Hammer of Technology

As soon as he entered the door, Senior Brother Zhang introduced Ning Wei to everyone after coughing twice.

The five people in the laboratory applauded symbolically. The sparse applause, especially the way these people looked at Ning Wei, made him feel that he was not very popular.He also roughly understood what Director Tian said, which really wasn't a good job.

But Ning Wei didn't care much about these things, after all, he is a doctor of mathematics.

"Dr. Ning, don't be a stranger. Before I went, Professor Tan came to visit. Because the project has not been going well recently, I was a little impatient. After listening to the result report, everyone was scolded, so everyone was not in a good mood. " Zhang Yancheng explained with a little embarrassment.

The senior didn't mention that Professor Tan boasted about Ning Wei in front of these people by the way, for fear that the people who had finally been invited would feel embarrassed.

Unexpectedly, Ning Wei replied without thinking, "It's okay, anyway, I'm not here to make friends."

These words made everyone and even Zhang Yancheng a little embarrassed, but it didn't matter, Ning Wei didn't feel embarrassed, anyway, it was the truth.How should I put it, in fact, the attitude of everyone in the laboratory is quite understandable. Think about it differently. If his top-notch youth project is not going well, no matter what reason Director Tian puts him in, it will make him feel uncomfortable. Shuangli, isn't this questioning his ability?

But if you really can't produce results, there is nothing you can do to be questioned. Anyway, Ning Wei thinks that if he can't produce results, if he really puts someone on him, he probably can only bear it.

"Well, everyone, don't be dazed. Let's show Dr. Ning the whole laboratory process first. Xiao Pan, let's start with the part you are in charge of. Let Dr. Ning understand the whole experimental process. Let's analyze what the problem is."

Zhang Yancheng tried his best to play the role of peacemaker to ease the awkward atmosphere.

Xiao Pan who was called was a young man, walked over, nodded to Ning Wei, and said, "Dr. The process will be as slow as possible, you may not know what questions you need to understand during the whole process, and I will give you the answers after I finish the demonstration."

"Oh, it's okay, and you don't need to slow down. You can demonstrate it in the usual way. In fact, Brother Zhang has already said it about it just now. I can just take a look now." Ning Wei nodded and said.

"Eh? That's fine, please follow me." Xiao Pan gave Ning Wei a slightly surprised look, led Ning Wei to a workbench, and turned on the computer.

"Other people should do their own work first." Brother Zhang confessed, and then began to sit in front of his computer and sort out the materials.

Several people started to get busy with the things at hand again, but their eyes always unconsciously glanced at Ning Wei's direction.Sure enough, good people are different, and they are really not afraid of offending people.

Of course, several people in the project team still recognize Ning Wei's talents and abilities in mathematics, and those who do scientific research, of course understand the importance of being able to publish papers in top journals.But there is a specialization in the technical field. By the way, has a math student ever been in a laboratory?Do you think you understand the whole experiment process just based on a few words from Senior Brother Zhang?

Although there is no bad intention, everyone wants to see Ning Wei make some jokes in the laboratory with their own eyes.

"By the way, where do you get these carbon nanotube raw materials?" Ning Wei didn't care about the small thoughts of these people, and asked whatever came to mind.

"Provided by the cooperative laboratory, they are responsible for preparing the carbon nanotubes used in the experiment." Xiao Pan replied casually.

"Oh!" Ning Wei nodded.

"In short, high-resolution projections of these raw materials were first performed, and then the received material was placed in acetone, treated with light ultrasonication for 2 minutes, and then these samples were placed on a filamentous carbon grid while drying naturally in the air. .” Xiao Pan started to explain while operating, and when he was free.

Although I am still in a bad mood, I still try my best to make the introduction.

"Here are the data of the previous few times, you can take a look at it first. After processing in this way, the average outer wall diameter of the four samples is 1, the average inner wall diameter is 0, and the average wall number is 1.9. The average aspect ratio of the viscosity of carbon nanotubes is 6700 ± 100. There are also Raman spectroscopy data used to characterize carbon nanotube fibers, as well as tensile strength data measured by the ares g2 rheometer."

Ning Wei nodded, but he was not very interested in the specific data introduced by Xiao Pan.

These data will be available when he leaves. At this time, he is more interested in the specific parameters and calculation methods of these equipment in the laboratory.

