Is it difficult to count nucleic acid results? The operation of Fudan doctoral students is on fire.

  Manual verification of nucleic acid reports is time-consuming, laborious and error-prone. What should I do?

  On April 7th, Guan Wei of Fudan University issued a document. Since the beginning of March, the school has started the normalized nucleic acid screening work, requiring class counselors to check the students’ "healthy cloud" nucleic acid to complete screenshots to ensure that "no one is missed".

  Li Xiaokang, a doctoral student in the School of Information Science and Engineering, is on fire. In a few minutes, he can quickly check the nucleic acids of hundreds of people to complete screenshots, greatly improving the efficiency and accuracy of verification!

Is it difficult to count nucleic acid results? The operation of Fudan doctoral students is on fire.

  From 1 hour to 2 minutes, a string of codes is done.

  It is understood that Li Xiaokang is currently a counselor of Class 1 of Information in 2019.

  Regarding the work of checking the nucleic acid report, he said: "It sounds simple, but when it is actually done, it may take half an hour to check the screenshot of a class. If it is a department with a large number of people, it may take longer, and it may be misread."

Is it difficult to count nucleic acid results? The operation of Fudan doctoral students is on fire.

  Li Xiaokang is volunteering.

  As a doctoral student majoring in biomedical engineering, his research direction is medical imaging and artificial intelligence, and he usually comes into contact with many image processing methods. Li Xiaokang immediately thought of the OCR (Optical Character Recognition) technology he had learned before.

  "OCR can recognize the text in the image and convert it into text information, which is convenient for verification. Moreover, because the nucleic acid screenshots are printed fonts, the recognition rate is very high, and it can be almost 100% accurate. "

  He also thought of the regular expression in Python language — — You can search for specific pattern content in the string.

  "Using regular expressions, you can filter out the desired information from the text recognized by OCR. Finally, after confirming the information such as the name, detection time and whether it has been sampled in each screenshot, output the results of everyone to an Excel file for manual confirmation. "

  Finally, Li Xiaokang determined the program idea of "OCR character recognition+regular expression screening". On the evening of March 15th, it took him more than an hour to write the initial code, with a total of 130 lines, and it was found that it really worked, and it was very efficient.

Is it difficult to count nucleic acid results? The operation of Fudan doctoral students is on fire.

  Li Xiaokang’s chat with his colleagues when he first wrote the program.

  As soon as the program was written, Li Xiaokang verified it on the nucleic acid screenshot data of his class, and the accuracy rate was really high, even detecting the problems that were not found by manual verification before. Moreover, the running time of the program is very short, and it only takes more than 20 seconds for more than 80 pictures.

  Fudan University: It is expected to be covered by the whole school.

  At present, the program has served in the college for 2 weeks. Li Xiaokang once asked other teachers to try their own programs for verification. 800 screenshots, it used to take more than an hour for several people to check, but now it only takes 2 minutes to get the results.

Is it difficult to count nucleic acid results? The operation of Fudan doctoral students is on fire.

  After he told this story to a circle of friends, many colleagues expressed great interest, and he also shared the code. In order to facilitate the use of teachers who can’t program, Li Xiaokang finally packaged the program — — When you use it, you just need to enter a line of code on the command line to run it.

Is it difficult to count nucleic acid results? The operation of Fudan doctoral students is on fire.

  Excel file output by the program

  It is understood that the school information office also docked with Li Xiaokang. It is expected that in the near future, teachers and students will not need to manually collect screenshots of nucleic acids, but upload pictures directly through small programs, and they can check the statistical results at any time in the background.

Is it difficult to count nucleic acid results? The operation of Fudan doctoral students is on fire.

Is it difficult to count nucleic acid results? The operation of Fudan doctoral students is on fire.

Is it difficult to count nucleic acid results? The operation of Fudan doctoral students is on fire.

Is it difficult to count nucleic acid results? The operation of Fudan doctoral students is on fire.

  This afternoon, when China Youth Daily reporter tried to get in touch with Li Xiaokang, he was serving as a volunteer in the school building to deliver meals.

  He said: "The principle is also very simple, as long as people who can write code will understand what is going on at the first time, but those who don’t do related work will not feel the time-consuming and laborious work of this matter, and naturally they will not come up with a solution. I just use what I have learned to solve the difficulties in practical work. "

Illegal parking, urban management can also post a post, and urban management power is great again?

  It turns out that,On August 19th, the Ministry of Housing and Urban-Rural Development, as the competent department of urban management, announced the Measures for Urban Management Enforcement (Draft for Comment) (hereinafter referred to as the Measures).Among them, the right to punish illegal parking on urban roads is planned to be included in the scope of urban management law enforcement.

  What are the specific contents of "Urban Management Law Enforcement Measures (Draft for Comment)"? And listen to Xiaobian to give you a summary:

  Six main points of "Urban Management Law Enforcement Measures (Draft for Comment)":

  Point 1: Make clear the scope of administrative punishment power of urban management law enforcement.


  In this draft for comments, it is proposed that the scope of urban management administrative punishment includes the following six aspects:

  Point 2: Urban management can also post illegal vehicles.


  As mentioned above,The right to punish illegal parking on urban roads is planned to be included in the scope of urban management law enforcement. In other words, urban management can be posted in the future.Some people may think that, in this way,Is the power of urban management greater? What if it overlaps with the law enforcement authority of the traffic control department and there is a phenomenon of mutual buck passing?This authority itself should be the product of coordination with the traffic control department, which means that the traffic control department will allocate more energy to the dynamic law enforcement process in the future, and the static law enforcement should be the result of the balance of comparative advantages.


 The "Measures" clearly stipulate the scope of urban management law enforcement, which is actually to solve the coordination problem of different departments in urban management law enforcement.The six types of law enforcement scope are the products of coordination with professional departments. To some extent, it is a principal-agent behavior of law enforcement between government departments, or a transfer of law enforcement power.

— —China Renmin University School of Public Administrationassociate professor

Li Wenzhao

 

  Point 3: The competent urban management and law enforcement departments of municipalities directly under the Central Government and cities divided into districts can undertake the investigation and punishment of trans-regional and major and complex illegal cases.

  Municipalities directly under the central government, designThe competent department of urban management law enforcement of a district city may send law enforcement agencies to municipal districts or streets. The agency shall perform urban management within its jurisdiction in the name of the competent department of urban management law enforcement that set up the agency.Law enforcement duties.

  Point 4: Urban management should be certified, and the number of co-managers should be gradually reduced, and the consequences of law enforcement should be borne by the competent authorities.

  Co-management personnel cooperate with law enforcement.Personnel engaged in publicity and education, inspection, information collection, illegal activities to discourage law enforcement and other auxiliary affairs. The legal consequences arising from the co-management personnel engaging in law enforcement auxiliary affairs shall be borne by the competent department of urban management law enforcement at the corresponding level. Urban managementThe competent department of law enforcement shall strictly observe the recruitment procedures, qualifications and codes of conduct of the co-management personnel.

 

  Point 5: No unauthorized seizure of goods, and fines and confiscations shall be turned over to the state treasury.

  If the seized or detained articles are illegal articles, they shall be transferred to the relevant departments.Handle. For fresh goods or other goods that are not easy to keep, the competent department of urban management and law enforcement may auction, sell or properly handle them according to law after retaining evidence. Urban management law enforcement departments shall not charge fees, fines and confiscations.Income as a source of funds; Fines, confiscation of illegal income or confiscation of illegal property auction funds shall be turned over to the state treasury in full in accordance with regulations.

  Point 6: The whole process of law enforcement will be recorded, and the appraisal system for handling cases will be established.

  Urban management law enforcement departments should establish and improve the whole process of law enforcement record system, law enforcement publicity system, administrative penalty discretion benchmark system, law enforcement case evaluation system, strictly implement the legal review system of major law enforcement decisions, and implement the administrative law enforcement responsibility system. 、

  "measures"Make urban management law enforcement more institutionalized

  In fact, when it comes to urban management, many people think of staging with vendors.You run, you go and I’ll do it."ofCat and mouse"State, is in different forms.violent law-enforcement".Of course, in the process of law enforcement, urban management is sometimes a vulnerable group. There have been many bloody cases in which urban management team members were stabbed and killed.

 

  This is to maintain urban order, but it often becomes the target of public criticism. Urban management law enforcement is recognized as "the most difficult thing in the world".What is the problem? One word: Fa!

 

  For a long time, we have lacked a law to co-ordinate urban management, standardize law enforcement teams and restrain law enforcement behavior. Because the basis of urban management law enforcement is scattered in many departmental laws and regulations, in the face of urban management law enforcement, not onlyThe law enforcers don’t understand the basis of law enforcement, and the law enforcers themselves sometimes don’t know which law is supporting them.At the same time, "smile law enforcement", "flower law enforcement" and other pattern law enforcement methods emerge in endlessly, with different effects, highlighting the lack of lawmyasthenia".

 

  In the past, the identity and responsibilities of urban management law enforcement were unclear, and small business vendors were afraid of it, and urban management personnel also complained a lot.Working as a policeman, taking the money of wage earners.". In the future,With a clear law enforcement boundary, the relationship between law enforcement and law enforcement will turn in a benign direction.

— — CCTV commentator Wang Jian

 

  2015In, the urbanization rate of China has reached.56.1%, the permanent population of cities and towns reached.7.7100 million, the new urbanization will still be a major strategic task in China. With the promotion of new urbanization, the government’s management level needs to be improved accordingly, and refined urban management is the direction of urban management.


  The premise of refined urban management is standardization, legalization and proceduralization. Through the promulgation of the Measures, the organization, law enforcement, digital platform, hotline, law enforcement coordination and urban management coordination of urban management are specified in detail, which points out the direction for refined urban management.


  The introduction of norms is a kind of institutional innovation. Defining their respective rights and obligations through institutional innovation is conducive to more legitimacy of urban management and more recognition, cooperation and participation of the people.


— —China Renmin University School of Public Administrationassociate professor

Li Wenzhao

Expert: "Measures"It still needs to be perfected

  This "Urban Management Law Enforcement Measures (Draft for Comment)" can be said to have ushered in legal protection for urban management law enforcement, and alsoIt points out the direction for the refined management of the city.But experts believe that,There are still some "Draft for Comment"It is worthy of careful analysis and careful discussion.

  city management≠Urban governance

  In legislation, we should introduce the concept of "urban governance" and think about urban law enforcement from the perspective of "urban governance" instead of passive management. Efforts should be made to promote people’s active participation in urban governance, become the main body of urban governance, and consciously abide by various laws, regulations and rules of the city.Whether the "Measures" should use "urban management law enforcement" needs careful consideration.

  put on an equal footingStrict law enforcement"andPromote law-abiding"

  The existing "Measures" pay more attention to promoting the implementation of various laws, regulations, methods and rules of the city by exercising compulsory power and punishment power. In fact,We should also consider how to make urban citizens consciously abide by the law. Law enforcers need to assist citizens to abide by the law. Punishment is one of the tools, but it is not the only tool.

