With everyone's cooperation, it can be regarded as a familiar road. Moreover, this topic has entered the optimization period, making it easier to understand.

To put it simply, Liu Hao and the others chose to use poly-N-isopropylacrylamide as a temperature-responsive polymer and modified polyethylene glycol to achieve temperature sensitivity.

Then use molecular monomers containing Diels-Alder reaction to form dynamic covalent bond monomers to realize the memory function.

The synthesis method is to mix responsive monomers with cross-linking agents and form gels through free radical polymerization.

A cross-linking reaction is carried out in the solution to form a uniform gel network. Finally, the network structure of the gel is achieved through hydrogen bonding and π-π stacking.

At present, the best situation in the laboratory is to achieve more than 70% fracture strength recovery, and the self-healing efficiency has also reached more than 75%.

However, Party A requires that at least 90% of fracture strength recovery and self-repair efficiency of more than 95% be achieved.

Because it is said that MIT has achieved more than 95% self-healing efficiency by introducing dual network dynamic bonds, and at the same time, the material's fracture strength recovery has reached 92%.

The University of California, Los Angeles, has also used thermally responsive polymers to achieve materials that recover more than 90% of their fracture strength.

The current problem is that those solutions have low universality and high cost. In particular, the cost of dynamic chemical bond design is too high and is not suitable for large-scale industrialization.

That's why Liu Hao's mentor received this order because he wanted to make some breakthroughs. Especially in the field of aerospace vehicles, there is a high demand for this material.

Used in outer coatings, it can sense and repair micro-cracks, and its self-healing properties can extend the service life of materials in the harsh environment of space.

At the same time, the temperature responsiveness can also protect the equipment from working under extreme temperature conditions.

The other is to manufacture energy storage battery electrode materials, which can not only make structural adjustments or repairs according to the temperature changes generated during charging and discharging, but also extend battery life and prevent safety accidents caused by thermal runaway.

Of course, this kind of smart material has many other applications, but according to Brother Zhang's schedule, if they can really make it, Party A will definitely design products specifically for these two directions.

And now many domestic research institutes are making breakthroughs in this area, but their research group and the Huairou Institute are still ahead in the country.

Of course, there are differences. For example, this time the subject is relatively large. In fact, the subject is far more than just these people today. There are also two other laboratories doing some supporting work.

However, Qiao Yu was still the same as that day. After understanding the specific laboratory methods in the laboratory and looking at the literature and laboratory data in the office, he found that this time the problem was indeed quite difficult.

The main reason is that the entire laboratory environment is a dynamic reaction network, and there are indeed too many parameter dimensions.

Time, solution concentration, molecular forces... there are too many situations that can affect the results.

The most troubling thing is that the data they collected is also very complicated. Although there are already relatively mature solutions, with just a slight change, the parameters may be completely different, or the material properties after self-repair may be seriously deteriorated, etc.

question……

Looking at the messy laboratory data, Qiao Yu felt astonished and understood that the current development of new materials was just a large-scale trial and error experiment.

I know roughly what I need, and I have a direction on how to make it, but many details have to be trial and error, such as the concentration of the fusion agent, the gel cross-linking reaction time, and the ratio of monomers to cross-linking agents.

…

Wait, you need to continue trial and error at each step until you get a relatively satisfactory result.

Of course, there is nothing to criticize about this method. After all, this is what everyone does.

But if the results of each experiment are linear, it will be okay. As long as we can slowly approach the ideal results, everyone can see hope and be full of motivation to work.

But the problem is that the results of each test are non-linear. To put it simply, sometimes the results look good, and then after fine-tuning on this basis, the results become worse again.

After further fine-tuning, it got worse. Until occasionally a better result appeared from a laboratory sample...

After reading the laboratory records, Qiao Yu probably understood why Professor Lu told them to do more experiments. This rule is too elusive.

Using these results to make models and run simulations will exhaust the supercomputer, but it won't be of much use.

After all, supercomputing simulation must first collect enough data, so that it is possible to obtain some highly reliable possibilities without actually conducting experiments.