"Well, which equipment did you use to measure these results?" Ning Wei asked.

"Huh? The jem-2100f transmission electron microscope produced by the Japanese company Jeol, and the x-maxn 80t ie250 energy spectrometer produced by the British Oxford company." Xiaopan replied.

"Oh, do you know the approximate product parameters?" Ning Wei asked again.

Xiao Pan replied: "Well, anyway, the accelerating voltage is 200kv when we test, the point resolution of the device is 0.19nm, the line or lattice resolution is 0.1nm, and the tilt angle range is about ± 25°."

Ning Wei stared at the data in the computer and then pointed to the negative of the sample and asked, "Why is there no scale on the negative? How did you come to the final data conclusion?"

Xiao Pan immediately replied: "There is a file in dm3 format in the data. In addition, we have also calculated it through a formula. The length of the camera is given on the film. According to the formula rd=lλ, where r is the measured distance, and d is the distance between crystal planes. , l is the length of the camera given by the film, λ is the wavelength of the electron beam, why is the acceleration voltage of 200kv used, so it is the wavelength of the electron beam with a voltage of 200kv, which is generally taken as 0.00251nm.”

Then he added: "These data have been calculated repeatedly, and there must be no problem."

Ning Wei nodded noncommittally, this sentence was not surprising at all.If he could find the problem, Lao Tan would not have gone to the Institute of Mathematics to find foreign aid for help.

"We then introduced iodine monochloride into the fiber structure by gas-phase doping. The dopant and fiber were combined at room temperature in a round-bottomed flask purged with nitrogen. We then sealed the round-bottomed flask and placed it under vacuum until the dopant starts to evaporate and place it in a box oven at doping temperature. The box oven is covered with aluminum foil to minimize light exposure. After doping, the round bottom flask is removed from the oven and placed in a cooling in a water bath and then in an ice-water bath to promote the condensation and crystallization of the dopant on the inner wall of the round-bottom flask and prevent it from contaminating the sample."

"The annealing process here is carried out in a vacuum environment using a temperature controller. The target temperatures in the furnace are 500c and 350c respectively, and the annealing of the cnt fibers lasts for 4 hours respectively. So far, the entire solution spinning fiberization process is completed."

After listening to Xiao Pan's explanation, Ning Wei browsed through the laboratory data collected throughout the process, and then pointed to the data on the computer and asked: "Here is the ef value estimated by you using spectral analysis, and here is the e11 value of the four annealed samples. I have a look at the transition, but the peak is obviously suppressed during the doping process, is this due to Pauli blocking? Didn’t you investigate why this happened?”

"Huh?" This question stunned Xiao Pan for a while, and it also attracted the attention of everyone in the laboratory, and everyone turned their attention to Ning Wei.Probably because he really didn't expect him to ask such a question suddenly.

"Ahem..." Xiao Pan coughed twice, then looked at the lab colleagues behind him.

"Dr. Ning also has research on high-energy physics?" A voice came from behind.

Ning Wei looked back, he was about the same age as Senior Brother Zhang, but the baldness trend was obviously much more serious than other people in the laboratory.

"This is Dr. Xu from the laboratory, who is mainly responsible for the bending test of components." Xiao Pan quickly introduced.

"Know a little bit, not much." Ning Wei replied modestly, he really didn't dare to use the word "slightly understand" about physics for the time being.

Originally, Ning Wei also thought about supplementing some physics content, but because he seemed to be very busy all the time, after reading a quantum physics book in school, he had a general understanding of some of the basic concepts through some divergent thinking, but I can't say I know much about it.

Of course, it's not completely ignorant.After all, mathematics is often used to solve physical problems. For example, the ns equation he studied is to solve fluid dynamics problems.

"Well, we have also discovered this problem. We have conducted research and found that the greatest reason for this peak suppression is that the ef value is located in the valence band, resulting in Pauli blocking. However, after discussion, we think that this problem should be similar to what we encountered. The problem has little to do with it. The most important thing is that the pf values ​​of the four samples we tested are always much smaller than the pf values ​​required to build the material model, because if the pf value marked by the model cannot be reached, the material will not be meaningful even if it is developed.” Dr Xu explained.

