OFDM系统中同步技术的研究与实现

体验学习的意义和引导

Jia Qinglin (R), chairman of the National Committee of the Chinese People's Political Consultative Conference (CPPCC), arrives in Ljubljana, Slovenia, May 10, 2008. Slovenia is the third leg of Jia's current four-nation Europe tour. (Xinhua/Rao Aimin)    LJUBLJANA, May 10  -- China's top political advisor Jia Qinglin arrived in Ljubljana Saturday for an official goodwill visit to Slovenia.     During his visit to Slovenia, Jia, chairman of the National Committee of the Chinese People's Political Consultative Conference (CPPCC), will meet with Slovenian President Danilo Turk, Prime Minister Janez Jansa and representatives from all walks of life in Slovenian society.     Slovenia is the third leg of Jia's current four-nation Europe tour, which has already taken him to Romania and Hungary, and which will also take him to Croatia.     In a written speech delivered at the airport, Jia said that the people of China and Slovenia cherish good feelings to each other though the two countries are far apart. Since the two countries established diplomatic relations in 1992, they have maintained regular exchange of visits by high-level officials and achieved rich results in cooperation in such fields as trade, economy and culture.     Jia expressed the belief that his visit to Slovenia will contribute to further enhancing understanding and friendship between the two peoples and push forward mutually beneficial cooperation between the two countries in all fields.Jia Qinglin (2nd R), chairman of the National Committee of the Chinese People's Political Consultative Conference (CPPCC), arrives in Ljubljana, Slovenia, May 10, 2008. Slovenia is the third leg of Jia's current four-nation Europe tour.

TOKYO, April 17 (Xinhua) -- Chinese Foreign Minister Yang Jiechi, who is on an official visit to Japan, held talks with his Japanese counterpart Masahiko Komura here Thursday.     The two sides spoke positively of the China-Japan relations, and agreed to make joint efforts to ensure the upcoming state visit of Chinese President Hu Jintao to Japan a complete success. Japanese Foreign Minister Masahiko Komura(R) shakes hands with Chinese Foreign Minister Yang Jiechi before their meeting in Tokyo, Japan, on April 17, 2008. Yang arrived Thursday in Tokyo for a four-day visit. This year marks the 30th anniversary of the China-Japan Treaty of Peace and Friendship, Yang noted.     The relationship between the two countries stands at a new turning point in history and faces crucial opportunities for further development, he said.     The Chinese foreign minister said that China would like to join hands with Japan to seize the opportunity to deepen cooperation, expand communication, deal with issues of mutual concern in proper ways, and keep pushing bilateral ties to new stages.     With regard to President Hu's scheduled visit to Japan, Yang said that through this historic visit, China hopes to make joint efforts with Japan to map out the future from a strategic height and a long-term perspective, and to reach consensus on building strategic mutual trust, deepening mutually beneficial cooperation, and strengthening communication and coordination on world and regional affairs, and to bring bilateral relations on the track of long-term, healthy and stable development. Chinese Foreign Minister Yang Jiechi speaks during a joint press conference co-hosted with Japanese Foreign Minister Masahiko Komura in Tokyo, Japan, on April 17, 2008. Komura said the two countries have launched a series of exchanges this year, and drew attention to the obvious achievements made by both sides in diplomatic affairs, security, culture, and youth dialogue and communication.     Japan hopes to continue high-level contacts with China and strengthen dialogue and cooperation in areas such as environmental protection, energy conservation, agriculture and intellectual property rights, he said.     The Japanese foreign minister also said his country looks forward to President Hu's upcoming state visit, which is crucial for building a strategic relationship of mutual benefit.     The Japanese side would like to cooperate with China to ensure the success of the visit, Komura said.     He also wished the Beijing Olympics great success, for which Yang expressed his gratitude.

