Chapter 162 (1/2)

Ulrika looked at the figure in the laboratory again, but now the people inside were doing experiments in dust-proof clothes. When she couldn't find out which one was Zheng Jianguo for a while, she heard the man say with surprise: ”the recommendation letters of the three professors? And Professor Philip? ”

As the world's top engineering college, MIT recruits a lot of graduate students every year, but compared with that huge base, the admission rate is only about 2%. If you want to enter this school for graduate students, super-high academic performance is only the basic condition. In addition, you are also required to have certain academic achievements, Then the most important thing is to get a letter of recommendation from the three professors.

It's funny that Professor Thomas wrote a letter of recommendation to himself, but Philip is a Nobel Prize winner. In the eyes of the school board, his letter of recommendation is enough to open the door to any student, not to mention that Zheng has become a ”special assistant” of Harvard Medical School by relying on the discovery of Helicobacter pylori - this product is still holding the title of a possible Nobel Prize candidate!

No school would dislike the large number of such Nobel Prize candidates, especially when he was still a ”learning bully” under the age of 18. Therefore, after a simple discussion, the school board of directors of MIT opened the door for Zheng Jianguo to graduate students.

Of course, Zheng Jianguo also knows that the reason why the famous MIT is so generous is the purple area surrounded by bright colors on the substrate under the optical microscope in his pupil: ”this substrate should show two to three layers of graphite - layers.”

”OK, let me observe?”

Thomas, who was wrapped tightly with a mask and Headcover, said that when he saw Zheng Jianguo get out of the way, he came to the microscope, stared at the bright color inside and said, ”the bright color is the organic matter on the tape?”

”Yes, the higher the color, the more organic matter.”

Zheng Jianguo opened his mouth and saw that other people in the laboratory were looking at them. The masks and headgear made people unable to see their expressions, but the eyes with different colors but the same light emerged with incomparable eagerness, Of course, whether these people can go under the microscope is not his decision: ”then, based on the analysis of the significant characteristics of graphite materials, rahan spectrometer is used to detect the subject matter on the substrate.

It can be confirmed that there is a low defect D peak at about 1300cm-1, while the G peak at 1600cm-1 is generated by the in-plane vibration of carbon atom SP2 network, and the 2D peak at 2700cm-1 comes from the resonance scattering process of two phonons.

I think the greater the ratio of the height of 2D peak to the height of G peak, the thinner the number of layers of graphite, and the thinner the number of layers of graphite, the sharper the shape of 2D peak, and the height of 2D peak of single layer is about 1-2 times that of G peak, and the 2D peak is sharper. ”

”Well, IKA, you guys go and have a look. After that, repeat the rahan spectrum test.”

Thomas turned his head and said to several people who tore the tape. He turned his head and looked at Ulrika outside the laboratory, and then said to Zheng Jianguo, ”Zheng, you guide them to repeat the test.”

”All right, Professor Thomas.”

Zheng Jianguo glanced at Ulrika at the door of the laboratory, turned to the ”strong men” who silently looked at the microscope, and heard someone say, ”Zheng, how did you find this way to find the graphite layer?”

”There was a place in my term work that needed to be modified. There was no correction liquid. I picked up the tape and pasted the handwriting on it. When I wanted to throw it away after I pasted it, well, I thought of the last experiment. When I saw someone throw the tape with graphite powder into the trash can, I asked myself what I was doing in that experiment, Is what you're looking for only in the graphite in your hand? ”

Zheng Jianguo is talking about what most students in this family have done. If you want to modify it, you can't paint it or cross it out. So what you can do now is to find a way to remove the wrong part, which immediately aroused the resonance of others: ”your idea is really, great -”

”We have more or less ground graphite flakes, but the adhesive tape is thrown away -”

”Zheng, your focus is really different. Well, that's how you found Helicobacter -”

”Zheng, let's have a lunch together at noon to celebrate your today - no, celebrate your amazing discovery!”

”Zheng, I think you'd better write your paper now. This is what you should do at present. We can help you.”

”Yes, you completed the experiment yourself. Although you were instructed by others before, you completed the experiment the day before yesterday -”

”After you do experiments with the professor, you won't have the chance to write -”

”Zheng, after writing, you can ask Professor Thomas to help revise it before you vote -”

After repeated reminders, Zheng Jianguo didn't expect these ”strong men” to be so enthusiastic. Shen Yunhui and Tao Ye's cheeks flashed in his mind and immediately said with a smile: ”OK, keep busy. I'll start writing now. After writing, I'll invite you to dinner -”

”Ah, this, how nice --”

”Zheng, I'm so sorry --”

”Zheng, you'd better write it first -”

”Yes, you can eat at any time -”

After repeated exhortations, Zheng Jianguo found his notebook and opened it on the small table next to him. He took out his pen and began to write a draft on it. Several people in front of the microscope behind him looked at it and measured it. With the help of the experience of writing many papers, he quickly closed the end, and the remaining data needed to be filled in after repeated experiments, Turning to Thomas who came in, he said, ”Professor Thomas, I'm going to publish today's repeated experiment, but I need to take some photos -”

”Wait a minute. I'll call the photographer.”

Thomas, who had just entered the laboratory, immediately picked up the pen and paper next to him and wrote it. He went to the glass next to the door, pressed the paper on it, knocked on the glass, attracted the attention of outsiders and pointed at the words on the note.

Seeing that the people outside nodded and left, Thomas turned back to Zheng Jianguo, looked at the paper he transcribed again, and said with a smile: ”yes, yes, it's a standard way of writing the paper, but some words in it can be replaced by simplified spelling, such as this -”