m*****e
发帖数: 1506 | 1 这个是民科胡诌的还是有些道理？
高铁严重辐射的真相
楼主：welfare530 时间：2013-01-15 23:58:00 点击：5778 回复：248
楼主发言：43次 发图：0张 最后更新：2013-01-17 00:53:59
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近期有一些关于国产高铁辐射问题的帖子，基本上都是贴出来马上就被删除了。但
是真相是掩盖不住的。作为一个了解真相的专家，我觉得冒着喝茶的风险也有必要在这
里说出真相
1）国产高铁从诞生一开始就存在严重的辐射问题。这主要是由于当时为了提高建
设速度，整个轨道采用的都是传统的钢轨。这样导致高压供电线路（27.5千伏高铁标准
线路）和地面存在电弧。每当高铁行驶速度超过150km/h的时候，这个电弧产生的辐射
问题就变得十分明显。在寒冷的夜间，有时候在农村地区，当高铁车体灯光关闭的时候
，甚至都能看见高铁行驶过后的微弱辐射光，好像鬼火一样。反观法国的高铁技术，为
了减少电弧产生采用的是塑料隔离路渣，也就说钢轨本身并不直接接触大地，隔着枕木
还隔着一层绝缘塑料。这种塑料垫层技术目前我国铁科院已经弄出来... 阅读全帖 |
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s**a
发帖数: 178 | 2 Company: Top Global Investment Bank
Loc: Sydney Australia
Position: Quantitative Analyst
Title: VP
Description:
We're basically looking for a mid-level Quantitative Analyst who has worked
on ABS Research - RMBS, CMBS, anything Asset-backed securities. It's to
work in the company's Securitisation business working on complex
securitisation transactions. PhD in Physics/Math/Finance/CS/EE preferred. 3-
5 years of relevant experience required.
************************************************
Anyone |
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b***k
发帖数: 2673 | 3 ☆─────────────────────────────────────☆
HDATX (HDA) 于 (Fri Feb 15 23:29:55 2008) 提到:
ding
☆─────────────────────────────────────☆
channelxue (channel) 于 (Fri Feb 15 23:39:09 2008) 提到:
我其实不太懂，随便说说哦
还是要看你想干什么,1 commerical bank做的mortgage是不是就是一些loan analysis,
credit risk? 那可能以后可以走financing什么的；你说的home equity部门似乎比较
狭窄，总最好是其他loan包括什么auto都作的,这样你以后如果到buy side或者自己出
来做的话，更有利；觉得做Mortgage得securtization比较exciting，也colourful，虽
然现在ABS,MBS问题很大，CMBS,student loans竟然都有问题....但是好像还是一个很
有价值的行业....
2.operatio |
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w*******3
发帖数: 116 | 4 刚开始做这方面的研究。 不知道业界都用什么做分析以及哪些东西比较重要。
请大侠推荐一下该读那些东西，如何下手。 谢谢。 |
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q*******t
发帖数: 17 | 5 "The Handbook of Mortgage-Backed Securities(Hardcover)" by Frank Fabozzi (
Author) |
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t*****k
发帖数: 15 | 6 Consider a 1,000,000 CMBS pass-through (PT) security consisting of fresh 15
year fixed rate loans that amortize over a period of 30 years
这个FRESH 15 FR，跟后面的30 years怎么理解 |
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t*****k
发帖数: 15 | 7 [50 pts total] Consider a 1,000,000 CMBS pass-through (PT) security
consisting of fresh 15 year fixed rate loans that amortize over a period of
30 years,
这个FRESH 15 跟后面的30 YEARS 怎么理解啊 |
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h*y
发帖数: 1289 | 8 都是abs，asset backed securities
underlying不同，cdo是a portfolio of bonds（这个portfolio还不一定真实存在）
cmo是a pool of mortgages.
cash flow不同，一个amortize一个不amortize
cdo主要考虑default correlation; cmo除了default之外prepayment非常重要(CMBS除
外）
......
总之这两个虽说都是abs但差别很大。 |
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n**r
发帖数: 1587 | 9 post for my recruiter, please contact them directly.
f******************[email protected]
Contact : 201 468 0519
Statistical Modeling-(PhD) - New York
Our clients, top-tier Management consulting firms advising international
banks and other financial firms based in NY, are looking for PhDs with
strong statistical modeling skills to join Quantitative Research & Analytics
teams.
