Newspaper, Changsha, October 12th (Reporter Yan Aihua, Long Jun)On the 12th, the 8.61m diameter shield main bearing independently developed by Chinese enterprises rolled off the assembly line in Changsha, Hunan Province. It is the integral shield main bearing with the largest diameter, the heaviest monomer and the highest bearing capacity in the world so far. Its successful development marks a major breakthrough in the development of domestic super-large diameter main bearings, and realizes the full coverage of domestic shield main bearings from small and medium diameter to super-large diameter.

　　 　This set of main bearings is independently developed by China Railway Construction Heavy Industry Group, which can be used to drive an 18-meter super-large diameter shield machine. The product weighs 62 tons and can withstand a load of over 10,000 tons. In the raceway plane with a diameter of more than 8 meters, the flatness is less than 20 microns, making it as difficult as carving flowers on rice grains.

　　 　As the "heart" part of the shield machine, the main bearing needs to face the extreme working conditions of the shield machine, such as overload, large eccentric load and frequency varying load. Its service life and reliability are restricted by many key factors, such as materials, design, manufacturing and testing, and the development difficulty is doubled with the increase of size. Previously, the key technology of main bearing of super-large diameter shield was monopolized by foreign enterprises for a long time.

　　 　Liu Feixiang, chief scientist of China Railway Construction Heavy Industry Group, introduced that in order to break through the weak link of the overall autonomy of the shield machine industry chain, Railway Construction Heavy Industry cooperated with upstream and downstream enterprises and universities to tackle key problems, and built the largest and internationally leading shield machine main bearing production line in Changsha Second Industrial Park of Railway Construction Heavy Industry, and successfully developed a full range of main bearings ranging from 3 meters to 7.6 meters; The world’s largest main bearing working condition simulation test-bed has been built, which has solved the worldwide problem that large-scale low-speed and heavy-load main bearings are difficult to test and verify.

　　 　It is understood that the main bearing of shield machine is included in 35 key technologies that restrict China’s industrial development, and it is the last link of the autonomy of the whole industrial chain of shield machine. With the smooth roll-off of the main bearing of the 8.61m domestic super-large diameter shield machine, Chinese enterprises have completely conquered and independently mastered the key core technologies of the whole series of main bearing products of the shield machine from design, materials to manufacturing and testing, thus giving the domestic shield machine a "China heart".

　　Cctv newsOn December 31, 2019, the Intermediate People’s Court of Jinhua City, Zhejiang Province pronounced a verdict on a case of manipulating the securities market involving more than 30 people. This is a typical case in which the CSRC and the public security organs have closely cooperated and jointly investigated in recent years, and it is also a major case of manipulating the market with the cooperation of many gangs.

　　Since May 2017, the criminal gang has used more than 400 stock accounts to maliciously manipulate 8 stocks and earned hundreds of millions of yuan.

　　The cumulative increase of more than 40% in three months triggers the early warning of the monitoring system.

　　One morning in August 2017, the staff of the transaction supervision department of the Shanghai Stock Exchange found that a stock market named Dibei Electric was abnormal.

　　In the three months after the opening of the stock price, the cumulative increase of this new stock exceeded 40%, and compared with the market index in the same period, the deviation exceeded 30%, which triggered a number of warnings continuously.

　　The staff quickly launched an investigation and found that more than 400 active accounts were trading this stock at the same time, many of which were newly opened accounts.

　　"As soon as I came in, I began to trade a large number of shares of Dibei Electric. The time for placing orders was very concentrated. When I bought it, the situation was very strong, and when I sold it, it was relatively scattered. This very sophisticated trading technique generally did not appear in the newly opened account."

　　When these active accounts buy and sell stocks, they all buy in large quantities at the same time and then sell them in batches, and the accounts cooperate tacitly. A large number of abnormal behaviors caused the stock price to fluctuate greatly, so it can be concluded that someone is manipulating the stock price of Dube Electric.

The stock market is abnormal

　　After inputting more than 400 accounts and more than 1.6 million transaction information into the big data model, the inspection team of the CSRC found that these accounts are concentrated on more than a dozen computers, and sometimes 30 accounts are trading on the same computer.

　　In the end, a bank account named Luo Xiangcheng entered the inspector’s sight. Luo Xiangcheng’s account is highly related to many accounts, and the most frequent contact with Luo Xiangcheng is Luo Shandong, the legal representative of Hunan Dongneng Group.

　　"Dead data" turns into "living clues" and no matter how cunning it is, it can’t escape big data.

　　With the deepening of the investigation, the inspectors further found that the Luoshan gang raised funds of up to 1.08 billion yuan through multiple fund intermediaries.

　　These funds use abnormal trading methods such as frequent reverse transactions, intraday price hikes, and rapid daily limit closures to make quick money one after another. Not only Dibei Electric, Seagull, Century Tianhong, Dawson and other seven stocks are suspected of being manipulated.

