I really just want to be a scholar

Chapter 503 The pursuit of truth leads to the same goal

The night outside the window gradually darkened, the high-rise buildings in the distance were brightly lit, and the night view of the bustling metropolis was dazzlingly beautiful.

Qin Ke didn't have much interest in admiring it, he was still sitting in front of the desk, spinning the pen rapidly on his fingers.

The body of the pen rotated back and forth at a dizzying speed, but Qin Ke's eyes were fixed on a dozen pieces of draft paper placed in front of him, on which were drawn a crooked network of heterogeneous structures.

These are the structural shapes that Qin Ke drew based on his professional-level physical theory and all the experimental data at hand. He has also deduced them one by one through mathematical models, and the correct answer should be here.

But no matter which one it is, it always gives him an awkward feeling. There should be a small problem somewhere, but he is a fan of the authorities, and he couldn't find out where the problem was for a while.

At this time, Ning Qingyun went to take a shower, and only Qin Ke and his younger sister Qin Xiaoke were in the study.

The little girl now basically leaves for the city at around nine o'clock in the morning every day, learns painting from Professor Mai of the Beijing Academy of Fine Arts, and comes back around four o'clock in the afternoon. She is picked up by her work assistant Fang Yongtang for the round trip. It takes about an hour one way, which is very hard, but Qin Xiaoke showed unexpected hard work, never complained about hardship or tiredness, and would tell interesting stories about studying with Professor Mai every day when they had dinner together.

I have to admit that even though it was just an extra little girl, it did make the family a little more lively.

"Brother, haven't you figured out what's wrong?" The little girl put down a book of Appreciation of Sketch Masterpieces and came over to beat Qin Ke's shoulder.

"Yes, just a little bit, I need inspiration." Qin Ke put down the spinning pen a little tiredly, closed his eyes, and enjoyed his sister's rare cuteness.

It is now mid-July, and it has been almost three days since the end of the final exam. Qin Ke even put down the mathematics subject "Hail Conjecture" for the time being. Except for spending two or three hours a day on the EDA subject, the rest of the time is devoted to "Relax Ferroelectric In the subject of "improvement of thin film materials", but there is still a little bit of inspiration.

It's a pity that the system's "Inspiration Amplification" function has not been activated for a long time. It should be that there is not enough time to study it, and the conditions for activation cannot be met. Qin Ke feels that it is useless to go for a long-distance run until he vomits.

"Brother, your drawings are so ugly."

"Yes, I have no artistic talent since I was a child. I sing out of tune, and my painting level is similar to that of kindergarten children. My artistic cells must have been stolen by you." Qin Ke lazily closed his eyes and replied .

"Hey, it's okay, as long as I can draw, I'll help you draw whatever shape you want to draw."

"I don't know what the exact shape is, anyway, it's a network structure, and it should be similar to one of the dozen or so paintings I drew."

Qin Xiaoke put away his little fist that was beating his shoulders, went to pick up the dozen or so network structure diagrams and looked at them for a while, then jumped back on the lunch break bed and picked up the paintbrush: "Brother, let me try, You have a problem with these shapes, that is, they are not aesthetically pleasing.”

Qin Ke laughed: "It's still aesthetics, this is drawn according to physical theory, not art theory..."

In the middle of speaking, he suddenly stopped.

Because he remembered the elective course "Art Appreciation" he took in the first semester of his freshman year. The teacher who taught the class at that time once said:
"Everything in the world, if it is correct, will give people a beautiful visual effect. The composition of art also follows specific rules, such as using triangles to give the audience a stable impression, and using oblique composition to express positive and upward tension. ... Let me explain with the composition of these famous paintings, if you measure them carefully, you will find that their composition conforms to the concept of the golden section line, so they look particularly comfortable..."

Chewing this passage repeatedly, a thought flashed in Qin Ke's mind: "Is it good-looking because it conforms to mathematics? No...it is beautiful because it conforms to the truths and laws existing in nature. No matter mathematics or Physics abstracts the truth from the laws of nature..."

The rustling sound coming from his ear woke Qin Ke up from his thoughts. He saw Qin Xiaoke holding a paintbrush and sketching out beautiful lines. He quickly recreated Qin Ke's dozens of network structure diagrams. Draw it again.

Unlike Qin Ke's ugly paintings, Qin Xiaoke optimized the lines and structure according to the theory of art, which looks particularly pleasing to the eye.

Qin Ke vaguely felt that he had grasped something, and hurriedly said: "Little sister, show me all the pictures you have drawn."

