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标题:[转载]China leads in Race for Clean Energy |
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浏览:418 评论:1 |
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A front page article in today's New York Times (1/31/10) carries the above title http://www.nytimes.com/2010/01/31/business/energy-environment/31renew.html?sq=China leads in energy&st=cse&scp=1&pagewanted=all It is gratifying to learn that despite current ills of academic scholarship in Science and Technolgy, China can do somethings in S&T right (In fact it will be instructive to discussd the reasons why in one case things are corrupt and getting worse or no better and in the other case things are flourishing)
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本文引用地址:http://kexue.com.cn/m/user_content.aspx?id=291734 |
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标题:On Finding A Professional Home |
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浏览:978 评论:8 |
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For every young scholar in academia and research, one decision you have to make after graduation and settled in your first job is to find a professional home. By this I mean one chooses a professional society where you intend to publish you future research papers and volunteer your services such as reviewing papers, participate in meetings, etc. Because of the cross disciplinary nature of many of scientific and engineering endeavors, there is often a plethora of choices of professional societies and groups. Take one example, the subject of “automation”. At least four IEEE Societies claim expertise, jurisdiction, and sponsor meetings on this subject. The temptation for young scholars is to try to join all four societies and participate in their activities. My considered advice is “DON’T DO THAT”. You cannot have one foot in each of two boats a
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本文引用地址:http://kexue.com.cn/m/user_content.aspx?id=288730 |
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标题:In praise of imperfections |
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浏览:2389 评论:6 |
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Everyone has heard of the 80/20 rule, i.e., the first 80% of the performance of a system only require 20% of the total effort; the last 20% will need the additional 80% of the effort. Or put is colloquially, “Best” is the enemy of the “good enough”. This is a simple statement of the complex task of general cost-benefit analysis that is often at the heart of every system engineering problem. It is also the core of my own research effort on Ordinal Optimization for the past 17 years http://www.sciencenet.cn/m/user_content.aspx?id=2501
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本文引用地址:http://kexue.com.cn/m/user_content.aspx?id=286377 |
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标题:NYTimes view about returning sea turles. |
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浏览:1365 评论:3 |
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This morning's New York Times (Jan. 6, 2010) has a rather balanced and factual article about China's effort in recruiting ethnic Chinese scientists to work in China. Amid the current hoopla on ScienceNet concerning "returning sea turtles", I thought it might be worthwhile to read this article which is reproduced below: (By the way, I just learned that a partial translation of this article has been provided by Ms Cindy Hao at http://www.sciencenet.cn/m/user_content.aspx?id=285049)
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本文引用地址:http://kexue.com.cn/m/user_content.aspx?id=285092 |
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标题:On Attending Conferences |
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浏览:7985 评论:15 |
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If you are in academia and/or doing research, attending professional conferences is an unavoidable part of life (if you are in industry, you need to attend trade shows which is not under discussion here). I wish to discuss three stages of your professional life and the role conferences play in them. In each profession, there always exists one annual conference which is considered to be THE conference of the year which everyone tries to attend. It is a big affair with a big budget, several plenary presentations, and many parallel technical sessions lasting over several days.
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本文引用地址:http://kexue.com.cn/m/user_content.aspx?id=281906 |
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标题:1959-2009 Half Century of Research and Education and the 48th IEEE Conference on Decision and Control, Shanghai, China (I am a lucky guy!) |
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浏览:1937 评论:6 |
The first paper of my ph.d thesis was written and submitted in 1959 (see http://www.sciencenet.cn/m/user_content.aspx?id=250198 ). My most recent paper was published July 2009 ( Chen Xi , Y.C. Ho, and Bai Hongxing, Complete Coverage and Point Coverage in Randomly Distributed Sensor Networks, AUTOMATICA 2009); the most recent technical book in 2007 (Y.C. Ho, Q.C. Zhao, and Q.S. Jia. Ordinal Optimization – Soft Optimization for Hard Problems Springer, 2007); and the popular science book , (Blog Articles on Science and Life. Tsinghua University Press, Nov. 2009) one month ago. Thus, I can honestly claim that I have actively engaged in R&E for the past 50 years.
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本文引用地址:http://kexue.com.cn/m/user_content.aspx?id=279300 |
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标题:American Youth on US College life (7) |
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浏览:1784 评论:4 |
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This is seventh in a series of articles on American college life by my grandson Daniel Kim Comment from a reader: “Thanks a lot for the sharing. I think one big difference between the US students and the Chinese students is the opinion toward sex and girlfriend/boyfriend relationship. I am not sure whther it is proper to talk about this topic here. But I do think that this is a topic many people are interested in.”
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本文引用地址:http://kexue.com.cn/m/user_content.aspx?id=278210 |
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标题:Q&A with Tsinghua Students (III) -On Finding An Ideal Partner For Life |
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浏览:1983 评论:9 |
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Both the visit count for my blog A Valentine Day Tribiute to My Wife 情人節献给我的终身伴侣http://www.sciencenet.cn/m/user_content.aspx?id=15663 and student questions during my Tsinghua Q&A sessions http://www.sciencenet.cn/m/user_content.aspx?id=276893 and http://www.sciencenet.cn/m/user_content.aspx?id=276894 indicated that finding a life partner is foremost on young scholars' mind. This is of course stating the obvious. It is equally obvious that this is a task of stochastic optimization that is full of perils and uncertainties in the modern age (to use an analog for the decision and control field). Both you and your potential partner do not have enough life experience to make optimal decisions which is the reason for arranged marriages by elder family members in olden times. But even if you were lucky to find THE optimal solution on expected or average value basis for this
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本文引用地址:http://kexue.com.cn/m/user_content.aspx?id=276944 |
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标题: Question and Answer Sessions with Tsinghua Students (II) |
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浏览:1665 评论:1 |
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This is the second of this series of student written articles (see the first Question and Answer Sessions with Tsinghua Students, http://www.sciencenet.cn/m/user_content.aspx?id=276893 for introductions) Fifth Article 与何老师交流感受与总结 从研究生申请到入学,常常听到老师和师兄们提及何老师的教导。但这次是我第一次真正见到何老师。经历了长时间的飞行,尚未得到充分的休息调整,何老师就和我们进行了交流。何老师一直给我们亲切、睿智、敏捷的感觉,说话铿锵有力。通过阅读何老师的博文,并且经过短短的两次交流,自己有了很多收获。在与何老师的提问与回答中,不仅解决了许多自己困惑已久的问题,而且面对面的交流,给我许多无法用语言表达的财富。这里,我就简单说说在这两次交流中自己体会较深的几点。
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本文引用地址:http://kexue.com.cn/m/user_content.aspx?id=276894 |
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