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Chapter 344 Phase Change Materials(1/2)

What does gan mean?

Many people look up the dictionary and get the following knowledge:

Gan is a Chinese character, pronounced as gan, with a total number of strokes of 11. The basic meaning is that water seeps into the boat. From Duan Yucai's note in "Shuowen": "When water enters the boat, it must enter through me (the crack in the boat), which is extended to catch

Fish or fishing.

Okay, I figured out the meaning of the word "gan".

When Chen Lidong used the word "gan", he probably meant that the environment of Long Island was harsh, the wind and waves were bumpy, and seawater poured into the boat.

However, looking at the video sent by Chen Lidong's bib, the boats were stable and there was no danger of rough seas or capsizing.

The workers wore water pants and pushed the boat through the water, a little slowly, but they didn't look dangerous or nervous.

The hull of the ship is indeed deep into the water, indicating that the load is sufficient, and the seawater has reached the waist of the workers. They must be careful when walking, otherwise the seawater will stir up and flow into the water vents, making their bodies wet.

It was just after June 9, and the sea water was freezing cold. Normally, even if you were soaking in the sea water, you would be shaking all over and turning blue even if you were wearing rubber pants, but the expressions of the employees in the video were all normal.

A thoughtful person stares at Chen Lidong in the camera, and there are two gentlemen with glasses next to him.

The chairman is putting on a show and dragging other senior executives into trouble. Is this just playing with the prince?

...

In fact, this is an offshore survey construction, and the workers are not ordinary migrant workers, but technicians with offshore survey experience.

They used GPS to locate the float every time they walked a certain distance, and then dropped the float at the exact point to provide guidance for the upcoming construction of the road to the island.

It is true that Chen Lidong was not the only one who went into the water. The other "Mr. Glasses" were actually teachers and students from the phase change materials project team of Yanjing University of Chemical Technology.

Teachers engaged in scientific research in this era are still very hardworking, pursuing the peak of science and realizing the four modernizations of China. The feelings that are imprinted in their bones have not been eroded away, such as the person next to Chen Lidong.

The researcher named Wang Xiaochuan took the students into the water to experience the temperature-regulating and warming effects of phase-change materials.

The so-called phase change materials refer to substances that change the state of matter and provide latent heat when the temperature remains unchanged.

The process of changing physical properties is called a phase change process. At this time, the phase change material will absorb or release a large amount of latent heat.

Once this material is widely used in human life, it will become the best green and environmentally friendly carrier for energy conservation and environmental protection. It has been listed as a national-level R&D and utilization sequence in China.

The earliest application of phase change materials was in the aerospace field. Scientists Sam and Su Xiong were the first to develop phase change materials. These technologies have always been in a monopoly and kept secret. China only began to accelerate scientific research projects after entering the 21st century.

At present, the School of Chemical Engineering of Shuimu University has made rapid progress in this field. However, the Donghua Department seems to have little contact with Shuimu University. There has been a debate about CNKI before. Some people from Shuimu University have criticized Donghua’s idea of ​​setting up CNKI.

sarcasm.

Later, someone also asked Chen Lidong why there were no Shuimu University students in the Donghua system.

Chen Lidong said mockingly: "We in Donghua are wild boys from the countryside, and Shuimu University is a beautiful lady. We cannot reach that high."

Speaking of which, being able to "invite" teachers and students from Yanhua to conduct experiments on phase change materials in the Bohai Bay, where the "spring tide" surges, originated from an accidental encounter by Chen Lidong.

South of Zizhu Apartment is the West Campus of Yanjing University of Chemical Technology.

Follow the small road east of Zizhu Apartment to the south, and there are many shops and vendors selling breakfast. On the east side of the road is the canteen of Yanhua West Campus.

This morning Chen Lidong got up for a walk and planned to buy some breakfast to take back. He walked over after smelling the smell and walked into the campus of his university.

Yes, the West Campus of Yanjing University of Chemical Technology is an open campus, and some buildings are mixed with surrounding residential buildings.

The buildings on the west campus are relatively old and lack a modern atmosphere. There don't seem to be many students here. Maybe they don't have the habit of getting up early or most of them are night owls. The campus seems relatively deserted, with only some movement on the basketball court.

When Chen Lidong was looking around, there was a crashing sound behind him. When he turned around, he saw a man riding a tricycle coming from behind. There were many bottles and cans in the carriage behind the tricycle. The road was somewhat bumpy.

The cans collided with each other and made a loud noise.

Not long after the car passed Chen Lidong, there was a bump. Several bottles fell out of the car and rolled onto the road. One of the bottles containing white powder actually broke.

The cyclist stopped the car and turned around to pick up the fallen bottle. When he went to pick up the broken bottle, he was accidentally scratched by the glass and blood oozed from his hand.

