离子的
- 与 离子的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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It is very difficult to eliminate these influence factors completely by conventional treatment. Surface properties and surface treatment of ultrafine red phosphorus and MMT and their interface properties with polymer matrices were studied in this thesis. The results were characterized by GC, FTIR, XRD, DTA, TG, XPS, UV, SEM, TEM and other physical and chemical methods. The main contents are as following: 1. The study of factors influencing ultrafine red phosphorus's invariability and phosphine liberation indicated red phosphorus undergone oxidation and dismutation reaction in air, and trace ion of iron, copper and nickel fastened water absorption and oxidation, in which the effect of copper ion was the most, while aluminium and zinc ion could slow down red phosphorus'oxidation, and silver ion had the best effect on red phosphorus moisture absorption. Inhibitors such as aluminium hydroxide, magnesium hydroxide, organic phenol and ferrous potassuim cyanide had a good effect on reducing red phosphorus moisture absorption and restraining phosphine liberation.
本文围绕纳微米材料的表面处理及其在高聚物基体中的应用这一主题,系统地研究了超细红磷和蒙脱土两种常见材料的表面特性、表面处理方法及其与高聚物基体的界面特性,通过气相色谱、红外光谱、X射线衍射、差热、热重、X射线光电子能谱仪、紫外光谱、扫描电镜、透射电镜等现代分析仪器以及其它物理、化学方法对实验结果进行了表征和分析,全文主要内容如下: 1、对影响超细红磷安定性的因素以及磷化氢的缓释研究表明:红磷在空气中发生缓慢氧化、歧化反应,微量的铜、铁、镍等金属离子增加了它的吸水和氧化速度,其中铜离子的作用最为明显,而铝、锌等离子减慢了红磷的氧化速度,银离子对减少红磷的吸湿性效果最好。
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From the angle of engineering application, this article analysed the corrosion characteristics and damage causes of the current structural used concrete in the region of Hangzhou gulf, on the basis of on-site survey of all the Marine concrete projects in that area. Taking HPC used in Marine as research objective, this article put great emphasis on the influence of the composition cementing material system to concrete performance, and make a preliminary probe into the action mechanism of the composite effects of various mineral materials in improving the performance of concrete by laser measuring size machine and EMPA. Through experiments, the article discussed how chloride ingression in concrete will be effected by such factors as exposure time, chloride binding, environment temperature, stress and cracks conditions; and also analysed the symptoms of these factors in the model of concrete service life prediction by conference to all related research reports both home and aboard. On the foundation of abovementioned research, this paper brought up an engineering model of service life prediction of marine concrete, which is based on chloride-induced corrosion.
本文从工程应用的角度,在对杭州湾地区既有海工混凝土工程作实地调研的基础上,研究分析杭州湾地区既有海工混凝土结构的腐蚀特点和破坏原因;以海工高性能混凝土为研究对象,着重研究复合胶凝材料体系对混凝土性能的影响,并应用激光粒度仪、EMPA等分析手段,就复合胶凝材料的作用机理进行初步探讨;试验研究混凝土暴露时间、胶凝材料对氯离子的吸附、环境温度、应力和裂缝状态等因素对混凝土中氯离子迁移运动的影响,并结合国内外相关研究报导,探讨这些因素在混凝土使用寿命预测模型中的表征;在上述研究基础上,提出以氯离子侵蚀为基础的海工混凝土使用寿命预测的工程应用模型。
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Mn-complexes in which Mn atom ligand with the N atom within ligand can stimulate the recovery of electron transfer and oxygen evolution. The trinuclear Mn-complex is extremely sensitive to the addition of CaCl2. It is suggested that there is an interaction between Ca2 and carboxyl within the trinuclear Mn-complex during photoactivation and this interaction benefits the ligation of Mn atom to the apo-WOC and form an active WOC. Binuclear MnMn complex shows slightly higher efficiency than binuclear MnMn complex in restoration of O2 evolution activity. It is suggested from our results that recovery of electron transport and O2 evolution with synthetic Mn-complexes is affected by different factors. Cl- can stimulate the reconstitution of WOC at the concentration of over 100mM;the maximal recovery of O2 evolution activity requires the presence of CaCl2 and 33 kDa protein polypeptide together. Bicarbonate can stimulate the reconstitution of WOC.
锰配合物中锰原子与配体中的氮原子配位连接时,能显著恢复电子传递活性和放氧活性;三核锰化合物在重组时对CaCl2的存在非常敏感,我们认为Ca2 与三核锰化合物中的羧基之间存在一定的相互作用,而这种作用有助于锰原子的光配位进而使三核锰化合物易于组装成有活性的水氧化复合物:双核锰化合物MnMn比双核锰化合物MnMn在恢复放氧活性方面更有效;影响锰化合物电子传递能力恢复的因素与影响锰化合物放氧活性恢复的因素不同;在锰蔟重组过程中,氯离子的浓度必须在100mM以上,才能有效进行光重组;最大光重组效率的获得必须有钙离子和33kDa多肽同时存在;碳酸氢根离子促进锰化合物与去锰光系统II的光组装。
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At the heavy metal concentration of 3-4ppm, our study on adsorption capacity, adsorption selectivity of montmorillonite, illite and kaolinite to Cu〓、 Pb〓、 Zn〓、 Cd〓、 Cr〓 shows that the adsorption capacity is mainly determined by the capacity of exchangeable cations and the adsorption capacity of the three clay minerals decreases in this sequence: montmorillonite >> illite>kaolinite. It is found that clay minerals have obvious adsorption selectivity to various heavy metals. Montmorillonite exhibits a stronger affinity to Cr〓 and Cu〓 while kaolinite and illite sorb Cr〓 and Pb〓 more effectively. At the same heavy metal concentration, adsorption amount of clay minerals to heavy metals increase with increasing pH value of the solution.
