[car home Industry] This week, many new cars have reported the latest news, which makes people feel that even buying a car in the latest year should be prevented from "chopping hands".

Xu Jiayin, whom I haven’t seen for a long time, suddenly appeared for platform 5 of Hengchi. It seems that Boss Xu really loves Hengchi. A whole new generation appeared, and if you can’t afford it, you can only have an eye addiction, but then again, this car really has a little taste. The Q1 financial report was released, and I have to say that it was really profitable. The stock price immediately reached an all-time high. Did you get on the bus?

More exciting, look down.

Hot news this week

■ The Q1 financial report for 2022 was released, and the gross profit margin of automobiles reached a new high of 32.9%.

■ In cooperation with Horizon official announcement, some models will be equipped with Journey 5 in 2023.

■ World premiere

■ Anson China Global Distribution Center was closed due to the epidemic.

■ Contemporary Amperex Technology Co., Limited EVOGO power exchange service started in Xiamen.

■ M7 exposure

■ The Ministry of Industry and Information Technology has set up a "white list" of 666 enterprises operating in Shanghai.

■ Zhiji L7 Dynamic Edition is on the market, with a price of 368,800 yuan.

■ Xu Jiayin Experience Hengchi 5

■ Faurecia and Hella merged to publish the Chinese name "Freia"

New car release

■ M7 exposure

A few days ago, AITO brand officially released the official appearance map of its model M7. The new car as a whole looks atmospheric and is expected to be released within the year.

Judging from the previous declaration, the length, width and height of the new car are 5020/1945/1775mm and the wheelbase is 2820mm respectively. At the same time, the car will adopt a six-seat layout.

In the power part, the new car will also be equipped with an extended-range power system consisting of a 1.5T four-cylinder turbocharged range extender and a motor provided by Huawei. Among them, the maximum power of engine is 92kW, and the rated power/peak power of motor is 72kW/200kW.

■ World premiere

On April 20th, the brand-new 7 Series and pure electric car i7 were launched simultaneously in China, Germany and the United States.

Inspired by China, the i7 is made by German technology, which is the fifth pure electric vehicle released in China. The other four models are iX3, i3, i4 and iX. In terms of body size, the length, width and height of the i7 are 5391*1950*1548mm and the wheelbase is 3200mm. It is the largest 7-series sedan ever.

In the interior, the design of the front row of the new car is exactly the same as that of iX, but Qualcomm’s 8155 chip is adopted for the first time, and a 31-inch movable screen is added in the back row to meet the entertainment needs of the passengers in the back row, and the screen meets the playback effect of 8K video. Iqiyi and Huawei Mall have entered the entertainment system.

■ The listing price of Zhiji L7 Dynamic Edition is 368,800 yuan.

On April 17th, Zhiji Automobile announced that L7 was officially listed. After the price of L7 Pro version was 408,800 yuan on March 29th, this time, Zhiji Automobile announced that the price of L7 Dynamic was 368,800 yuan.

Users who have not locked the order can freely change the purchased model, and users who have locked the order can also contact the user to change the model as needed. The deadline for angel wheel users to lock the order is May 29, the deadline for A wheel users to close the order is April 29, and the deadline for locking the order is June 17.

In appearance, the length, width and height of Zhiji L7 are 5098*1960*1485mm, the wheelbase is 3100mm, and the drag coefficient is 0.21Cd. In addition, it is worth mentioning that the DLP light projection headlights equipped with Zhiji L7 pro version have a projection resolution of 2.6 million pixels and an AI vision chip with 3 TOPS computing power. At the same time, the ISC front and rear interactive lights can realize 255 levels of brightness independent adjustment, two-color control and 30000nits ultra-high brightness. It can realize the interaction between lights and words in navigation, distance reminder, electricity reminder, pedestrian comity and other scenes.

Attack the main engine factory.

■ In cooperation with Horizon official announcement, some models will be equipped with Journey 5 in 2023.

On April 21st, it announced that it has reached a fixed-point cooperation with Horizon, and will carry the Horizon autopilot chip Journey 5 on some of its models, so as to create an integrated parking and navigation scheme and realize high-level autopilot function.

According to the plan, the model equipped with Horizon Journey 5 will be listed as early as mid-2023. It also became the first car company to officially launch Horizon Journey 5.

By the end of 2021, more than 1 million AI chips had been pre-installed and shipped. Journey 5 is its third-generation car-level chip, with a single AI computing power of up to 128TOPS, supporting 16-channel camera sensing calculation, and supporting multi-sensor fusion, prediction and planning control required by autonomous driving.

On April 20th, Horizon unveiled its high-speed NOA pilot-assisted driving scheme. The system is called Pilot 3, and it is equipped with three Journey 3 chips, and finally the power is 15TOPS. The sensor is equipped with 6 cameras, including 1 front view, 1 rear view and 4 side views, and is used in conjunction with the high-precision map from Gaode.

■ The Q1 financial report for 2022 was released, and the gross profit margin of automobiles reached a new high of 32.9%.

On the 20th local time, the financial report for the first quarter of 2022 released by the United States showed that the company’s revenue in this quarter was US$ 18.756 billion, up 81% year-on-year. The gross profit margin of the automobile business was 32.9%, a record high.

The financial report shows that the company’s revenue in the first quarter was 18.756 billion US dollars, up 81% year-on-year, exceeding the market expectation of 17.8 billion US dollars. The net profit in the first quarter was 3.318 billion US dollars, far exceeding the 438 million US dollars in the same period last year. In the first quarter, the revenue of automobile business was 16.861 billion US dollars, an increase of 87% compared with the revenue of 9.002 billion US dollars in the same period last year. The gross profit margin of the automobile business reached a record 32.9%.

It is said that the increase in the company’s revenue is partly due to the increase in the number of cars delivered and the increase in the average selling price.

CBS reported that in 2021, a record 936,000 vehicles were delivered, an increase of 87% over 2020. Earlier this month, it was reported that the company delivered a record 310,000 vehicles in the first quarter of 2022, a year-on-year increase of 68%. In the earnings conference call, CEO Elon Musk and CFO Zachary Kirkhorn said that they are still confident that the delivery volume will increase by at least 50% on the basis of 2021 this year.

■ Xu Jiayin Experience Hengchi 5

According to the official news of Hengchi Automobile, on April 21st, three Hengchi 5s appeared in Guangzhou Evergrande Center, and Xu Jiayin, Chairman of Evergrande Board of Directors, and the management team experienced Hengchi 5s in all directions.

According to Liu Yongzhuo, President of Hengchi Automobile, all the work of Hengchi 5 is progressing smoothly, and the pre-sale is about to be fully launched. The first batch of exhibition experience centers and sales centers of Hengchi will be opened in 15 key cities such as Tianjin, Shanghai and Guangzhou in the near future.

Prior to this, Evergrande Group held a high-profile global creditors’ conference call, and before this important meeting, Xu Jiayin specially presided over the mobilization meeting of Evergrande Automobile to "achieve Hengchi 5 mass production in three months". Xu Jiayin once asked the Evergrande team to work hard for three months and mass-produce Hengchi 5 on June 22nd, laying a solid foundation for the healthy and sustainable development of Evergrande.

Supplier dynamics

■ Anson China Global Distribution Center was closed due to the epidemic.

Anson issued a circular letter on April 18th, stating that with the government’s tightening of closure measures, especially in Shanghai, our global distribution center in China was forced to close, which affected our business.

Previously, Shanghai distribution center was responsible for the distribution of goods in Shenzhen, Suzhou and Leshan. According to the data of Anson official website, Anson Shanghai Solution Engineering Center (SEC) was established in 2010, focusing on the development of power management solutions, focusing on automotive applications and providing a development platform.

It is reported that Ansenmei has three factories in China, which are located in Leshan, Suzhou and Shenzhen. In addition to the closure of these places affecting local business, smaller cities have also begun to strengthen their closure. The company is also closely responding to the interruption of suppliers of materials, equipment and services.

■ Faurecia and Hella merged to publish the Chinese name "Freia"

On April 22nd, FORVIA, the seventh largest automotive technology supplier in the world, announced that the Chinese name of the group was Freia.