The group conducts extensive research and builds prototype models that
estimate the economic stress on the credit risk of struc... 阅读全帖 |
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s*******n
发帖数: 631 | 10
How about the mortgage fixed_income products/market?MBS,CMBS.... |
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L********a
发帖数: 44 | 11 It all goes in cycle. with investors seeking for yields again, the leverage
will come back. Leverage comes in two forms. Balance sheet leverage (thru
repo ect.) and structured leverage (like tranche, HY ect.). CLO, CMBS are
back, non agency next ... ? |
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e****x
发帖数: 692 | 12 最近接触了些structured product，比如clo，cmbs，rmbs，做这些产品的valuation。
这些产品好像都不需要金融工程方面的知识。主要是看经验的。
不知道做这方面以后那些公司需要，职业发展怎么样？ |
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c********a
发帖数: 244 | 14 I have, pm me and I will send to you from home tonight. |
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s******e
发帖数: 1751 | 15 i want a copy as well. you can just tell me how to get it from intranet.
thanks, |
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c********a
发帖数: 244 | 17 sent to you. Pls help to send to others who also request this. thx. |
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p******b
发帖数: 523 | 18 can I have a copy too? my email address f*****[email protected]
thanks in advance |
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h*****0
发帖数: 23 | 19 We have an entry/junior level position now open in the investment risk
management area in our Enterprise Risk Management department of a big
multinational life insurance company. The main responsibility is to assist
in asset risk modeling (credit and market) and risk return analysis.
The candidate MUST have a green card or already have an H1B visa. The ideal
candidate will be:
1) Quick learner and good team worker
2) Have a quantitative background (e.g., math, physics, engineering,
actuarial sci... 阅读全帖 |
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h*****0
发帖数: 23 | 20 A little while ago I posted a position here. It has been filled.Now we have
another opening available with the same responsibility/requirements (see the
old post at the end). If you are interested, please send your resume to
h**********[email protected]
Please note:
1) you MUST already have H1B, green card, or US citizenship
2) be able to relocate to Springfield, MA / Hartford, CT area.
Thanks,
Old post:
--------------------
We have an entry/junior level position now open in the investment risk
manage... 阅读全帖 |
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L********a
发帖数: 44 | 22 Depending on the firm, some refers it to Correlation Trading Desk (i.e CSO,
Corp Synthetic CDO), some also refers to Cash CDO (i.e RMBS, CMBS, ABS) |
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f*********8
发帖数: 4 | 23 The company is looking for an exceptional individual to join its Research
Team in the Securitized Products area. The team researches, builds,
implements, maintains and evaluates quantitative collateral models of
securitized products (MBS, RMBS, CMBS, ABS, CLO, etc.), with application to
a diverse set of portfolio and risk management problems.
The ideal candidates should have very strong programming skill and mortgage
modeling experience. In case you have interest, please send your resume to
[ema... 阅读全帖 |
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l**n
发帖数: 67 | 24 Before we embark on more ambitious task, we'd better take a look at
another observational pillar of mordern cosmology, the 2.7K cosmic
microwave background radiation(CMBR). The angular power spectrum of
the CMB contains information on virtually all cosmological parameters
of interest,including the geometry of the universe, the Hubble
constant, \Omega_\Lambda, baryon density, number of neutrinos...
CMBR itself is a seperate branch in cosmology, so i am not going
to review the imprint of each para |
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l**n
发帖数: 67 | 25 Our discussion of the CMBR is far from completion. And I am still
not 100% convinced where does the energy of the CMB photon go? Let's
take a typical attitude of physicist, find a problem, couldn't solve
it and forget about it:) Commented by the experts, the blackbody
spectrum could be preserved when the photons decoupled from the
matter which acts the wall in the typical black cavity. To us non-
expert we should just be aware of the fact that the space and the
wave-length of the photon are stre |
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a****y
发帖数: 1035 | 26 【 以下文字转载自 Physics 讨论区 】
发信人: happytiger (快乐龙龙), 信区: Physics
标 题: 超新星与暗能量的发现－－今年诺贝尔物理奖工作的介绍[zz]
发信站: BBS 未名空间站 (Wed Oct 5 12:12:03 2011, 美东)
这个科普太好看了。
http://bbs.sciencenet.cn/home.php?mod=space&uid=3061&do=blog&id
今年的诺贝尔物理奖授予了三位在发现宇宙加速膨胀的研究中做出杰出贡献的学者：Pe
rlmutter, Schmidt和Riess. 应该说，由于这项工作无可争辩的巨大重要性，几年来他
们一直是获奖的热门人选。但是，导致宇宙加速膨胀的暗能量是什么仍是一个未解决的
问题，而相关的许多理论和观测还处在研究的前沿，存在许多疑问和争论，诺贝尔奖评
委会素有稳重、保守的传统，所以我原以为他们还要再过若干年才会获奖。因此，作为
一名宇宙学研究者，我为他们今年获得这项殊荣感到非常高兴。
Perlmutter, Schmidt 和 Riess 是因为对超新星的研究而获奖的。超新星的... 阅读全帖 |
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y***i
发帖数: 5492 | 28 来自主题: _ChenChuSheng版 - 存点东西 报告一下刚刚从WAMU wire 招行, FREE
这次用的是international wire, 而不是过去的domestic方法. 周二下午转账的,周三
国内就收到了.很快. 没有收一分钱手续费.
