上标

The mechanism of vanadium removal from ammonium molybdate solution by ion-exchange was studied. It is found that V and Mo existing in ammonium molybdate solution are in the forms of V3O(superscript 2- subscript 9) and MoO4(superscript 2-), respectively, when V2O5 concentration is about 0.5g/L and the p!

对钼酸盐溶液离子交换钼钒分离机理进行研究研究结果表明，在钼酸盐溶液中V2O5含量约为0.5g/L，钒与钼在pH值为6.5~8.5的范围内分别以V3O(上标 3-下标 9)和MoO(上标 2-下标 4)的形态存在。

The results showed that activity and thermostability of β-amylases were greatly improved by addition of 30 mmol/L Ca(superscript 2+) to soluble starch solution, whereas the formation of reducing sugar was slightly increased by the addition of Ca(superscript 2+) during liquidification.

研究表明，向可溶性淀粉溶液中添加30 mmol/L Ca(上标 2+)，能大大提高β-淀粉酶的活性和稳定性；而液化过程中的外加Ca(上标 2+)盐可使还原性糖的生成量略有提高。

At certain pH, the higher the initial concentration of Pb(superscript 2+) or Cd(superscript 2+) was, the higher the adsorbed amount on goethite was.

在pH一定时，针铁矿对Pb(上标 2+)和Cd(上标 2+)的吸附率随着初始浓度的增加而增大。

Thus it had a good potential application to remove heavy metal ions in waste water containing Pb(superscript 2+) and Cd(superscript 2+) using goethite.

利用针铁矿处理含Pb(上标 2+)和Cd(上标 2+)的污水具有良好的应用潜力。

The presence of these resonance of phosphorus in at least two types of phosphorus environments. The spectra of nanorod contained typical bands of hexahedra Ca(superscript 2+)at 200 nm. The Eg values for the HA of microcrystalline, nanorod samples were 1.60 and 1.64ev, respectively. The FTIR spectra of the nanorods include two types of vibration; three PO4(superscript 3-) stretching modes at 956.5, 1 026.1 and 1 108.7cm^(-1) band were attributed to the vi (PO4), v3 (PO4), v3 (PO4) modes respectively.

结果 HA纳米粒的平均尺寸为。10~30nm；共振分析表明，磷至少以2种类型存在；在200nm波长处，光谱包含六面体Ca(上标 2+)典型的光谱带；HA纳米粒微晶的Eg值分别为1.60和1.64ev；傅里叶变换红外光谱中包含2种振波；在956.5、1026.1和1 108.7cm光带处的3种PO4(上标 3-)曲态分别为v1(PO4)、v3(PO4)、v3(PO4)。

Methods: The expression of P57(superscript kip2) was examined in proliferating, involuting human hemangiomas and normal skin tissues by using immunohisto-chemical technique. Immunohistochemical technique for factor Ⅷ-related antigen was used to identify that the cells which expressed P57(superscript kip2) were endothelia.

采用免疫组织化学方法检测人皮肤血管瘤增生期、退化期及正常皮肤组织中P57(上标 kip2)的表达水平，并结合第Ⅷ因子相关抗原的免疫组织化学染色证实表达P57(上标 kip2)的细胞是血管内皮细胞。

The influence of PO(superscript 3- subscript 4) and Ca(superscript 2+) on the evaluation system of kaoline, a microbial flocculant, was investigated.

研究了PO(上标 3-下标 4)与Ca(上标 2+)对现有的微生物絮凝剂高岭土评价体系的影响。

The transmission ratio exceeded 95% in near-infrared range, so the LCAS:Tm(superscript 3+) glasses can be used as high transmission optical glasses. The integral emission cross-sections outclassed 10^(-18)cm, the fluorescent ratios were higher and the radiative lifetimes were lenger, to the glasses are possible to be used as new laser function materials. The new strong and broad emissive bands for 400nm to 680nm emerge in the emission spectra of the another glasses samples.

高达95%以上近红外透过率表明，LCAS：Tm(上标 3+)玻璃可作为近红外波段高透过率光学玻璃；远大于10^(-18)cm的积分发射截面、较高的荧光分支比与能形成粒子数反转的荧光寿命表明，LCAS：Tm(上标 3+)玻璃可能成为一种新的激光功能材料。

Exposing loaches to water with low concentration of Hg(superscript 2+) for several wee we studied the effect of Hg(superscript 2+) pollution on the distribution and number of 5100-JR structure in the retina.

用含低浓度Hg(上标 2+)的水饲养泥鳅，研究Hg(上标 2+)污染对视网膜中S100免疫反应阳性结构数量及分布的影响。

Gradients of K(superscript +), Na(superscript +) and protein along midgut were determined. The permeability of midgut segments to K(superscript +), Na(superscript +), Ca(superscript 2+), Mg(superscript 2+) and methyl blue was observed.

对中肠细胞进行了组织切片观察；测定K，Na和蛋白质沿中肠的浓度梯度，并观察了中肠对K，Na，Ca(上标 2+)，Mg(上标 2+)和甲基蓝的通透性。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。