g****t
发帖数: 31659 | 1 来自主题: Programming版 - 数值计算 最简单的就是一个信号发生器。
输出是3个频率a,b,c的指数函数叠加一些噪声。如果一个a比b,c两个small 1000倍。
如何根据输出估计a,b,c
你可以试验下
y = A*exp（-iat)+B*exp(-ibt)+C*exp(-ict) + noise
Given y， find best estimation of a |
|
g****m
发帖数: 2 | 2 Call for Papers
Multi-aspect Analysis of Biological Pathways Using High-throughput Data
Sources
A Workshop of 2007 IEEE International Conference on Bioinformatics and
Biomedicine
(IEEE BIBM 2007, co-located with IEEE/WCI/ACM WI-IAT 07 and IEEE GrC 07)
http://www.cis.drexel.edu/faculty/thu/bibm/index.php.htm
San Jose, CA, USA Nov 2-4, 2007
Key Dates
August 10, 2007: Due date for full workshop papers submission (at least two
reviews for each paper)
September 10, 2007: Notification of paper accepta |
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s*****u
发帖数: 164 | 3 这个积分可以把 exp(iat) 做级数展开之后逐项积分。
如果是有限区间的积分，每项都会包含一个 incomplete
gamma 函数，最后无法把无穷级数求和得到一个简单
的形式。
另外，最简单的，高斯积分，无穷区间积分存在闭合形式的
结果，但是有限区间的积分就没有。 |
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a*e
发帖数: 431 | 4 你这个做的是IAT吧，不懂，不过[是/否]可以作两个而不是一个变量来处理吧，
录入容易一点? 无经验的说。。
要不以后可以试试把所有的数据直接用计算机记录好，免掉人工输入的过程，
现在很多人都是在网上作的说，要不就找几个RA帮忙搞，呵呵。 |
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c**t
发帖数: 316 | 5 【自律训练疗法：训练大脑，对抗压力】
我们的自我治愈潜能很大，只是需要知道如何激发这一潜能并加以利用。
每天早晨和自己重复着这样的对话内容可能显得有些奇怪，比如“我的手脚很重。我的
手脚很暖和。我的心平静如常。” 但进行自律训练或自我暗示训练的人们恰恰就是通
过不断重复这些话语以减轻压力或提高专注程度。
15 分钟后，抑或更短的时间，人体的不同部分会做出响应，并引导肌肉（如颈部、手
臂和腿部的肌肉），根据预定的程式进行放松或做活氧运动。 专家认为，如果一个人
已经若干年都坚持有规律地练习，那么通过集中注意力并对自己说“我的手脚很重”，
他/她就可以在数秒钟内进入深度放松状态。
卡嘉·恩格斯科钦 (Katja Engelskirchen) 称，如果你正在寻求对抗心理压力的方法
，摆脱不安的感觉，或是希望更好的掌控繁忙的日程，那么自律训练可能正适合你。恩
格斯科钦现在在法兰克福附近开课传授自律训练和预防压力技能。
自律训练最早是在 20 世纪 30 年代由研究临床催眠和远东冥想技巧的德国精神病学家
约翰内斯·海因里... 阅读全帖 |
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m*********k
发帖数: 10521 | 6 [FleaMarket] eqi
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m*********k
发帖数: 10521 | 7 [FleaMarket] eqi
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m*********k
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m*********k
发帖数: 10521 | 9 [Running]
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m*********k
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m*********k
发帖数: 10521 | 11 [NextGeneration]
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m*********k
发帖数: 10521 | 12 [Immigration]
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m*********k
发帖数: 10521 | 13 [Stock] kbrhouston Nov 22 ● 村长要吃火鸡，没钱买，我来发包子
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m*********k
发帖数: 10521 | 14 [ebiz] domo324
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m*********k
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m*********k
发帖数: 10521 | 16 [Missouri]
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t******n
发帖数: 2939 | 17 版面活动无需手续费
活动主题：3月8日国际妇女节活动
标题：女ID请进
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m*********k
发帖数: 10521 | 18 "[WaterWorld]thirdman Mar 7. ● 女ID请进"
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m*********k
发帖数: 10521 | 19 "[ebiz]
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m*********k
发帖数: 10521 | 20 [SanFrancisco] DOD0 Feb 10 @● [bssd] 三藩版祝大家虫它年快乐新
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s*******y
发帖数: 46535 | 21 有關種牙的花費，兩顆牙，零零總總算下來大概得10K
我的oral surgeon給了個estimation，雖然知道種牙很貴，還是有些超出預料，請給點
參考意見，或者推薦Virginia附近的oral surgeon
Stage 1: sinus graft to the upper left jaw #13, #14 area
