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全部话题 - 话题: zinc
1 2 3 4 5 6 7 8 9 10 下页 末页 (共10页)
w*******y
发帖数: 60932
1
Zinc Plated Steel Machine Screw, Flat Head, Phillips Drive, #10-32, 3/8"
Length (Pack of 100) $0.29:
http://www.amazon.com/gp/product/B000MN4SVM
Zinc Plated Steel Sheet Metal Screw, Hex Head, #6, 1-1/4" Length (Pack of
100) $0.80:
http://www.amazon.com/Plated-Steel-Sheet-Metal-Length/dp/B000MS5VKE
Steel Cotter Pin 9/64" Diameter x 1" Length (Pack of 100) $0.49
Stainless Steel Machine Screw, Hex Head, #1-72, 1/2" Length (Pack of 10) $0.
29:
http://www.amazon.com/gp/product/B000HVDBLW
Zinc Plated
m***g
发帖数: 197
2
如果现在知道一个CAS号码,到哪查他的结构名称?
怎么到zinc里面找这个化合物?
还有,哪有详细使用zinc功能的网站或者书?
谢了!
c******k
发帖数: 1140
3
经常会看到Zinc doped p-type InP substrate, 为什么多用Zinc,它的作用是什么?
谢谢答疑。
w*******y
发帖数: 60932
4
Check out the reviews for these vitamins on the Amazon link below. They
really work. I have been using them myself for the last 2 months and have
seen a 60% decrease in acne. I originally bought them at Amazon then I found
Lucky Vitamins and was shocked how cheap they were! I got over a years
supply (8 bottles for a total of $21.63 and that is already including the $5
.95 shipping). The equates to $2.70 a bottle compared to 8.99 a bottle on
Amazon.
And for all you you who picked up the Eversave ... 阅读全帖
l****t
发帖数: 36289
5
来自主题: Military版 - Vitamin A,C & zinc增强免疫力
C,D,Zinc
a********o
发帖数: 585
6
来自主题: Arts版 - Zinc Bar
Maybe it is not suitable to post it here. I suppose music is part of arts. And
I really don't want to post on
classicalmusic board since it has little to do with classical music.
Anyway, I went to New York on New Year 's day( against the crowd) and I found
very cool Jazz Bar. It is
called " Zinc Bar" at the corner of Laguorida place in greenwich village. I
went there because it is Brazalian
Jazz and samba night! I always like Brazalian Jazz. The bar turns out to be a
very hipster place and very
j*b
发帖数: 341
7
来自主题: Biology版 - Zinc-finger nuclease 看起来蛮牛啊
同问,有没有用这个办法做human ESC.?????
老鼠的同源重组效率已经很高了,没必要用zinc。

BAC
s******r
发帖数: 2876
8
来自主题: Biology版 - Zinc-finger nuclease 看起来蛮牛啊
Jaenish lab好像有人做过。

同问,有没有用这个办法做human ESC.?????
老鼠的同源重组效率已经很高了,没必要用zinc。
BAC
a***e
发帖数: 1010
9
来自主题: Biology版 - Zinc-finger nuclease 看起来蛮牛啊
It is targeted.
However, there is also a concern of specificity and the available zinc
nucleases are also not unlimited.
j*b
发帖数: 341
10
来自主题: Biology版 - Zinc-finger nuclease 看起来蛮牛啊
Efficient targeting of expressed and silent genes in human ESCs and iPSCs
using zinc-finger nucleases"
Nature Biotechnology, August 13, 2009
a****o
发帖数: 1786
11
来自主题: Biology版 - Zinc-finger nuclease 看起来蛮牛啊
看看两伙人在NatureMethods上打架就知道没宣传的那么神奇。Unexpected failure
rates for modular assembly of engineered zinc fingers.
l**********1
发帖数: 5204
12
RE:
adeno (天夺其魄) 的post:
不是吧,
Jennifer A. Doudna HHMI
UC Berkeley组 &瑞典于默奥大的 Charpentier组的 manuscript 被 Sci magazine
accepted for publication
2012 summer n天后的
conference 上 Emma Charpentier (she) will like to note it, isn't it?
