The previous projects "Research on Coating of Carbon Nanotube Fibers" and "Improvement of Relaxor Ferroelectric Thin Film Materials" have completed the completion process, and due to their outstanding results, they were included in the "Key Scientific Research Results of the Year" and won the

A multi-million research award.

Professor He Liangfu's arrival this time was to distribute the scientific research to Qin Ke and Ning Qingyun in proportion according to the original income division agreement, and even the check was ready.

Qin Ke and Ning Qingyun couldn't resist, so they had to accept it. At the same time, they had to sigh that Professor He was really a kind person.

Professor He's spirit is completely different from three months ago. He is full of energy and his eyes are bright. The feeling of being almost overwhelmed has disappeared. Presumably, the family's debt problem has also been caused by the completion of the two subjects and the rewards.

, has been properly resolved.

He smiled and said: "Are you interested in participating in new projects recently? Lao Hu and I are collaborating on a new project, using the Karman vortex effect to prepare ultrafine fibers and developing high-throughput production methods. This

This is a topic that takes into account physics and materials science, and it also requires technical support from experts who are good at computational fluid dynamics."

Ning Qingyun was not very familiar with this somewhat unfamiliar concept, so she looked at Qin Ke.

Qin Ke explained with a smile: "The phenomenon of Karman vortex street was discovered by aerodynamicist Theodore von Karman. It is a fluid mechanics phenomenon. Simply put, it means that when a fluid flows through certain objects, it will

The phenomenon of periodically shedding the direction of rotation and arranging into regular double rows of alternating vortices is very common in nature. For example, when the wind blows through cylinders such as high towers and telephone poles, the Karman vortex street phenomenon will easily occur. 8.

The famous wind-damaged Tacoma Canyon Bridge accident ten years ago was also caused by the Karman vortex phenomenon."

He picked up paper and pen again, tv/d, and explained briefly.

He Liangfu couldn't help but sigh: "You know such partial knowledge very well. No wonder Lao Hu said that your attainments in fluid mechanics have surpassed most of the physics professors in the country. It is indeed no exaggeration. Academician Lao Jiang has such a master as you

, I’m afraid I’ll wake up laughing in my dream.” At this point, he asked hopefully: “How about it, are you interested in joining me and Lao Hu on this project?”

Qin Ke is also thinking about participating in a few more topics in fluid mechanics and materials science, which can not only increase his experimental experience and verification knowledge, but also prepare for the gradual release of the "Nonlinear Partial Differential Equations" Navier-Stokes Equation in the future.

"Exploration and Detailed Explanation" laid the foundation for the knowledge, and he happily said: "Okay, it just so happens that we are very interested in these two aspects."

He Liangfu said happily: "Okay, Lao Hu and I have just started this joint project not long ago. If you are interested, you can participate from the beginning and serve as Lao Hu and I's deputy, so that you can complete a complete project."

Experimental projects will be very beneficial for you to independently undertake projects in physics or materials science in the future."

Qin Ke and Ning Qingyun also have independent projects now, but almost all of them are related to mathematics. There are only two of them as members. The daily proposal reports, mid-term reports, and final reports are all written by Ning Qingyun. The submission process and reception

Feedback, etc. will be handled by administrative teachers arranged by the Department of Mathematics.

In addition, there are plant breeding and EDA topics, and these two major topics have actual team leaders. For example, Wei Xueming is in charge of plant breeding, Xu Qingyan is in charge of EDA, and Qin Ke and Ning Qingyun are more on the higher ground.

Provide guidance and technical research at various levels.

When it comes to team leadership in physics or chemistry, the two of them really don’t have much experience.

Now Professor He's intention is very clear, which is to let the two of them follow him and Professor Hu Qingfeng as deputy teachers from the beginning. Under the guidance of two experienced subject experts, Lao He and Lao Hu, Qin Ke and

Ning Qingyun was able to get started quickly and could independently undertake related experimental projects.

Feeling the kindness and care of Professor He Liangfu, Qin Ke and Ning Qingyun exchanged glances and readily agreed.

…

Just when Qin Ke and Ning Qingjun joined the research group "Using the Karman Vortex Effect to Study High-Throughput Preparation of Ultrafine Fibers", in a mountainous village in the southwest, Chai Dajin was carrying a hoe, planning to weed the fields.