If there is not enough data support, various parameters cannot be effectively controlled. In this case, letting the supercomputer run blindly is a waste of computing power.

After reading the laboratory records and some documents, Qiao Yu turned his head and glanced at Senior Brother Liu who had been beside him and looked at him expectantly.

He asked very seriously: "Brother Liu, I am not questioning your professionalism, I just want to ask, if you accidentally got a good result in the laboratory, and then there happened to be a mistake in the laboratory records, what would you do?

Will you go crazy?"

Liu Hao was stunned for a moment, and then a complicated expression appeared on his face. Then he pointed to the window next to him and said decisively: "Crazy? Let me tell you, in this case, whoever made a mistake in their work will be punished immediately.

Who just threw it out of that window!"

After saying that, he seemed to feel that he was too cruel, so Liu Hao added: "Of course, if it was me who made the mistake, I wouldn't ask for help from others and would jump off myself."

Qiao Yu thought for a while, this should be on the fifth floor, and each floor of the chemistry building seemed to be higher than a normal building. He estimated that it was probably nearly 20 meters above the ground.

In addition, there is a hardened road below the window, so there seems to be little hope for a person to survive a fall from a height of twenty meters.

Well...if those who study mathematics are just a little bit dirty, those who study chemistry are too cruel!

It seems very unprofessional to throw people out of the window at every turn. If you can't just feed sulfuric acid directly? After all, throwing people downstairs can easily hit them...

"Hey, let me call you Junior Brother Qiao, you don't know how hard it is to stay in the laboratory. Let me tell you this, for this project, I haven't rested for more than half a year.

Seriously, can you believe that I haven’t had a day off in the past six months? You may not believe it, but I have only had three good nights of sleep in such a long time, and I was on a business trip with my boss to attend a meeting.

Not only is this the case for me, but the rest of the research team is similar. The average sleep time is no more than six hours a day. What is 996? We are the real 007!

Just say that in this case, if there is a good result, but the result is not recorded due to human reasons, even if I let him go, can others let him go?"

Liu Hao turned on the crazy complaining mode.

Qiao Yu nodded, and then became deeply worried. It makes sense that this chemistry building is not on the main campus.

Not to mention the danger of the laboratory building itself, if he stayed in the laboratory for such a long time, he would most likely have some psychological problems. There should be a psychiatrist in this building.

Really, he originally thought that he and Senior Brother Chen had worked hard enough, but now it seems that Senior Brother Chen still has a lot of room to tap into his potential.

This made Qiao Yu become serious and asked: "Let's not talk about this for now. I think you need to observe the pore structure and network uniformity inside the gel every time. This directly affects the repairability of the material, right?"

"More than that. You can see that this directly affects the key functional groups. Only the network structure is uniform, indicating the formation of dynamic covalent bonds and hydrogen bonds. You can combine this with infrared spectroscopy to see this."

…

Just like this, Qiao Yu quickly understood the entire process and the correlation of the test results.

Due to time constraints, Qiao Yushun took another dinner in the laboratory. Of course, this time Liu Hao asked Chen Jiang to bring it to everyone in the cafeteria.

It's the same for everyone, a box lunch, a bottle of mineral water, and a meal in ten minutes.

Of course, the canteen of Yanbei University is cheap enough. Otherwise, eating like this every day will easily make the person who is treating the guests return to poverty.

That is to say, in the laboratory this afternoon, a batch of new materials were undergoing various tests and collecting and recording data. In short, everyone in the laboratory was quite busy.

Even Chen Jiang is the same. According to Qiao Yu's observation, because every synthesis requires the preparation of solutions, dirty bottles are constantly produced.

To put it bluntly, the entire laboratory is a more advanced and professional assembly line, not fancy at all.

"I understand it almost, but this time I have to think carefully about how to deal with it. I have to take this data back. You know, the question last time was very simple, but this time it seems a bit troublesome. I have to think of other things.

way."

After understanding everything he needed to know, Qiao Yu told Liu Hao very straightforwardly.

It's not that he has any reservations, it's mainly that the problem this time is indeed much more complicated than last time.

