c*******2
发帖数: 235 | 1 ********************************************************
The Department of Hydraulic Engineering at the Zhejiang University invites
applicants for several positions in hydrology, hydraulics, and water
resources. All positions are tenure-track positions at the assistant
professor level. However, for exceptional cases, more senior positions may
be considered.
Candidates should have a doctoral degree and at least 1 year of postdoctoral
research experience in hydrology, hydraulics, geomorphology, wa... 阅读全帖 |
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m********u
发帖数: 3942 | 2 【 以下文字转载自 Engineering 讨论区 】
发信人: missingyou (miss), 信区: Engineering
标 题: 【工作机会】Senior Hydraulics Engineer
发信站: BBS 未名空间站 (Wed May 3 21:55:37 2017, 美东)
Senior Hydraulics Engineer, Dishwasher Products
Louisville, KY
有兴趣的同学站内或者发邮件联系 [email protected]/* */
Responsibilities:
Responsible for R&D activities related to dishwasher hydraulics system
technologies, focused on delivering performance which meets the needs of the
consumer
Feature development and the associated system integration of di... 阅读全帖 |
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m********u
发帖数: 3942 | 3 Senior Hydraulics Engineer, Dishwasher Products
Louisville, KY
有兴趣的同学站内或者发邮件联系 [email protected]/* */
Responsibilities:
Responsible for R&D activities related to dishwasher hydraulics system
technologies, focused on delivering performance which meets the needs of the
consumer
Feature development and the associated system integration of dishwasher
hydralics systems.
Assure that the product specification(s) contain adequate information to
guide R&D activities in the US and China in order to... 阅读全帖 |
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m********u
发帖数: 3942 | 4 Senior Hydraulics Engineer, Dishwasher Products
Louisville, KY
有兴趣的同学站内或者发邮件联系 [email protected]/* */
Responsibilities:
Responsible for R&D activities related to dishwasher hydraulics system
technologies, focused on delivering performance which meets the needs of the
consumer
Feature development and the associated system integration of dishwasher
hydralics systems.
Assure that the product specification(s) contain adequate information to
guide R&D activities in the US and China in order to... 阅读全帖 |
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h*********r
发帖数: 1940 | 5 这个和上游的水位情况也有关吧。
不知道你用过culvert master, stormcad 没有，StormCAD可以产生hydraulic profile
,你就能看到hydraulic grade line的情况了。 |
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m********u
发帖数: 3942 | 6 Senior Hydraulics Engineer, Dishwasher Products
Louisville, KY
有兴趣的同学站内或者发邮件联系 [email protected]/* */
Responsibilities:
Responsible for R&D activities related to dishwasher hydraulics system
technologies, focused on delivering performance which meets the needs of the
consumer
Feature development and the associated system integration of dishwasher
hydralics systems.
Assure that the product specification(s) contain adequate information to
guide R&D activities in the US and China in order to... 阅读全帖 |
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f**h
发帖数: 54 | 8 hydraulics不是流体力学.你不要搞混了.
hydraulics是流体力学最基本的应用,同时有它自己的一套东东-因为工程实践的需要. |
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p*****u
发帖数: 21812 | 9 不是说不用GIS,而是为何用hydraulic modeling的插件和GIS结合做C&C 分析,我们做的
Baltimore市的项目,C&C的分析是用GIS做的,但是不是和hydraulic modeling的软件结合
(市政府的却提供了一个tool,但是我不做这个分析,没留意过). |
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m********u
发帖数: 3942 | 10 Senior Hydraulics Engineer, Dishwasher Products
Louisville, KY
有兴趣的同学站内或者发邮件联系 [email protected]/* */
Responsibilities:
Responsible for R&D activities related to dishwasher hydraulics system
technologies, focused on delivering performance which meets the needs of the
consumer
Feature development and the associated system integration of dishwasher
hydralics systems.
Assure that the product specification(s) contain adequate information to
guide R&D activities in the US and China in order to... 阅读全帖 |
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q*****z
发帖数: 191 | 12 08年的honda odyssey.去dealer fix recall的时候被告知一个engine hydraulic
mount leak，labor+parts要将近600。大家有经验吗，是不是必须修的? 600是不是太
贵了？谢谢！ |
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发帖数: 1 | 14 申绿卡需要攒审稿，hydrology, hydraulics, numerical methods, surface/
subsurface flow.
