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The key bottleneck restricting the development of advanced equipment is to meet the requirements of advanced resin composite materials with high strength, high temperature resistance and light weight. At present, such a difficult problem is expected to be solved. The reporter learned from East China University of Science and Technology that the first domestic polymer material genome research and development platform (AI plus polymer software platform) developed by Professor Lin Jiaping’s team was recently released in Shanghai.

The software is called "polymer version of ChatGPT", which contains the first database of resin structure and properties and chemical reaction between groups in China. Users only need to input the resin structure, they can quickly obtain its mechanical, thermal and dielectric properties, and can also make performance prediction and high-throughput screening through this software, so as to develop high-performance polymers and their composites with faster efficiency and lower cost.

"The research and development of new materials has entered the era of intelligent manufacturing from the era of trial and error of scientists." Lin Jiaping introduced that in the past, it often took 2-3 years or even longer for a new material to go from design, experiment to productization. Now, relying on this "polymer virtual laboratory", R&D personnel can find the optimal solution of structural design and formula optimization only through 2-3 iterations, and the experimental time is greatly reduced. The team will join hands with the industry to promote the development of AI plus polymer research paradigm to the whole industry chain.

Powerful database and forecasting system lead the industry.

What are the highlights of the AI plus polymer software platform? Lin Jiaping introduced that as an important achievement in the cross field of AI and digital technology and polymer materials, a powerful database is an important support of the platform and can be described as the cornerstone of material genetic engineering. The first database of resin structure and properties and chemical reaction between groups established by the team in China contains nearly 150,000 performance data of more than 34,000 polymers and nearly 1.4 million chemical reaction data of 58,516 basic reaction templates.

It is worth mentioning that these data mainly rely on dozens of graduate students and undergraduates in the past three years, especially during the epidemic, to standardize, enter and store them one by one. Based on the database, the team created a machine learning prediction model for more than ten properties of polymers, and built a research and development platform for polymer materials genome, which has multiple functions such as data retrieval, performance prediction and formula optimization.

The reporter saw in the team’s live demonstration that when users use the AI plus polymer software platform to predict the performance of polymer materials, they only need to click "Draw Structure" first, input the drawn strings of epoxy resin and curing agent into the corresponding input boxes, and then click "Start Prediction". After a few seconds, the page will return to the performance prediction data of epoxy resin calculated in the background.

So, how does this software compare with foreign counterparts? For example, Gao Liang, one of the team members and a special researcher at East China University of Science and Technology, has similar software in the United States and Japan. However, in terms of database richness, prediction accuracy and functional diversity, AI plus polymer software platform is superior. "Our goal is to seize the opportunity of digital and artificial intelligence to change the new material industry, develop high-performance polymers and their composites with faster efficiency and lower cost, and realize the original innovation and intelligent manufacturing of polymer materials." Gao Liang said.

The research and development of new materials has entered the era of "intelligent manufacturing" from the era of experience "trial and error"

The development of AI plus polymer software platform can be described as a sword after ten years. It is reported that since 2011, Lin Jiaping’s team has seized the frontier field of material research-material genetic engineering to start related work.

With the cooperation of gene combination screening and AI tools, the team developed a series of advanced composite matrix resins. For example, the curing temperature is less than 300℃, the 5% thermal decomposition temperature is more than 650℃, and the glass transition temperature is more than 600℃. For another example, a new type of high-temperature resistant and high-toughness poly (alkynyl imide) resin is superior to polyimide in processability, heat resistance and interface properties, and its mechanical properties are equivalent to polyimide. Related new resins have been evaluated by many aerospace institutes for the performance of composite materials and components.

"The AI plus polymer software platform is like a polymer virtual laboratory. The virtual design of the platform and the method of high-throughput prediction will greatly improve the research and development efficiency." Lin Jiaping introduced that at present, the platform has been tried in more than ten enterprises such as Shanghai Huayi Group Resin Factory, Shanghai Aerospace Eighth Institute, Jinfei Carbon Fiber Technology and Jinshan Petrochemical Institute, and will be used to the public.