"Hey, isn't the painting much prettier than yours?" Qin Xiaoke proudly handed over the portfolio.

"It's beautiful...it's really beautiful." Qin Ke flipped through the sketches one by one, but when he saw a certain one, his mind suddenly flashed, and he pulled Qin Xiaoke: "Little sister, this one, Can you help me draw it again, can the spacing here be changed repeatedly, but still be able to draw in an aesthetically pleasing manner?"

"One big and one small?" Qin Xiaoke thought for a while with a brush, and quickly drew a new one.

Qin Ke looked at this highly aesthetic graphic, and his eyes became brighter the more he looked at it: "By the way, repeated changes in such spacing can make the formation of quantum wells regular, thereby reducing the number of carriers captured by dangling bonds." The possibility of increasing the hydrogenation rate of subsequent dangling bonds...wouldn't this reduce the voltage loss? I actually ignored this possibility, it's really dark under the lights!"

He rubbed Qin Xiaoke's long hair excitedly: "Thank you, little sister, you've been of great help this time!"

Qin Xiaoke blinked her eyes in bewilderment, not knowing how she was able to help, but seeing her brother finally showing his usual confident smile, her mood became brighter: "Hey, you're welcome, in the future You can come to me for anything you want to draw.”

"I will definitely find you!"

Qin Ke secretly sighed in his heart, as expected, all disciplines in the world have the same goal in the pursuit of truth!This is the main reason why Teacher Jiang asked him and Ning Qingyun to take more elective courses to expand their thinking horizons, right?

Qin Ke sat back at the desk again, and it only took about 10 minutes to perfect his mathematical model, compiled it into a program through Shimmer, and quickly completed the deduction.The results of the deduction made Qin Ke very excited. His new mesh structure shape, combined with the thickness value of 0.611μm-0.613μm derived from Ning Qingyun's mathematical model, can reduce the loss by 19%!

There is only 1% left to pass the line!
This should be the optimization limit of the current preparation process of relaxor ferroelectric thin film materials. Even if such a perfect state is not achieved in real experiments, it is estimated that the loss can be reduced by about 18%.

For the rest, as long as you gain something from the second direction, that is, "improvement with special elements", you can easily meet the requirements of the conclusion!

Qin Xiaoke sat cross-legged on the lunch break bed, propped up his chin and watched as his elder brother was standing by the window and was calling the research team to inform him about re-doing the experiment.

The little girl raised her eyebrows happily, it was such a good feeling to be able to help.

If you stay with brother and sister Ning in the future, you won't be their drag, right?

……

The next day, good news came from Professor He's laboratory. Under the preparation process of 0.611μm and a new network structure shape, the final result was very good, and the loss was reduced by 18.8%, which was only slightly inferior to that of Qin Ke. Mathematical model deduction results.

The team leader Huo Xinguang who called was so excited that his voice trembled: "Thank you, Qin Ke, Ning Qingyun, everyone in the research team is almost crying with joy, and it's a little bit close. Our research can be seen The dawn of success is here! Whoever says computational materials science is useless in the future, we are the first to be impatient with them!"

This engineering man who is usually not very good at talking actually said so much in one breath, which shows how restless his mood is. Qin Ke also heard the warm applause and cheers from the other end of the phone, and felt a sense of accomplishment in his heart:

"Group leader Huo, if you hadn't conducted experiments and theoretical derivations based on our mathematical model time and time again, we would not have been able to complete the optimization of the mathematical model in such a short period of time. We are still close, let's work together!"

"Okay! Let's work hard in the second direction! By the way, I will send you the latest topic discussion materials later!"

A few minutes later, Qin Ke and Ning Qingyun received dozens of discussion papers, all of which were the theoretical derivation and discussion papers of Professor He and the research group in the direction of "improvement of doping with special elements" in the past half month. One hundred thousand words.

From these documents, it is not difficult to see that the entire research group is working hard day and night to study, and the spirit of scientific research that will never give up until the last moment.

Qin Ke and Ning Qingyun looked at each other, and they both had a spontaneous sympathy, which is the sympathy of scientific researchers.

Seeing Ning Qingyun smiling happily, Qin Ke thought of something that would make her happier, so he smiled and said, "By the way, Yun'er, I'll show you some news."

Qin Ke controlled the laptop with his voice and opened a webpage.

Ning Qingyun looked over curiously, and saw that it was a news item on a large domestic news website. The title of the news read "Flood disaster encounters obstacles, "J-92 breakwater" plan makes great achievements."

