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全部话题 - 话题: polyamine
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w*********g
发帖数: 30882
1
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
W*****B
发帖数: 4796
2
来自主题: Military版 - 精液可以用来做护肤品吗?
看到有人说精液可能有治疗痘痘的功效。有人试过吗?是不是经常被颜射皮肤就会很好
?黄片里头演员皮肤都还不错,是不是经常被颜射的原因?
In sperm, a crystalline polyamine compound called Spermine can be found.
This particular compound is also known as an antioxidant. It is believed to
diminish wrinkles, smooth skin and help with taming or preventing acne.
Bioforskning, a Norwegian company, has synthesized the compounds into a
facial cream.

发帖数: 1
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前面的答案其实不错,但貌似没有毒物分布和吸收的原理内容,那我就来献丑补充一下
吧。查了下书,书上是这么写的:
“体内和体外实验均表明,在机体各组织中,除肾脏外,肺组织中的百草枯浓度最高。
染毒30小时后,肺组织中百草枯的浓度会异常升高(Sharp等,1972;Rose等,1976)
。这是因为肺泡细胞中,有一个独特的二胺/多胺运载系统参与百草枯的摄取。百草枯
被摄取时,经NADPH依赖的单电子还原反应生成自由基,自由基与氧分子反应重新生成
百草枯阳离子和一个活性超氧化物阴离子,此超氧化物阴离子在超氧化物歧化酶作用下
转为过氧化氢。氧和过氧化氢可攻击多个未饱和脂质,形成脂质过氧化氢,再与不饱和
脂质反应形成更多的无脂质自由基,促进破坏性反应(Smith,1987)。肺泡细胞膜的
损坏可引起肺泡炎,破坏肺泡细胞,该处随即被成纤维细胞侵入,使肺组织弹性下降,
呼吸功能受损,气体(O2,CO2)无效交换。”
——Curtis D. Klaassen,《卡萨瑞特 道尔 毒理学》,人民卫生出版社,2005,P689
所以从这里来看,肺泡中的这个二胺/多胺运载系统是问题的关键。按照这个提示简单
搜索... 阅读全帖

发帖数: 1
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螯合物一般是有机离子钳制阳离子电荷,形成稳定化合物。Na虽然电荷分布不容易形成
螯合物,但是比如polyamine这些有机物,就能螯合Na离子,而食物里面恰恰有大量这
些能螯合Na的化合物。
你先放Na,大量Na被螯合,人的味蕾无法识别,吃到胃里低pH逼迫Na从螯合物中释放,
你无形中就吃了过量的Na。
D***0
发帖数: 5214
5
来自主题: Automobile版 - Mobile 1合成油又打折了
For your reference~ from MSDS

0w40
C14-16-18 ALKYL PHENOL
0.1 - < 1%
CALCIUM HYDROXIDE
0.1 - < 1%
CATALYTIC DEWAXED LIGHT PARAFFINIC OIL (PETROLEUM)
30 - < 40%
POLYOLEFIN POLYAMINE SUCCINIMIDE
1 - < 5%
ZINC BIS(O,O-DIISOOCTYL) BIS(DITHIOPHOSPHATE)
0.1 - < 1%
1-DECENE, HOMOPOLYMER HYDROGENATED
10 - < 20%
DISTILLATES, HEAVY, C18-50 - BRANCHED, CYCLIC AND LINEAR
40 - < 70%
ZINC DITHIOPHOSPHATE
0.1 - < 1%
感觉新的配方很酷。。。
s******r
发帖数: 7
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Wanhua Chemical Recruiting R&D Talents
Wanhua Chemical Group Co., Ltd., a public companyheadquartered at the
beautiful coastal city of Yantai, one of “the Most Charming Cities in China
”, specializes in R&D, production and sales of MDI and related products
such as modified MDI, polyether,aromatic polyamine, TPUand CASE products.As
Asia’s largest supplier of MDI products and the world’s second largest
producer of isocyanates, WanhuaChemicalhas operations in Asia, Europe and
America. In 2013, Wanh... 阅读全帖
s******r
发帖数: 7
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来自主题: Returnee版 - 有想回山东发展的吗?
以下是帮忙转发,单位挺实际的,看大家志向和兴趣。
Wanhua Chemical Recruiting R&D Talents
Wanhua Chemical Group Co., Ltd., a public companyheadquartered at the
beautiful coastal city of Yantai, one of “the Most Charming Cities in China
”, specializes in R&D, production and sales of MDI and related products
such as modified MDI, polyether,aromatic polyamine, TPUand CASE products.As
Asia’s largest supplier of MDI products and the world’s second largest
producer of isocyanates, WanhuaChemicalhas operations in Asia, Europe a... 阅读全帖
i********n
发帖数: 171
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来自主题: Immigration版 - 生物医学审稿人
请发简历以及相应的审稿文章编号到[email protected]/* */
1. Possible Contributions of Thyroid Hormone Replacement to Specific
Behaviors of Cancer
2. ATTENUATING EFFECT OF GYMNEMA SYLVESTRE ON STREPTOZOTOCIN-NICOTINAMIDE
INDUCED DIABETIC NEPHROPATHY IN RATS
3. Estrogen and Thyroid Cancer is a stem affair. A preliminary study
4. Therapeutic outcomes of autologous CIK cells as a maintenance therapy
in the treatment of lung cancer patients: A retrospective study
5. Role of gastrointestinal motili... 阅读全帖
Y**i
发帖数: 3016
9
来自主题: Fishing版 - 踩不死的小强:纪念我的鱼杆
epoxy是个啥?
Epoxy or polyepoxide is a thermosetting polymer formed from reaction of
an epoxide "resin" with polyamine "hardener". Epoxy has a wide range of
applications, including fiber-reinforced plastic materials and general
purpose adhesives.
Epoxy is a copolymer; that is, it is formed from two different
chemicals. These are referred to as the "resin" and the "hardener". The
resin consists of monomers or short chain polymers with an epoxide group
at either end. Most common epoxy resins are prod
n*****g
发帖数: 4117
10
Synthesis of rhizoferrin, staphyloferrin A, and polyamine catecholamides and
the study of their effects on iron transport in Paracoccus denitrificans.
author:Xin, Mei Guo
Avail. UMI, Order No. DA9997887. (2000), 153 pp.论文见图片
感谢不尽
n****[email protected]
n***s
发帖数: 1745
11
来自主题: Macromolecules版 - all acrylics thermoplastic elastomer
不跑题,还是说这个高分子,下面是我了解到的的一些信息。
using (complex) initiator which consists of a bulky aluminum compound,
utilized in the presence of a Lewis base (polyethers, polyamine, etc.), in
Toluene from -30°C- -0°C
sec-BuLi, tert-BuLi, --- initiator.
isobutylbis(2,6-tert-butyl-4-methylphenoxy)aluminium ---- co-initiator.
2-dimethoxyethane (DME) ----- Lewis base.
PMMA含量分别为32%,或者是50%, 最终产物透明度可达91%
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