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发帖数: 1 | 2 Visiting scholars set up party branch at UC Davis
“help overseas Chinese scholars avoid negative mind corrosion from being
subjected to the news environment abroad”
by [email protected]
China’s Communist Party briefly had a chapter at a California university
By Echo Huang
Seven Chinese scholars visiting the University of California, Davis, set up
a local chapter of China’s Communist Party to guard against the “corrosion
” of western ideas—only to realize they had set up a potentially illega... 阅读全帖 |
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F**9
发帖数: 56 | 3 Any one interested, please email me.
review opportunity. Journal: Corrosion Science
ABSTRACT:
The possibility of using newly synthesize N,N?-bis(4-hydroxybenzaldehyde)-1
,2-cyclohexan diimine (4-HBC) Schiff base as a corrosion inhibitor of API 5L
steel in 1 M HCl solution was investigated by polarization curves, AC
impedance measurements, current transient and SEM and AFM techniques. It
was shown that the inhibition effectiveness increases with an increase in
the concentration of 4-HBC and a de... 阅读全帖 |
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C****0
发帖数: 1118 | 4 休斯顿一家小公司招人，需要 Corrosion Chemist/Specialist。不太清楚能不能给办
签证。
有兴趣的站内。
补充一些，公司属于chemical supplier。需要有一些corrosion test的经验，至少得
有corrosion chemistry这方面的背景。有其他oil field chemicals经验的更好，因为
小公司每个人都要同时作很多事。签证的事再去问问。 |
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n**m
发帖数: 113 | 5 【 以下文字转载自 Chemistry 讨论区 】
发信人: noom (moonboy), 信区: Chemistry
标 题: Fuel cell or Corrosion!
发信站: BBS 未名空间站 (Mon Jan 7 13:00:55 2008)
现在刚进化工系读phd，以前小弟master材料化学，现在新老板问我想研究corrosion还
是fuel cell，我们这里产石油corrosion 特别好找工作，可是不知道4年后形式怎么样？
自己一直研究能源方面（本科lithium-ion battery,master电极材料）所以对fuel
cell挺感兴趣的，觉得以后能源方面有前景，也符合自己研究的一贯性！
其实我以前也是天天混没真心好好搞过科研，不过现在来了新学校想好好努力一下，听
说fuel cell现在成本上有瓶颈，所以离应用还挺有距离，而且在我们这里fuel cell不
是很好找工作，但是fuel cell好出文章，还听说我们组fuel cell在canada还算很不错
的（可能数前一二吧，听师兄说的），所以挺矛盾！
特别想听听大家的意见，特别是对这两个方向 |
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n**m
发帖数: 113 | 6 【 以下文字转载自 Chemistry 讨论区 】
发信人: noom (moonboy), 信区: Chemistry
标 题: Fuel cell or Corrosion!
发信站: BBS 未名空间站 (Mon Jan 7 13:00:55 2008)
现在刚进化工系读phd，以前小弟master材料化学，现在新老板问我想研究corrosion还
是fuel cell，我们这里产石油corrosion 特别好找工作，可是不知道4年后形式怎么样？
自己一直研究能源方面（本科lithium-ion battery,master电极材料）所以对fuel
cell挺感兴趣的，觉得以后能源方面有前景，也符合自己研究的一贯性！
其实我以前也是天天混没真心好好搞过科研，不过现在来了新学校想好好努力一下，听
说fuel cell现在成本上有瓶颈，所以离应用还挺有距离，而且在我们这里fuel cell不
是很好找工作，但是fuel cell好出文章，还听说我们组fuel cell在canada还算很不错
的（可能数前一二吧，听师兄说的），所以挺矛盾！
特别想听听大家的意见，特别是对这两个方向 |
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f****t
发帖数: 15913 | 7 I made a bath tube for my ak using 6" PVC tube and an end cap. After
shooting corrosive
ammo, I pour hot water and windex in the tube.. Then I soak my ak for 10
minutes. After that, rinse it clean with a garden hose and let it dry. It
is that easy and I never had any issues with corrosive ammo. |
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n*******1
发帖数: 2254 | 8 I am working in the field of corrosion. A lot of my colleagues work in the
field of oil ang gas industries and make big money in texas.
