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protogenic的用法。与
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Duclei may take place in the process of fertilisation, if we suppose the
chromosomes to retain their individuality, there will be no interchange of
chromomeres or their determinants between the allogenic and protogenic
chromosomes in the ...
2
Pharmaceutical Drug Analysis
(b) Protogenic Solvents : They are acidic in nature and character e.g., sulphuric
acid. They exert a 'levelling effect' on bases i.e. , they become indistinguishable
in strength when dissolved in strongly basic solvents due to their enhanced
affinity ...
(b) Protogenic solvent is that which can give (donate) a proton, hence protogenic
solvent is an acid. Example : Acetic acid, Formic acid, Sulphuric acid. (c)
Amphiprotic solvent is that which can accept a proton from the solute or can also
donate ...
4
Natural Attenuation of Contaminants in Soils
3.4.1 Acid-Base Reactions and Hydrolysis The pore water in a wet soil, without
dissolved solutes and other contaminant ions, is by itself a solvent that can be
either a protophillic or a protogenic solvent. It can function as an acid or as a
base.
Raymond N. Yong, Catherine N. Mulligan, 2003
5
Fuel Cells: Selected Entries from the Encyclopedia of ...
Protogenic. Group. The source of the protons in current state-of-the-art PEM fuel
cells is the highly acidic sulfonic acid functional group. As pointed out above,
hydration is required to dissociate the protons of these groups and to mobilize the
...
Klaus-Dieter Kreuer, 2012
6
Chemistry in Non-Aqueous Solvents
A certain number of solvents exhibit simultaneously a 'protophilic' character and a
'protogenic' character. These are the protic solvents, amphoteric, known now as '
amphiprotic solvents'. Water is the main member of this class and is the model.
7
Aquaculture Development in China: The Role of Public Sector ...
All the other breeding stations and bases are State-owned. Their operations are
financed from Government funds and income from selling seeds. 2. Seed quality
control policy The Government established the China National Fish Protogenic ...
Nathanaël Hishamunda, Rohana P. Subasinghe, 2003
8
Competition Science Vision
Protogenic solvent are those which have tendency to give protons e.g. HCI,
glacial acetic acid etc. Amphiprotic solvents are those which act both as
protophilic and protogenic solvents, e.g., H20, NH3, C2H5OH etc. The salts of
strong acid and ...
By definition, protogenic solvents are acids and protophilic, bases. Ethanoic acid,
weak in water, is strongly ionized in liquid ammonia, a base. Bases are stronger
when dissolved in ethanoic acid than in a less protogenic solvent such as water.
10
Carbonates—Advances in Research and Application: 2013 Edition
Hydrogen sulfide (H.sub.2S) is a Bronsted acid, and it reacts with all sufficiently
basic amine species, including tertiary or non-protogenic amines, amidines,
guanidines, and biguanides through simple acid/base reactions by the transfer of
a ...
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Mountain Molding acquisition expands scope of Tenere's injection …
Prototyping using Objet Connex 3 FDM, SLA and laser sintering processes is available at its Protogenic rapid prototyping division in Westminster, CO. «Plastics Today, 五月 15»
White Water Block from EKWB for the White GTX 780 Ti HoF
protogenic , December 12, 2013 9:35 PM. I am sure it is 780 HoF not 780 ti. 2 Hide. jasonelmore , December 12, 2013 10:29 PM. No this is not for the plain 780's ... «Tom's Hardware Guide, 十二月 13»
Deal with Spectrum Plastics helps Pexco diversify into custom molding
In May, Spell sold off its rapid prototyping business, Protogenic Inc. of Westminster, Colo., to injection molder Tenere Inc. "Prior to the Minnesota sale, we spun ... «Plastics News, 九月 13»
Tenere acquires rapid prototyper
Protogenic does prototyping and casting. It has 38 employees at its 22,000-square-foot facility in Colorado. The company offers stereolithography, laser sintering ... «Plastics News, 六月 13»
Tenere, Inc. Acquires Protogenic to Expand Rapid Prototyping …
“Tenere was attracted to Protogenic's expertise in a wide range of rapid prototyping processes,” said Jon Fisk, Tenere's Vice President of Operations. “We have ... «Business Wire, 五月 13»
Spectrum Plastics forecasts double-digit growth
2008: Spectrum Plastics Group buys Protogenic (Westminster, CO), a prototyping service bureau and low volume casting shop. Spectrum now operates more ... «Plastics Today, 十一月 11»
Byelorussia's Snow Queen: "In a team of men, you become the most …
Second, the magic of "the protogenic world" - impossible to describe by paintings, or words. Third: All of us are stripped in the mountains: We become purer, ... «Mounteverest, 十月 04»