And as Professor Lu said, the laboratory data is not enough. Well, in fact, it is not only not simple enough, but also lacks a clear direction, which makes it very difficult to model or design simulation models.

Even if the model is designed, it does not have the ability to generalize. Even if the design is forced, the experimental direction may not be clearly known in the end, and the most likely error will be repeated.

The last situation was at three different temperatures. The other two temperatures have enough data support. After comparison, it is easy to analyze where the problem lies.

As long as you read other literature and find out the different chemical reactions that may occur at 500K and the other two different temperatures, you can make a rough judgment.

To be honest, Liu Hao was somewhat disappointed.

But if you think about it carefully, this is actually a normal situation. After all, Qiao Yu is not a god...

To be honest, he may not have as much experience in this area as Professor Lu.

It can only be said that the fact that Qiao Yu solved the problem in one day last time gave him some unrealistic fantasies.

But then again, at least Qiao Yu is not as dead as Professor Lu said, so there is still some hope.

So Liu Hao immediately said: "It's okay, you can just take it back for analysis. If necessary, we will have new data coming out every week. I will ask Chen Jiang to send it to you."

"That's fine. By the way, I think Senior Brother Chen Jiang has a very good memory. Just washing bottles is a bit of a waste. After all, he has a good memory. Sometimes it may be helpful for the situation I just mentioned. He can easily send people upstairs.

Throwing it down, it’s terrible.”

Before leaving, Qiao Yu made a joke.

"Haha, actually we did this during the first year of graduate school, but you're right, it's time to let Chen Jiang do other things later. It just so happens that we don't have enough manpower for this subject. I'll tell the boss later and adjust it again.

A graduate student is here."

Liu Hao also said haha.

What can I say, Qiao Yu really doesn't mind casually saying nice things for the sake of Senior Brother Chen, who is engaged in chemistry, still remembering what kind of milk tea he likes to drink after half a year.

Anyway, he didn’t have any losses to him, and he has a particularly good memory, so he should be able to remember his gratitude for a long time, right?

…

After communicating with Liu Hao, Qiao Yu said hello to other people in the laboratory, then patted his butt and left.

Liu Hao sent Qiao Yu out to the downstairs of the laboratory. After watching Qiao Yu grab a small yellow car and drive away, he turned back to the laboratory.

When passing by Chen Jiang, Liu Hao stopped, thought for a moment, and then said: "Chen Jiang, a junior brother will come to take over your affairs tomorrow. You should rest early today.

I will tell your senior brother Zhang later and let him familiarize you with the laboratory. Well, just start with the simplest preparation, no problem."

Well, this sentence really surprised Chen Jiang.

Although he does not wash bottles every day, the senior brothers and sisters still let him participate in some simple experiments.

But whenever such an important topic comes up, I still like to bring him in to wash bottles. The reason is that I think he is more skilled at washing bottles and will not delay things.

This is really embarrassing.

To be honest, if Chen Jiang was given a choice, he would rather do experiments on his own in those small projects than wash bottles in such a large research group.

But there is no way. A graduate student like him who has been in the group for less than a year really has no human rights, especially when the tutor is still very powerful. Moreover, he cannot miss the classes he is supposed to take, and he cannot choose any work in the laboratory...

The only thing I'm thankful for is probably that the instructors are really generous. The subsidies given to them are quite large, and they never think of ways to go back.

My senior brother is doing well in the School of Chemistry, and he can get a lot of scholarships. Plus various subsidies from the state and the school, the money is really quite a lot anyway.

Chen Jiang also inquired privately and found out that the money he received was more than most people in his grade.

For example, another instructor who is also familiar with Chen Jiang in the next door dormitory is currently working on a battery project. He also washes bottles every day, and he has not been asked to do any small projects.

The various subsidies received and the subsidies paid by the boss combined are only about two-thirds of his monthly allowance, sometimes only one-half.

This is where the motivation for hard work comes from.

Today, the boss of the laboratory suddenly said this, which was absolutely a blessing from heaven for Chen Jiang.