On January 31 this year, Faurecia completed the acquisition of the controlling equity of Haila. On February 7th, Faurecia and Hella announced that the merged new group was named FORVIA. FORVIA stands for action and required agility, as well as the commitment, confidence and measures of the new group to promote the transformation of road travel mode.

The Chinese name of the new group, Freya, combines the Chinese transliteration of its English name FORVIA. At the same time, it is also the inheritance and continuation of Faurecia brand and culture, which indicates that the new group will continue to highlight the core elements of Faurecia and Haila brands. In addition, the word "Rui" in the Chinese name is originally meant to be a token made of jade, and at the same time represents auspicious signs.

According to Freya officials, under the names of FORVIA and Freya, the new group will integrate the complementary technological and industrial advantages of Faurecia and Hella and become a reformer who foresees and realizes the transformation of travel.

■ Contemporary Amperex Technology Co., Limited EVOGO power exchange service started in Xiamen.

On April 18th, the EVOGO power exchange service was officially launched in Xiamen. The first four quick-change stations that started the service were located in Siming District, Huli District and Haicang District of Xiamen. It is estimated that by the end of this year, 30 quick-change stations will be completed in Xiamen. By then, there will be a quick change station within every 3 km service radius on Xiamen Island.

It is reported that at present, the lowest monthly rental price of chocolate battery replacement blocks is 399 yuan/block, and the rental price will be dynamically adjusted according to the different usage conditions of users. The service price of the quick change station is equivalent to that of the quick charge station, and will be dynamically adjusted according to the site and time of the station.

In January of this year, Times Electric Service, a wholly-owned subsidiary of Contemporary Amperex Technology Co., Limited, released the power exchange service brand EVOGO and the overall solution of combined power exchange. The overall solution of combined power exchange consists of three products: "power exchange block, quick exchange station and APP". Chen Weifeng, general manager of Times Electric Service, said that the first batch of EVOGO power exchange services will be launched in 10 cities.

■ The Ministry of Industry and Information Technology has set up a "white list" of 666 enterprises operating in Shanghai.

On April 16th, the Shanghai Economic and Information Committee issued the "Guidelines for Prevention and Control of Epidemic Situation of Industrial Enterprises in Shanghai (First Edition)", which promoted enterprises to resume work and production in an orderly and effective manner, and required all district governments, towns and parks to actively support the resumption of work and production.

Previously, the Ministry of Industry and Information Technology has sent a working group in front of Shanghai to promote the stable production and resumption of production of key industrial enterprises and ensure the smooth operation of the supply chain of the industrial chain.

On April 5, the Ministry of Industry and Information Technology set up a "white list" of key enterprises in the field of industry and information technology, and concentrated resources to give priority to ensuring that 666 key enterprises in key industries such as integrated circuits, automobile manufacturing, equipment manufacturing and biomedicine resumed production.

In the "white list of the first batch of key enterprises in Shanghai" circulated on the Internet, there are 250 automobile-related enterprises, such as GM and others, among which Lingang is listed as "discontinued enterprises that need to resume work". (Text/car home Cheng Gong)

On the preferential promotion channel in Nanning, car home, we are pleased to announce that preferential activities are under way! As an SUV model that has attracted much attention, the highest discount of Xingyue L in Nanning reached 15,000 yuan, and the lowest starting price was only 122,200 yuan. This is an excellent opportunity for you to buy this excellent model at a more affordable price. If you want to know more details about Xingyue L, please click the "Check Car Price" button in the quotation form to get a higher discount.

The exterior design of Xingyue L car series is very unique, and the front face adopts a large-size air intake grille, which shows a strong sporty atmosphere. The air intake grille is decorated with chrome trim strips, which further highlights the luxury of the car. The body lines are smooth and the overall style is very fashionable. With the sliding back design of the roof, the whole car looks more dynamic. The side of the car body is outlined by a number of smooth lines, and the visual effect is excellent. The rear part of the car adopts a streamlined shape, which makes the whole car look more atmospheric. The taillights are designed through, which is very recognizable. In a word, the exterior design of Xingyue L car series is excellent, and it is a model worth looking forward to.

Xingyue L is a medium-sized SUV with a body length, width and height of 4770*1895*1689mm and a wheelbase of 2845mm respectively. The lines on the side of the car are smooth and strong, showing movement and strength. The front and rear wheel tracks are all 1610mm, the front tyre size is 235/50 R19, and the rear tyre size is also 235/50 R19. The overall design is fashionable and atmospheric, and it is an impressive SUV model.

The interior design style of Xingyue L car series is fashionable and dynamic, paying attention to the driver’s comfort and convenience of operation. The steering wheel is wrapped in leather, which feels comfortable and the position can be manually adjusted up and down and back and forth. The central control screen has a size of 12.3 inches and is equipped with a voice recognition control system, which supports multimedia, navigation, telephone, air conditioning and skylight operations. The front and rear rows are equipped with USB and Type-C interfaces, which is convenient for users to connect devices. The seat is made of imitation leather. The main seat supports the adjustment of front and rear, backrest, height and lumbar support. The auxiliary seat supports the adjustment of front and rear and backrest. The driver’s seat is also equipped with heating and ventilation functions, which can be electrically adjusted and memorized. The backrest of the second row of seats can be adjusted, and the rear seats can be laid down in proportion, providing a more flexible space combination. Generally speaking, the interior design of Xingyue L car series is simple and fashionable, with both comfort and practicality, bringing users a better driving experience.

Xingyue L is equipped with a 2.0T 218 horsepower L4 engine with a maximum power of 160kW and a maximum torque of 325 N m.. It uses a 7-speed wet dual-clutch gearbox to provide a smooth shifting experience. This engine has excellent power performance and high efficiency, bringing drivers a more comfortable and pleasant driving experience. Whether it is daily city driving or high-speed driving, it can be easily competent. At the same time, the engine of Xingyue L also has the advantages of low noise, low vibration and low fuel consumption, allowing drivers to enjoy a quieter and more environmentally friendly driving experience while driving.

In the evaluation of the owner of car home, it can be seen that his love for Xingyue L 2021 2.0T EVO Two-Drive Wisdom Edition is beyond words. He mentioned the advantages of the car, such as rich configuration, advanced appearance and large enough space. At the same time, it also showed excellent stability and comfort during actual driving. Car home owner @ Chengdu Cheyou 0964484 also specifically mentioned the excellent performance of the car in complex road conditions, which can be easily handled whether it is starting from the urban area, running the expressway, taking the national highway, entering the rural road or climbing up the hill and potholes, fully demonstrating the advantages of extra large space in the trunk. Driving the stars with my parents everywhere for a ride is full of praise for the elderly, which further proves the comfort and practicality of the car. On the whole, Xingyue L 2021 2.0T EVO two-wheel drive Zhizun Edition is a model worthy of recommendation, which can bring excellent driving experience and comfort to car owners whether driving in the city or traveling long distances.

　　The widely circulated online articles also questioned lithium batteries, including: lithium batteries are highly toxic, short-lived, explosive and harsh in use conditions; Unable to recycle, resulting in great environmental pressure … … Is this really the case? The "Verification" column of People’s Daily continued to interview many industry experts to explore the truth.

　　Lithium batteries are highly toxic and dangerous goods?

　　Response: Lithium batteries do not contain toxic substances, and the impact is far less than that of lead-acid batteries.

　　"Strictly speaking, lithium-ion batteries and lithium batteries are still conceptually different." Wang Fang, chief expert in the field of power batteries in China Automotive Technology Research Center, secretary-general and senior engineer of battery testing and application technology alliance, said that lithium batteries usually refer to batteries with lithium metal or lithium alloy as the negative electrode and non-aqueous electrolyte. Lithium-ion battery refers to rechargeable secondary battery, the negative electrode does not use metal lithium, and it works by lithium ion moving between the positive and negative electrodes. However, in daily life, people are used to calling lithium-ion batteries lithium batteries or lithium batteries for short.

　　It is understood that most of the new energy vehicles promoted in China (including pure electric vehicles and plug-in hybrid vehicles) use lithium-ion batteries, of which Ferrous lithium phosphate accounts for 80%— 90%, ternary lithium batteries have also been widely used in passenger cars.