  Legal clearanceAssistant manager"

  Co-managers cannot be allowed to exist at the legal level, and putting an end to co-managers should be the direction.Once the coordinator is allowed to exist at the legal level, the seriousness of law enforcement is greatly reduced. On the contrary, the time schedule for retiring the assistant managers should be stipulated at the legal level.

  It is necessary to clarify the organizational design of urban management law enforcement.

  What is vertical management? Or territorial management? What is the agency? Or is it a territorial institution? How can different institutions work together? How to achieve cross-regional coordination? How to better allocate law enforcement agencies? These important institutions, personnel and other issues are not covered by laws and regulations.

— —China Renmin University School of Public Administrationassociate professor

Li Wenzhao

 

  Urban management, the greatest difficulty and the highest art come from onepipe/tube"Word.


  On the one hand,Urban management is by no means "everything is handed over to urban management", let alone relying on urban management personnel to "fine" to solve problems.Some people have made rough statistics, and the urban management functions of urban management are as follows110Multiple items. Only by defining the functions of urban management and the boundaries of law enforcement through legal means can it be possible to make urban management law enforcement directional and flexible.

  On the other hand,Urban management law enforcement should not be based on "management", but more importantly, it should serve the city, serve the residents and pay attention to people’s rights and well-being.Therefore, it is possible to standardize the law enforcement team and law enforcement behavior by law.manage"towardsservice"Change. The ultimate goal is for urban residents and managers to work together to create a good urban environment for common management and common life.

— — CCTV commentator Wang Jian

 

  In real life, the first reaction that a phrase "the city management is coming" often brings to vendors is "running". This reflects the embarrassing public opinion environment and the great difficulty of law enforcement faced by urban management from one side.People expect that the promulgation of a law will enable urban management to do a good job in urban management with confidence, rationality and legality. The next time someone shouts "Urban Management is coming", people will understand that it is the service provider of the city!

Heavy rains have occurred in many places. Gansu issued a yellow warning for meteorological risks of mountain torrents.

Gansu Provincial Water Resources Department and Provincial Meteorological Bureau jointly issued a yellow warning of meteorological risk of mountain torrents at 09: 00 on the 19th:

In the past 12 hours, there have been heavy rains in Tianshui, eastern Pingliang, central and southern Qingyang and eastern Longnan. It is estimated that from 09: 00 on September 19th to 20: 00 on September 19th, Qinzhou District, Maiji District, Qingshui County, Qin ‘an County, Gangu County and Wushan County of Tianshui City, Wudu District, Chengxian County, Kangxian County, Xihe County, Lixian County, Huixian County and liangdang county of Longnan City, Kongtong District, Jingchuan County and Lingtai County of Pingliang City. In other areas, mountain torrents may also be caused by local short-term heavy rainfall. Relevant departments are requested to pay attention to real-time monitoring, flood prevention and early warning, and draw people in dangerous areas to transfer to avoid danger, so that the public can pay attention to disaster prevention and avoidance.

(Reporter Jiao Jian, General Desk)

Fruit turns into a work of art, and bananas can still play like this.

Banana is not only a healthy and nutritious fruit, but also a very creative work of art. Artist Stephen Brousser borrowed simple tools such as ballpoint pens and knives, and used banana peels as canvases to give different lives to bananas.

From Marilyn Monroe to the Beatles, from plesiosaurs to Dalmatians, ordinary bananas were played with different tricks by Stephen.

Fruit turns into a work of art, and bananas can still play like this.

Fruit turns into a work of art, and bananas can still play like this.

Fruit turns into a work of art, and bananas can still play like this.

Fruit turns into a work of art, and bananas can still play like this.

Stephan has been making banana art for nearly seven years and the results are mind-blowing.
Stephen has been engaged in banana art creation for nearly 7 years, and his works are eye-opening.

Drawing upon imagery from religion, pop culture, wildlife and technology, Stephan’s whimsical creations have seen him go viral on Instagram with his posts raking up thousands of likes from his more than 79,000 followers.
These whimsical paintings contain elements of religion, pop culture, wildlife and science and technology, which makes Steven popular on Ins, with more than 79,000 fans, and the posts posted by him are liked by thousands of fans.

Fruit turns into a work of art, and bananas can still play like this.

Fruit turns into a work of art, and bananas can still play like this.

Fruit turns into a work of art, and bananas can still play like this.

And why did Steven think of painting on bananas? He told the story of his "attachment" to bananas on the indy100 website.

“My wife had been pushing me to use Instagram for a while, saying it would be great for promoting my illustrations and comics I’ve been doing in my spare time, besides my work as a graphic designer.”
"My wife has been encouraging me to play Ins. She said it is very helpful to promote my illustrations and cartoons, which I drew in my spare time. My job is to be a graphic designer."

“And just after lunchtime, I wanted to experiment a bit with the app, try out the filters and such. But since I was at the office I didn’t really have anything fun or interesting to photograph.”
"After lunch time, I want to experience this application and try functions such as filters. But because I was in the office, there was nothing interesting to shoot. "

“I then noticed I still had a banana left from lunch and figured it would make a fun picture if I just drew a little happy face on it. Discovering how pleasant it actually is to draw on a banana – there is just something about how smooth the ballpoint pen flows on the structure of the banana peel – I made another ‘fruitdoodle’, as I like to call them, the next day. One with a grumpy face, for balance sake.”
"Then, I found that there was a banana left at lunch. I thought it would be an interesting picture if I drew a smiling face on the banana. I find it very smooth to draw on banana peel with a ballpoint pen. After having fun, the next day, I drew another "fruit graffiti", which I like to call them. In order to neutralize it, the second work is an angry expression. "

This accidental experience made Stephen fall in love with the feeling of painting with bananas, and he has been out of control ever since.

“I just kinda challenged myself to see what else I could come up with to draw on a banana, and I never stopped since. After a while, I also noticed that I was getting more likes and attention for my drawings on bananas than my other stuff. So instead of my other projects, I gradually started to focus more and more on the banana art.”
"I just want to challenge myself to see what else I can create with bananas, and I can’t stop. After a while, I found that my banana graffiti gained more love and attention than other works. Therefore, I gradually began to invest more and more energy in banana art, not other works. "

Fruit turns into a work of art, and bananas can still play like this.

Fruit turns into a work of art, and bananas can still play like this.

Fruit turns into a work of art, and bananas can still play like this.

Now Stephen has compiled his works into a collection and published his first book, Fruit Graffiti. And his next plan is to introduce fruit graffiti to the world.

“Banana art has taken me across the border from Germany to the USA and I would love to get more invitations to do my banana art across the globe.”
"With the banana art, I went to Germany and the United States, and I hope to get more invitations to show my banana art around the world."

Stephan’s work isn’t just exclusive to bananas. He’s been known to incorporate all manner of fruit into his repertoire.
Stephen is not limited to creating on bananas. He has mastered the skill of painting with all kinds of fruits.

Fruit turns into a work of art, and bananas can still play like this.

So, next time you have a piece of fruit in your hand don’t just view it as a healthy and nutritious snack. View it as a piece of art which has endless possibilities.
So the next time you pick up a fruit, don’t just treat it as a healthy and nutritious food, but treat it as a work of art with unlimited potential.

English source: indy100
Compile: Dong Jing
Revising: yaning

Do you know this knowledge about "old man’s music"?

Do you know the knowledge of "Old Man’s Music"?

Overview of "Old Man’s Music": Definition and Characteristics "Old Man’s Music" mainly refers to low-speed electric three-wheeled and four-wheeled vehicles. It is named because of its simple operation, affordable price and meeting the driving needs of the elderly. This kind of vehicle usually has the following characteristics. Do you know the knowledge of "Old Man Le"?

Cheap price: Compared with traditional cars, the price of Lao Toule is lower, which is more easily accepted by consumers with limited budgets, especially the elderly.

Simple procedures: Early old people may not need complicated licensing procedures or driver’s license requirements in some areas, and the threshold for purchase and use is relatively low.

Application scenario: it is mainly used for short-distance transportation, especially in rural areas, small towns or closed communities, as a connecting tool or daily travel. Development course and supervision policy

Early development: Laotoule has various origins, which may be related to golf carts, three-wheeled agricultural vehicles and other similar means of transportation. Since the early 2000s, it has been rapidly popularized in rural areas of China. Do you know the knowledge of "Old Man’s Music"?

Standardization and upgrading: With the growth of market demand and the prominent problems of safety and environmental protection, the government began to gradually strengthen the supervision of Laodule. For example, the regulations before 2021 require that such vehicles be formally included in the standards of new energy vehicles within six months, and lead-acid batteries should be replaced by Ferrous lithium phosphate or ternary lithium batteries. At the same time, manufacturers are required to meet the standards of crash test, vehicle quality and motor performance.

Market changes: After the domestic retirement of the non-compliant Laole, the micro-new energy vehicle market has received more attention. In the international market, the old man music products made in China have even attracted the interest of European and American consumers. Brand and market situation Brand participation: There are many enterprises focusing on the production of Laodule in the market, such as Reading Automobile, which compete in this segment.

Product evaluation: Although the market exists, there is a view that as of a certain point in time (for example, in 2022), Laotoule manufacturers have not yet launched models that can compete with the mainstream products in the domestic new energy vehicle market at that time.

Influence and controversy

Social demand: Laotoule really meets the travel needs of some specific groups (especially the elderly) and provides convenient transportation solutions.

Safety and environmental protection issues: Due to the lack of unified standards and strict supervision in the early stage, Laotoule may have potential safety hazards, such as insufficient structural strength and poor braking performance. In addition, the old man who uses lead-acid batteries has a certain impact on the environment, which is why the policy later requires him to switch to a more environmentally friendly battery type.

To sum up, "Laotoule", as a special type of low-speed electric vehicle, played an important role in transportation in a specific period and region, but its development was accompanied by increasingly strict legal requirements, market transformation and the demand for safety and environmental protection performance improvement. With the advancement of standardization, the old man music industry is gradually moving closer to the standard of micro new energy vehicles to adapt to the new market environment and regulatory requirements. Do you know the knowledge of "Old Man’s Music"?

China’s position on Sino-US economic and trade consultations

  Xinhua News Agency, Beijing, June 2-the State Council Press Office published a white paper on China’s position on Sino-US economic and trade consultations on June 2. The full text is as follows:

China’s position on Sino-US economic and trade consultations

(June 2019)

People’s Republic of China (PRC)

the State Council Information Office

  catalogue

  foreword

  First, the United States provokes economic and trade frictions with China and harms the interests of the two countries and the world.

  Second, the United States reneged on its word and did not stress honesty in Sino-US economic and trade consultations.

  3. China has always adhered to the consultation position of equality, mutual benefit and integrity.

  Concluding remarks

  foreword

  Sino-US economic and trade relations are the "ballast stone" and "propeller" of bilateral relations, which are related to the fundamental interests of the two peoples and the prosperity and stability of the world. Since the establishment of diplomatic relations between the two countries, bilateral economic and trade relations have continued to develop, the areas of cooperation have been continuously expanded, and the level of cooperation has been continuously improved, forming a mutually beneficial and win-win relationship with high complementarity and interests, which not only benefits the two countries, but also benefits the world.

