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Chapter 551: A highly successful method for preparing ultrafine fibers!

The class reunion that really made Qin Ke and Ning Qingyun feel particularly comfortable and at home was the class reunion of Yingyuan Private High School on the fifth day of the Lunar New Year.

Homeroom teacher Wei Wenping and mathematics teacher Zheng Jianzhou were both here, and almost no student in Class 3, Grade 3 was absent.

We haven’t seen each other for nearly a year, but everyone quickly became familiar with each other from the slight unfamiliarity. Qin Ke and Ning Qingyun were still the focus, but everyone’s smiles were much more sincere and enthusiastic, especially the boys, Ge Zhixing,

Li Xiong, Wang Lixin, Xiang Qi and Qin Ke made various jokes. Qin Ke's achievements did not distance everyone. Everyone just wished and marveled from the bottom of their hearts.

Lao Zheng is the one with the brightest face. By teaching outstanding mathematicians such as Qin Ke and Ning Qingyun who are well-known throughout the country, his status in the education field has skyrocketed. He has been rated as a national-level special teacher. I don’t know.

Many parents wanted to send their children to the class where he taught. It can be said that Lao Zheng had gained both fame and fortune. At this time, even the three hairs on the top of his head stood up energetically.

Lao Zheng knew very well that the rise of Qin Ke and Ning Qingyun was mainly due to the fact that the two students themselves had little to do with his teachings, not to mention that both students were now better than their masters. Although he enjoyed such a halo of glory, he still

He is very principled. He does not accept gifts, does not open training classes in private, and does not accept transfer students at will. He teaches which classes the school arranges for him to teach. He still prepares lessons and teaches seriously as before, and repeatedly studies Qin Ke’s original teachings.

Videotapes of lectures in large high school classrooms, from which the most scientific teaching system can be learned.

Now his teaching level has indeed improved greatly. He is not ranked first in the province, but he will definitely be ranked among the top three in the province.

He took the cigarette from Qin Ke and sniffed it with enjoyment but did not light it. Although these students were adults and not high school students, he was still very careful not to smoke in front of the students.

He put the cigarette to his ear and smiled: "Qin Ke, I have taught many students, and you are the student I look forward to the most. Is there any chance of winning back the Fields Medal at the end of this year? If there is a student who can

By winning this top prize in mathematics, I, Lao Zheng, will have no regrets in my life."

Qin Ke still has a good impression of this former mathematics teacher. Without his "protection" and "cooperation and assistance", it would be another level of difficulty for him to catch up with Ning Qingyun. He smiled and said: "This Fields

It's not me who has the final say about the award. If it were me, I would give you one first. In my heart, you are the best math teacher."

"You kid, I haven't seen you for more than a year, but you are still so sweet." Lao Zheng was amused. He shook his head and pointed at Qin Ke, then looked at Ning Qingyun and the students around him with emotion: "But seeing everyone here

I am doing well in college and I am very happy. It is not necessary for everyone to be as famous as Qin Ke and Ning Qingyun and win international awards. As long as they don’t waste their time and don’t do anything that offends their conscience, then I, Old Zheng, will be the best.

Proud student.”

Qin Ke and Ning Qingyun took the lead in applauding, and the applause was thunderous, making many students' eyes wet.

The students gathered together to chat. Li Lin held Ning Qingyun's arm and looked at her smiling.

Ning Qingyun felt a little uncomfortable when she looked at her: "Why are you laughing?"

"I'm very strange. I obviously feel that Brother Ke should take good care of you, but why are you not fat at all? And you look exactly the same as two years ago. Look at me, my waist is rounded, and there are small pimples here.

You have acne, but Qingyun, your skin is still supple and supple without any blemishes. Please teach us what skin care products you use. Or is it the result of our hard work and moisturizing?"

Ning Qingyun blushed when a group of girls asked her: "Li Lin, can you stop being such a gangster and dare to say anything?"

"We are all people who have boyfriends. Is there anything wrong with saying this? Do you think this is true?"

The girls said softly: "Yes——! Qingjun, please tell me what skin care products you use?"

"I just use the facial mask I've been using before...I don't use anything else."

"We've been using that mask, but it's not so effective. Sure enough, it's Brother Ke's credit?"

The girls over there were chattering and laughing, while the boys were blowing beer and singing ktv songs in a wailing manner. In the end, many boys drank too much. Xiang Qi, for example, put his arms around Qin Ke's shoulders and cried.

He laughed and said that he would never meet a good brother like Brother Ke again in college.

What he said made many boys and girls blush.

The cohesiveness of Class 3, Grade 3, is already very strong. Most of the students have gone to other places to study. Their classmates come from all over the world, and their living habits and personalities are all different. In comparison, returning to their hometown and participating in such a class reunion makes me think of the green past.

