If the industry is prosperous, all industries will prosper, and if the industry is strong, the economy will be strong. Looking back on the development of the western region and promoting the high-quality development of the western region, industry has always been an important foundation.

　　On the afternoon of April 23, General Secretary of the Supreme Leader presided over a symposium in Chongqing to promote the development of the western region in the new era and delivered an important speech, giving clear guidance for further forming a new pattern of great protection, great openness and high-quality development with six "persistences". Among them, "insisting on developing characteristic and advantageous industries as the main direction" is in the first place, which highlights the important significance of industrial development for promoting the development of the western region in the new era.

　　In-depth implementation of the spirit of the important speech of the Supreme Leader General Secretary, the western provinces have reached consensus, seized the opportunity, actively planned advantageous industries, and strived to open up a new chapter in the high-quality development of the western region.

　　Working hard on the word "special": planning industrial development based on resource advantages

　　At this symposium, the General Secretary of the Supreme Leader stressed: "We must persist in developing industries with distinctive advantages as the main direction, develop emerging industries according to local conditions, and accelerate industrial transformation and upgrading in the western region."

　　The vast area and rich natural conditions endow the western region with unique resource endowment and industrial development environment: the scenic resources in Gansu, Ningxia and Inner Mongolia provide the foundation for the development of new energy industry; Guizhou has many kinds of minerals and large reserves, and is accelerating the high-end development and utilization of mineral resources; The geographical features and ethnic cultures of Xinjiang, Qinghai and Tibet form a unique tourism resource … …

　People play in Tianshan Mingyue City, Shuimogou District, Urumqi, Xinjiang (photo taken on May 4, 2024). Xinhua News Agency reporter Hu Huhu photo

　　Whether it is to speed up the technological transformation of traditional industries, develop emerging industries according to local conditions, or lay out and build future industries, we should work hard on "characteristics" and strengthen our advantages with characteristics.

　This is a photovoltaic power station located in Hexi Town, Tongxin County, wuzhong, Ningxia, which was shot on September 16th, 2023. Xinhua News Agency reporter Yang Zhisen photo

　　Lingwu, Ningxia, a 2 million-kilowatt composite photovoltaic base in Ningdong, the country, has more than 3.7 million photovoltaic panels undulating along the vast barren beach, and "sparkling" in the hot afternoon sun, constantly transmitting green electricity to Zhejiang and other places.

　　Ningxia, with high altitude, strong sunshine and high radiation intensity, is one of the regions with the richest solar energy resources in China. As the first comprehensive demonstration area of new energy in China, Ningxia is speeding up the "chasing the wind and chasing the light". By the end of 2023, the installed capacity of new energy has exceeded 36 million kilowatts, and the per capita installed capacity of new energy has reached 5 kilowatts.

　Panorama of 3×5.98 MW floating distributed photovoltaic power generation project in Ningdong Power Plant of Ningxia Electric Power Company, National Energy Group (photo of drone, taken on June 17, 2022). Xinhua News Agency reporter Wang Peng photo

　　Mao Zhonggen, president of China Western Economic Research Institute of Southwestern University of Finance and Economics, said that developing industries with distinctive advantages in the western region will help to give play to regional comparative advantages, enhance industrial agglomeration and competitiveness, and enhance the economic competitiveness and sustainable development capacity of the western region.

　　In Xinzhai Village, Lujiang Town, Baoshan, Yunnan, relying on the subtropical climate and Baoshan small coffee, coffee and cultural tourism have met new sparks; In Yulin, Shaanxi, cutting-edge technology has helped coal realize "from black to white", and the traditional coal city has accelerated the transformation to modern coal chemical industry; In Liuzhou, Guangxi, the automobile industry accelerated the transformation and upgrading to new energy vehicles, and the sales of new energy vehicles increased by 160.7% in the first quarter & hellip; …

　Exhibitors from Baoshan, Yunnan Province participated in the 7th China — Coffee products were introduced to visitors at the South Asia Expo (photo taken on August 16, 2023). Xinhua News Agency reporter Chen Xinbo photo

　　Integrating superior resources and cultivating new formats, a number of characteristic industries in the western region have grown by the momentum, showing a strong momentum.

　　Tap the potential on the word "new": take innovation as the dominant industry to improve quality and efficiency

　　From agriculture, energy and raw material industries to today’s advanced manufacturing and modern service industries, since the implementation of the western development strategy, the western region has realized the transformation of the main industrial structure.

　In a new energy automobile battery manufacturer in Liuzhou, Guangxi, robots work on the production line (photo taken on May 10, 2023). Xinhua News Agency reporter Huang Xiaobang photo

　　"The industrial development in the western region has entered the stage of transformation and upgrading." Sheng Yi, a researcher at Sichuan Academy of Social Sciences, said that at present, the industrial development in the western region still faces many difficulties and challenges. The level of industrial structure is not high, and resource-intensive, labor-intensive and capital-intensive industries occupy a high proportion. The industrial innovation ability needs to be improved, the added value of products is low, and the problem of isomorphism is still outstanding.

　　The key to solving these difficulties is innovation.

　　At this symposium, the General Secretary of the Supreme Leader emphasized "strengthening the deep integration of scientific and technological innovation and industrial innovation" and made detailed arrangements for innovation: "promoting the upgrading, upgrading and efficiency improvement of traditional advantageous industries", "exploring and developing modern manufacturing industries and strategic emerging industries" and "laying out and building future industries" & HELIP; …

　　Empower technological transformation, promote equipment renewal, and accelerate the upgrading of traditional advantageous industries — —

　　Improving the quality and efficiency of traditional industries has brought new opportunities for the adjustment of industrial structure in the western region. Qinghai has accelerated the construction of a new power system with a gradually increasing proportion of new energy, and Shaanxi has promoted the extension of coal-based chemicals to new chemical materials … … A series of policy measures to strengthen muscles and bones have landed one after another.

　This is a photo of a photo-thermal power station (drone) taken in Delingha Photovoltaic (Photothermal) Industrial Park, Haixi Mongolian and Tibetan Autonomous Prefecture, Qinghai Province on April 23rd, 2024. Xinhua News Agency reporter Zhang Long photo

　　"To upgrade traditional industries, we must improve the efficiency of comprehensive utilization of resources and the degree of deep processing of products." Li Hengchao, deputy mayor of Liupanshui City, Guizhou Province, said that based on the rich local mineral resources, efforts will be made to do a good job in the article "Rich in Minerals and Fine Mining" to make the advantages better and stronger.

　　Overcome core technologies, make good use of innovative talents and promote the development of emerging industries — —

　　The first domestic self-developed F-class 50 MW heavy-duty gas turbine (G50) rolled off the production line in Sichuan. The advanced attosecond laser facility of Xi ‘an Institute of Optics and Mechanics, China Academy of Sciences passed the preliminary design review; Chongqing and other western regions should establish and improve the performance appraisal and incentive mechanism for talents, and give them long-term stable hard and soft support … …

　　Fill in the shortcomings of development and accelerate the application of innovation results; To break through the core technology, innovative talents should also be continuously cultivated. Relying on innovation and development, the western region has built nine national strategic emerging industrial clusters such as new materials and biomedicine, and five national advanced manufacturing clusters such as electronic information and aviation.

　Gao Qiaoli, a staff member, prepared a small sample of catalyst in the laboratory of process amplification platform of Zhongke Clean Energy Innovation Research Institute in Yulin, Shaanxi Province (photo taken on February 28, 2024). Xinhua News Agency reporter Zou Jingyi photo

　　Layout and construction of future industries, forming new kinetic energy for regional development — —

　　Not long ago, the 2024 Western Low-altitude Economic and Industrial Ecology Conference was held in Pengzhou, Sichuan. Pengzhou continues to explore the road of low-altitude economic development by creating a special flight airspace for drones, innovating drone food delivery services and promoting some application scenarios.

　　Future industry is the key "winner" to build a new engine of economic growth. Looking at the western land, from accelerating the cultivation of a new generation of electronic information technology to actively building a "number of valleys in the west", a new industry story facing the future is being written.