Feng Zhang 的2013 Sci magazine paper adeno (天夺其魄) 您看了全文后
看了全部references 它们的whole abstract parts 了吗?
pls refer
Multiplex Genome Engineering Using CRISPR/Cas Systems
Science. (2013) 339: 819-23.
by
Le Cong F. et al. and Feng Zhang
web link:
>HTTP://www.ncbi.nlm.nih... 阅读全帖
l**********1
发帖数: 5204
13
RE:
adeno (天夺其魄) 的post:
不是吧,
Jennifer A. Doudna HHMI
UC Berkeley组 &瑞典于默奥大的 Charpentier组的 manuscript 被 Sci magazine
accepted for publication
2012 summer n天后的
conference 上 Emma Charpentier (she) will like to note it, isn't it?
Feng Zhang 的2013 Sci magazine paper adeno (天夺其魄) 您看了全文后
看了全部references 它们的whole abstract parts 了吗?
pls refer
Multiplex Genome Engineering Using CRISPR/Cas Systems
Science. (2013) 339: 819-23.
by
Le Cong F. et al. and Feng Zhang
web link:
>HTTP://www.ncbi.nlm.nih... 阅读全帖
C***7
发帖数: 241
14
Hello, Is Zinc Sulfide (ZnS) electrical conductive?
Thanks a lot!
r******t
发帖数: 8967
15
来自主题: NanoST版 - Zinc的毒性怎么样?
打算试试AAO电镀Zinc。不知道安全吗。
r******t
发帖数: 8967
16
来自主题: NanoST版 - Zinc的毒性怎么样?
打算试试AAO电镀Zinc。不知道安全吗。
C***7
发帖数: 241
17
Hello, Is Zinc Sulfide (ZnS) electrical conductive?
Thanks a lot!
w*******y
发帖数: 60932
18
Walgreens has Nature Made 100 count Calcium Magnesium Zinc Dietary
Supplement Tablets For $5.49.
Use this Walgreens store printable $5 off Coupon
Link:
http://www.facebook.com/Walgreens?sk=app_115736958507507
and stack with the $1 off manufacturer Coupon
Link:
http://www.naturemade.com/Promotions-and-Special-Offers/Coupon-
So FREE after all!
w*******y
发帖数: 60932
19
MFS .223 55gr FMJ Zinc Plated Steel Case Manufactured by MFS 2000 Hungarian
Ammunition Manufacturing Inc. Non-corrosive. 20 rounds per box. $4.99
shipped.
Link:
http://iway.org/9578591
p*********e
发帖数: 32207
20
☆─────────────────────────────────────☆
yeemartin (猪头) 于 (Mon Aug 17 05:10:38 2009, 美东) 提到:
看了一篇的文章
有解释为啥Shell Rotella T、Mobil Delvac这些heavy duty diesel oil的Used oil
analysis结果都很突出的原因,普通engine oil是S certification,例如SJ、SM。商
用truck engine oil是C certification, 目前是CI、CJ。C的additive package比S的
牛x很多,但有可能会不兼容乘用车上的catalytic converter。
我的G35目前就在用Shell Rotella T,摩托车下次换油也准备用这个。mobil的
synthetic motorcycle oil 1 quart 12刀,受不了。
Commercial (Diesel) Oil
The additive packages for C (commercial) certification... 阅读全帖
s*******n
发帖数: 12995
21
☆─────────────────────────────────────☆
JQLuLu (lulu) 于 (Mon Mar 19 15:17:26 2012, 美东) 提到:
找公司还是自己清理?
☆─────────────────────────────────────☆
forgetthem (宛芝) 于 (Mon Mar 19 15:20:52 2012, 美东) 提到:
找人用气压枪冲。。。然后上药水,以后就不长了。这样处理过后院子里不能种菜了。
☆─────────────────────────────────────☆
er (月光--每月钱花光光) 于 (Mon Mar 19 15:24:08 2012, 美东) 提到:
hire a company. about $200-300. it will good for 2-3 years.