　　In response to the statement that lithium batteries are "highly toxic dangerous goods" pointed out in the online article, Wang Fang refuted that lithium batteries do not produce any toxic and harmful heavy metal elements and substances such as lead acid, nickel chromium and nickel hydrogen, and are relatively less polluted. And its electrolyte is organic solvent and lithium salt, mostly non-toxic or low-toxic; However, the decomposition or hydrolysis products of lithium batteries are hydrofluoric acid and other fluorine-containing compounds, which are corrosive and toxic.

　　Liu Haojie, a researcher-level senior engineer at the 18th Research Institute of China Electronics Technology Group, said that the lithium-ion battery itself does not contain toxic substances, and the carbon in the negative electrode and the metal oxide in the positive electrode are basically non-toxic. Because lithium-ion batteries belong to a sealed system, they will not be exposed to these substances in normal use. "In any case, its impact is far less than that of the most widely used lead-acid battery at present."

　　Lithium batteries have short life and harsh conditions?

　　Response: The life of power lithium-ion battery can reach 2000 cycles, and the battery management system can limit "overcharge and overdischarge".

　　How long is the current lithium battery life? Will shallow charging and discharging and overcharge and overdischarge affect the safety and life of the battery?

　　"There are many factors that determine the service life of power lithium-ion batteries, including the characteristics of the system itself, as well as the manufacturing process and working conditions. A high-quality battery system and scientific system management can achieve a long service life. " Wang Fang said that according to the cut-off condition that the capacity decays to 80% and the discharge depth test of 100%, the life of power batteries can basically reach 2000 cycles.

　　"Overcharging and overdischarge means that the voltage of the battery exceeds or falls below the specified cut-off voltage during charging and discharging, which will bring harm to the performance and life of the battery." Wang Fang said, but the BMS battery management system in the battery will limit and protect it. It will limit the charging of the battery at low temperature and recharge it when it is heated to a suitable temperature. Wang Fang said that in order to ensure the safety of lithium-ion batteries, there are a series of safety protection designs from battery cells, modules to battery systems to prevent the batteries from being overcharged and over-cooled, and alarm and protect them in time in case of abnormality.

　　It is mentioned in the net that there have been media reports that "Tianjin No.18 Institute has proved that lithium batteries burn and explode in almost all projects such as high temperature and high pressure, puncture and impact, and overcharge and overdischarge".

　　In this regard, Liu Yanlong, secretary general of China Chemical and Physical Power Industry Association, said that at the end of May 2014, the 18th Research Institute of China Electronics Technology Group was interviewed by the media, but the phenomenon of battery burning and explosion in the program was caused by dismantling the protection circuit according to the requirements of program recording, and then conducting abuse experiments. The main purpose of this experiment is to let users know about the possible dangerous situation of ternary lithium battery without protective measures under abuse conditions.

　　"The safety of lithium-ion batteries is theoretically controllable, and most of the safety problems are caused by product defects and abuse." Liu Yanlong said. "But the safety of battery cells, modules and systems alone is not enough to ensure the absolute safety of electric vehicles equipped with lithium batteries." Li Ping, Chairman of Contemporary Amperex Technology Co., Limited New Energy Technology Co., Ltd. (CATL), introduced the current top Model— S used 7104 Panasonic ternary lithium batteries, and made great efforts in battery safety protection, including setting sensors, being controlled by battery control system, and using a large number of high-strength aluminum alloys and other materials for collision protection. With these safety designs, the probability of safety accidents still reaches one in ten thousand.

　　Wang Qinghua, a researcher-level senior engineer at the 18th Research Institute of China Electronics Technology Group, also pointed out that the products in the electric vehicle battery market are mixed, and the batteries produced by some manufacturers have poor consistency, and the effectiveness of the management system is not very effective. The problem of a single battery will have a certain impact on the overall life of the battery pack. In this regard, Wang Qinghua suggested that the government should improve the corresponding test and verification standards and strengthen the management, supervision and testing of the electric vehicle market.

　　Is the pollution of waste lithium batteries uncontrollable?

　　Response: Due to relatively small environmental risks, lithium batteries have not been included in hazardous waste management, but the recycling system should be laid out as soon as possible.

　　Is there a compulsory recycling policy for lithium batteries at present? Is it true that waste lithium batteries will cause great environmental pressure, as stated in the online article? Wang Fang said that at this stage, waste batteries that are included in hazardous waste management by environmental protection departments include waste cadmium-nickel batteries and waste lead-acid batteries. Disposable batteries, lithium-ion batteries, nickel-hydrogen batteries, etc. are not included in hazardous waste management because of their relatively small environmental risks.

　　However, when waste lithium-ion batteries enter the environment, the electrode materials and electrolyte react with other substances in the environment, such as hydrolysis and oxidation, which may cause heavy metal ion pollution such as nickel, cobalt and manganese, fluorine pollution and some organic pollution. So, can these pollutions be controlled?

　　Wang Fang said that for the treatment of lithium-ion batteries, the "Recycling Policy for Power Batteries of Electric Vehicles (2015 Edition)" drafted by the Environmental Protection Department of the National Development and Reform Commission stipulates that wet smelting technology is encouraged to treat waste lithium-ion batteries, and the comprehensive recovery rate of nickel, cobalt and manganese should be no less than 98%. "For the processing technology of lithium-ion batteries, China has always had research teams from universities and conducted cooperation and exchanges with the United States." Wang Fang said.

　　On January 8th, the Ministry of Industry and Information Technology issued the Interim Measures for the Administration of Industry Standard Announcement on the Comprehensive Utilization of Waste Power Batteries of New Energy Vehicles (Draft for Comment), which intends to implement dynamic management of enterprises for the comprehensive utilization of waste power batteries of new energy vehicles, and entrust relevant professional organizations to assist in the relevant work of announcement management.

　　Hu Shuqing, chief expert and researcher-level senior engineer of China Electronics Science and Technology Corporation, said that for lithium-ion batteries with Ferrous lithium phosphate, lithium manganate and ternary materials with low cobalt content as positive active materials, due to the low commercial value of recycling, enterprises are not interested. The recycling of these used batteries must be issued by the state policy, in order to successfully realize the closed loop of the industry. At present, China has issued some policies and standards, such as the classification of used batteries, storage and transportation norms, and technical policies for pollution prevention and control of solid waste and hazardous waste, but they are not sufficient.

　　"The work of recycling lithium-ion batteries should be laid out as soon as possible." Wang Binggang, head of the National 863 Energy-saving and New Energy Vehicle Project Supervision and Consulting Expert Group, said that to establish a power battery recycling system, it is necessary to improve battery standardization, establish a code traceability system, implement strict reward and punishment measures, and conduct qualification management for recycling enterprises.

　　(Reporter Wang Zheng Zhu Hong)

　　▌ This article source: Guangzhou Daily, Suzhou Public Security Micro Police, Fuzhou Public Security.

　　CCTV News:I don’t need my mobile phone number. Can I just stop it? If you think so, you are all wet!

　　The netizen bought a mobile phone card and accidentally found that the former card owner’s Alipay and other information can be known!

　　Recently, a message circulated in the circle of friends:

　　I helped my son to get a new mobile phone SIM card. As soon as I put it in my mobile phone, it shows that this number has been registered with WeChat (the contact number keeps popping up in the system, asking to add friends), and then I use this mobile phone number to check Taobao and Alipay, all of which are easily entered. Fortunately, I am a good person, otherwise the money in the bank card bound by this person may be inexplicably gone in a blink of an eye … …

　　This message came from a netizen named "Noisy Mom". She said that after buying this second-hand mobile phone card, she found that the former card owner used this number to bind too much information. She wants to find the former card owner and untie his bound things. But obviously, it is not possible to call this number again, so where can I find the former card owner?

　　Noisy mom searched the Internet for related questions, but who knows that some related "tutorials" jumped out: the mobile phone number is the login name, as long as you bind the mobile phone, and you can also tell you intimately whether this mobile phone is registered with Taobao or Alipay; Don’t know the login password? The system will also tell you what to do if you forget your password. You only need a mobile phone verification code.　

　　That is to say, as long as you have your mobile phone number, your account number and password! Give it a try, if you really enter this card owner’s Taobao account, you can see all kinds of information — — Where did you go to college, where did you often receive the goods, where did you live, where did your girlfriend live, where did you go before, and where did you go now … …

　　When logging in to Weibo registered with this mobile phone number, even the password is the default, and all the Weibo information that you and others can see is presented one by one, so that you can not only know the life experience of the original card owner, but also know some subtle moods at a glance.

