Chapter 28 We will have something better!
Chang Haonan's experiment continued until dawn.
The previous simulation and experimental results are exactly the same in terms of rules, which proves that his direction is correct, but the calculation accuracy in specific cases still needs to be improved.
The best version has an efficiency increase of more than 25% compared to the original design, and the noise is reduced by an astonishing 10 decibels.
Don't underestimate this number. Decibel is not a linear value. A 10-decibel reduction is basically equivalent to a drop to half of the original value in the perception of the human ear. This is already an exaggerated improvement.
When doing testing in a semi-anechoic chamber, he could almost only hear the sound of the motor.
Chang Haonan straightened his aching waist and moved his body slightly, listening to the crackling sound of his joints.
His attention had been on the experiment just now, so he didn't feel anything. But now that he relaxed, a sense of fatigue swept over his body instantly.
Back in the dormitory, he fell asleep at the speed of light again after touching the pillow. This has almost become the norm since Chang Haonan was reborn.
Perhaps it can be regarded as one of the benefits brought by the system. After all, he has had insomnia since high school.
When I woke up, it was already afternoon.
After simply washing up, Chang Haonan was going to change his clothes, then find an empty classroom to write out the patent document, and then go to the patent office to submit it.
Just as he was about to go out, he happened to meet a few roommates who pushed in from outside. They must have just returned from lunch.
“Nan Shen, have you read this month's magazine?”
"Magazine?"
Chang Haonan has been sleeping since early this morning, so of course it is impossible for him to work hard.
In fact, from the time he was reborn until now, he went to the library to read the latest news the night he was eating roast duck, and then he has been busy with design work.
“It says that our navy may need to buy two new destroyers.” Liang Hao said, pushing a magazine he was holding over: “That's the first article.”
At this time, Chang Haonan also came to his senses. It should be about the two modern-class destroyers.
“If we can really buy these two ships, we will at least have a way to deal with the aircraft carrier.” Liang Hao was obviously very excited about this.
“What use are two broken ships from the Soviet Union? The missiles above have a range of just over 100 kilometers, and they have to be sunk without even being able to see the shadow of the aircraft carrier.”
Huang Zhiqiang glanced at Chang Haonan next to him, and climbed into bed with a nonchalant expression: "Besides, the American Arleigh Burke has served sixteen ships. Have you heard of Aegis? It can stop any aircraft or missile, if you ask me. , don't dream about dealing with other people's aircraft carriers.”
The inappropriate cynicism made the atmosphere in the dormitory a bit awkward.
After this period of contact, Chang Haonan has roughly recalled that this Huang Zhiqiang is a standard exquisite person according to later generations, but it was rarely particularly obvious in the past.
Perhaps I was stimulated by him recently, so I became a little jumpy.
“You really don't need to be too excited about this.” Chang Haonan smiled nonchalantly and returned the magazine to Liang Hao.
He never took the other party seriously from the beginning, and there were quite a few such people even after more than twenty years.
“Huh? I thought you should be the happiest one.”
Liang Hao was obviously a little surprised by Chang Haonan's reaction.
“Let's see, in a few years we will have something better.”
After Chang Haonan finished speaking, he left the dormitory directly with the schoolbag containing the computer on his back.
The review of utility model patents generally takes 6-9 months, so Chang Haonan naturally cannot wait for the results to come out before giving out the plan.
Fortunately, patents are calculated based on the filing date, as long as you make sure to submit it earlier than others.
If this is a formal horizontal topic, then the ownership of this patent should actually belong to the funder.
But then again, setting up a horizontal topic cannot be as simple as five thousand yuan.
In short, after spending two days going to the patent office and passing the final exams of the two elective courses, Chang Haonan finally contacted Wu Yifan through the pager.
Considering that the house the other party rented off campus was still some distance from the school, after hesitating for a moment, he inserted the phone card back, opened the notebook he carried with him, and dialed his home number.
"Hello?"
When he heard his father's voice again, his mood was much calmer than last time.
“Hello, Dad, it's me.”
“…Yes, it's exam week, but there are no important exams this semester.”
“…You are talking about the aircraft design course. There is no final exam in that course. There is a course design, which is the course I mentioned before about designing fighter jets.”
“…Well, of course it's been designed, and I don't care whose son I am.”
"...It's like this. Because of the course design, there is now an academician of our college, who is the former member of the academic department. He thinks that I have good potential and wants me to join the research group in advance to participate in research, so I will not go back during the summer vacation. Next time I should go back during the Spring Festival next year.”
“Money is fine... I still have some money, so don't worry, I should have a scholarship in the second half of the year, don't worry.”
“By the way, Jia Yao told me before that she wants to participate in next year's recruitment. Has she told you about this... Oh well, what's Dad's idea..."
“Well, I also think that Yaoyao's intention should be respected, but the prerequisite is that she must have thought about it herself and not regret it after making the decision...”
“That's it for now, no more chatting, I have a classmate who came to see me...”
Chang Haonan hung up the phone, closed his eyes and took a deep breath, then pulled out the IC card and opened the door of the phone booth.
Wu Yifan was already waiting outside at this time.
“Nan Shen, you are really awesome. I originally thought that one week was an exaggeration, but it turned out to be less than four days…”
"That's right, don't look at who we are..." Chang Haonan said, taking off his schoolbag and handing it to the other party: "The final design plan is in two floppy disks, and I wrote labels on them respectively."
"Okay, but Nan Shen, the final payment may have to wait for a while. The contract states that it must be settled after they win the bid." Wu Yifan was a little worried that Chang Haonan was thinking too much about money: "But if you need money urgently, If so, I can give you some money first."
Brothers have to settle accounts clearly. Although the two of them usually have a good relationship, they still need to be clear about matters involving money.
“No need, how can I still not trust you?” Chang Haonan punched Wu Yifan on the shoulder and said with a smile.
Wu Yifan in his previous life had made hundreds of millions of dollars, and he didn't deny that these old classmates, who didn't have much money in their pockets, could still be trusted in terms of their character.
Besides, judging from the fact that he can easily buy a second-hand Jiujiuxin laptop, he won't think much about these few thousand yuan.
After handing the things to Wu Yifan, Chang Haonan took another look at his system.
Since this fan has not had any impact yet, the number of research points remains unchanged.
But [Engineering Experience] has become 60/1000, an increase of 40 points!
(End of this chapter)
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