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A study on the metal ion-extractant interaction in the extraction of ncodymium and other trivalent lanthanide ions with monoacidic organophosphorus compounds by means of IR, NMR and electronic spectra is presented in this dissertation.

本文运用IR、NMR、电子光谱等手段研究了烷基磷酸在萃取Nd等三价镧系离子时的配位作用，通过f—f吸收光谱计算进行了Nd

The rules and relationships betweenspectroscopic characters of〓ions inzeolites ZSM-5,Beta,Mordenite and L,and calciningconditions were obtained.

得到了含稀土离子的ZSM-5、Beta、丝光沸石和L型沸石中〓〓等离子的光谱变化规律及与焙烧处理条件的变化关系。

More and more chemists pay attention to study the influence of metal ions, multidendate ligands, synthetic routes and synthetic condition on the formation and the structural characterization of multinuclear compounds.

人们已经发现，在某些情况下多啮Shift碱配体可以与过渡金属形成结构类型各异的多核配合物。

In this dissertation, six novel multinucleate complexes were synthesized by using transition metal ions as spin carri...

本硕士学位论文共合成六种多核配合物，并对其结构进行表征。

The influences of some metal ions in seawater treated by Cephlex 100 on metamorphosis, growth and activities of alkaline phosphatase and ATPase in mysis and postlarvae of Chinese prawn Penaeus chinensis were studied.

向经过螯合剂Cephlex 10 0处理的海水中添加金属离子，进行培养中国对虾糠虾幼体和仔虾幼体，观察金属离子对变态发育及其体内碱性磷酸酶和ATPase活性的影响。

The PMR can be understood by the tunneling process between ferromagneticclusters which is induced by the Ga ions at the antiferromagnetic natrix.

我们研究得出的结论认为这种反常的现象可能是和均匀分布在反铁磁绝缘基体上由Ga离子诱导产生的铁磁团簇之间的隧穿过程相关。

In the absence of an appreciable magnetic field, the ensemble of nebular electrons interacts with ions to emit weak continuous radiation by free-free and free-bound transitions

在不存在可观的磁场时，星云中的电子系综与离子相互作用可通过自由-自由和自由-束缚跃迁而发射弱连续辐射。

This paper describes the determination on the activity of carbonic anhydrase (CA,EC4.2.1.1) of plant species in karst areas of Southwest China. CA was extracted from leaves of Vitex negundo. The thermostability of CA and the effects of anions and metallic ions on CA activity were investigated.

研究表明西南岩溶地区几种植物叶片中含有明显活性的碳酸酐酶(carbonic anhydrase， CA)，从黄荆叶片提取碳酸酐酶，该酶具有良好的热稳定性。

Ray analysis has shown that copper ion and zinc ion are significantly concentrated in the neurophil of AD patients, which suggests that imbalances of metal ions may be related to the pathogenesis of AD.

射线分析显示有大量Cu2＋和Zn2＋集中到患者的大脑中，暗示了这些失调的离子与AD疾病有关。

This paper investigated the effects of environmental factors, such as, pH, buffer capacity, the concentration of chloride ions and the concentration of nonaggressive anions, on the crevice corrosion potential E_(cc of Type 304 stainless steel. The E_c was ascertained by galvanodynamic polarization.

本实验主要研究pH 值、缓冲容量、氯离子浓度及其缓冲溶液中其它阴离子浓度等环境因素对304 不锈钢缝隙腐蚀电位的影响，缝隙腐蚀电位由动电位扫描确定。

"Please accept this talisman as a token of our thanks."

请收下这个护身符以表达我们的感谢。

If I have that magic, I will be more acceptable in the society.

如果我拥有那种魔法，我将更加被这个社会所容纳。