Today viewpoint

　　In the autumn of 2017, the cigar-shaped Oumuamua broke into the solar system and became the first interstellar visitor discovered and confirmed by scientists, which caused a lot of noise and turmoil in the scientific community. Although it is still unknown whether it is an asteroid, a comet or an alien spacecraft, American scientists have recently said that "flying immortals from outer space" like Omo Mo may not be special, and the elements of life on earth may originate from other star systems, which arrived on Earth by hitchhiking with interstellar visitors like Omo Mo Mo.

　　But at present, these are only assumptions. We need to "catch" more celestial bodies similar to Omo Mo for in-depth research with the help of large telescopes in the future to get the final answer.

　　"Omo Mo" is not special

　　The researchers said that "Omo Mo" is the first confirmed interstellar object we have observed in the solar system, but this does not mean that it is the first interstellar object to reach the solar system in history.

　　"We think, like ‘ Omo Mo ’ Such an object … … At any time, there will be one at a distance of one astronomical unit from the sun (the average distance between the earth and the sun is about 150 million kilometers). " At the "Breakthrough Discuss" conference held at the University of California, Berkeley last month, Bill Porter, head of the Department of Space Studies at the Southwest Research Institute in Colorado, said, "This actually has a very meaningful impact, similar to ‘ Omo Mo ’ Objects may bring life from one celestial body to another. "

　　This idea is called "panspermia)— — The theory put forward by scientists in the 1970s that life on earth came from space. At that time, the British physicist Lord kelvin believed that alien bacteria could reach the earth by comet or meteor and thrive on the earth; Other scientists believe that microorganisms can be embedded in dust particles and pass through galaxies, and they run from one planetary system to another through slight stellar radiation pressure.

　　Can provide heat insulation and radiation protection for microorganisms.

　　At present, the exact size of Omo Momo is still unknown, but researchers believe that its longest size is no more than 800 meters. The object will show "non-gravitational acceleration" when it is far away from the sun, which makes people speculate that "Omo Mo" may be some kind of alien spacecraft.

　　But the more common view is that the "intruder" of this solar system is very cold, and its strange movement is caused by the exhaust gas similar to a comet. When the comet approaches the sun, the ice on it will sublimate directly from solid to gas, forming a huge comet head and a long comet tail. When these gases are released, astronomers can use telescopes to study and determine their composition.

　　Karen Mitch, an astrobiologist at the Institute of Astronomy, University of Hawaii, said: "This tells us that ice can be preserved after such a long journey." Previous studies on comets and other small celestial bodies in our solar system show that objects like Omo have good heat insulation and radiation protection functions, which is good news for any microorganism that may "hitchhike". "Living organic matter can be found in ‘ Omo Mo ’ The interior is well protected. "

　　Astronomers have not found the star system that gave birth to Omo, so we don’t know how long ago Omo was ejected into the dark and cold interstellar dust. But Mickey said that it may have traveled through interstellar space for 10 million years or more.

　　Looking for the next interstellar object to study.

　　Of course, it is still unclear whether any hypothetical creature on Omo will survive the collision with the earth. Mickey said that this icy object hit us at a speed of 215,000 km/h relative to our planet. "This is a very high impact speed."

　　In this regard, Stern Sigurdsson, a professor in the Department of Astronomy and Astrophysics at Pennsylvania State University, said in another speech at the "Breakthrough Discussion" conference that "Omo Mo" and its "passengers" may be quite soft, so after hitting the earth, they may land relatively gently and disperse when they break into our atmosphere.

　　Sigurdsson said that the previous work of Ivey Laueber, director of the astronomy department of Harvard University, and others, as well as his own calculations show that in the nearly 4.6 billion years of history of our planet, about 100 celestial bodies like Omo have hit the earth. "So, we don’t know whether there is a biota inside one of these celestial bodies."

　　Laueber added that we don’t know where Omo is now. "Therefore, it is more meaningful to find the next interstellar object." The powerful large-scale weather measuring telescope (SST) is scheduled to take off from Chile next year and begin to observe the sky. When it runs "full of blood", it may find an interstellar object every month for our study.

　　In addition, scientists suggest that it is also possible that life reached the earth only a short distance long ago. Earthlike planets in our solar system exchange rocks quite regularly, as evidenced by the increasing number of Martian meteorites on earth. In fact, some researchers believe that life on earth may have started on the red planet, and a Martian stone reached the earth in a strong impact.

　　Of course, all this is just a hypothesis, and more scientific evidence is needed to reveal one of the ultimate puzzles of mankind — — Where we come from.

　　(Science and Technology Daily, Beijing, May 8 th)

　　Bitcoin’s "madness" in this round has been somewhat lasting.

　　On January 5, according to the data of Huobi.com, a domestic bitcoin trading platform, at 1: 10 am, the price of bitcoin broke through the historical high of 8,000 yuan three years ago, setting a historical record. As of 8: 45 on January 5, the highest price of bitcoin reached 8650 yuan, and the price increased by more than 260% within one year.

　　The British "Guardian" said that market analysts believe that the main driving force for this round of bitcoin price surge is in China — — In 2016, the RMB depreciated by nearly 7%, the worst performance in 20 years, which triggered a huge demand for Bitcoin.