　　In June 2018, with the deployment of the Economic Investigation Bureau of the Ministry of Public Security, Jinhua Public Security Bureau of Zhejiang Province and the securities supervision and inspection department set up a task force to conduct a joint investigation. The investigation found that the criminal gangs were very cunning. In order to hide people’s eyes and ears, they often went in and out of major hotels across the country, placed orders through wireless networks in public areas, and made multiple transfers and cash deposits, trying to avoid the investigation.

　　Relying on the big data securities crime judgment system developed in recent years, the task force fully tapped the existing electronic data information and turned "dead data" into "living clues", thus making a breakthrough in the case.

　　According to Mao Hairong, deputy head of the Second Branch of the Securities Crime Investigation Bureau of the Ministry of Public Security, the securities crime judgment system takes big data technology as the core, effectively integrates data sources of securities transactions, fund details, personnel tracks, communication information and other parties, and realizes the visual superposition analysis of multi-party data, which can intelligently form a judgment report.

Big data tracking account

　　When the public security organs used big data to track the trajectory information of the people involved, they found a residence in a high-end residential area in Shenzhen. This house worth more than 20 million yuan does not match the identity of the "migrant workers" involved. The task force suspected that this was a trading point, so it followed the trail and continued to dig deep.

　　In July 2018, after close monitoring and analysis, the time for closing the network was ripe. The public security organs mobilized more than 280 police officers, and together with more than 30 professional investigators from the securities regulatory department, they went to eight cities including Chengdu and Wuhan to arrest at the same time, and seized hundreds of computers and a large number of mobile phones and other trading equipment.

　　The "old partner" who once cooperated with each other was arrested and actually dismantled each other.

　　The investigation found that in this case, the suspect Luo Shandong was responsible for manipulating the stock account and directing centralized buying and selling; Gong Shiwei is mainly responsible for providing capital allocation and also participating in manipulating transactions; He Zhihua acted as the "Darkmouth" of the stock market, recommending stocks and attracting retail investors to buy them.

　　Luo Shandong, who has worked in real estate and opened a coal mine, made an illegal profit of 187 million yuan in the stock market only by manipulating a stock of Dibei Electric!

　　What is even more surprising is that Luo Shandong is almost empty-handed when manipulating such large-scale funds. Most of the principal of stock manipulation comes from private fund-raising companies, which provide a large amount of funds for Luoshan East and collect commissions from them.

　　At present, the public security organs have arrested 26 suspects, including Luo Shandong and Gong Shiwei, and taken compulsory measures according to law. How do they jointly manipulate multiple stocks? In front of the camera, the "old partners" who once cooperated tacitly began to tear each other apart.

The principal criminals tear each other apart in front of the camera

　　Gong Shiwei, who is in charge of providing capital allocation, said: "Luoshan is a pit friend. Looking for a young, aggressive and risk-resistant person, he tricked us into appearing as a big brother and felt that he could be trusted. I was fooled by him at that time, and there were many people in this market who were pitted by Luoshan East, not just me."

　　But Luo Shandong didn’t think so, saying that Gong Shiwei was also involved in stock trading. According to the investigators, Gong Shiwei, a fund-raising agent, has dozens of accounts, with the amount of each account ranging from hundreds of thousands to tens of millions. He provides fund-raising for Luoshan in a ratio of 1:4 or 1:5, and after collecting a high margin, he operates the trading of these accounts according to the requirements of Luoshan.

　　In order to avoid a large number of selling without receiving the goods, Luo Shandong also specially found people who recommended the stocks, so that they could spread the news that Dibei Electric was promoted by the dealers to the market and attract retail investors to enter the market.

　　The criminal suspect He Zhihua played the role of pushing the ticket "Darkmouth". He said: "This interest temptation is great, and it is millions to earn at every turn." Originally in the tea business, he couldn’t stand the temptation of huge commission and became a "Darkmouth".

　　The French open is long, sparse and not leaking. Especially in today’s rapid development of big data technology, any illegal behavior is hard to hide. And this case also warns people that "making a steady profit with Zhuang" is the marketing rhetoric of Darkmouth’s elaborate scam, and there are not so many good things in the market. (Text/Dong Shuyun)

　　Xinhua News Agency, Jeddah, Saudi Arabia, July 17th　(International observation) Biden’s trip to the Middle East yielded few results.

　　Xinhua News Agency reporter Hu Guan

　　With the conclusion of the "Security and Development" Summit held in Jeddah, a coastal city in western Saudi Arabia, on the 16th, Biden’s first trip to the Middle East since he took office as US president ended. In Israel, he was vomited by netizens, protested by the people in Palestine, and questioned by reporters in Saudi Arabia. Biden’s visit ended flatly.

　　Analysts pointed out that before Biden’s visit, he made a high-profile announcement that he would open a "new chapter" in the relationship between the United States and the Middle East, but as a result, he hit a wall one after another and did not achieve much substantive results. Great changes have taken place in the political climate in the Middle East, and the pursuit of peace and development has become the mainstream of the region. There are obvious differences between countries in the Middle East and the United States, which adheres to hegemonic thinking. It is not surprising that Biden’s visit is unpopular and has achieved few results.