  Due to different stages of development and economic systems, differences and frictions are inevitable in economic and trade cooperation between the two countries. In the course of the development of Sino-US economic and trade relations, there have been many twists and turns and difficulties. In a rational and cooperative attitude, the two countries solved problems through dialogue and consultation, resolved contradictions and narrowed differences, and bilateral economic and trade relations became more mature.

  Since the new US administration took office in 2017, it has threatened to impose tariffs and other means, frequently provoking economic and trade frictions with major trading partners. Since March 2018, in response to the Sino-US economic and trade frictions unilaterally initiated by the US government, China has to take effective measures to resolutely defend the interests of the country and the people. At the same time, China has always adhered to the basic position of resolving disputes through dialogue and consultation, and conducted several rounds of economic and trade consultations with the United States in an effort to stabilize bilateral economic and trade relations. China’s attitude is consistent and clear. China and the United States are beneficial to each other, but fighting hurts each other. Cooperation is the only correct choice for both sides. China is willing to solve the economic and trade differences and frictions between the two countries in a cooperative way, so as to reach a mutually beneficial and win-win agreement. However, cooperation is principled, consultation has a bottom line, and China will never give in on major issues of principle. Regarding the trade war, China is unwilling to fight, not afraid to fight, and has to fight if necessary. This attitude has never changed.

  In order to comprehensively introduce the basic situation of Sino-US economic and trade consultations and clarify China’s policy stance on Sino-US economic and trade consultations, the China Municipal Government has issued this white paper.

  First, the United States provokes economic and trade frictions with China and harms the interests of the two countries and the world.

  The current U.S. government pursues the policy of "giving priority to the United States", adopts a series of unilateralist and protectionist measures abroad, uses the "big stick" of tariffs at every turn, and imposes its own interests on other countries. The United States launched the "201 investigation" and "232 investigation" that have been dusty for many years, and frequently attacked major trading partners, disrupting the global economic and trade pattern. The United States also pointed its finger at China, and launched a unilateral "301 investigation" in August 2017, ignoring China’s unremitting efforts and great achievements in strengthening intellectual property protection and improving the business environment for foreign investors over the years, making many negative and objective comments on China, and adopting economic and trade restrictions such as increasing tariffs and restricting investment to provoke Sino-US economic and trade frictions.

  Ignoring the economic structure of China and the United States, the characteristics of development stages and the reality of international industrial division of labor, the United States insists that China has adopted unfair and unequal trade policies, which has led to a trade deficit with China, suffered losses in bilateral economic and trade exchanges, and unilaterally imposed tariffs on China. In fact, in the era of economic globalization, the economies of China and the United States are highly integrated and form a complete industrial chain. The economies of the two countries are linked by bones and tendons, which are mutually beneficial and win-win. It is a miscalculation to regard the trade deficit as a "loss". The trade restrictions adopted by the United States against China are not conducive to China, the United States and the world.

  (A) the United States tariff measures harm others and do not benefit themselves

  The US government imposes tariffs on China’s goods exported to the United States, which hinders bilateral trade and investment cooperation and affects the confidence of the two countries and even the global market and the smooth operation of the economy. U.S. tariff measures led to a decline in China’s exports to the United States, which fell by 9.7% year-on-year from January to April 2019 (Note 4), falling for five consecutive months. At the same time, American exports to China declined for eight consecutive months because China had to increase tariffs in response to the US tax increase (Note 5). The uncertainty caused by Sino-US economic and trade friction makes enterprises of the two countries take a wait-and-see attitude towards investment cooperation. China’s investment in the United States continues to decline, and the growth rate of American investment in China has also obviously slowed down. According to statistics from China, in 2018, China enterprises directly invested 5.79 billion US dollars in the United States, down 10% year-on-year (Note 6). In 2018, the actual US investment in China was US$ 2.69 billion (Note 7), and the growth rate dropped sharply from 11% in 2017 to 1.5%. Due to the uncertain prospect of Sino-US economic and trade friction, the World Trade Organization lowered the growth rate of global trade from 3.7% to 2.6% in 2019 (Note 8).

  (B) The trade war did not bring the so-called "greatness again" to the United States.

  The tariff increase measures not only failed to promote the economic growth of the United States, but also brought serious harm.

  The first is to increase the production costs of American enterprises. The manufacturing industries between China and the United States are highly interdependent. Many American manufacturers rely on China’s raw materials and intermediate products, and it is difficult to find suitable alternative suppliers in the short term, so they can only bear the cost of increasing tariffs.

  The second is to raise domestic prices in the United States. Importing good quality and low price consumer goods from China is one of the important factors that keep the inflation rate in the United States low for a long time. After the imposition of tariffs, the final selling price of China products has increased, and in fact, American consumers have also borne the tariff cost. A study by the National Retail Federation of the United States shows that the imposition of a 25% tariff on China furniture alone will cost American consumers an extra $4.6 billion a year (Note 9).

  The third is to affect the economic growth and people’s livelihood in the United States. According to the report jointly released by the American Chamber of Commerce and Rongding Group in March 2019, due to the economic and trade friction between China and the United States, the US GDP will probably decrease by 64 billion to 91 billion US dollars every year in 2019 and the next four years, accounting for 0.3%-0.5% of the total US GDP. If the United States imposes a 25% tariff on all goods exported from China to the United States, the gross domestic product of the United States will be reduced by US$ 1 trillion in the next 10 years (Note 10). According to the research report released by the American think tank Trade Partnership in February 2019, if the United States imposes a 25% tariff on all goods exported from China to the United States, the gross domestic product of the United States will decrease by 1.01%, the number of jobs will decrease by 2.16 million, and the annual expenditure of a family of four will increase by $2,294 (Note 11).

  The fourth is to hinder US exports to China. On May 1, 2019, u.s.-china business council released the "Report on the Export of States to China — — 2019 pointed out that during the decade from 2009 to 2018, US exports to China supported more than 1.1 million American jobs, and the China market was vital to the US economy. In this decade, 48 States in the United States have achieved cumulative growth in goods exports to China, of which 44 States have achieved double-digit growth. However, in 2018, when Sino-US economic and trade frictions intensified, only 16 States in the United States achieved growth in goods exports to China, while 34 States saw a decline in exports to China, of which 24 States experienced double-digit decline, and agricultural states in the central and western regions suffered the most. Affected by tariff measures, the export of American agricultural products to China decreased by 33.1% year-on-year, of which soybeans decreased by nearly 50%, and the American industry was worried about losing the China market that had been cultivated for nearly 40 years.

  (C) US trade bullying has affected the whole world.

  Economic globalization is an irresistible trend of the times, and beggar-thy-neighbor unilateralism and protectionism are unpopular. A series of trade protection measures adopted by the United States violate the rules of the World Trade Organization, damage the multilateral trading system, seriously interfere with the global industrial chain and supply chain, damage market confidence, bring severe challenges to the global economic recovery and pose a major threat to the trend of economic globalization.

  First, it undermines the authority of the multilateral trading system. The United States launched a series of unilateral investigations such as "201", "232" and "301" according to domestic laws, and adopted measures to increase tariffs, which seriously violated the most basic and core rules of the World Trade Organization, such as most-favored-nation treatment and tariff restraint. This kind of unilateralism and protectionism not only harms the interests of China and other members, but also damages the authority of the World Trade Organization and its dispute settlement mechanism, putting the multilateral trading system and international trade order at risk.

  The second is to threaten global economic growth. The global economy has not completely emerged from the shadow of the international financial crisis. The US government has escalated economic and trade frictions and raised the tariff level, and relevant countries have to take corresponding measures, which has led to the disorder of global economic and trade order, hindered the global economic recovery, harmed the development of enterprises and people’s well-being in various countries, and made the global economy fall into the "recession trap". In January 2019, the World Bank released the Global Economic Outlook report, which further reduced the global economic growth forecast to 2.9% in 2019. Continued tension in trade relations is one of the main downside risks (Note 12). The World Economic Outlook report released by the International Monetary Fund in April 2019 lowered the forecast of global economic growth in 2019 from 3.6% in 2018 to 3.3%, and said that economic and trade frictions may further inhibit global economic growth and continue to weaken the already weak investment (Note 13).

  The third is to disrupt the global industrial chain and supply chain. Both China and the United States are important links in the global industrial chain and supply chain. The final products exported by China to the United States include a large number of intermediate products and parts imported from other countries. If the United States imposes tariffs on imported products from China, the victims will be many multinational companies, including American enterprises, which cooperate with China enterprises. Adding tariff measures leads to an artificial increase in supply chain costs, which affects the stability and security of the supply chain. Some enterprises are forced to adjust the global layout of supply chain, and global resources cannot be optimally allocated.

  It can be predicted that the latest tariff escalation measures taken by the United States against China will not only fail to solve the problem, but will further harm the interests of all parties, which China resolutely opposes. Recently, the US government has imposed "long-arm jurisdiction" sanctions on many China enterprises such as Huawei in the name of so-called "unwarranted" national security, and China is also firmly opposed.

  Second, the United States reneged on its word and did not stress honesty in Sino-US economic and trade consultations.

  After the United States provoked economic and trade frictions, China had to take countermeasures, and the trade and investment relations between the two countries were affected. Both sides believe that it is necessary to sit down and negotiate to solve the problem through consultation, based on the needs of the well-being of the two peoples and the needs of their respective economic development. Since the launch of the economic and trade consultation in February 2018, great progress has been made, and the two countries have reached a consensus on most of the contents. However, the consultation has also experienced several twists and turns, each of which stems from the United States’ violation of consensus, reneging on its words and not stressing honesty.

  (A) renege for the first time

  From the very beginning, China advocated that Sino-US economic and trade frictions should be resolved through negotiation and consultation. In early February 2018, the US government proposed that China send a high-level delegation to the United States for economic and trade consultations. China has shown great sincerity and made active efforts. It has held several rounds of high-level economic and trade consultations with the United States, focusing on in-depth exchange of views on trade imbalances and other issues, and reached a preliminary consensus on expanding imports of agricultural products and energy products from the United States, making important progress. However, on March 22, 2018, the US government threw out the so-called "301 investigation" report on China, and made false accusations against China, such as "stealing intellectual property rights" and "compulsory technology transfer". Based on this, it announced that it would impose a 25% tariff on goods worth $50 billion imported from China.

  (B) the second renege

  The China administration, focusing on the overall situation of bilateral relations, once again sent a working team to hold serious consultations with the United States. On May 19, 2018, China and the United States issued a joint statement, reaching a consensus that "the two sides will not fight trade" and agreed to continue to maintain high-level communication and actively seek solutions to economic and trade issues of their respective concern. The United States publicly stated that it would suspend its plan to impose tariffs on China. On May 29, 2018, despite the opposition of the domestic industrial and commercial circles and the general public, the US government overthrew the consultation consensus only 10 days after the two sides issued a joint statement, making wanton accusations against China’s economic system and trade policy, and announced that it would continue to push forward the tariff increase plan. Since the beginning of July 2018, the United States has imposed a 25% tariff on $50 billion of goods exported from China and a 10% tariff on $200 billion of goods exported from China for three times, and said that the tax rate will be raised to 25% from January 1, 2019. The United States also threatened to impose tariffs on all the remaining goods exported from China to the United States, which led to a rapid escalation of economic and trade friction between the two countries. In order to defend national dignity and people’s interests, China has to make necessary response and impose tariffs on US$ 110 billion worth of goods exported to China.

