l****z
发帖数: 29846 | 1 The Worst of Both: The Rise of High-Cost, Low-Capacity Rail Transit
By Randal O'Toole
June 3, 2014
Most new rail transit lines in the United States and around the world are
either light rail, including lines that sometimes run in or cross city
streets, or heavy rail, which are built in exclusive rights of way, usually
elevated or in subways. Heavy rail costs far more to build than light rail,
but the capacity of light rail to move people is far lower than heavy rail.
In fact, the terms light and... 阅读全帖 |
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c**i
发帖数: 6973 | 2 (1) Editorial: A Lost Cause: The High-Speed Rail Race. Washington Post, Feb
16, 2011.
http://www.washingtonpost.com/wp-dyn/content
/article/2011/02/16/AR2011021605977.html
Quote:
"in Japan * * * only a single bullet-train line, between Japan and Osaka,
breaks even; in France * * * only the Paris-Lyon line is in the black.
"When it comes to high-speed rail, Europe, Japan and Taiwan have two natural
advantages over every region of the United States, with the possible
exception of the Northeast Cor... 阅读全帖 |
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N***i
发帖数: 2063 | 4 By: Zacks Equity Research
June 15, 2010 | Comments: 0
KSU | CNI | CP | CSX | NSC | UNP | BRK.A | BRK.B
Along with all other industries in the U.S., railroads also suffered during
the economic downturn. Freight rail is a “derived demand” industry --
demand for the rail service is tied with demand for the products that the
railroads haul. Rail traffic, therefore, acts as a solid barometer of the
overall health of the economy.
Since around 2003−2004, a number of factors have led to an increas... 阅读全帖 |
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W***n
发帖数: 11530 | 5 Ladbroke Grove rail crash
Date and time 5 October 1999 08:08
Location Ladbroke Grove
Rail line Great Western Main Line
Cause Signal passed at danger
Trains 2
Deaths 31
Injuries 523
The Ladbroke Grove Rail Crash (also known as the Paddington train crash) was
a rail accident which occurred on 5 October 1999 at Ladbroke Grove, London,
England. Thirty-one people were killed and more than 520 injured.
Contents
* 1 Incident
o 1.1 Cause
* 2 Aftermath
* ... 阅读全帖 |
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i**9
发帖数: 351 | 6 最先接触的是 python,然后就顺势接触了django,刚开始用django写一些web projects,
真是喜欢得不得了，以前接触过C# web form啥的，发现django太牛逼了，直接横扫C#
那一堆。
后来公司有些ruby scripts,又了解了一下ruby,也顺势了解了一下rails,现在开始
prefer rails over django.
rails advantages:
- bundle install
非常喜欢这个feature, sync code到一台新机器，只要一行 command line,you are
all set. python 有 pip -r requirements.txt 但是感觉还是没有 bundle 和 rails
结合的这么 seamless, 比如你没有 bundle install , rails server 就会fail.
- rails 把 development, test, production configuration都给弄好了，还是省了不
少事， django 只有一个 setting.py 每次depl... 阅读全帖 |
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c**i
发帖数: 6973 | 7 (1) The Past.
John Steele Gordon, Tracks Across America. Wall Street Journal, June 12,
2011
http://online.wsj.com/article/SB10001424052702303657
404576361331013796182.html?mod=WSJ_Books_LS_Books_6
(book review on (a) Richard White, Railroaded; The transcontinentals and the
making of modern America. Norton, 2011 and (b) Maury Klein, Union Pacific:
The Reconfiguration; America's greatest railroad from 1969 to the present.
Oxford Univ Press, 2011)
Note:
(a) doughty (adj): "marked by fearless resolu... 阅读全帖 |
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v**e
发帖数: 8422 | 8 China to export first light rail train to Turkey
By Sui-Lee Wee | Reuters – 17 hrs ago
tweet6
Share
Email
Print
BEIJING (Reuters) - China will soon send its first shipment of domestically
produced light rail trains to Turkey, state media said on Sunday, even as a
deadly high-speed train crash in late July threatens to undermine the
country's plans to export its train technology.
The light rail trains, manufactured by China's CSR Zhuzhou Electric
Locomotive Co., Ltd. will go into service in Izmir... 阅读全帖 |
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w*******y
发帖数: 60932 | 10 LaserMax Uni-Max Green Rail Mount Laser with Integral Rail:
http://www.amazon.com/LaserMax-Uni-Max-Green-Mount-Integral/dp/
This high-visibility green laser is compact, rugged, and fits Picatinny; Mil
-Spec; Weaver Style Rails (with minimum rail length of 1.75-Inch) Battery
Type: 1/3N Lithium (2) Accuracy: User-adjustable for windage and elevation.