"At the same time, we can also confirm that the pf value marked by the model is achievable. Because the cooperative laboratory has obtained this data by accident twice, but because they do not specifically study materials, they are of little help to us."

Ning Wei nodded again and said, "Okay, I understand. You can continue to explain the next steps."

……

In this way, Ning Wei stayed in the laboratory for more than five hours, and got a boxed lunch from the project team by the way.In fact, the food is still very good. Of course, this is most likely due to the fact that the canteen of Yanbei University is friendly enough to students, and has nothing to do with the laboratory itself.

After Ning Wei asked a very professional question, the attitude of everyone in the lab improved significantly.But for Ning Wei, these are just floating clouds. He is still very interested in all the experimental instruments in the laboratory, and he is tirelessly collecting all kinds of data. This is also the reason why more than five hours were wasted even though it was just a virtual demonstration.

I arrived at the laboratory around [-]:[-] in the morning, and it was already [-]:[-] in the afternoon when Senior Brother Zhang was about to send Ning Wei away. All the test data from the previous period had also been copied to a USB flash drive and sent to Ning Wei.

"Dr. Ning should already know the specific situation. To tell you the truth, we now have to analyze the data for two to three hours every night, but so far we have no clue. On the premise of not changing the direction of the experiment, we rashly start the experiment." The eighth experiment is not very meaningful, so this matter is actually quite urgent. And you know that this is a cooperative project, and the other side is also urgent. That's why Professor Tan wanted to use your professional knowledge to help us Analyze what may be wrong, and we can correct the next test plan after finding out the problem." Senior Brother Zhang said on behalf of everyone in the laboratory.

"No problem, I will study it as soon as possible. But let me tell you first, I don't guarantee that I can help you find the problem." Ning Wei said.

"I know this. After all, mathematics is not a panacea." Senior Brother Zhang nodded.

"No, no, Senior Brother Zhang, mathematics must be omnipotent. I think mathematics is not omnipotent, but our level of mathematics is not enough. After all, the ocean of mathematics is too vast, and we can only talk about it." Ning Wei Objections were given.

In one sentence, everyone in the laboratory rolled their eyes, only Senior Brother Zhang felt a little familiar with the two words.

"Ah, huh... Dr. Ning is really humble, how long will it take for you to give us a reply?" Brother Zhang swallowed and said.

"About a week. If you can find the problem, a week is definitely enough. If you can't find the problem, then it's probably useless to give me a year. Anyway, I have some clues here, and I will call you as soon as possible. Phone." Ning Wei answered after thinking for a while.

"Okay, I'll wait for your good news." Senior Brother Zhang said.

"Then I'll go first."

"I'll send it to you."

"No, I'll just go back by myself. Take your time, everyone. Don't waste your time and have to work overtime at night. You see, Dr. Xu's hair is about to fall out, and I feel anxious when I see it." Ning Wei waved his hand, Before leaving, I did not forget to comfort Dr. Xu, who introduced various instruments to him for a long time.

……

As soon as Ning Wei walked away, Dr. Xu, who was subconsciously stroking Mediterranean's head, couldn't help but say, "Old Zhang, why did Boss Tan invite this great god here? Are you willing to let him go?"

"Our boss will save face." Zhang Yancheng replied with a wry smile.

"Hey, I admire Dr. Ning's words just now, 'After all, in terms of mathematics, we can only say that we understand a little bit'. You tell me, is this modesty? Or is it hitting people?" Xiao Pan couldn't bear it either. Stop complaining.

"That must be modest. After all, Dr. Ning's achievements in mathematics are all there. Maybe Dr. Ning can really bring us good news this time!"

"Hey, but I have one thing to say, he seems to really understand the various methods used in our laboratory, and he is particularly interested in our laboratory instruments. Do you think that Dr. Ning will think about it in the future? Change your career, let’s work on materials? Want to grab a job!” Another person said.

"Dr. Ning came to do the materials? It's a shame you can figure it out. Isn't it good for people to do mathematics research? Maybe they can get the Fields Medal softly! And even if they don't do mathematics research, it's not good for them to be an algorithm engineer. ?You don’t know how much a senior algorithm engineer can earn in a year? Let Dr. Ning go to the laboratory every day like us? Who gave you the courage to open up such brains? What’s so good about your job? I can’t wait Send it out! Alright, let’s get to work! Don’t think about it!"

