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全部话题 - 话题: hydraulics
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B*Z
发帖数: 7062
1
来自主题: Automobile版 - CRV, RDX 和 Pilot的AWD
经常有人问,今天试着回答一下。说错了,请指正。都是现在版本。
1. CRV
大名叫做Real Time AWD with Intelligent Control System。这里是官网介绍
http://www.loyaltysite.ca/HondaCRVimmersion/EN/AWD.html
The new Real Time AWD still uses a multi-plate clutch, similar to the clutch
es used in Honda automatic transmissions, to connect the driveshaft to the r
ear differential. But in place of the twin hydraulic pumps and ball cam mech
anism used previously, the system now uses an electric motor driving a singl
e hydraulic pump, which operates the clu... 阅读全帖
f*********r
发帖数: 7485
2
来自主题: Automobile版 - 那款车是最骗人,最贵的太公四驱?
http://www.edmunds.com/honda/cr-v/2012/road-test/
Previous CR-Vs used a rudimentary all-wheel-drive system that required an
actual rotational difference between the front and rear wheels before a pair
of hydraulic pumps would act on a clutch to send torque to the rear
differential. On the 2012 CR-V, you still have one hydraulic pump to operate
the clutch, but now it's driven by an electric motor that's hooked up to
the ECU, so you can get torque to the rear wheels before the front wheels
even st... 阅读全帖
E****a
发帖数: 3088
3
来自主题: Automobile版 - $13K左右 怎么选择Ford Fusion?
Ford Focus Steering Problem Prompts Many Complaints, but No Inquiry
Wheels
By CHRISTOPHER JENSEN DEC. 24, 2015
Continue reading the main story
Share This Page
Share
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More
Save
Photo
Beginning with the 2012 model year, the Ford Focus used an electric motor
for the power steering, instead of a hydraulic pump. Credit Gary Cameron/
Reuters
FEDERAL safety regulators have received over the last four years about 150
complaints with a common theme from owners of the 2012 F... 阅读全帖
W***n
发帖数: 11530
4
来自主题: Automobile版 - 无标题
Statement by American Honda Regarding CVT Drive Pulley Shaft Recall: 2014-
2015 Civic and 2015 Honda Fit
Oct 1, 2015 - TORRANCE, Calif.
Honda will voluntarily recall approximately 143,000 model-year 2014-2015
Civic and 2015 Fit vehicles in the United States to update the software that
manages the continuously variable transmission (CVT), free of charge.
Affected vehicles have CVT control software that is written to use high
hydraulic pressure during certain CVT operation modes, which as a result... 阅读全帖
b*********s
发帖数: 1
5
南加州大学:2人
马清运
南加州大学建筑学院院长(10月5日正式宣布)
dean of the USC School of Architecture and holder of the Della and Harry
MacDonald Dean's Chair in Architecture
1988年毕业于清华大学建筑系,Upenn建筑系硕士
http://arch.usc.edu//page_3082.jsp
Liang Chen
Assistant Professor of Biological Sciences
University of Southern California
http://www.usc.edu/schools/college/faculty/faculty1012741.html
毕业时间及学位待考
麻省理工学院Sloan管理学院
Juanjuan Zhang
Assistant Professor of Marketing
MIT Sloan School of Management
http://forms.mit.edu/~jjzhang/
Ph.... 阅读全帖
h***i
发帖数: 11
6
来自主题: JobHunting版 - 求热工水力或者流体力学方向内推
小弟明年fresh Ph.D毕业 研究方向包括fluid flow measurements (LDV and PIV),CFD.
哪位大哥能提供个内推的机会 thermal hydraulic, flow assurance, hydraulic
engineer etc方向都行 多谢

发帖数: 1
7
大家好! 我是今天6月毕业的机械硕士生(Mechanical Engineering), OPT 今年5月
底开始, 急找工作,请大家帮忙关注相关的内推机会。 感激不尽!
