﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>沪江博客-coolboy-最新评论</title><link>http://blog.hjenglish.com/coolboy/CommentsRSS.aspx</link><description>Coolboy is only my user ID.</description><language>zh-cn</language><pubDate>Wed, 17 Sep 2008 23:22:00 GMT</pubDate><lastBuildDate>Wed, 17 Sep 2008 23:22:00 GMT</lastBuildDate><generator>cnblogs</generator><item><title>re: 灌水（Quotations from coolboy）</title><link>http://blog.hjenglish.com/coolboy/archive/2008/09/18/1164583.html#1174218</link><dc:creator>coolboy</dc:creator><author>coolboy</author><pubDate>Wed, 17 Sep 2008 23:24:00 GMT</pubDate><guid>http://blog.hjenglish.com/coolboy/archive/2008/09/18/1164583.html#1174218</guid><description><![CDATA[失误与不端行为（外二则） [武夷山]<br><a href="http://www.sciencenet.cn/blog/user_content.aspx?id=39247" target="_new">http://www.sciencenet.cn/blog/user_content.aspx?id=39247</a><br> <br>++++++++++++<br>coolboy [2008-9-17 22:08:15]<br>标题：Easy to say but hard to do<br><br>不少情况下到底是失误还是不端行为也只有真正的行内的专业研究人员才能确定。也同事件发生之后当事人或当事人们的基本态度有很大关系。明知周老虎或耳朵认字等完全是骗局的前提下还是继续大力宣扬推广，则可确定一开始的错误就是不端行为。<br><img src ="http://blog.hjenglish.com/coolboy/aggbug/1174218.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://blog.hjenglish.com/coolboy/" target="_blank">coolboy</a> 2008-09-18 07:24 <a href="http://blog.hjenglish.com/coolboy/archive/2008/09/18/1164583.html#1174218#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div><div align='right'><script type="text/javascript"><!--
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The only thing one needs to do to make the story perfect (锦上添花，画龙点睛) was to change “pounds” everywhere in the story into “ounces”. Everybody seemed agreed at the moment and coolboy thought that was a great idea too.<br><br>Later, and much later, coolboy became a physicist and started to realize the problems of the change by the district head in charge of propaganda. First, those beans were supposed to be shared by the whole class which had about 50 students. If it were only four ounces of beans, then on average, every student would have received only about 10 beans. [Yes! As a physicist, I actually weighted and counted the beans.] Under a normal condition, those girls would not have had the idea of sharing the beans with the whole class in the first place or their classmates would laugh at them. Second, the play was supposed to be based on a true story, which was also the main reason that made the play popular. Different people can tell the same true story in different ways but the critical facts and numbers reflecting the essential truths should not be changed or changed significantly. <br><br>What the district head in charge of propaganda did was to say that, basically, the most important principle of the propaganda was political correctness rather than truthfulness. This really bothered me quite a lot. After a while, coolboy was probably one of a few who still knew and remembered the true story behind “Four ounces of beans (四两黄豆)” that was once widely spread. What about many other well-known stories that had been widely spread? For example, one can often read something like 钱学森的脑袋足以抵得上二个师。