"boom!"

"Brother Dongqing, it's time to eat!"

"flap!"

Gu Yun jumped up as if her foot had been stepped on, lowered her head and ran out the door.

"You idiot...that old Gu kid, please think about it and don't leave. You can leave after eating!"

Ji Dongqing was so angry at Batu that he finally got a chance. Ji Dongqing secretly said that he would need to get a door lock for the office in the future, preferably one that can be remotely controlled, like the one-button lock in Hong Kong movies.

Gu Yun avoided Ji Dongqing for the next two days, and did not dare to look at Ji Dongqing even during meetings. Ji Dongqing could never find a chance to be alone with him, so he had no choice but to go to school with peace of mind.

However, as the theoretical classes gradually deepened, Ji Dongqing discovered that it seemed that he had chosen the wrong major.

“In 1926, the Austrians wrote the so-called Schrödinger equation, and then someone solved this second-order partial differential equation for a grid-like potential energy with low symmetry and a certain degree of translation. You can solve the functional relationship between energy and momentum.

It is the so-called dispersion relationship, also called energy band structure. This energy band structure allows us to understand what is called a conductor and what is called an insulator..."

Mr. Zhong pointed at the equations and various crystal phases on the projection screen with a laser pointer. Ji Dongqing was dumbfounded, because even though he was learning the material, the teacher in class always mentioned it.

No teacher has ever really talked about this level of things, or said that he has not studied it deeply.

Looking around, almost none of his senior brothers were surprised.

"Brother, how much do we use this equation?"

"A lot. Look at page 13 of Mr. Zhong's notes. It contains the main deductions about the conductivity and shielding properties of our new materials, as well as the conclusions. The data model is in it! In our materials science, most of them are

Use various mathematical equations to finally establish a data model and finally understand the material properties! Only with the assistance of these equations, many things you make can be solid, including rubber formulas, plastic formulas, metallurgy, mining, and aerospace.

, and our most important basic aspect of nuclear fusion is the application of this equation. You will know it if you use it more. We all have these things in our computers, and Mr. Zhong will give them to you..."

Ji Dongqing's contribution to experiments is obvious to all. Of course, no one would have thought that Ji Dongqing would not understand! Although Ji Dongqing studied materials science.

Seeing his brothers and sisters paying full attention, Ji Dongqing hurriedly opened his head and tried his best to fill it with things, although most of them were difficult to understand.

After class, Ji Dongqing did not dare to neglect at all. He went directly to the library to find books, and then came back to build the model. Even during the holidays, Ji Dongqing did not return to the factory. Even so, it was still very difficult to follow.

"Didn't the teacher talk about it when I was an undergraduate?"

In the cafeteria, Ji Dongqing was still reading while eating, and Mr. Zhong came forward.

"It should have been mentioned before, but we didn't have such detailed explanations at that time. The undergraduate exam was very simple and did not focus on these contents. Although some of the content seemed to have been covered when I was taking the graduate exam, I avoided the important things for the sake of the exam. Only now do I realize that it is more important.

important!"

Ji Dongqing put away his tableware and realized that no one was around.

"Alas, our undergraduate education teachers are so good at fooling things now. If students like you don't notice, it proves that 80% of students don't notice! The remaining 20% ​​are just trying to avoid the important points for the postgraduate entrance examination.

How can we have enough materials talents? After so many years of industrial development, there are still too few people who really understand materials. Many people have not paid attention to the relationship between mathematics and materials. Most of them are still in the make-do stage. This matter is

It’s the greatest sadness!”

Mr. Zhong patted Ji Dongqing's shoulder not blaming him, but feeling very sad.

Ji Dongqing actually felt uncomfortable. In his memory, apart from himself, there were only a few people in the class who studied hard, actively learning computer languages ​​and memorizing exam questions.

Then pay attention to each subject. Although it is not the kind of research, at least you can keep in mind the key points taught by the teacher in class.

But even if I am like this, I don’t really understand a subject. This is not a case, but a failure of the entire undergraduate or applied undergraduate education.

There are many enlightened masters and few people studying, and ultimately a bunch of trash with advanced degrees are educated.

Ji Dongqing also paid attention to Liang Farong's material formula. It seemed that there was no ratio or strict ratio calculation at all, it was just random!

Or strictly speaking, it is the accumulation of years of experience and the accumulation of failures.

In a modern industrial society, these can be precisely controlled through precise calculation and data accumulation of industrial software, especially in foundries.

Even Master Wang, who has been working for a lifetime, is still based on his accumulated experience at this time. If he really asks them to say a Ziwu Maoyo, no one can say it right, or they can't understand it.

Even many undergraduate graduates study under experienced masters when they enter the factory. Who has no trouble figuring out the data model?

This thing is not only tiring, but also won’t show results in a short period of time. Private bosses can’t wait to let workers come up with the money without investing a dime. How can they be willing to invest money in researching materials?

Short and easy, plagiarism is the most direct business model. As long as you get the money, who cares about your messy data?

The direct consequence of this is that no one does research and just plagiarizes. This is the most common "overtaking on a bend" in society!

On the road to industrialization, this kind of plagiarism is very scary. The source company of the product directly registers the patent for the original formula. A lawsuit can make you spit out all the dividends over the years.

Of course, more importantly, this will lead to a material science fault in a country.

When the source company's research and development reaches a critical point, it directly sets a high threshold, and plagiarists will be at a loss in an instant.

During Ji Dongqing's inspection, he once met a bachelor's degree graduate from a company who had been 'researching' formulas ten years after graduation!

In fact, we are using the results to infer the rationality of the formula. There are no initial calculations. As for the basic data construction model such as material properties, potential, and Schrödinger equation?

This man was the same as Ji Dongqing at the beginning. He had flour in his left brain and water in his right brain! This is a kind of pure sadness, the smug sadness or nastiness deposited under the vanity and prosperity.

Strictly speaking, Ji Dongqing is now a real introduction to materials science, because he understands the use of data models and data construction!

In order to catch up with the progress, Ji Dongqing just made a phone call to the factory during the holidays. When he had nothing to do, he concentrated on doing experiments in the laboratory and building data models. Although some things were ready-made, Ji Dongqing still did the calculations. When the semester was about to end,
Chapter completed!