Don't worry about the running out of oil in 50 years crap. Even it's like
that you will already retire by that time and gas will still last for more
than 100 years, not to mention the coming new biofuel oil.
Meanwhile, fuel cell is nothing compared with corrosion in terms of job
hunting. Personally, I don't think fuel cell will have a bright future.
样？ |
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w*******y
发帖数: 60932 | 9 This is currently the cheapest price for Non Corrosive 7.62X39 ammo out
there. I've looked and looked and have been waiting for months for a " seems
its not to be. So I've gone with this the best current price. With the
rising costs of metals and the devaluing of the dollar(affects buying ammo
made overseas) this might be the best price for awhile. In a sealed spam can
which is a plus(unless you open it up to find some rocks inside instead of
ammo)
"Special Purchase at this price, equal to $196.... 阅读全帖 |
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n*******t
发帖数: 1296 | 10 电池正极总有蓝绿色的corrosion.越来越多，铲掉后又会长。负极相对干净，怎么回事
？Dealer说我的电池要换了，给我看了一个可能是load tester测的结果，我的电池大
概在满格的1/4左右。这种情况需要换电池吗？ |
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C**********r
发帖数: 45 | 11 关键词：Corrosion，mechanical performance
站内联系，发一段自我介绍。 |
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p**x
发帖数: 6614 | 12 .223或者.308的
我需要买一些corrosive的子弹来做实验…… |
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h*********r
发帖数: 1943 | 13 223不知道，308有些老的Milsurplus应该有Corrosive Primer |
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d********O
发帖数: 1196 | 15 Article title: Sodium molybdate for the effective protection of steel: a
comprehensive review
Author: Kumari, V. A. Sreevalsan, K. Shibli, S. M. A.
Journal title: CORROSION PREVENTION AND CONTROL
Bibliographic details: 2001, VOL 48; PART 3, pages 83-96
Thanks a lot!!! |
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b******o
发帖数: 5644 | 16 Knife Steels Steel Type Characteristics Approximate Rockwell
Hardness
10A also referred to as AUS-10. 60
17-7 PH Good corrosion resistance, excellent for water sports
applications. This alloy is a chromium-nickel-aluminum precipitation
hardening stainless steel with good edge retention. Great corrosion
resistance generally means a high chromium content, and this means knives
made with this steel will be a little harder to sharpen than blades with a
lower chromium content.... 阅读全帖 |
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S*A
发帖数: 7142 | 17 还是回到如何鉴别得问题啊。
我看了，基本上三档次， 316 最好，但是也没有正式得规范只有
316 可以用在食物处理上。
一般来说 316 》 304 》 430
然后光滑得表面比不光滑得表面好。
关于腐蚀部分，一般还是酸性物质。
所以我想如果自己要测试得话可以用硝酸看看能不能
和不锈钢反应。记得带口罩，硝酸烟吸入有危害。
关键测试还是抗腐蚀性。
抗腐蚀性越高，被认为越安全。至于铬什么得，不锈钢几乎
都有，就是比例不同而已。
Stainless steels used in food processing
Most containers, pipework and food contact equipment in stainless steels is
manufactured from either 304 or 316 type austenitic stainless steels.
The 17% chromium ferritic stainless steel (430 type) is also used widely for
such applications a... 阅读全帖 |
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s*****i
发帖数: 5548 | 18 ☆─────────────────────────────────────☆
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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O*******d
发帖数: 20343 | 19 铜和阳极铝根本不在考虑之列。
Despite the great numbers of metals and alloys known to man, remarkably few
warrant even preliminary consideration for uses as implant materials. The
relatively corrosive environment combined with the poor tolerance of the
body to even minute concentrations of most metallic corrosion products
eliminates from discussion most metallic materials. Of the possible metallic
candidates, tantalum and the noble metals do not have suitable mechanical
properties for the construction of most ... 阅读全帖 |
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b****h
发帖数: 274 | 20 ECU: Engine Control Unit
Subaru recall email:
Dear Subaru Owner:
This notice is sent to you in accordance with the National Traffic and Motor
Vehicle Safety Act.