  (3) reneging on one’s word for the third time

  On November 1, 2018, US President Trump telephoned the Chairman of the Supreme Leader and proposed to hold a meeting between the two heads of state. On December 1, the heads of state of China and the United States met during the G-20 summit in Argentina, and reached an important consensus on bilateral economic and trade issues. They agreed to stop imposing new tariffs on each other, step up consultations within 90 days, and work towards the abolition of all tariff increases. In the following 90 days, the Chinese and American working teams held three rounds of high-level consultations in Beijing and Washington, and reached many preliminary consensus on the principles and contents of the Sino-US economic and trade agreement. On February 25, 2019, the United States announced that it would postpone the original deadline for raising tariffs on US$ 200 billion worth of goods exported from China to the United States from March 1. From the end of March to the end of April, the working teams of the two countries held three rounds of high-level consultations and made substantial progress. After several rounds of consultations, the two countries have reached an agreement on most issues. In view of the remaining problems, the China government proposed that both sides should make mutual understanding and accommodation, and jointly seek solutions to their differences.

  However, the U.S. government pushed its luck, adopted a hegemonic attitude and extreme pressure, insisted on unreasonable high asking price, insisted on not canceling all tariffs imposed since the economic and trade friction, and insisted on writing mandatory requirements concerning China’s sovereignty affairs in the agreement, which led to the delay in bridging the remaining differences between the two sides. On May 6, 2019, the United States irresponsibly accused China of "retrogression" and tried to blame China for the unfinished negotiations. Despite China’s resolute opposition, the tariff rate on 200 billion US dollars of China’s goods exported to the United States was raised from 10% to 25% on May 10, which led to a serious setback in Sino-US economic and trade negotiations. On May 13th, the United States announced the initiation of the procedure of imposing tariffs on the remaining about $300 billion of goods exported from China to the United States. The above-mentioned actions run counter to the consensus of the first US dollar to resolve frictions through consultations, and run counter to the expectations of the two countries and people all over the world, casting a shadow over bilateral economic and trade consultations and the prospects of world economic growth. In order to defend its own interests, China has to take measures to increase tariffs.

  (D) Sino-US economic and trade consultations have been seriously frustrated, and the responsibility lies entirely with the US government.

  It is totally nonsense for the US government to accuse China of "driving backwards" in the negotiations. In the process of negotiation between the two sides, it is a common practice in trade negotiations to propose amendments and adjustments to the text content and related expressions. In the past ten rounds of negotiations, the US government has constantly adjusted relevant demands and accused China of "retrogression" at will. Historical experience has proved that trying to reach an agreement by throwing dirty water, dismantling Taiwan and exerting extreme pressure will only undermine the cooperative relationship between the two sides and miss historical opportunities.

  In a country of gentlemen, courtesy comes first, then soldiers. After the United States raised the new tariff threat, the international community was generally worried that China might cancel the consultation plan to the United States and pay attention to the future of Sino-US economic and trade consultations. Proceeding from the overall situation of maintaining Sino-US economic and trade relations, China maintained a rational and restrained attitude. According to the previous agreement between the two sides, he sent a high-level delegation to the United States for the eleventh round of economic and trade consultations from May 9 to 10, 2019, demonstrating his utmost sincerity and responsible attitude in resolving economic and trade differences with the United States through dialogue. China and the United States had frank and constructive exchanges, and agreed to work hard to control differences and continue to promote consultations. China expressed strong opposition to the unilateral imposition of tariffs by the United States, clarified its solemn position and said that it would have to take necessary measures to fight back. China once again stressed that economic and trade agreements must be equal and mutually beneficial, and will never give in on major issues of principle involving China’s core interests. The premise for the two sides to reach an agreement is that the United States will cancel all tariff increases, and the procurement should be in line with reality, while ensuring that the text of the agreement is balanced and in line with the common interests of both sides.

  3. China has always adhered to the consultation position of equality, mutual benefit and integrity.

  The China government has always believed that the threat of trade war and the constant imposition of tariffs are not conducive to solving economic and trade problems. China and the United States should uphold the spirit of mutual respect, equality and mutual benefit, resolve problems through consultation in good faith, narrow differences, expand common interests, and jointly safeguard global economic stability and development.

  (1) Consultation should be based on mutual respect, equality and mutual benefit.

  As the world’s two largest economies and trading powers, it is normal for China and the United States to have some differences in economic and trade cooperation. The key is how to enhance mutual trust, promote cooperation and control differences. Proceeding from the overall situation of safeguarding the common interests of the two countries and the world trade order, China insists on solving problems through dialogue and consultation, responds to the concerns raised by the United States with utmost patience and sincerity, properly handles differences by seeking common ground while reserving differences, overcomes various difficulties, puts forward pragmatic solutions, and makes arduous efforts to promote bilateral economic and trade consultations. During the consultation, China has always adhered to the principles of mutual respect, equality and mutual benefit, and worked hard to reach an agreement acceptable to both sides.

  Mutual respect means respecting each other’s social system, economic system, development path and rights, respecting each other’s core interests and major concerns, not challenging the "bottom line" or crossing the "red line", not at the expense of one party’s right to development, and not damaging a country’s sovereignty. Equality and mutual benefit means that the status of consultation between the two sides is equal, the results of consultation are mutually beneficial, and the final agreement is win-win. If one side forces the other side to negotiate, or if the negotiation results only benefit one side, such negotiations will not succeed.

  (two) the consultation should move in the opposite direction and be based on honesty.

  Consultation requires mutual understanding and joint efforts. Consultation is a process in which the parties concerned seek consensus or compromise on the problems they face through discussion. There are many variables during the consultation. It is normal for all parties to react differently to various changes at different stages from their own interests. China government believes that economic and trade consultation is an effective way to solve the problem. Only when all parties hold a goodwill attitude and fully understand each other’s position during the consultation process can we create favorable conditions for the success of the consultation. Otherwise, it will be impossible to form a basis for reaching a long-term effective agreement and it will be difficult to reach a sustainable and executable agreement.

  Honesty is the basis of negotiation. The China administration has always been based on honesty, and has held consultations with the US government with great sincerity. China attaches great importance to the concerns of the United States and strives to find effective ways and means to resolve the differences between the two sides. Significant progress has been made in the 11 rounds of high-level economic and trade consultations held by the two sides. The results of these consultations are in the interests of both China and the United States, and they are the result of joint efforts and direction. During the consultation, China stressed that credit is important and commitment is important, and repeatedly stressed that if the two sides reach an agreement, China will earnestly and earnestly fulfill its commitments.

  (3) China will never give in on the issue of principle.

  Every country has its own principles. During the consultation, the sovereignty and dignity of a country must be respected, and the agreement reached by both sides should be equal and mutually beneficial. China will never back down on major issues of principle. Both China and the United States should see and recognize the differences and stages of national development and respect each other’s development path and basic system. We can’t expect to solve all the problems through one agreement, but also need to ensure that the agreement meets the needs of both parties at the same time and realizes the balance of the agreement.

  The recent announcement by the United States to increase tariffs on China is not conducive to solving bilateral economic and trade problems. China strongly opposes this and has to respond to it to safeguard its legitimate rights and interests. China’s position and attitude are consistent and clear, and China hopes to solve the problem through dialogue rather than tariff measures. For the benefit of China people, American people and people all over the world, China will treat it rationally, but China will not be afraid of any pressure and is ready to meet any challenge. Talk, the door is open; Fight, fight to the end.

  (D) No challenge can stop China’s progress.

  The development of China will not be smooth sailing, and there will inevitably be difficulties, obstacles and even stormy waves. Facing all kinds of risks and challenges, China is confident to face up to difficulties, turn crises into opportunities and open up a new world.

  No matter how the situation develops and changes, China insists on doing his own thing. Developing and strengthening yourself through reform and opening up is the fundamental way to deal with economic and trade frictions. There is a huge demand in China’s domestic market. The promotion of supply-side structural reform will bring about an overall improvement in the competitiveness of products and enterprises, and there is ample room for fiscal and monetary policies. China can maintain a good momentum of sustained and healthy economic development, and its economic prospects are very optimistic.

  China will continue to deepen its reform and opening up, and the door of China will not be closed, but will only grow wider. In the keynote speech at the opening ceremony of the second Belt and Road International Cooperation Summit Forum, the Chairman of the Supreme Leader announced that China will adopt a series of major reform and opening-up measures, strengthen institutional and structural arrangements, and promote a higher level of opening up, including expanding foreign market access in a wider range, strengthening international cooperation in intellectual property protection, increasing imports of goods and services on a larger scale, more effectively implementing coordination of international macroeconomic policies, and paying more attention to the implementation of opening-up policies. A more open China will form a more benign interaction with the world and bring more progress and prosperity to China and the world.

  Concluding remarks

  Cooperation is the only correct choice for China and the United States, and a win-win situation can lead to a better future. In the general direction of Sino-US economic and trade consultation, China is not looking backward, but looking forward. The differences and frictions between the two sides in the economic and trade field will eventually need to be resolved through dialogue and consultation. It is in the interests of China and the United States to reach a mutually beneficial and win-win agreement, which conforms to the expectations of all countries in the world. It is hoped that the United States and China will go hand in hand, manage economic and trade differences and strengthen economic and trade cooperation in the spirit of mutual respect, equality and mutual benefit, jointly promote Sino-US relations based on coordination, cooperation and stability, and enhance the well-being of the two countries and the people of the world.

  (Note 1) In February, 2018, the Center for Global Innovation Policy of the American Chamber of Commerce released the 2018 International Intellectual Property Index Report, which stated that in 2018, China ranked 25th among 50 economies with a score of 19.08, up two places from 2017, http://www. theglobalipcenter.com/wp-content/uploads/2007.

  (Note 2) On January 18, 2018, China National Intellectual Property Administration, China held a press conference on the main work statistics and related information in 2017, http://www.sipo.gov.cn/twzb/gjzscqj 2017 nzygztjsjjgqkxwfbk/.

  (Note 3) u.s.-china business council website: 2019 State Export Report, https://www.uschina.org/reports/2019-state-export-report, May 1, 2019.

  (Note 4) Website of China General Administration of Customs: http://www.customs.gov.cn/customs/302249/302274/302275/2418393/index.html, May 8, 2019.

  (Note 5) Website of China General Administration of Customs: http://www.customs.gov.cn/customs/302249/302274/302275/2418393/index.html, May 8, 2019.

  (Note 6) Data of China Ministry of Commerce.

