Chapter 168 The Future of Lithium-Ion Batteries
At 5:30 in the evening, Xu Qingzhou walked out of the library and went straight to the laboratory.
Just as he expected, everything was normal. After debugging the parameters, control the variables.
After Ren Xiaoling waved her hand and said "Goodbye, junior fellow student", Xu Qingzhou was the only one left in the huge laboratory.
Letting the machine continue to run, he took out the manuscript paper from this period and began to calculate.
The advancement of the twin prime conjecture is still difficult.
To study prime numbers, we first need to deeply understand the inherent laws and properties of natural numbers. However, the distribution of prime numbers among natural numbers is extremely complex and irregular, which makes it extremely difficult to predict and prove the existence of pairs of prime numbers.
During this period, he tested several methods to prove the twin prime conjecture, but finally found that only Zhang Yitang's method was effective, and with the efforts of mathematicians, it has been fixed at 246.
This means that as long as we continue to use this method and change the constant from 246 to 2, we will completely prove the twin prime conjecture.
From 246 to 2, it seems that there is only one step away, but things are not that simple.
This may be the case when doing research. After 99 steps, you will find that the remaining step is more difficult than all the previous steps combined.
Xu Qingzhou tapped his fingers lightly on the paper on the table, looking at the various complex formulas on the paper.
"Is it possible to break out of Zhang Yitang's GPY screening method framework?"
Zhang Yitang's method is still a kind of sieve method. He first proved the Bombieri-Vinogradov theorem and obtained an improved GPY sieve method.
This method has the essential obstacle of "screening parity problem".
As to whether the conjecture can be completely proven by continuously optimizing existing methods, the mathematical community generally believes that the possibility is slim, and Zhang Yitang himself holds the same view.
Xu Qingzhou let out a breath. In fact, he already had a clear idea of how to solve the twin prime conjecture.
Using various sieve methods, Siegel zero-point estimation, and L functions, automorphic forms. Combined with the existing results, we stand on the shoulders of our predecessors and pick the fruits of truth.
However, it is still very difficult.
After 10 minutes passed, Xu Qingzhou rubbed his temples and planned to go through all the manuscripts again to see if he could find any new ideas from the details.
Although the screening method proposed by Gelstone et al. is relatively sophisticated, it is not flexible enough and has no room for maneuver to adjust for errors.
The improved GPY screening method has reached a dead end again.
What if the Selberg parameters were changed to a more flexible polynomial function
Thinking about it, Xu Qingzhou picked up the pen and started writing on the manuscript paper.
The choice of λ is still the Selberg parameter corresponding to the κ+ζ dimension.
S=∑\frac{\sigma_{ext{before}}
11pm.
Xu Qingzhou stood up and stretched, put away the manuscript, and turned off the instrument. Today, he has completed the data collection of laser pulse width and space travel as planned.
I took a quick glance at the data and found nothing unusual.
He didn't stay any longer, closed the door and returned to the dormitory.
Dormitory 101.
Xu Qingzhou was still the first to return to the dormitory. Kong Xianbo and Zhai Ziqiang were mostly in the library, while Xu Zhengyang disliked playing games in the dormitory and went to the Internet cafe to chat with others.
After he finished taking a shower and lying on the bed, the two people who went to the library came back.
"Lao Xu, you rested so early?" Kong Xianbo was surprised.
Xu Qingzhou was looking at rental information on the Internet. He put down his mobile phone and said, "I'm a little tired. Go to bed early." Kong Xianbo nodded, spread out the book and took out his notes. Seeing Lao Xu resting, he inexplicably wanted to read for another half hour. .
This feeling of constantly absorbing knowledge, making progress all the time, and narrowing the awareness between me and Lao Xu is fascinating.
Seeing that Kong Xianbo started to write again, Zhai Ziqiang originally planned to sing a song with the fire stick that had been eating dust for most of the semester, but gave up and sat down silently to take out the textbook.
Soon, Xu Zhengyang came back humming a song.
Zhai Ziqiang raised his head and asked: "Brother Yang, didn't you say you were going to be serious this semester?"
"That's right." Xu Zhengyang nodded and said with emotion: "That's why I plan to play games as soon as possible during this period and finish all the games this semester."
Xu Qingzhou felt that this guy would definitely fail this semester.
Zhai Ziqiang sighed secretly. He had studied hard for a semester, but in the end he was evenly matched with his lousy roommate, just a few points higher.
Kong Xianbo suddenly felt a sense of crisis. Although Lao Xu was careless, his strength was there. Once he was rolled up, everyone would be killed.
3 days flew by.
These days, Xu Qingzhou and his wife chose a house and discussed with the landlady to go see the house on the weekend.
Aunt Song Yao came again and didn't want to move. Xu Qingzhou originally wanted to go and have a look by himself, but Song Yao pulled her back and asked her to come together.
At 2:30 in the afternoon, Ren Xiaoling was asked to guard the experiment.
Xu Qingzhou plans to attend a lecture at the activity center. This is a lecture on new energy - the future development direction of lithium-ion batteries.
The keynote speaker is Academician Dong Shengyang of the institute.
When Xu Qingzhou arrived, the lecture hall was almost half full. On the podium, an old man with gray temples and a washed white shirt was looking down at documents.
This old man should be Academician Dong Shengyang.
Xu Qingzhou also saw that his old acquaintances Gong Yunfei and Professor Zhao Shengwen were working on lithium-ion batteries recently. They were probably quite familiar with Academician Dong Shengyang. It was normal to send someone over to do odd jobs.
Gong Yunfei also saw Xu Qingzhou and enthusiastically invited Xu Qingzhou to come next to him, "Junior Brother Xu."
Next to Gong Yunfei, a young man wearing glasses asked: "Who is this?"
"My junior brother, Xu Qingzhou." Gong Yunfei introduced with a smile.
A flash of surprise flashed in the young man's eyes. This was the mathematical genius who solved Kramer's conjecture. He stretched out his hand and said, "I have long admired your name. I am Professor Dong's student, Ge Zixin."
"Hello, senior brother Ge." Xu Qingzhou smiled and shook hands with the other party.
The lecture was about to start, and Xu Qingzhou and the others sat down in the first row instead of standing.
Academician Dong Shengyang did not have too many fake procedures. He greeted his classmates with a smile, and then started to enter the main text.
From the current development situation of Xiaguo lithium-ion batteries, to the current difficulties encountered, and to the future development direction, it is predicted that the world of lithium iron phosphate batteries and ternary batteries will be dominated by lithium iron phosphate batteries and ternary batteries in the future, which are basically expected to replace the traditional lead Acid batteries.
The old academician's lectures were very interesting, explaining the profound things in simple and easy-to-understand terms, and there was not a single problem in more than two hours.
This kind of lecture is different from academic exchanges. It does not involve too many technical details. It only describes the development trend of lithium-ion batteries from a macro perspective.
Of course, this is enough for Xu Qingzhou. In the past, he had a general understanding of the development of lithium-ion batteries in the future, but now he has an overall framework.
(End of chapter)