the Shenzhou-8 is unmanned, it is equipped with devices to record images and data that will help China make improvements to its spacecraft design and astronaut training.Two female astronauts are now believed to be on the active duty roster for future Shenzhou missions, said Chen Shanguang, director of the Astronaut Center of China (ACC)."We must assess both male and female astronauts to verify if human beings can live in space, as there are huge differences between men and women in spite of their common generalities," Chen said."Space exploration activities would be incomplete without the participation of female astronauts," Chen said.The Chinese spacecraft also feature collaborative space experiments under the framework of a Chinese-German science and technology cooperation.German scientists designed bio-incubators for the experiments, while their Chinese counterparts were in charge of the development of control equipment, China's manned space program spokeswoman Wu Ping said.

MOSCOW, Nov. 25 (Xinhua) -- Russia's Proton-M carrier rocket was launched on Friday from the Baikonur space center in Kazakhstan with a Chinese communications satellite "AsiaSat-7", according to Russia's Federal Space Agency Roscosmos.Roscosmos' live broadcast on its official website showed that the Proton-M rocket atop the Briz-M upper stage was launched at 23: 10 Moscow time (1910 GMT). The separation of the satellite from the rocket was scheduled for 08:23 Moscow time (0423 GMT) on Saturday.The AsiaSat-7 which belongs to the Asia Satellite Telecommunications Company Limited (AsiaSat) located in Hong Kong, China, is a new generation satellite designed to replace AsiaSat 3S at the orbital location of 105.5 degrees East.The new satellite was expected to support a broad range of applications for the Asia-Pacific region, including television broadcast and VSAT (Very Small Aperture Terminal) networks.

WELLINGTON, Jan. 2 (Xinhua) -- Chinese lanterns or life from a distant planet?New Zealand meteorologists said Monday they were opting for the former and other mundane explanations after being inundated with reports of UFOs since the start of the New Year.WeatherWatch.co.nz said it normally received "a handful" of eyewitness reports of meteors and lights in the sky, with about 10 reports on a busy day.However, since Sunday, the reports of "floating orbs" and UFOs had been flooding in from around the world at a rate of about 10 each hour.WeatherWatch.co.nz weather analyst Philip Duncan said the reports ranged from "normal meteor sightings to the strange and unusual.""Many people around the world have been outside celebrating the New Year," said Duncan in a statement."In the U.S., where most of the sightings came from, conditions were fairly mild and dry in many areas - so more people were outside to see things. Finally, it's 2012, the year the world is supposed to end according to the Mayans and it seems many are already worrying."One report from Ireland on the weather information company's website said, "At half ten new years eve as My mother and I were heading out of our house to go to town we both saw a strange orange pulsing light. My first guess was it could be a Chinese lantern but it was moving very fast in a perfect straight line. There was no wing and a lantern would sway a little and go up not straight across. The light then began to slow and slightly fade. After a few seconds it got brighter and sped up again until we lost sight of it behind our house. My mother saw the same thing around ten past twelve later that night in the same general area."The statement quoted other reports, including one from Spain: " My father and I saw them in Spain at 00:45 am, but there were 5 or 6 of them all in a vertical line quite close to the earth.""Susana" wrote from an unknown location, "yesterday around 1230 or 1245 there were some red brownish lights first i saw one of them and kind of got my attention and of the sudden there were a BUNCH of them i couldnt count them but i can say there were around 30 lights UFO'S OR CANDLE LIGHTS who knows all i know i saw those lights and were beautiful. Are we ready for the 2012? are we enough educated not to panic?"The WeatherWatch.co.nz statement branded the reports "2012 hysteria.""WeatherWatch.co.nz believes most people witnessed meteors, or shooting stars, Chinese lanterns (which appear as slow moving orange lights) and other normal aircraft such as helicopters and planes," it said.

BEIJING, Jan. 5 (Xinhua) -- The U.S. Secretary of Treasury Timothy Geithner will visit China from Jan. 10 to 11 as a special representative of the U.S. President Barack Obama, Chinese Foreign Ministry spokesman Hong Lei announced on Thursday.Timothy Geithner's visit is at the invitation of Chinese Vice Premier Wang Qishan, said Hong.Chinese top leaders will meet with Timothy Geithner and exchange views with him on issues concerning Sino-US economical relations and the world's economic and financial situations, Hong said.

WASHINGTON, Jan. 2 (Xinhua) -- A systematic review of previous studies suggests that there may be a positive connection between physical activity and children's academic performance, according to a report published Monday in the Archives of Pediatrics & Adolescent Medicine.A group of scientists at the Vrije Universiteit (Free University) Medical Center in the Netherlands reviewed evidence on the relationship between physical activity and academic performance because of concerns that pressure to improve test scores may often mean more instructional time for classroom subjects with less time for physical activity.The authors identified 10 observational and four interventional studies for review, 12 of which were done in the United States, one in Canada and one in South Africa. Sample sizes ranged from 53 to about 12,000 participants between the ages of eight years and 18 years old. Follow-up varied from eight weeks to more than five years."According to the best-evidence synthesis, we found strong evidence of a significant positive relationship between physical activity and academic performance. The findings of one high-quality intervention study and one high-quality observational study suggest that being more physically active is positively related to improved academic performance in children," the report said.Background information in the article suggests that exercise may help cognition by increasing blood and oxygen flow to the brain, increasing levels of norepinephrine and endorphin to decrease stress and improve mood, and increasing growth factors that help create new nerve cells and support synaptic plasticity."More high-quality studies are needed on the dose-response relationship between physical activity and academic performance and on the explanatory mechanisms, using reliable and valid measurement instruments to assess this relationship accurately," the report concluded.

来源：资阳报