Chapter 93

After reading the thesis for a whole day, it wasn't until Liu Rui's kid started snoring that Lu Zhou went to bed with a hutch.

The next day, I woke up early.

On the way, I went to the cafeteria to buy two steamed buns, and Lu Zhou arrived at the laboratory on time.

When he arrived, Senior Brother Liu and Senior Brother Qian were already gathered around the instrument, busy with work.

What we have to do today is to draw the FTIR spectrum of each sample through the Fourier transform infrared spectrometer, and record the absorption peaks of the functional groups and chemical bonds of the early-age hydration reaction of the carbon nanotube modified sample.

"...Our research is mainly aimed at enhancing the solubility of carbon nanotubes in Portland cement, and at the same time improving the bonding force between carbon nanotubes and matrix materials." While conducting experiments, Senior Brother Qian introduced to Lu Zhou, "However, the progress of the research is not optimistic. Professor Li should have told you that we have encountered a bottleneck."

Lu Zhou, who was watching from the side, asked, "Where is the specific problem?"

"The problem lies here. The data we measured through the Fourier transform infrared analyzer, look here," Senior Brother Qian pointed to the FTIR image just printed out, and continued, "What did you see?"

Resisting the urge to waste points, Lu Zhou stared at the warm A4 paper for a long time, and suddenly recalled what he learned yesterday when he read the paper. Something was wrong.

"The characteristic peak of the No. 2 cement sample is abnormal?" Lu Zhou said in an uncertain tone.

"Correct, but not accurate," Senior Brother Qian nodded approvingly, pointed out a few places on the FTIR image, and continued, "Sample No. 2 is a cement sample mixed with CNTs. According to the results, our sample 2 performed quite well in the compressive capacity test, but the performance in the tensile capacity test was not satisfactory. According to the characteristic peak data at the age of 6-10h on the FTIR image, our preliminary judgment is The CNTs material hinders the polymerization process of the silicon-oxygen tetrahedron in the C-S-H gel, resulting in the formation of pores inside the cement material in the later stage of the hydration reaction."

"Where is the problem?" Lu Zhou wondered, "I mean... since we already know the reason for the unsatisfactory tensile performance of sample No. 2, shouldn't it be enough to solve it?"

"It's not as simple as you said," Senior Brother Qian said blankly, "We have tried many methods, including using melamine as a nitrogen precursor regardless of production costs, and ball milling carbon nanotubes under vacuum conditions. The surface of carbon nanotubes is functionally modified...but judging from the tensile test data of samples No. 27 and No. 28, the results are equally bad."

Lu Zhou roughly understood, but he didn't have a better way.

Nodding his head, he then asked, "What do I need to do?"

Brother Qian: "In order to find a solution, we have done many sets of experiments. Although the budget is still sufficient, it is no problem to do a few more sets. But a few days ago, we learned that the materials science laboratory over there A breakthrough may have been made on this project, and time does not allow us to continue to procrastinate."

After a pause, Senior Brother Qian sighed and continued.

"We need an expert who is proficient in mathematics, preferably in functional analysis, to help us analyze these experimental data and see if we can find some valuable clues. It is best to help us find the impact of CNTs on the early development of Portland cement. Where is the influence of age hydration reaction... I have taught myself functional analysis, but I still have no clue about these data. As expected, it involves such difficult calculations, I still have to entrust you experts from the mathematics academy .”

Just as the mathematics department at the undergraduate level does not offer the course of material physics, the applied physics major does not offer the course of functional analysis. After all, there are only a small number of people who have obtained double degrees at the undergraduate level. Most of them selectively self-study those courses that they have not taken according to the needs of their own research direction after being admitted to graduate school.

After thinking for a while, Lu Zhou said seriously, "I can't guarantee success, but I can try... When will you expect the result?"

"The sooner the better, although I can't wait...but it's better within three days." Brother Qian thought for a while and continued, "After three days, no matter whether there is any result or not, I hope you can at least give I'll report back on the progress."

Lu Zhou nodded and said, "I will try my best."

After receiving the mission from Senior Brother Qian, Lu Zhou went to the library.

Although Senior Brother Liu vacated a desk for him, the laboratory was too deserted and the learning atmosphere was not strong enough.

In contrast, Lu Zhou still prefers places like libraries.

Sitting among a group of people who are busy writing, even if you want to distract yourself, you will not be able to hold back the sense of urgency and guilt in your heart, and focus on your studies.

And most importantly...

Here, more or less, he recalled a little bit of the feeling of high concentration.

Passing by the printing room next to the library, Lu Zhou turned and went in, and printed all the papers and experimental data to be read on A4 paper.

It is his habit to delve into complex mathematical problems by spreading out all the things he needs on the table.

Anyway, it can be reimbursed as research expenses, and he doesn't need to spend his own money.

Finding an empty seat in the library and sitting down, Lu Zhou picked up the pen and tapped on the draft paper, ready to start writing.

However……

Ten minutes passed.

He still sat there in that posture, without moving a word.

emmmmm...

Where to start?

Lu Zhou's face was a little ugly, and he felt troubled.

If there is a fixed formula that can be used, or even if there is a clear goal there, he can easily conceive where to start. But the current situation is that those scientific research dogs in the Academy of Sciences couldn't even find the problem, so he asked him, a math guy, to help them find the bug.

Recall what Senior Brother Qian said.

It's really a skill to throw the pot away...

Looking at the pile of data, Lu Zhou only felt his scalp tingle.

At this time, he suddenly realized that this task was not as simple as it seemed on the surface.

...

People are iron rice is steel.

Even a top student has to eat.

Sitting in the library until twelve o'clock, Lu Zhou looked at the untouched draft paper, thought MMP in his heart, threw the pen on the table, got up and walked to the cafeteria.

While eating in the cafeteria, Lu Zhou happened to bump into Old Tang, and walked up to say hello with a plate, and sat opposite him.

Glancing at Lu Zhou, Old Tang asked with a smile, "How do you feel?"

"It's hard! It's much harder than pure math problems." Lu Zhou said with emotion.

"It's okay to find it difficult," Professor Tang said with a smile, "Mathematics is a scientific research tool, and you are studying applied mathematics. There will be more opportunities to encounter similar projects in the future."

"Professor, can you stop hitting me and give me some ideas?" Lu Zhou sighed.

"I can't give you the idea, you can only find it yourself, but I can give you some suggestions," Professor Tang smiled and continued, "Didn't you participate in the mathematical modeling competition? Recall that time a feeling of."

Frowning slightly, Lu Zhou pondered for a while, but quickly shook his head: "It's completely different. The reason why aerospace problems can be transformed into mathematical problems in the final analysis is because it is still a problem of particle motion in the final analysis, and there are formulas that can be relied on." and readily available data..."

"It's actually the same." Old Tang shook his head, "Whether it's the movement of spacecraft, the movement of particles, or the change of functional groups... For mathematics, it is actually the same in essence. Anything that exists, There are data hidden in the depths that can be mined, laws that can be calculated, and mathematical models can be established. If you can’t find it, it’s just because you haven’t worked hard enough. Think more, observe more, I believe you will be able to Find the clues."

After listening to Professor Tang's words, a thoughtful expression appeared on Lu Zhou's face.

Looking at Lu Zhou who was in deep thought with a smile, Old Tang nodded in his heart.

Ruzi can be taught.

Place a bowl and beg for tickets~~~~