surgical fee: $1835
IV anesthesia: $390
Stage 2: placement of two implants and temporary healing abutments in the up
per jaw #13, #14 areas
surgical fee: $4200
anesthesia: $0 - $390
另外沒有包括在裡面的有：
1. a surgical guide (stent) for use during the implant placement, fees assoc
iated with this will be billed by dentist
2. 拔牙之後放裡面的graft，這一項... 阅读全帖 |
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e********y
发帖数: 350 | 22 如果你是自己调那要小心呀~ 直接提升涡轮增压有几个方面蛮危险的。一旦离开了原来
的compressor efficiency，涡轮增压的时候压缩空气的温度会几何倍的增加。那原来
的ic就可能不能很好的冷却这个温度。其次，增压越高，ic效率就越低。例如你要
10psi at manifold，那compressor可能其实运行在12psi，2psi被ic拿走了。但如果你
要15psi at manifold，那compressor可能需要输出18psi才能维持。
iat温度高会大大增加detonation的几率（毁引擎的东西），而且你光改boost不调整
fueling的话，可能会很lean，更加增加detonation的几率。
而且，提升增压后，exhaust temp也会飙涨。如果不升级整套turbo 后的exhaust的话
，超高的exhaust temp会长期很伤车。
所以一般推荐提升stock turbo的压力，最好换ic和turbo back exhaust系统。 |
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v******d
发帖数: 227 | 23 我说的效率降低就是同样的boost，90%效率的时候空气可能是40c， 50%效率的时候，
空气可能就是60c. ic效率其实不是特别高，而且还会heat soak，这也是为啥
compressor效率决定了peak boost.很多时间你虽然可以再提升2psi，但效率降低所导
致的iat提升会让引擎本身的timing减少，从而减少输出，最后还不如不提升那2psi来
的强。 |
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w*******y
发帖数: 60932 | 24 $59 for a 2 Night Niagara Falls Getaway (Hotel) for 2 People, Including FREE
Continental Breakfast and Parking at the Howard Johnson Express Inn Niagara
Falls, ON (up to $150 Value)
Click here:
http://www.dealfind.com/?a=d62cfa547b35
to get the Deal.
NOTE: Change the city (iat the top, in the middle) to Canada->London to see
this Deal!
Includes Breakfast & Parking
Free Hi-Speed Wireless Internet
Spacious, Well Maintained Rooms
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Heated Outdoor Pool
Address of hotel:... 阅读全帖 |
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S******t
发帖数: 8388 | 25 (A couple of these haven't started trading yet and a few
just started trading and therefore don't have much volume yet,
but special mention should be made for the new 300%
Russell ETFs which will make great trading vehicles once
volume picks up.) **trader168-David Liu**
US Indexes
DIA Dow30
DDM Dow30 2x long
DOG Dow30 short
DXD Dow30 2x short
ONEQ Nasdaq
QQQQ Nasdaq100
QLD Nasdaq100 2x long
PSQ Nasdaq100 short
QID Nasdaq100 2x short
OE... 阅读全帖 |
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y***q
发帖数: 4147 | 26 【 以下文字转载自 Stockcafeteria 俱乐部 】
发信人: ShortCut (总想偷懒), 信区: Stockcafeteria
标 题: Re: 底部探明了没有？？？
发信站: BBS 未名空间站 (Thu Jun 10 11:40:46 2010, 美东)
过去收藏的:
US Indexes
DIA Dow30
DDM Dow30 2x long
DOG Dow30 short
DXD Dow30 2x short
ONEQ Nasdaq
QQQQ Nasdaq100
QLD Nasdaq100 2x long
PSQ Nasdaq100 short
QID Nasdaq100 2x short
OEF SP100
IOO SP100 Global
SPY SP500
SSO SP500 2x long
SH SP500 short
SDS SP500 2x short
IVV ... 阅读全帖 |
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N***i
发帖数: 2063 | 27 Best-Rated Financial Stocks Updated June 23, 2010
http://www.nasd100.com/2010/06/bestrated-financial-stocks-updated-june-23-2010.html
Ranking | Company (Ticker) | Average Rating Value | Average Rating
1 IRSA Inversiones Representaciones (ADR) (NYSE:IRS) 1.00 Strong Buy
2 Primus Guaranty, Ltd. (NYSE:PRS) 1.00 Strong Buy
3 China Life Insurance Company Ltd. (ADR) (NYSE:LFC) 1.00 Strong Buy
4 National Bank of Greece (ADR) (NYSE:NBG) 1.00 Strong Buy
5 HDFC Bank Limited (ADR) (NYSE:HDB) 1.00 ... 阅读全帖 |
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