在痕量浓度下,研究了蒙脱石、伊利石、高岭石三种粘土矿物对Cu〓、Pb〓、Zn〓、Cd〓、Cr〓五种重金属离子的吸附容量、吸附选择性及其介质条件对吸附量的影响,结果表明,粘土矿物的阳离子交换容量越大,对重金属离子的吸附容量也越大,其大小顺序为蒙脱石>>伊利石>高岭石;同时,不同粘土矿物对重金属离子具有明显的吸附选择性,蒙脱石对Cr〓和Cu〓有较好的选择性,伊利石和高岭石则对Cr〓和Pb〓有较好的选择性;随着吸附溶液pH值的增大,其吸附量有增加的趋势。
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The reason may be that complex formed by rhodium and halide was difficult to produce the catalytic active species. Therefore halide ion was the poison for the rhodium catalyst in hydroformylation of olefins in ionic liquid. The effect of double long chain cationic surfactant (DCMAB, dicetyl dimethylammonium bromide) on selective hydrogenation of cinnmaldehyde catalyzed with RuCl3·x H2O/TPPTS was studied.
进一步的研究表明在使用有良好反应活性的两种催化剂HRh3 、Rh_2进行催化反应时,向体系中加入含有卤离子的化合物时将使反应活性大大降低,而且随着卤化物加入量的增加,催化剂的活性迅速下降,这是卤离子可能和金属铑作用使它难于生成催化活性物种,进一步证明卤素离子是引起催化剂活性下降的极其重要的因素。
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On the basis of intrapair and interpair correlation model, we have calculated the pair correlation energies of different kinds of systems, analyzed the changing rules of correlation energies of various electron pairs, and developed a reasonable and simple scheme called "Separating Large System into Smaller Ones". The basic idea of this scheme is that the correlation energy contributions of actual components in the ionic compound can be obtained using the correlation energy of ions with integer charge as the boundary conditions and incorporating the HF wave function or the distribution of electron cloud, then the total correlation energy of the system can be estimated by linearly summarizing the correlation contributions of these components.
在对内对间电子相关能理论模型的基础上,进行各类型化学键分子体系电子相关能的计算,分析电子对相关能的变化规律,建立合理的、&化整为零&的电子相关能简捷计算方案,其基本思想是对于离子键体系以整价离子的电子相关能为边界条件,通过HF波函数或电子云分布求得大体系中实际离子的电子相关能后,进行线性加和,即&化整为零、聚零为整&的思想。
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The bonding energy of a lateritic soil was chan...
作者根据实验材料认为,土壤体系中局部的电场强度较整个体系的平均体积电荷密度在决定离子的结合能方面具有更大意义;在 pH 低时,氢铝离子对交换点的竞争是钾、钠离子的结合能减小的一个重要原因。
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In the thesis, a series of novel single and multi-armed oxadiazole bridging ligands and pyridyl-4, 5-imidazole dicarboxylic acid ligands have been synthesized. The coordination chemistry of these novel ligands with transition metal ions was investigated. In addition, two 1, 3, 4-oxadiazole bridging ligands end-capped by chelating Schiff-base coordination sites have been designed and synthesized. The coordination chemistry based on one of the two ligands with metal ions was primarily investigated.
本文报道了一系列新颖的含1, 3, 4-Oxadiazole杂环的单臂及多臂有机配体,研究了它们与过渡金属离子的配位反应化学;合成了吡啶基-4,5-咪唑二羧酸有机配体,研究了它们在水热条件下与过渡金属离子的配位反应化学;另外,还合成了1, 3, 4-Oxadiazloe杂环桥联的双Schiff-base有机配体,初步探讨了其与过渡金属离子的配位反应化学。
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In order to investigate the effects of thecomposition and structure of the conductive coordinative polymolecular compounds on theirconductivity,we choose the functional organic molecules that can form stable free-radicalions as the ligands,investigate the coordinative bridging interaction of the transition metals orrare earth ions with the ligands and the compositions and properties of the complexes.It willprovide scientific basis for the development and application of new conductive materials.
为了探讨和总结导电性配位高分子化合物的组成及结构与化合物导电性能的关系和规律,我们选择了能形成稳定自由基离子的功能性有机小分子化合物作为配体,研究它们与过渡金属离子及稀土离子的配位桥联作用以及有关配合物的组成和性质,从而为新型导电材料的开发和应用提供科学依据。
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The main content includes:B-Site , and substitutions greatly decrease the dielectric losses ofO3 system ceramics under electric field; because of the different characteristics of different ions and the influence of pyrochlore phase created in system, B-Site and ion substitutions increase the dielectric constant of the system, whereas ion substitutions decrease the dielectric constant of the system.
论文的主要研究内容包括:B位,及的取代均大大降低了O3体系陶瓷在电场下的介电损耗;由于各离子特性的不同及体系中生成的焦绿石相的影响,B位,离子的取代使得体系的介电常数上升,离子的取代却使的体系的介电常数有所下降。
- 推荐网络例句
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For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether
年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。
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Eph. 4:23 And that you be renewed in the spirit of your mind
弗四23 而在你们心思的灵里得以更新
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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.
老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。