From small town academic to chief scientist

Seeing Zhou Yi asking, Sun Song directly printed out the list compiled today and said:

“Academician Zhou, everyone is on this list, including Bill Carr, the 18-year Fields Medal winner.

There are other big names in number theory or algebra, including Xiao Wanyi, who will also join.

Fields Medalist Effie Germanov, who works at Southern University of Science and Technology, will also join in the editing. "

Zhouyi said:

"They all have made great achievements in the field of algebra. Three Fields Medalists, plus Maynard, Donaldson and me, there are six Fields Medalists who compiled this textbook.

I feel that except for a few colleges and universities, it is difficult to have such terrifying power.

Moreover, we at Chongqing High Court also have many people who have made good achievements in the field of algebra. "

Sun Song said:

"Yes, this is an extremely huge force, and Shuimu University will also support us.

Professor Effie Germanov originally solved Burnside's conjecture, which is the oldest and most influential problem in finite group theory.

It was for this problem that he won the Fields Medal in 1994. "

Zhou Yi nodded. It only took one afternoon and one evening, but it was already very good to have so many people participating.

At least it can be compiled before other universities.

Sun Song continued:

"Actually, if our deadline is the day after tomorrow, more people may participate. That way we will be more certain."

Zhou Yi shook his head and said:

"No, actually the important thing is not to compile teaching materials, but to complete the work. We already have enough manpower.

If you include people from Shuimu University and the Chinese Academy of Sciences, there is no one with a more luxurious lineup than us. "

Sun Song said:

"Okay, I will announce the news tomorrow."

Zhouyi said:

"Actually, we can announce it now. I will be available tomorrow, the day after tomorrow, and the day after tomorrow.

Because the experiment on controllable nuclear fusion has been completed and the data is being processed. "

Sun Song said:

"Then today is April 5th, then there will be a big meeting on April 7th?

Two days in a row? "

Zhou Yi nodded and said:

“It takes almost two days to figure out a context.

That's it, I'll leave first and you can rest early. "

"Okay, Academician Zhou."

Sun Song said.

Zhou Yi nodded and left directly.

If you include the support of Qiu Chengtong, then the Chongqing High Court has seven Fields Medal winners participating in the compilation of this new textbook.

The Ecole Normale Supérieure in Paris has produced only about 10 Fields Medal winners in total.

Even if Purcell and others are here, Zhou Yi feels that the power in his hands does not belong to them at all.

And they also stopped the corresponding section of their scientific research assistant,

Most of the people here are young people, who can stay up late and have a good time, so there is no reason why they should be slower than others.

Sun Song quickly announced the results using his official account on Scientific Research Assistant.

Counting Yau Shing-tung, a total of 7 Fields Medal winners participated in this matter.

Secondly, many mathematical academicians from Daxia Kingdom have joined, and the gorgeous lineup is eye-catching.

People who eat melons commented below.

[By the way, there aren’t many such luxurious lineups in the world, right? 】

[Hey, brother Meng, my mentor is lucky enough to be selected. He won’t be back for at least half a year. I feel relieved. Ha ha ha ha. 】

[Don’t be complacent upstairs, you have a little guide. 】

[To be selected, you must be an academician disciple, right? 】

[It’s rare for Daxia to write a book about it, but it’s still about mathematics. You must work hard and don’t let other countries take the lead. The leadership in mathematics starts from these aspects! 】

The comments section was buzzing with activity.

In the next two days, Zhou Yi worked with Academician Li and others to process the data, while waiting for the arrival of Shuimu University, Germanov, Chinese Academy of Sciences and others.

Demanov is a Tsarist Russian, to be precise, a former Tsarist Russian.

Only after the current Tsarist-Russian alliance split did the country lose its power.

Now Daxia is one of the few independent countries. In addition, Southern University of Science and Technology hired a large amount of money, so it joined Daxia.

Otherwise, he would not have joined the Great Xia Kingdom.

In the next few days, all the selected professors and academicians from various universities arrived.

Although they can only leave a name on the leftover materials of the textbook, or leave a name on a certain theorem,

But it's much better than before.

In the past, it was not certain whether I could leave my name on a majestic unified textbook.

Now is an excellent opportunity, not to mention Zhou Yi is there to play with.

In two days, Zhou Yi barely figured out the context.

The remaining directions will be solved by Xiao Wanyi and others according to tasks.

Six Fields Medal winners gathered at Chongqing High Court, and the lineup was very gorgeous.

Zhou Yi's daily working time is also divided into two halves, half for compiling textbooks and half for controllable nuclear fusion.

