Chapter 596 Capsaicin is a smoke bomb
For this rare occurrence, the leaders of the National Defense Work Committee naturally attach great importance to it.
Gao Zhendong even offered to convene people, and said that if it was a good thing, it must be a good thing.
He didn't even ask what Gao Zhendong was. Anyway, it would be good if he knew it was in the radar field. He could ignore everything else. People will know it when they come and know how to drive.
As for Gao Zhendong, is he joking? Haha, are you kidding me?
However, it also takes time to summon people. After Gao Zhendong made this call, he put the matter aside.
He has to do two things now.
The first is to modify this circuit and directly connect the hardware multiplier to the internal data bus of the DJS-60D. In this way, although the hardware multiplier is not directly built into the CPU, it is at least within the existing technical conditions. It connects the multiplier and the computer core together to the greatest extent, and can make full use of the high speed of the internal data bus. Otherwise, all the time is spent on communication. The DJS-59 itself is still slow.
This operation is like Intel being beaten by AMD and launching the earliest dual-core - glue dual-core. Don't worry about whether it is glued or not, just look at whether it is dual-core.
The second thing is to start the ICization of the hardware multiplier. Once completed, it can be combined with the CPU and DRAM to form an original DSP device. Although this operation is more like Intel's 80386 CPU plug-in 80387 math coprocessor, Regardless of the method, just ask if it can process digital signals.
Moreover, Gao Zhendong’s starting point is DSP, which is definitely different from 386+387.
Not to mention this long-term goal, just this tattered circuit board in Gao Zhendong's hand, which looks full of flying wires, can make the old man cry.
In fact, if they got Citi now, they would be greedy.
Thinking of this, Gao Zhendong first asked someone to bring a file. Then, let me polish the chip first. Before this thing was turned into an IC, everyone could only use it without knowing what it was made of.
It’s not that we don’t trust our comrades, it’s that we don’t trust our enemies.
Han Xin: I’m familiar with this job.
Gao Zhendong: Get out! Shame on you!
——
It will take some time to push out the multiplier circuit board, but the work of other comrades does not wait for anyone.
On Tuesday, Gao Zhendong rushed to Beijing University of Technology as usual. His courses were still "Automatic Control Principles", "Data Structure" and "Integrated Circuit Design". Among them, the automatic control principles were not finished yet. The content of this thing is incredible.
As for data structure, a new batch of students is changed. One batch is taught in one semester, and this is another batch.
As for integrated circuit design, go to Classroom 61. Professor Gao will sit in the SZ61 supporting plan design work site for a class. If you have any questions, just ask and he will answer questions on the spot. You can ask the remaining questions in his office in the afternoon.
As for Gao Zhendong sitting in classroom 61 all afternoon? Why are you so shameless? Professor Gao doesn't work anymore, right?
Want him to work in the classroom? If Professor Gao takes out his work and puts it in the classroom, then everyone in the classroom will stop working and have to make room.
While Gao Zhendong was answering questions from comrades and happily feeling the lively atmosphere in Classroom 61, Lecturer Zhang arrived.
The timing of her arrival was very good, just when get out of class was about to end.
Seeing her, Gao Zhendong knew that she was here because of the tear gas incident. He waved his finger and pointed to an empty seat to signal Lecturer Zhang to wait a moment. He was solving problems for his classmates.
Professor Zhang looked at the large-scale and lively design scene and couldn't help but feel envious. Professor Gao was calling this a big event.
In the field of scientific research, images like this of more than a hundred people working hard together are still very impactful, especially for comrades who are also engaged in scientific research.
After finishing the guidance work, Gao Zhendong greeted Lecturer Zhang: "Teacher Zhang, let's go, I'll treat you to dinner, haha, let's talk while eating."
Even decades later, under normal circumstances in the workplace, high-ranking people would always treat low-ranking people to dinner, otherwise they would not be able to lose face.
After eating, the two of them found a deserted corner of the cafeteria to sit down and chatted while eating. Professor Zhang didn't take it seriously. Professor Gao looked like he was a busy person, so it would be great if he could squeeze in time to eat.
In fact, it's not that bad. The main reason is that with the change of his position, Gao Zhendong is becoming less and less accustomed to being alone in the office with women who are about the same age as him or not much older than him. It's not a special situation. He tries to resolve things in public. .
Tear gas is not something that needs to be kept secret, and it is okay to talk about it in public.
Seeing that the dishes Gao Zhendong ordered were all heavy on chili, Lecturer Zhang joked: "Professor Gao likes spicy food. No wonder he came up with the idea of tear gas, and he also used capsaicin as a tear gas."
Gao Zhendong laughed and said: "There may be some reason. I choked when I poured pepper with oil, so I naturally came up with this idea."