方法比以前的domestic简单.
Beneficiary Name: 收款人姓名(汉语拼音)
Beneficiary address: 收款人地址，e.g. Room xxx, No. xxx, xxx Road, City,
区号, China
Account number to be credited at receiving bank: 收款人在招行的账号16位一卡通
Receiving bank routing or SWIFT code: CMBCCNBS (招行的SWIFT)
Country: China
Receiving bank name and address: China Merchants Bank H.O. Shenzhen, CMB
tower #7088, Shennan Boulevard, Shenzhen, 518040, China
Corres |
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B*Z
发帖数: 7062 | 29 来自主题: _Auto_Fans版 - 新款MDX Refreshed 2017 Acura MDX Makes World Debut in New York with Bold New Styling
, Upgraded Features and Sport Hybrid Powertrain
? 2017 MDX showcases new diamond pentagon grille first seen on the Acura Pre
cision Concept
? New Sport Hybrid powertrain delivers the ultimate in power and control whi
le gaining 35 horsepower and anticipated to add 7 mpg to city fuel economy r
ating
? AcuraWatch? safety and driver assist technology to be offered as standard
equipment on all 2017 MDX models
NEW YORK (Mar.... 阅读全帖 |
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w****2
发帖数: 12072 | 30 【1945年8月15日，日本宣布无条件投降。八年艰苦抗战，中国终于取得胜利。然而这
一段岁月中的人与事，却在后人的转述中逐步走样。在日本投降69周年之际，观察者网
特地推出“抗战十大谣言”系列，以正视听。此前已刊发《抗日战争十大谣言之“名将
”张灵甫》《抗日战争十大谣言之孙立人活埋日军》《抗战十大谣言：起底“钓鱼帖”
》《抗战十大谣言之委员长卫队》《抗日战争十大谣言之八路军大规模种鸦片》《抗战
十大谣言之共产党只牺牲1位将军》《抗战十大谣言之“飞虎队”神话》《抗战十大谣
言之民国军工“黄金十年”》与《抗战十大谣言之日寇从未进攻延安》，本文是我们十
天披星戴月写作的最后一篇。谣言无尽，但面对中国人民的心灵永远只是尘埃。谨以此
纪念今日——日本投降69周年。】
抗日战争中，中国军民浴血奋战，最终联合世界反法西斯力量击败了日本侵略者。中国
军队多次利用巧妙的战法与过人的勇气，给敌人造成了沉重的打击，这其中不乏许多经
典战例，却也夹带着很多水分甚至谎言，从断章取义到以讹传讹再到无中生有，各种来
路的战果错综复杂，不仅给历史增添了荒谬，也让真正的英雄们被人们忽视甚至遗忘。
这些战绩或为战时鼓舞士... 阅读全帖 |
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E*E
发帖数: 52 | 31 I am interesting in EB5 Regional Center program. Can anyone recommend any
reliable project? or have anyone joined any EB5 project?
How is CMB #4 infrastructure project? |
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l********r
发帖数: 1175 | 32 CMB #4 infrastructure 是什么？ |
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w*****n
发帖数: 142 | 33 CMB #4 is a EB5 project running in CA, currently there are more than 70
projects running in US now in total.
EFE, please check your internal mail. |
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S******A
发帖数: 1002 | 34 需要交大约5W的保留协议保证金吗？ 据说200个名额 ？
谢谢 |
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m*********k
发帖数: 10521 | 35 成功奖励 20 伪币的用户:
wayofflying, wuyuzhishui, youyou, rinse, Herzog, zhouhao, boredman,
zairenjian, lovein, qmc, rabitxy, brout, wavelets, bigchipmunk, airdragon77,
kaymiliu, sweet845, zairenjian, sam2008, chen123, email5030, jsolomon,
TNEGIETNI, yiluo8204, annyaner, pooq, TenderOnce, mayvillage, sweetmilk,
sweet845, SinoGator, windloren, USMedEdu, az
奖励版面:(Australia)20伪币成功
奖励版面:(Basketball)20伪币成功
奖励版面:(ChinaNews)20伪币成功
奖励版面:(Dreamer)20伪币成功
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奖励版面:(Fishing)20伪币成功
奖励版面:(Fujian)20伪币成功... 阅读全帖 |
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