Great Country Academician

After hanging up the call with the Naval Engineering University, Gao Hongming quickly re-encrypted the paper and sent it to Academician Wang Yong through a dedicated network.

Although it may seem unprofessional to send such files using tools such as email, overall, there is no problem with this.

On the one hand, although this paper is important, strictly speaking, the paper itself is purely mathematical research, and it does not involve national security as a whole.

On the other hand, they have established a dedicated confidential communication system over the years, which has stable security and can completely ensure that files are not stolen or tampered with during transmission.

Of course, the latter is the most important. They are now confident enough to protect their own things.

Including Xu Chuan, the team responsible for security has also established relevant confidential communication systems long ago.

After quickly handling these matters, the assistant walked in quickly holding a thick stack of papers that had just been printed out and brought Yu Wen and Mo Xiang.

"Director, the paper you requested has been sorted out."

"Give me."

Gao Hongming responded, quickly took the paper, flipped through it and said, "Arrange a vehicle, I want to go to the Academy of Sciences."

"OK."

The assistant nodded and walked out quickly.

The black car quietly drove out of the science and technology building and rushed towards the headquarters of the Chinese Academy of Sciences on the other side of Chang'an Avenue.

At the same time, inside the National Key Laboratory of Magnetism, Institute of Physics, Academy of Sciences.

Academician Wang Enge, who was wearing a white coat and a pair of glasses on his nose, was staring at the experimental equipment in front of him meticulously, frowning and thinking about something.

The State Key Laboratory of Magnetism was established very early. In the 1930s, before the motherland was officially established, its predecessor, the Modern Magnetism Research Laboratory, had already been established.

As for the research direction, you can tell from the name that it is guided by the basic research of magnetic physics, focusing on magnetic materials with important application background, and studying related theories, technologies, materials, devices, etc.

Before Xu Chuan returned to China to take charge of the Qixia controllable nuclear fusion project, among the major controllable nuclear fusion projects in China, establishing a control system for the ultra-high temperature plasma in the reactor was what the State Key Laboratory of Magnetism of the Institute of Physics of the Chinese Academy of Sciences was doing. .

As for establishing a complete mathematical model for the orbital magnetic field in the electromagnetic railgun, although everyone on the project believed that this task was extremely difficult, he still resolutely took the lead in shouldering this arduous task.

There is no other reason.

If even the academicians who stand at the top of domestic academic circles have shrunk, then the word responsibility will be out of the question.

Just as Academician Wang Enge was thinking about where to break through this problem, the door of the laboratory was suddenly pushed open.

"Academician Wang."

In the laboratory, a hearty voice with a hint of excitement sounded. Academician Wang Enge, who was thinking, was suddenly interrupted and couldn't help but frowned his thick eyebrows.

Who? Barging into his laboratory without even saying hello? And disturbed his thinking.

Just as he was thinking about it, a middle-aged man with a Chinese character face came into his eyes with a smile on his face.

After being stunned for a moment, Academician Wang Enge's frown softened a lot and he said hello: "How come Gao Ting is free to come to my side?"

Gao Hongming laughed and asked, "Academician Wang, has your research on the electromagnetic railgun project made any progress?"

Academician Wang Enge shook his head directly and sighed: "There is no progress yet, has something happened?"

Gao Hongming chuckled and said, "Something happened? Something big happened!"

"Um?"

Academician Wang Enge cast a doubtful look, but he didn't have any worrying thoughts.

After all, although Gao Hongming said that something big had happened, he could still feel the expression on his face and the emotions in his words.

Quickly taking out a paper from his bag, Gao Hongming smiled mysteriously: "Academician Wang, take a look at this first."

Looking at Gao Hongming with some surprise, Wang Enge took the paper he handed over and his eyes fell on the title of the paper.

"Research and Analysis of Three-Dimensional Elliptical Electromagnetic Fields and High-Dimensional Large-Scale Backscattering Problems"

When the title of the paper came into view, the pupils of the half-white-haired old academician tightened and he stared at this line of title.