Here, the essential part is also related to the number. Why 二个师 rather than 二个集团军 or 二个营? It is a legitimate question to ask whether the number was based on truth or political correctness.<br><br>Now, returning to my assistant, as I said at beginning that she was beautiful and good at literature. More importantly, she was really a very good assistant to me or to the job for she can always finish the task of copying the articles to the classroom blackboard in a high quality and timely fashion. However, there was one special character about her: we were often in disagreement and she liked to argue or debate with me on various social and political issues.<br><br>It was true that in those years it was the best and the worst of times, it was also the era of fighting and argument (战斗的年代，辩论的年代). But we were supposed to fight against bad guys with our good reasoning and she, as my assistant, was supposed to be always in the same trench as me to fight together (同一条战壕里的战友). Other classmates usually always followed my arguments and agreed with me on various issues whereas she often liked to propose her counter arguments to debate with me.<br><br>I tried my best to raise my reasoning to convince her in debates. One effective way of doing so was to write down my logical arguments on a piece of paper, which usually also gave me an opportunity to reflect. Often, good ideas came to my mind while we were still in class. I could not debate to her right away but I can write down my new ideas on a piece of paper. Well, her desk was right behind me. Therefore, once I felt that I gathered enough logical arguments, I would pass my notes to her to let her know that she was wrong. Apparently, she can always propose her counter arguments and pass back her notes. We had quite a few this kind of notes exchanges in those two years to debate various issues. Gradually, I realized that it was impossible or hopeless to let girls, especially this particular girl, admit their mistakes. So, finally, I quit debating with her.<br><br>What happened to all those notes passed to me in classes that carried her counter arguments? I do not know. I guess I threw them away after reading those notes. Then, what was the fate of all my notes to her that carried my arguments? Well, I do not know either and never think about a question like this. I do not know the fate of my notes until very recently, after about 36 years of those notes being created.<br><br>........................<br>........................<br>........................<br><br>(To be continued)<br><br><img src ="http://blog.hjenglish.com/coolboy/aggbug/1104376.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://blog.hjenglish.com/coolboy/" target="_blank">coolboy</a> 2008-07-18 11:47 <a href="http://blog.hjenglish.com/coolboy/archive/2008/07/18/1101910.html#1104376#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div><div align='right'><script type="text/javascript"><!--