BEIJING, Sept. 5 (Xinhua) -- Chinese equities tumbled on Friday following a heavy slump overnight on Wall Street as concerns about the U.S. economic slump worsened.     The Shanghai Composite Index sank 3.29 percent, or 74.97 points, to 2,202.45. The key index has declined more than 58 percent this year and more than 63 percent from its peak in October.     In Shenzhen, the market fell 2.8 percent, or 209.4 points, to 7,264.2. Aggregate turnover expanded to 42.55 billion yuan (6.22 billion U.S. dollars) from 38.99 billion yuan on the previous trading day.     Losses outnumbered gains by 827-47 in Shanghai and 702-32 in Shenzhen.     Wall Street fell on Thursday with the Dow Jones down more than 340 points as disappointing jobless and retail data left investors doubtful of a U.S. economy recovery. The downturn partly contributed to a fall in China equities, analysts said.     Tracking the Wall Street loss, both the Hong Kong and Tokyo exchanges plunged more than 2 percent on Friday. A resident walks past an electronic board showing the fall of Hang Sang index in Hong Kong, south China, Sept. 5, 2008. Hong Kong's benchmark Hang Seng Index closed at 19,933.28 points Friday, breaching the key psychological supporting mark of 20,000The key Shanghai index fell through the 2,245 points, which was labeled as a psychological mark by analysts. The mark was the peak of the market's last bullish period that ended in 2001.     The breach increased market panic and the weak sentiment would remain until the authority could come up with detailed market-boosting measures instead of just vague market talks, a Shanghai Shiji Investment Consultant Company analyst said.     Continuous retreats in the world crude oil price and other commodities heightened worries that a global slowdown would cut demand and would dent corporate profits, analysts said.     Crude oil for October delivery dropped 1.46 U.S. dollars overnight to 107.89 U.S. dollars per barrel on the New York Mercantile Exchange, falling for a fifth straight day to a five-month low.     In response, China National Offshore Oil Corp. (CNOOC), the country's largest offshore oil explorer, fell 4.24 percent to 13.76 yuan. China Shenhua, the country's top coal producer, shed 3.16 percent to 24.54 yuan and Yanzhou Coal Mining Company lost 4.29 percent to 12.71 yuan.     Investor confidence was also dampened by news of China Merchants Securities plan to launch an initial public offering (IPO), Guosen Securities senior analyst Tang Xiaosheng said.     Brokerage shares declined across the board. CITIC Securities sank 3.18 percent to 18.56 yuan, Guojin Securities slumped 7.3 percent to 27.94 yuan, while Hongyuan Securities lost 4.79 percent to 13.92 yuan.     China Merchants Securities Co. Ltd. said in a prospectus released late on Thursday that it planned to issue 358.55 million A-shares on the Shanghai bourse. The application would be decided by market regulators on Monday.     If approved, it would become the second domestic brokerage IPO following Everbright Securities after a five-year suspension.

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BEIJING, July 9 (Xinhua) -- The parties involved in the Korean Peninsula nuclear talks held intense bilateral meetings here to pave the way for the discussions between chief negotiators, which are scheduled for Thursday afternoon. Kim Sook, chief negotiator of the Republic of Korea (ROK) delegation, met with his U.S. counterpart Christopher Hill and Chinese chief delegate Wu Dawei on Wednesday.    After the bilateral meetings, Kim told reporters that he felt neither "optimistic" nor "pessimistic" about the six-party talks, and each party needed to cool down and detail the relevant issues. Wu Dawei (R), China's top negotiator on Korean Peninsular nuclear issue, meets with his South Korean counterpart Kim Sook in Beijing, capital of China, July 9, 2008. The heads meeting of a new round of six-party talks on Korean Peninsular nuclear issue will be held here on July 10.     Hill, after meeting with the ROK side, said they touched upon issues including the verification process for the Democratic People's Republic of Korea (DPRK) denuclearization, fuel aid to the country, food shipments and other issues.     Hill said he is scheduled to have a breakfast meeting on Thursday with Russian chief delegate Alexei Borodavkin, after which there will be a trilateral meeting of China, the United States and Russia, with the aim of fully preparing for the six-party talks in the afternoon.     Hill met with the DPRK delegation soon after he arrived in Beijing on Tuesday afternoon, saying that denuclearization verification, including documents, site visits and interviews, would be a focal point in the upcoming meeting.     Under an agreement reached in October, the DPRK agreed to abandon all nuclear weapons and programs and declare all its nuclear programs and facilities by the end of 2007, in exchange for diplomatic and economic incentives.     The DPRK submitted its nuclear declaration to China on June 26 and demolished the cooling tower at the Yongbyon nuclear reactor on June 27, though it missed the deadline.