可以站内联系，谢谢！ |
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发帖数: 1 | 15 顶！同求：CFD，hydraulics, coastal/ocean engineering/modeling, nearshore
processes
站内联系，多多益善。多谢多谢！ |
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l********u
发帖数: 823 | 16 我国内本科学hydraulics，是地面水，后来在这儿硕士学hydrology，是地下水。好像
用起来没大区别似的，原理，计算方法等等，看起来类似，虽然应用对象不一样。
不过这方面我很门外汉，只是上些课，仅此而已。谁多说说？ |
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f****r
发帖数: 538 | 17 hydrology和力学无关
hydraulics主要是力学 |
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m*l
发帖数: 507 | 18 Wow, very nice conversion from the book. It is the human view of the
question. :)
Although it doesn't help me at all in terms of understanding the difference.
It does sound like a matter of labeling yourself as a scientist or engineer.
Thanks and google book search is really cool.
http://books.google.com/books?id=30vxRnpPWsMC&pg=PA56&lpg=PA56&dq=What+is+th
e+difference+between+HYDROLOGY+and+HYDRAULICS&source=bl&ots=rpHKAKaVp2&sig=p
LzLQ2V6BPvjqoaYSU25DTGkmOQ#PPA56,M1 |
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f**h
发帖数: 54 | 19 这么说吧，hydraulics研究的是hydrology的输出。 |
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j*w
发帖数: 60 | 20 To simplify it. In hydrology study, your general goal is to find the peak
discharge rate. While in hydraulic study, your goal is to find out flow
velocities, flow depths, flow area, and so on. |
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t*******y
发帖数: 637 | 21 hydrology主要是研究降雨 地表径流 流域的 东西 有点统计的味道
hydraulics归根到底是力学 a kind of mechanics |
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f**h
发帖数: 54 | 22 hydrology黑箱模型不少,
比如那个 unit hydrograph,就是个黑箱模型.
hydraulics理论上要成熟多了. |
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d*********y
发帖数: 748 | 23 hydraulics 由于是流体力学，比hydrology难得多。 |
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d*********y
发帖数: 748 | 24 hydraulics 也要用到统计。看看紊流那个部分就知道了。 |
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f**h
发帖数: 54 | 25 hydrology才难.你无法定量精确描述它.比如降雨,还是靠统计的方法和经验,历史规律什
么的.
而hydraulics基本上可以用数学力学描述,顶多搞不明白的地方用几个系数什么的代替一
下,但就是这样,还是比hydrology成熟. |
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d*********y
发帖数: 748 | 26 Hydrology 唯一的难点就是随机水文学，但并不是所有Hydrology PHD都读这一方向的
。我看到有人就靠GIS混毕业的。如果你觉得流体力学不难，那我无话可说。就NS方程
到现在也没有理论解，更别说各种数值算法的发展，泥沙，紊流部分。你要是身边没有
搞hydraulics,问问学机械和航空的就知道了。 |
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d*********y
发帖数: 748 | 27 统计很难吗？问问学数学的，什么研究方向最简单，就是统计。
你说的降雨难点，归根到底是测量方法的落后。其实hydraulics 也有很多测量的难点。
律什
替一 |
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d*********y
发帖数: 748 | 28 那什么方向不是流体力学的基本应用？ 你以为搞hydraulics的人不搞基础研究。 |
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f**h
发帖数: 54 | 29 你这是抬杠.你承认不承认hydraulics不是流体力学? |
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b*****f
发帖数: 50 | 30 i'd say...
hydrology is more of science, e.g. come-and-go of water after rainfall.
hydraulics is more in engineering, e.g. momentum and energy of fluids in
machinery...