　　Making a fuss about the word "integration": optimizing the industrial spatial layout through cooperation

　　"Deepening the cooperation of scientific and technological innovation in the eastern, central and western regions" and "promoting the integrated development of central enterprises and the western region" … … At this symposium, General Secretary of the Supreme Leader gave guidance for the development of industrial cooperation in the western region.

　　It only takes 14 milliseconds! This is the transmission speed of data from Ningbo in the east to Guiyang in the west. Relying on the 400G all-optical inter-provincial backbone network, Guiyang can provide more efficient computing services for eastern cities, and the time delay between hubs is less than 20 milliseconds. This artery of "counting the east and calculating the west" is a microcosm of the new round of cooperation between the east and the west.

　The staff inspected the running status of the micro-module computer room in Gui ‘an Data Center of China Unicom (photo taken on May 23rd, 2023). Xinhua News Agency reporter Tao Liang photo

　　Sheng Yi believes that from the past "West-to-East Power Transmission" and "West-to-East Gas Transmission" to the present "East Counting and West Counting", the industrial division of labor between the western region and the eastern and central regions has formed a good situation of "you have me, I have you, division of labor and cooperation, and coordinated progress".

　　Not long ago, 2024 China industrial transfer and development docking activities were held in Sichuan, Guizhou, Ningxia and other places. Sichuan launched promotion around characteristic industries such as electronic information, equipment manufacturing, materials and chemical industry; In Guizhou, 298 projects signed involve deep processing of resources, new energy vehicles and other fields; Ningxia negotiated with more than 50 enterprises in the Yangtze River Delta, including digital information and modern chemical industry, based on its resource endowment and development status … …

　　Professor Che Wenhui from the Economics Teaching and Research Department of the Central Party School (National School of Administration) said that the western region should base itself on the industrial base and resource endowment, undertake the industrial transfer in the eastern region according to local conditions, focus on introducing industries with market prospects, and combine undertaking industrial transfer with adjusting its own industrial structure and establishing a modern industrial system to cultivate and develop new kinetic energy.

　　With the implementation of a series of measures, such as "supporting the youth through science and technology", "entering Yunnan through science and technology" and "supporting Ningxia through science and technology", the ability of independent innovation and the level of transfer and transformation of scientific and technological achievements in the western region have been significantly improved, and more and more enterprises have laid out key processes, production bases and R&D centers in the western region.

　　By the end of 2023, there were 27 national key laboratories and 3,197 major scientific and technological platforms in Sichuan and Chongqing. Ningxia organized and implemented more than 1,700 scientific and technological cooperation projects between the east and the west; Guizhou actively explores various modes such as "eastern enterprises+Guizhou resources" and "eastern R&D+Guizhou manufacturing" … … High-quality development momentum continues to be released in the western region.

　　Taking the development of new quality productivity as an important focus, guiding the orderly transfer of industries and optimizing the spatial layout of industries, the western region is accelerating the construction of a modern industrial system supported by advanced manufacturing industries.

　　Text reporters: Yan Fujing, Li Xiaoting, Pan Dexin, Chen Weiwei.

　　Editor: Chu Xinghua, Ren Zhenglai, Wu Jianlu, Wang Haocheng, Hu Bixia

　　Poster design: Pan Hongyu

　　Coordinator: Wang Jie and Cao Jiangtao

　　　　[XCAR New Car Review Original]

　　　　The three-day holiday on New Year’s Day has passed, and the pace of the Spring Festival is getting closer and closer. The editor here wishes all netizens a new atmosphere in the New Year, smooth work and happy families. With the arrival of the first working week in 2016, we started a brand-new journey in 2016. Similarly, for major car companies, this week officially ushered in a brand-new journey in 2016. In the previous article, we have introduced the new car plans of Honda, BMW, GM and Volkswagen in 2016. In today’s article, let’s take a look at what new cars Volkswagen’s Audi brand will launch in 2016.

　　　 Model: A new generation A4L made in China

　　　 Time to market: within 2016

　　　 New car comments: The biggest highlight of the domestic new generation Audi A4L is that it is equipped with brand-new headlights, and the details are optimized to make it younger and more dynamic. In addition, overseas models have also made great efforts to reduce the weight of the car body. Compared with the old models, the domestic models are expected to have a good performance in weight reduction. In terms of power, the overseas version is equipped with a re-adjusted 2.0T engine, and its performance has been improved. At present, the specific data of domestic models are still unclear.

　　　 Not long ago, the domestic media exposed a group of domestic new-generation Audi A4L real car drawings. From the appearance, the new car basically continued the design style of the overseas version of the new A4L. It is reported that the domestic new-generation A4L will be listed in 2016.

　　　　Judging from the actual car diagram of the new generation A4L made in China, the new car basically continues the design style of the overseas version of the new generation A4. The new car is equipped with a hexagonal air intake grille with more sharp edges and corners. The change of headlights is the biggest highlight of the front face. The brand-new internal light group makes it look more impactful. The overseas version adopts full LED headlights, and the domestic models are expected to be either high-profile or optional.

　　　 In terms of body size, the length, width and height of the overseas new generation A4 are 4726/1842/1427mm and the wheelbase is 2820mm respectively. It is certain that the domestic models will be lengthened, but the specific data is still unclear. At the tail, the new car basically continues the overseas version, equipped with LED strip taillights, but with the "FAW Audi" logo.

　　　　There is no real car map exposed in the interior, but we expect to continue overseas models as before, and will be equipped with a brand-new three-position flat-bottomed sports steering wheel. The center console is equipped with a large-size independent LCD screen, and it is still equipped with Audi MMI multimedia system, but it has been optimized to greatly improve the convenience of operation.

　　　　In terms of power, we can see the "45 TFSI" logo at the tail of the new generation Audi A4L made in China, which indicates that the new car is likely to be equipped with a 2.0T high-mobility engine. Of course, the domestic new generation Audi A4L will also launch a 2.0T low-power version of the engine, and the specific parameters are still unclear.

　　　 Model: domestic Audi new Q3

　　　 Time to market: Spring 2016

　　　 New car reviews:Audi Q3 has a large group of admirers in China, because in luxury brands, the car is cost-effective, and the new model has been adjusted in appearance and power. Let’s look forward to the new car coming to the domestic market as soon as possible.

　　　 Not long ago, the domestic media exposed a group of Audi Q3 spy photos. The appearance of the new car adopts the same design as overseas, and the power system of the current model will be used. It is reported that the new car is expected to be officially listed in the spring of 2016.

　 　 In terms of appearance, the front face of the redesigned Audi Q3 is designed with a horizontally striped air intake grille, and the edges of the hexagon are chrome-plated.Processing, three-dimensional sense is very strong. However, different from the overseas version, the modified Audi Q3 headlight shape of domestic road test continues the latest design of overseas version, but there are still some differences in configuration. The new car is not equipped with LED headlights, and the modified Audi Q3 also cancels the front fog lamp configuration.

　　　 In the rear part, the rear shape of the new car has not changed much from the current Q3, only the taillight group adopts a brand-new LED light source design. In terms of interior, the modified Q3 has little change from the current model, and the overall feeling is simple and generous. In terms of power, the new Q3 is equipped with a 1.4TFIS engine with a maximum power of 110kW, while the 2.0TFSI engine provides two power versions with a maximum power of 132kW and a maximum power of 162kW. In addition, the new car also offers two versions of the predecessor and four-wheel drive for consumers to choose from.

　　　 Model: New A6L made in China

　　　 Time to market: late January 2016

　　　 New car comments: Audi’s new A6L e-tron was launched at the 2015 Shanghai Auto Show, and the new car showed us some ideas of the new A6L. However, the new car will eventually be a mid-term redesigned model, and the appearance, interior and configuration will not surprise consumers too much.

　　　 Recently, according to relevant media reports, Audi’s new A6L will be officially launched in late January 2016. According to previous reports, the new car has added a 1.8TFSI displacement engine to replace the current 2.0T engine.

　 　 In terms of appearance, from the spy photos previously exposed, the front face of the car has not changed much from the current model, and the overall appearance adopts the overseas version of the model design. The new car redesigned the air intake grille, front bumper and bumper grille.