"Are you okay?" Chen Lidong walked over and asked the other party.

"It's okay, these are phase change materials, non-toxic and harmless, it doesn't matter." The other party was a middle-aged man, wearing ordinary or even shabby clothes. He lowered his head to check the wounds on his hands while answering Chen Lidong's questions.

Chen Lidong took out a tissue and handed it over. The other party took it and said thank you.

The person in front of me has an ordinary appearance, but his expression is a little gloomy.

Chen Lidong asked: "What are phase change materials used for?"

The other party wiped the wound with a paper towel, then picked up the broken glass on the paper towel and prepared to wrap it with the paper towel, but the paper towel could not wrap it up.

Listening to Chen Lidong's question, the man straightened up and said with a slight Qin accent: "These materials have temperature control and energy storage functions. The spacesuit knows about it, so it adds phase change materials."

Chen Lidong looked at the things in the bottles in the carriage, white, yellow, blue, and black. Those who didn't know must have thought that these were from paint shops. He didn't expect that there was also a term for "phase change materials" and that they were from aerospace companies.

Served.

Those bottles and jars immediately became taller.

But the scene in front of me has nothing to do with tallness. The dilapidated three-wheeler, the depressed middle-aged man, the broken bottle, the white powder on the ground...

At this time Edmund came over and handed over a mineral water bottle.

The middle-aged man took it, pinched the spilled powder with his hands, and put it into a mineral water bottle. The broken glass was picked up under a tree by the roadside, and sanitation workers should have cleaned it up.

The middle-aged man put the mineral water bottle back into the tricycle, and Chen Lidong said: "You ride on, walk slowly, I will support you from behind."

The middle-aged man said thank you, then got on the car and drove forward slowly.

"Are you moving?" Chen Lidong asked inappropriately.

The middle-aged man seemed to be laughing at himself and said: "Haha, my project has been taken down and the laboratory has to be given to others. I have to move these things to the dormitory to avoid being thrown away as garbage."

Chen Lidong joked: "How did you win such a good project?"

The middle-aged man said: "What's so good? There may not be anyone who can make good things. It will probably take a long time for our astronauts to walk in outer space. By then, they will definitely have nothing to do with me."

Chen Lidong didn't know when Yang Wei went into space, nor did he remember the year when Zhai Gang made his spacewalk.

However, judging from the tone of the other party, it was obvious that he was frustrated with scientific research. So he took a few steps closer and said, "Even if you don't need it now, you still need to reserve technology."

The middle-aged man asked: "How older are you?"

Chen Lidong quickly explained: "I'm not a student here. I live nearby and came here for a walk."

"You look familiar."

"Well, I look pretty good. Well... what's your name, teacher?"

"My surname is Wang, Wang Xiaochuan. Are you from Yanjing?"

"I'm from Lanshi. There's also a house here... right here in Zizhu Apartment."

"Zizhu Apartment, it's a rich area."

"Rich area? You praise me. My name is Chen Lidong and I work for Donghua Group."

"Chen Lidong? It is indeed you. In 1998, you often appeared on TV. Our school has held meetings to call on you to learn from you. I heard that you have been traveling abroad in the past two years, buying luxury cars, houses, and airplanes for everyone."

"Teacher, please don't listen to some people's nonsense. I was wrongly accused."

"It's always true that you make a lot of money, right?"

"It's okay...maybe."

"You rich people, if you have money, you should spend it in decent places."

"I spent all my time on serious things."

"I heard that you have recently invested a lot of money to buy scarves. I would like to advise you not to buy those messy things. Things that are not wanted abroad should not be brought into China. If you really have nowhere to spend it, invest some money for those of us who are engaged in scientific research.

, maybe I can find more ways for you to make money."

"Then can you make money with these materials?"

"Of course you can."

"Really? How can I make money?"

"For example, in extremely cold conditions, wearing clothing made of phase change materials can continuously release heat, which is much better than ordinary down jackets with thermal insulation functions."

"Then I'll vote."

"What did you say?"

"I'll invest, how much does your project cost?"

"Really? One hundred... five million... okay?"

"Is it enough?"

"Flower first."

An investment in a scientific research project was settled within ten minutes.

This Wang Xiaochuan is an associate researcher at the Yanhua School of Materials and Engineering. He focuses on scientific research and generally does not attend classes, but he also teaches students. His phase change materials project has been banned because other universities have conquered the problem of phase change materials.

applications in space suits, but those space suits are worn inside the cabin

Yes, Wang Xiaochuan was planning to develop one for extravehicular use, but he did not compete with others and could no longer get the support of the school and the aerospace department. He personally could not find funds and equipment for experiments, and he could no longer go to the aerospace department to conduct experiments in a simulated environment.

To conduct experimental testing, I almost gave up on myself.
To be continued...
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