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In the evening, I wrote for nearly ten hours, please support me.
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"There's no need to be in such a hurry."
Xu Chuan said, turned on the computer, and opened the mathematical model to check.
The model page is not very beautiful and quite satisfactory, but all the functions he requested before have been implemented.
After preliminarily checking the model and confirming that the basic functions were complete, Xu Chuan extracted a set of pre-calculated data from the experimental data, entered the model and clicked the output button.
As the mathematical model is calculated, the notebook's cooling fan automatically speeds up its rotation, and the originally quiet notebook starts to buzz.
For a laptop, even if its price is as high as 10,000 yuan, and even if it uses the latest Core i5 CPU core, it is not that easy to carry a somewhat complex mathematical model.
However, Xu Chuan didn't pay attention to the fact that the notebook was being loaded at high load, and just stared at the display, waiting for the data to complete calculations.
Time passed little by little, and more than five minutes later, just when Xu Chuan thought that the notebook could not run the model or that there was something wrong with the mathematical model, the screen on the display jumped and the calculation results came out.
Holding his breath and concentrating, Xu Chuan looked at the calculated numbers on the screen, and then at the previously calculated data on the tablet.
correct!
The first set of experimental data is completely correct!
The initial judgment of the model is that there is no problem, it can operate normally, and it can correctly calculate numerical answers.
After confirming that there was no problem with the first calculation, Xu Chuan then entered the second set of different data with different experimental methods and clicked the output button again.
As long as the calculation of the second set of data can be successfully completed, the mathematical model can be taken to the materials laboratory and handed over to Chen Zhengping.
Although the two sets of experimental data cannot guarantee that all functions and calculations are normal, it is worth applying for a small supercomputer or server to conduct comprehensive verification.
As long as the verification can be passed, the data model can be used to comprehensively optimize the manufacturing process of tungsten diselenide nanosheets.
Although it does not necessarily solve the collapse and curling effects caused by van der Waals forces in the final tiling process, it can help Chen Zhengping optimize a large number of experimental processes, thereby saving a lot of time.
As long as there are no problems, it can be said that this mathematical model alone, judging from Xu Chuan's experience, can help his mentor Chen Zhengping's team save at least nearly half a year.
Material experiments have always been like this. The research and development of a material usually involves continuous trial and error, recording experimental data, and then conducting new experimental optimizations.
And then continue to accumulate data and experience.
Most laboratories want to build a mathematical model to assist optimization, but many are unable to do so.
Even though he and his senior sister worked together for four days to complete the modeling work, this foundation was based on his huge mathematical ability.
Without him organizing the data, simplifying the core mathematical formulas and processing the mathematical symbolic relationships corresponding to the experimental data, modeling would not be so easy.
If he were an ordinary mathematics professor at Nanjing University, he probably wouldn't be able to sort out the data in ten days and a half, let alone simplify the most important core mathematical formulas.
...
On the desktop, the time in the lower right corner of the computer display was beating little by little. After waiting for about five minutes, the screen jumped.
Xu Chuan looked at the calculated data, then looked at the answers on the tablet, and gave the senior sister a "well done" look.
The senior sister looked at Xu Chuan and understood the meaning in his eyes. She raised the corners of her mouth happily and smiled for the first time.
After two verifications were completed and there were no problems with the data, Xu Chuan found his mentor Chen Zhengping with the mathematical model.
"Is it ready so quickly?"
After taking the USB flash drive, Chen Zhengping asked in surprise.
He had given Xu Chuan ten days before, but he had already planned that if there was progress and he was sure that the mathematical model could be produced and completed, he could wait half a month to a month.
Because mathematical modeling for large-scale experiments and the modeling problems above in college student modeling competitions are completely different concepts.
The latter problems are generally relatively simple, requiring at most a dynamic model and considering two to three factors.
In the former, the data of each experimental change is extremely extensive and complex, and there are many factors and influencing conditions that need to be considered.
Just like his current research and development of tungsten diselenide nanosheets, temperature, humidity, air pressure, current intensity, raw material concentration, time, reducing agent concentration, etc. are all variables.
To integrate these into a model, the complexity and difficulty are so much higher than in a college student modeling competition that I don’t know where to go.
In five days, Xu Chuan was able to create a mathematical model, which had to make him doubtful.
"Well, for fear of delaying your progress, my senior sister spent several nights rushing to make it. We have preliminarily verified the model twice, and the results calculated using different experimental data are all correct."
"However, the performance of my laptop is limited, and it will take a long time to verify the functions of all modules, so I brought the model over to see if, tutor, you have a more powerful server or small supercomputer.
, this way the verification speed will be much faster.”
Xu Chuan explained, and Chen Zhengping suddenly nodded and said: "So that's it. Thank you for your hard work. I'll go to the application server to verify it."
"Well, thank you for that, teacher. If you have any questions, you can always come to me."
Xu Chuan nodded, turned and left the materials research and development building.
The mathematical modeling matter has come to an end, and the remaining work has nothing to do with him.
Calculating mathematical models and using mathematical models to find data and optimize the experimental process are the tasks of his mentor.
Unless there is something wrong with the mathematical model, it needs to be returned to the factory for repair.
However, this probability is not high in his opinion. It can be verified by two different experimental data, indicating that there is no problem with the core formula and code of this model. It should only be a matter of time to pass the remaining verification work.
If the performance of the server you apply for is sufficient, you can roughly verify it in one day.
Sure enough, the result was just as he expected. It didn't take long. Just one day later, the phone call came to him.
"Hello, senior brother."
Xu Chuan answered the phone, and the excited voice of his senior brother Fan Pengyue came over the other end.
"Junior brother, do you have time now? Come to the materials experiment building."
"Well, okay, I'll go over now." Xu Chuan responded, guessing that the verification work should be completed, and perhaps some new discoveries have been made.