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Those beanstalks were supposed to be clean or empty with all the beans having been taken out before being used for cooking the food. However, it was generally not that easy to get each and every bean out of the beanstalks. What happened in this story was that those girls who used the beanstalks to cook the food carefully checked those dry beanstalks again and took out the leftover beans before using them to cook the food. After about two weeks of hard work, they accumulated four pounds of beans and they were planning to cook those beans and share with their classmates as snack food that evening. Then somehow, suddenly, great leader Chairman Mao’s instructions echoed around the ears of one girl. I have described before about this kind of transition in people’s mood or thinking associated with the “echoes of Chairman Mao’s instructions”:<br><br>+++++++++++++++++++++++++++++<br> 关于颜色的唯物主义和唯心主义观<br> <a href="http://blog.hjenglish.com/coolboy/archive/2005/09/05/125980.html" target="_new">http://blog.hjenglish.com/coolboy/archive/2005/09/05/125980.html</a>  <br><br>“This sentence of ‘Suddenly, great leader Chairman Mao’s instructions echoed around my ears’ was one of the most frequently used sentences in that period. In certain extent, it reflected the reality that ordinary people would ask for helps from Chairman Mao’s thoughts for any problem or any thing they encountered in their daily lives, which, of course, should also include my puzzle on color. The solution to the problem, whether it was useful or not, was almost always guaranteed. At the time, the most frequently used Chairman Mao’s thoughts would be coming from a well-known red book: “Quotations from Chairman Mao Tsetung”.  This situation is similar to the one that if you encounter new words in reading, you most likely will go looking up a dictionary for the help. The only difference is that the dictionary will not echo or echo around your ears.”<br>+++++++++++++++++++++++++++++<br><br>Based on the instructions echoed around that girl’s ears, they should not consume those beans but should return those beans to the villagers. Other girls had different opinions on the issue. Those girls then had discussions and arguments but they still cannot resolve the issue. They brought the issue to the class head/teacher who was a worker coming from a factory in response to Chairman Mao’s call to spread the proletarian revolutionary ideas (驻校工宣队员). The class head thought that it was an interesting topic to let the entire class discuss, study and decide. Finally, everyone in the class agreed that they should return the beans to the villagers and they were greatly appraised by the village head.