  (Note 7) Website of the Ministry of Commerce of China: China’s FDI absorption news from January to December 2018, http://www.mofcom.gov.cn/article/tongjiziliao/v/201901/2019010283209.shtml, January 15, 2019.

  (Note 8) World Trade Organization (WTO) website: WTO Trade Forecasts: Press Conference, https://www.wto.org/English/news _ e/spra _ e/spra255 _ e.htm, April 2, 2019.

  (Note 9) The website of the National Retail Federation of America: NRF Warns USTR Tariffs Would Cost Americas Billions, Releases New Study on Consumer Impact, Https://nrf.com/media-center/press-releases/nrf-warnings-USTR-towers-would-cost-Americans-bills-releases-new-study, August 22, 2018.

  (Note 10) Rongding Group website: Asserting the Costs of Targets on the US ICT Industry: Modeling US China Targets, https://rhg.com/research/Asserting-the-Costs-of-Targets-on-the-US-ICT-Industry, March 15, 2019.

  (Note 11) Trading partner websites: estimated impacts on the U.S. economy and workers (2019), https://tradepartnership.com/reports/estimated-impacts-of-targets-on-the-u-s-economy-and-workers.

  (Note 12) World Bank website: Global Economic Prospects, https://www.worldbank.org/en/publication/global-economic-prospects, January 8, 2019.

  (Note 13) International Monetary Fund website: World Economic Outlook, https://www.imf.org/en/publications/WEO/issues/2019/03/28/world-economic-outlook-April-2019, April 2, 2019.

Central Meteorological Observatory: Cold air will affect most parts of China. There is heavy fog in Huanghuai and other places in North China.

CCTV News:According to the website of the Central Meteorological Observatory, due to the influence of strong cold air, from 10th to 13th, northerly winds of 4~6 grades will appear in most parts of northwest China, North China, Northeast China and most parts of the south of the Yangtze River, with the temperature dropping by 4~8℃, and the temperature in central and southeastern Inner Mongolia, Liaoning, Jilin and southeastern Heilongjiang will drop by 10~14℃, and the local temperature will be above 14℃. It is estimated that from the morning of November 10th to the morning, there will be foggy weather with visibility less than 1km in parts of eastern Beijing, Tianjin, northeastern and southern Hebei, southeastern Shanxi, northwestern and southern Shandong, Jiangsu, eastern Anhui, Shanghai, northern Zhejiang, central and northern Shaanxi and Hetao area of Inner Mongolia.

  Cold air will affect most parts of China.

  Affected by strong cold air, from 10th to 13th, northerly winds of 4-6 grades will appear in most parts of northwest China, North China, Northeast China and most parts of the south of the Yangtze River, and the temperature will drop by 4-8℃. The temperatures in central and southeastern Inner Mongolia, Liaoning, Jilin and southeastern Heilongjiang will drop by 10-14℃, and the local temperature will be above 14℃.

  Among them, from 08: 00 on November 10 to 08: 00 on December 12, the temperature in central and eastern Xinjiang, most of Inner Mongolia, Gansu, eastern and northern Qinghai, Ningxia, Shaanxi, western Shanxi, northern Hebei, western Liaoning, western Jilin, western Henan, northeastern Sichuan and other places will drop by 4~6℃, and the cooling range in parts of western and southern Gansu, Hetao area of Inner Mongolia and northwestern Shaanxi will reach 8 ~ 10. There will be 4~6 northerly winds and 7~8 gusts in the above areas (see Figure 1). The Central Meteorological Observatory continued to issue the gale cooling forecast at 06: 00 on November 10th.

  Figure 1 National gale cooling forecast chart (08: 00 on November 10th-08: 00 on December 12th)

  Affected by cold and warm air, there will be a wide range of rain and snow weather in the central and eastern regions from the 10th to the 12th, with heavy rain in parts of Shaanxi, south-central Shanxi, central and northeastern Hebei and south-central Liaoning. There are heavy snowstorms in parts of central and southeastern Inner Mongolia, northern Liaoning, Jilin and southeastern Heilongjiang.

  There is heavy fog in Huanghuai and other places in North China

  It is estimated that from the morning of November 10th to the morning, there will be foggy weather with visibility less than 1km in parts of eastern Beijing, Tianjin, northeastern and southern Hebei, southeastern Shanxi, northwestern and southern Shandong, Jiangsu, eastern Anhui, Shanghai, northern Zhejiang, central and northern Shaanxi, Hetao area of Inner Mongolia, etc. Among them, visibility is less than 500km in parts of southern Tianjin, northern Jiangsu, northeastern Anhui, Shanghai, northern Zhejiang and Hetao area of Inner Mongolia. The Central Meteorological Observatory continued to issue a foggy yellow warning at 06: 00 on November 10.

  Specific forecast for the next three days

  From 08: 00 on November 10 to 08: 00 on November 11, there were small to medium snow or sleet and local heavy snow in parts of western and northeastern Inner Mongolia, northwestern Heilongjiang, eastern and northern Qinghai-Tibet Plateau, central and eastern Gansu and northern Ningxia. There are small to moderate rains in Hetao area of Inner Mongolia, Liaoning, south-central Gansu, most of Ningxia, Shaanxi, Shanxi, southwestern Hebei, western and northern Henan, Sichuan Basin and eastern Zhejiang, among which there is heavy rain (25 ~ 45 mm) in parts of northwestern Shaanxi. There are 4 ~ 6 winds in parts of eastern Xinjiang, most of Inner Mongolia, Hexi in Gansu and Ningxia (see Figure 2).

  Figure 2 National Precipitation Forecast Chart (08: 00 on November 10th-08: 00 on November 11th)

  From 08: 00 on November 11th to 08: 00 on the 12th, there were small to medium snow or sleet in parts of Inner Mongolia, Heilongjiang, western Jilin, eastern and southern Qinghai, central and southern Gansu, Ningxia, northwestern Shaanxi and northern Hebei, among which there were heavy snowstorms (10 ~ 19 mm) in parts of central and eastern Inner Mongolia and western Jilin. There are small to moderate rains in the eastern and southern parts of Northeast China, south-central North China, eastern Northwest China, Huanghuai, Jianghan and Sichuan Basin, among which there are heavy rains (25-45 mm) in parts of central Jilin, western Liaoning, southwestern Shaanxi, north-central Hebei, northeastern Beijing and southwestern Shandong. There are 4 ~ 6 winds in most parts of Inner Mongolia, Northeast China, Huanghuai and other places (see Figure 3).

  Figure 3 National Precipitation Forecast Chart (08: 00 on November 11th-08: 00 on December 12th)

  From 08: 00 on November 12 to 08: 00 on November 13, there were small to medium snow or sleet in parts of eastern Heilongjiang, central and eastern Jilin, central and northern Liaoning, southern Qinghai, northern and eastern Tibet, and northern Sichuan Plateau. Among them, there were heavy snowstorms (10-19 mm) in parts of southeastern Heilongjiang and central and eastern Jilin. There are small to moderate rains in parts of the south of Northeast China, the southeast of Northwest China, Huanghuai, Jianghuai, Jianghan, northern Jiangnan, eastern Southwest China, Hainan Island, etc. Among them, there are heavy rains (25 ~ 35 mm) in parts of eastern Liaoning and northeastern Chongqing. There are 4 ~ 7 winds in parts of central Inner Mongolia, Liaoning, northern Hunan and northern Zhejiang (see Figure 4). There are 7 ~ 8 strong winds in Bohai Sea.

  Figure 4 National Precipitation Forecast Chart (08: 00 on November 12-08: 00 on November 13)

  Influence and concern

  From the night of 1.9 to the 13th, strong cold air continued to affect our country, with strong winds cooling in the central and eastern regions and large-scale rain and snow in the north, and we were concerned about the adverse effects on traffic, urban operation, human health and energy supply.

  2.10-11 Fog or haze weather and its influence in Huanghuai and other places in North China;

  3. Pay attention to the development trend of meteorological drought in Jiangnan and northern South China;

  4 forest and grassland and urban and rural fire prevention meteorological services.

Announcement on Changes of Government Procurement Projects in Linxiang Financial Media Recording Production Functional Zone and High Standard Definition Broadcasting Functional Zone System

Hardware platform for acquisition and production function area of media integration center

serial number

device name

Equipment description

quantity

unit

one

Super slow-motion movie HD camera (including lens)

1. Lens and interface: E-mount lens, using a new type of lock ring E bayonet, installed in the form of turning the card holder.(Locking lever type,Turn the lock ring on the lens holder without turning the lens.),equip18 to 110 mm* zoom constant F4 maximum aperture lens, 27-165 35mm equivalent focal length (APS-C).; format 35/APS-C; Lens structure (group-piece) 15-18; Angle of view (APS-C) 76-14 30 "; Maximum aperture (F)4 Minimum aperture (f) 22; Aperture blade number 7 circular aperture; Minimum focal length (m); Minimum focal length (feet) 0.4 (W)-0.95 (T) m (auto focus/manual focus), 0.95 m (complete manual focus) m (1.31; The focusing ring can be switched between automatic and manual focusing, and the optical image stabilization is realized..

2. Imaging equipment (type):4K 35mm Type a single chip Exmor CMOS;; Effective pixels 17:9 4096 (H) x 2160 (V), 16: 9 3840 (h) x 2160 (v); ND filter with built-in optical filter: Off, 1/4ND, 1/16ND, 1/64ND,Stepless adjustable NDSupport linear variability ND(1/4ND to 1/128ND), with 4K/2K RAW and XAVC recording functions;

3、Slow motion and fast motion function XAVC-I mode 3840×2160: 1 to 60 frames (59.94P, 50P, 29.97P, 23.98P, 25p); XAVC-I mode 1920×1080:1 to 180 frames (59.94P, 29.97P, 23.98p) and 1 to 150 frames (50P, 25p); XAVC-L mode 3840×2160: 1 to 60 frames (59.94P, 50P, 29.97P, 23.98P, 25p); XAVC-L mode 1920×1080: 1 to 120 frames (59.94P, 50P, 29.97P, 23.98P, 25P).

4、Sensitivity (2000 lx, 89.9% reflectivity) Video Gamma: T14(3840 x 2160/23.98P mode 3200K),ISO sensitivity ISO 2000(S-Log3 Gamma D55 light source);The minimum illumination is 0.7 lx(+18dB,23.98P, shutter closed, ND transparent, F1.4).,Signal-to-noise ratio is 57 dB (Y) (typical)
5、10. white balance preset, memory a, memory B(1500K-50000K)/ auto-tracking white balance.;Gain -3, 0, 3, 6, 9, 12, 18 dB, AGC;Gamma curves STD,HG,User,S-Log2, S-Log3.

sixInput/output: audio input XLR type 3-pin (female) (x 2), line/microphone/microphone +48 V optional microphone reference: -40, -50,-60 DBU; SDI outputs BNC(x2), which can be switched between 3G-SDI/HD-SDI SMTPE292m/424m/425m; HDMI output type a (x1).

sevenStorage medium: XQD card slot (x2), SD card slot (x1) is used to save configuration data.