以下是我感兴趣的工作机会,但是我也open to 其他的工作机会。
1.Quality and Manufacturing Engineer positions
相关背景:
1) 学过Six Sigma Greenbelt 课程, 擅长用Minitab做质量相关的数据分析
和模型。
2) Thermo Fisher做过Manufacturing Intern:
i.Good at quality issues troubleshooting, corrective actions
proposal, implementation and effect estimation and report documetation
ii.Supported product transition through schedule meetings with
overs... 阅读全帖
H*****9
发帖数: 29
8
来自主题: JobMarket版 - 2 openings of Manufacturing Engineer
Manufacturing Engineer
Employer: ACE MANUFACTURING INDUSTRIES, INC
2325 PAMPERIN RD, STE 1
GREEN BAY, WI 54313-8930
Work Site of Job: Brown County and Green Bay
West Side
Public Transportation: No
Pay: Compensation will depend on previous
experience and skills
Duration/Hours Per Week: Full-Time, 40 Hours Per Week
Shift/Work Days: First Shift
Number of Openings: 2
Required Travel: 50% time in China
Minimum Requirements of Employe... 阅读全帖
n*******a
发帖数: 8
9
2011招聘——西北机电工程研究所
西北机电工程研究所简介
A Brief Introduction of
Northwest Institute of Mechanical & Electrical Engineering
西北机电工程研究所始建于1957年,是集机械、电子、液压、自控、测试、光学、工程
力学和计算机科学等多学科为一体的大型综合应用技术研究所。首任所长是被誉为“中
国的保尔柯察金”——吴运铎同志。全所现有职工1300余人,其中专业技术人员900余
人,研究员级高级工程师近80人,高级工程师近300人。现有8位国家级和省部级有突出
贡献的专家,享受国务院政府特殊津贴的专家30余人。
Founded in 1957, Northwest Institute of Mechanical & Electrical Engineering
is a
large comprehensive applied technology institute incorporating various
studies including mechanical, electrical, hyd... 阅读全帖
m***y
发帖数: 14763
10
Honestly? No big deal. The patch is failing, you just need to re-do the
patch.
Ideally, it should be patched from the exterior, especially in your case,
obviously, the water table is high and so is the hydraulic pressure during
the rain season. But considering the size, it's not worth it. For now, just
mop it up :) The amount of water is not even worth a hydraulic cement patch.
y***j
发帖数: 11235
11
按照公司来看,其实他家还是挺牛的。
Infrastructure
CRC-Evans International – Construction of pipelines for the oil and gas
industry
Stanley Hydraulic Tools
Hardware
Baldwin – Acquired in 2010.
Emhart Teknologies – Fastening and assembly. Acquired in 2010.
National Hardware – General hardware. Acquired in 2005.
Precision Hardware – Panic and fire exit hardware.
Pfister – Faucets and other plumbing hardware. Acquired in 2010.
Stanley Hardware
Vidmar – Industrial storage. Acquired... 阅读全帖
y******i
发帖数: 2584
12
http://www.bloomberg.com/news/2012-12-31/shale-gas-revolution-s
Shale-Gas Revolution Spurs Wave of New U.S. Steel Plants: Energy
By Sonja Elmquist - Dec 31, 2012 5:28 PM ET

Daniel Acker/Bloomberg
Hydraulic fracturing of shale rock formations from Texas to West Virginia
has boosted supplies of gas and sent prices plunging by as much as half in
the past two years. Gas futures reached a decade low of $1.91 per million
British thermal units in April in New York trading.