　　The historical highest price of Bitcoin was 8,000 yuan on November 19th, 2013. A month ago, the price of Bitcoin was still hovering around 1000 yuan, and it tripled in a short time. However, this price fell after less than 1 minute, and then it bottomed out all the way, reaching a minimum of 933 yuan.

　　Compared with that rise, Bitcoin rose slightly steadily this time, from 2,351 yuan in early 2016 to 8,000 yuan in early 2017.

　　Zhu Jiawei, COO of Huobi.com, said that this round of 8,000 yuan market is very different from that in 2013: First of all, the current bitcoin transaction volume is not the same as that of that year. When the highest price of Huobi was 8,000 yuan in 2013, the weekly transaction volume was 393,000 bitcoins, with a weekly amplitude of 103%, which was very small and was greatly affected by funds; Now, when the price of bitcoin breaks 8,000 yuan, the transaction volume in the four days after Huobi Net Festival is 7.35 million bitcoins, which is 37 times of that year’s transaction volume. The price amplitude in the four days after New Year’s Day in 2017 is 15.95%, which is much more stable than that year.

　　In addition, Zhu Jiawei believes that after the application of Bitcoin is promoted, the price tends to be stable. Although Bitcoin rose by 260% from 2016 to 2017, it won the top spot among many investment varieties. However, in the whole year of 2016, according to the data of Huobi. com, the daily price of Bitcoin rose and fell by 10% or more in less than five days, while in 2013, the daily price rose and fell by about 10%.

　　For Bitcoin entering the bull market in the past year, Zhu Jiawei analyzed the reasons: First, the underlying technology blockchain of Bitcoin has been recognized by major banks and financial institutions around the world; Secondly, in early 2016, the central bank held a digital currency seminar to start studying digital currency and blockchain technology; This year, domestic mainstream investment products, including stock market, property market, gold, etc., performed poorly on the whole, while bitcoin rose very well, and funds turned to bitcoin investment channels; Bitcoin halved its output for the second time in July 2016, which also promoted market sentiment fluctuations and pushed up prices.

　　Xu Mingxing, founder and CEO of OKCoin, another bitcoin trading platform in China, analyzed this wave of gains: "According to the laws of the trading market, investment products will rise if they follow a long decline, and will fall if they rise for a long time. Judging from the cycle of Bitcoin, this price increase is a long-term cumulative result after the price peak in 2013. But it is investors’ confidence in Bitcoin that affects the price of Bitcoin for a long time. "

　　The US "Wall Street Journal" reported in May last year that some analysts said that the rise of Bitcoin was mainly driven by the demand in China market brought about by the recent RMB depreciation, and the two major bitcoin trading platforms in China — — Huobi and OKCoin— — At present, it constitutes about 92% of the total global bitcoin transactions.

　　Just as the speculators were ecstatic, the Financial Times "poured a pot of cold water", saying that the value of Bitcoin was zero.

　　"A trading intermediary is always ups and downs, then it is a useless currency. In fact, Bitcoin has all the characteristics of pyramid scams. It requires that believers continue to enter the market to push up prices, and this is based on the promise that more believers will join in the future, so the value of Bitcoin will be the same as that of all pyramid scams. Zero. " The Financial Times reported on January 4th that.

　　In China, bitcoin as a currency has never been recognized by the regulatory authorities. Five ministries and commissions, including the central bank, said in the Notice on Preventing Bitcoin Risks issued in December 2013 that although Bitcoin is called "currency", it is not a real currency because it is not issued by the monetary authorities, and it does not have monetary attributes such as legal compensation and compulsion. In nature, bitcoin should be a specific virtual commodity, which does not have the same legal status as currency, and cannot and should not be used as currency in the market.

How to troubleshoot RAID 5 in the server

　　Due to the continuous progress of technology, different types of servers have different treatment methods after RAID 5 failure.

　　At present, the network topology structure of large-scale application programs generally adopts C/S structure or B/S structure, and at least one server with a large database needs to be placed in the central computer room. Considering the security and reliability of the server, RAID (Redundant Array of Inexpensive Disks) is usually used for redundant backup of the server’s disks. Among them, RAID 5 array level is parity disk array without independent parity disk, which adopts data blocking and independent access technology, can process multiple access requests in parallel on the same disk, and allows any hard disk in the array to fail.

　　In practical application, due to some inevitable objective reasons, some array failures may occur. The most common situation is that the hard disk automatically goes offline, and the online status is displayed as DDD (invalid disk drive), and the hard disk has physical or logical failure. If it is a physical fault, only the hard disk can be replaced; If it is a logical fault, it can be repaired by targeted technology to restore the online state of the hard disk, continue to maintain the striped distribution of the hard disk data in its original array, and continue the consistency of the data storage system.

　　However, the data recovery of some old HP servers (such as HP LH6000) is different from that of new HP servers (such as HP ProLian series servers). Therefore, different servers handle RAID 5 failures differently. I have been in contact with the data failure of RAID 5 array card caused by unexpected power failure of two servers, and solved the problem by adopting different strategies.