8、Recording frame frequency XAVC-I DCI4K mode: 4096×2160/ 59.94P, 50P, 29.97P, 23.98P, 24P, 25P.;XAVC-I QFHD mode: 3840×2160/59.94P, 50P, 29.97P, 23.98P, 25P.

XAVC-I HD mode: 1920×1080/59.94P, 50P, 59.94i, 50i, 29.97P, 23.98P, 25P.;XAVC-L QFHD mode: 3840×2160/59.94P, 50P, 29.97P, 23.98P and 25P.

XAVC-L HD 50 mode: 1920×1080/59.94P, 50P, 59.94i, 50i, 29.97P, 23.98P, 25P.;XAVC-L 35 mode: 1920×1080/59.94P, 50P, 59.94i, 50i, 29.97P, 23.98P, 25P.;XAVC-L 25 mode: 1920×1080/59.94i, 50i;MPEG HD422 mode: 1920×1080/59.94i, 50i, 29.97P, 23.98P, 25P.,1280×720/59.94P,50P,29.97P,23.98P,25P; The maximum supported bit rate is 600Mbps;
nineFor the above parameters, a copy of the SARFT test report shall be issued with the official seal of the manufacturer, and an after-sales service commitment letter provided by the manufacturer shall be issued.Copy stamped with official seal.

one

platform

2

Professional camera

1、 3 pieces of 4K 1/2 inch CMOSback-illuminated sensorImager, supporting 3840*2160, fixed lens interface, zoom ratio of 17 times (optical); Servo/hand, focal length f = 5.6-95.2, 35mm equivalent: 30.3-515mm; Apertures F1.9-F16 and off, automatic/manual optional., optical system F1.6 prism system;
2、XAVC Intra/Long GOP with MPEG HD422/HD420 and DVCAM formats., up to 600 Mbps,Support 4K QFHD 60p/50p 10bit 4:2:2 recording.,With 12G/3G/HD/SD-SDI and HDMI output interfaces.; With 12G-SDI 4K video signal output;
3、Excellent HDR performance,Support HLG/BT.2020,Support S-Log3;
4. Support high-quality recording of XAVC Intra and XAVC Long GOP. Xavc technology is based on H.264 standard, Xavc codec adopts 10-bit sampling, and supports broadcast standards MPEG HD422 50 Mbps and MPEG HD, which is in line with EBU’s new proposal for making long programs.
5. 0.5-inch high-quality OLED finder with wide viewing angle, high contrast and high resolution (2.36M pixels); ND gray filter; Off: Clear, 1: 1: 1/4ND, 2: 1/16ND, 3: 1/64ND, 4:With stepless adjustable ND function, 1/4-1/28ND can be adjusted linearly, and can be set to automatic mode.;

5、adoptSxSProfessional memory card records with 2 card slots., which can be recorded in Synchronous, Relay or Backup modes;Memory stick /SD/XQD card can be used for recording through the adapter.;

6、It has the newly developed face detection AF function. You can choose between Face Priority Af and Face Only AF.; Double MI hot boots can realize power supply and signal connection, and coordinate the on/off switching function with compatible accessories. Can connect and control the same brand wireless microphone system;

7、Wi-fi/NFC: IEEE 802.11a/b/g/n/AC, which supports both 5Ghz and 2.4Ghz Wi-Fi, and conforms to the category 3 label standard of NFC Forum.;Remote control and video browsing can be carried out through Apple/Android intelligent terminal.;With two USB ports, two 4G network cards can be connected simultaneously for wireless transmission., dual-link network aggregation push live broadcast function;

8、Slow motion and fast motion functions: < xavclong > 2160p: 1-60fps, 1080P: 1-60 fps, 720P: 1-60 fps;; <MPEG HD422>1080P: 1-30 fps、720P: 1-60 fps;

9、Input/output: audio input XLR type 3-pin (female) (x 2), cable/microphone +48 V optional, lines: +4, 0, -3dBu/10k, microphone: -80dBu to-30dbu/3kΩ; Video output BNC (x1), HD-Y/ HD-SYNC/ composite; Audio output has been integrated into the Multi/Micro USB jack (x1); SDI output BNC (x1), 12G/3G/ HD/SD optional; HDMI output type a (x1); Wired LAN RJ-45 (x1), 1000BASE-T, 100BASE-T, 10base-t.

10、The minimum illumination is 0.0013lx (typical), (1920 x 1080/59.94i mode, F1.9, +42 dB gain, high sensitivity mode, 64 frames accumulation).

11、Copy stamped with official seal

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15

On-site shooting box-borne system

System components (front panel):

1、 HD/SD 12-channel switchboard (including control keyboard): it is composed of a host computer and a control panel, providing 10-bit 4: 2: 2 broadcast quality, 8-channel HD-SDI or 6-channel HD-SDI+2-channel HDMI input combinations, 2 sets of HDMI output terminals, and four kinds of MutliView mode outputs can be set, providing operators with their own habit of setting monitoring output modes, and the screen of each set of input signals has audio volume meter display. It contains two sets of downstream keys (DSK) to meet the requirements of outdoor graphic communication system of main control or auxiliary control room; The downstream key can be changed to Luma function, and the PPT of the computer is input by HDMI interface to perform simple subtitle display; Can produce two groups of picture-in-picture, live or news programs can be broadcast synchronously in remote online mode; Support SDI Embedded Audio input, and built-in De-embedded function, and the de-embedded audio is output by XLR interface; Provide four sets of XLR audio inputs, which are compatible with LINE audio inputs and can be embedded in video for output; Users can define four groups of SD/HD-SDI outputs, define and place twin mother images, two downstream keys (DSK), and choose basic brightness keying or Alpha Channel. A built-in subtitle superposition generation system can also be used together with this product’s subtitle software, with two groups of independent logo.Users can choose from seven stored logos to add to the preview and main output screen, a group of dynamic LOGOs or image moving special effects, the file format is TGA, GIF or AVI, and it can be up to 75 frames long. The clock (HH:MM) is placed on the main output screen, which can be replaced by LOGO. The backplane of the host computer has been connected with power supply, control panel and multi-split output.

2. The 1RU storage location slides out of the HD/SD 17.3-inch LCD monitor: 1920 x 1080P panel resolution, supports 3G-SDI video input with loop-through output, and supports two sets of HDMI inputs. The brightness, contrast, color saturation and LED backlight brightness of the screen can be adjusted individually, and the screen Underscan and Overscan modes can be selected. Users can select the color temperature, earphone hole on the front panel, two-color Tally lamp and 3.5mm Tally signal connection hole, safe area, Blue Only gray-scale video display, support SDI and HDMI (ver. 1.3) embedded audio, screen enlargement (HD mode only), USB fireware update port, and display Timecode, Center Mark, 4: 3 Aspect, Cinema Zone and Volume Meter (SDI) on the upper video.

3. HD/SD-SDI high-definition hard disk video recorder, with a standard 19-inch width and height of only 1U, uses a 2.5-inch hard disk as the recording storage medium, supports time code input/output, external synchronization signal, RS-232/422 (DSUB9PIN), GPI (MINXLR) control mode, power failure protection and other functions, and supports MXF OP1A and MOV video storage. Broadcast level 4:2:2 color sampling, 8bit video recording; Two sets of XLR analog audio input with internal keys can be stored with embedded SDI video; It has the monitoring function provided by earphone output terminal, and has LED volume meter display; Support NTF S hard disk file system, not limited by 2GB or 4GB file recording restrictions; Interfaces: 1 x SDI (input loop thru), 1 x HDMI, 1 x SDI (out); Video formats are 1080p 23.97/24Hz, 1080i 50/59.94/60Hz, 720p 50/59.94/60Hz, 576i 50Hz, 480i 59.94Hz;; The system configuration includes two 2.5-inch 512G removable hard disks (USB 3.0 interface).

4. Wave monitoring vector monitor, which includes waveform vector tester, can provide two monitoring 4.3-inch HD screens, 19-inch rack ruler and 2U height for real-time monitoring of 1-8 channels, and provide functions such as HISTOGRAM brightness monitoring, VECTOR SCOPE vector instrument and SAVE TRACE to complete brightness correction.

5. 8-channel pilot talk system: it has eight sets of sub-phones, and can use one-to-one or one-to-many talk mode to provide earphone and microphone connection terminals for mobile phones. It adopts standard cabinet hardware design with a height of 1U, and the buttons have light display and built-in speakers. Sub-unit half-duplex call system, button talk, to avoid the environmental noise of each sub-unit from being transmitted to the host when it is not talking. The slave and the slave can talk to each other, and both have volume adjustment; The red/yellow TALLY lamp and the sub-machine supply power, and the 5-wire connector to the sub-machine includes two-way call, and the two-color red/yellow Tally lamp and the sub-machine supply power; The calling distance is more than 200 meters; , including 8 sets of handset package (including wire, handset, headset and Terry lamp)wait for)。

System components (rear panel):

6, 8 groups of 1U rack panels with CVBS output interfaces.

7. Call system panel, which can be connected with a call handset (5PIN XLR).

8. 1U half-rack panel, which can output SDI PGM output and HDMI multi-split output of switchboards.

9. Audio delay M: The audio delay can delay the main output audio of up to 17 frames.

10. Power supply center A: The power supply center is equipped with an AC step-down automatic conversion DC switch.

11. 8U flying box–soft cotton inner wall, which can absorb impact force and ensure safe transportation.

12. Other accessories: 3 50M(HD-SDI/ITC/CV/DC power supply) integrated cables and 3 30m(HD-SDI/ITC/CV/DC power supply) integrated cables. The cable includes the following interfaces: 1×4-pinxlr power cable (pin1+/pin2-), 1 x 5-pin XLR ITC/Tally cable, 1 x 75Ω BNC for HD/SD SDI video, 1×75 Ω BNC for CV Return Video DC; 8 sets of 12/7.2V 4.0A power regulators;

13. The backboard of the host has been connected with power supply, control panel and multi-split output.

14. Is the system compatible with video recognition rate? 1920 x 1080i 50  ? 1920 x 1080i 59.94  ? 1920 x 1080i 60 ? 1920 x 1080p 25 ? 1920 x 1080p 29.97 ? 1920 x 1080p 30 ? 1920 x 1080p 50 ? 1920 x 1080p 59.94 ? 1920 x 1080p 60  ? 720 x 576i 50 (PAL) ? 720 x 480i 59.94 (NTSC)
▲1

Commitment letter of after-sales service provided by the manufacturerCopy stamped with official seal

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32

4K Ultra HD Post-production Packaging System (Non-editing)

1. ★ Hardware configuration requirements shall not be lower than: brand original installation machine, Xeon 4114 * 2/64GB/512G SSD/2TB SATA data hard disk *4/ NVIDIA P2000(5GB)/DVD burning /4K full interface card, providing 4K/HD/SD 12G-SDI input and output, and 4K/HD/SD HDMI 2.0 input and output. HD/SD component, composite, S-video video input and output, 2-channel balanced analog audio input and output, 2-channel AES/EBU unbalanced input and output, black field and three-level synchronous input, up-and-down conversion function based on hardware, and support AE and Photoshop screen display (provide a copy of the whole machine inspection report of the State Administration of Radio and Television with the official seal of the manufacturer).