The U.S. shale-gas revolut... 阅读全帖
C****a
发帖数: 6593
13
来自主题: Stock版 - 平安夜里话石油
前些日子,看到板上好多大侠讨论了石油和油价的问题。今天事情少,俺也随便说两句
自己的理解。
很多人讨论石油,都是从美国vs俄罗斯、沙特vs美国、传统油气产业vs页岩油气产业这
样的大视角来说。我本人见识狭小,这些大局的东西俺都看不懂,俺就从俺懂的石油公
司的角度随便说说。
之前网上一个常见的观点是,这一把油价雪崩,美国各大石油公司都会受伤惨重。我对
此比较保留。在美国财阀政治的大背景下,石油公司都有强大的政治力量,如果不取得
石油财团的谅解,油价能那么莫名其妙在没有任何big event的情况下,突然就从100+
的高位崩到60以下,并且做出长期走低的姿态?我认为,大石油公司在这场油价雪崩中
必然是有收益的,因此他们才愿意支持并维持低油价一段较长的时间。问题在于大石油
公司在这场油价雪崩中,到底会有什么样的收益。
有这么一个故事,说两个人在山里走,突然蹦出个老虎。一个人扭头便跑,另一个低下
头系鞋带。跑的那个人说:你系鞋带也跑不过老虎啊。系鞋带的人说:我不需要比老虎
跑得快,我只要比你跑得快。如果这两个人是亲朋友好友,这个故事自然就很残忍。但
是倘若这两个人不是亲朋好友,而是仇家冤家,... 阅读全帖
b*********n
发帖数: 182
14
A Hydraulics Company has position open, must know how to use Solidworks
for Part, assembly drawings, and speak Chinese.
Other job duties including:
*Coordinate engineering projects between Sales, Customers and Vendors
*Conduct inspection, testing, process improvement and quality control
*Manage ECR/ECN Documentations & Company part number system.
Degree in Mechanical, Industrial or Material Science Engineering or
equivalent experience
Knowledge of hydraulics power system, tooling, molding and ma... 阅读全帖
I*******g
发帖数: 7600
15
【 以下文字转载自 Military 讨论区 】
发信人: beijingren (to thine own self be true), 信区: Military
标 题: 加州水不能喝了:30亿加仑毒水灌进地下水库
发信站: BBS 未名空间站 (Mon Nov 17 20:04:47 2014, 美东)
Waste Water from Oil Fracking Injected into Clean Aquifers
http://www.nbcbayarea.com/investigations/Waste-Water-from-Oil-F
"They lie, cheat, and steal without rest."
State officials allowed oil and gas companies to pump nearly three billion
gallons of waste water into underground aquifers that could have been used
for drinking water or irrig... 阅读全帖
S**r
发帖数: 2478
16
来自主题: SanDiego版 - 周末把机油换了
我用这种液压的千斤顶,顶起来以后,再用jack stand撑住。
hydraulic car jack和jack stand。
http://www.amazon.com/Torin-T90203-Hydraulic-Bottle-Jack/dp/B00
http://www.amazon.com/Torin-T42002-Ton-Jack-Stand/dp/B0028JQYPG
液压的千斤顶不能撑车(说明书上写得很清楚),因为压力可能会慢慢释放。
scissor car jack应该可以吧.
h***i
发帖数: 11
17
【 以下文字转载自 JobHunting 讨论区 】
发信人: heizi (heizi), 信区: JobHunting
标 题: 求热工水力或者流体力学方向内推
发信站: BBS 未名空间站 (Sun Sep 21 22:32:05 2014, 美东)
小弟明年fresh Ph.D毕业 研究方向包括fluid flow measurements (LDV and PIV),CFD.
哪位大哥能提供个内推的机会 thermal hydraulic, flow assurance, hydraulic
engineer etc方向都行 多谢
b***i
发帖数: 3043
18
来自主题: Texas版 - 平安夜里话石油 (转载)
【 以下文字转载自 Stock 讨论区 】
发信人: Cibora (City of Gold), 信区: Stock
标 题: 平安夜里话石油