Zhang Yancheng couldn't hold back his complaints.

The main reason is that the ideas of this group of people are really outrageous. Of course, he is also quite strange. Ning Wei has indeed shown more curiosity about laboratory equipment than a doctoral student in mathematics...

What does this guy want?

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174 Goals determine planning

Ning Wei, who walked out of the laboratory, went straight back to the research institute. When he returned to the office, he found that Senior Brother Lu was very excited. He didn't immerse himself in research as usual, but listened to the radio in the office, which was still a sports broadcast.

Yu Xingwei had also come over, sitting in his seat and obediently reading the paper.

After saying hello to Yu Xingwei, Ning Wei asked curiously: "Senior brother, what's the matter? What happy event did you meet today?"

Lu Dongyi replied: "It's nothing, it's just that I have just received a reply for a paper, and it will be published in the "Annual Journal of Mathematics"."

Ning Wei blinked, um, it's good, it's another top mathematics journal.Compared with Senior Brother Lu, he suddenly felt that he was not a mathematics researcher. So far, the number of papers he has published in top mathematics journals is zero.

Yu Xingwei next to him raised his head and looked at Lu Dongyi with admiration. How should I put it, he was incomparable anyway.

"Hey... Congratulations! Brother Lu, what are the results? You have friendship with the editor of the Annual Journal of Mathematics, right? Just post another one? I remember that I have published two articles on the Annual Journal of Mathematics before, right? ? Is this the third chapter?" Ning Wei asked curiously.

He still remembered that Brother Lu once told him that from the founding of the country to the present, there were no more than 35 papers published in the four top journals of mathematics in China, and now there are about 36 papers.Of course, his mentality is super good, because he really doesn't care if he can get a mathematics journal now.

Lu Dongyi replied: "Haha, in fact, I have to thank you. The thesis was completed after I went to Yancheng to discuss with you before the Chinese New Year last year. Regarding the stability of ns flow, I directly set the critical index to 1. Initially The problem encountered is that all derivatives of the gevrey analytic space are controllable and infinitely smooth, while the Sobolev space does not control the higher-order derivatives, and the stability of the inference is always difficult to solve.”

"Then we discussed your Ningwei space, introduced this concept, and then successfully rolled out the conclusion. After your paper was published in "Nature", I submitted the paper to the "Annual Journal of Mathematics" This paper has been reviewed for about half a year, and finally published. However, my paper can be published because your paper in "Nature" has basically been accepted by the entire academic community, otherwise, it may have to wait."

Ning Wei blinked, nodded and said with emotion: "Sure enough, the mathematics world still can't tolerate me. In the future, I will be at odds with the four top journals in mathematics."

After hearing this, Lu Dongyi was stunned, and said in a muffled voice: "Didn't Director Tian tell you? Who said that the mathematics world can't tolerate you anymore? Now as long as you have research results, submit it directly, and it will be reviewed for you as soon as possible." Passed. Now people are eager for you to submit an article quickly, so as to save many professors from being annoyed by students every day."

Ning Wei shook his head, and said seriously: "I didn't say anything, but even so, I have already decided that I will not contribute to the four top journals of mathematics that my brother said."

Lu Dongyi was stunned, and asked, "Why?"

Yu Xingwei couldn't help but rush to answer: "Probably Xiao Ning will never give anyone the chance to reject him twice!"

Ning Wei glanced at Yu Xingwei, nodded and said: "Your statement is very innovative, I will use it first. But I still congratulate senior brother, please remember to invite me to dinner."

Lu Dongyi shook his head, too lazy to talk to these two people.

If you don't post it, don't post it, anyway, Ning Wei doesn't need to pass the papers to determine his status.And it doesn't matter if you don't vote for these comprehensive mathematics journals, there are many top journals in the world with more detailed categories that you can vote for.

Ning Wei also turned on the computer. He still had business to do. Instead of rushing to analyze the data, he first logged into the school library and started looking for various research literature on carbon nanotubes.

Before throwing the question to March, he still needs to know more about the various properties of carbon nanotubes.

The discussion about mathematics in the laboratory just now is rather serious.