<br><br>The story of “Four pounds of beans (四斤黄豆)” that was first published in the school blackboards was later changed into a small play by a school teacher Mr. Zhang (张云南) who was also in charge of student affairs. The play was performed by the school propaganda team and was well received in various occasions from the school, district, city, county and all the way to the province (学校、区、市、专区、省文艺汇演). It was well received and highly appraised at the time mainly because it was an original article based on an interesting true story, which was very unusual at the time.<br><br>However, there was a tiny but significant change of the play after it was performed in the district’s school art convention. The title and contents of the play were changed into “Four ounces of beans (四两黄豆)”. The district head in charge of propaganda pointed out that ......<br> <br>........................<br>........................<br>........................<br><br>(To be continued)<br><br><img src ="http://blog.hjenglish.com/coolboy/aggbug/1102870.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://blog.hjenglish.com/coolboy/" target="_blank">coolboy</a> 2008-07-17 09:30 <a href="http://blog.hjenglish.com/coolboy/archive/2008/07/17/1101910.html#1102870#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div><div align='right'><script type="text/javascript"><!--
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</script></div>]]></description></item><item><title>re: [转] 小狐狸漫谈翻译</title><link>http://blog.hjenglish.com/coolboy/archive/2008/01/02/517265.html#920259</link><dc:creator>coolboy</dc:creator><author>coolboy</author><pubDate>Tue, 01 Jan 2008 20:58:00 GMT</pubDate><guid>http://blog.hjenglish.com/coolboy/archive/2008/01/02/517265.html#920259</guid><description><![CDATA[  <br>[转]我的中医情结<br><br> <a href="http://www.xys.org/xys/ebooks/others/science/dajia9/zhongyi1460.txt" target="_new">http://www.xys.org/xys/ebooks/others/science/dajia9/zhongyi1460.txt</a> <br> <br>作者：家庭主妇<br> <br>我是个比较孤陋寡闻的家庭主妇，接触新语丝太迟了，大半年前才第一次读到。一通恶补下来，收益匪浅，现在该是有所回馈的时候了。第一次正式投稿，说说我的中医情结。<br> <br>我跟中医打交道大约始于我的诞生，因为我妈笃信中医，但凡我有啥希奇古怪的毛病，她必带我先看中医。到2007年初因为读了新语丝的缘故不再相信中医止，这四十年的看中医的经历不可谓不长，随手拈来几个小故事，与众网友分享。<br> <br>在我的老家，从不知啥时候开始，中医的头两把交椅就是大小两位张医生。这兄弟俩是国画大师张大千的后人，因为家世不凡，据说医术很有些根基。我至今都还记得小张医生的样子，白净的面皮，清朗的眼神，一双同样白净的手，指甲修剪得整整齐齐。他的诊室总是打扫得干干净净，桌面上纤尘不染，满室弥漫着一股药香加书香的好闻的气味。每次给我号脉时，他的手指尖似有若无地搭在我的腕上，沉静片时，然后温温和和地跟我妈妈说着我的病况──我童稚的记忆里，中医是一副相当温馨美好的画面。<br> <br>关于小张医生的神奇医术，最为我妈妈津津乐道的故事是那回我梦游。那年我大概八九岁吧，突然一天晚上从床上蹦起来，嘴里胡言乱语着什么“玫瑰花，三朵！”，然后跳下床满屋子乱窜，被大人们按回床上后又大哭至声嘶力竭。这样连着闹腾了三四个晚上，把我妈妈给吓坏了，赶紧带我去找小张医生。张医生静静地号了一会儿脉，然后温和地问我妈：“x老师，你最近给你女儿吃啥燥热的东西了吗？”我妈沉吟着说：“我也不晓得呃。就是上星期有老同学从新疆回来，送我点虫草，我想那是难得的好东西，就炖了一只鸡给他们吃了。不晓得是不是这个原因？”小张医生一反平日的温文尔雅、不动声色，一拍大腿说：“可不就是这个原因吗？虫草是大补的东西，极热之品，哪能给小孩子吃呀？”诊断已毕，接下来就好说了，开了几付中药拿回家熬来喝了，我的毛病就再也没犯过了。<br> <br>还有一个故事也是后来我妈爱说叨，而我自己想起来就伤心得要哭的。那是我刚上小学的事，也就是七八岁的年纪吧，有段时间我尿频，每晚睡着之前要上好几趟厕所。我妈不知从哪里寻摸回来一偏方，是用猪小肚塞满糯米，煮熟了切成片吃。按说这是好东西呀，在那油水极度缺乏的七十年代，猪小肚加糯米，怎么也算是一道上好的荤菜吧。但是且慢，这个偏方的阴损毒辣之处在于后面一个尾巴──不能放盐。大家想想啊，那么油腻腻、臭腥腥的猪小肚，没有盐怎么吃呀？每次我都是眼泪汪汪地吃一小口吐一大摊，到最后吐得胆水都出来了，一碗偏方还没动几筷子。每次我妈也是泪眼婆娑地在旁边伺候着，百般地威逼利诱；我姐呢却是眼巴巴地跟桌子边上等着──她早料定我吃不下去，就等着我妈绝望之下放弃努力，她端下去拌上盐便是一顿美滋滋的“牙祭”。<br> <br>这些都是小时候的事了，斗转星移，说话间我就大了，来了美国。美国的医疗保险不认中医，我因此十几年没再照顾过他们的生意，至到前年大学同学聚会。