2. ★ Based on Windows10 operating system and full Chinese operation interface, it can realize the whole process production of ultra-high definition video and audio production, visual effect packaging, subtitles and audio processing; Ensure that non-editing realizes the networked collaborative production process of the whole set of programs, including collection, editing, production, storage and management; Ultra HD non-editing software package is standard, including: media-melting non-editing software/audio production software/independent post-packaging synthesis software/3D graphic animation production software/non-editing network management software/media file detection transcoding software/weather forecast production plug-in/intelligent lyrics production software/lyrics conversion software/sequence animation synthesis software/handwriting animation software/PPT conversion software/resource interaction software/bulletin board production tool; All editing and post-packaging software are the same domestic company brand and have the "Computer Software Copyright Registration Certificate and the Inspection Report Certificate of the State Administration of Radio, Film and Television" from the National Copyright Administration of China (the copy is stamped with the official seal of the manufacturer);

3、Post-packaging software, supporting three-dimensional multi-window editing and node operation; Support the regulation of professional camera and point light source, parallel light, spotlight and ambient light; Support high-precision color keys, color correction, masking and tracking functions; FBX,. x, obj and 3DS files can be imported; Support the creation of three-dimensional particles and realize the effects of rain, snow, flame, explosion and fireworks; Support RGB histogram, RGB waveform diagram, VectorScorp and other technical supervision tools; Directly and seamlessly connect with the non-edited timeline, without rendering and synthesis; (Provide a copy of the whole machine inspection report of the State Administration of Radio and Television with the official seal of the manufacturer)

4. Audio production software, which supports multi-track audio production, special effects processing and mixed output at the sampling point level; Support dubbing and automatic recording of reference videos; Support 5.1 surround sound production; Provide core effects such as noise remover and time/tone conversion; Support teleprompter function; Support the realization of resource interoperability with non-edited resource pools; (Provide a copy of the whole machine inspection report of the State Administration of Radio and Television with the official seal of the manufacturer)

5. Professional network management tool software; Based on database background management in network working mode, it supports three-level space control management of storage, columns and users; Support multi-user sharing non-editing system, and assign non-editing rights according to different user roles; Support interconnection between systems and unify user authentication; Support super administrator users to control network resources and log queries in a unified way. (Provide a copy of the whole machine inspection report of the State Administration of Radio and Television with the official seal of the manufacturer)

6. Requirements for 3D packaging synthesis software: independent packaging software, supporting 3D scene editing, multi-view editing and multi-window editing, supporting node operation, and having the function of directly replacing template element storyboards; (Provide a copy of the whole machine inspection report of the State Administration of Radio and Television with the official seal of the manufacturer)

7. Handwritten animation software requirements: support recording hand-drawn process and generating animation files; Support quick hand drawing and fine hand drawing; Support the generation of FLC animation files; (Provide a copy of the whole machine inspection report of the State Administration of Radio and Television with the official seal of the manufacturer)

8. Software requirements for intelligent lyrics production: support intelligent speech recognition and automatic sentence breaking; You can also sing lyrics by hand; Support single-line and double-line lyrics production; Support the export of SRT or TXT files with time code; (Provide a copy of the whole machine inspection report of the State Administration of Radio and Television with the official seal of the manufacturer)

9. Transcoding software requirements: batch conversion of files with 4K and high standard definition format; Support batch conversion of P2/EX/XDCAM/ AVCHD files; Support multi-task and multi-thread parallelism; Support custom task template and task monitoring; (Provide a copy of the whole machine inspection report of the State Administration of Radio and Television with the official seal of the manufacturer)

10. Up to 16 paths of multi-shot switching editing. Multi-shot materials support automatic alignment methods such as audio waveform, time code and marker points, which can quickly adjust the tangent point position, replace shots, and add transitions between shots; The traveling machine materials can be grouped horizontally according to TC time code, which solves the grouping problem of fragmented traveling machine materials in multi-lens editing. (Provide a copy of the whole machine inspection report of the State Administration of Radio and Television with the official seal of the manufacturer)

11. Any two-dimensional objects and characters can be transformed into vector diagrams to realize arbitrary contour shaping; Large paragraphs of text can be automatically soft-wrapped according to the border; Punctuation marks at the starting position are automatically indented; TAB key alignment to solve the problem of multi-column (person list) alignment; (Provide a copy of the whole machine inspection report of the State Administration of Radio and Television with the official seal of the manufacturer)

12. Subtitles support the application of object templates such as timer, bulletin board, curve text, trajectory animation, curve growth and Boolean operation; The embedded subtitle resource library provides rich primitive object templates and title word templates, and users can manage the subtitle resource library by themselves; Support scrolling production that can define the title and text; Support the output of FLC and MOV files with channels; Support step-by-step backup of subtitles, and abnormal exit can restore the final editing state of subtitles; (Provide a copy of the whole machine inspection report of the State Administration of Radio and Television with the official seal of the manufacturer)

13. Support mixed editing with different frame rates, formats and resolutions; Widely compatible with mainstream video and audio formats in professional, civil, network and mobile fields, including the latest media files such as 4K AVC-ULTRA, XAVC and PRORESS, and new media files encoded by H.265; Support real-time up-and-down transformation processing, provide mailbox, trimming, deformation, window and other transformation methods;

14. Support 4K ultra-high definition program production, 3840*2160 or 4096*2160 ultra-high resolution source code editing, 4K ultra-high definition subtitles and special effects production, with a complete 4K native production process from collection, editing, monitoring and output;

15. Support the HDR editing process, and support the editing of HDR materials from different camera manufacturers and standard PQ and HLG materials;

16, support color space management, can identify the color gamut, gamma curve and other metadata information of the material when collecting and importing, and automatically convert it; Support manual setting of matched color gamut and gamma curve; Support the color space setting of software operating environment, echo window, board and file output, and support various color gamut, such as Rec.709, Rec.2020, etc. Support a variety of mainstream camera gamma curves and HDR curves, such as Slog3, LogC, Vlog, C-Log, HLG, PQ, linear, etc.

17. The embedded computer resource window can realize the barrier-free content browsing of disk files and media files, and directly edit them on the track; Free editing of resource files of local, network, mobile and external devices; Support the sharing and interaction of network project resources, public area resources and local project resources to maximize the utilization of resources; Support mobile project editing. Unfinished project projects can be copied and made by mobile hard disk after project collection, or directly built on mobile hard disk for easy taking away. Local projects can be created at any time, and the function of synchronizing local projects to network projects with one key is provided, so as to cope with the safe production of sudden network anomalies and the efficient recovery after network troubleshooting;

18, single key design to achieve efficient editing; Corrugated editing, deleting and moving the material can automatically fill the gap; Add fade-in and fade-out for the material with one key; Set the current material as a static frame with one key; One-key material replacement, keeping the original special effects and duration unchanged; One-button timeline filling, the material used for filling can automatically match the track gap; The upper rail is added, and the selected fragments are arranged on the timeline in turn, so that rough cutting is more efficient; The pen tool can adjust the key points of the curve, and can edit at the same time; Support the overall vertical and horizontal movement of multi-track materials, and make the program modification and adjustment more free;

19. The "Z-clip" specially designed for rough cutting, the material is played, edited and put on the track in one go, effectively coping with the playback of sports highlights; Two-way frame matching, quickly find the specified shot of the storyboard or check the repeated shot of the storyboard; Virtual material editing, simplifying the complex storyboard structure; Storyboards are nested and quoted, and they can be freely edited as a piece of material, so as to quickly realize the series editing of multiple programs; Story board dubbing, you can refer to the video picture to complete the dubbing operation, and the generated audio will be automatically put on the track; Support agent editing mode, edit files with low code, automatically convert low code without low code, and finally output high code; Back up the storyboard operation step by step to ensure that the last operation of the project file can be resumed when an accident occurs; Storyboard version management, users can customize the important status of the backup editing process, and at the same time support the system background regular backup, and can call up the saved editing status at any time when necessary;

20. Provide teleprompter function, with adjustable text size and scrolling speed, which is convenient for storyboard dubbing; Provide a variety of output monitoring methods, in addition to the board output monitoring, support full-screen echo, but also support the auxiliary screen output monitoring of graphics cards to meet the editing and monitoring needs of different users; Provide the transition mode of static frame transition, and process the static frame of the picture at the joint, and fill it forward and back respectively, so as to realize the transition production between two shots in a piece of material;

21, embedded stunt production module; Support the total FX track of storyboard, and the special effects are applied to all tracks; Support FX track in storyboard track, special effects on current track; Support independent KEY track, which can realize key keying of track graphics; Support keying stunts; Support center point tracking stunt; Support fixed-point tracking stunts; Dynamic mosaic supporting infinite hand-painted areas; It has advanced intelligent image tracking technology, which can dynamically track single points and multiple points in the picture, automatically extract the feature points of moving objects, record the motion trajectory, and make the tracking effect more fitting and realistic, and realize the effects of virtual TV wall, text moving with people, dynamic mosaic and so on.

22. Convenient mobile phone video editing, automatically recognizing the gravity induction of mobile phone video and mobile phone pictures, and automatically flipping to present a normal state; Add mobile phone video stunt with one key, and you can freely cut and select the output area; Built-in three-dimensional subtitle production system: support independent CG track of storyboard, and subtitles act on all tracks; Caption production and non-chronological code track are linked in real time, which can accurately produce the animation effect of the appearance and disappearance of graphic subtitles;

23. Caption creation of true 3D scenes, supporting key frame production of 3D objects, cameras and lights in 3D scenes; Any two-dimensional object can be transformed into a three-dimensional object; Support the production of three-dimensional objects and three-dimensional effects such as three-dimensional characters, spheres and cubes; Support subtitle production such as three-dimensional column chart, pie chart and flop animation; Support three-dimensional dynamic texture, light and shadow mapping;

24. Subtitles support stepless zoom and translation in the editing window; Support the editing of zoom, displacement and rotation of the center point of the object, and realize free and flexible graphic creation; Subtitles have the ability to create animation curves, and can draw any motion trajectory through Bezier curves, and attach primitive objects to animation curves to quickly complete animation production; Provide rich special effects of filter, and endow pictures and two-dimensional primitives in subtitles with more powerful expressive force; Support cutting, masking and depth effect processing of pictures and animation files, and support adding filters; Subtitles support full-screen color absorption of color palette, and the color matching of primitive objects is more handy; Support SVG vector map import; Support PSD layered import; Support the import and editing of 3D models; A quick subtitle modification tool, which can quickly modify the text content without entering the subtitle production system; Intelligent voice-free lyrics production subverts the traditional lyrics production process and supports foreign SRT files to be dragged into the storyboard track to directly generate lyrics subtitles;

