[This chapter is a 50-month pass plus update]

……

Sister Doudou clicked the mouse again, and quickly opened various folders, which was dazzling, just looking at all kinds of things jumping around on the screen, and I didn't know what I was looking for. Pen & Fun & Pavilion www.biquge.info

came to this trick again, Liu Chen wanted to laugh, it was really Sister Doudou who had no sense of innovation, no wonder it took her six years to graduate, and it was the result of Mr. Lin's secret help.

Han Jiaren had a bitter gourd face, he had been waiting for ten minutes, and he couldn't understand what she was doing at all, so he reminded: "Senior sister!"

Sister Doudou looked at the computer screen for a while, and even took a copy of "Motor Dragging" from the desk to quickly find the catalog, flip through it, then scan from top to bottom, flip through the catalog, look for it again, and then look at Han Jiaren blankly, "Oh, junior brother, what's the matter?"

Han Jiaren is about to cry, I really want to say, sister, your acting skills are definitely powerful, what about my information?

Liu Chen really couldn't bear to look at him embarrassed like this, and said: "Didn't Mr. Lin say just now, the model research of the communication between the fan pitch system and the main control, the pitch system is to change the windward angle of the fan, and the main control is the control of the generator. ”

"Okay, if you don't understand, you can ask me. Sister Doudou replied very seriously, her eyes were still looking at the scientific and technological literature on the computer screen, and occasionally flipped through the book next to her, as if she was seeking verification.

Liu Chen really couldn't hold back and was about to burst into laughter, Sister Doudou, are you being funny? The messy documents on the screen don't match the book in your hand.

It's really not easy for this sister to finally graduate with a doctorate, and I can't hold on to it halfway and have a baby, if there is divine help, it will take 6 years to graduate.

In fact, Liu Chen was still engaged in research, and some small achievements of leftovers were too lazy to write and directly threw them to her, and finally wrote two EI papers to meet the basic graduation requirements, and Mr. Lin pleaded with her again. Only then was the plea granted.

In his previous life, Liu Chen wrote SCI papers with an impact factor of more than 6 in his second year of graduate school, and he didn't bother to write those low-level papers. Once Sister Doudou couldn't hold back her papers in the laboratory, she broke down and cried, which moved her compassion, after all, the babies were born, so it was better to graduate early. The big boss, Mr. Yan, saw that she was not the material, and began to persuade her to quit.

As for Professor Chang, he didn't look at a few students in this group at all.

"Okay, I'll go back and search. Han Jiaren said helplessly.

successfully sent him away and kept the "top secret" information, Sister Doudou's interest also increased, she is the group flower of this research group (there is no way to be a woman), and said with a smile: "Gao Jian, Huang Kai, Zhang Jun, junior brother is here, you don't get up to say hello, people are big bulls." As soon as I came in, I started to work on my paper. ”

It's a bit ridiculous and sarcastic.

Han Jiaren also took the opportunity to say hello to them, "Senior Brother Wang is good, Senior Brother Gao is good, Senior Brother Zhang is good." ”

Liu Chen also politely said hello, Senior Brother Gao Jian, he is also familiar with it.

Huang Kai and Zhang Jun are the senior brothers of Yan Er, these two guys are very good at making paste, and in the end, it took a lot of effort to get a small paper that the school asked to publish, Liu Chen heard Sister Doudou talk about these two people in his previous life.

And Senior Brother Gao Jian has just graduated with a master's degree and transferred to a doctorate, which is a doctorate. The strength is very strong, and he is also very arrogant, experienced in hardware, and proficient in using DSP, DSC, PLC hardware programming. He has some attainments in motor control and switching power supply, and is taking the two paste brothers to engage in hardware development.

The two senior brothers were often reprimanded by Gao Jian, and every time they spoke very fiercely, they didn't save face at all, and the two of them were very in awe of him.

"Hello junior brother. ”

"Hello junior brother. ”

Huang Kai and Zhang Jun both politely replied, only Wang Han didn't even look at Han Jiaren and Liu Chen. didn't respond at all, still staring at the computer and seriously drawing a two-layer PCB (printed circuit board) with Protel, Liu Chen knew his temperament, so he didn't care.

Han Jiaren frowned, a little unhappy, and said in his heart, why are the two doctors in this laboratory so weird, a female doctor likes to click the mouse and pretend to be stupid, this third kind of person doesn't care, a male doctor even ignores people at all, damn, am I here in the wrong place?

The two were about to say goodbye, Gao Jian put down the work in hand, and said: "I want to write a thesis as soon as I come in, don't be ambitious, lay a solid foundation first, now many masters can't even draw a circuit board, PI and PID feedback can't figure it out, soldering a component, even capacitors and inductors can't be distinguished, and conventional switching power supply circuits don't understand, what kind of papers?"

This is obviously talking about himself, Han Jiaren's face changed slightly, and after thinking about it, he was a newcomer for the first time, and if he didn't bother with him, he might indeed be a little anxious.

Huang Kai and Zhang Jun looked at each other, afraid of Gao Jian and did not dare to say anything.

Gao Jian stood up with a circuit board in his hand, glanced at Han Jiaren, and asked lightly: "Did you ever do actual hardware circuits when you were an undergraduate? ”

"The hardware has also been exposed to some, and I made a PMSM driver board after my undergraduate degree, but it is very common and very simple, directly copying the ready-made circuit in a book, heh, I have been drawing it for several months, and it took more than a month for the motor to rotate. Han Jiaren replied in a relaxed tone as much as possible.

"It's okay to be able to debug it", Gao Jian's face said coldly, "What about you?"

"Me?" Liu Chen pointed to himself, not expecting Gao Jian to ask him.

"Is there anyone else besides you, what projects have you done?" Gao Jian frowned, even more displeased, and his voice became sharper.

Liu Chen said in his heart, he had also been in contact with Senior Brother Gao Jian in his previous life, he was not so cold, his complexion was very white, and he was very tender, even a girl could not compare, it would not be an exaggeration to say that it could be broken, and there would be a layer of redness when the weather was hot, a little girly, and he really didn't like to laugh, but today his temper is a little too choking.

"I've done two projects, one is a music player and the other is a DC power supply. ”

"The music player has no technical content, there are few components, a lot of work is done in programming and algorithms, and the sound quality is stronger than that of Soni, and the sound master is also better than the algorithm, far less complex than the PMSM driver board, is the DC power supply buck or boost structure?" Gao Jian snorted and asked with a cold face.

Han Jiaren smiled a little, and said in his heart, hey, my hardware level is quite good, my senior brother has praised me, is that okay, our Bingcheng University of Technology has always adhered to: strict specifications, kung fu to the home school motto, are real technology, do not play false.

The driver board of PMSM, I drew eighteen versions before finalizing it, and each component was soldered by myself, and it was debugged again, ha, it's really great. (To be continued.) )