The Red Era, the Opening University Speech

Chapter 124 College Students' Production and Construction Activities

Shao Yanan turned around, saw that it was him, laughed and said:

"You are such a busy man, you actually forgot about this!"

"Every year at this time, college students across the country have to participate in production and construction activities."

"Haha, look at my memory. I even forgot about this." Li Mu quickly laughed and pretended to have forgotten about it.

If it was in the past, his not remembering it would naturally arouse suspicion.

But after staying for so long, as long as Li Mu doesn't do anything too outrageous, there won't generally be any problem.

Moreover, Shao Yanan knew that he was a person who "turned a deaf ear to the world outside" and would not be suspicious.

……

Afterwards, Li Mu was teased by Shao Yanan for several times before he was able to leave.

Walking into the school, there are banners with big words everywhere:
“Don’t be afraid of hardship or fatigue, and take root in various places to carry out construction!”

"Prepare for war, prepare for famine, for the people!"

……

When we got to the classroom, the students who usually studied hard were discussing production and construction activities, which was unusual.

In a corner of the classroom, Zhang Kai and a few other boys were discussing excitedly. When they saw him come in, they hurried over and said,

"Li Mu, guess where we will be assigned this time?"

Faced with this question, Li Mu was slightly stunned.

How could he know where this production and construction activity would go?

Fortunately, Zhang Kai couldn't wait for his answer and said, "It's best to go to a steel mill, bicycle factory, tractor factory or similar factory."

"We have studied mechanical engineering for so long, and it is time to go to these factories to put our knowledge to good use."

"I dug the reservoir for three whole months last year, but got nothing except blisters on my hands. I hope I won't be so unlucky this year!"

Listening to Zhang Kai's complaints, Li Mu couldn't help but smile.

However, this did let him know one piece of information: this production and construction activity might last as long as three months.

"If I go to participate in production construction, I won't be able to go to the Semiconductor Research Institute for such a long time. It's a waste of time." Li Mu thought to himself.

In three months, there are so many things he can do.

But in this era, if you want to be special, you will seem out of tune with the times.

Just as he was thinking about whether to delay for three months to further integrate into the era and experience what the Red Age was like, Wang Ya walked in from outside the classroom holding a book, walked to his side, and said:
"Professor Wang asked you to go out for a moment."

After saying that, she walked to her seat, took out her book and started studying.

Li Mu couldn't help but admire that spirit.

Zhang Kai, who was standing by, also heard the news and asked curiously, "Why did Professor Wang call you?"

"I'll go out and take a look." Li Mu waved his hand and walked out of the classroom.

Zhang Kai hesitated for a moment, but still didn't follow him out.

What if it's some confidential matter? Wouldn't it be embarrassing for him to go there?

Thinking of this, he sat back in his seat and started working hard again.

He encouraged himself in his heart: "One day, I will catch up with you!"

……

As for Li Mu, after he walked out of the classroom, Professor Wang waved to him and took him to the teacher's office next door.

His mysterious look almost made him think that there was some urgent mission.

After Professor Wang came in, he asked Li Mu to sit down on the chair first, and then asked: "Do you have any ideas about this production and construction activity?"

This question made his heart move slightly.

"Why do you ask?" Li Mu asked.

Professor Wang smiled and said, "Let me be frank. The dean and we have discussed this in a meeting and hope that you will not participate in this production and construction activity."

Li Mu was stunned. He hadn't made a decision yet, but the school made the decision for him?

"You have a lot of research tasks to do right now. If you leave for three months at once, it will probably have a significant impact on your research progress."

"Of course, the most important thing is that production and construction have certain risks. Every year, people are injured or even killed for various reasons. We don't want you to take risks."

Listening to his words, Li Mu was silent.

With the school's arrangement, the desire to attend prevailed in his mind.

Thinking of this, Li Mu said, "Professor Wang, I think I should still go and not make this special."

“No matter what job I do in the future, I should not be divorced from the masses. Only by personally experiencing their difficulties can I remember my mission more firmly.”

"Besides, all my classmates went, but I didn't. This is not conducive to the harmonious relationship between classmates."

Upon hearing this, Wang Shoujue looked at Li Mu with admiration.

Only those who have experienced it can understand how hard and tiring production and construction are.

