For Yang Xiaoman's miraculous operation, Xu Mang only looked at a loss, saying that if he bought the flowers himself, would he die? I seem to be this kind of person.

“...”

"I remember that you didn't want me to buy you a car?" Xu Mang pretended to be indifferent and said, "When I make money, I'll help you buy it." ”

"Cut!"

"You miser. Yang Xiaoman lay on Xu Mang's body and said disapprerovitically: "Always use some reasons to fool me, besides, the car I want to buy is quite expensive, and the money you earn from your thesis may not be enough." ”

"Hey, hey!"

Xu Mang suddenly hugged Xiao Man and said with a smile: "I'm researching a material that can be sold for a lot of money." ”

Yang Xiaoman glanced at him and said calmly: "I believe you are a ghost, you bastard is very bad." ”

"Really!"

"I'm responsible for the research and development of a component material for a fusion energy reactor, and then they procure it. Xu Mang said with a proud face: "Am I awesome?"

Yang Xiaoman frowned, ruthlessly breaking Xu Mang's illusion: "You are a person who is engaged in theoretical physics, do you know what materials are? Many of your things are calculated by pure theory, but you are now facing the product of experiments, will you be a big fool?"

Xu Mang shook his head: "I use the quantum database I just developed to calculate, and calculate the possibility from a theoretical point of view, about experiments... Someone else will do it. ”

"Humph!"

"What's that... Can you teach me quantum mechanics?" Yang Xiaoman shrank in Xu Mang's arms and said with a squeak: "I'm not being sent to graduate school, but I want to graduate soon, and I'm currently writing a thesis on the future of fission economy and fusion economy based on quantum economics." ”

Yes?

What's that?

Is economics all about quantum mechanics?

Xu Mang looked at Xiao Man in his arms with a confused expression, he didn't even understand what quantum economics was, and what fission economy and fusion economy were behind were even more unheard of.

"What is the quantum economy?" asked Xu Mang.

"Stupid!"

This is the stock market option pricing model established by Scholes, which won the Nobel Prize in economics, and later game theory experts based on quantum economics to launch the quantum economic model. Yang Xiaoman explained: "This is the most avant-garde model at the moment. ”

Xu Mang still didn't understand, and asked curiously, "I still don't understand." ”

"It is normal for you to understand the discipline of studying and exploring the laws of quantitative change of economic things. Yang Xiaoman raised his head and said silently: "In the future, take an hour every night to help me complete the thesis together, and you will be responsible for the part of quantum mechanics." ”

"Oh..."

Following

Xu Mang got up at six o'clock in the morning, let go of Xiao Man's clenched hand, bought a little breakfast after putting on his clothes and pants, and began his own work to establish a systematic framework from the performance requirements and conduct relative research according to this framework.

According to the performance requirements, Xu Mang can deduce that this part may not be a single material, it needs a combination of a variety of materials, and the parts composed of the connection process roughly need three materials, which meet the requirements of metal materials, composite insulation materials and external insulation reinforcement materials, of which composite insulation materials should have relative mechanical property requirements.

Followed by

Xu Mang made a table of the performance parameters of metal materials and composite insulating materials, and considered the comprehensive indicators of performance from four perspectives: elastic modulus, shear modulus, shrinkage and Poisson's ratio.

"Huh?"

"Why are you so early?" Yang Xiaoman glanced at Xu Mang, and said with a little dissatisfaction: "Don't make a sound, I don't have class today... Remember to order takeout at noon. ”

"Hmm. ”

Xu Mang responded casually and continued with the work at hand.

After having the performance parameters, the following is to plan the design standards of metal materials and composite insulating materials, according to the requirements of the document, Xu Mang first has to calculate the strength of the two materials, yield stress, allowable stress, compressive strength in the direction of layer thickness, shear gravity...

But...

Xu Mang found himself confused, although he has the ability to integrate the system, but this has already involved engineering knowledge, how to calculate the allowable stress?

I'm sorry... I don't even know the formula.

"It's over, it's over..."

"I have to have a professional materials science student who can help me do the calculations. Xu Mang thought for a while, this high-achieving student must be in school for two and a half years, and what else does he have to know, right, the minimum standard must be a member of the basketball team of Fudan University.

Walk to the balcony,

Xu Mang made a life-saving call to Liu Zhuo, a former member of the research team.

"Liu Zhuo?"

"Professor Xu... It's only six o'clock?" After receiving Xu Mang's call, Liu Zhuo's tone was full of helplessness, and he said, "Do you have anything to do with me?"

"I remember that you have been in school for two and a half years, right?" Xu Mang said with a smile: "I still remember that you formed a RAP band when you were a freshman, you were the lead singer of the band, and you were also a member of the basketball team?"

Liu Zhuo said: "Yes. ”

"Say no more!"

"Professor Xu needs you!" Xu Mang said seriously: "Come or not!"

Liu Zhuo smiled bitterly: "Professor Xu... I've been really busy lately. ”

"What are you busy with?" asked Xu Mang.

"I'm busy with classes. Liu Zhuo said: "I may not have enough credits. ”

"Don't panic!"

"Director Liu Guofang, the head of your department, and I are old friends. Xu Mang said with a smile: "As long as I open my mouth, he won't let people go, uh... Wait a minute, I'll go to Director Liu to ask you to come over, and by the way, I will get some benefits from him for you. ”

Liu Zhuo suddenly became interested, and hurriedly said, ", Professor Xu, is it really?"

"Remove the word "mo", and it's all the real thing. Xu Mang said: "Do you know the formula of allowable stress?"

"Yes!"

...