Wavelength: 532nm (green) Power Output: 5mW. Spot Size: 5/16-Inch @ 7 Yds; 3
/4-Inch @ 25 Yds.
Highest visibility in ALL lighting conditions. Incredi... 阅读全帖 |
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s****l
发帖数: 255 | 11 【 以下文字转载自 Living 讨论区 】
发信人: szFool (**), 信区: Living
标 题: 室外阶梯扶手 Exterior Stair Railing
关键字: exterior stair railing contractor outdoor
发信站: BBS 未名空间站 (Thu May 5 01:28:36 2016, 美东)
大伙有没有安装exterior stair railing的经验？混凝土阶梯上需要装金属的railing：
1. 找什么样的contractor？可不可以DIY?
2. 材料railing, anchor哪里买比较好？
谢谢 |
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d********g
发帖数: 10550 | 12 “不能追上”是个伪命题。Rails其实比较适合新手入门，语言入门难度上Python小于
Ruby，但是框架入门难度Rails小于Django，因为啥都magic了，新手根本不知道底层为
啥这么干，入门容易成高手难
Django前几年专门有一个branch是搞magic removal的，然后发布了1.0。Rails直到今
天还搞magic搞得那么起劲。理念不同
后端退化成RESTful API server后，Rails的内置ajax实现反而成了负担。如果你只是
在Ruby世界肯定习惯Rails一家独大，但是你在Python世界就会知道还有好些个
framework比如Flask、Pylons/Pyramid，大家理念不同但可以共存 |
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b****o
发帖数: 85 | 13 最后一句话相当牛～
－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
China Again Hopes to Drive U.S. Rail Construction
By KEITH BRADSHER
BEIJING Nearly 150 years after American railroads imported thousands of
Chinese laborers to build rail lines across the West, China is poised once
again to play a role in American rail construction. But this time, it would
be an entirely different role: supplying the technology and engineers to
build high-speed rail lines.
The Chinese government has signed cooperation agreements wit |
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h*z
发帖数: 678 | 14 车出了事故，正在维修。
现在有新问题是发现frame rail有问题，之前的评估里面没有。
修车的地方正在考虑是修还是换新的
frame rail，说过两天再下决定。
我比较担心修理或者换新的frame rail以后车会有一些安全隐患。
比较frame rail牵连到的地方比较多。
请问，这个担心是多余呢还是合理的。
其实，有些想车totaled的，但保险公司现在说车还是可以修的。
两年新的车。
大家的意见是怎么样的呢？
谢谢！ |
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h********o
发帖数: 3320 | 15 我觉得直接在加在rail上不结实。还是直接从deck地板上立起来，和rail的支柱平行并
和rail的支柱连以来应该比较结实，缺点就是和rail可能不是在一个平面上了。
homedepot有卖地震retrofit的各种固定连接铁片，直接bolt上。应该会比较结实。 |
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r**k
发帖数: 1402 | 16 Prices are per person based on double occupancy, tax included. Connecting
rail from your city is available upon request. Contact a rail specialist for
details.
Prices do not include National Parks entrance fee.