☆─────────────────────────────────────☆
forgetthem (宛芝) 于 (Mon Mar 19 15:25:06 2012, 美东) 提到:
... 阅读全帖
l*****a
发帖数: 38403
22
Cold remedies: What works, what doesn't, what can't hurt
There's no cure for the common cold. But what about cold remedies that claim
to make you feel better faster? Find out what's effective — and what's not.
Cold remedies are almost as common as the common cold, and many are nearly
as ancient. The use of chicken soup as a congestion cure dates back
centuries. But is longevity any guarantee that a cold remedy works? Do
effective cold remedies even exist? Here's a look at some common cold
remedi... 阅读全帖
p****y
发帖数: 23737
23
来自主题: _Vegetarianism版 - 素食者都应该吃的八种食材
http://blog.wenxuecity.com/blogview.php?date=201107&postID=8097
相信现代人都知道素食对身体好,也环保, 但因为素食者不吃肉和海鲜,有些还不吃蛋
和奶类,他们的食材中易缺少六种营养元素,分别是蛋白质,铁,钙,锌,维他命B12,
维他命D。
经常吃下面这八种食材可以帮助素食者补充这六种营养元素,从而最大程度的保证身体
健康。这八种食材由美国营养学协会发言人(American Dietetics Association spoke
sperson Cynthia Sass)推荐。Cynthia是位严格素食者。
这八种食材分别为豆腐,小扁豆(lentil), 豆类(beans),坚果(nuts),糙谷物(w
hole grains),深绿色蔬菜(leafy greens),海带,果脯。
详细资料请看下面这篇文章。
http://www.vegetariantimes.com/features/editors_picks/387
There is a world of reasons to go meatless, from hea... 阅读全帖
T******g
发帖数: 21328
24
http://www.calguns.net/calgunforum/showthread.php?t=401975
ALL AMMO IS IN STOCK, NEW PRODUCTION, AND NON-CORROSIVE
All AMMO ships for $9.99 per case
RIFLE AMMO
MFS .223 Remington, 55 Gr, FMJ, Zn (Zinc) plated steel case, $119.95 for
500 or 229.95 for 1000 rds.
MFS .223 Remington, 62 Gr, Soft Point, Zn (Zinc) plated steel case,
$124.95 for 500 or $229.95 for 1000 rds.
MFS .308 Winchester, 140 Gr, Soft point, Zn (Zinc) plated steel case,
200 rds $74.99
MFS .308 Winchester, 145 Gr, FMJ, Zn (Zinc) p... 阅读全帖
S*********2
发帖数: 172
25
来自主题: WaterWorld版 - 废旧电池往哪儿扔?
你让我很无语。。。
http://www.batteryrecycling.com/Battery+Recycling+Process
Alkaline/Zinc Carbon/Zinc Air Batteries
These batteries are recycled in a specialized “room temperature,”
mechanical separation process where the battery components are separated
into 3 end products. These items are a) Zinc & Manganese Concentrate, b)
Steel, c) Paper & Plastic. All of these products are put back into the
market place for reuse in new products. These batteries are 100% recycled.