Fault repair

　　One is HP LH6000 server, and four 18GB hard disks are made into RAID 5 disk array, and its array card is NetRaid. The other is HP ProLian ML370 server. Four 146GB hard disks are made into RAID 5 disk array, and its array card is Smart Array 642 with Hot Spare hard disk. Both operating systems are Window 2000 and the database is Server 2000.

　　The fault of HP LH6000 is as follows: one hard disk is flashing red light, and the machine is still running normally, but it will not be long before the system can not run normally, and then it is found that the red light of another hard disk is flashing.

The solution is as follows:

　　1. start the server, and press Ctrl+M to enter the NetRaid management program when self-checking to the array. Check the array information and find that the hard disk status is Failed, and use the modified configuration to forcibly set a hard disk to OnLine. Restart the server, the hardware self-check before entering the system is invalid, and the startup fails.

　　2. Start the server, and press Ctrl+M to enter the NetRaid management program when self-checking to the array. Select the disk array, manually Fail the hard disk that was originally hung OnLine, and then manually set another Failed hard disk to OnLine, and restart the server to enter the system.

　　3. After checking that the system and database are running normally, enter the array configuration tool and manually set the Failed hard disk to Rebuild, and then restart the server after 100% reconstruction. All arrays and systems are restored to their original state.

　　Another server running ERP system (HP ProLiant ML370) is configured as a RAID 5-level disk array by four 146GB hot-swappable hard disks through RAID cards (Smart array array cards). One of the hard disks suddenly broke down during operation. Server RAID 5 automatically enables the Hot Spare hard disk to logically replace the damaged hard disk. The data access task of the whole hard disk still runs completely in the original reading and writing process sequence, and the application program and database have no influence.

　　Check the hard disk status through the ACU tool that comes with HP, and find that the hard disk with red light warning is offline. If there are two red lights on Raid 5 in HP ProLiant server, it indicates that the system has crashed and the database cannot be accessed, but the system will not shut down automatically. When the second hard disk is red, the data can’t be recovered by conventional means, so we have to pay a professional third-party data recovery company to recover the data.

　　Therefore, for the old HP LH6000 series servers, the array design is quite different from that of the current HP ProLiant series servers. As far as the operation method is concerned, there are many options for the array operation method of HP LH6000 server, including deleting the array again and rebuilding it after the array fails, and the initialization is also manually selected. However, the initialization of HP ProLiant series server array is automatically performed in the background after the array is configured, so the ProLiant series server cannot reconfigure the array after an array error.

　　The HP LH6000 server will cause the disks in the array to be disconnected for other unexpected reasons, so the maintenance personnel can manually choose Online or Offline, Rebuild, etc. to restore the data. However, the current HP ProLiant series servers will no longer have the phenomenon of disk disconnection in the array like the old servers, so when the hard disk is red, it is basically damaged and needs to be replaced. Of course, you can choose to Rebuild the hot-plug hard disk and see if the hard disk can be used for a while.

Do a good job of technical backup

　　From the above two examples, it can be seen that the troubleshooting of Raid 5 disks of servers of the same brand and different series is different because of their different embedded technologies. But after Rebuild the data, the data was saved, from which the following experiences can be drawn:

　　We believe that any advanced technical means is not foolproof. If you want to ensure data security, you must do a good job of backup, and it is best to do a remote backup of the database once a day. Spare at least one new hard disk. It should be pointed out that the hard disk that joins the array must be greater than or equal to the capacity of the failed hard disk.

　　If conditions permit, the array creation scheme of "RAID 5+ hot spare" is recommended. This way, we have two chances to replace the hard disk before the data is lost. For general applications, only RAID 5 is needed, which can provide data access performance, reliability and maximum disk space at the same time.

　　Administrators must always observe the status of the array, including the yellow warning light of the disk array and the drive status in the management software. Trouble shooting in time. No matter what level of array, data backup should be done before troubleshooting.

Implementing the innovation-driven development strategy and promoting "mass entrepreneurship and innovation" is a major deployment made by the CPC Central Committee. As for starting a business, we have heard the story that some entrepreneurs often raise millions of dollars and get rich overnight. Is it really that easy to start a business? It is also said that the success rate of starting a business is less than 1%, and a startup enterprise may face death if it is not careful. Is entrepreneurship really that terrible? The series report "Entrepreneurship on the Road" tells the ups and downs of these young people’s entrepreneurial stories.

　　CCTV News:The National Health and Wellness Commission held a press conference on December 2 to introduce the prevention and treatment of respiratory diseases in winter and answer media questions.

Xinhua News Agency: Vaccine has played a key role in the prevention and control of influenza. At present, influenza has entered the high season. Is it too late to vaccinate now?

Wang Dayan, Director of National Influenza Center, Institute of Virology, China CDC:Among the prevalent respiratory diseases, influenza, COVID-19 and pneumococcal infection all have corresponding types of vaccines. The influenza vaccine has been used in the world and China for decades. Scientific research and vaccination practice have fully proved that the influenza vaccine is safe, effective and a mature vaccine. Influenza vaccination can effectively reduce infection, even if it is infected, it can also reduce the incidence, and even if it is infected, it can also reduce the severity of the disease.