haha ... |
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w****a
发帖数: 1623 | 31 Hydrology
Hydraulic
Hydrodynamic |
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m********r
发帖数: 2895 | 32 请问ArcGIS下面用Hydraulic Modeling的插件哪个比较好啊。
我想试试用GIS做condition and criticality的分析。谢谢先 |
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p*****u
发帖数: 21812 | 33 不是做GIS的,不懂为何要用Hydraulic modeling的插件做C&C
我倒是可以帮你问问我们做GIS的老美
另外.通常也应该是市/郡政府(看样子你做的是政府项目)提供这样的tool和GIS结合做C
&C的分析 |
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p*****u
发帖数: 21812 | 34 我觉得他说得make sense,虽然C&C的分析( 作为asset management的一部分)
多数时候可能不需要hydraulic modeling 的output来作为input,但可能也有例外
譬如,如果市政府决定2年design storm下,manhole如果surcharge超过3米(或者N米以至
于有可能引起house basement backup的话),这些manhole比起其他的manhole(surchage
低于3米或责根本不surcharge)在这方面给予的 criticality 就应当高些.这个是污水
的例子.LZ做的市给水,可能有相识的情况. 很明显,哪些 manhole surchage会超过3米,
要依靠运行model.可以modeler将数据直接给GIS的人(access,或者简单的excel表),或者
GIS和模型软件的结合(直接获取结果). |
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j******w
发帖数: 559 | 35 【 以下文字转载自 Automobile 讨论区 】
发信人: joyosnow (snow), 信区: Automobile
标 题: 怎么 brake hydraulic system bleeding
发信站: BBS 未名空间站 (Sun Jul 4 00:37:52 2010, 美东)
看到的程序：
先打开一点bleed valve，之后踩下刹车，保持住，打开bleeder valve，让刹车液和空
气排出来，再关闭valve，松刹车
之后重复踩刹车，开valve的过程，松刹车，直到没有空气出来。
请问有什么要注意的，和特别的地方？
2002 VW PASSAT 1.8T.
谢谢！ |
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w*******y
发帖数: 60932 | 36 Sears
Craftsman Hydraulic Stool
$69.99 - $30 Instant Savings
= $39.99 with free store pickup
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s*****i
发帖数: 5548 | 40 ☆─────────────────────────────────────☆
xie91 (bob) 于 (Mon Mar 4 19:12:18 2013, 美东) 提到:
发信人: kylin1996 (kylin), 信区: SanFrancisco
标 题: Re: 再谈德州经验 (转载)
发信站: BBS 未名空间站 (Mon Mar 4 17:16:16 2013, 美东)
看见有人说湾区收入高就笑了，给你们科普一下，猴子屯，13-15w年薪非常普通，20w
以上的一大把，加上公司100% match 6-12% 401k， 公司服务到退休有一次性上百万的
pension，还有一周工作四天一周工作五天，每年5周vacation，加州风景再美，这些能
比吗？
☆─────────────────────────────────────☆
delubo (I shall be your eyes!) 于 (Mon Mar 4 19:13:42 2013, 美东) 提到:
求介绍工作，我要跳槽
☆────────────────────────────... 阅读全帖 |
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f*******y
发帖数: 8358 | 41 科普darcy law
https://bae.okstate.edu/faculty-sites/Darcy/DarcyWeisbach/Darcy-
WeisbachHistory.htm
Henry Darcy and His Law
The History of the Darcy-Weisbach Equation
Glenn Brown
Oklahoma State University
6/7/00
revised 2/21/02
Back to Henry Darcy Main Page
What we call the Darcy-Weisbach equation has had a long history of
development. It is named after two of the great hydraulic engineers of the
middle 19th century, but others have also played a major role. Julies
Weisbach (1806-1871) a native of ... 阅读全帖 |
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g*******x
发帖数: 2158 | 42 最后加一点
With TZ1/ACT-4 (Active Torque Split) 4-Speed Automatic Transmission:
Proactive automatic all wheel drive with 90/10 torque split front-to-rear
under normal conditions (80/20 from 1996; 60/40 on Subaru Forester from 2009
and on ). Electronically controlled hydraulic multi-plate transfer clutch
installed instead of the center differential in the transaxle's tailshaft.
Sensors monitor parameters such as wheel slippage, throttle position and
braking, to help determine needed torque distributio... 阅读全帖 |
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J*******3
发帖数: 1651 | 43 丰田2013年6月6日公开了预计将于年内作为2014年款投放市场的新一代“卡罗拉”（北
美版）的概要，价格及详细性能指标将在临近上市时发布。
这是第11代卡罗拉，为了吸引更年轻的用户而非维持以往用户，继“Avalon”
及“RAV4”之后，丰田再次采用了个性强烈的外观设计。前脸以较扁的前大灯以及下部
带大开口的保险杠等为特点，并搭配大幅膨出的翼子板以及向后平缓下滑的C柱。
新款卡罗拉的外形尺寸为长4639×宽1776×高1455mm，与上代车型相比车长增
加99mm，车宽扩大16mm，但车高降低10mm。轴距为2700mm，比上代车型长100mm。由于
轴距更长，因此后座臀点后移了75mm，另外还通过减薄前座靠背，使后座乘坐空间变得
宽敞。
图2：“LE Eco”的后视图 （点击放大）
图3：侧视图 （点击放大）
图4：LE Eco的内装 （点击放大）
图5：S的内装 （点击放大）
新一代卡罗拉设有“L”、“LE”、“S”和“LE Eco”四种级别。前三个级别
的款... 阅读全帖 |
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D****R
发帖数: 6053 | 44 求8本电子书,每本1000伪币, 请PM我，如果你找到任何一本电子书,在此先感谢.
