After lunchtime, Lu Zhou returned to the library and sat down.

Thinking back to what Professor Tang said, Lu Zhou calmly looked at the data and scratch paper spread out on the table, and a thoughtful expression appeared on his face.

Mathematical modeling......

The tip of the pen lightly touched the scratch paper, and Lu Zhou's eyes searched for the spread out A4 paper.

The data provided to him by Senior Brother Qian is very comprehensive, but in other words, it is messy.

There is only one path to the truth, and useless data will not broaden the researcher's horizons, but will become an obstacle to the truth.

"The problem is that CNTs have an effect on the hydration reaction at an early age when they are incorporated into Portland cement, so only the data from sample 2 is useful."

"Comparing the FTIR images of samples 2 and 4 with samples 27 shows that the effect is not related to the surface functionalization of CNTs materials, and the experimental data from samples 24 to 28 can be deleted......"

Crumpling up a few pieces of A4 paper and throwing them into the trash can in the corner, Lu Zhou wrote two lines of formulas on the paper.

【Di={k²CMe/（2dμ）}·（2Pw/ρw）】

【Vi=（2Pw/ρw）^n】

Looking at these two lines of formulas, the corners of Lu Zhou's mouth curled up with a trace of smug arc.

It's a good start......

It may not be his area of expertise to let him delve into the effects of carbon nanotubes on matrix materials, but it would still be possible to mine data from FTIR images and use mathematical tools to analyze the patterns.

As the minutes ticked by, the sky outside the window gradually darkened.

Throughout the afternoon, Lu Zhou completed the preliminary collation of the data, and established a simple mathematical model according to the idea of mathematical modeling.

This set of mathematical models includes the influence of CNTs materials in multiple samples on the parameters of Portland cement hydration reaction rate, reaction temperature, sample mechanical properties, FTIR characteristic peak area, etc., as well as the relationship between specific parameters.

When setting these formulas, Lu Zhou directly quoted his paper published in the Bulletin of Theoretical and Applied Mathematics. There are several generalized theories about Fourier inverse evolutionary transformations, and it is found that a large amount of computation can be unexpectedly saved here.

With the establishment of the first mathematical model, the difficulty of the originally complex problem has dropped by one level.

Lu Zhou leaned back in his chair and stretched.

Staring at the Matlab interface that opened on the screen, his pupils rekindled with a strong sense of battle.

Next, he will use the code to compile the model into a program!

And then with the help of the power of the computer, dig out the "invisible" data that is buried!

……

It seems that he has regained the state he was in when he wrote the Zhou's conjecture proof paper, and for three whole days, Lu Zhou maintained a life in the library and the dormitory. Aside from showing up in the cafeteria on time for meals, this regular routine has hardly changed anything.

However, even so, as of the evening of the third day, Lu Zhou had only completed the establishment of the second set of models, and had just used an iterative algorithm to obtain the gradual law of the influence of CNTs on the hydration reaction temperature at each age when mixed with Portland cement.

There are three other unknown parameters to be calculated.

In terms of overall evaluation, Lu Zhou has only completed 60 to 70 percent of the work.

But now that we've gotten to this point, the rest of the work is easy, just keep calculating, and calculating!

At half past five, Lu Zhou threw down the pen on the table and went to the cafeteria.

When I was walking on the road, I thought about it and called Senior Brother Qian.

As soon as the phone was connected, an urgent voice came from the other end.

"How's it going?"

Resisting the urge to yawn, Lu Zhou rubbed the bridge of his nose and replied, "Give me two more days, and I will definitely be able to do it in two days." ”

The difficulty of the semi-scientific competition of mathematical modeling is still incomparable with that of such a serious scientific research project. And the most important thing is that he has no teammates, from mathematical modeling to programming, and finally thesis writing, all the work can only be done by himself.

At the time of the Mathematical Modeling Competition, there was a programming expert who could help write programs and make diagrams with SAS, as well as a monster who could bring food and shout 666.

Thinking of this, Lu Zhou couldn't help but sigh in his heart.

Sure enough, there is still a lack of an assistant to do chores......

“…… You can't do it or not. Senior Brother Qian's tone was full of suspicion.

He didn't doubt Lu Zhou's strength in the field of mathematics, after all, the proover who proved Zhou's conjecture was under the name of this bull.

However, the strength in the field of mathematics cannot be directly equivalent to the scientific research ability in other fields, and many people have engaged in pure number research for a lifetime, and their mathematical skills are perfect, but their lifetime achievements are only stopped in the field of pure numbers.