At present, it is the high season of influenza, and it is still effective to vaccinate people who have not been vaccinated with influenza before. It is recommended that you vaccinate with influenza as soon as possible. Here, I especially point out that people over 6 months can be vaccinated with influenza, especially for high-risk people such as children, the elderly and patients with chronic diseases. After being infected with influenza, the risk of severe illness is higher. Vaccination with influenza can effectively reduce the risk of developing into severe illness and death. I hope everyone will actively vaccinate.

Practice at home and abroad has proved that the use of vaccine is one of the most economical and effective preventive measures, and the vaccine is safe. As long as it is vaccinated in professional institutions as required, it can have good results, especially for the elderly and children, and should actively vaccinate against influenza to ensure the normal pace of life and study.

Actress Aya Sugimoto was recently invited to shoot a group of public service advertisements for PETA, an animal protection association. On the 17th, she took a formal photo shoot in a studio in Tokyo.

　　Although she was used to nudity in filming, Aya Sugimoto felt a different sense of tension that day. Only one piece with the words "Fur? It’s better to be naked. "The advertisement board covers her chest. She said," So far, I feel naked is the feeling of wearing another suit, but this time I have a different sense of tension. I seem to have taken off all my clothes. " Having said that, the actress, who is famous for her sexy and erotic lines, still showed a provocative and dangerous expression when facing the camera. "I stopped wearing fur two years ago, hoping I could face the eyes of those dead animals." It seems that Erotic Queen still has a positive attitude and decisive action in environmental protection. I believe this is also the place that PETA invited her to appear in this group of advertisements.

On March 2nd, Shanghai Tunnel Youth Commando workers waved flags on the "Qiyue" to celebrate the successful reception of the shield project.

On the same day, the connecting line of Shanghai regional railway airport "Meifu Road Working Well-Huajing Station" was the first to run through, marking the successful completion of the "Qiyue" and "First Show" of the super-large diameter shield machine independently developed and manufactured by Shanghai Tunnel.

According to reports, the total length of the "Qiyue" is about 99 meters, of which the length of the main engine is about 16 meters, and the cutting diameter of the cutter head is 14.05 meters. In October 2020, the commissioning was completed. During the construction period, "Qiyue" successively passed through the high-voltage iron tower, the viaduct of Hongmei South Road and the subway line 15, ensuring the safety of various complicated water, gas, electricity and communication pipelines, and finally successfully completed the underwater reception in the receiving well of Huajing Station.

Xinhua News Agency reporter Fang Yushe

This is the "Qiyue" which was shot on March 2nd at the site of Shanghai regional railway airport connecting line project.

On the same day, the connecting line of Shanghai regional railway airport "Meifu Road Working Well-Huajing Station" was the first to run through, marking the successful completion of the "Qiyue" and "First Show" of the super-large diameter shield machine independently developed and manufactured by Shanghai Tunnel.

According to reports, the total length of the "Qiyue" is about 99 meters, of which the length of the main engine is about 16 meters, and the cutting diameter of the cutter head is 14.05 meters. In October 2020, the commissioning was completed. During the construction period, "Qiyue" successively passed through the high-voltage iron tower, the viaduct of Hongmei South Road and the subway line 15, ensuring the safety of various complicated water, gas, electricity and communication pipelines, and finally successfully completed the underwater reception in the receiving well of Huajing Station.

Xinhua News Agency reporter Fang Yushe

This is the "Qiyue" which was shot on March 2nd at the site of Shanghai regional railway airport connecting line project.

On the same day, the connecting line of Shanghai regional railway airport "Meifu Road Working Well-Huajing Station" was the first to run through, marking the successful completion of the "Qiyue" and "First Show" of the super-large diameter shield machine independently developed and manufactured by Shanghai Tunnel.

According to reports, the total length of the "Qiyue" is about 99 meters, of which the length of the main engine is about 16 meters, and the cutting diameter of the cutter head is 14.05 meters. In October 2020, the commissioning was completed. During the construction period, "Qiyue" successively passed through the high-voltage iron tower, the viaduct of Hongmei South Road and the subway line 15, ensuring the safety of various complicated water, gas, electricity and communication pipelines, and finally successfully completed the underwater reception in the receiving well of Huajing Station.

Xinhua News Agency reporter Fang Yushe

On March 2, the construction workers cleaned the foundation pit at the site of the Shanghai regional railway airport tie line project.

On the same day, the connecting line of Shanghai regional railway airport "Meifu Road Working Well-Huajing Station" was the first to run through, marking the successful completion of the "Qiyue" and "First Show" of the super-large diameter shield machine independently developed and manufactured by Shanghai Tunnel.

According to reports, the total length of the "Qiyue" is about 99 meters, of which the length of the main engine is about 16 meters, and the cutting diameter of the cutter head is 14.05 meters. In October 2020, the commissioning was completed. During the construction period, "Qiyue" successively passed through the high-voltage iron tower, the viaduct of Hongmei South Road and the subway line 15, ensuring the safety of various complicated water, gas, electricity and communication pipelines, and finally successfully completed the underwater reception in the receiving well of Huajing Station.

Xinhua News Agency reporter Fang Yushe

"Qiyue" was installed and debugged in the production workshop of Tunnel Machinery Manufacturing Branch in Pudong New Area, Shanghai (photo of drone, taken on October 15, 2020).