26, support 5.1 surround sound positioning, can specify any speaker to participate in mixing; Support the overall GAIN adjustment of track audio material, the audio waveform can be changed in real time, and support the accurate adjustment of 0.1dB; Support audio adjustment with sampling point-level accuracy, and provide sampling noise reduction, elimination of popping sound, sound stretching, voice speed change, 10/20/31 EQ and other effects; Preset a sound effect library to provide sound effect materials; Support the unified loudness adjustment of audio tracks and realize the automatic normalization of program audio output;

27. Support GPU and core hardware acceleration when outputting 4K files in H.264 or H.265 format; Compatibility requirements of 4K format: support XAVC, AVC-Intra 4K, AVC-Intra 4K LT, H.264(AVC), H.265(HEVC), ProRes 422, ProRes 422 HQ, DNxHR HQX, DNxHR HQ, DNxHR SQ, DPX, R3D, YUV/RGB 10. Picture sequences in DPX format can be synthesized into files with channel 4K resolution. Support the file output of XAVC, AVC, HEVC, ProRes 422, YUV/RGB 10bit uncompressed 4K Ultra HD format; HDR editing requirements: It can identify the color gamut and gamma curve of different HDR materials such as PQ, HLG and V-Log; You can fill in the gamma curve and color space manually; The running color gamut can be switched between BT.601, BT.709, BT.2020, etc. Supports curve types including PQ, HLG, S-Log3, V-Log, C-Log, LogC, etc. Supports the output of files with HDR curve types such as PQ, HLG and S-Log3; When editing in 4K HDR, the software echo window can be echoed in BT.709 mode; Support the customization of the running environment,Including rendering processing parameters, echo, board, color gamut, curve, output and other settings; Compatibility requirements of high-definition format: support for editing files in MPEG-2 I/IBP format, and support for editing MPEG-2 I frame files with 100Mb/s, 200Mb/s and 300Mb/s bit rates; Support editing files in H.264 encoding format; Support signal acquisition and editing files in DVCPRO (DV25/DV50)/DVCPRO HD (DVHD) format, and also package and output files in this format; Support the editing of dvcpro (dv25/dv50)/dvcprohd (dvhd) format files; Support to collect signals into files in XDCAM HD format, or package and output files in this format; Support editing files in XDCAM HD encoding format; Support signal acquisition into AVC-IntraHD format files, and also package and output files in this format; Support editing files in AVC-IntraHD encoding format; Support to collect signals into files in DVSD/HDV format, or package and output files in this format; Support editing files in DVSD/HDV encoding format; Support to collect signals into files encapsulated by Mpeg4-4, and also package and output files in this format; Support editing files in Mpeg4-4 encoding format; Support editing files in AVCHD encoding format; Support editing files in XAVC encoding format; Support signal acquisition and editing WMV-encapsulated files,You can also package and output files in this format; Support signal acquisition and editing MOV-encapsulated files, and also package and output files in this format; Support signal acquisition and editing TS-encapsulated files, and also package and output files in this format; Support signal acquisition and editing files in uncompressed 8-bit HD format, and also package and output files in this format; Supports the generation of 32-bit picture sequences with Alpha channels, and can choose frame mode or field mode; Support editing files encoded by Apple ProRes 422;

28. Technical review requirements: The whole machine supports the technical inspection of black field, blue background, green background, high-standard clear color bar and still frame in the program on the story board; Support for judging whether the YUV index in the program on the storyboard exceeds the standard, and you can define the threshold range of each element of Y/U/V, the time threshold of abnormality, the detection range and the fault tolerance; Support whether the RGB index in the program on the storyboard exceeds the standard, and define the threshold range of each element of R/G/B, the time threshold of abnormality, the detection range and the fault tolerance; Support to determine whether the YC index in the program on the storyboard exceeds the standard, and define the detection time threshold, detection range, fault tolerance and the threshold of YC elements; Support whether the brightness index in the program on the storyboard exceeds the standard, and define the detection time threshold, detection range and brightness threshold; Support the detection of snowflake field in the program on the storyboard, and define the detection time frame number and error threshold; Support the detection of frame clipping in the program on the storyboard, and define the time threshold of frame clipping problem; It supports the detection of the flower screen in the program on the storyboard, and can define the time threshold, error and fault tolerance of the flower screen; Support the detection of stereo phase in the program on the storyboard, and define the time threshold and phase difference percentage of the problem; Support the detection of mute, VU or peak value exceeding the standard in the program on the storyboard, and define the time threshold and DB threshold of the problem; Support the detection of level deviation in the program on the storyboard, and define the time threshold and deviation percentage of the problem;It supports the detection of loudness in the program on the storyboard, and can define the short time, short-time loudness and average loudness of loudness detection; Support the detection of clipping in the program on the storyboard, and define the time threshold of clipping and the percentage of clipping;

29, bulletin board production software requirements: support for the entire paragraph of text according to the size of the border automatic folding and split screen; Support the indentation of the first line punctuation; Can make in, out and stay animation stunts for each screen subtitle; Support the output of CG, FLC animation or MOV and AVI files with channels;

30. It has 4K/HD/SD 12G SDI signal input and output interface and 4K HDMI signal input and output interface; Input and output interfaces of analog component signals with HD and SD; With HDR high dynamic and BT.2020 wide color gamut signal output; The output channel supports the simultaneous output of the same signal with two SDI digital interfaces, and the second channel supports the down-conversion function, that is, the UHD and HD signals are simultaneously output, or the HD and SD signals are simultaneously output;

31. When bidding, it is required to provide ISO 9001 quality management system certification and ISO 14001_2015 environmental management system certification passed by the invested product manufacturer. The scope of certification: R&D, production and sales of radio and television equipment (including nonlinear editing system);

32. The manufacturer has the software copyright certificate of the invested product, the whole machine of the ultra-high definition post-production system has the test report issued by the State Administration of Radio, Film and Television, and the whole machine has the national compulsory product certification certificate (3C). All copies of test reports and certificates must be stamped with the official seal of the original manufacturer, otherwise it will be deemed invalid.

33. Bidders shall provide relevant certification materials such as test reports or color pages for supporting the above bidding parameters and affix the official seal of the manufacturer;Letter of commitment for after-sales service of the whole machine provided by the manufacturerCopy stamped with official seal; The production date of the product shall not exceed 6 months from the acceptance date.

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A landmark building will be added in Kaifeng, Henan Province, which is a "super brain" in the field of architectural design.

  Cctv news Recently, an international solicitation review meeting was held for the architectural design scheme of the Kaifeng Pilot Free Trade Zone International Cultural and Art Exchange Center. The review meeting set up the main venue in Zhengzhou, Henan Province and the Kaifeng sub-venue, and gathered with academicians and experts in the "cloud" through online and offline combination to offer suggestions and suggestions for the architectural design scheme of the Kaifeng International Cultural and Art Exchange Center.

  Kaifeng Pilot Free Trade Zone International Cultural and Artistic Trade Center Project is located in Kaifeng City’s urban-rural integration demonstration zone, in the core area of Free Trade Zone and Comprehensive Insurance Zone, with a total land area of 2.34 hectares (35.1 mu) and a total construction area of about 30,000 square meters. Upon completion, it will become the fifth international art trading center in China and the first in Central Plains, and it will also become a new landmark of Central Plains culture.

  The international solicitation of this scheme has brought together "super brain" in the field of architectural design at home and abroad, and selected the best scheme through evaluation, and made overall efforts to promote the high-starting precision design and high-standard exquisite construction of Kaifeng International Cultural and Art Exchange Center, and strive to create a cultural landmark building in Kaifeng. "We use international solicitation and an open and enlightened attitude to show the new image of Kaifeng, the ancient capital. It took the five teams just over 40 days to come up with their ideas and designs, which reflected their profound knowledge. " Liu Zhen, deputy mayor of Kaifeng, said in his speech.

  This review meeting brought together four academicians from the review team and design unit, as well as a number of national engineering survey and design masters and industry experts to discuss the design scheme. The judging experts listened in detail to the scheme reports of five design units (consortia), namely, Academician Cheng Taining of Zhonglian Zhujing, Academician He Jingtang of South China Institute of Technology, Master Zhang Lingling of shenyang jianzhu university Tianzuo Research Institute, Isozaki Shin+Hu Qian Studio and French VP Company. After careful evaluation and full discussion on the design scheme, three winning units (consortia) were recommended after voting.

  In the next step, according to the evaluation opinions of various design schemes, the organizer will finally determine the selected unit after consulting the suggestions of relevant departments extensively and being approved by relevant meetings.

Online celebrity cars also have a hard power of 439,900 for sale.

In terms of appearance, the 2020 BMW 530le is consistent with the gasoline version on sale, and the body still adopts the BMW family design. The kidney-shaped air intake grille on the front of the car is blackened, which is particularly sharp with the angel eye headlights on both sides. The waistline on the side is relatively straight, and it looks more exquisite with the double five wheels. In the rear part, the new car adopts a through taillight design, which is highly recognizable after lighting. In addition, the new car adopts a bilateral single exhaust layout, which looks sporty as a whole.

There is no more news about the interior. It is expected that the design style of the current model will be continued, and the configuration will be upgraded. For example, the new model will come standard with a driver’s assistance package, and four colors including Brazilian brown, platinum silver, Burgundy red and Hucaro beige will be cancelled. The new car will be able to correspond to four interior colors such as pure black, brown black and light gray.

The length, width and height are 5175×1900×1520mm respectively, and the wheelbase has reached 3105 mm. In the same class, the wheelbase of BMW 5 Series ranks fourth. This size exceeds most models in its class. The actual interior space performance is also very good. From the actual ride experience, the front and rear rows are relatively spacious. The skylight of BMW 5 Series 530Li exclusive luxury suit provides a wider view, which can create a better visual environment and good sensitivity for the rear passengers and increase the light intake for the whole vehicle. Among the models of the same price and class, the trunk volume of BMW 5 Series ranks 26th. The space is relatively regular, without obvious protrusions, and the overall loading capacity is good.

The BMW 5 Series is equipped with a 2.0 engine with a maximum output of 190kW and a maximum torque of 400Nm. It will definitely bring unforgettable control charm. The official measured acceleration of BMW 5 Series is 6.5S, ranking 27th among the medium and large-sized vehicles with more than 800,000.

The active/passive safety configuration of BMW 5 Series is complete, includingAutomatic parkingZero tire pressure endurance tireAutomatic parkingSteep slope descenthill start assist controlknee airbagHUD head-up displayAnti-lock braking (ABS)Braking force distribution (EBD/CBC, etc.)Brake assist (EBA/BAS, etc.)Traction control (ASR/TCS, etc.)Active noise reductionEngine start and stopSide safety air curtainWireless charging of mobile phonenight vision systemLED daytime running lightsForward reversing radarTire pressure monitoringSteering wheel heatingBody stability control (ESP/DSC, etc.)Rear reversing radarFatigue reminderRemote parkingChild seat interfaceLane keeping (LKAS)Equal configuration.

Among them,Automatic parkingYou can avoid stepping on the brakes for a long time or needing to pull frequently;Steep slope descentCan safely pass through steep slope road conditions at low speed;knee airbagReduce the injury of the car interior to the occupant’s knees in the secondary collision.

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