B******y
发帖数: 2255 | 1 高智商同学别恼羞成怒啊，出来咬人牙要练硬点，你这练了九年的小牙经不起咯碜哪，
呵呵
这不过是翻译的问题，希伯来文用的是שָׁמָ֑יִם, 就是Heaven或sky。这和创1：1当然不
是一回事，这是地球上大气水汽所成的‘天’，不是指众星宿/暗物质/更高维度所
存在的宇宙/诸天。此天是六天所造，创1：1的诸天是远在六天之前就造了。
出埃及21：11所指的天/地，不过是六天里从深水淹没中恢复的地，和第二日所造的天。
也给你找几个版本参考下：
创1：8：
English Standard Version (©2001)
And God called the expanse Heaven. And there was evening and there was
morning, the second day.
New American Standard Bible (©1995)
God called the expanse heaven. And there wa... 阅读全帖 |
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m****r
发帖数: 1904 | 2 “日”在圣经里有很多解释，这里不是24小时的意思。
上帝对亚当说吃禁果的后果时提到吃禁果当天就会死，但是亚当活了900多岁。
彼得后书3：8“但是，亲爱的弟兄，有一件事你们不可忽视，就是在耶和华看来，一日
如千年，千年如一日”
“日”在创世纪应该解释为千年最恰当。
另外日月在第四“日”之前已经存在了，只不过第四“日”放到了现在的位置。
--------------------------------------------------------------------
The Bible does not clearly define day and night or their divisions, such as
“evening, morning, and noonday” (Ps.55:18), the watches of the night (Ex14
:24; Judg7:19), midnight or half the night(Ex11:4;12:29), and the notion of
“hour” is not mentioned at all. The... 阅读全帖 |
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b****r
发帖数: 17995 | 3 问题是肿瘤里一定就是Stem cell (slow cycling)--> transit : amplifying cells (
fast cycling progenitors) 这样一种模式吗。为什么不可以是这么一种模式，类似于
在体外培养耐药菌：
培养皿上种了一个细菌后，它变成一群细菌，每个个体在以同样的速度突变和繁殖，外
来因素如抗叶酸药物磺胺进来后，绝大部分细菌死了，只有偶然突变出耐药性的细菌生
存下来，并且繁殖开来成为relapse的源泉，而且relapse的细胞对原有的化疗相对耐药。
现在所谓CSC而不是single clone expansion的主要证据，如果我理解正确，是数个
clone的expansion而不是细菌常见的单个clone expansion，但是我以为这个非常好理
解，因为化疗药物对肿瘤细胞的杀伤能力基本上是远远逊于抗生素对细菌的杀灭能力的
（因为化疗药物并没有办法真正区分肿瘤细胞和正常繁殖的细胞），所以实际上只是给
肿瘤细胞一个较长周期的外界压力，因而肿瘤细胞有机会在这么长一段时间里以多种不
同的方式进化出抗肿瘤的能力。类似于如果只是以较低浓度... 阅读全帖 |
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O******e
发帖数: 4845 | 4 我推荐大家都读一下这篇文章：
http://www.pnas.org/content/111/16/5773.full
全文：
By Bruce Alberts, Marc W. Kirschner, Shirley Tilghman, and Harold Varmus
By many measures, the biological and medical sciences are in a golden age.
That fact, which we celebrate, makes it all the more difficult to
acknowledge that the current system contains systemic flaws that are
threatening its future. A central flaw is the long-held assumption that the
enterprise will constantly expand. As a result, there is now a severe
imbalan... 阅读全帖 |
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z******i
发帖数: 5114 | 5 Google:
Construction Joints: These are vertical or horizontal joints that are used
between two successive pours of concrete. Keys are used to increase the
shear resistance at the joint. If keys are not used, the surface of the
first pour is cleaned and roughened before the next placement of concrete.
Keys are almost always formed in the base to give the stem added sliding
resistance. The base is formed first, and the stem constructed afterwards.
Contraction Joints: These are vertical joints or g... 阅读全帖 |
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s******n
发帖数: 2279 | 6 Finding funds for medical residency slots seen as critical to address doctor
shortage
Published: Thursday, October 07, 2010, 9:57 AM
Updated: Thursday, October 07, 2010, 10:22 AM
Mark Sanchez | Business Review West Michigan
Peter Coggan, president and CEO of Grand Rapids Medical Education Partners.
