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 After reading the "Laboratory Safety Manual", Chen Wanqing instructed Xu Qiu to put on a lab coat, disposable PE gloves and an activated carbon mask.
 Everything is ready, she introduced:
 "The main research field of our research group is solar cells, while I mainly do organic research.
 The preparation of solar cell devices in the laboratory requires the use of substrates. The substrates we use are glass substrates printed with ITO, that is, indium tin oxide patterns.
 ITO has high electrical conductivity and light transmittance, and is a good electrode material.
 This kind of substrate is imported from the United States, and the cost is relatively high, about 4 dollars a piece, so Teacher Wei asked us to reuse it. "
 Today I will teach you how to clean the substrate. "
 "Okay, senior sister." Xu Qiu nodded.
 …………
 [Substrate cleaning skills detected, is it recorded? 】
 "Record." Xu Qiu said silently in his heart.
 At the same time, he noticed that the system interface was updated.
 【Scientific Research Auxiliary System】
 Privilege Level: 1
 Points: 100
 Tasks in progress: 1
 Proficiency:
 【Experimental operation class】
 Clean the substrate (1st stage 0%/4th stage 50%)
 【Instrument and Equipment】
 Ultrasonic cleaner (third stage 20%/fifth stage 0%)
 Tweezers (2nd order 50%/4th order 50%)
 Nitrogen gun (first stage 0%/fourth stage 50%)
 ##
 The first level 0%, the second level 50%, and the third level 20% represent Xu Qiu's current proficiency.
 Because he has been exposed to ultrasonic cleaners and tweezers in the experimental class, he has initial proficiency.
 The latter 50% of the fourth level and 0% of the fifth level are the proficiency of the auxiliary system to copy the operation of the senior sister, which can be roughly regarded as the upper limit that he can achieve in the short term.
 A laboratory operation usually requires the use of multiple instruments and equipment, and its proficiency depends on the least proficient of these instruments and equipment.
 After unlocking the new function, Xu Qiu couldn't wait to try it out, so he communicated with the system:
 "I want to deduce the cleaning substrate from 50% of the fourth stage to the fifth stage. How many points are needed?"
 [1×50%×1000×2=1000 points are required. 】
 Well, can't afford it.
 He is still a first-order 0% pure cute newcomer, he should work hard to complete the task and accumulate points first.
 Just use the senior sister first, and let's make do with it.
 …………
 "I leave it to you, you can call me anytime if you have any questions."
 Chen Wanqing demonstrated the operation process, then handed the remaining old substrate to Xu Qiu, and returned to her seat.
 "Okay, thank you, senior."
 The master leads the door, and the practice depends on the individual.
 The road to scientific research begins with odd jobs.
 Xu Qiu first carefully picked up an old substrate and observed it carefully.
 The surface of the substrate is square, on which some silver-white electrodes and black coating materials are attached.
 According to his visual inspection, the length and width of this substrate are about 2.5 centimeters. Considering that it is produced abroad, the specification should be 1 inch, which is 2.54 centimeters, and the thickness is about 3 millimeters.
 This small piece of glass is worth 30 yuan, and scientific research is really expensive.
 He turned on the auxiliary system, selected the "cleaning substrate" item, and started to operate against the image.
 The image has been abstracted by the system, and the operator is not a senior, but a virtual villain.
 You can clearly see the operation details of each step, and you can also pause, fast forward, and adjust the progress according to your heart.
 He quickly entered the state and began to operate by imitating the image.
 "First, use tweezers to place the old substrate on the support, taking care not to touch the center of the substrate as much as possible to prevent scratches."
 ...
 Because of his experience in using tweezers, Xu Qiu quickly filled a bracket, picked up the bracket and counted, there were 24 pieces in total.
 [Tweezers proficiency +20%]
 “Then, put the rack full of old substrates into a box labeled “soap” and pour soapy water until the liquid level covers the rack. Then close the lid and clean it in an ultrasonic cleaner for 20 minutes.
 Next, the substrate was sequentially transferred to deionized water, acetone, and isopropanol, and each was ultrasonically cleaned for 10 minutes. "
 There is no difficulty in these steps. The ultrasonic cleaner only has a master switch, a start/pause button, and four buttons for setting the time.
 Just set the time, put the box in, press the open button and that's it.
 ...
 [Ultrasonic cleaner proficiency +80%]
 During the process of ultrasonic cleaning the substrate, there is no need to watch the whole process, and other work can be performed at the same time.
 Xu Qiu was not idle, and took this opportunity to fill up four more brackets.
 [Tweezers proficiency +40%]
 Originally, he wanted to get close to his senior sister, but when he saw Chen Wanqing sitting on a chair, he sometimes held his forehead and frowned, sometimes he tapped the keyboard quickly as if he had realized something, and sometimes he looked at the paper materials at hand, as if he was in a hurry. In a state of concentration and ecstasy, this idea was dispelled.