发信站: BBS 未名空间站 (Wed Dec 24 15:31:34 2014, 美东)
前些日子,看到板上好多大侠讨论了石油和油价的问题。今天事情少,俺也随便说两句
自己的理解。
很多人讨论石油,都是从美国vs俄罗斯、沙特vs美国、传统油气产业vs页岩油气产业这
样的大视角来说。我本人见识狭小,这些大局的东西俺都看不懂,俺就从俺懂的石油公
司的角度随便说说。
之前网上一个常见的观点是,这一把油价雪崩,美国各大石油公司都会受伤惨重。我对
此比较保留。在美国财阀政治的大背景下,石油公司都有强大的政治力量,如果不取得
石油财团的谅解,油价能那么莫名其妙在没有任何big event的情况下,突然就从100+
的高位崩到60以下,并且做出长期走低的姿态?我认为,大石油公司在这场油价雪崩中
必然是有收益的,因此他们才愿意支持并维持低油价一段较长的时间。问题在于大石油
公司在这场油价雪崩中,到底会有什么样的收益。
有这么一个故事,说两个人在山里走,突... 阅读全帖
c***g
发帖数: 357
19
现在导师骗经费都教一些根本不具备去公司出生产力的东西,除了做post doc和RD,你
说的这些根本没用,即使油价回来了,各个公司也不敢像以前那样在RD上乱扔钱了,别
什么流体了,hydraulics在石油界比fluid dynamics有用多了。womack machine出的那
三本hydraulics才是你找工作的敲门砖
你要别人帮你内推,现在即使有公司能有职位放出来,别人也不敢内推你,因为你去了
不能给公司带来经济效益,除非RD,做RD,很多公司一没bonus,二没保障,油价一有
波动第一批裁的就是RD
2011年,2012年那会儿整个德州版都是炫耀自己拿了多少钱的ID,以及互相约中午吃饭
的帖子,现在这些ID都销声匿迹了。我都怀念那个jianfeiba了,哈哈哈

模。
c***g
发帖数: 357
20
现在导师骗经费都教一些根本不具备去公司出生产力的东西,除了做post doc和RD,你
说的这些根本没用,即使油价回来了,各个公司也不敢像以前那样在RD上乱扔钱了,别
什么流体了,hydraulics在石油界比fluid dynamics有用多了。womack machine出的那
三本hydraulics才是你找工作的敲门砖
你要别人帮你内推,现在即使有公司能有职位放出来,别人也不敢内推你,因为你去了
不能给公司带来经济效益,除非RD,做RD,很多公司一没bonus,二没保障,油价一有
波动第一批裁的就是RD
2011年,2012年那会儿整个德州版都是炫耀自己拿了多少钱的ID,以及互相约中午吃饭
的帖子,现在这些ID都销声匿迹了。我都怀念那个jianfeiba了,哈哈哈

模。
m*****n
发帖数: 3644
21
来自主题: Cycling版 - LBS这个山地车合适不?
看中BD一个899的,光前叉,变速,刹车,crankset,看amazon报价,基本就值800了
http://www.bikesdirect.com/products/gravity/29point4.htm
Fork 29" SUSPENSION FORK, ROCK SHOX RECON SILVER 100mm Travel, Lockout
Crankset FSA Comet 22Tx32Tx42T(for 30-SP)x175mm, ALLOY BLACK CRANK arms
Front Derailleur SHIMANO DEORE SLX, 31.8mm clamp
Rear Derailleur SRAM X9 long cage, for 30 Speed
Shifters SRAM X7, 30 speed, trigger shift
Brakes Avid Elixir 3 Hydraulic Disc Brake, 185mm Rotor front and rear
Brake Levers A... 阅读全帖
G***G
发帖数: 16778
22
来自主题: Fishing版 - how to make homemade spoon
Fishing can make a good fun today. People like fishing.
But people like economically fishing more.
Fishing licenses, poles, live bait, fishing boats and other hardware
and even software today can run you a good luck for you to catch
fish. But it would be greater fun if you catch
fish with less money.
This is why we like to make homemade fishing lures.
Today I will talk about how to make a homemade spoon.
material:
1) split rings
2) spoons
3) hooks ( trebble hooks)
4) paint and paint brush
5) san... 阅读全帖
s*******n
发帖数: 12995
23
来自主题: GunsAndGears版 - 如何让AR10后座象AR15?
所以要加muzzle brake+enidine hydraulic buffer.