Share 0 Comments As Michigan State University and other medical schools
significantly expand their capacity to train doctors, a bottleneck now
occurs in the system when it’s time for graduates to... 阅读全帖 |
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L*******t
发帖数: 2385 | 7 欧克，你是说除了SABR以外这个方法很难应用对吧。
我已经develope了一个方法，基本上所有大家喜欢的模型我都可以做expansion了。
而且不是small time expansion。如果我理解没错，Labordere的方法就是small time
expansion。。
看着本书其实就是想沙里淘金，一方面以前没接触过你说的几何和SDE的关系，觉得比
较有趣，还有一个就是想看看能不能contribute一些ideas。。
我现在能想到一些拓展Heat kernel expansion的方法，不过还需要试一试。
曾经想过，在博士研究的初级阶段，develop一些tools，等成熟以后就开始逐一去解那
些前人没有解决的问题，现在看来，光是develop tools就能把剩下的2年半全花掉。哎
。。。
一个月写一篇文章不难，但是要让导师满意，难上加难。。
.
problem |
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l**n
发帖数: 60 | 8 出诊给9元！医师拒收Medi-Cal
柏克莱市外科医师卡普兰（Dr. Jerold Kaplan）去年到一名脚伤病人家里看诊。由于
是加州医疗补助计画（Medi-Cal）的病人，所以他向Medi-Cal开了90元的诊疗费。他以
为自己的收费已经很便宜，但是Medi-Cal只给他8.96元。
去年，卡普兰还出诊看了一个小儿麻痺症病人，Medi-Cal也只付他13.44元，事后还向
他解释，因为他的收费单寄得太晚，所以将收费减半。也就是说，就算全额也只不过27
元。
加州正全力迎接联邦健保改革法的到来，并且将Medi-Cal扩大，纳入150万无健保人士
，另外还要吸收90万名「健康家庭计画」（Healthy Families ）的儿童，因为原来为
贫穷家庭儿童提供健保的「健康家庭」已经取消。
但是，Medi-Cal付给医师的医疗费太低，让专家担心到2014年新健保法推行时，根本没
有医师愿意为Medi-Cal病人看病。
卡普兰医师说：「Medi-Cal给医师的极低费用，已成为笑话，所以很多医师根本不感兴
趣。」
有770万病人的Medi-Cal是联邦医疗补助计画（Medicaid）的加州版... 阅读全帖 |
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p******u
发帖数: 14642 | 10 http://www.michaeltotten.com/archives/2009/07/a-conversation.php
....................
MJT: What’s China’s ultimate objective?
Kaplan: They’re putting a lot of money into their navy, more than their
army. Their ultimate objective is to project sea power, and not just in the
western Pacific which makes them a great regional power, but also in the
Indian Ocean which makes them a great power in total.
MJT: Do you get the sense that China is becoming more ambitious as it gets
more powerful?
Kaplan: I... 阅读全帖 |
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b*******9
发帖数: 644 | 11 RT
A compromise between earth-expansion and earth-contraction is the "theory of
thermal cycles" by Irish physicist John Joly. He assumed that heat flow
from radioactive decay inside the Earth surpasses the cooling of the Earth's
exterior. Together with British geologist Arthur Holmes, Joly proposed a
hypothesis in which the Earth loses its heat by cyclic periods of expansion.
In their hypothesis, expansion led to cracks and joints in the Earth's
interior, that could fill with magma. This was fol... 阅读全帖 |
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u***r
发帖数: 4825 | 12 http://www.bloomberg.com/news/2014-06-03/china-hsbc-manufacturi
By Bloomberg News Jun 3, 2014 3:40 AM CT
1 Comment Email Print
Facebook
Twitter
Google+
LinkedIn
Save
Related
China's Growth Remains `Uneven': CIMB's Song
China's Economy Seen Stabilizing, AMP's Oliver Says
A Chinese manufacturing gauge rose to a four-month high, signaling that the
economy is stabilizing even as job cuts and weakness in the property market
underscore pressure on the government to do more to s... 阅读全帖 |
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s*******2
发帖数: 2898 | 13 被蹲着撒尿廊庑走地鸡宣布关门的加拿大Target在加拿大纷纷开新店。
Target to Celebrate Grand Opening of Toronto Stockyards Store
March 13, 2014 – Target is pleased to announce the official grand opening
of its Toronto Stockyards store on March 14. The store, located in the
Stockyards shopping complex at St. Clair Avenue West and Weston Rd., is the
first from-the-ground-up build in Toronto, ...