　　With this simple method of resetting the password, you can definitely get into Alipay and the bound bank card. As long as you go in, you can control the money inside like a master. Think carefully and be extremely afraid!

　　Former card owner: I forgot to untie the number I used in college after changing it.

　　"Noisy Mom" found a frequent number through the information on the mobile phone card and tried to call it in the hope of finding the owner of the original number. When I heard the phone call from "Naomao", the other end of the phone was shocked. Soon, the noisy mother got in touch with the original owner of the mobile phone number.

　　The former owner of this mobile phone number said that it was used in college. After work, the company gave it a new number, and the old number was no longer used, but I forgot that it was also bound with Weibo, WeChat, Alipay and two bank cards.

　　"It’s met a good man! In the process of unbinding, the mobile phone verification code is constantly needed, and the mother keeps sending it. " It took a lot of effort, and the former card owner finally untied Alipay and other software with the help of his mother.

　　It turns out that the number you stopped using will be recycled by the sales number and given to others for the second time. If you used it to bind Weibo, WeChat, Alipay, bank card, etc. before and didn’t cancel it, it would be very dangerous! Most people may not realize it.

　　Operator: the data bound to other companies cannot be cleaned up after the mobile phone sales number is recovered.

　　The customer service staff of the communication operator said that if a mobile phone number is overdue for more than 60 days, it may be recycled, and when it will be released for reuse, the time may be long or short. This is not necessarily the case.

　　Why is there so much personal information bound to the recycled SIM card?

　　The customer service replied that this is a secondary numbering, and some information related to the operator company will be cleaned up, but there is no way to clean up the information of other companies.

　　Introduction: What should I do if my mobile phone is lost or my number is disabled?

　　1. Back up the phone book

　　Some people have too many important customers in their mobile phone address book, but they neglect it, and they don’t know it’s too late until they throw away their old cards. In addition, it is best to save the old card after replacing the mobile phone card to avoid being used by others.

　　2. The mobile phone number does not need to be cancelled in time.

　　Some friends directly abandon the old mobile phone card when changing the mobile phone number, thinking that it will automatically close and cancel as long as it is not used. In fact, although it will be automatically cancelled, it will take several months. During this period, the system will automatically deduct the monthly rental fee until it is cancelled. The mobile phone is connected with the user’s credit. Please cancel it in time for future business or banking business.

　　3. Change the bank card binding

　　After the mobile phone number is changed, it is necessary to modify the passwords of various bank cards and credit cards bound to it as soon as possible. You can also log in to online banking to modify online banking account information and change your mobile phone number. Those who have stopped selling their numbers can only bring their bank cards and ID cards to the business hall of the bank.

　　4. Change QQ number and WeChat binding.

　　Many people log in to QQ and WeChat directly through their mobile phone numbers. It is recommended to complete rebinding online before changing the mobile phone number.

　　5. Change application bindings such as Taobao and Alipay.

　　You can change the bound mobile phone number directly from the website. Taking Taobao as an example, changing the new mobile phone number requires the verification code of the original bound mobile phone. If you can’t receive the verification code, you can only apply for email replacement or contact customer service to modify it.

　　6. Change the Weibo binding.

　　Take Sina Weibo as an example.

　　7, change the mailbox binding

　　Take Netease mailbox as an example:

　　8. Change the registration information of 12306 Ministry of Railways train ticket in official website.

　　9. Member information change

　　Some supermarket credit cards and daily chemical store credit cards can enjoy discounts by directly saying the mobile phone number and involve points. Please also remember to change it in time.

　　The sudden entry of "giants" broke the development rhythm of the whole community group buying track, and the rules of the game changed accordingly. The industry has changed from "innovation" and "implementation" to "capital" and "subsidy". It is not surprising that the life of the same journey has walked out of an inverted "V" trajectory from rise to fall.

　　The "giants" are still involved in the track of community group buying, but the startup companies that started first were "conveniently" crushed. On the morning of July 7, Tongcheng Life (now renamed Honey Orange Life), a community group buying platform, officially declared bankruptcy. According to the reporter, its founder, chairman and CEO He Pengyu was still talking with suppliers that night. During more than four hours of talks, he shed tears several times and promised to try his best to pay off his debts, but there was nothing he could do.

　　Tongcheng Life is not the first enterprise to declare bankruptcy in the community group buying circuit, but its bankruptcy was called "the first case of bankruptcy in community group buying" by the media because of its high popularity, which caused a shock in the industry.

　　Why is the same life "sudden death"? What is the situation of community group buying now? The reporter interviewed some people familiar with the matter.

　　From innovation to subsidies.

　　The usual reason for a company’s bankruptcy is poor management, but living together — — This company, which was established in January 2018 and belongs to Suzhou Fresh Orange Technology Co., Ltd., is obviously not included here. From He Pengyu’s internal letters to employees and suppliers, we can clearly see the inverted "V" trajectory of Tongcheng life from its rise to its rapid "fall". According to He Pengyu’s open letter, it only took about a year and a half. "Tongcheng Life has achieved a front-end performance and entered a benign development stage."

　　At that time, Tongcheng Life was still the star of the community group buying track, which was recognized by many investment institutions. According to reports, in 2019, Tongcheng Life received four consecutive rounds of financing, ranging from tens of millions of yuan to 100 million US dollars. In June 2020, Tongcheng Life announced that it had completed the $200 million Series C financing. According to public reports, it was valued at about $1 billion before bankruptcy, and it can be regarded as a small and beautiful startup company.

　　In recent two years, the community group buying model developed from fresh e-commerce has rapidly developed into a new format of e-commerce industry, which provides a new way to promote agriculture and enrich farmers and attract flexible employment in cities and towns, and also attracts a large number of entrepreneurial teams. Ten Hui Tuan, Xingsheng Youxuan and Tongcheng Life are the three fastest teams, which were once called "the third group" by the outside world.

　　However, the booming community group buying market has also attracted "giants" to enter the market. Since September, 2020, Ali, Meituan, Didi, Pinduoduo and others have offered "big killers" of price wars, and "buying food for one cent" has become popular, even the vendors in the vegetable market have felt the pressure.

　　The sudden entry of "giants" broke the development rhythm of the whole community group buying track, and the rules of the game changed accordingly. The industry has changed from "innovation" and "implementation" to "capital" and "subsidy".

　　According to the reporter’s understanding, in the face of the sudden crisis of survival, Tongcheng Life has also struggled, and at the same time, it has also sought capital mergers and acquisitions. It has discussed the acquisition intentions with JD.COM, Ali, ByteDance, Meituan, etc., and even a team has settled in due diligence, but in the end it failed due to changes in the wind direction of the industry.

　　Li Ming (pseudonym), a former executive of Tongcheng Life, told the reporter, "At the end of June, Tongcheng Life also hoped to get better business data by increasing marketing efforts, and then obtain a ‘ Giant ’ The olive branch of the merger, but unfortunately it was rejected again. Later, due to the expiration of brand authorization, executives decided to start renaming and strategic transformation to make a comeback. Regrettably, at this time, suppliers began to concentrate on collecting money, which eventually led to the break of the capital chain. "

　　At present, community group buying is still in the stage of rapid expansion and growth. Meituan (Meituan Optimization), Pinduoduo, Didi (Orange Heart Optimization) have occupied the head position, and Xingsheng Optimization and Ten Clubs have also been incorporated by JD.COM and Ali. After Tongcheng Life left, community group buying has become a game for "giants".

　　After the shopping, it was a huge loss in the industry.

　　The industry is not surprised by the fall of Tongcheng life. After the community group-buying track entered the era of "giants", it became the norm to fight for prices and head rebates, and no one could achieve positive benefits in the short term, while the service innovation and experience innovation at the customer end came to a standstill, and the internal consumption of the whole industry was serious.

　　It is understood that the current profit rate of the community group buying industry has rapidly declined from profit to loss. Li Ming revealed that before the "giant" entered the market (before September 2020), the monthly sales of a platform with a volume like Tongcheng Life ranged from 800 million yuan to 1.2 billion yuan, and the gross profit was around 20%. After the "giants" entered, with the huge subsidies to consumers and the competition for "heads", the monthly revenue of the platform dropped by more than 80%, and the gross profit directly turned negative, and the whole community group buying market further slipped into the mire of losses in the whole industry.