　 　 Viewed from the side, the length of the bottom of the rear door and the curvature of the roof of the car have been improved compared with the overseas standard wheelbase version. After that, the taillights have adopted a brand-new design. In addition, the exhaust pipe has changed from the round shape of the current model to a more sporty flat mouth shape.

　 　 In terms of power, the new car has added a 1.8TFSI engine, which will replace the current 2.0T engine with a maximum power of 140kW. According to previous news, the new car will also launch a high/low power version of the 3.0TFSI engine. In terms of transmission, the new car may follow the CVT gearbox, or it may completely replace the 8-speed automatic gearbox from ZF, and also provide four-wheel drive models.

With the continuous development of science and technology, automatic gearbox has been widely used in automobile industry. Among these automatic gearboxes, CVT (continuously variable transmission) and automatic transmission are the two most common ones. In this paper, CVT gearbox and AT gearbox will be compared and analyzed from the point of view of service life of 100 thousand kilometers, and their differences will be discussed.

CVT and AT Introduction CVT gearbox is a continuously variable automatic gearbox, and its structure is mainly composed of and. CVT is characterized by stepless speed change, smooth acceleration or deceleration, and improved driving comfort. However, due to its structural reasons, the torque bearing capacity of CVT gearbox is relatively low and the fuel consumption is relatively large.

AT gearbox is an automatic gearbox with step speed change, which is composed of hydraulic torque converter, and. AT gearbox is characterized by simple operation, good durability and high torque, so it performs better in power transmission. However, the fuel consumption of AT gearbox is relatively high, and the shift process is also slightly frustrated.

Analysis of service life From the service life of 100,000 kilometers, there are some differences between CVT gearbox and AT gearbox.
First of all, from the reliability point of view, CVT gearbox has a relatively low failure rate under the same mileage because of its simple structure. However, because of its complex structure, AT gearbox involves the cooperation of multiple parts, so its failure rate is relatively high under the same mileage.

Secondly, from the performance point of view, CVT gearbox, because of its stepless speed change, makes the vehicle more smooth during acceleration and deceleration, and improves the driving comfort. Although the AT gearbox is easy to operate, there is a sense of frustration in the shift process, which affects the driving comfort.

Details and cases The specific details and cases can better illustrate the performance of CVT and AT gearboxes in actual use. For example, when driving in the city, CVT gearbox makes drivers more relaxed and reduces fuel consumption because of its smooth acceleration and deceleration performance. On the other hand, when driving on the highway, AT gearbox shows its advantages of durability and bearing high torque, which makes the vehicle more stable when driving at high speed.

However, in some specific cases, the performance of CVT and AT gearboxes may change. For example, in the case of large torque, CVT gearbox may slip, which affects its transmission efficiency. In this case, AT gearbox shows better stability and transmission efficiency.

Conclusion Based on the above analysis, we can draw the following conclusions: 1. In the service life of 100 thousand kilometers, CVT gearbox has advantages in reliability and low failure rate; 2. CVT gearbox performs better in driving comfort, and the acceleration and deceleration process is smoother; 3. AT gearbox performs better in bearing high torque, and is suitable for high-speed driving or bearing heavy load; 4. Under different road conditions and driving demands, CVT and AT gearboxes have their own advantages, and the choice should be made according to the actual situation.

Therefore, when choosing an automatic gearbox, consumers should choose the type that suits them according to their actual needs and usage scenarios.

Where is the "heirloom" guilty of identification?

If you want to sell a collection, you can’t find a way?

Cultural relics lovers want to get dry goods knowledge?

People who eat melons want to watch a live broadcast of Jianbao?

Yangguang. com’s "Yichuang China Public Welfare Jianbao China Tour" is coming! The first stop will be held in the Museum of Beijing Quanlian Folk Cultural Relics and Art Chamber of Commerce. Welcome Tibetan friends to come and watch and participate!

"Yichuang China Charity Treasure Collection Tour in China" invites authoritative experts of different categories in antique shops to sit in town, hold appraisal knowledge explanation and charity treasure collection activities, bring the expert group to your side, collect treasures for you face to face for free, and provide a lively and bright media display platform for folk treasures.

The first stop of charity Jianbao China Tour: Beijing.

Treasure hunting time:Saturday, April 8, 2023, 9:30-16:30.

Treasure location:Museum of the All-China Federation of Folk Cultural Relics and Arts Chamber of Commerce (navigation can be directly searched: A28, the bottom of the North Gate of Dongyuan, Shanshui Wenyuan, Chaoyang District, Beijing)

Treasure category:Bronze, jade, porcelain, calligraphy and painting, miscellaneous.

If it is identified as genuine and meets the requirements of filming, you can negotiate and sign a free filming service contract on the spot.

Appraisal expert group:

Travel tips

Beijing local Tibetan friends route:

Subway: Get off at Exit A of Shilihe Station on Metro Line 10, walk 290 meters, take bus No.680 at Shilihe Bridge North Station and get off at Hongyan Bridge West Station.

Bus: get off at Hongyan Bridge West Station (No.29, No.98, No.440, No.680).

Route of Tibetan friends in other places:

(The following is the recommended route, and Tibetan friends can choose according to the actual situation.)

Get off at Beijing South Railway Station

Get off at Beijing West Railway Station

Get off at Beijing station

Arrival route of Beijing Capital Airport

Arrival route of Daxing International Airport

Public welfare treasure answering questions:

Q: When will this treasure inspection be held?

A: April 8, 2023 (Saturday) 9:30-16:30.

Q: Where is the identification?

A: The treasure of Beijing Railway Station was held in the "All-China Folk Cultural Relics and Art Chamber of Commerce Museum" in Chaoyang District, Beijing. You can search directly in the navigation software, or refer to this address "A28, the bottom merchant of the north gate of the East Garden of Shanshui Wenyuan, Chaoyang District, Beijing".

Q: Do I need to make an appointment for this treasure?

A: You don’t need to make an appointment for this event. You can bring your collection to the site on the day of the event and identify it in order.

Q: What is the charging standard for this treasure?

A: There is no charge. If your collection is genuine and you are interested in auction, we can provide you with free auction service, and the specific operating rules can be agreed after negotiation according to the collection and the wishes of both parties on the same day.

Q: What should I do if I want to sell my collection?

A: If your collection is genuine and you are interested in auctioning, we can provide you with free auction service. The specific operation details can be agreed after negotiation according to the collection and the wishes of both parties on the same day.

Q: Can you issue relevant certificates for the collection?

A: Jianbao site will not provide you with relevant certification certificates.

Yichuang China is the first-class channel of the central key news website Yangguang. com. With National Cultural Heritage Administration, Beijing State-owned Cultural Assets Management Center and All-China Folk Cultural Relics and Art Chamber of Commerce, the channel integrates the superior resources of the social cultural relics collection industry, focuses on the vertical field of cultural collection, integrates the appraisal and appreciation of cultural relics and related cultural and creative products, knowledge courses, trading and art market observation, and solves the two major pain points of "fidelity" and "trading policy" in the current cultural relics and art auction industry based on professional and strict appraisal services, so as to create an authoritative cultural relics and art appraisal in China.

Solemnly declare:

All activities related to public treasure collection, knowledge lectures, free filming, etc. carried out by the official website of Yichuang China Public Treasure Collection in China are subject to the notice and contents issued by the official account of Yichuang China Public Treasure Collection in China.

Pay attention to Yichuang China WeChat WeChat official account, and keep abreast of information related to public treasure.

　　guide reading

　　Do you know that?/You know what? Using WeChat, Alipay and other applications to scan the code payment will officially usher in the quota limit! Recently, there is a saying on the Internet that WeChat can withdraw cash for free. Is it true?

　　Attention! The central bank will take the shot and scan the code to pay the limit!

　　According to the notice of the central bank, from this yearApril 1st.Start, useWechat, AlipayThe application of scanning code payment will officially usher in the limit.

　　1. Static barcode payment: the limit is 500 yuan.

　　Our common roadside stalls, food markets, grocery stores, etc. posted on the wall or printed QR codes belong to static barcodes.