Target to Continue Canadian Expansion in 2014
Target to Continue Canadian Expansion in 2014
January 29, 2014 – Target announced today t... 阅读全帖 |
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f******d
发帖数: 2394 | 14 心虚了？不是告诉你了么中崩元年是2013年。看中国经济就看房价。2013年是顶点。现
在是缓坡下降（听说过股市里的尖底圆顶么？）。一旦加速下降，就是主跌浪开始了，
学名叫中国金融危机。当然这会是美国的叫法，中国会把它叫做第二次金融危机（暗示
是美国引起的）。你可以很快验证看看这名词。如果你真好学的话，下面给你贴一篇教
学文章。其中的几个名人，Bill Gross，是太平洋基金的创始人之一，也是中投2011年
雇的朱长虹的老板的老板。George Soros，大名鼎鼎，就不多说了。Michael Diekmann
，世界最大的保险公司的老板。这篇文章里有很多信息，都和现在的金融市场和即将发
生的金融危机相关。
Fall of the Bond King: How Gross Lost Empire as Pimco Cracked
By Mary Childs - Dec 3, 2014
Bill Gross, the 70-year-old king of bonds, rushed through the offices of his
$2 trillion empire on a ... 阅读全帖 |
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发帖数: 1 | 15 12月 谈谈间谍问题
我一直感觉Reuters 有日本的间谍，他们会通过报道来传递针对华人屠杀的计划，和发
布不利于华人的报道，制造舆论。最重要他们后边的势力和犯罪集团有关。有必要好好
调查这个组织。
How top U.S. colleges hooked up with controversial Chinese companies
By Steve Stecklow and Alexandra Harney
Filed Dec. 2, 2016, noon GMT
New Oriental, China’s biggest private educator, has been accused of
academic fraud. Thanks to two enterprising Americans, it has also gained
access to leading U.S. college admissions officers.
SHANGHAI/SHELTER ISLAND, New York - Thomas Benson once ran a small... 阅读全帖 |
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b********n
发帖数: 38600 | 16 America’s Other Original Sin
We have never reckoned with the bloody U.S. takeover of the Philippines, our
https://www.theamericanconservative.com/articles/americas-other-original-sin
-philippines/
1898 US Political Cartoon: U.S. President William McKinley is shown holding
the Philippines, depicted as a savage child, as the world looks on. The
implied options for McKinley are to keep the Philippines, or give it back to
Spain, which the cartoon compares to throwing a child off a cliff. (
Uncred... 阅读全帖 |
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l****z
发帖数: 29846 | 17 http://20smoney.com/2010/10/25/all-eyes-on-fed-next-week/
25 October 2010
If you're new here, you may want to subscribe to my RSS feed. Or consider
checking out my online income reports or discussion forums. Thanks for
visiting!
The Federal Reserve looks to be announcing the plans for their next phase of
quantitative easing next week. The announcement will come on Wednesday,
November 3rd. Interestingly, this comes a day after the elections. Whether
or not the timing means anything is up for ... 阅读全帖 |
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l****z
发帖数: 29846 | 18 March 25, 2012 | Posted by Warner Todd Huston
Hosannas. Obama has finally cut some federal spending. But noting which
agency he shut down is sort of emblematic of his whole welfare/big
government-pushing presidency.
On Friday, the Department of Commerce announced that it would be shutting
down all five regional offices of the Minority Business Development Agency,
an agency that was created by Richard Nixon to help develop minority
businesses.
The administration claims that it will be saving ar... 阅读全帖 |
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l****z
发帖数: 29846 | 19 Biden Blames High Unemployment on ‘This God-Awful Recession We’ve
Inherited’
By Terence P. Jeffrey
March 29, 2012
(CNSNews.com) - At a campaign event in Iowa on Wednesday, Vice President Joe
Biden blamed the continuing high level of unemployment in the United States
on what he called “this God-awful recession we’ve inherited.”