But Li Mu refused this preferential treatment and took the initiative to participate, which shows that he has extremely noble qualities.

He hesitated for a moment and said, "It's a good idea for you to have this idea, but whether you want to go or not is not up to me to decide."

"I will report this matter to the dean and see the result of their discussion."

……

After leaving Li Mu, Professor Wang went directly to Qian Shuyan's office.

After telling the story, Qian Shuyan was both happy and worried.

What makes me happy is that Li Mu did not take credit for himself, but what worries me is the risks in production and construction.

Professor Wang at the side could not help but say: "Dean, I think we can let him go. At most, we can ask the unit he goes to to take care of him."

"I do want to, but do you think it's that easy?" Qian Shuyan shook his head and smiled helplessly, "To tell you the truth, this is an order directly from the Ministry of Culture and Education."

Professor Wang was surprised to hear that it was the Ministry of Culture and Education's intention.

He thought that the dean was secretly giving Li Mu some preferential treatment, but he didn't expect it was the Ministry of Culture and Education's idea.

"Wait a minute, I'll call the Ministry of Culture and Education." Qian Shuyan thought for a moment and picked up the phone on the table.

Enter the number, shake it with your hand and dial it.

After the call was connected, he directly said that he wanted to find He Baiyi and report the matter: "Hello, leader, there is a situation here..."

……

After listening to the phone call, He Baiyi admired Li Mu's determination not to seek special treatment, but he also couldn't help feeling a little headache.

Asking a highly productive scientific researcher to dig a reservoir is just nonsense!
After thinking about it, He Baiyi stood up and decided to go talk to Li Mu in person.

But just as he stood up, he saw his secretary come in to report, "Leader, Leader Qiu from the First Ministry of Machine Building is here and said he has something to discuss with you."

Hearing the news, He Baiyi was stunned.

What happened that required Leader Qiu, who was at the same level as me, to come here in person?

He stood up quickly and went out to greet them. As soon as he reached the door, he heard a hearty laugh.

He Baiyi smiled as he looked at Leader Qiu who was striding towards him, and asked curiously, "What brought you here, Old Qiu?"

"Haha, why are you in such a hurry? I came here and you can't even let me drink a sip of tea?" Leader Qiu laughed.

He Baiyi shook his head and laughed, then quickly called Leader Qiu in, and asked his secretary to make tea.

After taking a sip of tea, Leader Qiu spoke up, "Aren't there recent production and construction activities for college students? Have you arranged your list?"

Generally speaking, college students who participated in production and construction activities, those who studied agriculture went to the countryside to farm, those who studied engineering went to build roads and bridges, and those who studied mechanics went to make steel and build machines.

It can not only fully utilize the students' knowledge, but also serve as a teacher for the workers, killing two birds with one stone.

But there were also some surprises, for example... those who were assigned to dig the reservoir.

When He Baiyi heard Leader Qiu's question, he was a little surprised and asked, "Why, you came here for something like this?"

Leader Qiu said: "Of course I won't ask about other things, but regarding the assignment of Li Mu..."

After hearing this, He Baiyi finally understood.

It seems that the Ministry of Machine Building also wants Li Mu to go over there!
……

Li Mu rejected Professor Wang and returned to the classroom.

The class counselor came over specially to introduce them to the production and construction activities of this semester.

The time will be one week later, and we still have to wait for the assignment as to where each person will go.

This assignment is a bit of a trap. Although Li Mu is not opposed to digging reservoirs and building bridges, it will inevitably cause some trouble if he is assigned to a faraway place.

“I don’t know if Professor Wang can help me by not assigning me to a place closer to home.” Li Mu thought.

"Forget it, no matter how far or near, just think of it as a different way of exercising!" Shaking his head, Li Mu stopped dwelling on it.

He opened the information on integrated circuit computers and continued to study.

He has almost figured out the CPU part, but it is still difficult to make it.

The rigid requirements of ultra-large-scale integrated circuits mean that it will take a long time for integrated circuit computers to come out.

……

In the afternoon, after school.

After Li Mu finished his meal in the cafeteria, he pushed his bicycle out of the school and prepared to go to the Semiconductor Research Institute.

I happened to meet Wang Ya at the door.

"What a coincidence." He greeted.

Wang Ya turned around and saw that it was him. A slight smile appeared on her tense little face.