Lithium Ion Batteries
Prior to the... 阅读全帖
w*********g
发帖数: 30882
26
平井宪夫揭示日本核电业惊天内幕——素人造核电,豆腐渣工程
作者:蜀中行 更新时间:2011-3-16
设施配管1级技士平井宪夫(1997年1月因癌症逝世)生前的最后吶喊。
/来自中华网社区 club.china.com/
/来自中华网社区 club.china.com/
关于平井宪夫:
1997年1月逝世。设施配管1级技士,核电事故调查国民会议顾问,核电劳工救济中
心代表,北陆电力志贺核电厂停止诉讼原告特别辅佐人,东北电力女川核电停止诉讼原
告特别辅佐人,福岛二号核电厂三号机运转停止诉讼原告证人。「核电劳工救济中心代
表」在他仙逝后,因后继无人关闭
"我不是反核运动家。这20年来,我一直在核电厂工作。社会上有听不完的拥核反
核理论,但我只想在这里告诉大家:「所谓的核电厂是这样一回事。」大部份的人都不
知道核电内部的实际情形。希望大家有耐心把这篇文章读完。所谓核电,跟各位所想的
或许有点出入。在那里,每天都有遭受放射线污染的工人,以及严重的岐视产生。
我的专长,是负责大型化学工场的内部配管施工与维修。快30岁时,日本掀起了一
阵核电建设的... 阅读全帖
e********8
发帖数: 929
27
主題:全天然維他命、礦物質 vs 人工合成的維他命、礦物質
最理想的營養應該全部從新鮮、無污染、無加工的食物而來,但往往現代人於這充滿化
學物質及嚴重污染的
世界下,不但不能吸收足夠的營養,還吸收了不少的毒素,以致百病叢身,所以有需要
從營養補充品中吸取
各種營養。
而維他命和礦物質的補充品可分為兩大類:全天然 ( 或全食物 ) 與 人工合成。
1) 人工合成 ( Synthetic, USP type ) 的問題:
世界上各種的食物最少由103,000種不同的植物元素 ( Phyto-nutrients ) 所組成,一
個蕃茄已含有約10,000
種的植物元素。而人工合成的維他命只是於實驗室裡複制天然維他命的分子結構的化合
物,而食物元素是複雜
的分子,並不是單一的簡單元素。如沒有清楚寫明是全食物制造,市面上的營養補充品
都是人工合成的化學物
質。
吸收 ( Assimilation )、保存 ( Retention )、相互作用 ( Synergy )、生物吸收率
( Bio-availability ):
人體吸收每一種的營養元素都需要各種酵素、維他命、礦物質以及其它很多還未知的... 阅读全帖
j******u
发帖数: 41683
28
来自主题: PennySaver版 - [合集] 讨论一下防晒霜呗~~
☆─────────────────────────────────────☆
chai (柴) 于 (Tue May 21 15:36:12 2013, 美东) 提到:
既然是省版,那资生堂之类的就pass了,说些药店的呗
水宝宝,香蕉船,aveeno,露得清,还有啥~~~
大家都用过啥,觉得效果哪个比较好啊?~~
偶就用过水宝宝运动款的,没有特别滴感觉,还是黑啊。。。
今年想入露得清,不知道怎么样。。。
☆─────────────────────────────────────☆
nowhere09 (everywhere or nowhere) 于 (Tue May 21 15:42:57 2013, 美东) 提到:
喜欢露得清 不油, 水宝宝有点油 但有美白效果,呵呵

☆─────────────────────────────────────☆
sakurafirst (yaya) 于 (Tue May 21 15:43:14 2013, 美东) 提到:
曼秀雷敦。。。
☆───────────────────────────────────... 阅读全帖
j*********r
发帖数: 24733
29
来自主题: Running版 - 你们跑步防晒不
我来说两句这个防晒霜, 因为小孩子要用, 做过一段时间的research, 谈谈我的看法.
一家之言, 可能有误.
防晒霜分为物理防晒和化学防晒, 物理防晒就是摸到脸上的是一层物理barrier, 主要
成分就是Titanium Dioxide和Zinc Oxide, 浓度越高效果更好, 当然也更难摸. 需要注
意的是ZINC OXIDE颗粒的直径要大于100nm, 太小的颗粒会增加致癌风险. 这种引起过
敏的可能性要低很多. 化学防晒就是不同的chemicals, 摸到脸上后需要一定时间起反
应, 形成barrier, 一般1.5-2小时要补一次. 这种我试过所有的major brands, 经常引
起过敏, 非常不喜欢. 还有一个噱头就是SPF, 物理的一般标30+, 化学的一般要高很多
, 什么SPF80, SPF100之类的, 其实没啥大用, 我觉得效果不好. 晒黑其实没事, 防晒
霜防的是晒伤.
再高级一点的话就是organic的了, 这种都是物理防晒, 是各种植物提取物加上
Titanium Dioxide和Zinc Oxide, 有些非常难摸开, 而且味道不太好. 也贵很... 阅读全帖
a*******a
发帖数: 747
30
我觉得physical防晒涂最外,化学防晒要直接和皮肤接触才管用。
但是混合的防晒霜我就不知道了。。。
转:
Here are 8 easy tips for applying sunscreen:
1. Lay it on thick. Use a tablespoon of sunscreen (of at least an SPF 25) on
your face, and about two ounces for your body. Unless you slather on a
thick layer, you’re probably just getting an SPF 10 out of your SPF 30.