BEIJING, April 25 (Xinhua) -- Chinese President Hu Jintao said here on Friday that he hoped China and the European Union (EU) would enhance its dialogue and consultation to ensure the healthy and stable development of the China-EU all-round strategic partnership.     Hu made the remarks in a meeting with EU Commission President Jose Manuel Barroso.     He said it was not only in line with both sides' fundamental interests, but also conducive to the peace, stability and development of the world to further cement and step up China-EU ties under current circumstances. Chinese President Hu Jintao (R) meets with the European Union Commission President Jose Manuel Barroso in Beijing, April 25, 2008    "I hope the two sides would keep high-level visits and enhance dialogue and consultation, increase understanding and recognition for the policy trends of each other," Hu told Barroso.     Hailing the development of China-EU cooperation in recent years, Hu called to promote exchange and cooperation in various sectors, deepen coordination on key multilateral affairs and global issues, and properly handle and solve major concerns or disputes between the two.     Barroso said maintaining robust EU-China ties were vital to both sides and the international society.     It needed efforts from both China and the EU to safeguard international energy, finance, food safety and stability and solve global issues of climate change, sustainable development and terrorism, said the former Portuguese prime minister.     He said the EU was committed to developing a strategic partnership with China and was willing to solve disputes through dialogue on the basis of mutual respect and constructive spirit.     Barroso expressed appreciation for China's consistent support for the EU integrity, and wished the Beijing Olympics a success.     Vice Premier Wang Qishan attended the meeting.

BEIJING, July 18 (Xinhua) -- Vice Premier Li Keqiang has urged officials and workers at the section of the Three Gorges in southwest China to ensure safety and quality for the project as the flood season draws near.     The member of the Standing Committee of the Communist Party of China Central Committee Political Bureau made the remark at a meeting here on Thursday by the Office of the State Council Three Gorges Project Construction Committee.     The Three Gorges Dam started discharging water earlier this month to lower the water level in the reservoir after excessive rainfall upstream. The discharge would continue as more heavy rain was expected on the upper reaches of the Yangtze River. Flood is discharged from the Three Gorges Reservoir through the dam in Yinchang, central China's Hubei Province, July 5, 2008.    "The project is now entering the key post-construction phase. Meanwhile, the flood season is coming and our safety task is very arduous," said Li after hearing reports on the project by teams of experts, the Ministry of Land and Resources and other organizations, among them.     Li stressed the evacuation and relocation of people living in the dam section was a long-term mission. Related organizations should see to their basic life requirements and employment by fulfilling policies on supporting migrants and training them for professional skills.     The world's largest dam, 2,309 meters long and 185 meters high, is expected to help minimize damage caused by floods that might occur only once every 1,000 years.     In addition, Li urged to build an ecological protection area around the dam to prevent water pollution, soil loss and mud-sand silting. He said the section of the Three Gorges Dam should be built as an ecological barrier for the Yangtze.     The 22.5 billion U.S. dollar project was launched in 1993. Its 26 turbo-generators is designed to produce 85 billion kwh of electricity annually after their installation is completed at yearend.     According to the office, more than 1.24 million people had been relocated and the project was going smoothly in terms of the local economic society development, environment construction and geologic disaster prevention.