On the same day, the connecting line of Shanghai regional railway airport "Meifu Road Working Well-Huajing Station" was the first to run through, marking the successful completion of the "Qiyue" and "First Show" of the super-large diameter shield machine independently developed and manufactured by Shanghai Tunnel.

According to reports, the total length of the "Qiyue" is about 99 meters, of which the length of the main engine is about 16 meters, and the cutting diameter of the cutter head is 14.05 meters. In October 2020, the commissioning was completed. During the construction period, "Qiyue" successively passed through the high-voltage iron tower, the viaduct of Hongmei South Road and the subway line 15, ensuring the safety of various complicated water, gas, electricity and communication pipelines, and finally successfully completed the underwater reception in the receiving well of Huajing Station.

Xinhua News Agency reporter Fang Yushe

"Qiyue" was installed and debugged in the production workshop of Tunnel Machinery Manufacturing Branch in Pudong New Area, Shanghai (photo of drone, taken on October 15, 2020).

On the same day, the connecting line of Shanghai regional railway airport "Meifu Road Working Well-Huajing Station" was the first to run through, marking the successful completion of the "Qiyue" and "First Show" of the super-large diameter shield machine independently developed and manufactured by Shanghai Tunnel.

According to reports, the total length of the "Qiyue" is about 99 meters, of which the length of the main engine is about 16 meters, and the cutting diameter of the cutter head is 14.05 meters. In October 2020, the commissioning was completed. During the construction period, "Qiyue" successively passed through the high-voltage iron tower, the viaduct of Hongmei South Road and the subway line 15, ensuring the safety of various complicated water, gas, electricity and communication pipelines, and finally successfully completed the underwater reception in the receiving well of Huajing Station.

Xinhua News Agency reporter Fang Yushe

　　On the afternoon of April 10th, General Secretary of the Supreme Leader visited Yazhouwan Seed Laboratory and Sanya Ocean Research Institute of China Ocean University successively in Sanya, Hainan Province, to learn about Hainan’s support for seed industry innovation and the development of marine science and technology.

　　Standing at a new historical starting point, "China’s economic and social development and improvement of people’s livelihood need scientific and technological solutions more than ever before, and it is even more necessary to enhance the first driving force of innovation."

　　Since the 18th National Congress of the Communist Party of China, the General Secretary of the Supreme Leader has visited the frontier of scientific and technological innovation for many times, and expounded the great strategic significance of scientific and technological innovation with vivid metaphors for many times.

　　"This ‘ Gold pole ’ I understand it as agricultural modernization. "

　　General Secretary of the Supreme Leader once told such a story. At that time, he was hungry and asked the people around him, what kind of life do you think is the best, and what are the specific goals? Try harder and think boldly about what is higher. "Their answer is — — I will carry a gold pole when I go up the mountain to work in the future! " "This ‘ Gold pole ’ I understand it as agricultural modernization. " The words of the Supreme Leader’s General Secretary contain true feelings.

　　"To solve the problem of eating, the fundamental way out lies in technology." The "golden pole" bears the farmers’ "money bag" at one end and the people’s "rice bag" and "vegetable basket" at the other. Agricultural modernization is based on seeds. "A seed can change a world, and a technology can create a miracle." The General Secretary of the Supreme Leader pointed out that we should make up our minds to develop the national seed industry, pay close attention to cultivating excellent varieties with independent intellectual property rights, and ensure national food security from the source. During this inspection in Hainan, the General Secretary made a special trip to Yazhouwan Seed Laboratory. Yazhouwan Seed Laboratory, established in May 2021, as a public scientific research platform built by Sanya Yazhouwan Science and Technology City, relies on and serves the national Nanfan Scientific and Research Breeding Base, and is guided by seed innovation and seed industry development, helping the high-quality innovation and development of seed industry in China.

　　General Secretary of the Supreme Leader profoundly pointed out, "Only by combining scientific and technological achievements with national needs, people’s requirements and market demand and completing the triple jump from scientific research, experimental development and popularization and application can we truly realize innovation value and realize innovation-driven development."

　　At the symposium of scientists in September 2020, the general secretary pointed out that "accelerating scientific and technological innovation is the need to realize people’s high-quality life" and "in order to meet people’s yearning for a better life, more scientific and technological innovations involving people’s livelihood must be introduced". It is on this occasion that the general secretary put forward new requirements for the vast number of scientists and scientific and technological workers to "face people’s lives and health." During the "Thirteenth Five-Year Plan" period, China has made a number of major scientific and technological achievements in the field of people’s livelihood science and technology. Integrated whole-body positron emission/magnetic resonance imaging equipment, rice breeding accelerators in unmanned plant factories and other scientific and technological innovations for people’s lives and health have been continuously unveiled and applied to a better life.

　　"Scientific and technological innovation, like a lever to incite the earth, can always create unexpected miracles."

　　In June, 2014, at the 17th Academician Conference of China Academy of Sciences and the 12th Academician Conference of China Academy of Engineering, General Secretary of the Supreme Leader pointed out: "Scientific and technological innovation, like a lever to shake the earth, can always create unexpected miracles. The development of contemporary science and technology fully proves this process. "

　　Scientific and technological innovation makes the deep sea no longer mysterious. In April, 2018, General Secretary of the Supreme Leader visited the Institute of Deep Sea Science and Engineering of China Academy of Sciences in Sanya, Hainan, to learn about China’s first 10,000-meter seabed exploration in the Mariana Trench, and went into the exhibition area of deep-sea exploration equipment with great interest to see all kinds of deep-sea diving high-tech equipment.