According to the non-partisan National Bureau of Economic Research, the last
recession began in December 2007 and ended in June 2009—just five months
into President Barack... 阅读全帖 |
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y***l
发帖数: 1371 | 20 看了版上的几个关于Obamacare的帖子，觉得怎么他们理解的Obamacare和我以前知道的
不同，我就又查了下WIKI，列出Obamacare的几个主要条列以及我的理解，希望大家好
好辩论辩论，看看大家的理解有什么求同存异的地方。
The Patient Protection and Affordable Care Act (PPACA),[1] commonly called
Obamacare。 PPACA includes numerous provisions to take effect over several
years beginning in 2010.
1。Guaranteed issue will require policies to be issued regardless of any
medical condition, and partial community rating will require insurers to
offer the same premium to all applicants of the same age and ge... 阅读全帖 |
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c*****g
发帖数: 21627 | 21 By DAVID A. STOCKMAN
GREENWICH, Conn. -- The Dow Jones and Standard & Poor’s 500 indexes reached
record highs on Thursday, having completely erased the losses since the
stock market’s last peak, in 2007. But instead of cheering, we should be
very afraid.
David Stockman
Over the last 13 years, the stock market has twice crashed and touched off a
recession: American households lost $5 trillion in the 2000 dot-com bust
and more than $7 trillion in the 2007 housing crash. Sooner or later —
within a ... 阅读全帖 |
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l****z
发帖数: 29846 | 22 Déjà Vu Weather? No, It's a Recession!
New Seasonal Pattern?
Yesterday Fed Governor Stanley Fischer proclaimed U.S. Economy Should
Rebound After ‘Poor’ First Quarter.
“There’s definitely a rebound on the way already, and we’ll see at
what speed it proceeds,” Mr. Fischer said during an interview on CNBC. “
The first quarter was poor. That seems to be a new seasonal pattern. It’s
been that way for about four of the last five years.
Richmond Fed President Jeffrey Lacker said Wednesday that ... 阅读全帖 |
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g********2
发帖数: 6571 | 24 Why Voting for Donald Trump Is a Morally Good Choice
Wayne Grudem
Some of my Christian friends tell me they can’t in good conscience vote for
Donald Trump because, when faced with a choice between “the lesser of two
evils,” the morally right thing is to choose neither one. They recommend
voting for a third-party or write-in candidate.
As a professor who has taught Christian ethics for 39 years, I think their
analysis is incorrect. Now that Trump has won the GOP nomination, I think
voting for Tru... 阅读全帖 |
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g********2
发帖数: 6571 | 25 If You Don’t Like Either Candidate, Then Vote for Trump’s Policie
Wayne Grudem
|
Posted: Oct 19, 2016 12:14 AM
After I saw the shocking 2005 video with Trump talking about his sexual
aggression against women, I wrote, “There is no morally good presidential
candidate in this election.” I condemned Trump’s immoral conduct and said
I did not know how I would vote. I asked Townhall.com to remove my earlier
article, “Why Voting for Donald Trump Is a Morally Good Choice.” I urged
Trump to withdraw, ho... 阅读全帖 |
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s******8
发帖数: 4192 | 26 这个你肯定错了。这个新医保倒是鼓励没工作的看病。
因为这个新医保增加HSA，所以公司会越来越多提供high deductible plan，然后让员
工存HSA减税。
但是没有工作的人没有税可减，而且又是发钱买医保。他们不会买和HSA挂钩的医保，
他们会买dedutible,copay低的，可能coverage比较少的，只要发的钱够买就行。买完
当然经常去看病。很多医生医院对于低收入的copay,dedutible都是可以减免的。
最后反而会形成越来越多的没钱的经常去看病，有工作的只能扛着，因为希望HSA存退
休金。
这也是medicaid expansion取消的一个弊端。因为medicaid规定，减免copoay，
dedutible是fraud，医生是不能减免病人的copay和dedutible的。而私人保险法律没有
规定。
我不理解为什么要取消medicaid expansion。副总统pence在Indiana的修改过的
expansion就很好。他的方案几乎完全避免的没钱的人经常看病，而且也保证了需要看
病的人能够得到治疗。完全可以抄过来。不过GOP铁了心要走private... 阅读全帖 |
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H***u
发帖数: 1091 | 27 这里有堪萨斯和北卡的川粉么？
Forbes news:
More States To Expand Medicaid Now That Obamacare Remains Law
Kansas and North Carolina – are already working toward becoming the 32nd
and 33rd states to expand Medicaid
Before Trump was elected, Georgia, Idaho, Nebraska and South Dakota were
considering Medicaid expansion
More states will pursue expansion of Medicaid health benefits for poor
Americans under the Affordable Care Act after Republicans failed to repeal
and replace the law.