"Come to think of it, you go to the Semiconductor Research Institute every day, and it's surprising that we just met today." Li Mu said with a smile.

Wang Ya thought for a moment and said, "You go there after you eat at school every day. I go to the Semiconductor Research Institute to eat, so of course I won't meet you."

The study of the J language and the research on the trajectory of the D bullet made her work like a fully wound clock every day, unable to stop for a moment.

She didn't want to stop either.

Li Mu was slightly embarrassed and was about to explain, but Wang Ya said sympathetically: "I know, you get hungry so quickly every day, you definitely can't wait to go there to eat."

"Ahem, that's true." Li Mu coughed twice and asked, "How's the progress of your research on the trajectory calculation of the D-bullet?"

Hearing his question, Wang Ya's face turned slightly red.

She lowered her head slightly and said, "There has been no major progress."

Having been in the Semiconductor Research Institute for a long time, she knew too well the speed of Li Mu's research.

Problems that can stump a group of researchers and expert professors can always be solved quickly in Li Mu's hands.

Compared to others, my research speed is as slow as a turtle.

"It's okay. You're alone, so it's normal to go a little slower." Li Mu smiled. "If you don't mind, tell me about it?"

Although the calculation of primary D-ball trajectory is not a high-tech research topic, it is also indispensable to the national defense industry.

Wang Ya didn't hesitate and said directly:
"I have encountered some difficulties in mathematical modeling. I am not able to build a model that can estimate the actual trajectory and ensure the real-time and accurate calculations."

Although mechanical engineering also requires learning mathematics, there is still a considerable gap compared to students majoring in real mathematics.

What's more, not to mention the students of the mathematics department, even the teachers of the mathematics department may not be able to accomplish this.

Li Mu flipped through the information on D-bullet trajectory calculations in his mind, found the part about mathematical models, and then said:

"A mathematician in Hungary invented a Kalman filter that can estimate the state of a dynamic system from a series of incomplete and noisy measurements."

"I'll give you his algorithm, you can study it."

As Li Mu spoke, he took out a piece of paper from his bag and wrote down the formula of the Kalman filter.

However, when he came to the nonlinear part, his pen paused.

Kalman invented the Kalman filter in 60, but it is only applicable to linear systems. The nonlinear system was improved later.

But I've given it all, I can't just give half.

In the end, Li Mu wrote the complete extended Kalman filter.

Looking at the densely packed formulas, Wang Ya's eyes widened with black and white, and she couldn't help asking:

"When did you become so good at math?"

"What do you mean by proficient?" Li Mu smiled and said, "I went to the library of Wudaokou Institute of Technology before and saw it by chance."

Worried that Wang Ya would think he was good at math, Li Mu added, "I wrote down these formulas at the time. I didn't really understand much of them."

"If you want to study it, you need to put in more effort yourself."

Mathematics is a bottomless pit and he doesn't want to jump into it.

……

Came to the Semiconductor Research Institute.

After saying goodbye to Wang Ya, Li Muxian went to the CMOS research group where Huang Xinhua was.

Faced with this rather advanced technology, Huang Xinhua was obviously a little troubled. He sat in a corner of the laboratory with a very serious expression.

Li Mu greeted him, and he came back to his senses, and hurried over and said:

"Look at the formation problem of this active region. The stress between SIN and Si is very large, which will inevitably cause surface damage to the latter."

Li Mu took the experimental report handed over by Huang Xinhua and found that he could solve this problem by himself without any data. So he thought for a moment and said:

“In fact, the problem can be solved by growing a layer of SiO between SIN and Si as a stress buffer layer. However, its thickness will affect the ability of SIN to serve as an oxidation mask layer, so the thickness needs to be controlled at 0.6um.”

Huang Xinhua continued: "There is also the problem of leakage circuits between transistors. They interfere with each other, causing an increase in DC power and even changing the logic circuit of the device."

"We can use silicon nitride as a flood to try to achieve selective oxidation of silicon. While forming the active transistor area, we can also grow a thick oxide layer on all other heavily doped silicon areas." Li Mu replied.

"Good idea, take a look at this..."

……

Inside the laboratory, members of the CMOS research team watched Li Mu answer questions for Huang Xinhua. Except for those who were really busy, all the others came over to listen.

(End of this chapter)