　　Technological innovation makes space no longer far away. Just last month, the second class of "Tiangong Classroom" was held in China Space Station, and the astronauts of Shenzhou XIII gave another wonderful space science class. During more than 170 days of space flight, three astronauts, with the support of ground technicians, carried out a number of scientific and technological experiments and application projects, setting many "firsts" and "firsts".

　　Scientific and technological innovation is the strategic support to improve social productivity and comprehensive national strength. Since the 18th National Congress of the Communist Party of China, the CPC Central Committee with the Supreme Leader as the core has made a major strategic choice of "innovation must be the first driving force for development" and implemented the innovation-driven development strategy.

　　"Life Gate", "Bull’s Nose", "Heaviest Weapon of the Country", "Fixed Sea Needle" and "Unique Weapon" … … Nowadays, China has started a new journey of building a socialist modern country in an all-round way, and the position of scientific and technological innovation in the overall development of the party and the country is more prominent.

　　"Innovative achievements should benefit the whole world, and should not become treasures buried in caves."

　　In November 2019, when the Chairman of the Supreme Leader met with foreign representatives attending the 2019 Innovation Economic Forum, he pointed out that "no country can become an independent innovation center or enjoy innovation results exclusively. Innovations should benefit the whole world and should not be a treasure buried in a cave. "

　　Fungus and grass technology, which has been popularized in more than 100 countries around the world, is a dazzling treasure out of the cave. With the long-term concern of the Supreme Leader, the fungus-grass technology of "replacing wood with grass" has gone out of China from Fujian to the world, which has played an important role in promoting local development and people’s well-being, and has been widely welcomed by developing countries.

　　"China is willing to work with all parties concerned to continue to contribute China’s wisdom and China’s plan for the implementation of the UN’s 2030 Agenda for Sustainable Development, so as to make mushroom technology benefit the people of developing countries ‘ Happy grass ’ ！” In September last year, the Chairman of the Supreme Leader pointed out in his congratulatory letter to the 20th anniversary of foreign aid to fungi and grasses and the International Cooperation Forum for Sustainable Development.

　　The world today is experiencing a great change that has never happened in a hundred years, and the domestic and international environment facing China’s development has undergone profound and complex changes. In the face of fierce international competition and against the background of rising unilateralism and protectionism, General Secretary of the Supreme Leader is far-sighted: "Scientific and technological achievements should benefit all mankind, and should not be a means to restrict or contain the development of other countries."

　　China’s scientific and technological innovation, not alone, nor narcissistic. "Promoting sustainable development through scientific and technological innovation has become the only way to solve some important global issues of concern to all countries." "We have expanded open cooperation in the field of science and technology, actively participated in solving major challenges facing mankind, and worked hard to promote scientific and technological innovations to benefit more countries and people." … … China’s scientific and technological innovation has conveyed China’s wisdom and contributed to China’s plan, which is promoting mutual benefit and sharing, unity and cooperation among all countries, creating a bright future together, and making continuous progress towards building a community of human destiny.

　　Coordinator: Cui Shixin

　　Written by: Wu Shan

　　Planning: Du Shangze

　　Editor: Summer Xu

　　Image source: Xinhua News Agency (photo: Yan Yan, visual: Lai Xiangdong, Bi Xiaoyang)

On November 15th, at the 22nd Guangzhou International Automobile Exhibition, SAIC unveiled dozens of new energy vehicles with eleven brands including Zhiji, Roewe, Feifan, MG, Datong, Audi, Volkswagen, Cadillac, Buick, Wuling and Baojun.

The models unveiled this time include: Super City Smart SUV brand-new Zhiji LS6, the world’s longest battery life and lowest fuel consumption MPV Roewe iMAX8 DMH Xinluzun, Feifan brand-new R7, global high-standard pure electric rear-drive SUV MGES5, smart and efficient pure electric bus SAIC Datong Dana M1, SAIC AUDI Audi brand "Class B pure electric Sportback" Audi E concept car, Joint venture pure electric head brand SAIC Volkswagen ID. Pure electric family, new American pure electric option Cadillac IQ proud song, the strongest luxury plug-in MPV”GL8 LU Zun PHEV, household large space SUV Wuling Xingguang S, 100,000-class only high-level intelligent driver box Bao Junyue Plus, etc.

It is reported that SAIC has invested nearly 150 billion yuan in research and development in the core technology field of smart electricity, and has obtained more than 26,000 effective patents, successfully launching the "seven technical bases" with international leading technology level, including three complete vehicle platforms of pure electric, hybrid and hydrogen energy, as well as full-stack solutions for batteries, electric drives, super-hybrid systems and smart cars. This year, SAIC officially released the "Seven Technical Bases" 2.0, accelerating the reconstruction of the longboard functional experience of SAIC electric smart cars such as high-level intelligent driving, integrated cockpit, digital chassis and high-efficiency driving, and fully empowering independent joint venture brands to continue to make breakthroughs.