　　Because it is easy to be tampered with and carry Trojans or viruses, the payment risk is the highest and the risk prevention level is the lowest, which is D-level. No matter what transaction verification method is used, the cumulative transaction amount of a single bank account or all payment accounts and express payment of the same customer shall not exceed that of 500 yuan.

　　2. Dynamic code scanning payment: the limit is divided into three levels.

　　When we pay for things after shopping, it is a dynamic bar code to show the payment code for the cashier to scan.

　　For payment with dynamic bar code, the risk prevention ability can be divided into three levels according to different transaction verification methods: A, B and C, and the cumulative transaction limit of the same customer per day is self-agreed, 5,000 yuan and 1000 yuan respectively.

　　Self-agreed quota:

　　The limit of 5000 yuan:

　　Limit 1000 yuan’s:

　　Kang Lin, deputy secretary-general of the China Payment and Clearing Association, said that Alipay and WeChat, which we use every day, generally use more than two elements, such as fingerprints and passwords, and the daily limit is 5,000 yuan.

　　The details are as follows:

　　What if the consumption exceeds that of 500 yuan?

　　Impact of quota on consumers:

　　Many people will ask whether after the implementation of the new regulations, payment by WeChat or Alipay can only cost 500 yuan every day. Actually, that’s not the case.

　　For example, if you eat a big meal in 600 yuan in a restaurant, it will be difficult to scan the static barcode for payment. At this time, the cashier can scan the dynamic barcode generated on the consumer’s mobile phone, which is safer.

　　Impact of quota on stores:

　　After the implementation of the new regulations, it may have some impact on small businesses on the street. For example, for the boss who sells pancakes, after the daily income exceeds that of 500 yuan, he needs to scan the code of each customer separately, which will bring some inconvenience if he meets an office worker who is in a hurry.

　　In addition, if the daily income exceeds that of 500 yuan, these stores need to prepare their own equipment such as scanners, which may add some pressure to small businesses.

　　Can wechat cash withdrawal be free? The truth is, …

　　In addition to the limit of scanning code payment, the handling fee for WeChat cash withdrawal has also received attention recently.

　　Nowadays, many people are used to transferring money and paying back money to WeChat or Alipay accounts, but there is a certain percentage of handling fee for withdrawing money. Recently, there is a saying on the Internet that WeChat can withdraw cash for free. Is it true?

　　Wechat has a free cash withdrawal trick: official receipt code.

　　According to Tencent’s customer service information, as of December 31, 2018, merchants use the "official collection code" to collect money, which can accumulate the free withdrawal amount.

　　It is reported that the official receipt code of WeChat payment is a professional receipt code tool provided by WeChat payment for QR code collection users. The maximum daily limit is 10,000 yuan, and the maximum single withdrawal is 500 yuan.

　　Note that this is a professional collection code tool for QR code collection users, not all users!　　

　　How to apply for an official receipt code?

　　If Tencent opens the entrance for you, click "Apply for official receipt code" in the red box in the first picture below.

　　Choose a style and apply for an order of 0.01 yuan.

　　It should be noted that the official receipt code is not open to all users. This code is open to small businesses, that is to say, WeChat will be based on — — Your ordinary collection QR code, the number of days, the number of transactions and the amount, consider whether to give you the qualification of "official collection code".　

　　Recently, there is a saying circulating on the Internet that some measures can be adopted to allow ordinary individuals to enjoy this kind of treatment that was originally only for small businesses. However, Tencent professionals said that these so-called methods are not credible, so don’t be fooled!

　　Is it reliable to realize free cash withdrawal from credit card overpayment?

　　There is also a saying circulating on the Internet that credit card overpayment transfer method can be used to avoid the withdrawal fee. For example, your credit card owes a total of 2,500 yuan, and you repay 3,000 yuan in it, so the extra 500 yuan is overpaid, and for most banks, there is no handling fee for overpaying cash withdrawal.

　　However, with this method, the most important thing is that you have a free credit card for overpayment. One thing to note here is that not all bank credit cards can withdraw the overpayment for free.

　　Financial experts remind that although the clever use of "overpayment" can save a certain handling fee, the cardholder needs to determine the number of "overpayment" in his card. If it is "overdraft cash withdrawal", it is possible to pay the handling fee and pay an interest.

　　In addition, banks also have certain restrictions on the amount of free cash withdrawal for credit card overpayments. I suggest you call the customer service of your bank first, and ask clearly before withdrawing cash.

　　Everyone must pay attention! Tell your relatives and friends!

Jolin Tsai takes the stage

　　Jolin Tsai attended the catwalk for international boutiques yesterday (17th). Dressed in a cute red dress, Jolin Tsai’s movements yesterday seemed very stiff, and her physical performance was not much. Jolin Tsai said that because yesterday’s clothing was flat, there was no way to move too much. Jolin Tsai recently celebrated her birthday in a low-key manner. In the past, she would invite "Cai Gang" good friends to celebrate her birthday, but this year it was particularly low-key. Jolin Tsai said that recently because of the scandal, paparazzi surrounded her door every day, so she did not dare to go out this year’s birthday and chose to spend it at home with her family and friends. This year, she was very happy to hear that Jolin Tsai received a limited edition of kitty cats from her friends. Is the kitty cat a thoughtful gift from her gossip boyfriend Peng Yuyan? Jolin Tsai was only happy to share the birthday gift with everyone. As for whose intention it was, Jolin Tsai did not reveal much. Last night was the wedding day of her friend Nanquan’s mother, Warhead, and Warhead had already sent a red bomb to Jolin Tsai. It was rumored that Jolin Tsai did not go to the banquet because he did not want to meet Jay Chou. Jolin Tsai clarified that he could not go to the wedding banquet because Jay Chou was present, but because he really had to record for the new album in the studio that night. Although there was no way to be there in person, Jolin Tsai still specially recorded a congratulatory VCR for Warhead, and hoped that Warhead would be obedient to his wife and stay away from the scandal after his marriage. It seemed that he was warning Warhead not to follow in the footsteps of the boss Jay Chou who Jolin Tsai, who was severely allergic due to low resistance before, is now in a state of concern. Jolin Tsai said that he still continues to take immune-enhancing and anti-allergic drugs, and the rumored allergen dog has rarely been close recently. However, Jolin Tsai, who will be a trapeze to work in other places, actually hopes to return to his hometown and love dogs before going abroad for work.

Editor in charge: Sun Jie

Illustration, Cartography/Pan Fan

　　Win the battle of epidemic prevention and control

　　Yesterday afternoon, the 140th press conference on COVID-19 epidemic prevention and control work in Beijing was held. Beijing Youth Daily reporter learned from the scene that from 0:00 to 24:00 on July 2, there were 2 new confirmed cases of COVID-19 in the city. The Municipal Center for Disease Control and Prevention reported the relevant information of the case. At the same time, it also released the relevant situation of Xie Moumou, a woman with a positive nucleic acid test in Wanda Plaza in Shijingshan District on July 2. The woman was diagnosed as asymptomatic infected and has been admitted to Ditan Hospital. According to the Shijingshan District Government, Wanda Plaza has been temporarily closed, and the test results of 185 external environmental samples were all negative. Wanda Plaza carries out comprehensive disinfection and sterilization and environmental testing, and all merchants conduct nucleic acid testing.

　　Xie Moumou during home quarantine

　　Repeatedly destroy the door magnetic alarm and go out

　　Zuo Xiaobing, deputy head of Shijingshan District, informed that the Shijingshan District CDC received a report around 13:30 on July 2 that a novel coronavirus nucleic acid test positive customer was active in the Wanda Plaza in Shijingshan District. After receiving the report, Shijingshan immediately launched an epidemic prevention emergency response plan. The District Health Commission and the District CDC, together with the Public Security Bureau, rushed to the Wanda Plaza for epidemic prevention and control and investigation and handling as soon as possible.

