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Five bistin Schiff base complexes were synthesized by the reaction of bistin dichloride with Schiff base derived from amino acids and salicylaldehyde in the presence of triethylamine,and were characterized by IR,1HNMR and MS.

二烃基锡配合物的结构类型及其具有较强的抗癌活性引起了人们极大的兴趣。大量的研究表明，有机锡化合物的生物活性主要取决于烃基，但配位基团也有一定的影响[1-3]，尤其在水解、输送等过程中。某些配体对生物活性的发挥还有协同作用。

Synthesis and characterization of Polyaniline nanoparticles in the presence of magnetic field and Samarium ChlorideInteractions of PANI with metal ions give rise to novel chemical and physical properties of the formed macromolecular complex.

一、在磁场和SmCl_3存在下化学合成聚苯胺纳米粒子聚苯胺和金属离子作用形成的大分子配合物具有新颖的化学和物理性质。

In the third section, the fluorescence enhancement effect of Scopoletin by bovine serum albumin in the presence of anionic surfactant anionic sodium dodecyl benzene sulfonate is studied.

论文第三部分研究了在阴离子表面活性剂存在下蛋白质对莨菪葶的荧光增强作用，在此基础上建立了蛋白质的定量测定新方法。

Likewise, I say unto you, there is joy in the presence of the angels of God over one sier that repenteth.

15：10 我告诉你们，一个罪人悔改，在神的使者面前，也是这样为他欢喜。

Moreover, nano-scale SiO〓 particle is as seed, styrene-acrylate-acrylic acid emulsion polymerization and soapless acrylic emulsion are studied from varying the level of SiO〓 particle and reaction temperature, particle size of these emulsions are determined and SiO〓 content of participating polymerization is also determined. Kinetic study is carried out in the presence of nano-scale SiO〓 particle.

此外用原位聚合法制备了纳米SiO〓/苯乙烯-丙烯酸酯复合乳液和无皂丙烯酸乳液，研究了不同SiO〓含量、反应温度等对聚合反应稳定性的影响，测定了所得乳胶粒的粒径，分析了在乳液中SiO〓含量，并进行了在SiO〓存在下乳液聚合反应的动力学研究。

The encapsulated TiO〓 particles by polymer were obtained with soapless emulsion polymerization of methyl methacrylate in water in the presence of the pretreated TiO〓 particles.

一种是用偶联剂钛酸丁酯对亲水性TiO〓粒子进行预处理，钛酸丁酯与TiO〓表面羟基反应，交联到TiO〓粒子表面，使TiO〓粒子表面由亲水性转变为憎水性，改善无机粉体与有机单体的亲合性，再进行TiO〓存在下甲基丙烯酸甲酯的无皂乳液聚合，即可得到TiO〓-PMMA复合粒子：另一种方法是用表面活性剂对TiO〓进行预处理，再进行TiO〓粒子存在下甲基丙烯酸甲酯的无皂乳液聚合，TiO〓粒子表面可形成一层均匀的聚合物膜，提出了包覆机理，指出单体在无机粉体表面发生聚合的关键是预先在粒子表面形成聚合场所，即吸附一层表面活性剂。

It is noteworthy that the "dimmer" in BSiSDTFO did not represent the excimers because of the unique interrupting structure in the presence of spiro framework.

另外，存BSiSDTFO的二聚可能并不代表激基复合物的形成，这可能是由于螺中心的共轭阻断所导致。

At the same time,we have tried the precess for the preparation of 3-exomethylene cepham sulfoxide ester by the improved ring-expanding method over Kukolja, in which the different acid scavengers are employed in the presence of tolune, NCP and stannic chloride.

同时尝试了改进的Kukolja扩环法合成3—环外亚甲基头孢亚砜酯。以甲苯为溶剂，NCP为卤化试剂，无水SnCl_4为路易斯酸，通过选用了不同的酸清除剂，以制备闭环产物。

The flotation behaviour of platinum from stannous chloride-malachite green-water system in the presence of ammonium sulphate was studied.

研究了在盐酸介质中硫酸铵存在下氯化亚锡-孔雀绿-水体系浮选分离铂的方法。

It is found that in the presence of butyl titanate or stannous oxalate as a polycondensation catalyst the carboxyl content is not always on the increase in all high vacuum stage.

发现，钛酸四丁酯或草酸亚锡作为缩聚催化剂时，在整个高真空阶段羧基含量并不是一直增加的。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。