As time goes by, I feel that although high school is hard and tiring, it is so pure and unforgettable.

It was already night when the show ended. Ning Qingyun helped Qin Ke, who was also a little drunk, to say goodbye to everyone. Considering that they were going to drink, the two of them didn't drive here and took a taxi home directly.

Looking at each other supporting each other and walking away intimately under the street lamp, the two figures were close to each other under the lamplight. Ning Qingyun also carefully wiped Qin Ke's face with a handkerchief, and the happiness she showed was enviable.

The head teacher Wei Wenping is the one who feels the most. It is said that puppy love and first love are the most likely to fail and cause more harm than good. However, this curse failed on Qin Ke and Ning Qingyun.

As the staunchest opponent of puppy love, Wei Wenping saw that Ning Qingyun and Qin Ke were sweetly together and continued to work together like high school, achieving world-renowned academic results. She suddenly felt that as long as they guided

Appropriately, young love may not be a bad thing.

Wei Wenping secretly made up her mind that in the future she would have to care about students from the bottom of her heart and be their friend in order to guide them towards a better future.



After the high school reunion, Qin Ke and Ning Qingyun went to visit Principal Wen Jianzhao, Principal Fang Yuan, Teacher Shi Cunyuan, Teacher Lin Haibo and other acquaintances and elders in the next few days to pay New Year greetings, and then drove to a nursing home in the suburbs together.

, visiting grandpa Ning Jingguang and grandma Chu Mimei.

After not seeing each other for a semester, the complexions of the two elderly people have improved greatly. They are at least rosier than they look in the video, and they are said to be able to finish a bowl of rice at every meal.

Although Ning Jingguang's eyes have not improved much, and he still has to rely on specially customized glasses to barely maintain a vision of about 0.3, his body is indeed slowly recovering, and Chu Mimei's health has not deteriorated anymore, and has even begun to show signs of improvement.

.The data displayed by various medical instruments is the best evidence.

This is undoubtedly the result of the Eastern Peiyuan Method. Ning Qingyun is the happiest. She has lost her father's love and mother's love since she was a child, so she is particularly close to her grandparents, especially her grandmother who brought her up.

One of the spiritual pillars of the soul.

Originally, she saw that her grandparents were already in their twilight years, and she was afraid that they would not be able to survive two years. But now her physical condition has improved significantly, and Qin Ke estimated that as long as the two old people persist in practicing, it should be possible to extend their life by about ten years, which is enough for them.

Ning Qingyun was so happy that she almost cried.

Seeing this, Qin Ke simply stayed in the nursing home for a few more days and let Ning Qingyun spend time with the two elderly people.

During this period, Qin Ke and Ning Qingyun also resumed follow-up on several topics other than mathematics.

One is naturally computational seed science. The data obtained from the Biological Society has been saved in the laptop. After nearly two months of analysis and research, the two have made a huge leap in their understanding of plant DNA, and Qing Qing

The new equipment purchased by the Lemon Plant Cultivation Laboratory has also completed the procurement procedures and is being transported across the sea. It is expected that all the equipment will arrive by the end of March. With about a month of installation and debugging, it will be put into experiments in early May.

By then, the three experimental groups will strengthen research and experiments on seed DNA, further enrich the theory of computational seed science, and lay a theoretical foundation for the emergence of new desert sweet potatoes.

The second is the O&M handover of EDA. After four or five months of upgrade and O&M training, the EDA team is fully able to take over the O&M work of EDA. It can also take over the algorithm upgrade work that occasionally requires the guidance of "Mr. Q".

Qin Ke and Ning Qingjun decided to hand over all development and operation work of EDA to the EDA team, freeing up their hands to focus on materials science. They only served as the final guidance consultants when the EDA team encountered technical problems that could not be solved.

, and then help.

The third one is the materials science project "Using the Karman Vortex Effect to Study High-Throughput Preparation of Ultrafine Fibers" in which the two participated as deputy assistants.

This project team consists of more than two dozen doctoral students and graduate students. They have been conducting experiments almost throughout the Spring Festival. Qin Ke and Ning Qingyun, in addition to leading the overall situation, are also responsible for continuously optimizing experiments using mathematical modeling methods.

Models and experimental protocols.

The original experimental plan mainly used needle-based solution air spinning technology, which uses the airflow-induced shear force of the Karman vortex effect to act on the refined solution extruded from the needle tip, and promotes solvent evaporation through airflow along the flow direction.

, thereby obtaining ultrafine fibers, but this solution will also cause the problem of needle clogging due to rapid evaporation or solidification of the solution. This problem has never been solved.