 After four rounds of cleaning, only 14 relatively clean substrates remained.
 This is not Xu Qiu's operation problem, but because some old substrates have relatively strong attachments on the surface, and it takes several rounds of cleaning to clean them.
 A petri dish can hold 12 substrates, and he took out two petri dishes from the cabinet.
 View system images:
 "Finally, use tweezers to remove the substrate from the isopropanol box, being careful not to dip the tweezers under the liquid surface to prevent contamination.
 Blow it dry with a nitrogen gun (nitrogen stream can be sprayed), and put it into a clean petri dish. "
 Xu Qiu casually picked up a pair of tweezers and picked up a piece of substrate. With the other hand, he held a nitrogen gun, and then pressed the switch of the nitrogen gun.
 "Snapped."
 The substrate was blown away by the nitrogen gas flow and fell onto the table.
 The dropped substrate will stick to dust and other impurities, so it can only be rebuilt and cleaned again.
 Xu Qiu shook his head and began to analyze the reason:
 On the one hand, it was the first time to use a nitrogen gun, and he did not properly control the size of the airflow. This time the airflow was obviously too large;
 On the other hand, he felt that the tweezers in his hand were not holding firmly.
 Is it a problem with your own method?
 He looked carefully at the video again, and finally found that the tweezers he used were not the same as those used in the video.
 One head is pointed and the other is flat.
 Putting down the pointed tweezers in his hand, Xu Qiu chose a new pair of flat tweezers.
 Tried again, sure enough the new tweezers held the substrate much more securely.
 ...
 A total of 11 washed and dried substrates were obtained.
 Xu Qiu was inexperienced, and two pieces were blown away again.
 [Tweezers proficiency +10%]
 [Nitrogen gun proficiency +120%]
 I had prepared two Petri dishes, but none of them were filled.
 After completing a whole set of procedures, Xu Qiu opened the system page.
 【Scientific Research Auxiliary System】
 Privilege Level: 1
 Points: 100
 Tasks in progress: 1
 Proficiency:
 【Experimental operation class】
 Cleaning the substrate (second stage 20%/fourth stage 50%)
 【Instrument Equipment Tools】
 Ultrasonic cleaner (fourth stage 0%/fifth stage 0%)
 Tweezers (3rd order 20%/4th order 50%)
 Nitrogen gun (second stage 20%/fourth stage 50%)
 ##
 Seeing the rapid increase in proficiency, Xu Qiu was very satisfied.
 He held a petri dish with a clean substrate and handed it to his senior sister for acceptance.
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 Xu Qiu, a 985 college student, unexpectedly obtained a scientific research assistance system after applying for a research guarantee. Since then, a new star has risen in academia. 
 PS: This article is a daily scientific research article, not a black technical article. I want to show a real scientific research circle, and the pace is relatively slow.
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 I slept from the 21st century to the 1990s, an era where even pigs could take off as long as they stood on the cusp of the storm. 
 Li Manjun was overjoyed and made money! 
 However, just when she rolled up her sleeves and prepared to fight against this era, her mother dragged Aunt Wu in front of her. 
 Aunt Wu: "Manjun, you are old now. It's time to find a partner and start a family. If you have any ideas, tell Auntie. I guarantee your satisfaction!" 
 Li Manjun waved his hand: "Back off, back off! The person we talk to will only affect the speed of making money for me!" 
 Hearing this, his own mother picked up the soles of her shoes and chased after her. Li Manjun panicked and casually said that she was looking for a partner who had a car and a house and both parents were dead. 
 Aunt Wu was overjoyed: Yes, yes, I guarantee your satisfaction! 
 Li Manjun was stunned, is there really such a destiny in this world? 
 Then let her go and have a look!
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 Accidentally gain access to another world, master the resources of a planet, originally only wanted to make low-key money! 
 But Xiao Feng couldn’t think of making money so easy, and his strength expanded so fast!
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 The boss wants to marry the daughter of a big star to me... 
 (Everyday style, light comedy, no violence, no harsh words, welcome to try it...)
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 The spiritual energy recovers, others practice, and Xu Bai upgrades. 
 After getting the game system, because I haven’t received the main mission, I frantically spent 22 years of experience points. 
 Then…… 
 Xu Bai suddenly discovered that he was already invincible. 
 Practice exercises. 
 Full skill. 
 Everyone: “Why don’t you have a bottleneck.” 
 Xu Bai spread his hands: “What’s the bottleneck, click to upgrade, isn’t it enough?”
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<div class="content">
 A bitter filigree 
 After getting a system of “The Sims” 
 In a different world 
 Experience life, rewrite life, perfect life … get massive achievement points 
 So, in reality 
 Wealth, status, beauty, one after another
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 A treasure of rich women's love literature. When a man becomes version T0, he will become a true god! 