但对于enidine hydraulic buffer的有效性和稳定性,褒贬不一。
e*f
发帖数: 1709
24
Mossberg item # 55111: 500 slugster with 12 ga fluted rifled barrel and
canister scope rail, LPA trigger and only 7 lbs of weight !
http://grabagun.com/mossberg-55111-500-slugster-24-flu.html
+
Mesa hydraulic stock kit
http://mesatactical.com/products/leo-telescoping-hydraulic-reco
这个配置又轻(7-8 lbs),又准(1-3 moa, up to 200 yards), 后坐基本可以忽
略(阻尼弹簧枪托),射速快(泵动),威力大 (12 ga sabot slugs)。
用来打鹿,打熊,兼顾防熊;或者作为露营防熊枪看起来都是很不错的。
e*f
发帖数: 1709
25
来自主题: GunsAndGears版 - suggestion for a shotgun
Moss 500, 590 or Remington 870
Better add the "Mesa Tactical LEO hydraulic Recoil Buffer stock", so that
even a teenager can comfortably shoot the 12 GA full house slugs or 00
buckshots.
http://www.gunworld.com/taming-the-tiger-some-innovative-ways-r
http://mesatactical.com/products/leo-telescoping-hydraulic-reco
r******k
发帖数: 97
26
来自主题: WaterWorld版 - 澳洲科学家发现黄金树
Gold growing on trees? Scientists find small deposits in gumleaves
Australian geochemists publish paper showing how trees act 'as a hydraulic
pump … drawing up water containing the gold'
Scientists from Australia’s national science agency, the Commonwealth
Scientific and Industrial Research Organisation (CSIRO), have proved that
the leaves of certain eucalyptus trees contain minute amounts of the
precious metal that have been naturally absorbed.
Eucalypts in the Kalgoorlie region of Western Aust... 阅读全帖
k****n
发帖数: 3803
27
来自主题: CivilEngineering版 - [合集] 刚刚得知被LAID OFF了。
☆─────────────────────────────────────☆
kingjy (kingjy) 于 (Mon Oct 1 17:13:55 2007) 提到:
中间有gap, 回国了几个礼拜,今天回去,被告知LAID OFF了。 之前一点信息都没给
。怪我没和他们contact。 现在
1)找个语言学校,不知道H1转F1容易吗?需不需要出境reenter?
2)赶紧找offer,若是找到了,transfer的时候要3 paychecks. 公司说配合transfer
,到时候Paycheck 时,该怎么操作呢?公司现在是每周pay。
在MD中部的一个小公司, 每张没法的。 现在大家有没有一些openning 可以推荐的。
做的事stormwater, hydraulic and hydrology方向的。water/wastewater 也知道, GIS学过。 晴天霹雳, 希望大家帮忙谢
谢。
☆─────────────────────────────────────☆
zucchini (浪迹天涯) 于 (Mon Oct 1 20:20:49 ... 阅读全帖
t***r
发帖数: 264
28
来自主题: CivilEngineering版 - free 1 PDH
https://vts.inxpo.com/scripts/Server.nxp?LASCmd=AI:4;F:QS!10100&ShowKey=
25223&AffilateData=CSBlast5.04
Date:5/12/2015
Time:12:00 PM CT / 1:00 PM ET
Duration:60 minutes
Abstract:
Join our webcast to learn about Bentley‘s latest subsurface utility
engineering (SUE) technology. Our SUE and subsurface utility design and
analysis capabilities extend the power of OpenRoads technology by including
a robust toolset for building intelligent 3D feature-based models of the
buried construction zone. These ... 阅读全帖
c******g
发帖数: 52
29
无论读博士还是硕士,相信大多数中国人到美国之后最终还是到企业界或工程界混的。
但辛辛苦苦做着论文搞着科研,毕业时却还是茫然,不知道自己今后的工作在哪?往往
自我感觉什么都可以做,但在招聘人眼中却是什么都不会。更别说提前给自己规划未来
的发展方向。
在此,我把个人的一些经验和感受分享一下。为了方便后来人对职位的寻找,也把各职
位常见的关键词举例如下。主要是我在几个大型招聘网站天天搜索的个人经验,肯定不
全面,但希望藉此抛砖引玉,大家多补充完善。让CESPN成为一个大家能彼此交流帮助
的地方。
从企业或环境咨询公司方面说起,水工程方面的工作大概如下:
1. 水厂或废水厂设计, 搜索关键词一般是water 或wastewater engineer
2. 管网设计,主要是泵站、管道,阀门等的设计,关键词既可以和上面1一样,也
可能是pump,hydraulic,pipe designer,water resource等。
3. 城市雨水规划,主要是高速公路或住宅小区的雨水引流工作。见过的招聘职位名
称有stormwater engineer,hydraulic/hydrolo
b*****f
发帖数: 50
30
来自主题: Environmental版 - HEC-RAS水文问题
i am sorry to say you have a very very wrong understanding of hec-ras and
manning equation. it will help if you learn some open channel hydraulics,
fluid mechanics, or environmental hydrodynamics from textbooks, not wiki
pages.
