含氧的

The result showed that, the effect of the synergistic reaction of alkyl-phenol-polyoxythylene ether phosphate dispersant TERSPERSE 4896, nonyl phenyl polyoxyethylene ether dispersant TERSPERSE 2210 and XG to suspension was different. Both the rheological curves were same presented as pseudoplastic fluid when they stored in R. T (18~25℃) for 10 days, but the rheological curve of suspension with the synergistic reaction of TERSPERSE 2210 and XG was changed to dilatant fluid when it stored in R.

结果表明，烷基酚聚氧乙烯磷酸酯类分散剂TERSPERSE 4896、壬基酚聚氧乙烯醚类分散剂TERSPERSE 2210与增粘剂黄原胶协同使用所得悬浮体系，室温(18~25℃)贮存10d仍表现出二者共同的流变特性，呈假塑性的流变曲线；但室温贮存150d后，含TERSPERSE 2210与黄原胶的悬浮体系的流变性质发生了明显变化，由假塑性流体向膨胀型流体转变。

Which is made up of long carbon chain by N-alkylation or acylation,The surface activity is greatly enhanced because of structure of borate surfactants and the basic property of long carbon chain.

它们将长碳链通过N烷基化和酰化联接在一起的一类含硼表面活性剂，由于是含四配位硼氧杂环结构的表面活性剂和结合长碳链的基本性质从而极大的提高了表面活性。

A method for the preparation of microcellular elastomeric polyurethane foams from a reaction mixture comprising a polyisocyanate component containing at least 85% by weight of 4,4'-diphenylmethane diisocyanate or a variant thereof, a polyol composition comprising at least one polyoxyalkylene polyol having an average nominal hydroxyl functionality of from 2 to 6, an average hydroxyl equivalent weight of at least 1300 and an average oxyethylene content of between 50 and 85% by weight, water, a chain extender having an average hydroxyl equivalent weight of from 15 to 250 and optionally a crosslinking agent, the hardblock-content being more than 45% by weight.

本发明是有关一种制备微孔弹性聚氨基甲酸酯泡沫体的方法，其反应混合物包括：一种含至少85重量％的4，4′－二苯甲烷二异氰酸酯或其变体的聚异氰酸酯组分，一种多元醇组合物，其包含至少一种平均标称羟基官能度从2至6、平均羟基当量至少1300且平均氧乙烯含量介于50至85重量％之间的聚氧亚烷基多元醇，水，一种平均羟基当量为15至250之增链剂，以及视需要使用的交联剂，该硬性嵌段－含量（hardblock-content）大于45重量％。

A fully ethoxy-terminated polymethylsilsesquioxane has been prepared via a dehydration ethanolysis reaction between absolute ethanol and an ordered ladder-like HO-Me-T, which improved long-term storage stability of HO-Me-T. Meanwhile, EtO-Me-T can still participate in the cross-linking reaction with hydroxy-terminated PDMS in the presence of catalyst.

利用含端羟基的LPS与无水乙醇之间的催化脱水反应合成了一种乙氧基为末端基团的活性梯形聚甲基倍半硅氧烷，有效地改善该类聚合物的长期稳定性；同时，该乙氧基封端聚合物仍然具有活性，可以代替常用的正硅酸乙酯与羟基硅油进行交联反应。

The slices were divided into two groups. In group I, the slices were perfused with 5-HT(subscript 2A) receptor excitomotory-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane dissolved in modified Kreb's solution. In group Ⅱ, the slices were perfused with ketanserine specific antagonist of 5-HT(subscript 2A) receptor. The effects of DOI and ketanserine on RRDA were observed.

标本分2组：第1组使用含5-HT(下标 2A)受体特异激动剂2，5-二甲氧基－4-碘苯基丙烷的Kreb's液灌流脑片，观察其对RRDA的影响；第2组使用含5-HT(下标 2A)受体特异拮抗剂酮舍林的Kreb's液灌流脑片，观察其对RRDA的影响。

The effect of various preservative flukd with or without antagonists at 15℃ and 4℃ on the ultrastructure of fetal rat brain tissue in vitro hak been observed. The levels of oxygen free radical and liperoxide were also analysed by measuring SOD and MDA.

观察了室温与4℃条件下，含钙拮抗剂和不含钙拮抗剂的不同保存液对胎鼠脑组织超微结构的影响；并利用超氧物岐化酶和丙二醛为指标，观察了不同保存液保存的离体胎鼠脑组织中自由基和脂质过氧化水平的变化。

Five chalcones were synthesized via the aldol condensation reaction of acetophenone or parasubstituted acetophenones with 1-phenyl-3-methyl-5-phenoxyl-pyrazol-4-aldehyde, which reacted with two kinds of hydrazine in glacial acetic acid under refluxing to give a series of bipyrazoline derivatives. In this synthetic course, glacial acetic acid is not only a solvent, but also a catalyzer.

以1-苯基－3-甲基－5-苯氧基－吡唑-4-甲醛为原料，与苯乙酮发生羟醛缩合，生成相应的查尔酮，再在冰醋酸中与不同的肼反应，高产率的合成出10种新的5位含1-苯基－3-甲基－5-苯氧基－吡唑基的吡唑啉类衍生物。

After six procedures for the synthesis of deoxybenzoins reported recently were studied carefully, we finally invented a new method to prepare polyhydric deoxybenzoins.

二、详细探索了多种去氧安息香合成方法，对于近期文献报道的6种制备工艺进行了跟踪研究，首次在Hoesch反应中引入了含磷或硫的催化剂，进而发明了一种制备多羟基去氧安息香的合成新工艺。

In thesecond chapter, eleven 1,3,4-oxadizoles bearing chiral pyrazolyl moieties(4a-k) andfive triazolotriazines bearing chiral pyrazolyl moieties(5a-e) were obtained from5-[(1"S)-1",2-diacetyl-oxyethyl]-1-phenylpyrazol-3-carboxaldehyde(1) with arylcar-bohydrazide or (5-aryl-1,2,4-triazin-3-yl)hydrazine through an intramolecular1,3-dipolar cycloaddition in the presence of the non-metal oxidant IBD.

其中第二章介绍了以D-葡萄糖为原料制得的5-[(1′S)-1′，2′-二乙酰氧基乙基]-1-苯基吡唑-3-醛(1)分别与芳基甲酰肼、(5-取代苯基-1，2，4-三嗪-3-基)肼反应，在无金属氧化剂—IBD引发下，发生分子内1，3-偶极环加成，采用&一锅煮&法合成了11种含手性吡唑基的1，3，4-噁二唑类化合物(4a-k)和5种含手性吡唑基的三唑并三嗪类化合物(5a-e)。

In chapter 3, general reaction of a-hydroxy epoxides were introduced. We have developed a newly gold-catalyzed ring opening reaction ofα-hydroxy epoxides containing carbon cycle. We have disclosed the rule of ring opening reaction. And the plausible mechanism was proposed.

第三章：首先介绍了α-羟基环氧化合物的反应，其次介绍了一个新的金催化的含碳环骨架的α-羟基环氧化合物开环反应，总结了反应规律，提出了可能的反应机理。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。