The conference of academicians of the two academies convened on May 28th focused on the 'Chinese innovation' of hundreds of millions of people. With the applause again and again, the path to building a strong world of science and technology has become clearer.
The chief engineer of the Tibet Autonomous Region’s Geological Survey and Development Bureau, Dorje, and the relevant experts jointly discovered the largest hot spring-type silicon-silicon deposit in the world, to the 82-year old vertebrate animal of the Chinese Academy of Sciences. Researcher Zhang Miman of the Research Institute of Ancient Humanity won the “Outstanding Female Scientist Award”. Scientists and technicians “have troubles and worries before and after the world”. They struggled for research and development and made every effort to achieve scientific and technological innovation. Play the most beautiful and beautiful chapter of a new era of great nations and science and technology -
The Road to Innovation Opened by a Letter: Providing Important Support for the Development of High-Tech Weapons and Equipment
'Can not cooperate with China in this area.'
In the mid-1990s, research on carbon/carbon in Europe and the United States was developing rapidly. Professor Li Hejun of the School of Materials Science at Northwestern Polytechnical University wrote a letter to a high-level research institution abroad. He hoped to jointly train doctoral students with the laboratory. For a long time, he waited for such a reply.
Li Hejun strongly realized that: Carbon/carbon research must take the road of independent innovation and take a leapfrogging path.
The carbon/carbon composite material is a composite material of carbon fiber as a framework to reinforce carbon or graphite matrix, and has a special high-tech application background for defense. It has historically been sealed tightly by developed countries.
Li Hejun breathed a sigh of relief. He took the team to test and analyze, and repeated trials. On one occasion, Li Hejun attended the College Celebration Conference. He fell down due to rain and slipped, causing a comminuted fracture of the back ribs. He should rest in bed. He insists on staying in bed every day to continue working.
At the end of the Twelfth Five-Year Plan, Li Hejun led the team to raise the protection level of the carbon/carbon composite oxidation-resistant coating to 1 600 °C and 900 hours, achieving domestic carbon/carbon composite materials. And the leap in anti-oxidation research. Based on a series of high-performance carbon/carbon composite low-cost manufacturing technologies invented by Li Hejun's team, the material preparation cost has been greatly reduced, and a breakthrough has been achieved in the application of aerospace strategic weapon applications to conventional tactical weapons.
The baby under the full moon is only one thing: 'domestic shield' fills the gap
At the beginning of 2006, when the researchers of China Railway Engineering Equipment Group Co., Ltd. were all busy designing and manufacturing the first prototype of the shield machine in China, Wang Dujuan who was on maternity leave had picked up the child who just had a full moon at home and sneaked into the company. .
The tunnel boring machine (also known as 'shield machine') was hailed as 'king of engineering machinery'. In October 2010, the first Shield Machine R&D project team consisting of 18 people was formally established. Wang Dujuan, 24 years old, became one of them.
In the year of 2005, Wang Dujuan temporarily left the team due to pregnancy. The child was just born a month later and her figure appeared in the team. She was quite proud of this: In order not to miss every discussion of prototype development, she was in the project. The group had set up an 'intelligence officer'. Every time she met, she rushed to the company's conference with her family.
In order to solve the technical problems, the project team members often need to go down the construction site to drill tunnels. Many of the construction sites are forbidden to enter the tunnel for security reasons. Wang Dujuan is in a hurry, he pulls his hair into a helmet, and puts dirt and oil on his face. In the past, it was hard to go in.
In April of 2008, Wang Dujuan and his colleagues succeeded in developing China's first composite shield machine, breaking the monopoly of the “shield”, and its overall performance has reached the international advanced level, filling our country in this The gap of the field.
Today, the "domestic shields" designed and manufactured by China Railway Engineering and Equipment Group not only go out of the country, but also create a number of world's largest, the world's largest diameter rectangular jacking pipe, the world's first horseshoe shield, and the world's first shielded tunnel dedicated shield A large number of pioneering products have been released.
Short hair, quiet, elegant and elegant, capable, is the first impression made by the chief engineer of China Railway Engineering Equipment Group Co., Ltd., which is only 40 years old. But many people don’t know that the child who had been jealous of her at home, Called Shi Xi—she at the time, she hoped to create the “domestic shield” as soon as possible to break the foreign monopoly!
'Homemade Shield' is a dream of her life from breaking the monopoly to gaining world recognition.
"Close contact" with Virulent Viruses: Winning a Key Game for Anti-S A R S Campaign
After the discovery of atypical pneumonia (SARS), to ensure the safe and effective use of drugs and vaccines, animal models must be used to conduct a large number of experiments. However, in the absence of understanding of pathogens, pathogen-free susceptible animal research basis, and no specific animal resources reserves, It is very difficult to establish animal models of SARS. It is considered by the scientific community as one of the bottlenecks in SARS research.
We can't wait to delay. Qin Chuan, director of the Institute of Medical Laboratory Animals of the Chinese Academy of Medical Sciences, did not say anything. Immediately took the lead and took on the task of establishing an animal model for SARS and vaccine development. Each time they entered the Biosafety Level 3 (P 3 ) experiment. Room, can not drink water for at least 6 hours, can not eat, can not go to the toilet, but must be sweating to overload the experimental operation; P 3 laboratory pressure should be maintained at negative pressure, after a few days, tinnitus, headache , Nausea and other negative pressure reactions followed ... Qinchuan bite teeth, all quite down.
The Qinchuan team worked day and night in the P 3 laboratory. She always left herself with the most dangerous technical links: inoculation of animals with viruses, physical examination of animals, collection of animal samples containing viruses, radiographs, and disinfection experiments. room……
Qin Chuan was too tired. Her eyes were dark, she was pale, and her body was wasted. In order to stabilize the military, she did not tell her colleagues about her anemia and hypotension. She often held the oxygen bag secretly to take oxygen. However, I saw some gay fatigue. Excessive, she also forcibly ordered them to rest and replace themselves.
After strenuous efforts, the research team successfully produced the world's first S AR S animal pathology model, opened a bottleneck that hindered S A R S research, and evaluated the first SARS vaccine, which made an indispensable contribution to the overall victory of the S A R S battle.
'The scientific and technological development of experimental animals in China still has a long way to go. The responsibility of our generation is to ensure the protection of scientific and technological resources and never let the epidemics of past diseases come to the fore. This is now used by the Qinchuan team. Cutting-edge technology has created a series of experimental animal breeds that are sensitive to important pathogens. The animal model system that simulates human diseases at different levels has been applied by more than 100 organizations at home and abroad to prevent and control infectious diseases in the future, precision medical treatment, and target drugs. R & D to seize the experimental animal science and technology resources 'core'.