The problem of electromagnetic railgun, whether it is precision guidance or orbit ablation problem, in the final analysis, is actually the problem of magnetic field.

Because an excessively strong magnetic field will not only destroy the electronic equipment and guidance chips in the missile. It will also cause track ablation problems and greatly reduce the service life of the track.

The title came into view, and before he could read the content of the paper, Academician Wang Enge quickly raised his head, his slightly cloudy eyes were shining brightly, and he looked at Gao Hongming and asked:

"Where did this paper come from?!"

The problem of three-dimensional elliptical electromagnetic fields and high-dimensional large-scale backscattering is one of the core mathematical problems in the field of magnetic fields.

Whether it is the determination of PDE coefficients, initial value reconstruction, estimation of field source functions, or testing of interfaces or boundary conditions, etc., all require the solution of ill-posed nonlinear operator equations.

Among the large-scale forward and backscattering problems, a particularly important type of problem is the propagation of electromagnetism in complex media.

However, current mathematics does not support the solution of large wave number electromagnetic field problems.

This is also the core problem that they have not made any progress in solving the electromagnetic railgun problem.

However, what Wang Enge did not expect was that the answer to this mathematical conjecture, which is a difficult problem in the world, seemed to appear in his hand.

Although he was not very sure about the correctness of the paper in his hand, since Gao Hongming, an important leader of the Science and Technology Department, brought it personally, its correctness was probably quite high.

As for the source of the paper in his hand, he also had a rough guess in his mind.

If we say that in China, the only person who can solve this problem is probably the person far away in Jinling.

What Wang Enge asked was just to confirm his guess in his heart.

Hearing the question from Academician Wang Enge, Gao Hongming laughed and said, "Mr. Wang, please take a look at the paper first."

After taking a deep breath, Academician Wang Enge nodded and said forcefully, "Okay."

His eyes immediately fell on the paper in his hand, and he read it carefully word by word.

".Starting from the spectral theory of the Laplace operator, solve the lowest-order edge unit approximation problem of the three-dimensional electromagnetic field calculation problem with singularity."

".Use the singular source field method to solve the far-field problem generated by plane waves."

"Use the adaptive finite element method to complete the discrete accuracy best approximation of the optimal computational complexity and exponential convergence"

The paper in his hand flows through his eyes page by page, and when each mathematical formula is reflected in his pupils, his slightly turbid eyes will brighten a bit.

When the paper turned to the last page, Gao Hongming smiled and asked, "Mr. Wang, what do you think?"

Academician Wang Enge closed the paper, took a long breath, and said with a gleam in his eyes, "This paper was written by Academician Xu Chuan, right?"

Without waiting for Gao Hongming to answer, he quickly added, "It must be him! Apart from him, no one in the country has such a strong mathematical foundation!"

Gao Hongming smiled and nodded, saying, "Yes, the paper was indeed researched by Academician Xu. I want to ask, can we use this paper to solve the problems we encountered in the electromagnetic railgun?"

Hearing this question, Academician Wang Enge thought seriously for a while, shook his head, and said, "I don't know."

Hearing this, Gao Hongming was stunned.

Don't know again?

Last time Xu Chuan also replied to him in this way, this time Wang Enge is the same?

Looking at the paper in his hand, Academician Wang Enge continued: "On the one hand, I am not sure whether this paper really solves the problem of three-dimensional elliptical electromagnetic field and high-dimensional large-scale backscattering."

"The paper is too complicated. I am not a mathematics major. I can't fully understand it in a short time."

"On the other hand, even if it really solves the mathematical problem theoretically, it is still a very difficult task to establish a corresponding mathematical model based on it to solve the magnetic field control problem of the electromagnetic railgun."

After a slight pause and a deep breath, he continued: "I want to go to Jinling!"

Having the same idea as Academician Wang Enge, there is also Academician Wang Yong of Chubei Naval Engineering University.

After receiving the paper, the two of them booked air tickets and high-speed rail tickets and rushed to Jinling from Beijing and Seoul.

Even though the journey was long, the two old academicians still brought their teams to Xinghai Research Institute at noon the next day.