　　At yesterday’s press conference, Pang Xinghuo, deputy director of the Municipal Center for Disease Control and Prevention, informed the woman’s circulation information. The woman is Xie Moumou, 24 years old, and is an asymptomatic infected person. Xie Moumou went to the Xinfadi Market checkpoint for a short time on June 14. In the early morning of June 16, he went to Fengtai Maternal and Child Health Hospital due to a threatened abortion. After diagnosis and treatment on the same day, he continued to isolate at home. During the home isolation period, he broke the door magnetic alarm many times and went out. From the end of June to the beginning of July, the woman’s three nucleic acid test results were negative. At 10:00 on July 1, she went to the China-Japan Friendship Hospital for another nucleic acid test. On July 2, he went shopping at Shijingshan Wanda Plaza. At 12:00, he received a phone call from the China-Japan Friendship Hospital that the nucleic acid test result was positive. Xie Moumou has been transferred to Ditan Hospital. As of 14:00 on July 3, 204 close contacts have been traced and quarantined for medical observation. Other contacts are under further investigation and verification.

　　Shijingshan Wanda Plaza is temporarily closed

　　All merchants conduct nucleic acid testing

　　In response to the above situation, Shijingshan District arranged a negative pressure ambulance to send Xie Moumou, an asymptomatic infected person, to the hospital’s fever clinic for isolation and investigation as soon as possible, organized professional departments to carry out flow transfer work, and sent Xie Moumou to Ditan Hospital for isolation treatment that night. At the same time, the epidemiological investigation of Xie Moumou’s activity track in Wanda Plaza was carried out quickly, and the 47 close contacts initially determined were sent to the centralized isolation medical observation point for centralized isolation management, and further touch-up was carried out. Health monitoring of general contacts; timely nucleic acid testing of close contacts was carried out, and the results were negative; 185 environmental samples outside Wanda Plaza were collected, and the test results were all negative.

　　According to the requirements of epidemic prevention, Shijingshan District immediately temporarily closed Wanda Plaza, and carried out orderly evacuation after information registration for on-site customers. The district disease control department carried out comprehensive disinfection and sterilization and environmental testing on Wanda Plaza overnight according to the epidemic prevention guidelines, and arranged for nucleic acid testing for all merchants in Wanda Plaza. After passing the professional assessment, it will resume opening to the outside world as soon as possible.

　　Withholding crucial information

　　And responsible for the spread of the epidemic

　　Yesterday, Xu Hejian, deputy head of the propaganda department of the Beijing Municipal Party Committee, said that the city has kept the number of new reported cases in single digits for five consecutive days, and the number of cured and discharged patients is increasing. Pang Xinghuo informed the press conference of two patients diagnosed on July 2, both living in Fengtai District. One of them is a 56-year-old female patient who has retired. On June 3, he went to the basement floor of the beef and mutton hall of Xinfadi Market to purchase items. On the 16th, he was identified as a close contact of the confirmed case. On the 29th, he developed symptoms such as fever and abdominal distension. He was diagnosed on July 2 and the clinical classification was ordinary. The other patient is a 32-year-old female who is an online store operator.

　　Pang Xinghuo once again reminded centralized or home quarantined personnel to strictly abide by the isolation requirements, prohibit going out, and prohibit participating in cross-room, cross-family, and cross-yard gathering activities. Any discomfort must be reported in a timely manner, and medical treatment should be standardized. Personnel with certain risks should do a good job of personal closed-loop management when the nucleic acid test results are not available, and do not contact or contact others as little as possible. Anyone who is under epidemiological investigation must truthfully report their itinerary and contacts, fulfill their responsibilities for citizen epidemic prevention in accordance with the law, and conceal key information and lead to the spread of infectious diseases and other consequences shall bear legal responsibility. Text/Our reporter, Jiang Ruojing, Li Zewei

　　focus

　　From now on, people from low-risk areas do not need nucleic acid test certificates to leave Beijing

　　At yesterday’s press conference, Pan Xuhong, deputy director and spokesperson of the Beijing Municipal Public Security Bureau, introduced that from 0:00 on July 4, people from low-risk areas in the city will no longer be required to hold a negative nucleic acid test certificate.

　　Pan Xuhong introduced that after the clustering epidemic occurred in the Xinfadi wholesale market, in order to prevent the epidemic from spreading outside Beijing, Beijing has comprehensively strengthened the control of leaving Beijing, strictly prohibiting "four types of personnel", personnel involved in the epidemic risk in the Xinfadi market, and personnel in medium and high-risk areas from leaving Beijing. For other personnel, it is recommended to "not leave Beijing if it is unnecessary". If it is really necessary to leave Beijing, it is required to hold a negative nucleic acid test certificate within 7 days, and further refine the monitoring and early warning, information notification, restrictions on ticket purchases and exit from Beijing.

　　At present, the epidemic situation in Beijing is generally stable and improving. Judging from the trend of new cases, the daily new cases have gradually declined from the peak of 36 cases, and have dropped to single digits after June 28, especially in the past three days, the new cases have not exceeded 3 cases, and continue to be at a low level. From the perspective of regional distribution of cases, the medium and high-risk towns involved are all clearly related to the clustering epidemic in Xinfadi, and have not formed a social spread. From the perspective of screening and testing, the vast majority of the positive test results belong to the key groups included in the scope of control, and only a very small number are screened out on a large scale in society. From the perspective of risk personnel control, on the basis of 14 days of medical observation in the early stage, the isolation observation of epidemic-related risk personnel has been extended or lifted, and the risk factor has been greatly reduced.

　　Pan Xuhong said that from the current point of view, by taking extraordinary measures such as nucleic acid testing "should be checked and checked" and risk personnel "should be isolated", the city has effectively blocked the epidemic transmission channel, and the epidemic risk is always under control. Comprehensive prevention and control risks, resumption of work and production and mass travel needs and other factors, on the basis of continuing to maintain strict control of personnel in medium and high-risk areas, the city has decided that from 0:00 on July 4, personnel from low-risk areas in the city will no longer be required to hold negative certificates for nucleic acid tests.

　　The city has completed a total of more than 10 million nucleic acid test samples

　　At yesterday’s press conference, Zhang Qiang, deputy head of the quarantine testing working group of the Beijing COVID-19 epidemic prevention and control leading group and deputy director of the organization department of the Beijing Municipal Party Committee, briefed on the work of nucleic acid testing in Beijing. As of 24:00 on July 2, the city has completed sampling 10.414 million people and 10.059 million people have completed testing. At present, there are 331 confirmed cases in the city, of which 172 cases are found by nucleic acid screening, accounting for 52%.

　　Zhang Qiang introduced that after the clustering epidemic occurred in Xinfadi market, as of 24:00 on July 2, the city has completed sampling 10.414 million people and completed testing 10.059 million people. At present, there are 331 confirmed cases in the city, of which 172 cases were found by nucleic acid screening, accounting for 52%. Nucleic acid testing has played an important role in quickly discovering and controlling the source of infection, effectively blocking the transmission chain and preventing the spread of the epidemic.

　　As of June 16, the city quickly focused on the detection of all high-risk personnel. As of June 16, the sampling and testing of the epidemic-related market staff in Xinfadi, Fengtai District and Yuquan East, Haidian District, the surrounding community residents, the big data investigation of Xinfadi market personnel and related personnel, and the community "knock on the door" actively reported that there was a history of contact. A total of 578,000 people were tested.

　　Zhang Qiang introduced that the city efficiently organizes social nucleic acid screening. As of June 28, the first-line staff of catering, supermarkets, express delivery, takeaway, social welfare institutions, medical and health institutions, community prevention and control, bank counter personnel, transportation, beauty salon and other industry personnel, as well as the sampling and testing tasks identified as the permanent population of medium and high-risk streets, towns and key regions, a total of 7.494 million people were tested. From June 28, the second stage was entered, and the dynamic clearing of "should be checked and checked" was promoted. "willing to check and check" was launched simultaneously, and a total of 1.988 million people were tested.