Prices are are correct at the time of this web page being published; yet,
are subject to confirmation at time of booking. Vacations By Rail can supply
connecting rail from your closest Amtrak Station. |
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k*******n
发帖数: 5546 | 17 听不少老外说Centurion Arms的Rail不错，正好碰到个很便宜的二手货，便弄来试试。
特点:
--很轻 不粗
--螺丝：后边4个 前边2个，Rail直接卡在标准Barrel Nut上，省事，而且很牢。
--两片式设计，懒得拆FSB或者有巨大Pinned Muzzle Device的，省事多了。
--细节不错，末端有两个小耳朵，可以防扭转；前后共四个固定sling的窟窿。
--靠近magwell的地方留出了空间，方便喜欢magwell grip的用户。
--有FSB的可以用9寸和cutout的，我这个是10寸的，嫌短还有12寸的，当然前边会多点
重量
不足:
--不便宜
--也不细，喜欢Thumb Over Bore Grip的，这个不如圆的rail舒服，可能装个AFG会好
点。
总之，质量和设计不错，安装方便牢固，用腻了DD和KAC的Rail,可以试试这个换个口味。 |
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w*****o
发帖数: 1806 | 18 tapco这个quad rail设计的真是不错，感谢kevinwu兄弟的推荐。装了很满意，来强推
一把：
-目的：给AK装红点，本来纠结的问题包括价钱，安装，co-witness,重量，握的舒适与
否加上守法的限制。
-结果，真的很意外，但是居然全部实现了。
价钱便宜，amazon才40出头；
安装容易，google一下安装video，无工具15分钟搞定没问题。也不影响未来gas tube
的拆装和清洁。
重量，几乎和原来的handguard一样重。因为是poly为主，里面加铝heat shield做成的
。所以够轻，也没有ultimak之类替换了gas tube的不安定因素。 左右只有一小段rail
，这设计很好。
co-witness, 这是之前纠结最严重的问题，其他备选方案都是3倍到6倍的cost。我想要
co-witness也就是想让铁瞄还能用，并不是非得严格co-witness，就是防万一如果红点
没电了啥的，结果这个目的做到了，因为tapco在顶上rail中间挖了个槽，刚好还可以
用铁瞄瞄准。见图。
俺的小pistol肯定是如果能装个前握把最稳当啦，可惜那样就违法了，所以只... 阅读全帖 |
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w*******y
发帖数: 60932 | 19 best buy has chuggington dvd on sale for $4.99 it is only the lets ride the
rails one.
Link:
http://www.bestbuy.com/site/Chuggington: Let'S Ride The Rails - DVD/2097718.p?PID=5445283&id=2171310&ci_sku=2097718&ref=39&ci_src=11138&loc=01
#39;S+Ride+The+Rails+-+DVD/2097718.p?PID=5445283&id=2171310&ci_sku=2097718&
ref=39&ci_src=11138&loc=01" rel="nofollow" target="_blank" onclick="_gaq.
push(['_trackEvent', 'thread', 'click', '3784868 - chuggington-lets-ride-the
-rails-dvd-1-at-best-buy-bm-only']);"... 阅读全帖 |
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n**********r
发帖数: 2061 | 20 Sheng Guangzhu, Chinese Rail Chief, Should Resign
While Sheng Guangzhu, Chinese Rail Chief, is leading the rail ministry of
China, he is taking ultimate responsibility of the loss of life in Wenzhou
train crash accident. He could not and should not keep the superior power
and welfare after neglecting the possibility that there might be more than
one little girl still alive inside the trains which were tossed off the
bridge, demolished and buried by the rescue team. He owns the official
apology f... 阅读全帖 |
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n**********r
发帖数: 2061 | 21 Sheng Guangzhu, Chinese Rail Chief, Should Resign
While Sheng Guangzhu, Chinese Rail Chief, is leading the rail ministry of
China, he is taking ultimate responsibility of the loss of life in Wenzhou
train crash accident. He could not and should not keep the superior power
and welfare after neglecting the possibility that there might be more than
one little girl still alive inside the trains which were tossed off the
bridge, demolished and buried by the rescue team. He owns the official
apology f... 阅读全帖 |
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q****c
发帖数: 45 | 22 hi, 我们验证team需要招聘一位 web designer with rails :
1.熟练掌握ruby language.
2.有用rails做网站的经验， 包括 ：数据库设计，前端网页设计，后端
rails实现. (html, javascript, etc...)
3. familiar to c/c++ is a plus.
4. familiar to verification is a plus.
5. familiar to SCM like perforce/vcs/git is a plus.
工作内容包括：
1。根据需要迅速用 ruby script实现相应的tools,使验证工作自动化。
2。根据需要设计并实现相应的 web apps, 包括前端和后端.数据库
因为是内部使用，所以不需要大型网站的经验。但是对设计的可重用
性和网页的美观有教高要求。
有意者请联系 q****[email protected] |
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h****n
发帖数: 298 | 23 Minimum 2 years Ruby on Rails experience.
You have worked with live web applications of medium to large scale and are
a team player comfortable with agile software development. You contribute to
open source projects (link to your github account would be great).
• Experience building complete web applications in Rails (examples
required).
• Experience creating Web Services (REST)
• Excellent grasp of MVC and DRY principles.
• Comfortable using jQuery.