SUBARU OF AMERICA, INC. has decided that a defect, which relates to motor
vehicle safety, exists in some 2009-2013 Subaru Forester models, some 2008-
2011 model year Subaru Impreza, WRX, and STI vehicles, and in some 2012-2014
model year Subaru Impreza WRX and STI vehicles currently or formerly
registered in at least one of the followin... 阅读全帖 |
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f****t
发帖数: 15913 | 21 丰田入主后，subaru recall明显增加
****************************
Subaru Recalls
Has your vehicle been recalled? Search our complete Subaru recall list for
the latest updates and safety reports on your vehicle. Visit SaferCar.gov to
report problems with your vehicle, non-original vehicle equipment, tires or
car seats. Your complaint information will be entered in the National
Highway Traffic Safety Administration's vehicle owner complaint database and
used with other complaints to determine if there is a saf... 阅读全帖 |
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m***j
发帖数: 533 | 22 无论何时，一定记住，Walmart等地卖的coolant上面说可以和任何coolant mix的那话
都是蒙人的。任何时候不要乱mix coolant除非你确定这样mix 是可以的。
关于coolant base：常见的coolant是乙二醇（ethylene glycol）基的，也有一些用丙
二醇（propylene glycol）的，现在新技术还有别的。要记住的是如果base不一样是绝
对严禁混的。不过这个问题倒是不用太担心至少常见车的冷却液都是乙二醇基的。
最tricky的问题是corrosive inhibitor。老coolant里常用的corrosive inhibitor有
硼酸盐（borate），硝酸盐（nitrate）, 亚硝酸盐（nitrite）, 磷酸盐（phosphate
）, 钼酸盐（molybdate）和硅酸盐（silicate）。
现在新的coolant基本上开始用一些有机酸（organic acid）作为corrosive inhibitor
了，这样coolant的寿命更长。OAT比较少，更多的是HOAT（hybrid organic acid
tec... 阅读全帖 |
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s*****u
发帖数: 371 | 23 湾区的房子，08年曾经交易过，当时做过foundation inspection，说在车库右边的墙
壁上有裂痕然后修复了
STRUCTURAL FAILURE: The perimeter foundation has a horizontal crack in it
that is approximately seven-foot in length and about a quarter of an inch in
width. The crack is located along the right side wall(facing the house) of
the garage at the main garage door opening. This crack is not the result of
settlement, but of steel corrosion (rust). The steel corrosion has caused
expansive forces to develop within the concrete, leading to a t... 阅读全帖 |
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f******u
发帖数: 767 | 24 Corrosive Primer Redux By M.E. Podany, ALGC
With the resurgence of interest in Garand and Springfield shooting and
the availability of vintage .30-06 ammunition from the CMP, questions
are being asked as to how to tell which ammunition is corrosive and
which is non-corrosive. A lot of hearsay information and poor copies of
tables of arsenal production are in circulation. An article originally
published in the January 1961 issue of American Rifleman discussed the
evolution of non-corrosive primer |
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f*********n
发帖数: 11154 | 25 http://www.ammoland.com/2010/10/13/surplus-ammunition/
The term “surplus” simply means an over supply; yet when used in
conjunction with militaria or pretty much anything to do with the
military, it often evokes used equipment or to some a substandard
product.
This most certainly isn’t the norm when discussing surplus ammunition,
and in fact, a lot of military ammo could be considered far superior to
the commercial grade ammo in the same calibers.
...