　　The city has comprehensively improved the ability to guarantee nucleic acid testing. The number of testing institutions in the city has increased from 75 to the current 175. Zhang Qiang introduced that the daily inspection and measurement has been raised from 40,000 in the early stage of this clustering epidemic and stabilized at more than 458,000, and the maximum inspection and measurement in a single day is 1.084 million people. In addition, the city has strengthened the ability to guarantee nucleic acid test materials. The inventory of pharyngeal swab collectors has increased from 431,000 to 2.285 million, and the inventory of nucleic acid kits has increased from 891,000 to 2.215 million. The daily average number of testing places is set up 443, the sampling points are 2224, and 7589 sampling healthcare workers are mobilized. The maximum sampling volume in a single day is 1.212 million people.

　　The dangerous waste products at the stall where the epidemic point appeared in the Xinfadi market have been cleared and shipped.

　　The Xinfadi Market was closed on June 13. How is the disposal and disinfection of hazardous waste? At the press conference yesterday afternoon, Zhou Xinchun, a member of the Standing Committee of Fengtai District Committee and executive deputy head of the District Government, introduced that the negative floor and first floor of the beef and mutton complex building in the epidemic area of Xinfadi Market, as well as the stalls with epidemic points such as the live fish area, have completed the removal of hazardous waste. Garbage removal in other areas such as fruits and vegetables has also entered the final stage.

　　Zhou Xinchun introduced that the Xinfadi wholesale market has formulated a scientific disinfection plan. More than 300 professional disinfection personnel from 6 professional disinfection teams were mobilized on site to conduct comprehensive and thorough disinfection of 960,000 square meters of open-air and indoor trading areas and rainwater pipelines in the sealed control area. The cumulative disinfection and sterilization area is 14.12 million square meters.

　　Zhou Xinchun introduced that the clearance and transportation of dangerous waste has been basically completed. The negative floor and first floor cold storage of the beef and mutton complex in the epidemic area, as well as the stalls with epidemic points such as the live fish area, have all completed the clearance and transportation of dangerous waste. Garbage clearance and transportation in other areas such as fruits and vegetables have also entered the final stage. As of July 3, a total of 782.74 tons of meat, aquatic products, soy products and other hazardous waste items in the Xinjindi market have been cleared and transported; more than 16,000 tons of fruits and vegetables have been cleared. This group of writers/reporters, Jiang Ruojing, Li Zewei

　　case

　　The police reported four typical cases involving violating quarantine regulations and going out

　　At yesterday’s press conference, Pan Xuhong, deputy director and spokesperson of the Beijing Municipal Public Security Bureau, reported four typical cases involving concealing the history of market activities in Xinfadi, violating the regulations on concentration and home isolation, and even illegally practicing medicine, which caused the risk of epidemic spread.

　　Case 1: Li Mouxing (male, 61 years old) went shopping at Xinfadi Market on June 3, and then came into close contact with his wife Tongmou (60 years old), daughter Li Mouxing (34 years old), and granddaughter Bai Mouyu (4 years old). On the 14th, Li Mouxing was diagnosed with a COVID-19 case. During the circulation investigation, Li Mouxing, Tong and Li three people did not truthfully provide that Bai Mouyu had been in close contact with confirmed personnel, which caused the risk of epidemic transmission. At present, the police have opened an investigation against the relevant personnel who deliberately concealed the close contact.

　　Case 2: Wang Mouyin (male, 25 years old) is a deliveryman at Xinfadi Market. After receiving the nucleic acid test and home quarantine notice at the temporary residence on June 13, the person did not accept the test as required, and went out to work during the home quarantine period. Later, the person was diagnosed with a COVID-19 case on June 27. At present, the police have opened an investigation into Wang Mouyin’s failure to accept nucleic acid tests as required and violate the home quarantine regulations.

　　Case 3: Xie Mouming (male, 38 years old) has gone to Xinfadi Market for shopping three times since June. On June 23, the person was diagnosed with a COVID-19 case. After investigation, Xie Mouming deliberately concealed the history of Xinfadi market activities twice in the circulation. Although he signed a home quarantine commitment, he still went to public places many times. At present, the police have launched an investigation into Xie Mouming’s concealment of Xinfadi market activities history and violation of quarantine regulations.

　　Case 4: He Moucai (male, 51 years old) and Zhang Mouying (female, 53 years old) are husband and wife. Since the end of May, the two have received two patients with cough and fever symptoms in their temporary residence without obtaining the qualification of a doctor, and have not reported them to the disease control department. One of the patients was diagnosed with COVID-19 in Beijing, and the other patient was diagnosed after returning to his place of origin, which caused many infections. The police seized a large number of medicines, syringes and other medical supplies in the temporary residence of He Moucai and Zhang Mouying. Now the two are under investigation on suspicion of illegal medical practice. Text/Reporter, Jiang Ruojing, Li Zewei

　　At 8:07 p.m. on August 2, Mr. Liu, an outsider, called a Didi Express on Yuhu Road in Yubei to Jiangbei Airport. The driver of Didi took a detour of 30.45 kilometers from the original 2.3 kilometers. This "bizarre mistake" delayed a series of trips and caused him a series of troubles.

　　Yesterday, the reporter learned from the traffic law enforcement department that there is a preliminary solution to this matter, and Didi is willing to compensate Mr. Liu for his airfare and the accommodation expenses caused by the delay.

　　2.3 kilometers of road around 30.45 kilometers

　　"This place, I took a new taxi later, and it was only a distance from the starting price." Mr. Liu said his departure point was at the entrance of Yuhu Road Health School in Yubei District, and his destination was Jiangbei Airport. The map shows that it is only 2.3 kilometers away.

　　At 8:07 PM on August 2, Mr. Liu boarded the Didi Express to Jiangbei Airport and was ready to board the plane that took off at 9:20 PM that night.

　　"He followed the map, and as soon as he set off, he went in the opposite direction," Mr. Liu said. He looked at the navigation at the time and felt that it was wrong, and he alerted the driver, who also accepted the suggestion.

　　But what puzzled Mr. Liu was that the driver made a mistake several times when he turned around and ended up on the highway.

　　"You can’t drop off passengers on the highway, so I had to let him continue walking." It wasn’t until 8:57 that the driver arrived at Jiangbei Airport. At this time, the plane that took off at 9:20 was no longer allowed to board, and Mr. Liu’s trip was in vain.

　　The evidence provided by Mr. Liu showed that the original 2.3-kilometer journey was driven by the driver in a super "U" shape, the journey became 30.45 kilometers, and the cost also changed from 9 yuan to 77.24 yuan.

　　The itinerary was ruined, causing a series of troubles

　　Mr. Liu’s trip was to Shanghai for medical treatment. Mr. Liu delayed medical treatment due to a missed flight due to a detour.

　　"The expert number of the appointment was not seen, and the enteroscopy appointment was also soaked in soup." Mr. Liu was very angry and immediately called the Didi customer service center to complain. "After negotiating with the other party for three hours, the solution given cannot be approved by me," Mr. Liu said.

　　Mr. Liu believes that the accommodation fee incurred by his trip (on the evening of August 2) and the airfare for the next day should be paid by Didi. In addition, Didi should also compensate for the cost and time delayed by not being able to see a doctor.

　　At that time, Didi promised free fares, and other compensation was far lower than the standard proposed by Mr. Liu. The two sides did not reach a solution, and Mr. Liu was ready to take judicial channels to resolve.

　　Didi sent a commissioner to handle the matter

　　"The trip you mentioned is indeed very abnormal." On the afternoon of August 9, a reporter from Chongqing Morning News contacted Didi’s customer service staff. After verification, the other party told the reporter that the driver did take a detour.

　　"Judging from the order volume, this driver has received more than 100 orders, and he is considered half an’old driver ‘. How could he make such a low-level mistake!" Didi was also puzzled by this.

　　"We have referred the matter to the commissioner for detailed investigation." A person in charge of the customer service department said that the investigation and evidence collection will take some time, and the actual investigation of the commissioner shall prevail.

　　The fare of 77.24 yuan incurred after the "detour" has not been paid due to the abnormal itinerary.

　　Mr. Liu said that he has submitted the relevant situation and evidence to the industry authorities and is waiting for a final solution.

　　Latest progress: Didi is willing to compensate 1,000 yuan

　　Yesterday, the latest development of the incident. Didi said that Mr. Liu’s travel expenses were free of charge, and Mr. Liu’s air ticket and accommodation expenses were compensated for a total of 1,000 yuan, and another 100 yuan coupon was given.