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FUZHOU, July 27 (Xinhua) -- A total of 274,300 people had been evacuated by Sunday afternoon in southeast China's Fujian Province as a strong typhoon was approaching, said the provincial flood control headquarters.     About 52,301 fishing boats had also returned to harbor as of 6:00 p.m. on Sunday. Disaster relief personnel had been helping people on fishing vessels get on shore, said Yang Zhiying, head of the flood control headquarters in Fujian.     Typhoon Fung Wong, the eighth tropical storm of this year, turned into a strong typhoon at 8:00 p.m. Its eye was monitored at the sea about 210 kilometers to the east of Taitung County in Taiwan, according to the provincial observatory.     It moved westward and was forecast to land Taiwan on Sunday night or Monday morning. Frontier guards fasten a vessel at a harbor in Fuzhou, capital of southeast China's Fujian Province, July 27, 2008. The intensifying Typhoon Fung Wong was forecasted to land in Fujian on Monday evening or Tuesday morning. The Fujian provincial flood control headquarters has demanded all vessels to return to harbor on Sunday. Disaster relief personnel have been sent to help women and children on fishing vessels get onshore.The observatory monitored that the typhoon would make another landfall in Fujian on Monday night or Tuesday morning, sweeping the province before moving up inland to east Jiangxi Province.     Influenced by Typhoon Fung Wong, Fujian was hit by winds up to force 8 to 11 in the morning. Its observatory forecast that rainstorm would continue on Monday in the province, which sits on the west of the Taiwan Straits.     From Monday night to Tuesday, winds are expected to reach force7 to 9 in the coastal cities of Fujian. Rainstorms or torrential rainstorms are forecast in the cities of Ningde, Fuzhou, Putian and Quanzhou.     "The continuous heavy rain is likely to trigger flood or other secondary disasters," Yang said.

BEIJING, June 11 (Xinhua) -- Senior Chinese leaders have called on Chinese people to concentrate their energy on quake relief and economic and social development at the same time.     Li Changchun, member of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee, made the call when meeting quake-relief model workers here on Wednesday.     Xi Jinping, who is China's vice-president and also member of the Standing Committee of the Political Bureau of the CPC Central Committee, also met with the model workers. Li Changchun (6th L, 1st row), a member of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee, and Chinese Vice President Xi Jinping (7th L, 1st row), also member of the Standing Committee of the Political Bureau of the CPC Central Committee, pose for a group photo with quake-relief model workers before the first lecture on the heroic deeds and thoughts in quake relief efforts, in Beijing, capital of China, June 11, 2008.    The model workers made lectures in the Great Hall of the People on their deeds and thoughts in quake relief efforts.     Li Changchun said that in fighting against the 8.0 magnitude quake that jolted southwest China's Sichuan Province on May 12, great national solidarity and spirit have been shown.     He praised the 37 model workers who came from different occupations, including the military, police, medical services and education, for their courage and engagement at the very front of the relief missions. Li Changchun (3rd R, 1st row), a member of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee, and Chinese Vice President Xi Jinping (2nd R, 1st row), also member of the Standing Committee of the Political Bureau of the CPC Central Committee, applaud during the first lecture on the heroic deeds and thoughts in quake relief efforts by quake-relief model workers in Beijing, capital of China, June 11, 2008    Li stressed that all party and government officials in quake-affected areas should not let up in supporting survivors and striving to help them rebuild their homes and the local economy.     On the other hand, officials should also make more preparations for the impending Olympics, he said.

