配基
- 与 配基 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In view of practical problem during Sulige gas field development, this paper complete follow study content. Study material balance theory of two district compound gas reservoir. Carry out stress sensitivity experiment on matrix rock and labor created fracture core from Sulige gas field with America Core Company high pressure high temperature flow experimental instrument to study stress sensitivity change rule of different permeability matrix rock and created fracture core at the condition of time and again switch on and off well and different drawdown pressure. Carry out depletion experiment on matrix rock of different permeability serial combination with different kinds of allocation, using double core clamper serial connected experimental apparatus, to study gas well production performance of bi-zonal compound low permeability reservoir during low pressure production stage. At the basis of experimental study, establish single well simulation model to analyze development index infection caused by stress sensibility and production performance infection rule caused by inner formation and outer formation of bi-zonal compound gas reservoir permeability variation while considering stress sensitivity.
针对苏里格低渗气田开发中存在的实际问题,完成以下研究内容;研究了两区复合气藏物质平衡原理;利用美国岩芯公司高温高压流动实验仪,对取自苏里格气田基质岩芯和人工造缝岩芯进行应力敏感实验,研究不同渗透率基质岩芯和造缝岩芯在多次开关井和不同生产压差条件下的应力敏感变化规律;采用双岩芯夹持器串联实验装置,对不同渗透率串联组合的基质岩芯进行各种配产条件下的衰竭实验,研究两区复合的低渗储层气井在低压生产阶段的生产动态特征;在实验研究的基础上,建立单井模拟模型分析储层应力敏感性和非均质性对开发指标的影响,研究考虑应力敏感时两区复合气藏储层中内区和外区渗透率变化对开发动态的影响规律。
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Because of the property of donative electron of the methoxy group and the participation of the carbonyl group of the coumarin into the complexation proces...
研究表明,由于在香豆素的6 位上引入一个甲氧基,对应的主-客配合物的稳定常数较(7-甲氧基-4-亚甲基)香豆素基-单氮杂- 18-冠-6( MMC- MAC(O5))与阳离子配位的稳定常数又有所增高。
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In the synthesis process of ligands and their rare earth complexes, metal lithium is used to substitute for n-butyllithium, such as the synthesis of fluorenyl lithium, piperonal dimethyl acetal lithium, and bis (9-fluorenyl) silylene lithium.
合成配体和配合物的中间体均采用金属锂代替正丁基锂,如芴锂、溴代胡椒醛二甲基缩醛基锂盐、甲基苯基双芴基硅烷双锂盐的制备,方法简单,操作简便,副反应少,且锂盐的浓度和用量易于控制。
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And the mechanism of ATRP is discussed from the view of complex-catalytic reaction. It is deduced that the active center in ATRP is not pure radical but complex active center, which maybe a complex with radical and complex ion. The structure of active center may have a "bridge"structure formed through propaganating radical and transition metal ion, and the active center exists in a"cage"generated by ligand-transition metal ion-organic halide and monomer or solvent.
论文运用基团贡献理论对一些实验现象和结果进行了讨论和分析,并结合研究结果对络合催化引发原子转移自由基聚合反应的机理进行了初步的探讨,认为:过渡金属化合物与有机配体参与的络合催化引发原子转移自由基聚合反应中,聚合反应的活性中心不是纯粹的自由基活性中心,而是与过渡金属相结合的、有着某种"笼"结构存在的复合式活性中心,同时该活性中心以自由基特性为主,同时兼具某种程度的其它活性中心特征(如阳离子和络合聚合活性中心)。
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Bulky and electron-rich MOP-type phosphine ligand 2-ditertbutylphosphino-2'-isopropyloxy- 1,1'-binaphthyl (L1) shows good catalytic activity in palladium-catalyzed α-arylation of 1,3-dicarbonyl compounds.
富电子、大位阻MOP型烷基膦配体2-二叔丁基膦-2'-异丙氧基-1,1'-联萘(L1)在钯催化的1,3-二羰基化合物的α-芳基化反应中显示了较好的催化活性。
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Bulky and electron-rich MOP-type phosphine ligand 2-ditertbutylphosphino-2 -isopropyloxy 1,1 -binaphthyl (L1) shows good catalytic activity in palladium-catalyzed α-arylation of 1,3-dicarbony compounds.
富电子、大位阻MOP型烷基膦配体2-二叔丁基膦-2'-异丙氧基-1,1'-联萘(L1)在钯催化的1,3-二羰基化合物的α-芳基化反应中显示了较好的催化活性。
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One class is CAAX-mimetic compounds with an imidazolyl residue on one end and a carboxylic group on the other connected by benzodiazepine scaffold at different positions.
连有咪唑基的苯并二氮杂草化合物,以苯并二氮杂草-2-酮为分子骨架,7位连接含有咪唑基的侧链,1位或3位连接含羧基或酯基的侧链。此类化合物模拟了CAAX配体。
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We note from the further studies that in the crystals, which sharing the similar crystal structures and coordinational environments, the magnitude of the Stokes shift of the luminescence of the dopant ion is in line with the average covalency of the replaced lattice site. This is because that the nature of Stokes shift is the energy transfer from the luminescent ion to the host lattice. The value of this energy is determined by the frequency of the host lattice in which the frequency is controlled by the chemical bond characters.
更深入的研究发现,在晶体结构和中心离子配位环境非常相似的系列晶体中,掺杂离子发射光的Stokes位移值与其所取代格位的平均共价性成正比的关系,这是由于Stokes位移的本质是发光离子在发光过程中向基质以光波辐射的形式传递能量,这一能量的大小是由基质的振动频率决定的,而基质的化学键性质恰恰决定着基质的振动频率。
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Therefore, the pre-fabricated functional surface containing azide groups can be covalently anchored through click-chemistry by newly designed acetylene-appended HBCs. These HBC derivatives not only possess the potential in the formation of SAM, but their alignment modes of edge-on or face-on could be controlled by tailor-made molecular design.
因此,我们设计出末端带有乙炔官能基之HBC分子,希望在预先处理并带有叠氮(-N3)官能基的基板表面上进行click-chemistry (速配组合式化学、点击化学),利用共价键之形式将HBC分子镶嵌於基板表面,除了藉此制作出分子自组装单层薄膜之外,利用分子设计进一步控制其排列方式为edge-on或是face-on。
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According to investigation results of slippage damage between base course and surface course in semi-rigid base asphalt pavements , damage characteristics and causations are analyzed , preliminary countermeasures are put forward ; Based on elastic multi-layer theory with Bisar programme used as calculation tool , shearing strength between base course and surface course and its influencing factors and regulations are analyzed ; DLG-A testing instrument is self-developed , through contrast tests and orthogonal experiments , skidresistance ability between base course and surface course is researched under conditions of different base courses , surface courses , gradations , disposal measures and temperature conditions .
论文根据半刚性基层沥青路面基面层滑移病害的调查结果,分析了病害特征和原因,提出了初步对策;以弹性层状体系理论为基础,以Bisar程序为计算工具,分析了基面层间剪应力以及影响基面层间剪应力的因素和规律;自行开发了DLG-A路面材料剪切试验仪,通过对比试验和正交试验,研究了不同基层和面层类型和级配、层间处理措施以及温度条件下的基面层间抗剪切能力,在此基础上。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。