Shulou(Shulou.com)11/24 Report--

Thank CTOnews.com netizens Rangers for their attitude and Mr. Aviation's clues to deliver! CTOnews.com, March 18, according to the Journal of the Chinese Academy of Sciences, on March 17, the High Technology Research and Development Center (basic Research Management Center) of the Ministry of Science and Technology released the top 10 advances in Chinese science in 2022. The CTOnews.com summary is as follows:

Zhu Rong patrol radar reveals the shallow layered structure of the Martian utopian plain

The ▲ Zhu Rong rover carries out in-situ radar exploration in the utopian plain. The detailed information of the Martian underground structure and physical properties of the High Technology Research and Development Center of the Ministry of Science and Technology is the key to the study of Martian geology and its livability evolution.

Chen Ling and Zhang Jinhai of the Institute of Geology and Geophysics of the Chinese Academy of Sciences made an in-depth analysis and fine imaging of the low-frequency radar data of the Zhu Rong rover. high-precision structural stratigraphic images and stratum physical property information above 80 meters in the south of the utopian plain have been obtained. This study reveals the shallow fine structure and physical properties of Mars, provides observational evidence for the long-term existence of water activity on Mars, and provides an important basis for in-depth understanding of Martian geological evolution, environment and climate change.

FAST fine characterization of active repetitive fast radio bursts (FRB) is the most violent burst phenomenon in the cosmic radio band and is one of the most hot frontiers in the astronomical field. The team of Li of the National Astronomical Observatory of the Chinese Academy of Sciences, together with the teams of Peking University, Zhijiang Laboratory and Shanghai Astronomical Observatory of the Chinese Academy of Sciences, discovered the world's first continuously active fast radio storm FRB20190520B using FAST. The largest polarization sample of FRB was obtained by monitoring the active repetitive fast radio storm FRB20201124A. FAST finely depicts active and repetitive fast radio storms and constructs a unified picture, which lays an observational foundation for finally revealing the origin of fast radio storms.

The new principle to realize the side reaction and corrosiveness caused by the complex components of seawater direct electrolysis has always been a difficult problem for hydrogen production from seawater direct electrolysis. By combining physical and mechanical processes such as molecular diffusion and interfacial phase equilibrium with electrochemical reactions, Xie Heping team of Shenzhen University / Sichuan University has created a new principle and technology for hydrogen production by in-situ direct electrolysis of seawater, which has solved the technical problems that have plagued the scientific and technological and industrial circles for a long time.

Reveal novel coronavirus mutation characteristics and immune escape mechanism team Cao Yunlong and Xie Xiaoliang of Peking University and Beijing Changping Laboratory, together with Wang Xiangxi of the Institute of Biophysics of the Chinese Academy of Sciences, took the lead in revealing the humoral immune escape mechanism and mutation evolution characteristics of novel coronavirus Omicron mutant and its new subclasses. the related research provides a theoretical basis and design guidance for the research and development of broad-spectrum COVID-19 vaccine and antibody drugs. It provides an important reference for the prevention and control of COVID-19 epidemic situation around the world.

The realization of high-efficiency all-perovskite laminated solar cells and module perovskite laminated solar cells have the advantage of low-cost solution treatment, which shows an important prospect in the large-scale application of thin film solar cells. Tan Hairen team of Nanjing University greatly improved the efficiency of full perovskite laminated cells by designing the polarity of passivating molecules to improve their adsorption intensity on the surface defect sites of narrow band gap perovskite grains. the mass-production preparation technology of large-area laminated photovoltaic modules has significantly improved the photovoltaic performance and stability of the modules.

New principle switching devices provide a new solution for high-performance mass storage high-density and mass storage is the key bottleneck of the development of information technology and digital economy in big data era. Song Zhitang and Zhu Min of Shanghai Institute of Microsystems and Information Technology, Chinese Academy of Sciences, invented a new switching device based on the interface effect of elemental tellurium and titanium nitride electrode, which has excellent comprehensive performance. it provides a new technical scheme for the development of mass storage and near memory computing.

