锌

In this paper, the electroplating of bright Zn-Ni alloy process was studied, the effect of (1-hydroxy ethylidene diphosphonate acid coordinating agent, chloride content, [Zn2+]/[Ni2+] mole ratio, cathode current density, temperature, a class of aldehyde compound (abbreviated as ZNP additive agent) and supplementary coordinating agent on Ni content, and brightness of plating layer was discussed, the physical phase of alloy plating layer and stability of plating solution were determined.

研究了用有机多膦酸盐作络合剂，ZNP作添加剂电镀光亮锌镍合金，探讨了络合剂、氯化物含量、[Zn2+]/[Ni2+]比、阳极电流密度、温度、辅助络合剂对合金中镍含量的影响，测定了合金镀层中物相组成及镀液稳定性，通过筛选得出最佳最镀光亮锌镍合金的镀液组成及工艺条件，并讨论了锌镍合金的异常共沉积机理。

The trivalent chromium passivation film based on zincate plating obtained has compact structure with no obvious crack, and excellent anticorrosion performance. Different compositions are detected from the surface to inner film, the surface mainly contains Cr2O3-Cr3-ZnO compound, the inner (1030 nm to surface) composes of Cr2O3-ZnO-Zn.The forming process of passivation film possibly consists of four steps which are zinc dissolution, basic area appearance, gelatiniform film forming and converting to passivation film.

结果表明：锌酸盐镀锌层的三价铬钝化膜表面结构致密、无明显裂纹，具有较好的耐腐蚀性能；这种钝化膜表层与里层的组成不同，表层的组成为Cr2O3-Cr3-ZnO共混物；里层(离表层10~30 nm处)的主要组成为Cr2O3-ZnO-Zn共混物；钝化膜的成膜过程可能包括镀锌层的溶解、碱性薄层的形成、胶状膜的形成和胶状膜转化成钝化膜4个步骤。

It was found by means of protein fluorescence detection that the number of MAP-2 masculine neurone in the hippocamp of AD rat in model group and zinc reinforce post-AD group decreased distinctly. There was not distinct difference in the MAP-2 expression and the number of MAP-2 masculine neurone between normal group and zinc reinforce pro-AD group.

模型组和AD后补锌组大鼠海马区MAP-2蛋白表达与正常组大鼠相比显著下降，MAP-2蛋白荧光检测发现模型组和AD后补锌组大鼠海马区MAP-2阳性神经元数量明显减少，AD前补锌组大鼠海马区MAP-2蛋白表达和MAP-2阳性神经元数量与正常组相比差异无显著性。

A new approach for comprehensive utilization of zinc residues from hydrometallurgical industry of zinc was proposed in this paper.

为了探讨冶锌工业废渣综合利用的新途径，采用湿磨分离金属锌、酸浸制取锌盐的工艺进行了试验研究。

In the hydrometallurgical process of zinc, the fluctuation of impurities concentration in the electrolyte has a serious influence on technical parameters.

阐述了湿法炼锌过程中，由于电解液中杂质的波动对锌电积过程主要技术经济指标产生的严重影响，分析了金属杂质、骨胶浓度与阴极过电位和电流效率的关系，提出了利用阴极过电位对锌电积最佳添加剂浓度及新液质量的控制方法。

The nonsulfide zinc deposits are divided into two types of supergene and hypogene nonsulfide zinc deposits. The former is the most common, and the latter mainly includes structural controlled metasomatic deposit and manganese-enriched jet-type layered deposit.

该类矿床通常被划分为浅成和深成两种类型，浅成锌矿床是非硫化物锌矿床最常见的类型，深成非硫化物锌矿床主要有构造控制交代矿体和富锰喷流型层状矿体。

It also showsdependence in Zn-Fe and Zn-Mn. Microelement analysis indicates genetic type of Furong tinallotment is nearly magmatic hydrothermal deposit by content of In, Ga and Cd and thetemperature of mineralization is speculated about 235～248℃ by the value of LogGa/Ge, Zn/Cd,which means sphalerite occurred under mesothermal temperature.

对闪锌矿等离子质谱微量元素分析显示，闪锌矿中In、Ga、Cd等元素的含量表明其成因类型与岩浆热液型基本一致；微量元素LogGa/Ge、Zn/Cd的比值计算和推测出矿化形成的温度为235～248℃左右，表明郴州芙蓉矿田闪锌矿为中温条件下的产物。

This thesis is made up of two sections,The goal of the first section is to study the new reaction of organozinc reagents and applicability of it in the organic reaction.

本论文主要有两部分构成，前半部分主要工作是对有机锌试剂新反应的研究，考察有机锌试剂在这些反应中的适用性，以扩展有机锌试剂在有机合成中的应用范围。

Because there are many articles about organozinc reagents react with aldehyde, we investigated the preparation of bisorganozinc reagents and its reactions.

第一章：有机卤化锌试剂在有机合成中研究进展本章主要对有机锌试剂，特别是带官能团的有机卤化锌试剂的产生、发展、制备及其在有机合成中的应用作了详细的综述。

Tell from angle of doctor of traditional Chinese medicine, oyster can make the hydrosphere inside body expedite, this meant the nephritic load that supervises hydrosphere to reduce; Western medicine thinks, enough zinc can assure the amount of spermatozoon and character, and oyster is to contain one of provision with most zinc, eat 2 ～ everyday the zinc that round-the-clock place wants 3 ostracean enough bodies.

从中医角度讲，牡蛎能使体内水气畅通，这意味着管理水气的肾脏负担减轻了；西医则认为，足够的锌能保证精子的数量和品质，而牡蛎是含锌最多的食品之一，每天吃2～3个牡蛎就足够身体全天所需的锌。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。