.

Snowflakes have begun to fall in many areas in the north at this time, and even if it doesn't snow, the temperature has mostly dropped to single digits.

But in the southwest, it is like spring all year round. At this time, the temperature is still close to 20 degrees, and normal crops and thinning crops can continue to be planted.

The village where Chai Dajin is located is a relatively poor and backward mountainous village. Firstly, the transportation is not convenient and walking on the mountain road is very troublesome. He can only sell crops through a small dock two kilometers away and take the waterway to the nearby county town. Secondly, because of the lack of land,

Most of them are barren and have a certain degree of saline-alkalinity, and the yields of most crops are very low. People in the entire village work hard all year round and can barely guarantee food and clothing.

Chai Dajin's family is no exception. He has been facing the earth all his life and has no education. It is estimated that his life will be like this in the future. The only thing he is proud of is that he has a son who is quite ambitious. He was successfully admitted to college last year, although he was only an ordinary student.

He had only two books, but he was also the first serious college student in the small village, making Chai Dajin able to hold his head high when walking in the village.

But when Chai Dajin thought about his son's future, his heart became heavy again.

My son is a college student. He will have to stay in the city to work in the future. He cannot be allowed to come back to farm. But now the family can barely make ends meet. The money for his son’s college education is all borrowed from various families in the village, plus student loans.

Yes, if my son wants to stay in the city in the future, his family may not be able to provide him with any support.

I heard that girls in the city now hate the poor and prefer the rich. If you don’t have a house or a car, you can’t marry a girl in the city. How can your son have the money to buy a house? If you don’t have a house, how will you find a wife in the future?

Thinking of the heavy future here, Chai Dajin's wrinkled face turned into a ball.

He slowly came to his field and saw that the ten acres of rice fields were beginning to bear rice ears. This year's harvest was expected to be the same as in previous years. There was a guaranteed harvest, but the rice could not be sold at a good price.

He turned his eyes and was surprised to see that the tomatoes grown in the mountains next to him were actually bearing fruit! Although they were only small fruits the size of a baby's fist, with an immature green color in the red, they were full of fruits.

The branches look very pleasing to the eye.

Chai Dajin was surprised and happy. He stepped forward to take a closer look and found that the harvest was really good! It looked like the harvest was very good!

You must know that this mountainous area has a lot of gravel and is extremely barren. Moreover, due to lack of water and high salinity, it is basically impossible to grow vegetables, fruits, sweet potatoes, etc. Later, Chai Dajin had no choice but to abandon it.

More than two months ago, my son, who was still in college, suddenly asked someone to send back a few packets of tomato seeds. They said they were new varieties that had just been launched, developed by some genius student, and were resistant to barrenness, drought and salt-alkali.

Chai Dajin didn't quite understand the previous content, but he understood what his son said later. His son asked him to try planting them in a piece of abandoned mountain land at home. Anyway, a few packets of seeds are not expensive, and they are the same as ordinary tomatoes.

The seeds are about the same price, and if they actually grow, it will be an extra income for the family.

Chai Dajin didn't quite believe that tomatoes could be grown in that wasteland where even sweet potatoes, the easiest to grow, could not grow. However, his son was a college student and knowledgeable. Chai Dajin still followed his son's advice, reclaimed the wasteland, and planted those seeds.

A few packets of seeds, and watering them every day.

Chai Dajin originally didn't have high hopes for the tomatoes in this wasteland, but to his surprise, a few days after planting them, green tomato seedlings actually grew in the ground. This was the first time that he wanted to grow tomatoes.

We knew that the land was so barren that even grass could not grow densely, but the seeds named "Lime Easy to Grow Type I Tomatoes" actually survived successfully, and the germination rate was very high!

Chai Dajin estimated that at least more than 80% of the seeds germinated successfully.

Such a high survival rate may not be possible even in fertile land!

This made Chai Dajin excited and began to pay attention to this wasteland. He strictly followed the planting requirements described by his son and watered them every three days. After the tomato seedlings grew up, he cut branches to build scaffolding to facilitate the climbing of tomatoes.

Climb and grow.

More than two months passed like this, the tomatoes bloomed, and then today, they actually bore fruit!