Author: Wu Jinjiao

Editor: Chu Shuting

Editor in charge: Fan Liping

Photo: East China University of Science and Technology

* The exclusive manuscript of Wenhui, please indicate the source.

Since the start of CBA, the hit rate of national players in men’s basketball team is at a glance. Who is the most embarrassed?
Hu Mingxuan, 25.0% and 0%, with 2.0 points;
Guo Ailun, 26.7% and 15.4%, with 16.0 points;
Sun Minghui, 26.7% and 17.6%, with 14.0 points;
Zhai Xiaochuan, 29.4% and 40.0%, with 8.0 points;
Lu Wenbo, 30.8% and 22.2%, with 5.0 points;
Zhu Junlong, 35.0% and 16.7%, with 9.0 points;
Ren Junwei, 40.0% and 20.0%, with 7.5 points;
Fu Hao, 43.8%, with 9.5 points;
Jeff, 46.2% and 30.0%, with 16.0 points;
Gu Quan, 47.1% and 36.4%, with 10.0 points;
Jiang Weize, 48.1% and 46.7%, with 18.0 points;
Yi Jianlian, 50.0% and 50.0%, with 11.0 points;
Wang Zhelin, 52.9% and 50.0%, with 20.5 points;
He Xining, 55.0% and 66.7%, with 15.0 points;
Zhao Rui, 60.0% and 50.0%, with 15.0 points;
Shen Zijie, 71.4%, with 10.5 points.

I believe that the low hit rate is only temporary, and hard-working fans can see it. Come on, everyone!

Netizen: National team players should be given more support and encouragement. They play for their country during the off-season. No matter what the result is, they have to face the influence of fatigue, injury and epidemic infection, and they have not systematically prepared for war with their respective teams. However, they are all the best players in China, and they will recover to their best level after several matches. Come on!

Netizen: Just looking at each person’s score when playing ball can’t explain his ability. Some of them rarely throw LAN but specialize in assists. Because he is too defensive to throw, he scores less. Just as a volleyball free man specializes in receiving and making fewer mistakes, can he say that he doesn’t score?

Netizen: After watching these national players, we understand a truth. The men’s basketball players in China have inherited the mantle of men’s football, and step by step they have slipped into the abyss of being spurned by Chinese people. Look at the women’s basketball team. Have a good reflection.

Original title: Shanghai Shuren crossed the sea and play! Seeing this scene, and you play, he was scared to the police!

Men dressed into the sea, unexpectedly the sea of ??tide! He could not move directly on the stone! What is even more dangerous is the fluent water of men! Fortunately, the rescue team arrived.

At about 13:00 on August 29, the Fire Rescue Brigade of the Pudong New Area Diaoshuihu Fire Rescue Station received an alarm and said,In the waters near Nanhuizui Park, a person crosses the sea to prevent the flood dam, and the ocean will rise rapidly because the stones trapped in the flood.After receiving the report, the fire rescue staff rushed to the scene to carry out rescue.

After arriving at the scene, I found fire rescue workersAt this time, the tide of tide is extremely rapid. Who does not understand the water because of the trapped man, in order to prevent being involved in the wavy in the sea,On -site commanders immediately assigned a group of experienced underwater rescue teams to allow personal protection measures, paddle methods, planned to be trapped in advance, soothe their emotions, and see its state.After wearing a life jacket, the two players guided the trapped men to stun the paddle board, and the left and right sides of the slurry.Essence However, since the storm, in order to ensure absolute safety, the two team members have to slow down the beach.

(It has nothing to do with the figure)

Soon, the assault ship had been transported to the beach. Immediately, another group of fire rescue workers drove the fence and quickly drove to the difficult people. After two groups of consecutive words, the fire rescue personnel transferred the trapped personnel to the impression, and it quickly transported it to the shore.