btw, to snowice, you're asking a hydraulics, not hydrology, question.
k*****a
发帖数: 1518
31
【 以下文字转载自 ApplyClub 讨论区 】
【 原文由 kangjia 所发表 】
有自己的组织就不一样了?
Civil的三大块,structural, hydraulics and geotechnics那个不是力学。
就如同mechanical的Design/solid, fluid/thermal and control都是力学一样。
不会有多少人参加讨论的,就如同现在的ME版。
我看还是设立一个mechanics版,这样mechanical, civil and aerospace
都可以参加讨论。关于socialization or networking,在这个mechanics版更好,
视野更开阔。比如做hydraulics的可以考虑到aerospace industry去做CFD,
做control可以了解hydro project's dam seismic design等等。
其实大家学的做的都是一样的,只是针对对象不同罢了。
l*****e
发帖数: 44
32
液压一般吧,purdue的那个marsha lab算是最牛逼的地方,不过估计你肯定进不去了.
液压基本上研发全在德国.hydraulic Phd在美国找工作不那么容易.反正rexroth等几个
德国大牌不在美国研发,只是在美国assembly.也许parker在美国有RD.也许可以去
mobile hydraulic如CAT,John Deere之类的地方RD.
大约就是这样了,液压在国内火,但是其实跟美国差很远,美国跟德国又差了一截.
还有一点是,液压基本都是做重工业或者军工基建项目,你没绿卡,找工作是很难的,找到
了都很难给你活儿干.
c***g
发帖数: 357
33
工作这么久,最有用的不是流体的NS方程,也不是固体的欧拉方程,而是hydraulics,
这个版上这么多吹自己多少引用,发多少篇论文的phd,一个pressure compensated
pump symbol放在他们眼前都不认识。反正做机械的一个是对自己公司产品的理解,一
个是对机械感官的理解,做designer不可怕,可怕的是平时不动脑子,engineer甩给你
什么你就按部就班的去做。要说什么知识最有用?那就是课堂学不到的知识,
hydraulics以及车间工人,油田工人平时对你说的那些呆在办公室,实验室学不到的经
验才是最宝贵的
k*****a
发帖数: 1518
34

有自己的组织就不一样了?
Civil的三大块,structural, hydraulics and geotechnics那个不是力学。
就如同mechanical的Design/solid, fluid/thermal and control都是力学一样。
不会有多少人参加讨论的,就如同现在的ME版。
我看还是设立一个mechanics版,这样mechanical, civil and aerospace
都可以参加讨论。关于socialization or networking,在这个mechanics版更好,
视野更开阔。比如做hydraulics的可以考虑到aerospace industry去做CFD,
做control可以了解hydro project's dam seismic design等等。
其实大家学的做的都是一样的,只是针对对象不同罢了。
y*******o
发帖数: 1713
35
来自主题: _Auto_Fans版 - 想自己换机油,有些问题请教。
千斤顶:
autozone的人说不推荐用车里自带的,用hydraulic的比较好。是这样么?hydraulic有
两种,一种是trolly的,一种是直桶型的,比trolley省空间,是不是也一样可以呢?
另外,需要两只jack stand么?
机油:
03年的camry能用mobil的sythnetic么?管15000miles那种。
Rubber washer:
manual上说每换机油都必须要换一只新washer,网上的一些diy则说如有损坏才需要。
这只washer在autozone有卖么?
Filter:
会用到dealer才有的特殊的工具才能把filter拿下来么?
回收:
是不是把放出来的机油盛在一个瓶子里,拿到autozone去回收?
另外,以前去dealer那里总会有一个小inspection,查查brake pad, fluids, air
filters,这些自己都可以查么?