　　Yesterday, Mr. Liu told reporters that Didi had called him to inform him of the latest compensation plan. "As long as I agree, the compensation will be sent to my account within half a month." Mr. Liu said he was still seriously considering the plan.

　　■ Sound

　　Law enforcement: has been involved in the investigation

　　"We are also paying attention to this matter and have intervened in the investigation." The relevant person in charge of the detachment directly under the Chongqing Municipal Traffic Administrative Law Enforcement Corps said that they learned about the matter through the complaints of the parties and the reports of the upstream news, and have sent law enforcement officers to investigate the matter.

　　At present, law enforcement officials have contacted Didi and Mr. Liu and are conducting further investigations.

　　"If citizens encounter problems in taxis, online car-hailing, or buses, they can call (023) 96096 to complain, and the traffic law enforcement will investigate." The person in charge reminded that citizens’ complaints and inquiries will be replied quickly to help everyone solve the problem.

　　Lawyer: Claims can be made according to law

　　"Mr. Liu has formed a contractual relationship with Didi, and Didi is obliged to deliver Mr. Liu to the destination (Jiangbei Airport) as agreed. The carrier should bear the loss compensation for the loss caused to the passenger due to the fault of Didi (the carrier)." Tan Lu, director of Chongqing Liaolan Law Firm, believes that the evidence shows that Didi should bear the corresponding responsibility.

　　Tan Lu introduced that Article 112 of the Contract Law stipulates that if a party fails to perform its contractual obligations or performs its contractual obligations not in accordance with the agreement, if the other party has other losses after performing its obligations or taking remedial measures, it shall compensate for the losses.

　　At the same time, Article 113 of the Contract Law provides that if one party fails to perform its contractual obligations or the performance of its contractual obligations does not conform to the agreement, causing losses to the other party, the amount of compensation for losses shall be equivalent to the losses caused by the breach of contract, including the benefits that can be obtained after the performance of the contract, but shall not exceed the possible losses caused by the breach of contract that the party in breach of the contract foresaw or should have foreseen when entering into the contract.

　　"If Mr. Liu wants to get compensation other than airfare and accommodation (compensation for expert numbers and medical expenses), he still needs to do some preparatory work." Tan Lu said that if Mr. Liu is not satisfied with the current solution, he can also complain to the industry authority.

　　Our reporter, Zhang Xu, intern, He Pengcheng

　　Among the vast stars, there are many stars with names, and the person who first discovered this star has the right to name it. In space, there is a star called "China Star", and its discoverer is a China — — Yuzhe Zhang. He was also the first director of the Purple Mountain Observatory after the founding of New China. Next, let’s meet this person from idolize.

　　In the middle of the night, the sky above the Xuyi Observatory of Purple Mountain Observatory is dotted with stars, which is the prime time for the NEO exploration and solar system celestial research team to carry out observation activities. Above the main control room, the largest NEO telescope in China is erected. Since the beginning of this year, the research team has discovered five asteroids and one comet with this "big eye", setting the best record in recent years.

　　Zhao Haibin, chief researcher of the Near-Earth Object Detection and Solar System Objects Research Group of Purple Mountain Observatory of China Academy of Sciences, said: "The name of this star we are seeing now is ‘ China Star ’ . Its international number is 3789. Actually, this ‘ China Star ’ We have often observed it recently. From August 2022 to January 2023, we observed this star 13 times. "

　　This "China Star" actually has another name. Yuzhe Zhang, who was studying in the United States in 1928, discovered this asteroid and named it "China Star". From "China Star" to "China Star", the change of the word difference is behind the tortuous experience of the development of modern astronomy in China.

　　In 1929, at the age of 27, Yuzhe Zhang completed his doctoral degree and returned to the Department of Physics of Central University to teach. At the same time, he served as a special researcher at the Institute of Astronomy of Academia Sinica. At that time, because there was no large astronomical telescope in China to track and observe, the "China Star" numbered 1125 was "missing" for a long time and lost its trace. In 1934, the Purple Mountain Observatory, which Yuzhe Zhang participated in the preparation, was finally completed. But before long, War of Resistance against Japanese Aggression broke out, and Yuzhe Zhang moved westward to Kunming with the Observatory. No matter how difficult the wartime conditions were, he did not give up astronomical research.

　　Wang Kechao, director of science popularization department of Purple Mountain Observatory of China Academy of Sciences, said: "On September 21st, 1941, there was a total solar eclipse in China. At that time, it was extremely difficult conditions in War of Resistance against Japanese Aggression. Yuzhe Zhang led a team to overcome all kinds of difficulties, set off from Kunming, Yunnan, and traveled 3000 kilometers to Lintao, Gansu, to make scientific observations on the total solar eclipse and successfully filmed a large number of precious total solar eclipse films. This is the first total solar eclipse photo taken by China people for the first time in their own country. "

　　After War of Resistance against Japanese Aggression, Yuzhe Zhang went to the United States again with the mission of learning the latest astronomical technology to prepare for the reconstruction of the Purple Mountain Observatory. After further study, Yuzhe Zhang declined to be retained by some astronomical institutions in the United States and resolutely returned to the motherland. He was appointed as the first director of the Purple Mountain Observatory after the founding of New China, and in the following 40 years, he created and led the observation and research work of planets, asteroids, comets and artificial satellites in China.

　　Wang Kechao said: "This reflective telescope with a diameter of 60 cm was the largest telescope in the Far East at that time. After returning to China, Mr Yuzhe Zhang repaired the telescope himself. It was next to this telescope that he led the young team through sleepless nights, discovering more than 100 new asteroids and 3 purple mountain comets. They have all obtained international permanent numbering and naming rights. "

　　Yuzhe Zhang also participated in the formulation of the national science and technology development plan, presided over the drawing of the blueprint for the development of astronomy in the 1960s, and made outstanding contributions to the aerospace and national defense of new China.

　　Zhao Haibin said, "He is one of the founders of modern astronomy in China. At the beginning, under the auspices of Mr. Yuzhe Zhang, I made a plan on how the astronomical community in China should develop. He presided over the design of the orbit determination scheme of the first artificial satellite in China, which actually plays a very important role in the launch orbit determination of our country’s Dongfanghong satellite. "

　　As if it were an invisible compliment, the asteroid 1125, which had been "missing" before, was observed many times in 1975, 1981 and 1986. In 1988, the International Committee on Asteroid Nomenclature decided to rename the asteroid 3789 and officially named it "China Star". From "China Star" to "China Star", Yuzhe Zhang’s lifelong love and persistence are just like starlight illuminating the future of Chinese astronomy.

　　Zhao Haibin said: "What our team is doing now is actually the same as what Mr. Zhang Lao is doing. More than 4,000 new solar system small objects have been discovered. In terms of data volume, we belong to the first echelon in the world, including the accuracy of observation data, and we have not lost face to Mr. Zhang. "

　　Gong Yizhong, a retired employee of Purple Mountain Observatory, said: "He lives a simple life and has very low requirements for his own treatment. At that time, the country provided him with a special car. He never took it, so he went up the mountain with us in a big open truck. The requirements for academic research are very strict, and it is absolutely not allowed to have academic falsehood or false data. We staff members have always kept it in our minds until now. "　

　　After 70 years, the former German binoculars were replaced by the NEO telescope independently developed by China people. Since 1956, the Purple Mountain Observatory has discovered nearly 5,000 asteroids. In 2006, the near-earth object telescope and Xuyi Observatory of Zijinshan Observatory were completed, and then seven field operational observation stations were set up in Qinghai and Antarctica. In 2015, Purple Mountain Observatory took the lead in developing and operating China’s first astronomical science satellite — — "Wukong" dark matter particle detection satellite; In 2022, Kuafu I, China’s first comprehensive solar exploration satellite, which was developed by Purple Mountain Observatory as the main unit, was successfully launched, opening a new era of comprehensive solar observation in China … … Along the road opened by the old director Yuzhe Zhang, generations of Zitai astronomers have been exploring the vast universe with a tough and rigorous scientific attitude!

