Chapter 318 (1/2)
In the morning, at nine thirty.
Looking at Li Zhengtao's office, he found a guy drinking coffee with Du cuntao on his desk.
Stay up late and work overtime?!
How can you do such a thing?
Du Songtao walked to Lin Yujing station for the first time.
Found that Lin qiojing is also sleeping!
No, no, she's working overtime, too?
It shouldn't be. It's just a routine sleep.
”Cough...” Du Songtao coughed not lightly or heavily.
No one paid attention to him.
Du Songtao had no choice but to walk to his desk. Just as he was about to wake up Li Zheng, he saw a printed report on the desk.
He put down his coffee cup and opened the report.
Then there was a stare.
And then it went faster and faster, straight to the last page.
Then there was a long stagnation.
If so
So now it should be
He subconsciously turned back and wanted to rush into Zhu Mingyue's office.
But the pace soon slowed down again.
He still can't do such a thing as stealing merit.
He quickly returns to the table and wakes Li Zheng and Liu Rui with his report.
Without waiting for the two to speak, Zhu Mingyue pointed to the report.
”I don't understand the algorithm. Just tell me how sure you are.”
After a short stay in bed, Li Zheng shook his head and trimmed his hair.
”More than 95% and can be verified immediately.”
”We don't have the ability to verify. We have to let the team of the sixth hospital come, which will cost a lot of energy.” Du Songtao waved a report and said, ”I'm going to ask Zhu Mingyue to hold a plenary meeting right now. If it's denied, we will become a big joke.”
”No, chief engineer Du.” At this time, Liu Rui also put on his eyes and stood up and said, ”even if our conclusion is wrong, this matter is not ridiculous at all.”
”I see.” Du Songtao respectively patted two people and said, ”wait for my news.”
Then he left the office in a hurry.
Five minutes later, yf-87 team members received the emergency meeting notice.
When Du Songtao comes back, Li Zheng and Liu Rui are finishing the report on PPT, and Lin yuejing is still sleeping.
”How about it?” Du Songtao hurried to his desk. ”Do you have any problems in your report?”
”Li Zheng's report is good. My mind is empty.” Liu Rui said blankly, ”I'm full of curves now. I can't even understand what Li Zheng is saying.”
”You do the main work. You do it.” Li Zhengcun turned to PPT and said, ”and this is the field of 17 institutes. I don't want to be too bold. A group of teachers will have a bad feeling when they listen to me...”
”But I really Now it's hard to say a whole sentence... ” Liu Rui squeezed his eyes and rubbed his forehead. ”For the first time in my life, my brain has been overloaded like this...”
”Well, I'll decide.” Du Songtao lights up the computer and says, ”Li Zheng is responsible for reporting, and Liu Rui's name is written in front of the PPT, OK?”
They looked at each other for a while and then nodded reluctantly.
”Good.” Du Songtao clapped his hands and pulled them up. ”Now, both of you go to wash your faces, take a few mouths and wake up. I'll pour you coffee. If it can be verified as your conclusion says, then I believe --”
”at the beginning of today, Huang Er will fight back.”
……
At 9:39, the last member of the team rushed to the meeting room.
The notice only mentioned the emergency meeting without too many details and no news in advance, which filled most people with a sense of mystery.
In front of the long table, Zhu Mingyue and Du Songtao are discussing nervously, while Li Zheng and Liu Rui are leaning on the side of the projection screen, dully adjusting the projection.
At 40 minutes, Zhu Mingyue and Du Songtao nodded to each other and temporarily shelved the discussion.
Zhu Mingyue omitted those opening remarks, and after putting down Du Songtao, he spoke directly.
”Chief engineer Du digs out breakthrough results in internal data analysis.”
”There are so many things involved that I didn't have time to look at them carefully.”
”Let's listen to Li Zheng's report directly, discuss its accuracy on the spot, and arrange the follow-up work.”
People in the meeting room could hardly conceal their disappointment.
During this period of time, Du Songtao has indeed put forward some ideas at the regular meeting, but either they have been proved as no or they have no conditions at all.
Although he is an expert in satellite, he is still too inexperienced in the engine line, and he seems to be on paper.
To put it bluntly, it's like two people shooting lol with their mouths. How can I get out of position? I use Q you and so on. According to his self logic, it is barely tenable, but in practice, it's not like that.From Zhu Mingyue's words, it's not hard to tell that he has clearly set aside his responsibility, and is simply dragged to the meeting by Du Songtao.
That's what happens to laymen. It's a waste of everyone's time.
After seeing that Li Zheng was the reporter, most people were more disappointed.
Although in the end, can you really do such a funny thing? Listen to a high school student plan here?
Li Zheng, on the other hand, didn't notice this at all. He simply cut his hair and stood up.