　　The regulatory authorities have repeatedly taken measures to curb this crazy involution under the disorderly expansion of capital. In December 2020, the General Administration of Market Supervision and the Ministry of Commerce organized an administrative guidance meeting to regulate the order of community group buying, with the participation of six Internet platform enterprises, including Alibaba, Tencent, JD.COM, Meituan, Pinduoduo and Didi. At the meeting, the "nine no’s" of community group buying were put forward. In March this year, the operators behind five community group buying platforms, including Meituan Youxuan (Shenzhen Meituan Youxuan Technology Co., Ltd.), were fined 1.5 million yuan for alleged unfair price behavior.

　　But this still failed to curb the expansion of the "giants". On the one hand, they continue to steal similar "1 cent" activities, on the other hand, they seize the terminal market by greatly increasing the commission rewards and subsidies of "heads". Li Ming said that at present, the rewards and subsidies given by several giants to the "heads" of community group buying terminals have reached the highest level of 15% to 18%, basically subsidizing the platform’s own income. This is irrational competition and is suspected of disguised price war.

　　On July 8, the reporter inquired about some community group buying platforms, which not only had the activity of "sending 15 eggs in 5 days", but also had 1.25 yuan a catty of sand sweet potatoes and 0.99 yuan a red heart pitaya. On the community fresh-keeping platform, the single pitaya with red heart is from 4 yuan to 5 yuan, and the sweet potato in sandy land costs 5 yuan a catty, which is much higher than the community group buying platform.

　　Behind the shopping price and subsidies is the huge loss of the whole industry. According to public reports, in the first quarter of this year, the adjusted net loss of Meituan reached 3.892 billion yuan, and the investment of Meituan in community group buying business was about 10 billion yuan, which is expected to reach 20 billion yuan this year. In the first quarter, Pinduoduo’s gross profit dropped to 49.74%, and Pinduoduo invested about 6 billion yuan in buying more vegetables, and will increase investment in 2021.

　　Suppliers are affected by the mess.

　　From the booming performance to being forced to declare bankruptcy and exit, the collapse of Tongcheng Life is not only regrettable, but also left a chicken feather.

　　In the early morning of July 8, He Peng Yu issued an open letter through his personal circle of friends, proposing three solutions to the bankruptcy of Tongcheng Life: to protect the rights and interests of all creditors to the maximum extent within the scope of law; Make every effort to preserve the existing assets, hand them over to the court for proper sealing and disposal, actively cooperate with the government’s guidance, and pay off the debts with the company’s assets; If the assets are not enough to pay off the debts, He Pengyu promises to start a business again. "I will record every debt clearly and try my best to repay the debts."

　　It is also known that on July 8, Tongcheng Life issued a repayment plan for the supplier before starting the bankruptcy liquidation procedure. It had already paid the salary for employees in June and promised to pay social security for employees in the future.

　　Although the entrepreneurial team of Tongcheng Life tried its best to make up for it, there were still many vegetable farmers, small vendors and even large and medium-sized suppliers who failed to get the payment on time.

　　Since 2019, an animal husbandry company has cooperated with Tongcheng Life to supply eggs, and it has been owed nearly 800,000 yuan. After the crisis of Tongcheng life broke out, Mr. Wang, the person in charge of the company, came to ask for arrears. "There are hundreds of egg farmers behind me, so I have to go to the door to collect debts."

　　According to the latest situation, on July 8, Tongcheng Life has started to repay some of its suppliers’ debts in advance, and the rest will be distributed by the court after the bankruptcy liquidation procedure is started. At present, the work is still in progress in an orderly manner.

　　As of the morning of July 9, more than 600 suppliers have reached repayment agreements with Fresh Orange Technology, and the money mainly comes from the loan raised by He Pengyu and the team.

　　On July 9, Mr. Wang booked a return ticket with the repayment agreement. But next time, if the community group buying platform collapses again, can suppliers be so lucky?

Recently, it was learned from the relevant departments of Baiyin City that the first live e-commerce competition and the selection of "Top Ten Online Goods Brands" in Baiyin City will officially start on May 1, with a duration of 15 days. At present, the organization and registration of the contest are being stepped up. The purpose of this competition is to select and train a group of outstanding live broadcast e-commerce talents, and at the same time select the "Top Ten Online Goods Brands" in Baiyin City. This will help to promote the standardization, digitization and branding of high-quality featured products in Baiyin, further promote rural income and help rural revitalization. It is understood that this competition is jointly organized by relevant departments of Baiyin City, aiming to explore and promote high-quality featured products in Baiyin region, promote rural economic development and help rural revitalization. The competition will last for 15 days, and excellent talents and brands will be selected through the preliminary, semi-final and final stages.

The deadline for registration of the contest is April 6th, and the time span of the contest is from May 1st to May 15th.

　　Weibo’s hot search list ranks 5.23 today. The Weibo Hot Search List will show hot news in real time. What hot headlines are on the Hot Search List today on May 23rd? Interested netizens take a look at the headlines of today’s hot search list in Weibo on May 23rd.

　　Weibo’s hot search ranking is the latest May 23.

　　List of Top 10 Hot Search List in Weibo

　　Headlines of Hot Events in Weibo Hot Search List TodayDetailed introduction

　　Psyduck

　　KFC’s Koda duck toys have set off a whole network craze again. Who can refuse such a lovely duck?

　　Aunt walks away from the accident scene warning tripod.

　　On May 21st, in Luoyang, Henan Province, a vehicle accident occurred, and a warning tripod was set up at the rear and was taken away by a passing aunt.

　　The color of the motherland photographed by satellite is too advanced.

　　Open the land of China with color cards, "picturesque"! The color of Jilin-1 # satellite shooting the motherland is too advanced.

　　Zhang Wenhong said that the COVID-19 epidemic may not end in the short term.

　　Zhang Wenhong said that the COVID-19 epidemic may not end in a short time. We need more time, more patience, more courage, more wisdom and technology to overcome all this.

　　Zhang Wenhong said that the inflammation induced by Omicron is weaker than flu.

　　Zhang Wenhong’s in-depth analysis: China’s epidemic situation changes and prevention and control effects, Omicron’s challenges and future prevention and control models.

　　Cyndi Wang QQ Music Tubang

　　Cyndi Wang’s songs are directly on the music list! The top ten accounts for nine! Everyone’s youth is back!

　　Doors of rebirth Douban opens at 6.6

　　Karry Zhang Yi’s "The Gate of Rebirth" scored 6.6, and there will be a sequel "The Road to Rebirth" in this drama. Do you think this score is high or low?

　　A nucleic acid detection site in Beijing uses expired sample preservation solution.

　　According to the website of Beijing Municipal Market Supervision Administration, the sample preservation solution being used in a nucleic acid testing site in Beijing exceeded its shelf life, and the Fengtai District Market Supervision Administration of Beijing punished it according to law, ordered the parties concerned to correct the illegal behavior, fined 50,000 yuan and confiscated illegal property.

　　That’s all about Weibo’s hot search ranking of 5.23 today. I hope I can help you.

　　　　Mei Lanfang’s swimsuit photos taken during her stay in the United States.

　　　　Mei Lanfang improved the hairstyle and clothing of the new fashion drama, and added fashion elements to the Beijing drama.

　　　　For the modern young audience, Mei Lanfang is just a symbol. From the textbook, we know that he is the first of the four famous artists and represents the culture of Peking Opera. Perhaps many people can’t tell the difference between Mei Lanfang and Anita Mui. In fact, Mei Lanfang is not only a master of art, but also the most popular fashion star of the year. Recently, some netizens exposed a group of unknown old photos of the Peking Opera master in real life in the forum. In this group of photos, a rare photo of Mei Lanfang wearing a swimsuit is particularly eye-catching.

　　Mei Lanfang loves fashion to take swimsuit photos.