Today surplus ammo comes in many shapes, siz... 阅读全帖 |
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q**x
发帖数: 1636 | 27 Material Safety Data Sheet
Sulfuric Acid
ACC# 22350
Section 1 - Chemical Product and Company Identification
MSDS Name: Sulfuric Acid
Catalog Numbers: S71211SC, S71826, S79200, S80213, S80213-1, A298 212,
A298212, A300 212, A300 225LB, A300 500, A300 612GAL, A300 700LB, A300212,
A300225LB, A300500, A300612GAL, A300700LB, A300C 212, A300C212, A300C212001,
A300C212002, A300C212003, A300C212004, A300C212005, A300C212006,
A300C212007, A300C212008, A300C212009, A300C212010, A300C212LC, A300FP 500,
A30... 阅读全帖 |
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q**x
发帖数: 1636 | 28 Material Safety Data Sheet
Sulfuric Acid
ACC# 22350
Section 1 - Chemical Product and Company Identification
MSDS Name: Sulfuric Acid
Catalog Numbers: S71211SC, S71826, S79200, S80213, S80213-1, A298 212,
A298212, A300 212, A300 225LB, A300 500, A300 612GAL, A300 700LB, A300212,
A300225LB, A300500, A300612GAL, A300700LB, A300C 212, A300C212, A300C212001,
A300C212002, A300C212003, A300C212004, A300C212005, A300C212006,
A300C212007, A300C212008, A300C212009, A300C212010, A300C212LC, A300FP 500,
A30... 阅读全帖 |
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w********h
发帖数: 12367 | 29 Rank Full Journal Title Journal Impact Factor
1 CHEMICAL REVIEWS 45.661
2 NATURE MATERIALS 36.425
3 Nature Nanotechnology 33.265
4 CHEMICAL SOCIETY REVIEWS 30.425
5 PROGRESS IN MATERIALS SCIENCE 25.870
6 ACCOUNTS OF CHEMICAL RESEARCH 24.348
7 Nature Chemistry 23.297
8 Nano Today 18.432
9 Annual Review of Materials Research 15.629
10 Energy & Environmental Science 15.490
11 ADVANCED MATERIALS 15.409
12 Advanced Energy Mate... 阅读全帖 |
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D**d
发帖数: 1186 | 30 Wallboard Woes
Odors and corrosion raise concern over drywall imported from China
Bethany Halford
THERE'S SOME curious chemistry going on within walls of homes across the
southeastern U.S. Complaining of foul odors, rampant copper corrosion, and
respiratory problems, homeowners are raising a stink about the latest
suspicious import from China—drywall.
Dark Mark Black corrosion forms on a copper air conditioner coil in a house
in Florida built with Chinese drywall that emits sulfurous gases. Zuma |
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S***i
发帖数: 289 | 31 SRB's had a few issues that resulted in their not being all that reusable in
any real sense.
One of the biggest was splashdown. Splashdown itself is hard on the
hardware in even the best of circumstances and most space vehicles that
splash down take some amount of damage on impact. But even if the vehicle
safely splashes down and all is well with the hardware, sea water is
corrosive, particularly to delicate components. These two factors are why
Blue Origin and SpaceX are both looking at pro... 阅读全帖 |
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O*********h
发帖数: 4674 | 32 一大早再家里吧ant baits放好，烤了点面包和sausage 当早饭，然后带上lp，开着她
的mini，迎着朝阳去Acura的dealer了
dealer那里居然有6辆，也是附近最大的dealer，要看的exactly那辆还没ready，就懒
得谈价格，找了个很接近的试了试，湾区还有一个成色很好的，就不着急
车子还比较新，现在39k mile，隔音不错，变速箱不知道是不是有点问题，挂D档，
idle的时候有抖动，挂N就不抖了，之前开的几辆MDX没这个问题。
车子看起来还行，算是比较responsive，舒适和sport比较平衡，发动机还算给力吧，
基本2000转左右就很有力了，声音不过3000算还行，3000以上会比较响，但是不算难听
70mph时候大概2500转不到
整体做工还行，但是塑料感太强，尤其是那个里面的门把手，太难受了， 跟mini的手
感差两条街
车子给我最大的感觉就是中庸，没什么不好，也没什么特别吸引我的。开起来跟新的
touareg差不多，要稍微软一点点
几个重要的不满
1. 变速箱d档idle抖动，貌似是个例
2. 塑料感，弥漫整个车子
3. 空调fan 设到l... 阅读全帖 |
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a******o
发帖数: 16625 | 33 DOT5的新型刹车油10年换一次足够了
Some manufacturers still recommend changing brake fluid every two years,
some have moved to three- or five-year intervals, and others, as you’ve
noticed, have removed the recommendation for periodic flushing and refilling
from their maintenance schedules.