In order to cheer up, he even wet his hair, now belongs to a kind of greasy handsome, some overtime old programmers look like.
”First of all, let me make it clear that this work is not entirely done in our group.”
”It was Liu Rui and the members of each group who completed 99%, and I only finished the last 1%.”
”Let me briefly describe the process and conclusion.”
Li Zheng said, press the controller, the screen immediately showed a graph.
”This is a suspicious frequency curve.”
”There are thousands of sections of this type of suspicious curve in each test run.”
”I've been working on finding its eigenvalues, using some kind of algorithm to eliminate the interference term, finding the most suspicious part, in-depth research.”
”But when it comes to engineering calculation, my personal ability is limited and I have never found a reliable method.”
”At this time, Liu Rui sent these These, and these... ”
Li Zheng said a few consecutive points on the controller, a suspicious curve tiled on the screen.
”We have analyzed and studied these curves.” A group leader raised his hand and said, ”Liu Rui's work is very hard, but we haven't found any reliable conclusions according to these clues. They are probably the normal vibration noise of the engine during operation.”
Li Zheng nodded.
”Yes, just take out one of the analysis will be like this, just periodic, not light or heavy, not deep or shallow.”
”If we analyze in isolation, it is like solving an equation of 12 variables according to one line of formula, there will be no result.”
”So we need to make at least 12 formulas and combine them.”
Li Zheng clicks remote again.
The tiles are stacked together.
The audience then looked sideways, many disappointed people followed the spirit.
All of us here are experts in this field. Although they are just a pile of curves, they have already felt the periodicity and correlation contained in them.
Li Zheng then hit again, along the overlapping shadow of 12 curves, a clearly marked red curve appeared, and the relevant matrix and its dense mathematical expression appeared at the bottom.
”That's the solution.” Li Zheng circled more than half a page of mathematical symbols on the screen, ”teachers can have a simple look, we have no clear query to turn the page again.”
At this point, there are not many people who can understand.
One of them, a young engineer, raised his hand.
”We have tried similar work, but you have to know that from those suspicious data that Liu Rui finds out, if you randomly extract any 12 of them for correlation analysis, there will be some conclusions. Such an analysis method does not necessarily prove anything. Considering that he has summed up nearly 200 curves, it is not even possible to prove anything.”
”These 12 items are not randomly picked up by me, but refined by the algorithm of optimized fault model.” Li Zheng explained carefully.
”According to the parameters I input in the system, it can extract 1, 2, or even 100. 12 is just a number that I can easily express here.”
”In the actual analysis, the final parameter I choose is 67, which is roughly equivalent to solving the 67 element equation.”
”Of course, my current expression is still very shallow, which involves the professional content of machine learning and data analysis. If the teacher is interested, he can read three papers published by the 11 institutes before.”
The engineer shook his head and said, ”I know you can't make a detailed statement here, but the problem is that this step of argument is very important. If we don't convince everyone here, it will be very difficult for us to accept your later conclusion.”
Li Zheng confidently nodded: ”it doesn't matter, my conclusion can be verified by actual measurement.”
The engineer said, ”do you mean, let's build another engine based on your conclusion and go for a test run? I don't want to offend you, but we really don't have the time and resources to do this... ”
”We don't need to rebuild or test drive. We can verify it today. At most, half a day is enough.” Li Zheng was helpless and said, ”in fact, I didn't expect to let you accept my conclusion with such a simple report. This report only gives you a reason to examine my conclusion. ”
“……” The engineer shook his head, raised his hand and said, ”you go ahead. Let's assume that your fault curve holds.”
”Thank you for your tolerance.” Li Zheng said, ”to be exact, this conclusion is not a fault curve, but a curve describing the fault curve and an equation describing the equation, which is equivalent to reducing the fault analysis by one dimension and resolving it into a pure mathematical problem. Based on this, we further calculate and dig out this -”As the screen turned, a more terrifying matrix map was presented that no one could understand.
”This is the mathematical description of the final failure.” Li Zheng pointed out, ”I am not showing off the mathematics level to confuse you, but I just want to show more reliable arguments and deepen the reasons for everyone to prove my conclusion.”
”Then, let's just give this description a little bit...”
”It's like this...” he said
”Although it is difficult to understand, it is actually one of the mathematical expressions of two-dimensional projection of the fault point of the shaft system...”
”Now We should restore this projection to the shafting according to the structural parameters of the shafting... ”
”In short, it is to increase the dimension again...”
”You can understand this process as a computer operation process. First, we can convert the characters we input into binary sequences, and then output them as the characters we can understand...”
”Don't show this expression, I'm not really in the pack...”
”The final mathematical expression is very simple, I believe that you can understand...”