　　　　The netizen said that this swimsuit photo was taken in Shanghai in the 1930s, when the social atmosphere was not so open. On the other hand, the shooting background seemed to be out of place with the word swimsuit. However, some netizens said that in Shanghai in the 1930s, fashionable people would take a few swimsuit photos. At that time, people often saw the appearance of swimsuits from those fashionable cigarette cases and moon cards. As a well-known Peking Opera actor at that time, Mei Lanfang was naturally unwilling to lag behind, and generously took such a swimsuit photo by the swimming pool.

　　　　According to the historical records of that year, in 1926, the public swimming pool in Hongkou, Shanghai was opened to the public, and men and women traveled together in Shanghai. By 1930, Gao Qiao Beach had been built, and swimsuits had long been the equipment of Shanghai-style figures. At that time, almost all the stars and celebrities-Shang Guanyunzhu, Ruan Lingyu, etc.-had fashionable styles in swimsuits. Mei Lanfang’s swimsuit photo was produced under such an "open" historical background, even though it was not taken in Shanghai but in the United States on the other side of the ocean. In 1946, when Drama Illustrated published this swimsuit photo of Mei Lanfang during her stay in the United States, it also caused quite a stir.

　　Love to take pictures, generous show camera

　　　　Mei Lanfang’s hobby of spare time also keeps ahead of the trend. In old Shanghai, it was fashionable to take photos in a photo studio, not to mention owning a camera. Cameras were a luxury at that time, and families who could buy them must be rich and fashionable enough. Mr. Mei Lanfang’s camera, which seems to be inadvertently painted, is also put into the photo to some extent as an ornament that embodies a kind of taste and shows off.

　　Singing Beijing Opera in Modern Costume

　　　　Besides taking photos, Mr Mei Lanfang used fashionable elements in Beijing Opera, and he was once called the "originator of fashion dramas in Beijing Opera". At that time, he personally created a new play "The Waves of the Evil Sea", and at the same time he created his own hairstyle and clothes for the new fashion play, which was true to others. It is understood that Mei Lanfang rehearsed three new fashion plays, among which "Deng Xiagu" and "A wisp of hemp" received great response. For a time, Peking Opera dressed in modern clothes became fashionable, and it did not lag behind the vernacular drama at that time.

