宜宾双眼皮修复的价钱(宜宾怎样祛斑美白) (今日更新中)

BEIJING, Feb. 28 (Xinhua) -- Construction began on China's first low-speed maglev line Monday in Beijing, a project that will make China only the second country with a low-speed maglev line after Japan.The project marked China's ability to industrialize low-speed maglev technologies, said Chang Wensen, father of China's maglev technology and professor at the National University of Defense Technology.The 10-kilometer line runs from Shimenying Station in west Beijing's Mentougou District to Pingguoyuan Station in the Shijingshan District.The line, a section of Line S1 on the Beijing subway network, is expected to be completed in 2013 with a designed speed of 100 to 120 km per hour.China's research of maglev technologies was started in the 1980s by a team led by Chang Wensen. A 204-meter test line in central China's Hunan Province and a 1.5-km test line in north China's Hebei Province were built jointly by Beijing Maglev Technology Development Co., Ltd. and National University of Defense Technology.The intensity of the magnetic field had been tested as safe, according to a test report of Institute of Electrical Engineering, Chinese Academy of Sciences.The cost of the low-speed maglev line was estimated at 300 million yuan (4.6 million U.S. dollars) per kilometer, slightly more than light rail, but cheaper than the subway, which cost more than 600 million yuan a kilometer, said Li Jie, director of technology research center of National University of Defense Technology.The technology was also under consideration for Line 8 of the subway network in Shenzhen, in south China's Guangdong Province, said Liu Zhiming, board chairman of Beijing Maglev Technology Development Co., Ltd.."If Shenzhen adopts the technology, Line 8 will be China's second low-speed maglev line," he said.The world's first low-speed maglev line, at 8.9 km long, was completed in Japan in March 2005.Maglev, short for magnetic levitation, technology uses a large number of magnets to lift and propel a vehicle, making it faster, quieter and smoother than conventional wheeled transport systems.High-speed maglev vehicles can reach speeds of 450 km per hour and are usually used in long distance transportation, while low-speed maglev lines are usually used in short distance transportation.Construction also began on another seven lines on the Beijing subway network Monday.With an investment of 82 billion yuan (12 billion U.S. dollars), the eight lines will total 113.7 km in length and are expected to open from 2013 to 2015.Beijing has 16 lines under construction.

BEIJING, Jan. 26 (Xinhua) -- Chinese Premier Wen Jiabao Wednesday invited more foreign talents to continue their careers or start businesses in China, pledging better conditions for them.During a seminar with more than 20 veteran foreign experts at the Great Hall of the People a week before the Chinese New Year, Wen thanked the foreign friends for their contributions to China's achievements in 2010.Wen said 2011 is a new starting point for China's modernization, as the country implements its 12th five-year plan for economic and social development."China's development is much more associated with the world and the supply of talents than before," Wen said, adding that China will adopt a more open policy to attract overseas experts.Last year, foreign experts made more than 300,000 visits to China, according to Ji Yunshi, general director of the State Administration of Foreign Experts Affairs.

CANBERRA, May 27 (Xinhua) -- An Australian student has discovered a part of the universe that astrophysicists have spent decades trying to find, Australia's Monash University on Friday confirmed in a statement.Astrophysicists have long thought the universe has a greater mass than is visible in the planets, but they had no way of proving it is there.Undergraduate student Amelia Fraser-McKelvie, 22, was on a summer internship at Monash University to learn more about astrophysics, when she managed to solve one of the big mysteries of science.Fraser-McKelvie, an aerospace engineering student, conducted a targeted X-ray search for the matter and found evidence of it within three months.Her tutor, Kevin Pimbblet, said the discovery is significant."We've been looking for this ordinary matter for a couple of decades," he said in a statement on Friday."It's been published in one of the most prestigious journals in the world, so astronomers all over the world will be able to read this article."Scientists had thought the matter would have a temperature of about 1 million degrees Celsius, 1.8 million degrees Fahrenheit, and should therefore be observable at X-ray wavelengths.Amelia Fraser-McKelvie's discovery has proved that prediction is correct, Pimbblet said.The trio published a research paper on the missing mass in one of the world's oldest and most prestigious scientific journals, Monthly Notices of the Royal Astronomical Society.He said the discovery could change the way telescopes are built.

HOUSTON, April 15 (Xinhua) -- A major contractor for the U.S. space shuttle on Friday announced plans to lay off about 50 percent of its employees this summer after NASA retires the orbiter fleet.The contractor, Houston-based United Space Alliance, said it will cut 2,600 to 2,800 jobs, including 1,850 to 1,950 employees in Florida, 750 to 800 employees in Texas, and 30 to 40 employees in Alabama, "due to the completion of tasks related to day-to-day operations of the Shuttle fleet."The cuts will be made in late July and early August after NASA completes the final flight of Endeavour, scheduled for April 29, and the flight of Atlantis on June 28."The accomplishments of this team are unmatched in human spaceflight," Virginia Barnes, the company's president, said in a news release. "It will be difficult to say goodbye to such tremendously talented and dedicated teammates, and we are committed to making this transition as smooth as possible for them."United Space Alliance has approximately 5,600 employees working at sites in Texas, Florida and Alabama, according to the the news release.

LOS ANGELES, April 14 (Xinhua) -- Customer complaints of an "uncharacteristic odor" prompted Johnson & Johnson to recall about 57,000 bottles of the prescription anti-seizure drug, Johnson & Johnson announced on Thursday.The recall affects two lots of the Topamax 100 mg tablets made by the company's Ortho-McNeil Neurologics division, Johnson & Johnson said.The drug was shipped and distributed between Oct. 19, 2010 and Dec. 28, 2010 in the United States and Puerto Rico.There were four consumer complaints about an odor believed to be caused by trace amounts of the chemical TBA (2,4,6 tribromoanisole), which is applied to wooden pallets used to transport and store packaging materials, Johnson & Johnson said.The recall is not expected to lead to a product shortage at the market, Ortho-McNeil Neurologics said.Similar complaints of a moldy, musty odor have led to the recalls of millions of bottles of Tylenol, Motrin and Benadryl products earlier.Last month, the U.S. government said it was taking over three Tylenol plants operated by McNeil, and the Food and Drug Administration launched a criminal investigation into safety issues at the factories, CNN reported.

来源：资阳报