我的车是03的camry, 58kmiles
谢谢
l*******n
发帖数: 46
36
来自主题: _Auto_Fans版 - 想自己换机油,有些问题请教。
hydraulic起得快,方便。原厂一样用。如果是hydraulic就一定要放stand。
油就见人见志了,个人意见代步车一般油就好,勤换可以顺便勤检查其它东西
washer如果是金属的检查就好,坏了就换。纸做的就一定换
filter的话,如果你是4缸camry,可以用filter cap socket wrench,用加长杆,那种
环状的扳手就用不了没位置。顺便建议你冷车换,因为filter就在排气出口下面,俺们
深受其害无数次了。。。
BFI可以回收机油(北加湾区),得管他们要专门的桶,很像1gallon牛奶桶,以前牛奶
桶都收,现在只收他们自己专门的桶了
inspection可以自己做,不过如果是20几块的可以在店里换,我还是回去店里,自己弄
麻烦不说,拆filter还得被烫,filter拆了油很容易流到地上,洗起来可麻烦了
i****x
发帖数: 17565
37
来自主题: _Auto_Fans版 - 电助力转向和路感反馈
不论是bmw m5还是porsche 911,只要是从hydraulic转为eps的电助力转向,评测里就
会说反馈不如以前,numb之类。电助力跟hydraulic原理上的什么区别决定了电助力路
感反馈不好?还是纯粹的调教经验不足?一个好的路面反馈到底应该是什么感觉的?我
听说的说法是前轮侧向load增大时反向力也随之增大,但当前轮抓地接近极限时反向力
会突然减小。难道eps不是这种感觉吗?
Z**R
发帖数: 1233
38
(2008-05-16 10:35am)
(新加坡讯)联合早报记者蔡永伟报道,新加坡民防部队在中国政府要求下,今天
早上派出一组55人的灾难拯救队伍到中国成都,以救助四川地震灾民。
救援队伍由民防部队第四民防团司令黄浩泉中校带领,携带了各种搜索器材,包括
光纤内窥镜(fibre-optic scopes)、生命探测仪器、液压切割器(hydraulic cutter
)、吊具(spreader)等,以协助当地政府搜寻与拯救,并给予灾民人道援助。
此外,训练有素的灾难拯救队伍也携带了四只搜救灵犬协助救灾。他们也携带了足
够的食物、燃料和配备,可在无需后勤支援下进行两个星期的拯救行动。
民防部队发言人今天说,拯救队伍会在四川当地逗留多久还未确定,必须视当地的
救灾情况而定。
他说:“如果有必要,我们会继续留下,或派更多人到中国协助救灾。”
这55人是民防海外任务“狮心行动”(Operation Lion Heart)的队员,他们在今
天上午11时15分从新加坡巴耶利峇空军基地乘搭空军的两架C130大力士运输机离开,飞
行时间约七小时。民防总监陈赞诚也亲自为他们送别。
根据民防部队的文告,“狮
w****a
发帖数: 1623
39
Water resource engineering, Hydraulic engineering are in Civil Engineering (
土木工程) department in the US. So they should have similar background.
As to Ph.D vs. M.S., it is a different story.

知道
x*********g
发帖数: 11508
40
http://www.wired.com/threatlevel/2010/10/fbi-tracking-device/
A California student got a visit from the FBI this week after he found a
secret GPS tracking device on his car, and a friend posted photos of it
online. The post prompted wide speculation about whether the device was real
, whether the young Arab-American was being targeted in a terrorism
investigation and what the authorities would do.
It took just 48 hours to find out: The device was real, the student was
being secretly tracked and ... 阅读全帖
x*********g
发帖数: 11508
41
哈哈,那贴讲的是这么个事情:
http://www.wired.com/threatlevel/2010/10/fbi-tracking-device/
Caught Spying on Student, FBI Demands GPS Tracker Back
* By Kim Zetter Email Author
* October 7, 2010 |
* 10:13 pm |
* Categories: Surveillance
*
A California student got a visit from the FBI this week after he found a
secret GPS tracking device on his car, and a friend posted photos of it
online. The post prompted wide speculation about whether the device was real
, whether the young Arab-American... 阅读全帖
y*****a
发帖数: 580
42
来自主题: Military版 - fuck! EPA allows 15% ethanol in gasoline
The primary misconcepts for biomass are: (1) they are greener; and (2) they
can lead the US out of energy dependency. Those are not true.