• ... 阅读全帖 |
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L*******6
发帖数: 47 | 24 【 以下文字转载自 JobHunting 讨论区 】
发信人: LiDan1276 (LiDan), 信区: JobHunting
标 题: ruby on rails的job market如何呀？
发信站: BBS 未名空间站 (Fri Aug 7 22:49:09 2015, 美东)
大家好，我今年1月材料系毕业。现在在通往转行software engineer的道路上。
最近打算上个full stack engineer的培训班，叫App Academy，是教ruby on rails的
，已经被accept，他家要求下周三前回复。因为知道最近node.js比较火，想请问大家
ruby on rails的job market如何呀？
谢谢大家了！ |
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l********w
发帖数: 289 | 25 有一扇窗户，总是pop out of rail。取下窗户，发现没有轮子，就是两片铝，在窗框
的rail上滑动。在两侧应该各有一个灰色塑料件但现在有一侧缺失。感觉这个小件就是
把窗户hold在rail上，不知道这个东东的英语是什么，有谁知道名字，好在ebay上买，
谢谢。 |
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s****l
发帖数: 255 | 26 大伙有没有安装exterior stair railing的经验？混凝土阶梯上需要装金属的railing：
1. 找什么样的contractor？可不可以DIY?
2. 材料railing, anchor哪里买比较好？
谢谢 |
|
s*******0
发帖数: 164 | 27 还有，commuter rail上的环境好不好？如果加班回家晚的话是否安全呢？冬天下雪时
候这个rail还开吗？ |
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c*u
发帖数: 916 | 28 我需要weekday从boston西郊去纽约，因为害怕纽约市里面的交通和停车，因为我离
Boston本身也要开车一小时，所以想开车到纽约北部郊区，然后坐Metro North
commute rail进城，纽约北边有什么commute rail车站容易停车的么？Harlem线和New
Haven线都可以，我预计到达commute rail的时间是在上午9点左右。 |
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P******s
发帖数: 21 | 29 Ruby on Rails--一个使用Ruby语言所写的开源网络应用框架，Ruby语言以自然、简洁
、快速著称，全面支援面向对象程序设计，而Ruby on Rails则是Ruby广泛应用方式之
一，可以说正是Ruby on Rails的流行，才得以成就了Ruby语言。 |
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r*****7
发帖数: 574 | 30 今天去靶场实弹测试了一下U.S. Palm/ MI Rail + Primary Arms Micro Dot, 特此汇
报如下, 以供大家参考:
Rifle: Arsenal SGL21-61 Saiga AK-47
Ammo: Wolf Military Classic 7.62x39mm 124 Grain FMJ 2330 fps
Group: 5 rounds each
First of all, I zeroed the red dot @ 50yd and shot 50 rounds.
Second of all, I moved the target to the 100 yard line and shot 100 rounds.
Finally, I moved the target back to the 50 yard line and shot 50 rounds to
see whether the rail and the red dot can hold the zero properly or not.
多说无益 总结如下:
zero后 @50yd ... 阅读全帖 |
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m*****u
发帖数: 277 | 33 发现好像左右和下面都不能直接装东西啊，好像给装几个rail才行，但是这个rail是用
螺丝直接固定的么？好像不是很make sense啊。。。
大家推荐个rail吧！ |
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H******S
发帖数: 6011 | 34 If you were about the purchase a 1911, will you lean to rail version or no
rail version? |
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a***a
发帖数: 8941 | 36 对1911，别的我都能忍受，只有两个特别不能忍受，一是双排弹夹，另外就是外置抽壳钩
这两个只要具备一个，就是特别不正宗的1911
rail其实还凑合，虽然我觉得没有rail的更正宗一点。 |
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T*****r
发帖数: 225 | 37 If you are not going to put a light on it, go with non rail. I think the
non rail version has a more classic look. |
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q****c
发帖数: 45 | 38 hi, 我们验证team需要招聘一位 web designer with rails :
1.熟练掌握ruby language.
2.有用rails做网站的经验， 包括 ：数据库设计，前端网页设计，后端
rails实现. (html, javascript, etc...)
3. familiar to c/c++ is a plus.
4. familiar to verification is a plus.
5. familiar to SCM like perforce/vcs/git is a plus.
工作内容包括：
1。根据需要迅速用 ruby script实现相应的tools,使验证工作自动化。
2。根据需要设计并实现相应的 web apps, 包括前端和后端.数据库
因为是内部使用，所以不需要大型网站的经验。但是对设计的可重用
性和网页的美观有教高要求。
有意者请联系 q****[email protected] |
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b******e
发帖数: 1861 | 39 买SSD之前在网上查到的说thinkpad w530带的硬盘是7mm的，结果错过了好几次m4 9.