There was basically no need to fertilize, spray pesticides, or use herbicides during the entire process, because there were not many weeds growing in this wasteland, and some were pulled out by Chai Dajin in advance.

Although he doesn’t know the size, quality and taste of the final fruit after it is fully mature, Chai Dajin made a rough estimate based on decades of experience. This half-acre of wasteland is estimated to be able to produce nearly 1,200 kilograms of tomatoes. Now tomatoes are in the county.

The price is about 6 yuan per catty, which means that this wasteland will bring him more than 7,000 yuan in income!

Even if the quality of the final tomatoes is slightly worse and the unit price is cheaper, after deducting the cost of seeds and transportation costs, the income of 5,000 yuan is definitely there!

This is 5,000 yuan! A piece of mountainous land that was originally abandoned and abandoned can actually earn 5,000 yuan in three months!

If you plant three to four rounds a year, you can add up to 0 yuan!

This was the family’s income for more than half a year in the past!

What makes Chai Dajin even more excited is that he has about two acres of similar wasteland on other hillside, which has been abandoned before. If all these wastelands are used to plant these "lime easy-to-grow type I tomatoes",

The annual income can be tens of thousands more!

Chai Dajin couldn't help but giggle when he thought about his annual income that had doubled several times.

If you can save 50,000 yuan a year, it will be 150,000 yuan in three years. Although you still can't buy a house for your son in the city, it should be enough to at least make up the down payment in a small county. If it's not enough, you can postpone it.

In two or three years, we will definitely be able to collect the down payment!

His eyes fell on the ten acres of paddy field, and he couldn't wait to call his son to report the good news. By the way, he also wanted to ask his son if there were any new varieties of tomatoes suitable for ordinary land with higher yields. In such land, there are actually

It is also not suitable for growing rice, and the yield per mu has not been increasing. If you switch to growing new varieties of tomatoes, your income may be much higher!

However, he finally suppressed his excitement and planned to wait for the tomatoes to be harvested in a few days and sell them in the county before telling his son the good news.

At this time, the neighbors in the field next to him also discovered that Chai Dajin’s wasteland had turned waste into treasure. They came over and asked curiously: “Uncle Chai, what kind of tomatoes are you growing at home? Can this wasteland also grow fruits?”

"Yes, Lao Chai, please give us some advice. We are almost dying of worry. I also have several pieces of wasteland like this in my house, which have always been left uncultivated and unable to grow anything."

Looking at the villagers who came around to "learn from it", Chai Dajin proudly showed off: "It's nothing, this is a new variety that my son found. I don't know where to buy it. If you want to plant it too, I'll do it."

Ask your son in a few days."

"Hey, it turns out it's a new breed your son found. College students are different and educated!"

"That's right, Lao Chai, don't wait for a few days, and ask us tonight? By the way, is this kind of food expensive? What's the survival rate?"

…

It was already evening when Chai Canming received a call from his father. Only the village chief's home in the village had a phone, and all the villagers had to pay one or two yuan from the village chief's house to borrow a phone to make calls.

Chai Canming was stunned when he heard his father's words.

At first, he just accidentally saw such a new variety of tomato seeds on the Internet, and the packaging said "developed using patented technology exclusively authorized by Qin Ke and Ning Qingjun", which made Chai Canming quite interested.

He had great admiration for these two nationally famous scholars, especially when he discovered that there was a line on the back of the package: "At the request of Qin Ke and Ning Qingyun, the inventors of the patented technology, in order to promote new seeds and increase farmers' income, this model

The selling price of seeds will not exceed the average selling price of tomato seeds on the current market. Price supervision is welcome.” I felt so much better that I immediately bought a few packets of seeds and sent them home.

Unexpectedly, only about three months later, good news came to my family that these tomato seeds could actually survive and bear fruit, turning wasteland into a treasure land!

Chai Canming was stunned for a while before replying: "Dad, don't worry, I'll look for it again. If I remember correctly, there should be other types of tomato seeds, which are also developed using the patented technology of Qin Ke and Ning Qingyun...

...Oh? You don’t need to care who they are, anyway, the things they develop are all high-quality. I bought them and sent them home. After the rice is harvested, you can try planting them first and compare them to see what the difference is. Then I will buy them in bulk.
To be continued...