1. I agree that ethanol is renewable. But it does not mean it is cleaner
per NET BTU. It actually produces more CO2 than oil (oil is worse than
natural gas) per NET BTU (energy generated minus energy required to generate
that fuel).
2. Natural gas, although not renewable, is enough for more than 200 years of
global reserve. The US does not lack NG, and on ... 阅读全帖
a***c
发帖数: 2443
43
来自主题: Military版 - 飞行模拟器(游戏用)

http://www.youtube.com/watch?v=8bLwvoPD2Zg
http://www.youtube.com/watch?v=uVOhIezQ7Pc
http://www.youtube.com/watch?v=vFNn6hvhuMQ&feature=related
most people would be very satisfied with a 3DoF setup. You could build
one for a few grand with powerful linear actuators (for simulating
dogfights) with ~15cm of travel on each axis. If you just want to
simulate flying commercial, you could use servo motors instead, much
much cheaper. A full-blown 6DoF hydraulic setup is probably not
realistic for hom... 阅读全帖
b**********n
发帖数: 2812
44
G.E. to Share Jet Technology With China in New Joint Venture
By DAVID BARBOZA, CHRISTOPHER DREW and STEVE LOHR
This article was reported by David Barboza, Christopher Drew and Steve Lohr
and written by Mr. Lohr.
As China strives for leadership in the world’s most advanced industries, it
sees commercial jetliners — planes that may someday challenge the best
from Boeing and Airbus — as a top prize.
And no Western company has been more aggressive in helping China pursue that
dream than one of the a... 阅读全帖
a***h
发帖数: 1222
45
旧闻了。
hydraulic fracturing 已经应用好几年了。
w**********g
发帖数: 3158
46
好。美帝威武。

后再抽上来提纯。问题是抽上来的大约只有灌进去的一半,剩下的...全进地下水。
hydraulic fraction技术已经在六个州全面铺开,最近几年发展神速。
进大气。
退一步进两步。
l*********e
发帖数: 7492
47
非能动是passive的意思?
http://en.wikipedia.org/wiki/AP1000
估计说的是这个:
Passive Core Cooling SystemPower reactors of this general type continue to p
roduce heat from radioactive decay products even after the main reaction is
shut down, so it's necessary to remove this heat to avoid meltdown of the re
actor core and possible escape into the containment or, very unlikely, beyon
d the containment. In this design Westinghouse's Passive Core Cooling System
(PCCS) uses less than twenty explosively operated and D... 阅读全帖
a*****e
发帖数: 2503
48
来自主题: Military版 - 本次日本核电厂事故反思
我给你几个数字吧。冲你说的
"但30年之后,化石燃料接近枯竭,风能太阳能等是杯水车薪"
Yearly estimated potential of different renewable energies Total primary
energy consumption in 2005 = 15.18 TW
Technically feasible potential for alternative energy
Biomass 6-8 TW
Hydraulic 1.6 TW
Geothermal 11.6 TW
Wind 2 TW
Solar 60 TW
Ocean No data
Total 85 TW (approximately)
Current economic potential
No data
Biomass 0.8 TW
Geothermal 0.6 TW
Wind 0.6 TW
Solar ... 阅读全帖
l********k
发帖数: 14844
49
hydraulic fracturing!!!!
a****1
发帖数: 654
50
Mon Apr 18, 9:10 am ET
Report: Natural gas drillers injected tons of carcinogenic chemicals into
wells
By Brett Michael Dykes
The New York Times' Ian Urbina reported over the weekend that, according to
a report released by three House Democrats--Representatives Henry A. Waxman
of California, Edward J. Markey of Massachusetts and Diana DeGette of
Colorado--natural gas drillers injected hundreds of millions of gallons of
29 known carcinogens into the ground in 13 states while fracking for gas.
Rep... 阅读全帖
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