2. Dot sunscreen directly onto your face—instead of squeezing a giant blob
onto your hands and applying it. I’ve found this technique helps it absorb
more quickly and evenly.
3. Pu... 阅读全帖
v***u
发帖数: 11
31
来自主题: _IVF版 - 泌乳素高的问题
Foods That Lower Prolactin
Foods that are high in zinc content are recommended. Zinc works hand in hand
with vitamin B6 to manage metabolic processes and to lower prolactin levels
. Zinc also proves beneficial for women seeking to manage symptoms
associated with premenstrual syndrome. Poultry, red meats, shellfish, shrimp
, crabs, oysters, Gouda cheese, pinto beans, green beans, tofu, peanuts,
soybeans and sunflower seeds are natural sources of zinc.
w*******y
发帖数: 60932
32
Shnoop.com has the PowerGenix Fast Charger + 4 AA NiZn 1.6v Rechargeable
Batteries for $7.99 with free shipping.
Here is their blurb:
quote
GO GREEN AND SAVE GREEN! THE HOTTEST SELLING BATTERIES ON THE WEB!
Originally the invention of Thomas Edison, and until recent innovations by
PowerGenix, the Nickel-Zinc battery was considered too expensive to produce.
PowerGenix s recent breakthrough s in engineering have changed this
playing field, producing a high-voltage rechargeable battery that is
de... 阅读全帖
c*********p
发帖数: 3217
33
Food for men 1: Tomatoes
Food for men 2: Blueberries
Food for men 3: Brazil nuts
Food for men 4: Broccoli
Food for men 5: Oysters
Food for men 6: Whole grains
Food for men 7: Eggs
Food for men 8: Pomegranate juice
Food for men 9: Garlic
Food for men 10: Salmon
Food for men 1: Tomatoes
Tomatoes are possibly one of the best "superfoods" around, and the popular
fruit has particular benefits for men. Studies
have suggested that the lycopene found in tomatoes may reduce risk of
colorectal cancer, low... 阅读全帖
a******t
发帖数: 2944
34
来自主题: NextGeneration版 - 加州宝贝sunscreen可能致癌??
物理防晒有用 titanium dioxide或者zinc oxide两种. 那篇文章说tio2的危险性和颗
粒大小相关,我的理解如果太小了,像加州宝贝用的是highly micronized,那可能就能进
入细胞了.长期用的危险性多大不知道,反正能免则免吧.
重新看了Coppertone Waterbabies的成分,是用zinc的,但的确有化学防晒成分. 后来找
到这个:
http://www.drugstore.com/badger-baby-sunscreen-spf-30-chamomile
说是用Non-Nano Uncoated Zinc Oxide,我想是比较安全的,EWG的评价也很好.准备换这
个了.
I****s
发帖数: 6150
35
来自主题: NextGeneration版 - 我是因为吃叶酸导致月经失调吗?
A zinc-dependent enzyme is necessary for the metabolism of folic acid. Folic
acid may reduce zinc absorption when the dietary zinc intake is low but not
when it is high.
如果不是吃单独的叶酸片剂,而是吃复合维生素的话,不会影响锌的吸收。因为里面有
搭配好的足量的锌,叶酸含量一般也不会过高。
国内大多数人补叶酸,吃的都是单独的叶酸片,吃多了造成影响锌的吸收倒也不奇怪。
而且她们吃的都很不统一。我看到有好些人随便买来叶酸就吃,吃的都是普通叶酸片(
不是专门针对孕妇的),是专门治疗贫血的,叶酸含量高达5mg。而孕妇的叶酸推荐量
大概是600mcg=0.6mg。乱吃叶酸的后果就是超标太多了。
j*****1
发帖数: 1107
36
来自主题: Parenting版 - 求推荐,很好涂匀的sun lotion
You need to look at the ingredients. Only zinc oxide and titanium oxide (
physical based barrier) provide instant sun ray protection. All other
ingredients, which are chemical based, only start to work after 10-15 min of
application. That's why we need to apply chemical-based sun lotion 15min
before exposing ourselves to sun.