In fact, for smoke-generating tear gas, capsaicin is not the best tear gas. Capsaicin can be used to spray, but it is almost useless when used to produce smoke. This thing is not a gas or smoke by nature, but a solid with a boiling point It's quite high, almost 470 degrees. Anyway, if you want to smoke, it's not a good choice.
Especially under the current technical conditions, according to what Gao Zhendong knew in his previous life, CN (benzochloroacetone) is called the first generation of tear gas, and CS (o-chlorobenzylidene malononitrile) is called the second generation. In the second generation, it was not until the third generation that OC (capsaicin) was used. There is a reason. But we can't talk about this now.
Lecturer Zhang continued: "Professor Gao, how can we obtain this capsaicin? Which kind of pepper is more suitable?"
Gao Zhendong pretended to think about it and said with a smile: "It's probably Chaotian pepper. I haven't researched the types of peppers. The hottest thing I've ever eaten is Chaotian pepper. If you decide to use capsaicin as a tear gas, You can go to the Academy of Agricultural Sciences and ask.”
However, Lecturer Zhang heard the meaning of Gao Zhendong's words very keenly: "Professor Gao, do you have any other recommendations?"
Gao Zhendong shook his head: "We'll talk about that later, let's talk about capsaicin first. To extract capsaicin, the easiest way is to ask comrades who are engaged in chemistry, such as extraction and other methods. It should be possible. In fact, artificial intelligence can also be used Synthesis, but it’s more troublesome.”
In fact, there is another method, biological production, but it is a bit abstract in this era.
"Are there so many methods? Can you give some examples?" Lecturer Zhang still knows about extraction, but artificial synthesis is a bit beyond the scope.
Gao Zhendong recalled it, but he couldn't remember the specific method clearly. Like eating peppers does not mean that you have to get out the capsaicin, but he still remembered the abstracts of some papers.
Besides, capsaicin was originally a smoke bomb he put in to facilitate the implementation of the project.
"For extraction, you can consider using ethanol leaching, alumina column chromatography, and diethyl ether crystallization to obtain a mixture of capsaicin."
This is one of the simplest ways to extract capsaicin, and the materials are also the easiest to obtain. Natural capsaicin is a mixture, which contains capsaicin, dihydrocapsaicin and a bunch of other things.
At this point, Lecturer Zhang was already a little dizzy. She could still understand a little bit about ethanol leaching and ether crystallization, but alumina column chromatography was slightly beyond her knowledge structure.
But it doesn't matter, Professor Gao is here. At this time, she admires Gao Zhendong even more. This comrade really seems to know everything.
"What about artificial synthesis?" First, inquire about various methods and learn.
Then she could understand every word of what Gao Zhendong said, but when put together it was like a heavenly book.
"There are many artificial synthesis methods, I don't know much, but you can use 3-methoxy-4-hydroxybenzylamine hydrochloride as the raw material..."
Up to this point, Lecturer Zhang was completely confused. Who am I, where am I, and what am I listening to?
She was eating and talking, and taking the time to record Gao Zhendong's words in her notebook, she couldn't help but stop writing.
The main reason is that I don’t know what to write in the notebook, and the artificial synthesis results are really beyond the scope.
"Haha, Director Gao, this artificial synthesis seems a bit complicated."
Seeing her stop writing, Gao Zhendong probably guessed what trouble she was in. To be honest, he was shocked that he still remembered this string of birds.
"It is indeed a bit complicated, so let's not get into the specifics first. Let me tell you the disadvantages of using capsaicin here." Gao Zhendong said with a smile.
"Ah, okay, thank you." Lecturer Zhang thinks Gao Zhendong's suggestion is right. Know the shortcomings first, then analyze how to use it, whether to use it or not, and finally how to use it.
"There are many disadvantages. The first one is that natural ones are very expensive and synthetic ones are troublesome."
Even in a few decades, the price of natural high-purity capsaicin will be tens of thousands per kilogram. However, it is okay to use it in weapons. The weapons themselves are not cheap, and each smoke bomb does not use much. Synthetic The price of capsaicin is relatively low.
After carefully asking about the details of this problem, Professor Zhang felt that this was not a big problem and that it was a big deal. Although it sounded troublesome, Professor Gao should understand it.
"What about other shortcomings?" If there is first, there may be second or third.
"Secondly, this thing can be used as a spray, but it's not very useful for making smoke."
Gao Zhendong first explained the morphology and physical and chemical properties of synthetic capsaicin to Lecturer Zhang, and then specifically warned: "As for natural capsaicin, since it is a mixture of multiple substances, these properties are not fixed, but change. . The peppers you use to extract are from different places, so even if they are the same variety of peppers, these data will change.”
It seemed that the natural ones could no longer be used. Lecturer Zhang thought to himself that what he was most afraid of was something that had no fixed value and could change, not to mention that it was expensive.
But the most troublesome thing is not this problem. The most troublesome thing is that whether it is natural or synthetic, it seems that its distribution is a bit troublesome.
(End of chapter)