5mm的都没买，最后买了个840 pro。结果等电脑到手打开硬盘一看是9.5mm的，悲催了
，网上到处找不到这个原装的7mm rubber rail卖。如果有哪个兄弟的thinkpad是原装
7mm的要换成9.5mm的SSD我们可以交换或则卖给我。谢谢。
我要的rubber rail是下面Link里最下面一个帖子里的图，和9.5mm rubber rail的大小
一样，唯一区别是里面有internal ridge.
http://forums.anandtech.com/showthread.php?t=2257424 |
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c*********e
发帖数: 16335 | 40 【 以下文字转载自 Programming 讨论区 】
发信人: convergence (Rex), 信区: Programming
标 题: rails和java,c#的rest web services比较，有何优缺点？
发信站: BBS 未名空间站 (Sun Oct 20 10:56:01 2013, 美东)
貌似现在很多19岁高中毕业生都在用ruby on rails做rest web services.
大家说说，ruby on rails和java,c#的rest web services比较，有何优缺点？ |
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c*********e
发帖数: 16335 | 41 【 以下文字转载自 Programming 讨论区 】
发信人: convergence (Rex), 信区: Programming
标 题: rails和java,c#的rest web services比较，有何优缺点？
发信站: BBS 未名空间站 (Sun Oct 20 10:56:01 2013, 美东)
貌似现在很多19岁高中毕业生都在用ruby on rails做rest web services.
大家说说，ruby on rails和java,c#的rest web services比较，有何优缺点？ |
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d********g
发帖数: 10550 | 42 你理解错误
Ruby比Python灵活
Python的framework比Ruby的多
Rails比Django容易入门。为啥Rails网站普遍美工水平高一些？因为文科转行学Rails
的超多…… |
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N***i
发帖数: 2063 | 45 By: Zacks Equity Research
June 15, 2010 | Comments: 0
KSU | CNI | CP | CSX | NSC | UNP | BRK.A | BRK.B
Along with all other industries in the U.S., railroads also suffered during
the economic downturn. Freight rail is a “derived demand” industry --
demand for the rail service is tied with demand for the products that the
railroads haul. Rail traffic, therefore, acts as a solid barometer of the
overall health of the economy.
Since around 2003−2004, a number of factors have led to an increas |
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c**i
发帖数: 6973 | 46 Today (Feb 14, 2011) Financial Times has two articles:
(1) John Paul Rathbone and Naomi Mapstone, China in Talks Over Panama Canal
Rival; Negotiations with Colombia on rail link; Bogota hopes to spur US on
free-trade pact (top article in front page).
(2) Robert Wright, Bogota Eyes 'Dry Canal' to Rival Panama Route; nws
analysis; Interoceanic rail line's success would rest on its ability to ship
goods quickly and cheaply (page 4).
My comment:
(a) A map and graphics accompany (2) in the print.
(i)... 阅读全帖 |
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c**i
发帖数: 6973 | 47 (1) Keith Bradsher, China Is Eager to Bring High-Speed Rail Expertise to the
U.S. New York Times, Apr. 8, 2010.
http://www.nytimes.com/2010/04/08/business/global/08rail.html?scp=1&sq=china%20high-speed%20&st=cse
(2) Jamil Anderlini, China on track to be world's biggest network; Plans to
grow the rail market spark concern for the aviation sector. Financial Times,
Apr. 6, 2010.
www.ft.com/cms/s/0/353fecc8-40e1-11df-94c2-00144feabdc0.html
("China's state-controlled carriers * * * are faced with a p |
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c**i
发帖数: 6973 | 48 Michael Cooper, How Flaws Undid Obama’s Hope for High-Speed Rail in Florida
. New York Times, Mar 12, 2011.
http://www.nytimes.com/2011/03/12/
us/12rail.html?scp=1&sq=florida%20crist&st=cse
Quote:
Florida Governor Rick Scott "joined several other Republican governors in
spurning federally financed train projects over fears that their states
could be on the hook for future costs.
"The Tampa-to-Orlando route had obvious drawbacks: It would have linked two
cities that are virtually unnavigable with... 阅读全帖 |
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w**9
发帖数: 225 | 49 不确定是否要加roof rail,compact SUV, 如果没有roof rail会不会觉得秃了？还是没
差？
价格差个几百这样，但是肯定是不会用的。 就是在美观上比较纠结。 |
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c*******t
发帖数: 1095 | 50 像suv那种有roof rail的车， 如果想装ski carrier， 要先装一对叫roof rack cross
bar的东西，再把ski carrier／rack 装在cross bar上。 问题是为什么不直接把ski
carrier 装 roof rail上？ 只是方向换了90度，就不用装两样东西了。
请指教 |
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