"Ah? Thank you, Senior Brother Liu. Don't worry, I will definitely work hard."

The surprise came so suddenly that Chen Jiang was a little incoherent.

After all, this means that he is no longer the most transparent person in the laboratory. Being able to participate in experimental operations is much more interesting than washing bottles.

Seeing Chen Jiang's surprised look, Liu Hao sighed inwardly.

In fact, everyone has washed bottles. In a sense, this level is a test of one's patience.

After all, the transition from bottle washing to laboratory operation is actually no different. Even if you do it a lot, it will still be the same thing.

If you can't pass the test of washing bottles, the boring and boring laboratory life will be even more unbearable.

Not to mention that chemical experiments often involve various dangers. If you don't have that patience, if something goes wrong, it's not a question of whether you can graduate, but whether you can take care of yourself in the future.

"Well, actually, you don't need to thank me. When Qiao Yu left just now, he said that you have a very good memory and he is very optimistic about your future performance in the laboratory. Of course, even if he didn't say anything, you would probably enter the laboratory after this project.

.Anyway, keep up the good work."

Liu Hao raised his hand and patted Chen Jiang's shoulder, encouraging him.

Although he has not graduated yet, he often serves as a teaching assistant and has won the trust of his boss, so now Liu Hao is actually the de facto supervisor in the research group, and he can definitely count on his words.

Chen Jiang was a little surprised. Mainly because he didn't expect that he could end this boring job just because of Qiao Yu's words...

The little guy who is much younger than him has actually been able to decide his status in the laboratory. Although it may have been only a few months in advance, he is still somewhat moved and emotional.

When he was sixteen, he was still endorsing it every day. At sixteen, he could already decide his position in the laboratory. This gap is a bit too big!

…

Qiao Yu got on the car and didn't go back to Yanbei University at all. Instead, he turned directly into Huaqing University and ran directly to Qiao Xi's place.

There has to be someone to share this kind of thing with. Qiao Xi is naturally the best choice.

In the past, when Qiao Xi was in Star City, she had to make phone calls to communicate with the other party.

Now that I live close by, I happened to stay too late in the laboratory and was too lazy to go back to school, so I happened to go over and stay for one night.

Not to mention that the house Mr. Yuan assigned to Qiao Xi originally had two rooms. Qiao Yu felt that the subtext was to leave a room for him to live in at any time.

"Why are you here?"

Opening the door with the password, Qiao Yu saw Qiao Xi lying half on the sofa, looking at him in surprise.

The TV opposite is still on.

This made Qiao Yu feel that Mr. Yuan had not considered all aspects properly. For example, things like television, which were used for leisure and entertainment, were completely unnecessary.

So Qiao Yu ignored Qiao Xi's words and reprimanded him in a very sad tone: "Are you actually watching TV? Do you know what people should be doing at the right time? At your age, why don't you study hard? Are you planning to wait?

Will you work harder when you get older?"

Qiao Xi smiled, but it was a bit cold, which showed that PUA was not very successful.

Then Qiao Xi sat up straight, patted the seat next to her sofa, and said, "Come, sit here, and I will explain it to you."

Qiao Yu closed the door and moved a stool, sitting far away from Qiao Xi, and then said: "Forget it this time. Considering that you worked hard on the train today, I won't do it next time."

"Haha... So why did you come here?" Qiao Xi couldn't handle it and didn't bother to pay attention to Qiao Yu.

There is no way, the two of them are too familiar with each other.

Qiao Yu knew very well that as long as he took a shower and lay on the sofa, Qiao Xi would be too lazy to move unless he went to bed.

"Remember the last time I told you about the time I went to work as a consultant for a laboratory in the School of Chemistry and helped them solve a problem, and then they gave me two million in consulting fees?"

Qiao Xi nodded. Qiao Yu only told him in the middle of the year and showed off how rich he was now, so he naturally remembered it.

"Senior Brother Liu came to see me again. This time it's a horizontal project, but this time the problem is more troublesome. After staying in the laboratory until now, I thought it would be closer to Huaqing, so I just came to live with you."