一位好友说起她正在看中医，原因是她想再要个孩子，和老公努力了一两年仍未果。那位中医是一老太太，据说在国内是名门出身，诊断出她肾虚，要我的同学用她开的药先养半年的肾，然后再来说怎么受孕。我一听马上心动，又打听到价钱也还负担得起，便开了一个多小时的车去中国城拜望那位中医。老太太果然是神清目朗，仙风道骨的样子，把着脉，听我抱怨了一通消化不良、睡眠失调之类的毛病以后，温言细语地对我说：“你是肾虚，我给你开点养肾的药，八副药，两个月一个疗程。另外我跟你说呀，你怀孕了，刚刚两三个星期，我再给你开点保胎药。”我大吃一惊，我们可没打算再要孩子了，而且一直有避孕措施的，怎么会怀孕呢？但是我丝毫没有怀疑她的诊断，只是告诉她说我不打算要保胎。老太太马上说，那也行，我给你开几副化胎药，你吃了自然而然就没事了，也不需要去打胎的。我一听有这么容易的事，兴高采烈地说那就麻烦您了，然后提着大包小包的回家去，顺路还买了一只熬药的沙锅。回家跟老公一说起，他马上炸了，坚决不许我吃那所谓的化胎药。老公绝对不信中医，为此我们没少争论过，但是两口子之间的争论，难得有讲理性讲逻辑的时候，所以我们基本上是各信各的，两不干涉。但是这回事态严重，老公毫不迁就，最后我们达成妥协，只吃养肾的药，化胎药就算了。后来没几天我例假来了，老公好不得意，把我那一通数落呀。<br> <br>最后一个故事是2006年我公婆来美国探亲。正值秋高气爽柿子红的季节，我去中国店买了整整一筐柿子回来，因为一大家子人都爱吃。一天我跟婆婆一人吃了一个，一边赞着真甜，一边眼馋着不敢多吃。但是我们不敢吃的原因却是迥异：婆婆说柿子不能多吃，因为是燥热的东西；而我自小就知道柿子性凉，不能多吃，尤其是女孩子来例假的时候，碰都不能碰。那天我们婆媳之间那一场大战啊，直杀得天昏地暗也没分出胜负，最后我还打电话回家把我妈拉出来助阵。我妈不好意思说亲家母有错，但是在原则问题上寸步不让，十二分笃定地说，柿子绝对大寒，孕妇吃了还会落下病根儿。婆婆的母亲早已故世，她因此无法找人求证，但是老太太一脸的倔强，冷眼看我，心中暗道，我这七十年的人生经验，难道还需要谁来帮腔不成？最后我和婆婆坚持着一天只吃一个柿子，便宜了我老公和公公两人吃得个不亦乐乎。<br> <br>说话就到了07年，第一次登陆新语丝，正好赶上中医大战，几篇文章读下来，我顿时如同吃了一闷棍（王小波语），半天作声不得，随后一阵子一直郁闷不堪。告诉你我的感觉有多糟吧：前几年不是有报道说，一女研究生被人贩子拐到山里卖了给人做媳妇吗？我的感觉不比那位女研究生好多少──智商被人强暴了，还不知道谁是施暴的恶徒。<br> <br>我辗转反侧，百思不得其解，如此显而易见的荒谬绝伦的东西，怎么我和我周围的人就从来没有质疑过呢？第一个故事里，小张医生良好的职业形象给我留下的深刻印象大约多少可以解释我后来的迷信和盲从，而我的被治愈可能也是他多年经验沉淀的结果，这应该算是中医里极少数值得保留的东西吧。以后的那些事，就真地只能叫荒唐了。猪小肚治尿频，跟牛鞭虎鞭壮阳，属于一个理论体系，就不去说它了，可不能放盐这一点，怎么我妈就从来没有想过有没有一丁点的道理在里面──那道偏方压根儿没有提过在什么时间段里不能吃盐，而每一次我用过偏方以后，我妈都是赶紧着给我做一碗放足了盐的鸡蛋挂面。就算是那时候我还太小，没有独立思考和判断的能力，那么06年那次呢？我同学是不孕，我是消化不良、睡眠失调，南辕北辙的几个毛病，那位名家出身的中医统统都给诊断成“肾虚”，而我竟没有产生丝毫的疑虑；她关于怀孕、保胎、化胎的一通胡说八道，在美国生育过两个孩子的我，仍是毫不犹豫地照单全收；更有甚者，我在例假来了以后，还坚持着把她开的所谓养肾的八副中药给吃完了。CAN YOU BELIEVE IT???<br> <br>我越想越是窝心。要说这人智商真不算低呀，若是提提“当年勇”，高考也是某省某市的女状元，学的是理工科，进的是名牌大学，拿着全奖资助来美国。平时自以为并非一个没有独立思考能力的人，光怪陆离的人生百态也见识过不少了，还从来没有栽过什么大的跟头。比如说基督教吧，来美国的中国留学生多少都有接触，我的体验是相当近距离的：前男友是个台湾男孩，和我相交三年多，在那之前和之后都是一个虔诚的基督徒，唯有和我在一起的几年时间，他不仅没能把我拽进去，反倒被我拖了出来；最铁的“闺中死党”，大学四年的上铺，早已受洗入教，天天在为我祈祷，希望天父的荣光早日照耀我冥玩不灵的心，而我至今还冥玩着。那么我是怎么抵御住这么强大的诱惑的呢？那时候还没有读到过新语丝上的批基督教专辑，理论水平还相当低下，我所依凭的就是自己的独立思考和一些常识：《圣经》这本书，自从前男友郑重其事地送我以后，开了好几次的头，无论如何读不下去，而自己从小是个爱读书的人，那么凭什么让我相信一本我读不进去的书以及建立在这本书之上的一门宗教呢？还有人们耳熟能详的几个《圣经》故事，无一例外不是温情脉脉的面纱之下掩盖着的一片血腥和暴力，那么既使真有上帝，这也是个血腥残暴的上帝，我们凭什么要认他作父，匍匐在他的脚下？<br> <br>我以基督教为例，是想说明自己并非一个轻信盲从，毫无独立思考能力的人，而中医的欺骗性远不及基督教来得深刻，那怎么我，还有那么多的中国人，就会一头栽在中医上面，而且至死不悟呢？这个问题想不通，真是让人寝食难安。终于有一天，我七岁的儿子帮我想通了这个问题。那天在饭桌上，我坚持要他吃绿菜花，他操着一口洋腔洋调的中文跟我说：“妈咪，我吃这个菜上火，你说的上火的东西不能多吃。”儿子小小的狡黠逗得我和老公哈哈大笑，笑过之后我灵光一闪，对呀，中医就是这样将我套牢的呀！基督教是在我成年以后，有相对健全的理智以后才接触到的，所以我有足够的智慧来抵御它，而中医是当我还在襁褓之中，就点点滴滴润物无声地浸入我的血液里的，我如何能够逃脱得了？<br> <br>问题想通了，心情却并未变得轻松。我可以从此不再相信中医，也不会再向自己的两个孩子灌输“燥热上火”、“清热败火”之类中医似是而非的概念，而且牢记培养孩子们独立思考的能力是他们成长道路上最重要的一课。可是中国的孩子们呢？前一阵不是还有什么声势浩大的“中医万里行”之类的活动，不是还有高官出来高调宣称要让孩子们从小认识中医中药是中华文明的精华吗？若是现在有谁站出来喊一声“救救孩子！”，肯定是这“百年盛世”里的极不和谐之声，我也没打算要喊，也不知道该冲着谁喊，但是却实实在在地体会到了当年鲁迅先生发出这一声呐喊时那悲凉而无奈的心境。<br> <br>方舟子及他的同道们，任重而道远啊。<br><br>2008，1，1，凌晨<br><br>(XYS20080101)<br><img src ="http://blog.hjenglish.com/coolboy/aggbug/920259.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://blog.hjenglish.com/coolboy/" target="_blank">coolboy</a> 2008-01-02 04:58 <a href="http://blog.hjenglish.com/coolboy/archive/2008/01/02/517265.html#920259#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div><div align='right'><script type="text/javascript"><!--