　　(Reporter of Jiangsu Radio and Television General Station Rong Media News Center/Editor of Huang Meng He Fei/Alina Zhang)

　　(The copyright of this news belongs to Jiangsu Radio and Television General Station, please indicate the source.)

　　Content navigation:

　　On May 9th, the largest cross talk program in the mobile phone industry was ushered in: the Hammer Spring New Product Launch, and Lao Luo’s head pill launched the dual-camera nut Pro amidst various cheers. The next few days were all about consumers’ after-dinner topics.

　　The hammer also has another blockbuster product that was not announced at the press conference. It is the hammer P1000 two-way fast charging mobile power supply.The serious white and gray overtones hide a very powerful performance. According to the spy introduction, the hammer uses a relatively rare scheme.

　　Unpacking:

　　The hammer P1000 two-way fast charging mobile power supply is priced at 199 yuan in the official mall, which is full of "feelings". The product packaging uses a white carton, and there is nothing else except a bright red hammer logo.

　　Information parameters at the bottom of the package, product name: 10000mAh two-way fast charging mobile power supply, model: P1000, input interface: Type-C, output interface: USB-A, input parameters: 5V3A/9V2A/12V1.5A, output parameters: 5V3A/9V2A/12V1.5A, battery capacity: 10000mAh/38.5Wh, Beijing Hammer Digital Technology Co., Ltd.

　　List of unpacked items: Type-A to Type-C output short line x1, mobile power supply body x1, manual x1.

　　The appearance of the whole can be divided into 3 pieces of plastic material shell, the top is pure white, the bottom shell is light gray, the surface shell is dark gray, the overly gray tone appears calm and serious, the dark gray surface shell is printed with a deeper gray hammer LOGO "smartisan", the contrast is not high LOGO does not highlight, pay more attention to the overall sense, you have to look carefully to see what the word is.

　　Looking at the bottom, the bottom case is a lighter gray shell, and the entire panel is covered with 46 grooves to improve the feel.

　　In terms of the top layout, the far left is the power activation button, and the middle of the button has a pinhole that serves as an indicator light. The green, orange and red indicators show different corresponding power levels, that is, multiple states of a single light. In the middle is a regular Type-A output hole, nominal output performance: 5V3A/9V2A/12V1.5A, and the far right is a Type-C input interface, input performance: 5V3A/9V2A /12V1.5A.

　　The corresponding relationship between the power and the color of the indicator light: green indicates 70-100% of the remaining power, orange indicates 30-70% of the remaining power, red indicates 10-30% of the remaining power, and red flashes below 10%.

　　Bottom nameplate information, product name: 10000mAh two-way fast charging mobile power supply, model: P1000, input: 5V3A/9V2A/12V1.5A, output: 5V3A/9V2A/12V1.5A, battery capacity: 10000mAh/38.5Wh, manufacturer: Beijing Hammer Digital Technology Co., Ltd.

　　The weight of the hammer two-way mobile power supply body is 179.53g, and the hammer is really lightweight in the 10,000 mAh mobile power supply. (Other products of the same level weigh more than 200g)

　　Hammer P1000 head is also very petite, length, width and height are 132mm * 67mm * 12.8mm, and friends 10,000 mAh fast charging mobile power supply size and size comparison, from left to right are Meizu M10, Romas P10S, Huawei glory AP08Q, I hammer P1000, Xiaomi 2 PLM02ZM.

　　Previous page 123 Next page

　　　　　　　　　　　　Content navigation:

　　Disassembly article:

The disassembly method of the hammer first pulls the head out, and the raised shrapnel bayonet on the main body can be seen, which is fastened to the head cap.

The battery is fixed by the inner card slot, and a 4mm space is reserved with the shell to resist impact and avoid the danger of damage to the battery cell.

　　In terms of battery packs, the hammer mobile power supply uses a high-voltage & ultra-high-density battery codenamed M74 produced by Tianjin Lishen Battery, with a single-chip 10000mAh capacity of 38.5Wh and a full-charge voltage of 4.4V discharge platform of 3.85V.

　　Under the same volume, high-voltage high-density batteries can provide higher energy. Lishen’s high-voltage high-density batteries have a huge distribution volume. Most brands of high-end mobile power models will use Lishen 4.4V batteries, which shows that they are very mature and reliable and have won the trust of major manufacturers.

Battery pack PACK process, outsourcing white anti-wear adhesive paper, inside is white insulating barley paper and high temperature resistant tape, the safety is the best.

　　At a glance on the front of the PCB, we can see that the inductance of the hammer mobile power supply is larger than that of the common ones. The 10 * 10 inductance is 7 * 7 in the conventional mobile power supply. Three parallel low-resistance patch protection tubes can effectively reduce losses and improve efficiency during high-current charging and discharging.

　　PCB back list, the back of a large area of copper clad, there is a 1206 package of 10 milliohm alloy galvanometer, the battery is directly connected to the PCB by nickel strip spot welding.

　　In terms of the solution, Suzhou Yineng Micro EasePower EDP3016 was selected. EDP 3016 is a SOC chip for fast charging mobile power supply. It integrates a variety of fast charging protocols and can realize fast charging of mobile phones/mobile power supplies.

　　Integrated charge and discharge management inside the chip, led indicator light, battery overvoltage and overcharge protection, output overvoltage, under voltage, over current, short circuit protection. Adapter overvoltage, under voltage protection, battery temperature protection and other multiple protections.

　　A variety of sub-models can support 4.2V4.3V4.35V4.4V batteries with different full voltages, with a charging efficiency of 95% (measured at 12V1.5A), a discharge efficiency of 94% (measured at 12V1.5A), and a maximum charging current of 3A with a maximum discharge current of 3.4A.

Techcode American Ted Semiconductor *** 3307 low resistance MOS, the function is to output overcurrent protection, close Q1 when overcurrent to close the output.

Single inductor structure, one inductor can handle charging and discharging, and two Techcode low-resistance MOSs next to it are responsible for synchronous rectification and boosting.

　　The power-on activation button is wrapped with a circle of shading sponge, and a 3-color LED is placed in front of the button. The multi-color LED can display a variety of remaining power status with a single LED.

A copper sheet is welded on the PCB first, and then the nickel strip of the battery is spot welded to the copper sheet. The solder joints are firm and have no breakdown.　　　　　　　　　　　　

　　　　　　　　　　　　Content navigation:

　　Performance article:

　　Come to the performance section to see the powerful performance of the hammer two-way fast charging mobile power supply. Using the POWER-Z FL001 tester to monitor the input, even the most common conventional 5V input is as powerful, with an input power of 5.02V3.15A and 15.8W.

　　Next comes the output section, using the Power-Z KM001 tester to monitor the output of the hammer mobile power supply. The maximum output performance of 5V is 4.95V3.61A and 17.9W.

　　The hammer P1000 two-way fast charging mobile power supply is made of a three-color plastic shell, with no extra lines and no extra labels. The tone is white to gray, and the monochrome calm style is exceeded. The power button contains a three-color indicator light.

　　The interface uses conventional Type-A output + Type-C interface input, and the input supports a variety of fast charging specifications such as MTK PE, QC2.0, QC3.0, and high-power 5V. The maximum input power is 18.96W. In terms of output, fast charging supports QC2.0, QC3.0, and FCP output. The maximum output power is 24.84W, providing powerful performance.

　　The battery pack is selected from the M74 high-voltage ultra-high-density battery provided by Tianjin Lishen Battery, with a 4.4V full-charge discharge platform of 3.85V and a 10000mAh 38.5Wh, which can provide higher power under the same volume.

　　The solution uses the relatively rare SOC integration solution of Suzhou Yineng Microelectronics EASE POWER EDP3016 fast charging mobile power supply, integrates a variety of fast charging protocols, integrates charge and discharge management and multiple protection functions, and all MOSs use low-resistance MOSs to further improve efficiency.

　　The performance of the hammer mobile power supply is very powerful, and whether you can afford this "hammer" of Thor depends on consumers, whether the wallet power is strong enough (199 price).