History of Shock Waves, Explosions and Impact: A Chronological and ...
By Peter O. K. Krehl
Wave Propagation in Fluids: Models and Numerical Techniques
By Vincent Guinot
Hydraulic Power System Analysis
By Arthur Akers, Max Gassman, Richard Smith
Hydraulics of Pipeline Systems
By Bruce E. Larock, Roland W. Jeppson, Gary Z. Watters
Hydraulics of Pipelines: Pumps, Valves, Cavitation, Transients
By J. Paul Tullis
Hydraulic Control Systems
By Herbert E. Merri... 阅读全帖 |
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a*******m
发帖数: 14194 | 45 Hydraulic fracturing
http://en.wikipedia.org/wiki/Hydraulic_fracturing
Proponents of hydraulic fracturing point to the economic benefits from the
vast amounts of formerly inaccessible hydrocarbons the process can extract.[
6][7] Opponents of hydraulic fracturing point to environmental risks,
including contamination of ground water, depletion of fresh water,
contamination of the air, noise pollution, the migration of gases and
hydraulic fracturing chemicals to the surface, surface contamination f... 阅读全帖 |
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b*****t
发帖数: 840 | 46
二货又出来丢人现眼，几巴掌还你这傻二还没吃够，丫二货还狂吠吃屎？
我老跟你这二货说hydraulics，你这二货说planetary gear，我老说planetary gear，你
这二货就扯DCT，无知煞笔到极点，
尼玛就让你德国主子喂你几口屎你就开心了
http://www.volkswagen.co.uk/technology/transmissions-and-drivet
Mechatronics - electronics and mechanics in one unit
Clutches and gearbox units are operated hydraulically by the gearbox
mechatronics (a combination of mechanics and electronics) housed in the DSG.
The electronic transmission control unit, sensors and hydraulic control
unit form one compact unit.
The co... 阅读全帖 |
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l****0
发帖数: 370 | 47 今天把车送去gregs Japanese Auto 去修drive belt 和power steering flud flushed
, 一个小时后接到电话说The technician working on your car has found the
hydraulic tensioner for your external accessory drive belt to be leaking
hydraulic oil. He recommends replacing this hydraulic tensioner today with
your drive belt replacement. Replacing the drive belt hydraulic tensioner
would add $238.00+tax/disposal. He also found the timing chain tensioner to
be leaking engine oil, he recommends replacing this leaking timing chain |
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f*b
发帖数: 91 | 48 hydraulic还是mechanical disc brakes，这两天让我痛苦地拿不定主意。我喜欢
mechanical的简单，但听说平时需要经常调节。hydraulic如果不出问题就很好，一旦
出问题我都不知如何下手。最后还是选了Shimano XT hydraulic。用户评价不错，价格
也不比BB7贵多少。大家用hydraulic的是不是满意？多长时间需要bleeding一次？ |
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j***o
发帖数: 5096 | 49 不同意，看官方连接，EPA调查此事是high priority，
http://www2.epa.gov/hfstudy
At the request of Congress, EPA is conducting a study to better understand
any potential impacts of hydraulic fracturing on drinking water resources.
The scope of the research includes the full lifespan of water in hydraulic
fracturing. The progress report was released in December 2012 and a draft
report is expected to be released for public comment and peer review in 2014.
你明白啥叫peer review吗？EPA的peer review来自兄弟agency和各大高校，你觉得他
们全被收买我就... 阅读全帖 |
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T**********e
发帖数: 29576 | 50
一级就点火几分钟吧。spacex f9 火箭价格54m，燃料才20w，主要成本在一级上，能重
用大大降低成本。
这次一级降到浮台上但速度没掌握好，Musk说是fin的液压耗尽了，下次要改进。
Grid fins worked extremely well from hypersonic velocity to subsonic, but
ran out of hydraulic fluid right before landing.
Upcoming flight already has 50% more hydraulic fluid, so should have plenty
of margin for landing attempt next month.
Hydraulics are usually closed, but that adds mass vs short acting open
systems. F9 fins only work for 4 mins. We were ~10% off. |
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