Chapter 270: So as long as the sample size is large enough, the normal distribution won’t bother me

If there is no "Nature·Materials" that raises the upper limit of the ADA system's efficiency to 10%, and the efficiency of the elder sister here is 6.1%, you can use "outstanding (outstanding or "remarkable (extraordinary. Adjectives to describe.
　　 And you can add another sentence at the end, "As far as we know, this is the highest photoelectric conversion efficiency of the current ADA system", so it is perfect, not only B is installed, but others are not FUCK said.
　　 But now, being put on a big hat by others, it is a bit difficult to be true.
　　 Xu Qiu struggled for two minutes, and finally typed a word, "impressive".
　　 thought for a while, deleted it again, and typed out the four letters "high" again.
　　, let’s describe it more plainly...
　　 After modifying the abstract, continue to modify the introduction.
　　 One night passed quickly, and Xu Qiu's progress in changing the article was only about 30%. It is true that the senior sister's ability to write articles is limited, and many mistakes made will be repeated a second or even third time.
　　 can also be understood, after all, language things are not like experimental operations, it is difficult to make quick, and it is difficult to correct them if they are used to wrong usage.
　　 Just like the word "meal" in many restaurants nowadays, it still uses a simplified version, only the upper left corner. Of course, this cannot be said to be a "error" in the strict sense, but the truth is similar.
　　 On Thursday, Xu Qiu spent the whole morning and half an afternoon again, finally helping the senior sister to finish the article.
　　 "Here," Xu Qiu handed the U disk to Chen Wanqing, and said weakly: "After reading it again, the review mode I used has all the traces of modification on it."
　　 "Thank you, brother," Chen Wanqing took the U disk and happily suggested, "I invite you to drink milk tea with the school girl."
　　 "Okay!" Han Jiaying responded quickly, "Brother, what do you want to drink?"
　　 "It's refreshing," Xu Qiu thought for a while and said, "Yang Zhi Ganlu."
"Um..." Han Jiaying took Chen Wanqing's mobile phone, browsed the merchants in the takeaway software, searched for two minutes, and said: "Then we will order this'five-point sweet', I want a glass of mango, how about you sister? ?"
　　 "I'm just like you," Chen Wanqing said casually, busy changing the article.
　　 A few minutes later, Chen Wanqing synced Xu Qiu's changes to her own draft file, and then brought the final version of the draft file to Mr. Wei.
　　 At the same time, Xu Qiu created a blank WORD file on the computer desktop, then put his head on the table, rolling his face on the keyboard of the laptop, emptied himself, and reviewed the work situation in the past month:
　　 During this period of time, in addition to doing experiments, he first wrote an NC, then an EES, and finally helped his senior to change an AM. The three consecutive articles were high-quality articles.
　　 For this kind of high-quality work, even if the work itself is solid, the words and sentences should not be too casual when writing the article, and the paragraphs and sentences must be carefully crafted.
Because whether you are a peer reviewer, editor or other researcher, you understand that your work is based on text reading. If the article is separated by grammatical errors, spelling errors, or looks like a pupil composition, it will undoubtedly affect their understanding of the article. His first impression and overall feelings, an article that might have had the opportunity to be published, was rejected because of its poor language expression.
　　 These days, the smell of wine is also afraid of the deep alley.
　　 Because of this, Xu Qiu has devoted a lot of effort to these three articles, so that now he feels that his energy is almost drained, a little bit empty...
　　 When I remembered that I would write another article about the school girl’s B3T-6 system, he was just the first two.
　　 Fortunately, that article is going to be submitted to ACSAMI, a periodical in the second district. It will be much easier to write, and you can put the water appropriately.
After rolling his face on the keyboard for a while, Xu Qiu raised his head and looked at the computer screen, and found that he hadn’t typed out a complete works of Shakespeare, but rather a bunch of garbled codes:
I sent the card to see Hai Fang Ke Jin Huan Jiang. The research frame is set, and Fan Azhulin turns to the Ajia Separation System..."
　　 took a closer look, it didn’t seem to be all garbled.
　　 ‘It seems that I have some skills in this face,’ Xu Qiu spit out, X dropped the WORD document and deleted the file.
　　 Friday afternoon, before the holiday.
　　 Chen Wanqing's article was successfully submitted, and Tian Qing's summary plan has also been submitted to the editor.
　　 Xu Qiu and Han Jiaying dealt with the experimental data of the B3T system and did not rush to write articles.
　　 Wu Feifei and Sun Wo are still exploring the experimental conditions of the two-dimensional perovskite system.
　　 Duan Yun’s experiment seems to have entered a bottleneck period. The performance of thermoelectric devices is very poor. It is speculated that the quality of the silver nanowire solution purchased is not good enough.
　　 Wu Shengnan and everyone in the laboratory are basically familiar.