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I made some comments to clarify the issue in the following link:<br><br> <a target="_new" href="http://www.astronomy.com.cn/bbs/thread-62027-1-11.html">http://www.astronomy.com.cn/bbs/thread-62027-1-11.html</a> <br><br>The following comments taken from the above link are worth reading and carefully digesting to those who are interested in astronomy theory or radiative transfer.<br><br>^^^^^^^^^^^^^^^^^^^^^^^^<br><br>If F(s) and G(s) are Fourier/Laplace transforms of f(t) and g(t), respectively, then the Fourier/Laplace transform of the convolution between f(t) and g(t) is the product of F(s) and G(s).<br><br>In most cases, only one side of the above identity has a (clear) physical significance. For example, the frequency-dependent coefficients of phenomenological conductivity and permeability define product relations, which carry a clear physical meaning. On the other hand, its counterpart that the electric polarization and magnetization of the electromagnetic waves will be related to the electric and magnetic fields through convolution integrals of Fourier transforms is not very clear/easy to understand.<br><br>The most interesting example about convolution (and product) in astronomy is the formation of line profiles. It is often said that the Voigt line profile is the convolution of the Lorentz line profile and the Doppler line profile whereas in fact its physical meaning has nothing to do with the concept of convolution!<br><br>^^^^^^^^^^^^^^^^^^^^^^^^<br><br>A correct and logical derivation of the Voigt profile<br>----------------------------------------------------------<br><br>I made the following statements in the above discussions:<br> <br>“The most interesting example about convolution (and product) in astronomy is the formation of line profiles. It is often said that the Voigt line profile is the convolution of the Lorentz line profile and the Doppler line profile whereas in fact its physical meaning has nothing to do with the concept of convolution!”<br><br>I was trying to answer a common question like the following ones that I also encountered when I was learning this subject:<br><br>比邻星yue:“为什么是两个函数的卷积?”<br>快乐中微子:“我就问卷积是怎么得来的……为什么有卷积？”<br><br><br>My point is that there is no 卷积 involved in a correct and logical derivation of the Voigt profile. The final form of the Voigt profile happens to look like a 卷积 is solely by coincidence. The central idea of this problem is that the measured line profile represents a bulk/ensemble average of many atoms/molecules that have different wave forms and/or line profiles. This is very similar to the situation that many people have different heights and weights. You average their heights to get their average height. You take an ensemble mean of people’s weights to get the mean weight.