The American Health Care Act, a... 阅读全帖 |
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B*****l
发帖数: 1078 | 28 don't really understand, they are about the same.
2014 C class vs 2014 GLK price are about the same
E class vs ML, price are about the same, except E usually have 5-6000 more
discounts than ML
3 series vs X3 - about the same if not X3 a little more expansive similar
equipped
5 series vs X5 - X5 about 5k-10k more expansive
A4 vs Q5 - Q5 more expansive similar equipped |
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m**c
发帖数: 2103 | 29 近期福特召回太多，丰田不想被抢了头牌，于是...
在召回数量上一举胜出。
老色狼请乱入。
http://www.usatoday.com/story/money/cars/2015/05/13/nissan-toyo
Toyota, Nissan add 6.5 million cars to air bag recall
Toyota and Nissan launched massive global expansions Wednesday of their
recalls of potentially deadly vehicle air bags made by Japan's Takata.
The twin automakers' actions add more than 6.5 million vehicles to the
recalls that already encompassed millions of vehicles from multiple
automakers in the U.S. -- and around the world.
Toyota'... 阅读全帖 |
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W***n
发帖数: 11530 | 30
The best is for you to find out where the leak is coming from. At least rule
out some cheaper solutions. If you don't have blue smoke, you probably don'
t have a worn ring (that's expansive to replace). If it leaks from valve
cover gasket, it's relatively cheap to fix. But if it leaks from other
internal engine seals, that's expansive to fix (materials are cheap, but
labor very expansive).
The simplest & cheapest solution: you may try oil treatment stuff, get a
brand name one. If it improves th... 阅读全帖 |
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l**********3
发帖数: 2088 | 34 I don't know too much about beer. But the 度数 is usually depend on the beer
itself. You can have same style beers but they all have different 度数.
Usually, when there is "light" or "lite" behind it indicates it is low in 度
数 and also low in Carbs
All the beers you listed are styles meaning they are brewed in certain way
but it doesnt means they have the same hops, grains. So you can have same
company making 10 or 20 IPAs but they are all tasted differently.
The following are from my experiences on... 阅读全帖 |
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z****e
发帖数: 54598 | 35 嗯，大猩猩的意思我大概明白了
但是query term一般指的是用户输入的关键字
其他的叫做co term，这种一般有query expansion的说法
比如world cup 2014 final game
真正输入的query term估计只有world cup两个，剩下的是系统自动expand的
比如crimea，然后系统会自动补足其他的co term，比如conflict这些
这里面文章很大，不仅仅是删掉long tail就好了的
而且你只删超过50个字符长的搜索，这个估计也不会有太大优化的作用
因为很少有人会输入超过20个或者50个字符长度的搜索酱紫
当然删除低频词是必需的，要不然内存会增长得很快
但是我觉得存最近30分钟得数据
也是必需的
所以一读一写，这里就自然涉及读写冲突问题，这就是为什么会说到concurrent处理
而且query log本身是很重要的一个query expansion的来源
其实真正query expansion，比如crimea->crimea conflict
这种都是通过mining log得到的，所以有些低级和原始，为学术界所不齿
但是用... 阅读全帖 |
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发帖数: 1 | 36 小弟今年毕业，准备去amazon学习技术。最近拿到hr给的选组，比较迷茫，恳请老司机
给指指路。自己希望多学点技术（如果能不太累就更好了：）） hr给了Seattle和
austin的几个组：
TRMS
The Transaction Risk Management Services (TRMS) department is responsible
for making Amazon the safest and most trusted place to transact online. We
are advanced users of machine learning and data mining, incorporating the
latest research projects into our daily jobs. We are launching a new product
offering and are looking for skilled software engineers to be “founding”
members. This is a treme... 阅读全帖 |
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k****r
发帖数: 807 | 37 第二题简单吧，睡觉前写一下供参考：
public String getExpansion(String toExpand, int expansion) {
char[] chs = toExpand.toCharArray();
StringBuilder sb = new StringBuilder();
if (expansion > 0) {
for (char c : chs) {
for (int i = 0; i < expansion; i++) {
sb.append(c);
}
}
}
return sb.toString();
} |
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发帖数: 1 | 38 本来面的是aws elasticsearch，结果却跟我说没位置了，
HR说只剩下面这些可以选了，我是new graduate，所以主要考虑
1.适合new graduate融入，任务不要那么紧迫
2.能学到核心技术或者新技术，方便转到aws或者data science，machine learning
3.组内culture和谐，破事不要太多
求各位大神给点建议
AEE Tech， Seattle
Amazon Exports and Expansion is building new software components and
services responsible for enhancing the international shopping experience.
