Yu Yixin, a 79-year-old professor at Tianjin University, is still full of energy and articulate when talking about his own power grid technology. Head of the first-class discipline of electrical engineering, national expert in power system analysis, planning and simulation.

From power system stability research, urban power grid optimization planning to urban smart grid construction. In the field of power system research, Professor Yu Yixin has made unremitting efforts to climb the peak, achieved international leading academic achievements, and created huge economic benefits for the society.

"1958 When we graduated from university, our slogan was' Work for the health of the motherland for 50 years!' Now I have realized this wish. But I am still young, and I will work for the health of my motherland for another 20 years. "On the road of scientific research, he always seems to have inexhaustible energy.

2, after 90 "small fresh"

Zhu Xinli, born in 1992, is the youngest model worker to be commended this time. She is really "small and fresh". Plain face and plain clothes ... Zhu Xinli, a worker of Samsung Hi-Tech Electric (Tianjin) Co., Ltd., still looks like a child at school. In fact, in two months, she will have been working for six years. On the production line, she is already an old class leader.

She told me that her work goal is simple: let the operators work according to the standards and avoid the outflow of unqualified products. But behind this, in fact, you need to pay a lot, rigor, perseverance and hard work ... These words are used on this post-90 s girl, which is a realistic portrayal of her works.

Zhu Xinli said that she didn't do anything earth-shattering, but did her duty. Like many migrant workers' brothers and sisters on the production line, she came to the city to find her own value. "If I hadn't left my hometown, I might not have to work so hard, but I found my value in my daily work."

3. Space dream on "welding"

In China Academy of Launch Vehicle Technology, there is a welder's "legendary" highland that nobody cares about and is widely circulated.

In 2006, the antimatter detector project involving 16 countries was in trouble because of a manufacturing problem. At a loss, Professor Ding Zhaozhong, the Nobel Prize winner, invited an aerospace "expert". After seeing the design scheme and components on the spot, the "expert" put forward the manufacturing scheme the next day. Two months later, the plan was approved by NASA.

This "expert" is Gao Fenglin, head of the engine workshop of No.211Factory of the First Research Institute of China Aerospace Science and Technology Corporation.

The welding of large nozzle of spiral tube bundle of rocket engine is the key technology of a few space powers, which once became the bottleneck of the development of launch vehicle in China. A little carelessness in welding will cause millions of dollars in economic losses. Gao Fenglin "was ordered at a critical moment". In order to complete the task, he often keeps a welding posture, and one welding is 1 hour. After 30 days and nights of tackling key problems, he completed nearly a kilometer of weld processing.

Over the years, Gao Fenglin has been climbing the peak of "welding highland" in the missions of Long March 5 high thrust rocket, Beidou navigation, lunar exploration project and manned spaceflight project.

4. Dare to "catch turtles" in the five oceans

7062m-the maximum dive depth of China manned submersible Jiaolong in sea trial, and also the deepest dive record of similar manned submersible in the world. The main technical leader who created this record is Hu Zheng, director and researcher of the Underwater Engineering Research Office of the 702nd Research Institute of China Shipbuilding Industry Corporation.

Hu Zheng is the deputy chief designer of Jiaolong. Together with the team members, he organized and implemented the technical design and test of manned submersible without learning from the overall design. The overall integration technical scheme of 7000-meter manned submersible and the debugging method of land and pool are put forward. The research and development of Jiaolong manned submersible shows that China has mastered the core competence of independent design, integration and innovation of deep-sea manned submersible.

"Dare to catch turtles in five oceans." Now, he leads the team in new research and development, and serves as the chief designer of the 4,500-meter manned submersible. Compared with Jiaolong, the new submersible has better performance, higher reliability and economy.

5. Farmers' "Wheat God"

Ru Zhengang, with many auras on his head, still works in the fields all day as usual, just like an old farmer who cultivates land. "Let science and technology go to production and play a leading role in production." He said.

Ru Zhengang is the chief expert of wheat disease and pest resistance breeding in Henan Province and a professor at Henan Institute of Science and Technology. "When I was a child, I almost didn't have enough to eat. It was my dream to let the people have enough food and clothing." For more than 20 years, Ru Zhengang led the scientific research team to cultivate and popularize a series of high-yield and high-quality wheat varieties, such as "Bainong 62" and "Bainong Ai Kang 58", which produced great economic benefits.

By the summer harvest of 20 14, "Ai Kang 58" has been the dominant wheat variety in China for six years in a row, with a cumulative planting of more than 230 million mu and an increase of1071000,000 kg, which is known as "the first wheat in Huanghuai". Therefore, it is also affectionately called "wheat god" and "grain god of wealth" by farmers.

Compared with conventional varieties, hybrid wheat can generally increase yield by 15% ~ 30%, which is an important way to comprehensively improve the comprehensive production capacity of wheat, and its significance is the same as that of hybrid rice in China. Ru Zhengang led the team to create a low-temperature sensitive male sterile transformation line BNS, which will achieve the goal of increasing the average yield per mu of wheat by 200 kg to 400 kg.

People's Network-the "most" inventory of model workers