　　On April 11, 2022, US President Biden delivered a speech at the White House in Washington. Xinhua News Agency reporter Liu Jie photo

　　There are obvious differences.

　　Biden’s first stop in the Middle East was Israel, America’s staunchest ally in the region. During the visit, Biden signed a joint statement with Israeli Prime Minister Lapid, emphasizing "the unbreakable bond between the two countries" and "the enduring commitment of the United States to Israel’s security". The statement said that the United States will use its "all elements of national power" to ensure that Iran cannot acquire nuclear weapons, and promised to cooperate with other partners to deal with Iran’s "aggression and destabilizing activities." But Israel does not "buy" this. According to the Israeli Jerusalem Post, Lapid asked for a deadline for Iranian negotiations to return to the Iranian nuclear deal, but Biden refused.

　　Ephraim Inbar, director of the Jerusalem Institute for Strategic and Security Studies, said that the joint statement lacked substance. "The crux of the matter is what the United States will do on the Iran issue, which is what Israel is most concerned about. Although in public statements, the United States and Israel are doing their best to show that there are no differences, but the differences between the two sides are obvious. "

　　In the West Bank of Palestine, Palestinian President Abbas met with visiting Biden, but Pakistan and the United States did not issue a joint statement. Majidi halliday, adviser to the Palestinian President, revealed that the two sides were still talking about the joint statement a few hours before the meeting between Abbas and Biden, but they finally gave up because of too many differences.

　　Ali Jabawi, a professor at Birzai University in Palestine, believes that the Palestinian-Israeli issue is not the priority of Biden’s visit, and Biden’s visit to Palestine is more like completing a "political task." Mustafa Ibrahim, a Palestinian political analyst, said that Biden’s visit was aimed at building momentum for the mid-term elections in November, and he would not put forward any new ideas on solving the Palestinian-Israeli issue at all.

　　Analysts pointed out that the United States regards the Iranian nuclear issue and the Palestinian-Israeli issue as "chess pieces" and "chips" to realize its own self-interest in maintaining hegemony, stirring up the regional situation and serving domestic politics, and it is natural to expect differences with Israeli-Palestinian leaders.

　　This is the price tag of a gas station photographed in Millbray, California, USA on May 17th. Xinhua News Agency (photo by Li Jianguo)

　　unpopularity

　　It is the focus of Biden’s trip to seek oil and plan a "small circle" in the Middle East by visiting Saudi Arabia and attending the "security and development" summit in Jeddah, Saudi Arabia. According to outside analysis, Biden administration hopes that Saudi Arabia and other Gulf oil-producing countries will increase production to lower international oil prices, ease domestic inflationary pressure in the United States and help the mid-term elections. In addition, the intention of the United States to build a "Middle East version of NATO" and contain countries such as Iran and Russia is also obvious.

　　However, in his speech at the Jeddah Summit, Saudi Crown Prince Mohammed was vague about increasing oil production, saying that Saudi Arabia "has the ability" to increase oil production to an average of 13 million barrels per day, but for the time being, it has no additional ability to continue to increase crude oil production. As for Biden’s intention to win over the Middle East countries against Iran, Russia and other countries, the leaders attending the summit did not respond clearly.

　　Ma Xiaolin, president of zhejiang international studies university Institute of Mediterranean Rim, pointed out that Biden’s government has been in office for nearly a year and a half, and his visit to the Middle East is late, with time and space behind Europe and Asia-Pacific. No one believes that he attaches importance to the Middle East. Coupled with the decline in the relative strength of the United States, the investment in the Middle East has decreased, and after repeatedly creating troubles in the Middle East, it has completely withdrawn, which has greatly reduced the trust of the Middle East countries in the United States.

　　Wang Guangyuan, an associate professor at Middle East College in beijing language and culture university, believes that for many years, in order to maximize the political, economic and security interests in the Middle East, the United States has deliberately created confrontation, stirred up the regional situation, and even subverted the political power of the countries in the Middle East by using various means such as military strikes, human rights diplomacy and the so-called "color revolution", which has caused the countries in the region to fall into a security dilemma and caused serious harm to the region. Nowadays, the pursuit of peaceful development has become the mainstream of the region, the credibility of the United States in the Middle East is going bankrupt, the strategic mutual trust between regional countries and the United States is decreasing, and Saudi Arabia and other countries in the Middle East are increasingly aware of their strategic autonomy and are unwilling to serve the interests of the United States at the expense of their own development.

　　Saudi media reported that during Biden’s meeting with Saudi Crown Prince Muhammad, Muhammad warned Biden that every country has its own values, and the act of imposing its own values on other countries will only be counterproductive. The failure of the United States to promote American values in Iraq and Afghanistan is proof. "Saudi Arabia does not welcome American value diplomacy." (Participating in reporters: Wang Zhuolun, Liu Weijian, Wang Haizhou)