<br><br><br>A correct and logical derivation is as follows:<br><br><br>(-4) Emission or absorption has a finite lifetime (due to either or both natural broadening or/and pressure broadening) so you do not have an infinitely long sinusoidal wave in time that will give you a sharp Dirac-delta function line profile in frequency.<br><br>(-3) The line profile you measured is an average of many atoms/molecules that have different lengths of finite lifetimes.<br><br>(-2) Different lifetimes of those atoms/molecules satisfy a Poisson distribution of P~exp(-t/tau).<br><br>(-1) You take the bulk average of the individual line profiles of different atoms/molecules by integrating over the Poisson distribution function to get the measured Lorentz line profile (or average over “dvdt相空间”).<br><br>(0) The Lorentz line profile can be expressed as a simple closed form so nobody has ever talked about convolution when taking the average over the Poisson distribution function to get the Lorentz line profile.<br><br>(1) Finite lifetime gives you a Lorentz line profile (due to either or both natural broadening or/and pressure broadening) with a half-width alpha_L<br><br>(2) The line profile approaches a Dirac-delta function as alpha_L -- &gt; 0<br><br>(3) The random/thermal motion gives you a frequency shift in Lorentz profiles for different atoms/molecules related to the Boltzmann distribution function of velocity.<br><br>(4) You take the bulk average by integrating over the velocity distribution function to get the measured line profile (or average over “dvdVr相空间”).<br><br>(4.5) The bulk/ensemble average over the velocity distribution function here is similar to taking the bulk/ensemble average over the Poisson distribution before: the measured line profile represents all those atoms/molecules that have different lifetimes AND different velocities, i.e., people have different heights AND different weights.<br><br>(5) There is a nonlinear relationship between velocity v and the Doppler shifted frequency. However, if v &lt;&lt; c, the relationship becomes linear.<br><br>(6) Changing integral variable from dVr to d[nu] gives you the Voigt line profile.<br><br>(7) Letting alpha_L--&gt;0 in the Voigt line profile and using the Dirac-delta function relation give you the Doppler line profile.<br><br>(8) You now check again and find that the Voigt line profile happens to be the convolution between Lorentz profile and Doppler profile.<br><br>(9) It also happens that there is no closed expression for the Voigt line profile so people have always been taking that expression as a physical convolution between two line profiles.<br><br>Note: You do not have such a convolution relation if v&lt;&lt;c does not hold. Doppler line profile has been derived after you get the Voigt line profile. In other words, you really cannot have a pure Doppler line profile in theory.<br><img src ="http://blog.hjenglish.com/coolboy/aggbug/714014.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://blog.hjenglish.com/coolboy/" target="_blank">coolboy</a> 2007-05-14 07:02 <a href="http://blog.hjenglish.com/coolboy/archive/2007/05/14/83783.html#714014#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div><div align='right'><script type="text/javascript"><!--