It has long been determined in his subconscious mind that there are laws in the operation of everything in the world, and as long as there are laws, they can be expressed by mathematics.Mathematics can indeed solve all problems. The problems that mathematics cannot solve at this stage are because there is no one who can fully understand mathematics.

Ning Wei hasn't noticed yet, subconsciously he has become more and more confident, but if he really wants to say that he can completely understand mathematics, he really dare not have such delusions.

It's as if he never felt that it was a kind of modesty for him to say that he had a little understanding of mathematics. It was nothing more than that his little understanding was a little bit more than the others' very good understanding.

The palace of science is sometimes like climbing a mountain. When you start to climb, you feel that you are about to reach the peak, but after a 180-degree turn, you find that you have just climbed a small slope, and the real mountain is still there. One hundred and eight thousand miles away from oneself.

Not to mention the era of highly developed science and technology. Many people have spent their entire lives in scientific research, but only to satisfy their thirst for knowledge. If mathematics can advance human understanding of mathematics a little bit, they can become a big boss.At the same time, if you can use mathematics to solve practical problems, then you are really a big shot.

Especially since the turbulence algorithm was realized and his wallet bulged, Ning Wei found that he no longer had the motivation to publish papers in top journals. This was his real thought when he told Lu Dongyi that he was too lazy to submit papers to the top four journals.The mentality of winning the award is probably just to follow the fate. Anyway, the highest mathematics award is only 80 US dollars. It used to make him feel excited for a while, but now he just doesn't feel it.

But this is not to say that Ningwei has lost interest in learning. On the contrary, completing the project at hand, plumping up the main program of March, and using mathematical theory to solve practical problems has gradually replaced his previous ideas, and has become Ningwei's most important thing now. There is no one important life goal.

Just like what he once said to Lu Dongyi, he wanted to try to see if he could really make the country raise the subsistence allowance from [-] to [-] or even [-].Of course, to achieve this goal, Ning Wei feels that he must not focus too much on a certain research direction, but should cooperate with a group of people who are willing to do things.

Ning Wei felt that the cooperation with Professor Tan's project team this time was a good start. Although this project is successful, it will not be able to be applied for the time being, but maybe he can mass-produce carbon nanotubes in the future and maintain the macro scale. The problem of microscopic characteristics was solved, and the project became immediately realistic and significant.

So even though he was still emphasizing to Senior Brother Zhang that this problem might not be solved before he left, Ning Wei was still very serious and hoped that he could find out the cause of the problem quickly.

How can I say an advertisement?

To work hard silently, and then amaze everyone, he plans to try.I don't want to surprise everyone, but I want to make myself happy.

……

Ning Wei also once again experienced the feeling of learning makes people happy.

If it was an exaggeration to say that he had a little understanding of materials science when chatting with Zhang Yancheng before, after reading dozens of research materials and papers on carbon nanotubes, Ning Wei feels that he can definitely say it confidently now. This sentence, especially carbon nanotubes, an extremely interesting low-dimensional material.

After studying the discoveries of his predecessors, he called up the data copied from the laboratory.

How should I put it, this material is obviously not hidden at all, and the data of each process is listed in the table in detail.

Of course, there is really no need for the project team to hide their secrets. After all, if the problem cannot be solved because of concealing data, the entire project may be listed as a failed project, all data will be sealed, and there is a risk that it will not be launched for the time being.

Especially seeing that Senior Brother Zhang was so enthusiastic, Ning Wei even suspected that Senior Brother Zhang's doctoral dissertation might be closely related to this project, and even planned to use this project to collect materials.

Of course, too detailed data is sometimes not a good thing, because the more data listed, the more invalid data, and it is troublesome to find all these data.

The first thing Ningwei has to do is sort out all the data, after all, he can't import all these data into March's database.

At the same time, he also needs to build a simple mathematical model through the various functions and data of the instruments in the project team that he has mastered, so as to facilitate the analysis of the acquired data in March.

This is definitely an extremely difficult job for other people. Dang Ningwei found that he is very good at doing this, even better than writing papers.

As early as when he was in charge of the eda project, he found that his thinking was very clear when programming, which is why his hand speed was super fast when programming, but now when processing these complex data, Ning Wei found that the thinking of the brain is more clear.After passing through the complex data in the mind, the invalid data that must not be related to the result can be eliminated through intuition.