Qin Ke and Ning Qingjun repeated the experimental experience and experimental data, and finally decided to abandon the needle and instead use closed-loop nylon wire. With the help of the leeward side of the nylon wire, strong shear stress and Karman vortex effect were generated to form Taylor cone and

The refinement of the solution jet accelerates the evaporation of the solution with airflow dynamics, thereby achieving high-throughput preparation of ultrafine fibers.

This brand-new experimental model also has new problems, such as difficulty in fiber collection, solvent evaporation, high-pressure safety issues, droplet formation, etc., which limits its large-scale use in industrial environments.

In the past two or three months, Qin Ke and his team have led the team to overcome these key problems one by one. Now there is only the last difficulty left to overcome, which is the problem of "droplet formation".

But last night, Qin Ke and Ning Qingyun solved this problem by optimizing the structure of closed-loop nylon yarn.

Of course, it is only shown on the mathematical model that it has been solved, and it must ultimately be verified through a real experimental environment.

Unlike in the past, where the results of the mathematical model were handed in and done, Qin Ke and Ning Qingyun participated in the whole process of this project and served as the main managers and organizers, so they kept video conferences open at night and watched remotely.

Progress in the laboratory.

In Lao He's laboratory, more than twenty scientific researchers were conducting the final experiments nervously and orderly. Professor He Liangfu and Professor Hu Qingfeng also came to the scene. The results of this experiment are very critical. If they can be achieved

If more than 90% of the deduced data is obtained, the project can be declared successful.

It was already 10:30 in the evening, and the atmosphere was a bit tense. No one spoke, and everyone was focused on their work.

Most people had two panda eyes. In order for this experiment to be successful, almost everyone here stayed up all night and slept for less than five hours. However, no one dared to relax because the experiment involved too much fine control.

, an instrument control error may cause the experiment to be interrupted or even restarted.

Qin Ke and Ning Qingyun were also infected by this atmosphere, and there were slight beads of sweat in their hands held together.

This is the first time that the two of them have designed such a complex experimental model in materials science, and the entire plan was proposed by them, Lao Hu, Lao He, and a group of scientific researchers worked together to improve it.

Once it fails, the blow to morale will be severe.

Ning Qingyun asked in a low voice: "Qin Xiaoke, do you think it can succeed?"

Qin Kekuan comforted him: "So far, we have strictly followed the deduction results of our mathematical model, and there have been no mistakes. The delivery speed of the solution has also remained within the optimal range. I think it should be possible to succeed. Look, high speed

In the photos taken by the camera, the Karman vortex effect formed around the nylon thread structure is very standard, which is a sign of success."

Not only Qin Ke and Ning Qingyun in Yuanzhou, but also Professor He Liangfu and Professor Hu Qingfeng in the Qingmu University laboratory were nervously staring at the changing monitoring values.

"I didn't expect that the final experimental model would be so sophisticated and complex. It's really hard for them to come up with such a complex structure like a spider web. The application of mathematics in materials science is amazing." Lao Hu sighed.

He Liangfu nodded: "It is indeed amazing. Although it is a bit complicated, the structure is stacked and easy to implement. It does not affect the subsequent large-scale preparation in an industrial environment at all. This is probably the first to use a stacked structure to achieve such a

The technology for preparing refined fibers is the first of its kind. Hey... look, the first batch of results are out!"

He Liangfu pointed to the almost invisible straight fiber prepared by the experiment, and the monitor immediately displayed the relevant data.

"Successful!" Lao Hu's hand was originally pressed on the table, but now he was so excited that he clenched the pile of draft paper under his hand until it was so wrinkled that he didn't even realize it.

He Liangfu fixed the monitor tightly, and the displayed data was perfect, almost matching the deduced data by 99%!

"It's... amazing! This mathematical model can actually achieve such a high degree of fit. It's simply... incredible!" Even if he is used to Qin Ke and Ning Qingyun's mathematical modeling capabilities, this time it goes beyond their understanding.

, the 99% fit with real experiments still made He Liangfu’s voice tremble with excitement.

The entire laboratory has begun to cheer and celebrate.

In the nursing home in Yuanzhou, Qin Ke and Ning Qingyun also high-fived excitedly in celebration.

Professor He Liangfu's face soon appeared in the video conference. He suppressed the excitement in his heart: "Qin Ke, Ning Qingyun, the experiment was successful, and our project this time has also achieved the most satisfactory results! This is also

With the success of you two, you have basically demonstrated your ability to independently lead a team to conduct materials science research! Lao Hu and I will report to the school. As long as you are willing, I believe the school will definitely allow you to have your own materials science laboratory!"

/

Please remember the domain name of this book:. Novels of Strange People of the Republic of China
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