Looking at the content of the text again, it reads: "The latest domestically developed and launched 'J-92 Breakwater' scheme that can cope with harsh geological environments has been tested in several provinces and promoted on a small scale. In the 'J-92 Breakwater' Under protection, more than 92 counties and districts that were prone to floods as soon as summer entered the past have passed the flood season in June this year without causing food production reduction, casualties, or economic losses. It is reported that this set of 'J-[-] breakwater 'The scheme was developed by the Experimental Institute of Fluid-Solid Interaction Mechanics under the name of Xia Ke Academy, which took more than two years to develop. It has the advantages of rapid construction, good stability, and adaptability to harsh geological environments..."

Ning Qingjun was both surprised and delighted: "Isn't this the 'J-92 Breakwater' project that we participated in Professor Duan's research institute last time? It has been piloted and applied so soon?"

Qin Ke was also very excited. The satisfaction he felt when he saw that his scientific research achievements played an important role were applied to the national economy and the people's livelihood and successfully protected the people and property could not be described in words.

"Yeah, I've been preparing for two years, and the last super-large-scale test is about to be tested and promoted. It is estimated that more counties and districts will use this scheme next year, and even many sections of coastal protection dikes will adopt this scheme. package."

Ning Qingyun's beautiful eyes were full of pride: "I'm so happy, Qin Xiaoke, I feel that we are getting closer to the goal we set at the beginning."

"Well, it's a pity that this is not a large-scale project led by us. Now that we have accumulated more experience, a few years later, there will always be a time when we personally host such a major project!" Qin Ke squeezed the girl's pure and lovely face with a blush:
"Okay, let's put our minds back on the subject at hand. I won't mention EDA. Its significance is no worse than Professor Duan Yonggong's breakwater plan. And if Professor He Liangfu's project can be successful, it will It will have a great impact on the energy storage industry, we have to work harder and strive to do our best!"

Ning Qingyun clenched her fists: "Okay, try to be the best!"

The two clapped each other tacitly, and once again devoted themselves to the subject research.

In the past ten days, Qin Ke has completed the absorption of the "Computational Materials Science" and "Chemical Materials Science" part of professional-level chemistry knowledge twice, and has a new direction for this "improvement of doping with special elements" Especially after carefully reading the latest information about this direction of the research group, Qin Ke has a preliminary direction that he believes has the highest success rate.

He wrote the chemical formulas of the six elements "phosphorus, boron, iron, bismuth, platinum, titanium" and their oxides and hydrides on the paper.

Among them, "bismuth, platinum, and titanium" are the research results of the research group during this period of time, but because they are all rare metals, the cost of doing an experiment is too high. At present, only one experiment has been done, and Qin Ke needs to use experimental data and mathematical construction. Model to deduce which metal is the most suitable.

The first three are deduced by Qin Ke based on theory.

With a clear subdivision direction and certain experimental data, the next work will be much easier.

After imparting the relevant knowledge to Ning Qingyun through "thinking resonance", Qin Ke arranged: "Jun'er, I am in charge of modeling oxides, and you are responsible for modeling hydrides, how about it?"

"Okay." Ning Qingyun had originally studied chemistry as a freshman with Qin Ke, and his foundation was very good. Moreover, Professor He's team had been doing experiments on hydrides before, and the pile of materials in his hand contained detailed theories. And records, the girl quickly got started, and carried out mathematical modeling based on experimental data and theory.

Hydrides are divided into ionic hydrides, metal hydrides, transitional hydrides, and covalent hydrides, all of which have different characteristics. She needs to establish four small mathematical models respectively.

Qin Ke's workload is a bit bigger, because oxides are divided into basic oxides, acidic oxides, peroxides, superoxides, and amphoteric oxides, and he needs to build five small mathematical models.

The mathematical modeling of both of them has to simulate the results of doping with relaxor ferroelectric thin film materials, including local chemical changes, changes in structure and electrical heterogeneity, changes in phase transition temperature, and so on.

The phase transition temperature is very important, it is the critical temperature when a substance changes between different phases, such as the temperature at which a solid melts into a liquid, and the temperature at which water freezes into ice.This is directly related to the temperature range in which the relaxor ferroelectric thin film material maintains stable performance after doping with different elements.

The workload is a bit heavy, but in the face of the mathematical modeling skills that both of them are proficient in, the progress is constantly accelerating.

……

Three days later, in Professor He Liangfu's laboratory, Professor He was still answering the questions of the graduate students. Huo Xinguang said excitedly: "Qin Ke sent an email again, and the second direction has achieved results!"

(End of this chapter)