Finally, it does not need 10 minutes. The trapped person successfully rescued. It is reported that the trapped person was not injured due to timely rescue. Return to sohu, see more

edit:

"China Economic Week" chief commentator button

The latest news from Europe 5G communications is: 11 company CEOs, including German telecommunications, Vodafone and other European telecommunications companies, jointly vocal, they said: 5G construction cost is too expensive. They said: Large-scale technology companies have used a lot of traffic, which has been gains, but now the network cost is too expensive, so these scientific giant industries must pay some profit subsidies.

According to reports, after the United States, the US has begun to sell its own 5G network after the 5G technology of China Huawei. At the same time, "spectrum auction" as a shake money tree, and for this "use rights", each telecom company needs to pay 5-20 each year Billion dollar costs. However, now these telecommunications companies have begun "rebellion", requiring the US Science and Technology Giants to take part of the cost of European telecommunications networks.

Record 2018, the British Maogan announced the ban on Huawei, then Australia, Canada, New Zealand, Germany, France, Japan, South Korea, India, etc. Before Trump drove, Huawei’s family is not a bamboo to his 5G technology chest, thinking that Europe will not follow the United States to ban Huawei 5G technology, why? Because the world can meet the cost requirements of 5G commercial use.

Here is a technical problem, these countries can refuse Huawei equipment, but they cannot refuse Huawei patents, and to listen to the United States, give up Huawei equipment, it is necessary to pay technical patents to Huawei. Moreover, Huawei’s 5G network standard patent is basically basic and Qualcomm flat. Therefore, Europe may be taken to the ditch by the United States. But two or three years, "Report" is coming. The European large communications companies can not support the cost of distortion.

Also in 2018 to 2021, many big cities in China, as long as you have 5G mobile phones in your hand, almost no obstacles have no burden use 5G signals. Moreover, after the introduction of the first 5G mobile phone in 2019, the major mobile phone manufacturers have no longer release 4G mobile phones, no matter which level of mobile phones, medium, low, is 5G mobile phones.

What exhages China’s 5G network construction has developed? According to the information released by the Ministry of Industry and Information Technology, China has built 5G base station, more than 1150,000; almost all prefecture-level urban areas, and more than 97% of county urban and 40% township areas have achieved 5G network coverage. The number of all end users is 450 million. Is this a concept? According to statistics from well-known research institutions, the current global 5G base station is only 1.65 million, which means that China’s 50% of the global 5G base station accounts for more than 80% of 5G end users.

According to the "14th Five-Year Plan" planning, by 2023, the number of 5G base stations built in China will reach more than 2.5 million, 3.6 million in 2025, and 5G user penetration rate will reach around 60%. It can be seen, a big step in two years. This is also the key to China’s intelligent terminals, smart cars, etc.

According to reports, the reception of China’s 5G network construction is the efforts of three operators and 5G suppliers, but the main hero behind is Huawei. Huawei not only masters a lot of 5G patents, but also the only supplier of "5G-to-end technology" solution. Why can Huawei provide "5G-to-end technology" solution? Because Huawei’s product line is very rich, from wireless to wired, from access, exchange, data, transfer to the server, from hardware to software, Huawei has its own product. It is unfortunate that Huawei has been blocked in the international market, and abandoned Huawei countries, and its 5G orders were divided by Ericsson and Nokina. However, now they have begun to taste expensive tastes.

British soldiers will start driving tankers to replenish empty pumps, as drivers queued again for fuel after days of shortages, despite Prime Minister Boris Johnson saying the situation was improving.

Britain has been gripped by a rush of panic-buying for almost a week that has left pumps dry across major cities, after oil companies warned they did not have enough tanker drivers to move petrol and diesel from refineries to filling stations.

Business minister Kwasi Kwarteng said 150 soldiers had been mobilised, and would be driving tankers within a few days.

“The last few days have been difficult, we’ve seen large queues. But I think the situation is stabilising, we’re getting petrol into the forecourts. I think we’re going to see our way through this,” Kwarteng said.

Johnson has sought to quell concerns, saying supplies were returning to normal while also urging people not to panic buy.

A shortage of around 100,000 drivers has sown chaos through supply chains and raised the spectre of empty shelves and price increases at Christmas.