 The king of gigolos in the entertainment industry, his teacher is Cao Dahua, the tiger of serious cases. 
 Eating gigolos is the style of our generation. 
 Eating gigolos is a role model for men. 
 Have you eaten gigolos today?
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 He had been missing for eight years. But no one thought that he had traveled to another world and had cultivated for eight thousand years!
 He abducted the wealthy daughter. But no one thought that while abducting his daughter, he would kill other people’s fiance by the way.
 He is looking for his sister. But no one thought that while looking for his sister, he overturned all the big forces on the earth at the same time. He can refine alchemy and fight, if someone provokes him…
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 “You are a radish, you are an eggplant, I am a cucumber… No, so I am the youngest, come again, I am a winter melon…” 
 Deep in the rainforest basin of the Congo, Africa. 
 Facing a group of primitive tribal warriors, Wang Kui actually taught them how to play carrot squatting live, and this was the first day he came to West Africa to help this tribe develop against the cannibals. 
 North American Deep Sea Fishing King Competition; 
 Chasing snow leopards on the top of Pamir; 
 Australian wildfires kill giant bats; 
 Canadian Blizzard Fight the Brown Bears! 
 I am Wang Kui, an outdoor wilderness anchor and professional hunter, and I started with only one person, a knife, and… a wolf dog who committed a murder!
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 Yang Jinrong, who majored in law for two and a half years, never imagined that he just happened to pass by the girls' dormitory, and was slandered as a voyeur by a senior sister who shot a video and posted it on Weibo. 
 The senior sister even pointed out that she suffered from depression because of this, which seriously affected the mentality of the postgraduate entrance examination, and asked the school leaders to recommend graduate students, "Girls don't joke about their innocence!" 
 Facing the pressure from school leaders, thousands of Internet users, and being sent wreaths to Yang Jinrong, he endured it all the time, "I'm sorry, I'm blind!" 
 The senior sister was aggressive, "How do blind people go to school?! They're lying to ghosts! I've called the police, and I'll go to jail!" 
 But when the police arrived, it was the senior who was taken away. Yang Jinrong no longer held back and sued. The court insisted: "Insulting, spreading rumors, defamation, personal assault, invasion of privacy, stepping on the sewing machine is your fault... The final destination!" 
 The whole network is reversed, Internet thugs, wreath senders, and superstars with tens of millions of fans, don't even think about running away!
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 Because of his low EQ, he only knew how to practice. At the critical juncture when he hit the Golden Immortal in Zifu, he was tricked and beaten back to his childhood.
 He learned from the pain and decided to go to the officialdom to exercise his emotional intelligence.
 Sometimes it’s too much fun, sometimes it’s ridiculously fucking, but there is still a bit of fairy aura in the body, which can fix some unprovoked misfortunes. Such a freak rushes into the officialdom of lawlessness…
 **********
 Friendly reminder: In order to protect your monitor, it is not recommended to eat snacks or drink beverages while watching this book.
 **********
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<div class="content">
 In a private room of a restaurant. 
 A handsome boy sits in front of a lady. 
 Xiao Yu: I am here for a blind date. 
 Lady: Blind date? 
 Xiao Yu: “Stop talking nonsense. I am moved by your good looks. You can find a way to fall in love with me. I only give you one chance among 1.4 billion people!” 
 Lady: What if I don’t accept? 
 Xiao Yu: I hope you don’t be ungrateful and narrow your own path! 
 Lady: Ha… OK. 
 Xiao Yu: What? 
 Lady: I ​​said OK, I accept it. 
 Xiao Yu: … 
 A waiter came over and said to Xiao Yu awkwardly: Sir, I am sorry, the private room number I just told you is wrong! 
 Xiao Yu looked at Lady: You are not my blind date? 
 Lady: Now I am. 
 Xiao Yu: Ah this! … (Tactical retreat) 
 Just when Xiao Yu found his blind date next door. 
 Lady came over and kidnapped Xiao Yu…Author's Other NovelsNational Security Bureau 8: I, the King of Criminal Cases
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<div class="content">
 In 1984, the first year of Chinese private enterprises. 
 This year, Haier President Zhang was in danger and took over the mess of Qingdao General Refrigerator Factory; 
 This year, TCL Manager Li was in a rudimentary agricultural machinery warehouse, producing audio tapes; 
 This year, Vanke President Wang is going to use the money he earned from selling corn to establish a company; 
 Also in this year, after rebirth, Li Weidong squatted at the door of the workshop, thinking about making a fortune… 
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I Have a Research Support System

Chapter 4 Cleaning the Substrate

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I Have a Research Support System

Chapter 4 Cleaning the Substrate

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