苯环

Strain CW-02 was isolated from ground sewerage of oil field. It is facultatively anaerobic with optimal pH of 2.8 and maximum temperature at 48 ℃. The optimum NaCl concentration for its growth is 30.0 g/L. CW-03 was isolated from crude oil well of more than 4 000 m deep.

菌株CW02来自于油田联合污水处理站里的地面污水，兼性厌氧，能在pH为2.8的酸性培养基中生长，耐受最高矿化度为30.0g/L，最高生长温度为48℃，可利用苯环化合物为唯一碳源生长。

The results show that ∑ PAH16 contents in source separation household bio-organic waste and composting production is 2,19 and 1.96 mg/kg DM, and the contents of naphthalene, fluorene, phenanthrene, fluoranthene are relatively higher than others.

结果表明，源分类家庭生物有机垃圾及其堆肥产品中∑PAH16化合物含量分别为2.19和1.96mg/kg，其中萘、芴、菲、荧蒽含量相对较高，占总量的79.76%和81.76%，这4种有机物的苯环在2-3之间，属于易降解非致癌物质，在农田施用中易被降解；在生物垃圾堆肥过程中∑PAH16的生物降解率为25.88%，堆肥后产品PAHs含量符合农田使用标准。

Five novel asymmetrical molecular tweezers based on diethoxycarbonyl-and diphenyl glycoluril with different substituted groups of aromatic ringsand 1,2 -dihydro-indazol-3-one moiety as sidewalls were designed and synthesized.

合成了五个含单个1，2-二氢-引唑-3-酮和不同取代的苯环(H，OMe，Me，Br)为墙面的基于二乙基酯基甘脲和二苯基甘脲的不对称分子钳。

A new high-molecular-mass hydroxamic acid containing phenyl as high efficiency flocculant was synthesized by microemulsion polymerication.

采用微乳液聚合法合成了一种带有苯环结构的新型氧肟酸类赤泥絮凝剂。

A new high-molecular-mass hydroxamic acid containing phenyl as high efficiency flocculant was synthesized by microemulsion polymerication.

摘 要：采用微乳液聚合法合成了一种带有苯环结构的新型氧肟酸类赤泥絮凝剂。

Firstly, Copolymerization of acrylamide and styrene was carried out in a microemulsion system, in which AM aqueous solution was the continue phase and St was the dispersed phase using ST-80 as surfactants respectively, then hydroxamic functions were prepared with hydroxylamine salt at temperatures of from 60℃ to 90℃.

首先以丙烯酰胺水溶液为连续相，以苯乙烯为分散相，ST-80为乳化剂制成微乳液，在15℃~35℃合成丙烯酰胺与苯乙烯的共聚物；然后采用程序控温方式，在60℃~90℃用硫酸羟胺将共聚物羟肟化合成了一种带有苯环结构的嵌段型氧肟酸类聚合物材料。

However, the 3-and γ-positions were found to be the active metobolism sites either in vitro or in vivo, while no hydroxylate on benzene ring was detected for most of them.

但总的说来，不论在体外，还是在体内转化中，3-位，γ-位是这类化合物代谢的活性位点，而苯环上4-、5-位几乎均未发现有代谢物生成。

Electron donating substituent CH〓, OCH〓 and 4, 5-benzo make λ〓 red shift, electron with -drawing substituent F, Cl and CF〓 make λ〓 hypsochromic shift; b The W〓 is bigger than relative symmetrical carbocyanines, and the ratio of 0-1＇ and 0-0＇ transition intensity increase with the increase of σ〓; c The absorption and the fluorescence spectra are mirror image, and the λ〓 have a good linear relationship; d The Stokes shift △λ〓 and the Hammett σ〓 constant have a good linear relationship.

研究了染料的光物理性质，①苯环上取代基影响染料的λ〓和摩尔消光系数，相对于H，给电子取代基CH〓、OCH〓、4，5-benzo使λ〓红移，摩尔消光系数减小，吸电子取代基F、Cl、CF〓使λ〓蓝移，摩尔消光系数减小；②化合物吸收峰的半峰宽较相应的对称染料的大，且振动肩部与最大吸收峰的强度比随σ〓增大而增大；③吸收光谱与荧光光谱呈镜像关系，且λ〓与λ〓呈良好的线性关系；④化合物的Stokes位移△λ〓与取代基的Hammett σ〓常数呈线性关系。

The results of the present research are as follows, The correlation between physico-chemical properties of organic compounds and their competitive power was studied, and it was indicated that organic compounds preferable to form H-bonding with organic matter of sorbents have stronger competitive power; Sorption behaviors of ionizable organic compounds in different species and their competitive power were examined, and the results showed that phenols and carbonxylic acids with benzyl circle have much stronger competitive power in molecular species than in ionized species, because negative charges of anionic forms can depressed their adsorption on the surface of the sediment; in contrast, organic bases such as aniline and p-chloroaniline show weaker competitive power in molecular species than in ionized species, and this is because both species of the organic bases could adsorb strongly onto the sediment; there is a correlation between competitive power of organic pollutants in multi-solute systems and their sorption isotherm nonlinearity in single-solute systems, and organic compounds whose sorption isotherms is linear in single-solute systems hardly have competitive power in multi-solute systems; Competitive sorption effects in more than two-solutes systems was studied, and it was exhibited that mixture of two cosolutes each of which could suppress sorption of nominal solute onto the sediment had synergistically competitive sorption effect on the nominal solute; A method about incorporating sorption/desorption of organic pollutants into river water quality model was developed, and discussion about degree of sorption/desorption effect on model prediction for different organic compounds was made, which will provide theoretical basis and practical processes for setting up more accurate water quality model.

论文主要取得了以下研究成果。(1)有机化合物的吸附竞争能力与其物化性质具有相关性，易与沉积物有机质形成氢键的化合物其竞争能力也比较强；(2)可离子化有机化合物的吸附竞争能力与其存在形态有关。酚类、含苯环的羧酸类化合物，其离子态的吸附竞争能力远小于分子态，其机理为有机酸阴离子所带的负电荷抑制了表面吸附能力，主要发生分配作用；而苯胺类化合物，其离子态和分子态都表现出显著的竞争能力，而且离子态的竞争能力略强于分子态，原因在于有机碱阳离子所带的正电荷促进了其表面吸附能力；有机化合物竞争能力的强弱与其单组分吸附等温线的非线性程度具有一定的相关性，吸附等温线近似为线性的化合物没有或只具有微弱的竞争能力；(3)对目标有机化合物的吸附具有竞争效应的有机化合物混合后，将对目标有机化合物的吸附产生协同竞争效应；(4)以京杭运河为例，率先提出了将有机污染物的吸附／脱附作用及水文水力参数耦合到水质模型中的方法，并讨论了吸附／脱附作用对不同有机污染物预测模型的影响，为建立更准确的水质模型及进行更客观的风险和生态评估提供了参考依据。

With the varying of potential the adsorption behavior of picolinic acid is invariant,while the adsorption behavior of isonicotinic acid and nicotinic acid may change.

分析表明在电极电位负移过程中皮考酸分子一直采取通过羧基和苯环上的N原子侧立吸附在银电极表面，与之不同的是，异烟酸分子和烟酸分子在表面的吸附状态都随电位改变发生了变化，我们对此进行了分析和解释。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。