Editor: Sun Jie

　　Chang ‘e V completed China’s first sampling and returning trip of extraterrestrial objects.
　　At 4: 30 on November 24th, China successfully launched the Lunar Exploration Project Chang ‘e-5, and landed in the pre-selected landing zone on December 1st. After the sampling of lunar soil was completed, the Chang ‘e-5 ascender took off from the lunar surface on December 3, and the Chang ‘e-5 returner successfully landed in the scheduled area of Siziwangqi, Inner Mongolia at 1: 59 on December 17, marking the successful completion of the first sampling and returning mission of extraterrestrial objects in China. Subsequently, the Chang ‘e-5 sample weighing 1,731 grams was handed over to China Academy of Sciences, where it will be stored, processed and analyzed in the "Lunar Sample Laboratory" located at the National Astronomical Observatory, officially opening the application and research of lunar samples and scientific data. As the aerospace system engineering with the highest complexity and the largest technical span in China, the Chang ‘e V mission is of milestone significance for China to improve the level of aerospace technology, improve the lunar exploration engineering system, carry out scientific research on the moon, and organize subsequent lunar and interstellar exploration missions.
　　Panorama camera ring beat imaging after Chang ‘e V landing.
　　The last global networking satellite of Beidou-3 was successfully launched.
　　At 9: 43 on June 23rd, China successfully launched the 55th navigation satellite of Beidou system and the last global networking satellite of Beidou-3 in xichang satellite launch center by using the long march 3b. The Beidou navigation satellite and supporting launch vehicle launched this time were respectively developed by China Academy of Space Technology and China Academy of Launch Vehicle Technology under China Aerospace Science and Technology Corporation, and many scientific research institutes such as Microsatellite Innovation Institute of China Academy of Sciences participated in the development and construction. This is the 336th flight of the Long March series of launch vehicles. With the strong support of measurement and control, ground transportation control, inter-satellite link transportation management, application verification and other systems, all the satellites in orbit launched before have been connected to the network. At this point, the deployment of Beidou-3 global satellite navigation system constellation was fully completed six months ahead of schedule.
　　The last global networking satellite of Beidou-3 was launched.
　　China’s unmanned submersible and manned submersible have made new breakthroughs.
　　On June 8th, Haidou-1, an all-sea-deep autonomous remote-controlled submersible developed by Shenyang Institute of Automation, China Academy of Sciences, returned from the sea trial aboard Exploration-1. During this voyage, "Haidou No.1" realized autonomous navigation and bottom-sitting operation near the seabed in Mariana Trench, with a maximum dive depth of 10,907 meters, which filled the gap of China’s 10,000-meter-class unmanned submersible. On November 28th, the all-sea deep manned submersible Struggler, led by the 702nd Research Institute of China Shipbuilding Group Co., Ltd. and jointly developed by the Institute of Deep Sea Science and Engineering of China Academy of Sciences, returned with the scientific research ship Exploration 1. The "Struggler" successfully landed in the Mariana Trench, creating a new record of 10,909 meters of manned deep diving in China, marking that China has reached the world leading level in the field of deep manned deep diving.
　　Haidou No.1 (I) and Struggler (II)
　　China takes the lead in drilling and producing deep-sea combustible ice with horizontal wells.
　　Natural gas hydrate is usually called combustible ice. On March 26th, the Ministry of Natural Resources held a video conference to reveal that the trial mining in the Shenhu sea area of the South China Sea with a water depth of 1,225m created two new world records of "total gas production of 861,400 cubic meters and average daily gas production of 28,700 cubic meters". During this trial mining, the researchers also independently developed a set of key technical equipment system to realize the industrialization of natural gas hydrate exploration and mining, created a unique environmental protection and monitoring system, and independently innovated to form an environmental risk prevention and control technical system. This trial production has overcome the core technology of drilling and producing horizontal wells in deep-sea shallow soft strata, achieved a major leap from exploratory trial production to experimental trial production, and achieved landmark results in the process of industrialization. China has also become the first country in the world to adopt horizontal well drilling and production technology to test and produce natural gas hydrate in the sea area.
　　Trial mining torch
　　Scientists find the bane of wheat "cancer"
　　Wheat scab is a devastating and difficult fungal disease in the world, and it is called "cancer" of wheat. Kong Lingrang, a professor at the Agricultural College of Shandong Agricultural University and the chief expert of the wheat innovation team of the modern agricultural industrial technology system in Shandong Province, and his team cloned Fhb7, a major gene for scab resistance, from the wheat-related plant Elytrigia elongata for the first time, and successfully transferred it into wheat varieties. It was confirmed for the first time that it not only had stable scab resistance, but also had broad-spectrum detoxification function in wheat disease-resistant breeding. Related research results were published online in Science on April 10th. At present, more than 30 units have used scab-resistant germplasm materials for genetic improvement of wheat scab resistance, and extensive experiments have been carried out in Shandong, Henan, Jiangsu, Anhui and other places, with good results. The above results have found a "golden key" to unlock the worldwide problem of scab.
　　Wheat infected by scab
　　Scientists reach the milestone of "the superiority of quantum computing"
　　Academician Pan Jianwei and Professor Lu Chaoyang of China University of Science and Technology cooperated with researchers from Shanghai Institute of Microsystems and Information Technology of Chinese Academy of Sciences and National Research Center for Parallel Computer Engineering Technology to build a 76-photon quantum computing prototype "Nine Chapters", which realized the rapid solution of the task of "Gaussian Bose Sampling" with practical prospects, making China successfully reach the first milestone of quantum computing research-the superiority of quantum computing, and laying a technical foundation for developing a large-scale quantum simulator that can solve problems with great practical value. Related results were published online in Science on December 4th.
　　Optical quantum interference object diagram
　　Scientists reproduce the history of biodiversity change on Earth for more than 300 million years.
　　The origin and evolution of life is one of the top ten scientific mysteries in the world. More than 99% of the creatures that once lived on the earth have become extinct. It is an important way to understand the present situation and development trend of the earth’s biodiversity by reconstructing the changing history of the earth’s biodiversity through fossil records. Professor Fan Juanxuan and Academician Shen Shuzhong of Nanjing University built their own large databases, independently developed artificial intelligence algorithms, and made a breakthrough by using the "Tianhe II" supercomputer, and obtained the world’s first high-precision Paleozoic marine biodiversity change curve of more than 300 million years, with a resolution 400 times higher than that of similar international studies. The new curve accurately depicts many major biological extinction and radiation events in geological history and their relationship with environmental changes. The results were published in Science in the form of a long research article on January 17th.
　　Conop, a supercomputing system developed by the team
　　China’s highest parameter "artificial sun" was built.
　　China’s new generation controlled nuclear fusion research facility "China Circulator No.2 M" (HL-2m) was completed and discharged on December 4th, marking China’s entry into the forefront of global controlled nuclear fusion research. The project was independently designed and built by Southwest Institute of Physics of Nuclear Industry of China National Nuclear Corporation. It is reported that this device is the largest advanced tokamak device with the highest parameters in China at present, and it is a new generation of advanced magnetic confinement nuclear fusion experimental research device in China. With more advanced structure and control mode, the plasma volume is more than twice that of the existing devices in China, the current capacity is increased to more than 2.5 MPa, and the ion temperature can reach 150 million degrees Celsius. It can realize high density, high specific pressure and high bootstrap current operation, which is an important support for realizing the leap-forward development of nuclear fusion energy development in China.
　　"China Circulator No.2 M" Device
　　Scientists have solved unsolved geometric problems for more than 20 years.
　　China University of Science and Technology professors Chen Xiuxiong and Wang Bing published a paper on the convergence of high-dimensional Keller-Ritchie flow, which took the lead in overcoming Hamilton-Tian conjecture and partial zero-order estimation conjecture-these are the core conjectures that have been unresolved in the field of geometric analysis for more than 20 years. Related results were published in the Journal of Differential Geometry in early November. It is understood that the length of the paper exceeds 120 pages, and it takes six years from submission to official publication. This paper introduces many new ideas and methods, which have a far-reaching impact on geometric analysis, especially on the study of Ritchie flow. It is reported that this paper is a significant progress in the field of geometric analysis, or it will promote many related works.
　　Comparison between geodesic and function level set
　　The Chinese and American teams won the 2020 Gordon Bell Award.
　　On November 19th, the application achievements completed by Jia Weile of Institute of Computing Technology of Chinese Academy of Sciences, E Weinan of Chinese Academy of Sciences, Zhang Linfeng of Beijing Big Data Research Institute and their collaborators won the Gordon Bell Award, the highest international award in the field of high-performance computing applications. In this work, the combination of intelligent supercomputing and physical model is adopted for the first time in the world, which leads the scientific computing to move forward from the traditional computing mode to intelligent supercomputing. Through high-performance calculation and machine learning, this achievement has raised the limit of molecular dynamics by several orders of magnitude, reached the system scale of hundreds of millions of atoms, and ensured the high accuracy of "ab initio calculation", and the simulation time scale is 1000 times higher than that of traditional methods, which is expected to play a greater role in solving practical problems in the fields of mechanics, chemistry, materials, biology and even engineering.
　　Machine learning simulates 100 million atoms.
　　Other news candidates (in chronological order)
　　Scientists discover ferromagnetic quantum critical point evidence for the first time
　　The team of Yuan Huiqiu, a professor at Zhejiang University, discovered the ferromagnetic quantum critical point in pure heavy fermion compounds for the first time, and observed the strange metal behavior. The related results were published online in Nature on March 5. This is the first time that scientists have found conclusive experimental evidence of the existence of quantum critical point in a pure ferromagnetic material system, and observed strange metal behavior similar to that of high-temperature superconductors: when the temperature approaches absolute zero, the low-temperature resistance changes linearly with temperature, and the specific heat coefficient diverges logarithmically with temperature. This discovery breaks the traditional idea that ferromagnetic quantum critical point does not exist, and extends the strange metal behavior to ferromagnetic quantum critical materials, which opens up a new direction for the study of quantum phase transition.
　　Scientists discover accurate diagnosis and treatment of schizophrenia for the first time
　　Biological marker
　　Jiang Tianzai and Liu Bing team of Brain Network Group Research Center of Institute of Automation, China Academy of Sciences, together with researchers from many teams at home and abroad, broke through the bottleneck that the diagnosis and treatment of mental illness only depends on the empirical judgment of symptoms, and successfully established an accurate diagnosis and treatment model of schizophrenia by using multi-group information and artificial intelligence methods. For the first time, the research team found that the abnormal function of the striatum circuit in the brain is a biological marker for the accurate diagnosis and treatment of schizophrenia. Using this biological marker, not only can we quantitatively evaluate the pathological damage of striatum in individual patients, but also can accurately diagnose schizophrenia and predict the individualized curative effect. The imaging marker has been independently verified in patients with mental illness in multiple imaging centers and various populations. The research results were published in Nature-Medicine on March 23rd.
　　Research reveals the precise mechanism of first-line anti-tuberculosis drugs
　　Academician Rao Zihe from Institute of Immunochemistry, University of Shanghai for Science and Technology and his collaborators successfully analyzed the three-dimensional structure of drug target-drug of key arabinosyltransferase complexes EmbA-EmbB and EmbC-EmbC of mycobacteria for the first time in the world, and revealed the precise molecular mechanism of the first-line anti-tuberculosis drug ethambutol acting on this target for the first time, which laid an important foundation for solving the drug resistance problem of tuberculosis and developing new anti-tuberculosis drugs. On April 24th, the research paper was published online in Science. At present, the research team is making every effort to promote the research and development of new anti-tuberculosis drugs and accelerate the transformation of basic research results.
　　Scientists reveal the genetic relationship between prehistoric people in North and South China.
　　On May 15th, Science published a research paper online led by Fu Qiaomei, a researcher at the Institute of vertebrate paleontology and Paleoanthropology, Chinese Academy of Sciences, and participated by many units. The research team successfully captured and sequenced the genomes of several ancient human individuals. Relying on advanced ancient DNA technology, it revealed the genetic relationship between the southern mainland population and the northern mainland population, and confirmed the southern origin of austronesian family population in China, filling the important information gaps in the inheritance, evolution and adaptation of prehistoric humans in the East, especially in China. This achievement is of great scientific value and social significance for exploring the migration history, genetic pattern and internal integration process of prehistoric people in China, and for clarifying the ancestral origin of austronesian family people who mainly live in Taiwan Province, China and Pacific islands.
　　China’s first independent intellectual property rights heavy ion therapy system was officially put into clinical treatment.
　　On June 6th, "China’s first heavy ion therapy system with independent intellectual property rights was officially put into clinical treatment technology press conference in Wuwei" was held in Xi ‘an. Wuwei Heavy Ion Center assembled the first heavy ion therapy system with independent intellectual property rights in China. After years of construction, it was officially opened on April 1, 2020. Heavy ion therapy has the characteristics of small side effects, short course of treatment and good curative effect, and has a good curative effect on most solid tumors. It is an accurate, efficient and safe advanced radiotherapy method. According to reports, the successful construction of the project has realized the localization of the world’s largest medical equipment, making China the fourth country in the world to realize heavy ion therapy for tumors after Japan, Germany and the United States, breaking the monopoly of foreign heavy ion technology for many years and realizing a historic breakthrough in the clinical application of the largest medical equipment in China.
　　The high-speed maglev test prototype with a speed of 600 kilometers per hour was successfully tested.
　　The 600 km/h high-speed maglev test prototype developed by CRRC Qingdao Sifang Locomotive & Rolling Stock Co., Ltd. successfully ran on the maglev test line on June 21, marking an important breakthrough in the research and development of high-speed maglev transportation system in China. On the maglev test line, the test sample vehicle was jointly debugged for the first time, and the dynamic operation test under various working conditions was carried out. The running state was good, and all key technical indexes met the design requirements and reached the design expectation. The successful trial run of the test prototype has achieved a breakthrough from static to dynamic operation, and obtained a large number of key data. The key performance of the high-speed maglev system and core components has been preliminarily verified, which provides important technical support for the subsequent development of the high-speed maglev project prototype. According to the plan, the prototype of the high-speed maglev project with a speed of 600 kilometers per hour will be off the assembly line by the end of 2020, forming a complete set of high-speed maglev technology and engineering capabilities.
　　Scientists reveal molecular panorama of lung adenocarcinoma
　　On July 9th, Cell published a sketch of protein group of large-scale clinical lung adenocarcinoma drawn by Tan Minjia, a researcher from Shanghai Institute of Pharmacology, China Academy of Sciences, and seven research teams, including Academy of Military Medicine of Academy of Military Sciences and Academician He Fuchu of National protein Science Center (Beijing). This is the first large-scale, systematic construction of protein panorama of lung adenocarcinoma, and found molecular features closely related to the prognosis of patients, especially the protein molecular features of two major gene mutations in lung adenocarcinoma in China population. After 6 years’ research, the cancer and adjacent tissues of 103 patients with clinical lung adenocarcinoma were deeply analyzed by protein Group by using the cross-fusion research of protein omics, bioinformatics, tumor biology, pathology and clinical medicine. This work has scientific research significance for deeply understanding the pathological mechanism of lung adenocarcinoma, finding drug treatment targets and formulating more accurate treatment plans for lung adenocarcinoma.
　　Eight "magnifying glasses" relay to simulate the full-scale dark halo clear image of the universe.
　　An international research team led by the National Astronomical Observatory of the Chinese Academy of Sciences adopted a brand-new multiple amplification simulation technology, and obtained a clear image of the internal structure of the full-scale dark halo in the universe for the first time under the current standard cosmological model. The research results were published online in Nature on September 2nd. Dark halo is dark matter halo. It took the researchers five years, with the help of supercomputers, to obtain clear images of dark halos from earth-like mass to giant galaxy clusters, spanning 20 orders of magnitude. It is reported that in a typical area of the universe, this super-magnification simulation needs to be magnified by eight "magnifying glasses", and its magnification is equivalent to finding a flea on a picture of the surface of the moon. The super magnifying glass of computer simulation allows researchers to study the formation, evolution and internal structure of dark halos at different scales in detail. It is found that dark halos with different masses have very similar internal structures, that is, the center is dense and gradually sparse outward. These new findings will help scientists verify the hypothesis about the nature of dark matter-dark matter may not be "completely dark".
　　China’s first superconducting cyclotron was successfully developed.
　　On September 21st, the proton beam energy of superconducting cyclotron independently developed by China Institute of Atomic Energy reached 231MeV for the first time. This is the second time in the world to independently develop a compact superconducting cyclotron after the joint project of the United States and Germany. Researchers have successfully accelerated the continuous proton beam to this energy region, which indicates that China has fully mastered the core technology of miniaturization and high dose rate superconducting cyclotron and entered the international parallel ranks. The accelerator is small in size, low in power consumption and high in beam intensity, and can continuously accelerate 72 million proton beams per second. It is more suitable for fast intensity-modulated scanning therapy, breaking the monopoly of Europe and America in the field of miniaturized precision radiotherapy equipment, realizing the localization of superconducting cyclotron equipment in China, and is expected to greatly reduce the high treatment cost. The accelerator can also be directly used in the research and development of aerospace devices, core chips and integrated circuits, and promote the development of lightweight accelerators for aerospace particle beam applications, further opening up new fields of proton science research and application in China.
　　The third generation methanol to olefins technology passed the appraisal.
　　On November 9th, the third generation methanol to olefins (DMTO-III) technology passed the scientific and technological achievements appraisal organized by China Petroleum and Chemical Industry Federation. This technology is developed by Dalian Institute of Chemical Physics, Chinese Academy of Sciences, and has completely independent intellectual property rights. Compared with the current industrialized technology, the economy of DMTO-III technology has been significantly improved. Under the condition that the reactor size is basically unchanged, the olefin output has increased from 600,000 tons to 1.15 million tons per year. DMTO series technology has opened up a new route to produce low-carbon olefins from non-petroleum resources, initiated and led a strategic emerging industry of coal-to-olefin production, which is of great significance for realizing clean and efficient utilization of coal resources, alleviating the tight supply of petroleum resources, promoting the coordinated development of coal chemical industry and petrochemical industry, and ensuring China’s energy security.
　　(Originally published in the second edition of China Science Journal, 2021-01-21)