Nine

Xu Mang came to the director's office in the building of the Department of Materials with the documents.

"Hey, hey. ”

"Director Liu?" Xu Mang came to Director Liu with a smile, and his professional smirk betrayed Xu Mang's purpose at the moment, and said, "Is Director Liu busy?"

“...”

There is a legend circulating in Fuda, Xu Mang smiled, it must be no good.

Director Liu looked at Xu Mang's professional smirk, was speechless for a while, and asked, "It's very busy." ”

"Oh..."

"Director Liu, can you lend me someone?" asked Xu Mang.

"Who?"

"Liu Zhuo. ”

"Liu Zhuo?" Director Liu thought for a moment, nodded and said, "Hmm." ”

originally thought that this would be a tug-of-war, but Director Liu just thought for a moment and agreed directly without asking, Xu Mang felt that there was only one reason to explain why, and it was estimated that Director Liu didn't know who Liu Zhuo was.

"What's that... Liu Zhuo doesn't have enough credits, can he be exempted from the exam this semester?" asked Xu Mang.

"Xu Mang?"

"You're going too far!" Director Liu said with a black line on his face: "There is no such request as you." ”

Xu Mang expected that something like this would happen, so he took out a document and said to Director Liu: "Director Liu... This is a research project given to me by the International Nuclear Energy Agency, and you must agree to it, otherwise you will delay the happiness of all mankind. ”

I...

This...

Director Liu glanced at the cover of the document and didn't know what to say for a while.

"How did you get involved with this agency?" asked Director Liu.

"When I was at NTU. Xu Mang said: "Anyway, I can only show you the cover, some of the contents in it are confidential, I signed the contract, Director Liu... This exempt thing... How so?"

Director Liu said helplessly: "It is impossible to be exempted from the exam, but under reasonable conditions, it can be adjusted appropriately, you know what I mean, right?"

"Understood!"

"Hey, hey..."

After solving Liu Zhuo's problem, he called Liu Zhuo and told him the good news, of course, in Xu Mang's narration, it was naturally an artistic rendering.

"it!"

"Professor Xu... You're just amazing!" Liu Zhuo said excitedly after knowing that he had obtained the license: "We are really members of the International Nuclear Energy Agency?"

"Can this be fake?"

"I'm waiting for you in the old lab, this is my personal lab that I applied for. Xu Mang said: "Hurry up, we have limited time!"

"Hmm!"

moment

Liu Zhuo came to the laboratory.

Xu Mang didn't talk nonsense, and directly handed over all the calculation problems to Liu Zhuo, and repeatedly emphasized confidentiality and accuracy, especially in accuracy, only 100% correct, and there can be no mistakes.

"Professor Xu... This can't be wrong, a bit too much. Liu Zhuo said with a worried face: "I'm afraid that my ability is limited. ”

"It's non-negotiable. Xu Mang said solemnly: "In short, you must make no mistakes, it is related to nuclear fission, so there is only success, no failure." ”

ultimately

Liu Zhuo could only unconditionally agree to Xu Mang's request, and began to calculate metal materials and composite insulating materials, under the framework of Xu Mang, Liu Zhuo had to calculate the six strengths of the two materials.

"Huh?"

"Set formulas?" Xu Mang stood on the side and watched for a long time, and found that Liu Zhuo was doing all the things of setting formulas, and suddenly said with a dark face: "It's so simple?"

"Hmm!"

"It's okay. Liu Zhuo said: "For example, the maximum equivalent and allowable stress of metal materials is determined according to the formula Sm=Min(2/3Sy, 1/3Su), where Sy and Su are the maximum yield stress and maximum strength respectively. ”

"According to the performance indicators you gave, the maximum strength of the metal material at a temperature of 4.5K is 1440MPa, the yield stress is 450MPa, and the allowable stress is 300MPa..."Liu Zhuo continued: "At a temperature of 300K, the maximum strength is 500MPa, and the yield stress is 170MPa..."

After a pause,

Liu Zhuo said: "According to my understanding of the material, this metal material is generally nitrided 316 stainless steel. ”

"What about composite insulation?" asked Xu Mang.

"The words of composite insulation... In my calculations, the probability is fiber-reinforced composites, which are characterized by non-conductivity, high mechanical strength, and corrosion resistance. Liu Zhuo said: "There are many kinds of fiber reinforced composites, but I prefer GFRP materials. ”

Xu Mang: Embarrassed

it!

Isn't this FRP!

The crowd is looking for him thousands of times.

Suddenly looking back, the man was there, and the lights were dim.

"Does it need to be modified?" Xu Mang asked: "The performance indicators of FRP don't seem to meet the requirements, right?"

"That's right!"

"Not only is the FRP modified, but also the nitriding 316 stainless steel also needs to be modified, otherwise it is impossible to meet your performance index requirements with the performance of raw materials. Liu Zhuo said seriously: "Professor Xu, there is still an important information missing from your performance index requirements, as if you have not given a specific direction. ”

"For example, this modulus of elasticity lacks the direction of thickness, axial and winding. Liu Zhuo said.

Xu Mang nodded: "I'll make a new revision later, today Wednesday... This weekend, the two of us will work out the materials, and you will do the modification, do you have any requirements for the software?"

"Yes!"

"I would like to see fluid dynamics analysis on my quantum analysis software. Liu Zhuo said embarrassedly: "Professor Xu... I know this is a bit excessive, but one of your requirements is airtightness under low temperature stress loads..."

Xu Mang thought for a while and said calmly: "This request is not too much at all, there will be this function on the software tomorrow!"

Liu Zhuo: ???

This...

Are you sure?

No kidding?

......