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X******2
发帖数: 5859 | 3 http://blogs.ethz.ch/kowalski/2013/05/21/bounded-gaps-between-p
And so it came to pass, that an almost millenial quest found a safe resting
place…
Like all analytic number theorists, I’ve been amazed to learn that Yitang
Zhang has proved that there exist infinitely many pairs of prime numbers ell
So, how did he do it?
Well, since the paper just became available, I don’t have anything
intelligent to say yet on the new ideas that he introduced (but ... 阅读全帖 |
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o****g
发帖数: 314 | 4 From: Dirk Helbing
Date: January 13, 2009 4:16:26 AM MST
Subject: Open PhD and/or postdoc positions at ETH Zurich
Dear friends,
I am looking for qualified PhD and postdoc candidates (see below) and would
be very grateful, if you could forward this information to potentially
interested junior scientists, who would be able to meet the standards of ETH
Zurich / meet your own expecations. Maybe, one of your staff members would
like to collect some international experience? This wo |
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F**D
发帖数: 6472 | 5 看了那5个人的简历就知道，2个ETHZ的，2个Uof manchester的，1个u of sydney的，呵
呵。 |
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A*g
发帖数: 9 | 6 这个方向属于ee，不是物理。
中红外的QCL是90年代J.Faist在Bell跟着Capasso做postdoc时先做出来的.
Terahertz QCL是2001年剑桥一个组作出来的。国内做这个的我知道的就
上海微系统所和半导体所。
现在做得最好的几个组有，Capasso在Harvard的组，J.Faist在ETHZ的组，
还有Capasso一堆学生博后在欧洲做。THz QCL MIT的胡青做的非常好。
如果你能去这些组的话，感觉很不错。
产业方面，Faist有个公司在卖QCL，其他的不太清楚。 |
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o****u
发帖数: 1299 | 7 【 以下文字转载自 Faculty 讨论区 】
发信人: owlliu (小草莓), 信区: Faculty
标 题: ZZ: PhD/postdoc positions at ETH Zurich, Switzerland
发信站: BBS 未名空间站 (Wed Oct 20 12:13:23 2010, 美东)
One freind of mine who just became a Assistant Professor at ETH (Swiss
Federal Institute of Technology) Zurich is looking for PhD
students/post-docs for his research group in the field of attosecond
science. He is very young (<30), very smart (the most intellegient
yound sciendtest I've ever met) and employees at ETH are very well
paid (~... 阅读全帖 |
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a***f
发帖数: 150 | 8 阿秒激光其实就是相干X线脉冲啦。电子被强激光电离，在激光电场中又被加速获得额
外的能量，最后又跃迁回基态，将能量释放出来。如果使用多周期的激光就会得到多个
阿秒脉冲，其原理是选取多个频段的高次谐波，如果他们之间相位差恒定，那么就可以
相干叠加产生短脉冲激光，和锁模激光很像。如果使用few-cycle的激光，就可能产生
单个阿秒脉冲，可能，如果要确定呢，就需要稳定激光电场与包络的相位（carrier-
envelop phase），这里就要使用到激光频率梳技术(Theodor Hansch,2005 Nobel
prize in physics,大牛，号称已经错过了两个N奖。他的学生Wieman由BEC在01年得奖
。高次谐波相干叠加产生阿秒脉冲的想法1993年由他和另一个匈牙利人一起提出。)。
但是few-cycle的激光器不是很多实验室都有，所以很多人也研究怎么用多周期激光来
产生单个阿秒脉冲，比如Kansas的常。
意大利的Nisoli是第一个用气体来扩展光谱从而产生few-cycle激光脉冲的，现在MPQ的
Krausz最早在TU Wien（和他在匈牙利的老乡）搞出了chirpe... 阅读全帖 |
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d*********k
发帖数: 1239 | 12 > biocLite("sma")
Using R version 2.9.2, biocinstall version 2.4.13.
Installing Bioconductor version 2.4 packages:
[1] "sma"
Please wait...