However, the progress of controllable nuclear fusion was not as smooth as Zhou Yi expected.

In the laboratory, everyone looked very frustrated.

Obviously it is unacceptable that the results of five months will be like this.

Academician Li reported to Zhou Yihui in a low voice:

"Academician Zhou, due to the extremely high thermal stress produced by the sample during the LPBF process and the intrinsic brittleness of tungsten,

As a result, tungsten will produce more micro-cracks during the LPBF process.

This is the result of our experimental observation. Take a look. "

After speaking, Academician Li motioned to Zhou Yi to go and have a look.

Zhou Yi also saw the result clearly.

On the x-y plane perpendicular to the additive direction, there are many cracks both longitudinally and transversely.

On the x-z plane parallel to the additive direction, the crack propagates along the additive direction.

This is undoubtedly a bad result.

Academician Li said:

“In order to reveal the differences in microstructure of LPBF tungsten samples in different directions,

We performed EBSD characterization on the x-y plane and x-z plane.

The results were also unsatisfactory. "

Zhouyi said:

"Show me the results of the experiment, and I'll think of a solution later. We didn't expect this to go smoothly at the beginning.

If it goes well, it won't become a big remaining problem. "

After a while, a stack of A4 paper printed materials was delivered to Zhou Yi.

Zhou Yi sat on the stool and looked at it carefully.

The graphics are very vivid and should have been taken from the original screenshot.

The different colors in the inverse pole figures of the x-y plane and the x-z plane represent the orientation of each grain, and black represents the uncalibrated area caused by cracks.

While Zhou Yi was reading, Academician Li also said:

“Based on the grain morphology of the two cross-sections, it can be seen that LPBF pure tungsten is composed of columnar crystals with the long axis direction parallel to the additive direction.

The grain size observed on the x-y plane perpendicular to the additive direction is smaller than that on the x-z plane parallel to the additive direction. "

Grains? distributed?

Combinations and infinite sorting?

A trace of inspiration flashed in Zhou Yi's mind,

Isn’t this just a matter of piling up the balls?

Is the original Kepler conjecture similar?

Zhou Yi was stunned for a moment, and his inspiration began to accumulate with his memories.

Maybe it's a train of thought.

Academician Li on the side saw Zhou Yi stunned and couldn't help shouting in a low voice:

"Academician Zhou?"

Only then did Zhou Yi wake up.

said:

"Actually, it's much more than that. There are also consequences that you haven't seen.

The distribution of grain boundaries is also different. Our experiment this time was a trial and error.

But I do have some ideas. "

Another idea! ?

Everyone was surprised how fast and thoughtful it was.

Wouldn't it be so scary?

Although this experiment failed, the accumulated experience is self-evident, and this road can be dug deeper, maybe it can be achieved.

Zhou Yi said:

"I just don't know if it will work. I may have to continue trial and error."

Professor Chen on the side said:

"The essence of scientific research is trial and error. We are not ordinary people. We have enough funds and time to trial and error.

Ordinary trial and error only costs time. "

Zhouyi said:

“That’s right, and we didn’t get nothing.

From the density and thermal conductivity measurements of samples with different forming directions, we also know the data and the direction of future selection.

The density of the horizontal additive sample is 18.64 g/cm^3 and the density is 96.3%; the density of the vertical additive sample is 18.71g/cm^3 and the density is 96.7%. It can be seen that different additive directions have little impact on the density of the final formed sample.

Therefore, the cause of density direction is ruled out. "

After everyone thought about it, it was the same reason. Zhou Yi continued:

“From the perspective of thermal conductivity, the thermal conductivity along the additive direction is higher than the thermal conductivity in the vertical additive direction at any temperature, and at high temperatures (\u003e800°C), the thermal conductivity in the vertical additive direction The rate of conductivity decay is significantly accelerated.”

"What about us?"

Zhouyi said:

"No, although horizontal additives are fast, there are many cracks. I have to think about it slowly. Although the results of this experiment failed, the accumulated experience laid the foundation for our success."

Zhou Yi has failed many times in his application development for so long, but this time the price paid was a bit high.

It took nearly five months because of the time cost.

"It will take at most a month, and maybe we can be half a step ahead of the world and achieve staged success."

Zhou Yi said in a deep voice.

Everyone said excitedly:

"Okay. Shall we continue?"

Zhouyi said:

"Everyone will take a few days' rest for the time being. We have been busy since the Chinese New Year and haven't even taken a holiday yet. Let's take a few days' rest first.