　　 Xu Qiu always feels that Wu Shengnan talks to himself more often, and he is a little confused about the number of newcomers to the post. "The junior girl holds gold bricks. These two and a half gold bricks are a bit unbearable. ’
　　 After four o'clock in the afternoon, Wei Xingsi appeared at the door of 216 and said something like "Be careful during holidays" and the like, and finally said:
　　 "You clean up the laboratory. I'll go back first. When I leave, the doors and windows are closed. Remember to come in the afternoon of May 5th to have a group meeting."
　　 This long May Day holiday, Wei Xingsi did not "cut the head and tail" like the previous National Day holiday, but only "cut the tail", that is, to rest from May 1 to 4, and start work on the 5th.
On the one hand, it is considered that "it seems to be a five-day holiday, but in fact there is only one day", because it includes Saturday, Sunday, and two days before and after the holiday. On the other hand, it is also because Teacher Wei is on holiday. Go to Qiongdao to play with his wife and children.
According to Wu Feifei, Mr. Wei and his wife met while studying for a doctoral degree in Beautiful Country. The master's degree he obtained at Madu Jiaotong University in China is not recognized abroad, so he studied for an additional three years of master's degree and four years of doctoral degree. . During the Ph.D. study, the two got married and gave birth to twins. The two children are the relationship between the older brother and younger sister, and they are both eight years old this year.
　　 After all, Wei Xingsi only opened the trumpet when he was close to thirty-five years old. It was very late at that time. After all, it was a period when men and women were in their early twenties on average, and when they reached the legal marriage age, they got married and had babies.
Mr. Wei’s situation is not very common in the current scientific research circle. Many of them are married during the Ph.D. of course. Of course, there are earlier ones. Xu Qiu’s circle of friends can see undergraduates posting their marriage certificates. Yes, if you graduate later, many people will get married immediately after graduation, but there are some leftovers, which are basically older men and women leftovers, and may not even have the idea of ​​getting married.
　　 Teacher Wei occasionally takes the child to the office on weekends. Xu Qiu has met several times before, and he is quite cute.
　　 At present, the two little guys are studying in the primary school attached to Mordu University.
　　 People who work in the education system like college professors and middle school teachers have great educational welfare for future generations. From elementary school to high school, there is basically no need to consider school district housing and other issues.
　　 In addition, although their children have to take the college entrance examination as usual, they have the resources of their parents in other ways such as independent enrollment and subject competitions, which will be much more competitive than ordinary children.
　　 Of course, the width of the road does not mean that the children will definitely reach the height of their parents in the future.
　　The reason is also very simple. Even if family factors make their upper limit of development much higher and the lower limit higher, statistically, most of the possibilities still fall into the middle of the mean.
Just as the experimental test data usually presents a normal distribution, so does the fate of all living beings. The future of most people is to go to an ordinary university, find a decent job, and marry a decent object. End of life.
　　 "Elite origin" alone is not enough to break this statistical limitation.
　　 However, there are still smart people in the world. Many rich people, such as some big bosses in Hong Kong City, like to have more children to avoid danger.
Since 　　 is a normal distribution, as long as the number of samples is large enough and there are enough births, there is a high probability that there will be several very good offspring, and then like the ancient emperors who choose heirs, qualified successors will be selected from them.
　　……
　　 The four-day vacation is neither long nor short.
　　 Xu Qiu’s schedule is:
　　 May 1st and 2nd, bedroom, house.
　　 May 3rd and 4th, go out, wave.
　　 did not plan to go home, because in addition to the winter and summer vacations, it would take two or three days to return home during small holidays. The fixed time cost was too high, so I could only call home to report safety.
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　　 Han Jiaying's plan is to go home two days ago, and then return to the magic city on May 3rd, and go out to play with Xu Qiu. They checked the weather specially and it was sunny on the 3rd and 4th.
The school girl’s home is in Sioux City, very close to the devil. Before, she returned home once a week, but later it became once every two weeks. Some time ago, due to continuous overtime work for almost a month, she didn’t go home. homesick.
　　 Chen Wanqing’s hometown is also far away from the magic city, so she, like Xu Qiu, chose to be a house girl in peace.
　　 As for the other people in the research group, they are not locals in the magic capital, or in the Jiangsu, Zhejiang and Shanghai areas. Some choose to go home, and some take advantage of the long vacation to go out.
　　From the proportion of students, we can roughly see the imbalance of educational resources.
　　 In a research group, the sample of graduate students is relatively small, but Xu Qiu knows the situation of undergraduates better.
Mordu University enrolls approximately 3,000 undergraduates each year, half of which are non-college entrance examinations, including independent enrollment, comprehensive evaluation, high-level art troupes, high-level sports teams, national special plans, special plans for colleges and universities, Hong Kong, Macao and Taiwan exemption admissions. .
　　 The other half came through the normal college entrance examination. There were about 1,500 people. In the province where Xu Qiu was located, only about 10 people were admitted.
　　 In the year of his college entrance examination, the two enrollment methods added up the entire province only 12 people were admitted.
　　 In general, the province's enrollment ratio is less than four per thousand.