离子结构

Aim The relations between the fine-spectra and local structure of 3d3 ions at trigonal crystal field have been investigated.

目的研究三角晶场中3d3离子光谱精细结构和晶体局域结构之间的关系。

The afterglow of the 4f-4f and charge-transfer transition of the trivalence rare earth ions has been prepared by the incorporation of the RE〓 into Y〓O〓S host.

我们同时也合成出了具有纳米管和纳米棒状的准一维铝酸盐纳米结构。并在中等带隙ZnO（3.3eV）半导体中掺入稀土离子来对其纳米结构的生长形貌和光致发光性能进行调制。

Next, the change of inorganic layer from CuCl2 to ZnCl2 was adopted and a series of alkylammonium zinc chloride hybrid perovskite (C4nH8n+1NH3)2ZnCl4(n=1, 2, 3) was prepared.

在研究了有机层的变化对钙钛矿结构和性能影响的基础上，我们也研究了金属离子不同造成的无机层的变化对钙钛矿结构和性能的影响。

The invention also relates to a preparation method of the selective infrared absorption material of the amino adipate with the intercalation structure, which is characterized in that hydrotalcite LDHs is taken as a precursor, and organic matter of aminoacetic acid is intercalated between the hydrotalcite LDHs layers by an ion-exchange method and then assembled to obtain the IDAs-LDHs with a good crystal phase structure and excellent performance.

本发明还涉及该氨基二乙酸插层结构选择性红外吸收材料的制备方法，以水滑石LDHs为前体，采用离子交换法将氨基乙酸类有机物插入到LDHs层间，组装得到晶相结构良好、性能优异的IDAs-LDHs。

Magic number CoGe10(superscript -), CoSn10(superscript -) and CoPb10(superscript -) may have bi-capped tetragonal antiprism structure and CoPb12(superscript -) is icosahedral structure.

幻数离子CoGe10、CoSn10和CoPb10可能具有双帽四角反棱柱结构，而CoPb12可能具有二十面体构型，钴原子均为笼状结构的中心。

Thunberg Fritillary Bulb is one of the most popular Traditional Chinese herbs. Some trials in vivo and animals indicated that Peimine and Peiminine, extracted from Thunbery Fritillary Bulb, have the function of reversing MDR of two different kinds of mechanisms. They can improve the cytotoxic of ADR to cancer cells by 5～10 folds under concentration of 10% cancer cell growth inhibitory rate. Peimine and Peiminine not only feather typical character of modifier of MDR, but also differ from other moldifiers such as Calcium channel blocker, Cyclosporines in chemical structure, they belong to cevine groups alkaloid, a subgroup of C-Nor-D-homosteroid alkaloid.

浙贝母是临床常用中药，体外及动物试验证明，浙贝母中的有效活性成分贝母甲素和贝母乙素具有逆转肿瘤细胞MDR的作用，而且能逆转两种不同机制的多药耐药肿瘤细胞的耐药性，在无明显细胞毒剂量下，可使阿霉素对耐药肿瘤细胞的杀伤活性提高5-10倍，不但具备明确的多药耐药逆转剂的特征，而且在化学结构上属异甾类生物碱中的瑟文类生物碱，完全不同于钙离子拮抗剂、免疫抑制剂和其它现有的耐药逆转剂，具有作用靶点宽、化学结构独特的特点。

Ionomer membrane containing cobaltous ions, exhibiting CO2 facilitated transport and higher acoi/M value are not ample conditions, but are important factors.

离聚体膜含有钴离子、对CO_2具有促进输送作用以及具有较高的αCO_2/N_2是重要的因素，但还不是充分条件，还可能同时与高分子膜的化学结构、聚集态结构及未知因素有关。

Ionomer membrane containing cobaltous ions, exhibiting CO2 facilitated transport and higher acoi/M value are not ample conditions, but are important factors. The key reasons for the occurring of reverse permeation behavior should be attributed to the polymeric chemical structure and the morphology structure of the membranes as well as other possible unknown factors.

离聚体膜含有钴离子、对CO_2具有促进输送作用以及具有较高的αCO_2/N_2是重要的因素，但还不是充分条件，还可能同时与高分子膜的化学结构、聚集态结构及未知因素有关。

During the titration of Ca〓CaM by La〓, the hydrid complex La〓Ca〓CaM forms as the intermediate species. La〓 can bind to calmodulin with high affinity (K〓=10nmol/L) and obvious cooperation between the two global domains. The secondary structure of La〓CaM and Ca〓CaM are highly similar, but there are obvious differences in ternary structures. Excessive La〓 changes the conformation of calmodulin greatly.

实验结果表明，La〓在钙调蛋白上的结合位点与钙离子相同；在结合顺序上La〓以较小的优势先结合在钙调蛋白的N末端；La〓Ca〓CaM是La〓与含钙的钙调蛋白作用时的主要产物；La〓强烈地与钙调蛋白结合，其解离常数约10nmol/L，各个结合位点之间存在明显的协同效应；La〓CaM与Ca〓CaM在二级结构上高度相似，但是在高级结构上有明显差异。

At the present time, It is a major method of research on the thermostability of thermozymes to compare the homology of amino acid sequence between thermozymes and mesophilic enzymes.

螺旋的稳定性使嗜热酶在二级结构上更稳定。在高级结构中，&额外&的离子键、疏水作用、氢键、寡聚体的形成等对嗜热酶的耐热性起主要作用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。