Warning message:
In getDependencies(pkgs, dependencies, available, lib) :
package ‘sma’ is not available
我按照你给的链接的方法安装，可是出现了以上的情况~
我还搜到一个网页
https://stat.ethz.ch/pipermail/bioconductor/2010-November/036214.html
这是怎么回事啊？ |
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w***a
发帖数: 111 | 23 http://www.vpf.ethz.ch/services/ETH_Fellows/
In short
The ETH Zurich Postdoctoral Fellowship Program supports incoming fellowships
for postdoctoral researchers
at the ETH Zurich. The program is intended to foster high-potential, young
researchers who have already
demonstrated excellence in terms of internationally competitive achievements
in the early stages of their
professional careers.
Applications have to be made jointly by the candidate and their host who
must be an ETH Zurich Professor and... 阅读全帖 |
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m*******r
发帖数: 7495 | 26 码头不远处，经过一沿街的parking lot，扫到一线BMW、奔驰、奥迪。看来要在
这里特立独行，惟有上老爷车了。
在瑞士买个165 CHF的全年半价卡，乘火车汽车轮船就能享受半价优惠。Zurich
lake的观光渡轮半价票很便宜，成人一趟4 CHF。6岁以下小孩免费。一上船，就看
到一群衣着体面的老人，在餐厅品红酒聚会聊天。这真是养老、度假的天堂。
下了船，ETHZ和Univ. of Zurich，就在码头不远处的山头上。
(待续) |
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m*******r
发帖数: 7495 | 27 我背景match的高水平lab都被我申过了 呵呵
只能找普通的了
真羡慕你这种能自由满世界飞的，我超过家门1小时的都不考虑了。。。
瑞士cancer整体上一般般，我也想转cancer，不过没希望了。
EPFL Doug Hananhan大牛，不过据说他run lab很多问题
明日之星Etienne Meylan，lab建立不久，还只有学生
ETHZ的Wilhelm Krek，做代谢的，也涉及cancer
面了其中一个lab，不过因为老板需要的方向我面试没有表现出特别感兴趣，同期
还有个瑞士人竞争，就被拒了。
我在美国有面试的都有offer，这边2面试都没有拿到offer。挺挫的。。。
祝你好运。 |
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发帖数: 1 | 30 cox.zph is used to test the ph assumption, i.e., if the effect of a
covariate changes along with time. The theory behind this test is explained
here:
http://psfaculty.ucdavis.edu/bsjjones/coxslides2.pdf
If the pvalue from cox.zph is too small to assume the ph assumption holds,
you can use stratified cox ph model, see https://stat.ethz.ch/education/
semesters/ss2011/seminar/contents/presentation_5.pdf
To select the best model, use Likelihood ratio test.
But in reality the problem is more complex.... 阅读全帖 |
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t*******o
发帖数: 1464 | 31 【 以下文字转载自 Stock 讨论区 】
发信人: badcompany (哥玩的不是股票，是心跳！), 信区: Stock
标 题: 我推荐大家都读读这本书
发信站: BBS 未名空间站 (Tue May 18 19:17:11 2010, 美东)
http://www.amazon.com/Why-Stock-Markets-Crash-
Financial/dp/0691118507/ref=sr_1_1?ie=UTF8&s=books&qid=1274224166&sr=8-1
Why Stock Markets Crash: Critical Events in Complex Financial System
对于理工科专业的人而言应该不难。
作者Sornette，原来是UCLA研究地震的专家，过去十几年用非均衡复杂
系统的原理预测投机泡沫崩盘的时间，我跟踪了他的研究有好几年，认为
还是很成功的。包括07年的石油泡沫见顶，09年8月的中国股市见顶，他
都能在十几天的范围内锁定。
这是他的网页
http://www.er.ethz.ch/
如果你有比较强的数值计算能力，不... 阅读全帖 |
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b********y
发帖数: 5829 | 32 这儿有他以前的预测记录：
http://www.er.ethz.ch/fco/index
CHINESE EQUITY (10 July 2009)
Amid the current financial crisis, there has been one equity index beating
all others: the Shanghai Composite. Our analysis of this main Chinese equity
index shows clear signatures of a bubble build up and we go on to predict
its most likely crash date: July 17-27, 2009 (20%/80% quantile confidence
interval). See full analysis and results in this paper.
CDS (19 February 2009)
Our analysis has been performed on data kindly... 阅读全帖 |
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