"Oh, is the problem solved?" Qiao Xi asked.

Qiao Yu shook his head and said, "It's a little troublesome this time. It's not easy to handle. And I feel like they haven't found the right direction yet, and some are too impatient."

Qiao Xi thought for a moment and said, "Well... you're not here to help them find the right direction, right? Are you trying to earn a consulting fee again?"

"Why can't it be because of my friendship with Senior Brother Liu?" Qiao Yu asked back.

"Haha..." Qiao Xi chuckled twice, then glanced at Qiao Yu, her eyes seemed to see through everything.

So Qiao Yu admitted confidently: "Okay! I admit that I have this idea. But I won't make any money from consulting fees? Unless I'm stupid! This is legal income. The current economic situation is not very good. This kind of money can make a lot of money."

Of course you can't miss the opportunity.

And let me tell you, their laboratory still has competition this time. Party A not only entrusted them, but also entrusted another research institute, and they used two different plans.

In other words, if the other side produces results first, then all the efforts that Senior Brother Liu and the others have done during this period will be completely useless! So if I can help, maybe the consulting fee can be more."

Qiao Xi frowned and said, "We don't seem to be short of money now, right? Both Mr. Yuan and Director Tian have high hopes for you, shouldn't you focus on research? Can't making money wait until you grow up?"

Qiao Yu blinked, looked at Qiao Xi, and said doubtfully: "Isn't it right? Haven't you always inspired me to stand on the top of the mountain and look down on all living beings? I am now striving towards my ideal, and you can't drag me down mentally.

My hind legs!”

Qiao Xi was silent for a moment and said seriously: "Qiao Yu, is it possible that what I said at that time was that I hope you will be at the top of mathematics? And if you can become a person like Mr. Yuan, do you still need to consider making money?

?”

Qiao Yu retorted seriously: "No, no, no, Comrade Qiao Xi, you have to understand one thing. Top mathematicians are indeed not short of money, but it does not mean that they are rich.

In fact, even top mathematicians, even if they win the Fields Medal, are only academic authorities. This does not mean that they have enough power at their own disposal.

But money or capital is different. At the top of mathematics, I can only use my influence to decide some things, such as planning future research directions.

But if I can be very rich at the same time, or even control capital, then I can do more things. For example, there are so many powerful mathematicians in the world. Have you heard of anyone who has a private jet or private yacht?

Well, even if you don’t care about these things. Let’s talk about academics. If one day I discover that mathematics can be turned into cash and I need money to invest, wouldn’t I have to take advantage of others if I don’t have money?

So the real peak must be more than just achieving enough achievements in mathematics. Maybe in the future, my influence will be able to build a mathematics center, because someone is willing to invest in my achievements. But I can’t use my influence in mathematics to make people

Can someone help me build a community?

Besides, if I don’t think about how to make more money now, I will really become a math master in the future. What should I do if I see so much R&D funds?

You have to know that it is legal to make money as a consultant, but embezzlement of R&D funds is a crime and the cost is very high. So in order for me to become a clean and noble mathematician, I naturally have to earn more while I am young.

, are you right?"

"you……"

After saying "you", Qiao Xi didn't know what to say for a while. Although she felt that Qiao Yu was talking nonsense again, she didn't know how to refute.

However, Qiao Yu spoke again: "Actually, it is very simple to think clearly about this matter. Please recall now, why did I choose to learn mathematics in the first place? Isn't it because Teacher Lan told me that I can make a lot of money by learning mathematics well?

So doing mathematical research is just a means, and making money is the goal. After I make enough money, I may change my goal. After thinking about it this way, do you feel that the future is much clearer?

We still have a long road to life. There will be many scenery and temptations on this road, such as warmth and satisfaction! So we must always keep the original goal in mind so as not to go astray. Don’t put the cart before the horse! Remember that sentence

If you don’t forget your original intention, you will always be able to succeed.”

Qiao Xi turned her attention to the TV. The sentence "Don't forget your original intention, you will always be the best" not only made her feel weird to use it here, but also completely stopped her thinking about arguing with Qiao Yu.

