"It is necessary to take a new road and difficult road to engage in scientific research."

Xinhuanet, Beijing, July 29 (Reporter Wei Mengjia) In the School of Engineering, Peking University, a scholar faces experimental devices and thinks about a question: how to choose a refrigerant to make the Olympic venue's ice process more environmentally friendly and efficient.

In 2017, Professor Zhang Xinrong was invited to develop carbon dioxide cross -critical refrigeration systems for the Winter Olympics. At that time, the most advanced technology in the world could only be applied to an ice rink of 1800 square meters, and the national speed skating hall was expected to build a nearly 7 times large ice rink.

"It is necessary to take a new road and difficult road to engage in scientific research." After designing, testing, and adjustment, Zhang Xinrong led the team to over hundreds of day and night cycles. Finally, the "ice ribbon" of the Beijing 2022 Winter Olympics achieved the first use of carbon dioxide as a refrigerant in the history of the Centennial Olympics. This technology has increased the efficiency of ice -making efficiency by 30%, which can save about 2 million times a year, and also make the "ice ribbon" a bright business card for the "Green Winter Olympics".

Professor Zhang Xinrong guides the carbon dioxide ice -making unit cross -critical operation at the National Speed ​​Skating Pavilion (Photo Conferring in Peking University)

On the occasion of the 14th Party Congress of Peking University, the reporter learned that in the past 5 years, the school has focused on major national needs, integrating the direction and layout of scientific research and research, focusing on the establishment of high -level scientific research teams, and actively undertaking national scientific research projects. Support major original innovation and promote the transformation of achievements, and provides support for the development of national science and technology.

Data show that in the past five years, Peking University has approved 134 key special projects for key research and development plans, and has obtained 3497 National Natural Science Foundation Projects and 258 National Social Science Fund Projects. As the first completion unit, it has won the National Science and Technology Award 18 item. In the National "Thirteenth Five -Year Plan" scientific and technological innovation achievement exhibition, more than 20 results of Peking University were selected, covering all aspects such as basic research, high -tech, people's health, and social development.

"Digital video codec", "carbon -based chip", "Future Gene Diagnosis", "Microcarbon Micro Image", "Laser Accelerator", "New Generation Stem Cell Technology", "Clinical Prevention of Acute renal failure" ... aiming at major national needs, a group Major original innovation achievements and leading technologies have continued to emerge, providing support for the development of many countries.

Professor Deng Hongkui (third from left) led by Peking University (third from left) (Figures of Peking University)

For example, Professor Yan Xueqing's team of the School of Physics has built the world's first ultra -small laser accelerator radiation device, from the construction of the prototype to the establishment of the first laser accelerator, all of which have been completed by domestic independent completion; The application of the key technologies of Kenan Code and decoding provides a technical foundation for the leapfrog development of the national video industry, and the industry scale is nearly 100 billion yuan. The development solves the "bottleneck" problem of the underlying technology ...

After many years of research, the team of Academician Qiao Jie, Academician Xie Xiaoliang, and Professor Tang Fuxi for the first time in the world created a new method of new embryos with a newer new embryo in bed in front of bed and successful application. The major reproductive health problem in my country ’s“ birth defect ”brought the hope of breeding a healthy life for millions of birth defects in my country each year.

For nearly 20 years, the team led by Academician Peng Lian Spear at the School of Information Science and Technology has completely developed a set of non -doped new technologies of carbon tube CMOS integrated circuits and optoelectronic components, approaching the theoretical limit, and successively realized the world's first first 5 High -performance carbon tube crystal tube and the first Gigabithz carbon nanoma integrated circuit. The next goal of the team focuses on the industrialization and completes the development of 90 nanometer carbon -based CMOS pilot technology.

The output of scientific achievements is inseparable from the convergence of resources and the support of the platform. In the past five years, Peking University has optimized discipline layout and has carried out research in major urgent needles such as "brain science and brain -like research", "quantum communication and quantum computers", "new generation of artificial intelligence". In the future, a number of new institutions such as the School of Technology, the School of Materials Science and Engineering have also been established.

Peking University Establishment Integrated Circuit College (Figures of Peking University)

Major original innovation results are often produced in the cross -disciplinary field. In recent years, Peking University has focused on promoting cross -integration of disciplines, focusing on the layout and construction of "clinical medicine+X", "carbon neutral science and technology", "digital intelligence+" and other cutting -edge interdisciplinary fields. A number of interdisciplinary research institutions such as the Electronic Research Center, the Energy Research Institute, the Big Data Research Institute, and the International Machine Learning Center.

Xie Bing, Minister of the Research Department of Peking University, introduced that in recent years, Peking University has established and improved organizational research mechanisms to form a systematic and multi -level innovation platform, accelerate the construction of major scientific facilities, and In the fields of dental medicine and other fields, 11 national platforms are newly identified to promote the reorganization of national key laboratories and complete physical construction.

As of now, the school has established 37 national scientific research and innovation bases, 120 provincial and ministerial key laboratories and engineering centers, and 8 school -level large -scale instruments and equipment public platforms have been built to provide strong support for the innovation breakthrough in key areas.

In Beijing Huairou Science City, the "Thirteenth Five -Year Plan" national major scientific and technological infrastructure and total investment of more than 1.7 billion yuan of multimodal -scale biomedical imaging facilities built by Peking University as a legal person unit, the construction of infrastructure construction of multimodalized cross -scale biomedical imaging facilities will be completed this year. In the future, the large scientific engineering project in the field of biomedical imaging will carry out cross -scale visual depiction and accurate measurement of the structure and functions of life, in order to crack the mystery of life and disease. Multi -mode cross -scale biomedical imaging facilities (Figures of Peking University)

In addition, Peking University has also established a number of new scientific research institutions such as Peking University's Long Triangle Optoelectronics Research Institute, Peking University Information Technology Higher Research Institute, Peking University Chongqing Big Data Research Institute, and Peking University Modern Agricultural Research Institute. In the past five years, the transformation of scientific and technological achievements has been solidly advanced, with a cumulative signing of 2,843 technical contracts, with a cumulative contract value of 3.865 billion yuan, an increase of 72.5%over the previous five years.

At present, a new round of scientific and technological revolution and industrial changes have made rapid progress, and profound changes in scientific research paradigms are undergoing profound changes. As a profound and more than a hundred years of history, Peking University is playing the advantages of solid basic research and cross -disciplinary cross -disciplinary integration, and strives to become the main force of basic research and the breakthrough of major scientific and technological breakthroughs.

The reporter learned that in the next five years, the school will also improve the continuous and stable support mechanism for basic disciplines, and carry out basic theoretical research on cutting -edge scientific issues such as cosmic evolution, material science, origin, and essence of consciousness. Several international leading academic highlands are built, and the original innovation capabilities of "from 0 to 1" are constantly enhanced.

At the same time, Peking University will also promote the overall development of applied disciplines, adhere to the focus of new engineering, new medical sciences, new liberal arts, and new agricultural sciences, and focus on key areas such as computers, electronic information, integrated circuits, artificial intelligence, aerospace, new materials, etc. Academic frontier, strengthen application basic research, strive to achieve major technological breakthroughs and application results, and better serve national strategic development.

Source: Xinhuanet

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