I always use an SPF 50 Coppertone waterbabies sunblock with both chemical
ingredients and zinc, so that it provides both instant and prolonged
protection. Reapply every 2 h... 阅读全帖
c*******3
发帖数: 98
37
I would like to review ZnO growth manuscript.Thanks!
My CV is as follows:
JINGBO CHANG
Laboratory of Nanotech. for Sustainable Energy and Environment University of
Wisconsin-Milwaukee, 3200 North Cramer Street Milwaukee, WI 53211, USA
www.researchgate.net/profile/Jingbo_Chang/publications/
PERSONAL DETAILS
Date of Birth: 28th Sep. 1979 Gender: Male
Nationality: China Marital Status: Married
Tel. +1- 414- 688-1383 E-mail: c*****[email protected]
EDUCATIONS
☼ Post doc, major in Mechanical Engineerin... 阅读全帖
c*******3
发帖数: 98
38
来自主题: Immigration版 - Gone! 审稿机会推荐
JINGBO CHANG
Laboratory of Nanotech. for Sustainable Energy and Environment University of
Wisconsin-Milwaukee, 3200 North Cramer Street Milwaukee, WI 53211, USA
Research Highlights
 Graphene/SWNTs FET based platform for biosensor and water sensor
applications.
 Graphene based hybrid materials for high-performance lithium-ion
battery applications.
 High-performance photoresponse from SWNT/ZnO heterojunctions for UV
sensor
and solar cell applications.
 High conducti... 阅读全帖
d******q
发帖数: 41
39
来自主题: Indiana版 - 帮忙国内带补锌的冲剂
that kind of stuff contain zinc oxide.
It is no so good.
I'd like the zinc sulfide or zinc glocuside.

stuff.
b*******e
发帖数: 243
40
内推纽约投行IT,金融领域各级工作。想找的请发简历到[email protected]/* */
com
1.QA Tester / Automation Engineer in a NYC bank
Job Description
We are seeking for an experienced QA Analyst / Automation Engineer who has
around 3-5 years of experience. The resource will be responsible for
functional and automation tasks associated with respective LOB. Candidate
should be capable of designing and building tests, automated test leveraging
automation tools, custom APIs for new and existing projects.
Responsibilities
R... 阅读全帖
v******s
发帖数: 6949
41
一只手打字不给力呀
http://en.wikipedia.org/wiki/Phytic_acid
Phytic acid has a strong binding affinity to important minerals, such as
calcium, iron, and zinc, although the binding of calcium with phytic acid is
pH-dependent.[18] The binding of phytic acid with iron is more complex,
although there certainly is a strong binding affinity, molecules like
phenols and tannins also influence the binding.[19] When iron and zinc bind
to phytic acid they form insoluble precipitate and are far less absorbable
in the... 阅读全帖
a**********u
发帖数: 28450
42
卧槽,施一公的在proquest找到了
Molecular mechanisms of zinc finger protein-nucleic acid interactions
Diss.Shi, Yigong. The Johns Hopkins University, 1995. 9533321.
...suggest applications for designed zinc finger proteins. In conclusion,
...of the molecular mechanisms of zinc finger protein-nucleic acid
interactions and
Z**i
发帖数: 5681
43
来自主题: pets版 - German Shepherd Puppy
Nutro我不太推荐,肉太少了。。。
第一个前三个成分只有一个是Lamb,而且是Lamb Meal。。。不太好吧。
Lamb Meal, Rice Flour, Rice Bran, Rice Gluten, Ground Rice, Dried Beet
Pulp,
Soybean Oil, Sunflower Oil (preserved with mixed Tocopherols, a source
of
natural Vitamin E), Poultry Fat (preserved with mixed Tocopherols, a
source
of natural Vitamin E), Natural Flavor, Potassium Chloride, Dried Kelp (
source of Iodine), Dried Egg Product, Zinc Sulfate, Vitamin E
Supplement,
Ferrous Sulfate, Taurine, Choline Chloride, Biotin, Ascorbic Acid
(so... 阅读全帖
b*******e
发帖数: 243
44
长期内推纽约投行IT,金融领域各级工作。想找的请发简历到[email protected]/* */
com
1.QA Tester / Automation Engineer in a NYC bank
Job Description
We are seeking for an experienced QA Analyst / Automation Engineer who has
around 3-5 years of experience. The resource will be responsible for
functional and automation tasks associated with respective LOB. Candidate
should be capable of designing and building tests, automated test leveraging
automation tools, custom APIs for new and existing projects.