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</script></div>]]></description></item><item><title>re: A story about Harvard University library</title><link>http://blog.hjenglish.com/coolboy/archive/2007/05/05/77831.html#705229</link><dc:creator>coolboy</dc:creator><author>coolboy</author><pubDate>Fri, 04 May 2007 16:29:00 GMT</pubDate><guid>http://blog.hjenglish.com/coolboy/archive/2007/05/05/77831.html#705229</guid><description><![CDATA[<br>杜克大学富科商学院重大学生舞弊案件<br><br>Eric<br><br>杜克大学富科(FUQUA)商学院四月底宣布结束长达两个月的对三十八个一年级MBA学生舞弊行为的调查。调查结果：九名学生将面临被开除的厄运，十五名学生被停学一年，十名学生这门课必修课记为零分，四名无罪。这是杜克富科商学院建校三十余年以来最大的丑闻，也是北美商学院十年来绝无仅有的重大学生舞弊案件。<br><br>鉴于美国联邦隐私权保护条例，学校不会公布学生的种族和名单。但据知情人士透露，有十三名中国学生将受到严厉处分：八名开除，五名停学。另外还有将近十名被警告加重修这门功课。事件起源于三月初的一门决策模型必修课程。学生可以把考试带回家去做，但整个案例必须独自完成。学生最后还得把他们的EXCEL 模型通过网上提交。在评卷过程中老师发现不少答案有惊人的相似之处。初步调查没有结果：虽然证据明显，却没有人承认有任何的抄袭行为。中国学生的抵赖行为迫使教授把平时的作业也调出来，发现了更多的作弊证据。<br><br>在确凿的证据和教授的严厉讯问下，学生们终于被迫承认是聚集在一起互相抄袭或合作。调查委员会对学生进行了为期将近一个月的质询，最终于四月中旬决定对二十多名中国学生提出正式起诉。四月二十八号上午十一点，学校官方通过电子邮件向所有商学院学生宣布了庭审结果。富科商学院正副院长在宣布当天下午就此事举行内部新闻发布会回答学生问题。一时间，愤怒，失望，和谩骂充斥了整个校园。<br><br>大多数美国和国际学生都觉得学校给予的处分太轻。事值2007届学生即将毕业之际，喜庆的校园登时蒙上了一层浓厚的阴霭。有的学生要求公布案情细节，希望明白为什么有人的处分仅仅是把功课降为零分而已。为了显示学校对学术道德的重视，校方主动新闻媒体发布此事。CNN教育版，华尔街日报，和商务周刊在近几天都对这次丑闻有所报导。对于所有的中国学生来说，这样的结果却是大大的出乎意料。毕竟，大多数富科的中国学生没有过任何的在美国学习和工作过的经验，以为这件事情学校会轻描淡写地掩盖过去。处分结果下来后，十几个受处分的学生跑到院长办公厅门口去静坐示威。有一位受处分的中国学生在宣布会还散发了这样的传单：停学？开除？我们花钱要的是教育，而不是惩罚！学生们还积极寻找校友，舆论和律师来给学校施加压力，以期能得到轻点的处罚。中国学生诸如此类的不理智行为引起了校园社区的巨大反感。除了律师为赚取佣金答应帮忙以外，舆论导向对中国颇为不利。学校数年来第一次调用了数名警察在学生活动中心进行巡逻以防不测。<br><br>富科商学院自从在2001年以最年轻的知名商学院身份晋身商务周刊全美排名第五，创造了北美商学教育的一大奇迹以后，最近几年排名低迷不振，在最近的一次US NEWS 排名中，仅被排为第十二名。这次事件对于这年轻的学院来说或是一起重大的打击，或是重塑形象的一个契机。<br><br>富科商学院集体舞弊事件受处分的中国学生列表<br>二十二个中国学生被调查，八个开除，五个停学，六个被罚重修，一个无罪，两个未详。<br>Yu Cheng 开除<br>Yu (Harry) Huang 开除<br>Hua (Dianthe) Jin 开除<br>Shen Lu 开除 <br>Jun (Kevin) Qin 开除<br>Degang (Kendall) Shen 开除<br>Dan (Chelsea) Wei 开除<br>Hua (Stella) Zhang 开除<br>Hanlan (Angela) Fu 停学一年<br>Wei (Vealla) Sun 停学一年<br>Jingxiu (Kane) Zhang 停学一年<br>Lin Zheng 停学一年 <br>Pingfan (Elle) Zhou 停学一年<br>Di Wu 重修课程<br>Qian (Harry) Wang 重修课程<br>Chunning (Christine) Yang 重修课程<br>Yong Yang 重修课程<br>Jizhi (Justin) Yao 重修课程<br>Hongmiao (Hugo) Zhao 重修课程<br><br>按：富科商学院2008届总共有二十八名中国学生，占所有一年级学生人数的百分之七。 <br><br>(XYS20070504)<br><br>***新语丝(www.xys.org)(xys.dxiong.com)(xys.3322.org)(xys.xlogit.com)***<br><img src ="http://blog.hjenglish.com/coolboy/aggbug/705229.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://blog.hjenglish.com/coolboy/" target="_blank">coolboy</a> 2007-05-05 00:29 <a href="http://blog.hjenglish.com/coolboy/archive/2007/05/05/77831.html#705229#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div><div align='right'><script type="text/javascript"><!--
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