Zhiji Automobile ushered in "Intelligent Great Evolution"

At the Guangzhou Auto Show, Zhiji Auto officially announced that intelligent core technologies such as Linglizard digital chassis, iAd high-order intelligent driving and stunning intelligent cabin ushered in a full-dimensional rejuvenation. For the first time in the industry, Zhiji Automobile realized the deep integration of the intelligent driving domain and the intelligent chassis domain, and the new LS6 and L6 innovatively realized the functions of "lizard turning around" and "pan-tilt body". "Linglizards turn around" makes the map-free NOA realize "two-way, two-lane, automatic U-turn, one pass" for the first time, and at the same time makes medium and large SUVs have the same flexibility as Mini cars; The "pan-tilt body" significantly enhances the stability, safety and comfort of vehicles when they make big bends and sharp bends during high-speed elevated NOA driving.

On the basis of successfully opening only four "national-no map -NOA" in the industry, IM AD 3.0 is upgraded by relying on the "one-stage end-to-end intuitive intelligent driving model". In NOA driving without a map on the central road in the city, you can make the blind area cross the situation and easily bypass obstacles such as puddles. In the face of the unprotected left-turn scene where people and vehicles are mixed, they can play games as sophisticated as old drivers. At complicated intersections, even in the face of unclear road conditions such as no central line and super-wide cars, you can calmly cope and pass smoothly.

The "super smart cabin" also ushered in a major upgrade of software and hardware. The most popular "rainy night mode" adds the function of automatic recognition of pit avoidance; "ISC Intelligent Lamp Language System" can customize the lamp language and convey happiness to others in the most playful way. "Adventure Road Book" deeply combines Tik Tok’s rich video content, enjoying the immersive audio-visual experience in the process of exploration, and adding inspiration for travel. In addition, the trendy technology item "IM MAX Back Smart Screen" cooperates with the unique "three-lying mode" of the new LS6 to realize the freedom of first-class viewing.

DMH Super Hybrid "has the strongest battery life and the best fuel consumption"

Self-owned brand "national team" SAIC Roewe will display Roewe iMAX8 DMH New Land Zun and Roewe D7 DMH World Champion Edition, which have created many world records in the field of blending. Under the full notarization of a third-party authority, Roewe iMAX8 DMH Xinluzun became the "MPV with the longest battery life and the lowest fuel consumption in the world" with the measured battery life of 1536km and CLTC power loss and fuel consumption of 4.71L/100km. At the same time, Roewe D7 DMH World Champion Edition also broke the ceiling of the industry with the achievement of "creating the Guinness World Record for the longest cruising range", and boarded the throne of "Hybrid B-Class Vehicle with the lowest fuel consumption in the world" with the cruising range of over 2208km and the average fuel consumption data as low as 2.49L/100km.

Roewe iMAX8 DMH Xinluzun and Roewe D7 DMH World Champion Edition can achieve far-ahead endurance performance, thanks to the powerful empowerment of SAIC DMH super hybrid system. The system has the industry’s first five-in-one powertrain brain PICU, P1+P3 dual-motor hybrid special gearbox and other hybrid special hardware and software to achieve the strongest endurance and the best fuel consumption index of hybrid power.

Global High-standard "Quality Trams"

As the "export champion of single automobile brand in China", MG brand has brought the newly released "global high-standard pure electric rear-drive SUV" MGES5, which will be listed in the global market gradually in the first quarter of next year. MG ES5, which originated from the exclusive serialization platform of pure electricity of SAIC Nebula, was developed in accordance with the strict European five-star standards, and collected the high standards of Chinese and foreign laws and regulations in terms of interior materials, air quality control and anti-corrosion treatment to provide users around the world with a higher quality driving experience. It integrates eight functions, such as intelligent cruise assistance and lane keeping assistance, covering a variety of complex driving scenarios and providing a convenient and safe driving experience; Applying the "motion sickness relieving system" pioneered by SAIC, it can effectively reduce the motion sickness by 30% and become the leading "tram that never gets motion sickness" at the same level. In addition, the Rubik’s Cube battery of SAIC Zero Combustion Technology equipped with MG ES5 has multiple protections, such as 7×24-hour remote monitoring, early heat dissipation system, automatic pressure relief and explosion-proof valve, with a maximum life of 1 million kilometers, and has maintained a record of "zero spontaneous combustion" so far.

The brand-new R7 of Feifan, which debuted, inherits the core advantages of family products, including a brand-new cockpit that is intelligent and comfortable, the industry’s first 3+1 super-visual intelligent interaction, and a motion sickness relieving system that can effectively solve users’ pain points, refreshing the "intelligent and comfortable" quality experience, injecting new vitality into the medium and large pure electric SUV market, and will be listed in the first quarter of 2025.

"China light passenger is the first choice for developed countries in the world", SAIC Chase will present the "smart and efficient pure electric bus" with M1, which not only has 9 leapfrog spaces, the lowest power consumption of the same class of 17.5kWh and a long CLTC battery life of 405km, but also won the highest safety rating of Euro NCAP platinum in Europe.