Although this is nothing, after all, there is a specialization in the art industry, and not everyone is an application talent.

But at this juncture, he didn't want to see Lu Zhou suddenly drop the chain.

The corners of Lu Zhou's mouth curled: "Hehe, if I can't do it, you'll know in two days." ”

“……”

This hehe, very spiritual.

Although he had doubts in his heart, Senior Brother Qian didn't say anything.

I've been waiting for three days, are there still two days left?

The only thing that made him and Professor Li Rongen feel uneasy was that there was something wrong with the silence on the side of the big recently, as if they were holding back a big move. There are many overlaps between the two sides in the research project of "carbon nanotube modified cement-based composites", and even the matrix material in the project is Portland cement.

It's very panicked.

In particular, their project is stuck in a bottleneck......

After hanging up the phone, Lu Zhou, who had already walked into the cafeteria, had just stuffed his mobile phone back into his pocket when suddenly another call came.

I took out my mobile phone and saw that it was Wu Fatzi calling.

Pressing the connect button, Lu Zhou took out the rice card and swiped it on the card reader in the bibimbap window, yawning and saying.

"Hello?"

Wu Fatzi: "What have you been busy with lately?" I haven't seen you for a few days. ”

Lu Zhou thought for a while and said: "The scientific research projects of the Academy of Physics are related to carbon nanotube materials. ”

Wu Fatzi: "666, Carbon Nanotube Materials Research Institute?" Awesome! ”

Lu Zhou was surprised and asked, "You know?" ”

Wu Fatzi smiled: "Didn't you relocate the laboratory last year?" I took someone to install the broadband and routers they have. ”

Lu Zhou: "......"

Wu Fatzi coughed lightly and continued: "Tomorrow afternoon, I plan to gather people for a meeting to discuss the promotion plan after the new version is launched, do you have time to come over?" ”

"I don't have time, I've been too busy these days," Lu Zhou stuffed the meal card back into his pocket with the phone between his arms, took the plate from the canteen aunt's hand, and said, "Or...... Can you organize that meeting yourself? ”

Wu Fatzi couldn't cry and laugh and said: "Big guy, don't you be the shopkeeper from the beginning?" ”

Lu Zhou also felt that this was a little bad, but he really didn't have time, so he coughed dryly and said, "This is not a stage for you, not to mention that I can't give any good opinions when I go." Come on! I am optimistic about you, the future general manager! ”

Wu Fatzi: "......?" ”

There is no problem is no problem, and he also thinks that he is the material of the general manager.

However, Lu Zhou's last few words.

How does he feel a little déjà vu?

……

Time flies.

In the blink of an eye, another two days passed.

Looking at the stack of scratch paper piled up in the corner of the desk, Lu Zhou, who was sitting in the empty classroom, felt infinite emotion in his heart.

It's already one o'clock in the morning.

After the library closed, he searched for an empty classroom with his computer bag on his back and worked hard for several hours before finally completing the final steps.

How much he paid for this project, I'm afraid only he knows in his own heart.

Lu Zhou sighed in his heart, entered several sets of data into the computer, and with the help of the computer's powerful computing power, completed the final blow to the enemy's spring.

Then, several sets of data are imported into the formula......

Suddenly, Lu Zhou stared at the scratch paper and was stunned, and unconsciously stopped the pen in his hand.

Looking at the numbers on the scratch paper, and then at the numbers on the computer screen, a strange expression appeared on his face.

α=0？

That's impossible!

No, wait......

Think about it another way.

If his calculations are correct, the final α parameter is indeed equal to 0.

This means ......

When CNTs were incorporated into Portland cement, they did not have any effect on the hydration reaction at the early age!

What the hell......

-

(PS: The conclusion and proof idea comes from the 2017 edition of the Journal of Composite Materials Issue 03, the time point of the novel is only 2014, and it should be regarded as "black technology" relative to this point in time.) In addition, a digression.,After all, science fiction,For the rhythm of the plot,There will definitely be artistic processing in some places.,I can only be close to reasonable in the field I know.,In the future, as the plot progresses, there will definitely be more and more black technology.,When the time comes, I hope the bigwigs will pat it.。 Well, I'll say this time as a digression, and if you say more, you will leave it to the May Day testimonial, and then talk about it, the important thing is to ask for recommendation votes~~~~)