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BEIJING, Sept. 9 (Xinhua) -- "Teaching is the most splendid profession under the sun," said Premier Wen Jiabao on Tuesday, while meeting with elementary and high school teachers at his office in central Beijing, to mark Teachers' Day, which falls on Sept. 10 every year.     Prior to their meeting, Wen showed his visitors around at the former office room of late Premier Zhou Enlai, in the Zhongnanhai compound, where both the Communist Party of China (CPC) Central Committee and the State Council are headquartered. Chinese Premier Wen Jiabao (Front) shows teachers around the Zhongnanhai compound, where both the Central Committee of the Communist Party of China and China's State Council (Cabinet) are headquartered, in central Beijing, China, Sept. 9, 2008. Wen Jiabao on Tuesday invited eight elementary and high school teachers to his office to jointly celebrate the Teachers' Day, which falls on Sept. 10As a beloved State and Party leader for the Chinese people, Zhou has been a banner for all with his lofty character and style, said the premier, who is also a member of the Standing Committee of the CPC Central Committee Political Bureau.     During their talks, the premier asked the guests to give their comments on the proposed long-term outline on the country's educational reform and development.     Tan Guoqiang, principal of the Yingxiu Elementary School in Wenchuan County of Sichuan Province, urged the government to deal with the issues of payment, academic titles and housing for rural teachers.     Wen told Tan that the government will give top priority to rural education and improve the teaching conditions in the countryside by "building schools in the safest places." Chinese Premier Wen Jiabao (C Front) and State Councilor Liu Yandong (1st R Front) pose for a group photo with teachers in the Zhongnanhai compound, where both the Central Committee of the Communist Party of China and China's State Council (Cabinet) are headquartered, in central Beijing, China, Sept. 9, 2008Wenchuan was the epicenter of the deadly May 12 earthquake, which left more than 80,000 dead or missing and millions of homeless, including thousands of young students who died in collapsed school buildings.     Tan is the only one among the eight visitors to come from outside Beijing. The other seven also gave their opinions on a series of issues including the current educational reform, and professional training, compulsory education for schoolchildren of migrant workers from rural areas.     In his speech, the premier urged entrepreneurs to contribute more to the educational sector. "For entrepreneurs, the best way to pay back society is to invest in education," he said, in reply to a proposal by Liu Pengzhi, president of a local high school, who called for multiplying the resources of investment for education. Chinese Premier Wen Jiabao (C Rear) and State Councilor Liu Yandong (2nd R Rear) meet with teachers in Beijing, China, Sept. 9, 2008Wen supported Zhong Zhu, a 33-year old teacher from the No. 35 Middle School of Beijing, in his call for establishing parental schools and increasing awareness about responsibilities, rights and psychological health among students. He urged teachers to love students, students to respect teachers, and society to give priority to education.     "Set students free, and not only allow them more hours to play, as well as give them more time to conduct sporting, thinking, practicing, and understanding society," said the premier.     In his keynote address, Wen called education a "foundation stone" for the nation. China will be built into a first-class country with a first-class education system and first-class talents, he stressed.     Teachers should be far-sighted, patriotic and faithful to their profession, said the premier. He urged teachers to set a good example for students, be more creative so that they can train more creative talents, and make greater efforts to obtain new knowledge to keep pace with the times.     At the end of his speech, Wen showed his profound gratefulness, love and respect for teachers, especially those working in remote, rural and poverty-stricken areas.     After the talks, Wen had a brief lunch with his visitors

BEIJING, Sept.1 (Xinhua) -- China's securities watchdog on Monday required fund companies to make their information release more transparent and rolled out a draft regulation on brokers, its latest moves to boost the healthy development of the country's stock market.     The information of stock-oriented funds, such as their periodic results, would be regularly publicized on the website of the China Securities Regulatory Commission, according to a standard format in the eXtensible Business Reporting Language (XBRL), starting from Jan. 1 next year, the CSRC said in a statement on Monday night.     "The move was to further improve the quality of information release by fund companies," said the CSRC.     The new rule was expected to help third-party agencies to appraise and supervise the management of fund companies. Previously it was difficult for a third party to collect and analyze the first-hand information of funds, which was not available to all.     Meanwhile, the CSRC said a new regulation on securities brokers would prohibit them from surpassing their authority by manipulating customers' accounts or providing investment counseling.     The dealers would also be forbidden to "offer or spread false, misleading information", or "tempt customers to make unnecessary deals," said the CSRC. Nor could they make agreements on sharing investment proceeds with customers, or promise gains or compensation for losses.     "It was aimed at protecting the legal interests of fund investors and ward off risks caused by ill regulation of securities dealers," said the CSRC in a separate statement.     The watchdog's actions were part of China's recent efforts to straighten out the stock market order and lay a sound foundation for a long-term development.     The CSRC announced earlier this month it would raise the refinancing threshold for listed companies, saying the dividend they pay to shareholders in the recent three years should be no less than 30 percent of its distributed profits, compared with the previous set line of 20 percent.     Refinancing plans of listed companies had led to share price declines and complaints in China as liquidity concerns loomed over the stock market. Investors also blamed their losses on insider trading and opacity of fund companies.     Last week, a draft amendment to the Criminal Law was submitted to China's top legislature, stating that employees of financial institutes will face criminal prosecution for insider trading. Currently there were no relevant provisions in the Criminal Law.     China's benchmark Shanghai Composite Index has shed more than 60 percent from its peak in mid October last year.     In the first half, 364 funds in the country incurred a record loss of 1.08 trillion yuan (about 154 billion U.S. dollars), more than 90 percent coming from stock-oriented or hybrid funds, according to statistics from the TX Investment Consulting Co..