Advanced intelligent driving "100,000-level era"

The Baojunyue Plus 2025, which was officially listed at the Guangzhou Auto Show, has mass-produced the end-to-end model to 100,000-class models, bringing users the "100,000-class only high-level intelligent driving box".

The new car is equipped with Lingmiao Intelligent Driving 2.0Max, which is the first model of 100,000-level end-to-end model mass production in the industry. Full-speed intelligent driving assistance, the only urban memory navigation function at the same level, high-speed navigation assistance that can be used and used all over the country, and the strongest active safety capability within 200,000 class make daily travel more efficient, comfortable and safe. At the same time, the industry’s first intelligent parking covers more than 3,000 scenes, the only memory parking at the same level, the only self-selected parking space at the same level and other functions, which deeply solve the parking difficulties of users, and Lingmu Intelligent Driving 2.0 Max truly becomes the most intelligent driving system for users.

New energy vehicles "joint venture top flow"

As the "top joint venture" of new energy in China’s automobile industry, SAIC Volkswagen, SAIC Audi and SAIC-GM will respectively display the "joint venture pure electric sales crown" SAIC Volkswagen ID. Family, "Class B pure electric Sportback" Audi E concept car and "the strongest luxury plug-in MPV" Buick GL8 Luzun PHEV.

At present, the ID family of SAIC Volkswagen has officially entered the period of intelligent rapid penetration, bringing better and smarter quality pure electricity to new energy consumers. The car APP "Intelligent Voice GPT" based on the big language model, the newly blessed Iflytek voice interactive system, the V Mate intelligent assistant supporting voice cloning, the high-order full-journey intelligent driving assistance system with automatic lane change, and the high-class parking housekeeper who realizes remote parking and parking of mobile phones, etc., are full of technology and hard work, which makes users more aware of the "cleverness" of the ID family.

At SAIC Audi booth, the "Class B pure electric Sportback" Audi E concept car is a well-deserved protagonist. It is the young and enterprising embodiment of Audi and can be called a "luxury new species" that subverts the automobile industry. Inherited from Audi’s pure genes, the Audi E concept car perfectly interprets Audi’s unique excellent driving experience. The total output power of its front and rear axle dual motors is as high as 570 kW. With the blessing of quattro four-wheel drive system, the acceleration of zero hundred is only 3.6 seconds. At the same time, under Audi’s scene definition and human-computer interaction design, and integrating SAIC’s "Yinhe" full stack 3.0 electronic and electrical architecture, Audi E concept car has realized the integration of "cabin, driving, calculation and connection", and built a full-scene digital intelligent companion cockpit for drivers and passengers.

As a luxury gold standard hybrid MPV tailored for China market, Buick GL8 Luzun PHEV inherits Buick MPV’s leading product strength and deep market accumulation, completely defines the "gold standard" of MPV industry, and highlights the king’s strength of "the strongest luxury hybrid MPV". (CIS)

Proofreading: William Wang

　　Zhongxin. com, Xi ‘an, December 27th (Alina Cheng Hongfei, Qiong Cai) The reporter learned from the Longcaoping Forestry Bureau of Shaanxi Province on the 27th that the patrol personnel of Guanyinshan National Nature Reserve in Shaanxi Province recently came across the golden monkey "robbing" and witnessed the "organizing" ability of the wild golden monkey.

　　On December 25th, the rangers of the nature reserve went to Muergou to carry out daily patrol work as planned. On the way, I suddenly met a golden monkey sitting in the middle of the road, and I didn’t avoid seeing the vehicle, so I "forcibly" stopped the patrol vehicle.

　　The patrol team thought that the golden monkey was injured and asked for help, stopped to see the details, and handed a short section of the kang bun in the patrol belt to the golden monkey. Unexpectedly, after eating the steamed buns on the kang, the golden monkey immediately jumped on the front of the car and jumped on the alarm on the roof, making a loud "squeak" sound.

　　A voice sounded, and seven golden monkeys jumped off the hillside quickly, turning around the car, echoing each other "squeaking" as if discussing something. Then, a golden monkey with the largest body and the brightest coat suddenly jumped in, got in through the window that had no time to close the glass, took all the kang kang buns brought by the patrolmen up the mountain, got out of the car, tore up the bag, shared food with the monkeys, and "swaggered" out of the scene.

　　Seeing the process of being robbed by the golden monkey, the patrol members were both surprised and gratified. Xue Yanxing, a patrol member who loves photography, picked up his mobile phone and recorded these pictures.

　　According to reports, in recent years, more and more wild animals have been encountered in Shaanxi patrol work, which is the result of years of continuous protection. People’s awareness of protection has increased, human disturbance has decreased, habitat quality has gradually recovered, and the number of wild animals has increased significantly.

　　Shaanxi Guanyinshan National Nature Reserve is located in Foping County, the hinterland of Qinling Mountains. After more than ten years of protection, wild animals such as giant panda, golden monkey, antelope, forest musk deer, gazelle and impala are often seen in the reserve. At the same time, the protected area uses modern scientific and technological means such as video surveillance and infrared cameras to monitor the wild animals in the protected area in real time to obtain important data such as the species, quantity, distribution, activity law and habitat status of wild animals, and provide scientific basis for making targeted protection and management decisions in the protected area. (End)