Our mission is to provide a one-stop shopping experience to international
customers. Amazon Exports and Expansion enable customers from over 77
countries t... 阅读全帖 |
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m**********t
发帖数: 385 | 39 Biomedical engineering scientist
Organization Description
Philips Research
Philips Research is the source of many advanced developments in Healthcare,Lifestyle and Technology. Building on 90 years’ experience in industrial research and our world-leading patent position, we’re dedicated to
meaningful innovations.
In the healthcare domain, we are enhancing imaging and monitoring systems,as well as exploring innovative personal healthcare. In lifestyle, we're helping people see, hear, remember and ... 阅读全帖 |
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s**o
发帖数: 256 | 40 warrenty有15年，现在房子是12年新，可能最多只用了12年，接到地下的valve可能有
漏水，修valve 要$200, 但不一定是valve的问题。如果这个问题修了，还有漏水，
plumber 建议我装expansion tank, 因为这里building code 本身最近几年都要求要装
expansion tank，这个花费大概需要$350。 而换一个新的 50 gallon的 hot water
heater （包括expansion tank） 大概是$900, plumber 劝我直接换一个，不知道要不
要换。所以想问问这里有经验的大牛，一般hot water heater 能用几年？多谢多谢。 |
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c*******n
发帖数: 1082 | 41 【 以下文字转载自 Boston 讨论区 】
发信人: cycleyuan (古月言兑八之首), 信区: Boston
标 题: 家里热水器坏了，求助！！！
发信站: BBS 未名空间站 (Thu Dec 18 15:10:14 2014, 美东)
现在家里是用propone的tankless热水器：
http://www.amazon.com/Rinnai-R75LSi-LP-Indoor-Propane-Tankless/
前房主09年安装的，现在已经坏了，另外这个热水器的最大问题是热水供应不够，只能
一个人洗澡，洗澡的时候其他水管不能使用热水（当然根据plumber说很可能是piping
的问题，比如cross connection），所以现在犹豫怎么办好，找了几个plumbing公司，
询价下来的几个option：
1.找HD联系的contractor，继续上大功率的 tankless $2850
2.Tank用电的: (50g tank) 450 + (expansion tank) 250 + (miscellaneous like
tubes) 100 + (plumb... 阅读全帖 |
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j********n
发帖数: 792 | 42 只给我们5天option day。功课都做不过来。。sigh。懂行的帮我们看看，谢谢咯！
A survey of the foundation was performed. The overall tilt of the foundation
was less than 0.15% as evaluated along the major axis. Several American
Society of Civil Engineers (ASCE) Foundation Subgroups consider tilt of less
than 1% acceptable. The local floor slope of the foundation was less than 0
.1 % in the front bedroom and other areas of the residence. Local floor
slope of up to 0.5% is acceptable to FHA and other lenders. The interior
distress... 阅读全帖 |
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i***e
发帖数: 9429 | 43 需不需要得看你的供水（冷水)和目前water heater 的结构。
water heater 在燃烧的时候，胆内热水大概是有1.5 到2% 的膨胀，这些膨胀多出来的
水需要通过一定的方式从内胆里排掉， 是不是？如果排不掉的话就会从P&T 阀端排除
， 是不是？
下面是关键了， 搞清楚以后在做下一步。
为啥以前的热水炉大都没有装expansion tank？是因为从city 的供水---到热水炉上的
冷水阀（进)---再到热水炉上的热水管（出），这3点之间是连通的。一旦热水膨胀后
，除非P&T出现误差，或者坏了，或者进水管腐蚀后进水口也来越小，膨胀会通过冷水
管push back 到city 的 供水管。
那么最进15年的房子很有可能供水管上或者water heater 上都装了类似单向阀的装置
，目的是不让冷水回流， 在这个情况下就必须装expansion tank。
一个很简单易懂的例子：为啥Boiler 一定要装expansion tank？因为boiler 是封闭系
统，Boiler 上的自动进水阀是单向的。
exp |
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h*******e
发帖数: 1968 | 44 你还来劲了，
随便翻开我手上的两本基本的普通物理，热学教材，都是先指出
"The overall thermal expansion of an object is a consequence of the change
in the AVERAGE SEPARATION between its constituent atoms or molecules."