　　Xinhua News Agency, Harbin, May 2 (Reporter Wang Junbao) "Because my name is Ning Zhongyan" — — This is the name of Ning Zhongyan’s social media account. Who is Ning Zhongyan? Before 2019, this is a problem.

On February 19th, China’s Ning Zhongyan (first from the front) competed in the men’s team start semifinal of speed skating in the Beijing Winter Olympics. Xinhua News Agency reporter Wang Jianwei photo

　　Speed skating is an important competitive event in the Winter Olympics, but before the Beijing Winter Olympics, China athletes won only one gold medal in the speed skating event in the Winter Olympics. Ning Zhongyan, like this project, has not received much attention.

　　At the PyeongChang Winter Olympics four years ago, almost no one knew Ning Zhongyan’s name. The turning point took place in 2019.

　　In December 2019, the International Skating Federation Speed Skating World Cup was held in Nursultan, Kazakhstan, and Ning Zhongyan competed with a number of world experts. In the men’s 1500m race, he broke through the encirclement of the Dutch and won the gold medal.

　　The last time China won the gold medal in this event in the world competition was in 1963. 2: 09.2, Luo Zhihuan still remembers this achievement. On February 24th, 1963, in Nagano, Japan, he set a world record of 1500m at the 57th World Men’s Speed Skating Championships, and became the first China player to win the world championship in winter events.

　　Luo Zhihuan and Zhang Hong, the champion of the Winter Olympics, praised Ning Zhongyan’s achievements. "But when I came down from the podium, it was actually all zero." As a professional athlete, Ning Zhongyan knows the importance of continuous efforts.

On February 18th, China’s Ning Zhongyan finished the men’s 1000m speed skating final in Beijing Winter Olympics. Xinhua News Agency reporter Wang Jianwei photo

　　In 1999, Ning Zhongyan was born in Heping Village, Shiyan Town, Mudanjiang City, Heilongjiang Province, and studied at Heping Primary School in the village. Geng Yuhua, a school teacher, poured an ice rink in the school to enrich the children’s extracurricular life. Ning Zhongyan, 10, learned to fly on the ice for the first time.

　　He soon fell in love with the sport. "I remember that he would skate on ice, because he liked roller skates before he was six or seven years old, so I bought him a pair, and then he would skate." Ning Zhongyan’s mother Zhao Shuyan recalled.

　　"Later, Ning Zhongyan achieved good results in the skating competition in Ning ‘an City, and was introduced to Mudanjiang City by Ning ‘an Sports School." Zhao Shuyan still remembers the specific date of her son’s departure. "He was picked up by Mudanjiang Sports School on the eighth day of the first month. At first, he was led by coach Zhu Yuliang, and later he studied under coach Chen Peijun."

　　Chen Peijun, the speed skating coach of Mudanjiang Winter Sports Training Center, still remembers the first time he saw Ning Zhongyan. "At that time, it was 2012. He was short, but he had a good sense of ice." Chen Peijun said that Ning Zhongyan was not only savvy, but also trained very hard. "Don’t be lazy and obedient, don’t worry." Chen Peijun said.

　　Not only hard work, Ning Zhongyan understands that only by constantly overcoming difficulties can we reach the end. "At that time, I just participated in the World Cup, and my skates cut my legs. I got stitches at night, and I didn’t delay the game the next day." Zhao Shuyan said, "The child later said that it was very painful during the game, but he just gritted his teeth."

On February 19th, China’s Ning Zhongyan started the men’s speed skating team final at the Beijing Winter Olympics. Xinhua News Agency reporter Ang Lee photo

　　For many years as an athlete, Ning Zhongyan has been training hard and has hardly spent the New Year at home, but his achievements in the Beijing Winter Olympics are not satisfactory. "I was so nervous at the time, just like dreaming, my legs were out of control like wood, and I thought a lot in my head." Taking part in the Winter Olympics for the first time, Ning Zhongyan finally ranked seventh in the men’s 1500m speed skating competition in Beijing Winter Olympics.

　　"The Winter Olympics is like this. Some people are happy and some people are worried. Competitive sports are so cruel." Ning Zhongyan said that he has never given up, and will train hard, learn lessons and make up for his regrets at the next Winter Olympics.

　　"Give good luck some time, it won’t be too far away from me." Ning Zhongyan said.