Let me study the theory for a few days before continuing. "

It's okay to fail once or twice. If you fail several times, it will not only affect the morale of the army, but also affect Zhou Yi's own authority.

So this time Zhouyi is ready to improve the theory again,

The previous theory can only be used partially, but fortunately, failure does not result in nothing.

At least the future selection method is clear.

According to experiments, under a high thermal load of 15MW/m^2, obvious melting and spattering occurred on the surface of the vertical additive sample, and secondary cracking and a little spatter appeared on the surface of the horizontal additive sample.

For horizontal additive samples, since the heat flow direction is parallel to the additive direction, the thermal conductivity is higher, so it is more conducive to heat conduction.

The benefits of horizontal augmentation are very intuitive.

Moreover, for vertical additive samples, the heat flow direction is perpendicular to the additive direction, the thermal conductivity is small, and heat is difficult to transfer, causing surface heat accumulation and melting.

Therefore, for the future mono-block molding of the divertor, Zhou Yi will definitely give priority to the horizontal additive method for molding in the future.

After Zhou Yi left the laboratory, he returned to his office and began to think about it.

It is definitely not possible to just use commercial tungsten powder. Other materials must be added and combined in a special arrangement to overcome the disadvantages of horizontal additives.

Zhou Yi had a rough idea of ​​what it was.

Adding diamond and making a composite material of diamond film and tungsten may be able to meet the ideal requirements.

Zhou Yi thought it through and rubbed his head, feeling that it was very feasible.

It just needs to improve the specific content.

This has everything to do with plasma physics.

Zhou Yi is also considered a top figure in the world in this direction.

Using the system to redeem points can certainly shorten the cycle, but points are becoming increasingly difficult to earn, so save as much as you can.

Just for this key technology, Zhou Yi guessed that the points would be at least 6,000-8,000.

Zhou Yi was ready to give it a try and silently said to the system:

"System, how many points are needed to redeem high heat load material technology?"

The cold voice of the system sounded in Zhou Yi's mind.

"Ten thousand points."

Ten thousand points?

My special code! ?

However, this is the preferred plasma-oriented material for Tokamak fusion reactors, and it is one of the three main aspects that will determine its application in the future.

It’s understandable that the points are high.

Zhou Yi thought about it again and said:

"How many points are needed to evaluate the performance of composite materials of diamond film and tungsten?"

The system's cold voice said:

"3000 points."

Zhouyi:...

Trial and error in the past few months was equivalent to earning thousands of points, and what Zhou Yi exchanged was not all the technology, but the evaluation.

This evaluation can be done by yourself with money and time, so Zhou Yi does not want to spend extra points to redeem it.

Controlled nuclear fusion still requires a lot of sophisticated technologies.

If you can save, save, and there will be more technologies in the future. If it is used up in the direction of controllable nuclear fusion, it will be inconvenient in the future.

In the next few days, Zhou Yi spent time perfecting his ideas, enriching his theories, and then experimenting.

In the theoretical direction, Zhou Yi can also let them conduct numerical analysis first to verify the rationality first.

Finally, start experimenting.

The money spent on experiments can also be saved.

The next day, Zhou Yi went to the Institute of Mathematics in the morning to compile a book on the unification of algebra and number theory.

As for the title of the book, it has not been decided yet. When all the work is almost done, it will be decided.

You can determine the name.

The morning passed quickly, and just when we were having dinner together at noon,

Maynard said to Zhou Yi:

"Zhou~. Let me tell you some bad news."

Zhou Yi was puzzled and said:

"What bad news?"

Maynard said:

“Some mathematicians in Europe have united and are preparing to jointly compile textbooks on the unified direction of algebra and number theory. We must seize the time.

Otherwise, they may be the first to do so. "

Zhouyi:...

"How do you know it?"

Zhou Yi asked.

Maynard said with a loyal look:

"They informed me and asked me to go back, but I refused. Later they wanted me to tell them our progress, but I still refused.

Zhou~, do you think I am loyal enough? "

Hearing this, Zhou Yi was silent for a moment and said:

"You must be loyal, but the European side is a bit too hateful."

"Actually, it's not just Europe. Chou Country is even more radical. The math center is in Chou Country, and they don't want the math center to be transferred to Daxia Country.

So the most anxious thing is Chou Country. "

Zhouyi said:

"Okay, I will also secretly ask about the progress of Chou Country. In addition, I will spend more time doing this every day. The controllable nuclear fusion will be a little slower."

Controlled nuclear fusion has a new direction, and we are not in a hurry and do the most important things first.

PS: I’m still coding even though I’m in the hospital. Please call me a model worker!