Cradle of the New Generation Aircraft! JF-22 Ultra High Speed Wind Tunnel has passed acceptance and can reproduce flight conditions at 30 times sound speed

Cradle of the New Generation Aircraft! JF-22 Ultra High Speed Wind Tunnel has passed acceptance and can reproduce flight conditions at 30 times sound speed

In the development process of various types of aircraft, a large number of simulation flight experiments are required, but it is impossible to actually frequently test fly the aircraft in the sky. Therefore, wind tunnels have emerged, which is equivalent to artificially building a "flying sky" on the ground and is an essential large-scale aerodynamic experimental device for developing aircraft...

Latest App User Count Exceeds 100 Million Time consuming Ranking: WeChat Has Not Even Ranked in the Top Three

Latest App User Count Exceeds 100 Million Time consuming Ranking: WeChat Has Not Even Ranked in the Top Three

Recently, Mobile China noticed that relevant institutions have created a ranking list based on the time when the number of users of major apps has exceeded 100 million. It is worth noting that before 2022, the first APP on this list should be TikTok, the overseas version of Tiktok...

Scientists have discovered that increasing efficiency in the food system can effectively support China's carbon neutrality

Scientists have discovered that increasing efficiency in the food system can effectively support China's carbon neutrality

Technology Frontiers Guangming Daily, July 15, Beijing (reporter Jin Haotian)The Dai Hancheng research group and collaborators of the School of Environmental Science and Engineering at Peking University have recently found that increasing efficiency in the food system can effectively support China's achievement of the 2060 carbon neutrality target. Biomass energy is an important alternative means for China to achieve carbon neutrality, and China needs to combine various measures such as moderately relaxing food trade, increasing crop yield, reducing food waste, and shifting towards a healthy diet to build an efficient food system that is in line with its national conditions...

JD Jingzao Becomes a Deep Cooperative Brand of Yanxi Big Model

JD Jingzao Becomes a Deep Cooperative Brand of Yanxi Big Model

On July 13th, the JD Yanxi Big Model was launched at the 2023 JD Global Technology Explorer Conference and JD Cloud Summit. Compared with the universal big model, this big model integrates 70% universal data and 30% digital intelligence supply chain native data, and has the advantages of "higher industrial attributes, stronger generalization ability, and more security guarantees"...

The account of the

The account of the "Provincial Government Office" sent indecent information, and the group building unit: virus invasion, has been reported!

In our daily lives, WeChat has become an important tool for communication and exchange. However, a recent incident involving the release of indecent information on the WeChat group of the Hunan Provincial Government Office has given us a new understanding of the issue of network security...

Did you only realize that the business class seat was occupied by the crew during the flight? Entrepreneur bombards Air China, Lawyer: Violation of Contract Law

Did you only realize that the business class seat was occupied by the crew during the flight? Entrepreneur bombards Air China, Lawyer: Violation of Contract Law

On July 14, Mr. Liu, an entrepreneur, sent a video saying that when he checked in on July 12, he was informed that the A2533 business class seat of Air China purchased several days ago was occupied by the crew...

The boss has stockpiled a batch of tape recorders to make a big profit. I spent 80 yuan on one and came back to play. Don't you know if it's worth it

The boss has stockpiled a batch of tape recorders to make a big profit. I spent 80 yuan on one and came back to play. Don't you know if it's worth it

It is estimated that many young people have not used the product of a recorder, and some have not even seen it, without knowing what it is.Cassette recorders were once extremely popular from the 1980s to around 2000...

Zhihu's 2023 New Knowledge Youth Conference opens, and Zhou Yuan confesses that the new hires

Zhihu's 2023 New Knowledge Youth Conference opens, and Zhou Yuan confesses that the new hires "we all care"

From July 14th to July 16th, the 2023 New Knowledge Youth Conference of the Zhihu Annual Carnival was held in Beijing's 751 Park, with the theme of "Building the Sea". Zhihu joins hands with New Knowledge Answers to embark on an intellectual "surfing", witnessing the radiance of new knowledge for every new employee...

The garbage thrown by Chinese people has become the treasure of Africans, and the more they pick up, the more respected they become

The garbage thrown by Chinese people has become the treasure of Africans, and the more they pick up, the more respected they become

With the process and development of urbanization, more and more people are flocking to big cities, striving to find a job in them. But the increasing population in big cities has also led to a problem, which is the continuous increase in garbage in big cities...

To ensure the sustainable northward movement of

To ensure the sustainable northward movement of "Yihong Clear Water", the geological survey team of the Provincial Coal Field Geological Bureau will fully serve the ecological protection construction of the Nansihu Lake Basin

In order to ensure that "a clear water flows northward continuously", the physical survey team of the Coal Field Geology Bureau of Shandong Province, a geological environment party branch, took the initiative to take the initiative to undertake the "1:50000 multiple ecological Geological survey and evaluation project in the Nansihu Lake area of Shandong Province", and went all out to help build the ecological protection pattern of "one core, one screen, two belts, three zones and multiple corridors" in the Nansihu Lake basin, becoming the geological pioneer of ecological protection in the Nansihu Lake area.Leading the Party Building and Aggregating Forces to Take on Heavy TasksThe geological environment party branch of the team is a young Economic entity, which has been established for less than four years, and the average age of the staff is less than 35 years old...

AL2O3@SiO2 Effect of adding core-shell nanospheres on the dielectric and space charge properties of polypropylene

AL2O3@SiO2 Effect of adding core-shell nanospheres on the dielectric and space charge properties of polypropylene

Before reading this article, please click on "Follow" to make it easy for you to review a series of high-quality articles from previous issues at any time, and to facilitate discussion and sharing. Thank you very much for your support!Wen|AfangEdit|AfangintroductionPolypropylene (PP), as a thermoplastic material with the characteristics of environmental friendliness, recyclability, and high melting temperature, has become the most potential material to replace existing DC cable insulation...

Nine years ago, Dong Mingzhu angrily scolded the master of Peking University who went to sell Rice noodles. How was his life then?

Nine years ago, Dong Mingzhu angrily scolded the master of Peking University who went to sell Rice noodles. How was his life then?

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