上标

The photocatalytic activities of TiO2 nanopowders co-doped with Eu(superscript 3+) and Y(superscript 3+) were tested for degradation of methyl blue solutions.

以甲基蓝溶液为目标污染物，考察了Eu(上标 3+)和Y(上标 3+)双稀土离子共掺杂TiO2纳米粉体的光催化活性。

Nano-TiO2 co-doped with La(superscript 3+)-Fe(superscript 3+) was prepared by sol-gel method and the photocatalystic activity under ultra-violet light was evaluated by photocatalytic degradation of methyl blue.

采用溶胶－凝胶法制备了La(上标 3+)-Fe(上标 3+)共掺杂的TiO2纳米粉体，并以亚甲基蓝溶液为目标降解物研究了掺杂纳米TiO2粉体在紫外光作用下的光吸收和光催化性能。

Acting as an antenna molecule in the supramolecular system, Mg(superscript 2+)-HA remarkably enhances the photoinduced electron transfer efficiency between C60 and an electron donor, N, N-dimethylaniline.

作为超分子体系中的光捕获分子，Mg(上标 2+)-HA能显著地提高C60与N，N-二甲基苯胺的光诱导电子转移反应效率，生成的C60负离子自由基的电子自旋共振光谱信号强度比未加入Mg(上标 2+)-HA时增强了9倍左右。

Trigyna enhanced with season, being consistent with its growth rhythm. Comparing with other xerophytes, R. trigyna had very low (Ψ and (Ψ, presenting its strong ability of maintaining high osmotic pressure and low water potential.

说明长叶红砂在季节变化中历经了逆境锻炼，其耐水分亏缺能力随5、7、9月逐渐递增，这与植物的生长发育节律相吻合；与其他荒漠旱生植物相比，长叶红砂的Ψ(上标 sat 下标 s和Ψ(上标 tlp 下标 s值非常低，具有很强的忍耐高渗压和维持低水势的能力。

The promotion of K (superscript +) uptake of three wheats had a positive relationship with Ca (superscript 2+) concentration.

Ca(上标 2+)对3种小麦的总吸钾速率均有促进作用，且这种作用随着Ca(上标 2+)浓度的增加而增加。

In the treatment of N(subscript 2-3)(600 kg/ha averagely applied three times), the NO(superscript - subscript 3)-N concentration in new-grown leaves was 92.66g/g, which was the highest in the three types of leaves on H2, and was still lower than the potential toxicosis dose for animals.

高氮水平和分次施肥是造成同一类型叶片NO(上标-下标 3)-N累积的主要原因；高氮分次施肥处理(N2.3)第二期收获的新生叶NO(上标-下标 3)-N含量最高，为92.66g/g，这一数值尚未达动物摄食的潜在致毒剂量。

It was shown that the insertion of In into solid phase may proceed underpotential deposition mechanism involving two different routes: In(superscript 3+) reduction by induced effect of Cu3Se2, and/or reaction with H2Se. The newly generated In and indium selenides may be assimilated into the formation CuInSe2 by reaction with copper selenides.

研究结果表明，铟进入固相是通过In(上标 3+)受Cu3Se2诱导作用欠电势还原或者In(上标 3+)与H2Se反应这两种途径实现；先沉积的Cu3Se2与新生成的铟或铟硒化合物反应最后生成CuInSe2。

Three types of humic acids, i.e. peat, lignite and weathering coal (named as C-HA, H-HA and F-HA, respectively), were extracted and stability constants of Mn(superscript 2+) and Zn(superscript 2+) with the three humic acids were investigated.

以分别来源于草碳、褐煤和风化煤的腐殖酸为供试材料，采用离子交换平衡法研究了不同腐殖化程度的腐殖酸与Mn(上标 2+)和Zn(上标 2+)的络合稳定常数，并探讨了环境pH值对络合稳定常数的影响。

The experiment results indicate that higher phase splitting speed and extraction factor can be achieved when low-carbon alcohols such as n-butanol are used as organic solvents; by using five different N-carbobenzyloxy-L-amino acids as chiral ligands that are formated with Cu(superscript 2+) or Ni(superscript 2+), it is found that as a ligand, Z-Phe has a low extraction factor, while Z-Hyp, Z-Pro, Z-Glu, Z-Val have higher extraction factors, and among these, Z-Val has the highest distribution coefficient; pH value of extractant, when near to the PI of phenylalanine, helps to improve extraction resolution effect; temperature has no obvious effect on the resolution result.

结果表明：以低碳醇类正丁醇作有机稀释剂，所用5种N-苄氧羰基氨基酸（分别为Z-Phe、Z-Hyp、Z-Pro、Z-Glu、Z-Val）与Cu(上标 2+)或Ni(上标 2+)形成手性配位体后，以Z-Val作手性配体，萃取相pH值接近苯丙氨酸等电点时，萃取拆分效果最佳。

When Mg(superscript 2+) concentration increased, the fresh weight and dry weight of maize sad soybean decreased ,but they both showed some adaptability The growth of radicles and seedlings in maize and soybean were obviously inhibited by Mg(superscript 2+) and atrophy and dysplasia phenomena appeared.

随着Mg(上标 2+)浓度升高，玉米和大豆的鲜重和干重降低，但均表现出一定的适应性。玉米和大豆幼根和幼苗生长受Mg(上标 2+)抑制明显，普遍表现出萎缩、发育不良现象。

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。