...
the change to ANY DIMENSION is, to a good approximation proportional to the
first power of the temp. change...
Average separation 作为一个长度量的变化是导致热膨胀的本质。到底是几阶是由这
个本质觉决定的。体积无可避免是长度的三阶量。dcbang 疑惑的逻辑出发点没有问题。
到这里并没有说固体液体。
然后才是先定义固体线膨胀系数，然后用L平方推面膨胀系数，
用L三次方推体膨胀系数。
然后因为液体没有固定形状，所以只能测量液体的体膨胀系数，
液体的线膨胀系数没有实验意义，但并不表示不能为液体定义理... 阅读全帖 |
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h*******e
发帖数: 1968 | 45 你还来劲了，
随便翻开我手上的两本基本的普通物理，热学教材，都是先指出
"The overall thermal expansion of an object is a consequence of the change
in the AVERAGE SEPARATION between its constituent atoms or molecules."
...
the change to ANY DIMENSION is, to a good approximation proportional to the
first power of the temp. change...
Average separation 作为一个长度量的变化是导致热膨胀的本质。到底是几阶是由这
个本质觉决定的。体积无可避免是长度的三阶量。dcbang 疑惑的逻辑出发点没有问题。
到这里并没有说固体液体。
然后才是先定义固体线膨胀系数，然后用L平方推面膨胀系数，
用L三次方推体膨胀系数。
然后因为液体没有固定形状，所以只能测量液体的体膨胀系数，
液体的线膨胀系数没有实验意义，但并不表示不能为液体定义理... 阅读全帖 |
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g******n
发帖数: 53185 | 46 是很牛气。
Netflix CEO Reed Hastings Responds to Whitney Tilson: Cover Your Short
Position. Now.
A great investor and a wonderful human being, Whitney Tilson recently posted
an article about why he is short Netflix (NFLX). Whitney, who is a major co
-donor with me to charter public schools like KIPP, writes that he has lost
money betting against Netflix, and that he is still short Netflix in a big
way.
At Netflix we mostly focus on building our business and letting the numbers
do the talking. But Whi... 阅读全帖 |
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b****y
发帖数: 480 | 47 “Self-control is so important. You have to conserve your assets. That’s
what insulates you from the downturns and gives you the ammunition to make
money.” This is a classic rule for traders, you need to be able to survive
the learning years in order to stay in this game for the long haul, you do
that by taking small losses so you can live to fight another day. You need
to protect your capital and emotional capital in choppy downtrending markets
in order to take advantage of the healthy markets... 阅读全帖 |
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W***n
发帖数: 11530 | 48 China’s GDP Growth Beats Forecasts as Stimulus Supports Spending
Bloomberg News
October 18, 2015 — 9:00 PM CDT
China’s economy expanded quicker than economists forecast in the third
quarter, suggesting monetary and fiscal stimulus is supporting growth and
keeping Premier Li Keqiang’s 2015 expansion target within reach.
Gross domestic product rose 6.9 percent in the three months through
September from a year earlier, the National Bureau of Statistics said Monday
, beating economists’ estimates fo... 阅读全帖 |
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s*******m
发帖数: 39 | 50 转载：看到微博有人转说这个Greg Syskind是很牛逼的移民律师。他对这次移民新政的
summary。看不懂啊，重要的是合法移民的部分吧。
Siskind Summary: The Immigration Accountability Executive Action (IAEA)By
Admin On November 20, 2014 · 2 Comments
Update: Now appears no requirement to pay back taxes for deferred action
parents.
Update: Reporters – Shoot me an email at [email protected]
(function(){try{var s,a,i,j,r,c,l,b=document.getElementsByTagName("script");l=b[b.length-1].previousSibling;a=l.getAttribute('data-cfemail');if(a){s='';r=parseInt(a.substr(0... 阅读全帖 |
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