Realizing the quantum coherent synthesis of ultra-cold triatomic molecules using ultra-cold molecules to simulate chemical reactions can accurately and comprehensively study complex systems, and the preparation of ultra-cold triatomic molecules has always been a great challenge in experiments. Pan Jianwei and Zhao Bo of the University of Science and Technology of China cooperated with Bai Chunli of the Institute of Chemistry of the Chinese Academy of Sciences to synthesize supercooled triatomic molecules coherently for the first time in the mixture of sodium and potassium ground state molecules and potassium atoms by radio frequency synthesis technology. This study opens up a new direction for the study of ultra-cold chemistry and quantum simulation.

At present, the global annual demand for the synthesis of ethylene glycol under mild pressure is up to tens of millions of tons, mainly from petrochemical industry. Xie Suyuan's team and Yuan Youzhu's team of Xiamen University, together with Fujian Institute of material structure of the Chinese Academy of Sciences and Xiamen Funa New Materials Technology Co., Ltd., developed fullerene modified copper catalyst. Fullerene buffered copper catalyzed ethylene glycol synthesis of dimethyl oxalate under mild pressure, which is expected to reduce dependence on petroleum technology.

It is found that a new mechanism of femtosecond laser-induced micro-nanostructures in complex systems will produce a variety of highly nonlinear effects when femtosecond laser is focused into the interior of the material. under this extreme condition, the interaction between light and matter is full of unknown. Qiu Jianrong's team of Zhejiang University and his collaborators have discovered a new mechanism of femtosecond laser-induced micro-nanostructure formation in complex systems. This result reveals the law of spatially selective mesoscopic phase separation and ion exchange induced by femtosecond laser, and develops the new principle of femtosecond laser three-dimensional extreme manufacturing technology.

The experimental results show that the superconducting "segmented Fermi surface" Fermi surface determines the electrical, optical and other physical properties of solid materials, and the artificial regulation of Fermi surface is an important way to control the physical properties of materials. The superconductor has no Fermi surface because of the energy gap. The team of Jia Jinfeng and Zheng Hao of Shanghai Jiaotong University worked with the team of Fu Liang of Massachusetts Institute of Technology to design and prepare the topological insulator / superconductor heterojunction system, and realized and observed the segmented Fermi noodles caused by Cooper pair momentum. This study opens up a new method to regulate the state of matter and construct a new type of topological superconductivity.

According to reports, the selection activity of "Top Ten Progress of Science in China", led by the High Technology Research and Development Center of the Ministry of Science and Technology (basic Research Management Center of the Ministry of Science and Technology), has been successfully held for 18 times. the aim is to publicize the major scientific progress of basic research in China, stimulate the scientific enthusiasm and dedication of scientific and technological workers, carry out the popularization of basic research, and promote public understanding, concern and support for basic research. To create a good scientific atmosphere in the whole society.

The selection process of the top ten advances in Chinese science can be divided into five steps: recommendation, primary selection, final selection, review and release. In 2022, five editorial departments, including "China basic Science", "Science and Technology Guide", "Journal of the Chinese Academy of Sciences", "China Science Foundation" and "Science Bulletin", recommended more than 600 scientific research progresses, all of which were officially published or completed between December 1, 2021 and November 30, 2022.

In December 2022, the High Technology Research and Development Center of the Ministry of Science and Technology (basic Research Management Center of the Ministry of Science and Technology) organized a preliminary meeting of the top ten advances in China's science in 2022, which was divided into four discipline groups: mathematical astronomical information science, chemical material energy science, geo-environmental science and life medical science. Experts were invited to select 30 developments from the recommended scientific developments to be finalised.

In the final selection, online voting was adopted. More than 3000 experts, including academicians of the Chinese Academy of Sciences, academicians of the Chinese Academy of Engineering, former directors of state key laboratories, experts of the advisory and advisory groups of the 973 Program, and chief scientists of the project, members of the overall expert group on key projects of the national key R & D plan and project leaders, etc., were invited to vote online on 30 candidates for scientific progress. And invited high-level experts to review the top 10 scientific progress in the number of votes, and finally confirmed that it was selected as the top 10 scientific progress in China in 2022.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.