There's no way around it, people who make money to support their families these days are always tougher.

Qiao Yu did not continue to argue with Qiao Xi on this issue. The person on the other side stopped talking. He moved to the sofa and leaned there diagonally, which was much more comfortable.

My eyes were fixed on the TV, but my mind was racing.

This is what scientific research is like. Where there is cooperation, there will naturally be competition. And this thing is not about who can take the lead just by looking at who works harder.

Especially the task of developing new materials like this often requires a bit of luck.

After all, as far as the current situation is concerned, this is a game of trial and error.

So now his task is to see if he can do anything during the entire trial and error process. It would be best to open a cheating device and then sell the cheating device.

Contribute his intelligence, and then get some negligible financial returns and friendship... and Liu Hao is worth investing in.

After all, he will be the junior supervisor of Professor Zhang who is very good at lateral projects.

This also means that there are many opportunities for cooperation in the future...

No, why did he only consider taking over work in one laboratory? If he could think of a more useful way, wouldn't he be able to make money from many laboratories?

For example, this obviously complicates the problem again...

No, actually it doesn’t seem that complicated…

Because he does not need to completely solve this problem, as long as he can give the research team a direction to solve the problem and help them reduce the cost of trial and error, at least he cannot make success or failure appear too metaphysical.

But then again, this doesn't seem to be a very simple matter. To put it bluntly, this type of experiments involving new materials lack direction. Even some laboratories that have published results actually have very old methods.

Moreover, the several materials science literature I read from Liu Hao today directly simplified the key experimental conditions and steps, without disclosing specific formulas or equipment adjustment details.

This part of the content is also placed in a controlled access database, which must be authorized to access. This can be regarded as adding some knowledge to Qiao Yu. It turns out that it can still be played like this...

It's a pity that he is not good at mathematics. If he had hidden the key proof steps, no one would be able to understand the paper.

…

After admitting that he was not omnipotent, Qiao Yu simply ran to take a shower and then went to sleep.

However, in the next week, Qiao Yu even suspended some work and spent most of his time looking for literature on similar research.

After all, you can really get a lot of information by reading some relevant industry review papers. At least you can understand the past and present of a project, and maybe you can find a solution.

Anyway, this is how Qiao Yu plays in mathematics.

Until Chen Zhuoyang took the initiative to call him.

"Junior brother, my mission here is basically completed. Is there anything else you need to verify recently?"

Well, a first-authored paper from one of the Four Major Schools was so terrifying that Qiao Yu never thought that Senior Brother Chen would take the initiative to ask for his life...

Qiao Yu immediately replied: "Yes, I will send it to your email later."

"Oh, okay, by the way, you can take a look at the work I have done recently, and I have also sent it to your email. Hey, don't tell me, now I feel more and more that your project is on track!

I recently took the time to read some literature, and I found that if higher-dimensional designs can be introduced, more problems may be solved. And I heard that there are already teams abroad that have begun to try to use the framework you built to do some optimization tasks."

Hearing this, Qiao Yu suddenly became interested and asked: "Oh? Is there any? Who did you listen to?"

"There are related papers on arXiv, but some of the articles above are very messy and I don't think I understand them at all. But I think some of the articles are pretty good."

"So fast?" Qiao Yu sighed with emotion.

"I can't help it, the influence is too great."

"Okay, let's do this for now. I'll give you the task later."

After saying that, Qiao Yu, who was not in the mood to chat with Chen Zhuoyang, hung up the phone.

Then I curiously logged into arXiv and searched for the generalized modal axiom system.

Sure enough, a bunch of related papers quickly popped up, most of which were recently published.

After casually clicking on a few articles and glancing at them, an article suddenly caught his attention.

"Dynamic System Analysis Based on Modal Axiom Optimization"

"Forehead?"

Seeing this title, Qiao Yu suddenly felt something hit his mind...

Really, for a moment, Qiao Yu felt that he must have been possessed by something recently. Why didn't he expect that his system of axioms could actually have application value?!
Chapter completed!