Brake fluid transfers force to the various components of the braking system
when the brake pedal is depressed, so you’re right to be concerned about
proper maintenance.
A friend recalls his older brother, circa 1977, cursing... 阅读全帖 |
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A********h
发帖数: 2789 | 34 Chrysler recalling 870,000 SUVs for brake defect
Chrysler is recalling nearly 870,000 SUVs because corrosion may make the
vehicles' brakes harder to use.
Article by: Associated Press
Updated: April 2, 2014 - 7:15 AM
DETROIT — Chrysler is recalling nearly 870,000 SUVs because corrosion may
make the vehicles' brakes harder to use.
Jeep Grand Cherokee and Dodge Durango SUVs from the 2011 through 2014 model
years are involved.
Chrysler says crimp joints in the brake boosters can corrode if they're
e... 阅读全帖 |
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p**********g
发帖数: 9558 | 35 其实买80 teeth就对了
The Diablo 10 in. x 90 Tooth Ultimate Flawless Finish Circular Saw Blade
features Perma shield nonstick coating to help protect the blade from heat,
gumming and corrosion. Precision shear point helps provide flawless finishes
. 90 Teeth. For cutting wood.
For use with miter or table saws
Carbide construction
Ultra-thin kerf design for easy cuts
Shear-face grind design delivers effortless cuts with a reduced amp draw
on tools for less material waste and to help maximize... 阅读全帖 |
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y********g
发帖数: 598 | 36 再贴段科普文章：
But the main point of my posting is to help people understand all the issues
about stainless steel rusting or not rusting. This is a great FAQ from
Specialty Steel Industry of North America.:
---------------
1. What makes stainless steel stainless?
Answer: Stainless steel must contain at least 10.5 % chromium. It is this
element that reacts with the oxygen in the air to form a complex chrome-
oxide surface layer that is invisible but strong enough to prevent further
oxygen from "stainin... 阅读全帖 |
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d********e
发帖数: 2221 | 38 several kinds
Aguila 9mm 124 Gr FMJ 1000 RdsAguila .9mm Luger, 124 Grain FMJ, Brass Case,
Boxer Primed, Fully re-loadable, Packed 50 rounds per box and 20 boxes per
case of 1000 rounds. CLEARANCE PRICE!Reg. $229.89On Sale: $199.
95Independence 9mm 124 Gr FMJ 1000 RdsIndependance 9mm Luger ammunition is
100% non-corrosive, brass cased, boxer primed, new manufactured ammo
produced by CCI / ATK / Federal. High quality at a low price make this an
ideal range / target ammo. CLEARANCE PRICE!Reg. $229.... 阅读全帖 |
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d**********g
发帖数: 2014 | 39 这个网站Ak４７子弹一直有啊。
我买了４箱non corrosive的。
Corrosive是不是每次必须拆开枪清洁？
non corrosive不必每次了吧？ |
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h*********r
发帖数: 10182 | 41 Corrosion[edit]
Whether ethanol causes unacceptable levels of corrosion in internal
combustion engines has been a cause of some debate.[52][53] In general, E10
blends (see above section) pose no problems.[54] At higher blends, ethanol's
different chemistry from oil derivates makes it corrosive for certain
engine parts. These are replaced to create the flex-fuel vehicles that
accept up to E85.[55]
Fuel economy[edit]
Ethanol contains approx. 34% less energy per unit volume than gasoline, and
there... 阅读全帖 |
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P********n
发帖数: 372 | 42 Title: Laboratory Technician/Chemist
Location: Houston TX, 77082
Job Summary:
· The technical service /development chemist will provide hands-on
laboratory support to solve various customer problems and generate
innovative technical solutions that support current business and generate
new business growth opportunities
Specific duties include:
· Assisting in the technical transfer of new technology/product and
technical service request for a Global Key Account
· Conducting... 阅读全帖 |
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j****1
发帖数: 100 | 43 Title: Pushing the limits of metals in corrosive oil and gas well
environments
Author(s): Rhodes PR (Rhodes, P. R.), Skogsberg LA (Skogsberg, L. A.),
Tuttle RN (Tuttle, R. N.)