Of course, in addition to the two academicians and the relevant research team, there is also Gao Hongming who acts as an intermediary.

Xu Chuan, who had received the news in advance, met the three in his office.

After greeting Xu Chuan with a smile, Gao Hongming slightly turned sideways and said with a smile: "Academician Xu, allow me to introduce you."

"This is Academician Wang Enge from the Institute of Physics of the Chinese Academy of Sciences, and this is Academician Wang Yong from the School of Engineering of the Naval University of Engineering. Both Academicians Wang are the main R\u0026D personnel of electromagnetic railgun technology."

"Hello, Academician Wang."

Xu Chuan smiled and stretched out his hand to shake hands with the two Academicians Wang, and greeted each of them.

Academician Wang Enge from the Institute of Physics of the Chinese Academy of Sciences had a smile on his face, and took the lead in stepping forward and greeting Xu Chuan warmly: "Academician Xu, it's been a long time since we last met. I didn't expect that you are still as young as before when we meet again."

Hearing this, Xu Chuan was slightly stunned, and tried to recall in his mind where he had seen Academician Wang Enge.

Fortunately, his memory is quite good. After thinking for a while, he smiled and said, "It has been a few years indeed. I didn't expect Academician Wang to come this time."

Aside, Gao Hongming asked curiously, "Do you two know each other?"

Academician Wang Enge smiled and explained, "I had the honor to meet Academician Xu at the International High Energy Physics Conference held in Beijing a few years ago and said hello."

"But it has been several years. I didn't expect Academician Xu to still remember me."

After the group exchanged a few pleasantries, before Gao Hongming, the middleman, spoke, Academician Wang Yong, who came from the Naval University of Engineering, took a sip of tea and spoke.

"Academician Xu, I am here to bother you this time, mainly because of this paper."

As he said, he took out "Research and Analysis of Three-Dimensional Elliptical Electromagnetic Field and High-Dimensional Large-Scale Antiscattering Problems" from his backpack, put it on the coffee table, and continued.

"Regarding the research and development of electromagnetic railgun technology, I believe Director Gao has already talked to you before, so I won't explain too much. This time I came here mainly for this technology."

After a slight pause, Academician Wang Yong said somewhat embarrassedly: "We have read this paper you wrote several times, but there are still many things in it that we don't understand."

"I hurried over this time mainly to trouble you to explain to us that this paper is the key basic theory of controlling the magnetic field. It is very important to us. It is of great significance for how to establish the magnetic field to control the electromagnetic railgun."

Xu Chuan smiled and nodded, saying: "That's no problem, but it may not be convenient this afternoon. I have something urgent at the institute. How about tomorrow?"

The timing of the two Academicians Wang's rushing over was indeed not very coincidental. The Energy Research Institute has made a new breakthrough in the research on electromagnetic shields and magnetic polariton fields, and he really can't spare much time in the afternoon.

As soon as he finished speaking, Academician Wang Yong smiled and said, "No problem, of course no problem, it's up to you. As long as you don't mind us being troublesome, we can stay here."

Aside, Academician Wang Enge also nodded with a smile and said, "We came suddenly and didn't say hello in advance."

Xu Chuan smiled and said, "Then tomorrow, you two can also prepare first."

Speaking of this, he suddenly remembered something and smiled and said, "By the way."

"Regarding the research on magnetic fields, I just have a project here, which happened to be this afternoon. Maybe it can provide some help for the research on electromagnetic railgun technology. Would you like to go with me to have a look?"

He was not sure whether the research on electromagnetic shield and magnetic polarization field could be applied to electromagnetic rail technology, but this project was also a study on the control of magnetic fields, and it might provide some inspiration for the other party.

Hearing this, Academicians Wang Enge and Wang Yong both looked interested, and they smiled and said.

"If it's convenient, please take us to see it."

Xu Chuan smiled and said, "It's not inconvenient, please follow me."

He put down the teacup in his hand, stood up and walked towards the Energy Research Institute.

Although the research on plasma and electromagnetic deflection shield technology is a highly confidential project, if the two academicians who study military technology are not assured, then there is no one to trust.