Responsibilities
&#... 阅读全帖
o**4
发帖数: 35028
45
一公超过1000的还真没有,似乎都是review:
这些事一公引用率前4的文章,似乎都是review:
Mechanisms of TGF-β signaling from cell membrane to the nucleus
Y Shi, J Massagué - Cell, 2003 - Elsevier
TGF-β signaling controls a plethora of cellular responses and figures
prominently in animal
development. Recent cellular, biochemical, and structural studies have
revealed significant
insight into the mechanisms of the activation of TGF-β receptors through
ligand binding, ...
Cited by 3259 Related articles All 25 versions Cite
The galvaniza... 阅读全帖
s****e
发帖数: 2934
46
来自主题: Macromolecules版 - 做DSC遇上怪事,请教专业的分析
我的一个液体样品,装在一个密封的DSC pan里面,我的DSC pan是steel的,分子量和结
构差别不大的两个样品A和B,一共做了3次DSC,A2次,B1次,3个结果基本相同都是一个
从250度开始,在300度左右到达max,350结束的放热峰,curing(向上)。
因为我的DSC pan和一般的aluminium pan不同,以上结果只是初试,pan的类型选的
aluminium。
于是我又做了如下实验,pan的类型选的other。
用indium 和zinc做了cell contant 和温度的calibration。indium的升温程序为120-
180c,每分钟10度,zinc的升温程序为350-450C,每分钟10度。得到indium的熔点比正
常的高出3C,不是正常的156而是159C,Zinc同样也是相差3到4度,calibrate以后校正到
正确熔点。
calibrate之后用A样品做DSC。从理论上说校正之后应该和校正之前没有太大差别。可是
一共做了4次,所做样品再也没有重现性。max分别为360,330,350,317,。于是我猜想
可能是我的high pr
m******i
发帖数: 834
47
这是我看过的合成尺径最小(2nm)的ZnO纳米棒的报道,不过文章有点老,2004的。
Zinc Oxide Quantum Rods
Ming Yin, Yi Gu, Igor L. Kuskovsky, Tamar Andelman, Yimei
Zhu, G. F. Neumark, and
Stephen O’Brien*,
J. AM. CHEM. SOC. 2004, 126, 6206-6207
Abstract
Nanoscale zinc oxide (ZnO) rods of diameters close to the Bohr-exciton
radius (~2 nm) can be prepared from a simple acetate precursor, resulting in
ligand-capped rods of ZnO, highly dispersible in nonpolar solvents. Zinc
oxide, ZnO, is a wide band-gap semiconductor with applications i

发帖数: 1
48
Best of Last Year—The top Phys.org articles of 2017
December 19, 2017 by Bob Yirka, Phys.org report
Study reveals substantial evidence of holographic universe
A sketch of the timeline of the holographic Universe. Time runs from left to
right. The far left denotes the holographic phase and the image is blurry
because space and time are not yet well defined. At the end of this phase (
denoted by the …more
It was another great year for science, particularly physics, as evidenced by
a study conducte... 阅读全帖
b*******e
发帖数: 243
49
内推纽约投行IT,金融领域各级工作。想找的请发简历到[email protected]/* */
com
1.QA Tester / Automation Engineer in a NYC bank
Job Description
We are seeking for an experienced QA Analyst / Automation Engineer who has
around 3-5 years of experience. The resource will be responsible for
functional and automation tasks associated with respective LOB. Candidate
should be capable of designing and building tests, automated test leveraging
automation tools, custom APIs for new and existing projects.
Responsibilities
R... 阅读全帖
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