Source: CORROSION 63 (1): 63-100 JAN 2007
Document Type: Article
Language: English
Title: Review of models to predict internal pitting corrosion of oil and gas
pipelines
Author(s): Papavinasam S (Papavinasam, Sankara), Revie RW (Revie, R. Winston
), Friesen WI (Friesen, Waldemar I.), Doiron A (Doiron, Alex), Panneerselvam |
|
e***i
发帖数: 3894 | 44 Subaru recalled 660,328 of its 2005-2014 cars because salt used to clear
roads in winter can corrode the brake lines, cause leaks and make the brakes
less effective.
Subaru says it knows of no accidents or injuries as a result of the defect.
The recall covers:
2005-2009 Outback and Legacy
2008-2011 Impreza
2008-2014 Impreza WRX/STI
2009-2013 Forester
It only affects cars in what Subaru considers the "salt belt" states --
though its list is somewhat extensive: Connecticut, Delaware, Illinois,
Ind... 阅读全帖 |
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c********i
发帖数: 1489 | 45 Chinese Drywall Causing Corrosion Should Be Removed
pril 2 (Bloomberg) -- Homeowners should remove certain drywall made in China
that can cause corrosion of electrical wiring, the U.S. Consumer Product
Safety Commission said.
“All of the problem drywall and all of the electric wiring needs to be
taken out,” commission Chairman Inez Tenenbaum told reporters today on a
conference call to discuss the agency’s latest findings.
Chinese-made material used in walls and ceilings has been linked to
corro |
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o****y
发帖数: 26355 | 46 I sometime just don't understand about your guys' ideaology la.
At least, I believe in freedom ah. I am angry about the corrosion of the
freedom in the US.
Some of your guys are Nazi, totally against the freedom.
I am just curious why you guys are angry about the freedom corrosion in US.
If the US becomes a Nazi country, just realizing your guys' ideal ah. |
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n*******s
发帖数: 216 | 49 "刹车液就是液压传动用的，能有什么高温？"
文科生？
打回去google
Brake fluid boiling point
Brake fluid vaporizing
Brake Fade
不懂车不要紧，不要出来丢人即可
http://en.wikipedia.org/wiki/Brake_fluid
[edit]Service and maintenance
Most automotive professionals agree that glycol-based brake fluid, (DOT 3, DOT 4, DOT 5.1) should be flushed, or
changed, every 1–2 years.[2] Many manufacturers also require periodic fluid changes to ensure reliability and safety.
Once installed, moisture diffuses into the fluid through brake hoses and rubber seals... 阅读全帖 |
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l****z
发帖数: 29846 | 50 Gov't fines Hyundai $17.35M over brake defect
August 7, 2014 - 6:05 PM
By JOAN LOWY, Associated Press
WASHINGTON (AP) — Hyundai has agreed to pay a $17.35 million fine for
delayed reporting of a brake defect affecting Genesis luxury cars, the
National Highway Traffic Safety Administration said Thursday.
The defect involves corrosion in critical brake system components that can
reduce braking effectiveness and increase the risk of a crash, NHTSA said.
Hyundai was aware in 2012 that brake fluids u... 阅读全帖 |
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