查询词典 O

Nanostructured zirconia doped with yttria was prepared by co-precipitate method. The structures were characterized by X-ray diffraction and Extend X-ray absorption fine structure . The influences of calcined temperature and Y〓O〓 concentration on structure in crystallization process were studied systematically.

1利用XRD和EXAFS方法对共沉淀方法制备的非晶和纳米ZrO〓：Y〓O〓的结构进行了表征，比较系统地研究了不同处理温度和不同Y〓O〓掺杂浓度在其晶化过程中对结构的影响，并讨论了氧空位所处的位置。

Any I/O load whose consecutively issued read and/or write requests do not specify adjacently located data.

指任何I/O负载。在这种I/O负载中，连续发出的非相邻位置的数据读写请求。

The cultural condition of PGPR strains Temperature,pH,light,cultural method,acid or alkali producing,and salt tolerance of 9 PGPR strains isolated from Gramineous Forage were tested,the results showed that all the PGPR strains could grow in the temperature range from 5℃～45℃,and optimum temperature for 178,O-6,Dry6 strains was 35℃,for X5,173,Y5,C-6 strains was 30℃,for N4 strain was 25℃～35℃,for 86 strain was 25℃;most of PGPR strains prefered to neutral or alkaline condition,strains 178,O-6,N4 and X5 were preferable to alkali condition especially;light was beneficial to PGPR's growth;all of them produce alkali;most of PGPR strains were not sensitive to NaCl concentration;all the strains were aerobiotic bacteria.

结果表明：各供试菌株对温度的适应范围较广，在5℃～45℃范围内均能生长，178、O-6、Dry6 菌株的适宜生长温度为35℃，X5、173、Y5、C-6 菌株的适宜生长温度为30℃，N4 菌株的适宜生长温度为25℃～35℃，86 菌株的适宜生长温度为25℃；大部分菌株在中性或偏碱性的条件下生长好，特别是Dry6、N4 和X5 菌株对碱性环境适应性强，在pH 值8.0 时生长最好；光照有利于菌株的生长；绝大部分菌株在3%NaCl浓度下生长良好，在5%～7% NaCl 浓度下除173 和86 菌株外，其它菌株都能生长，即对盐份的耐受性较好，且9 个菌株均为产碱菌；除173 菌株是兼性厌氧细菌外，其它都是好氧性细菌。

In the design part of the PLC control, the paper has explained the design process of the PLC I/O hookup, provided the choice result of the PLC and the PLC I/O elements, and has explained the design process of the PLC user program in detail, which includes the exposition to the design process of the public program, manual program, autoloading program signal showing and trouble alarm program.

在PLC控制的设计部分中，阐述了PLC I/O接线图的设计过程，给出PLC及其输入/输出元件的选择结果，详细地阐述了PLC用户程序的设计过程，其中包括对公用程序、手动程序、自动程序、信号显示与故障报警程序的设计过程的阐述。

Experimental results show that the incorporation appropriate amount of Al into SO〓〓/ZrO〓, SO〓〓/TiO〓 and SO〓〓/Fe〓O〓 is helpful to stabilize the sulfur species on catalyst surfaces and to improve the superacidity and catalytic activity for benzoylation of toluene with benzoyl chloride.

实验表明，向SO〓〓/ZrO〓、SO〓〓/TiO〓和SO〓〓/Fe〓O〓中引入适量的Al〓O〓，有助于稳定样品表面的硫物种，提高样品的超强酸性和对甲苯的苯甲酰化反应活性。

SO〓〓/M〓O〓 solid superacid was applied to the photocatalytic oxidation of organic pollutants for the first time. Porous SO〓〓/TiO〓 solid superacid catalysts with high specific surface area were prepared by sol-gel method. The photocatalytic degradation of bromomethane was used as model reaction. The influence of impregnation with H〓SO〓 solution on the structure of catalysts and their photocatalytic performance was systematically studied by using X-ray diffraction, X-ray photoelectron spectroscopy, N〓 sorption analysis applying BET method, UV-Vis diffuse reflectance spectroscopy, FTIR spectroscopy, O〓-TPD and photocatalytic activity measurement. The acidity of TiO〓-based catalysts was investigated by Hammett indicator method, NH〓-TPD and IR spectra of pyridine adsorbtion. The mechanism of superacidifing effects on photocatalytic performances such as the photocatalytic degradation rate of bromomethane, apparent kinetic constant and apparent quantum efficiency was discussed.The results indicated that SO〓〓 is combined with metal ions of TiO〓 in a chelating bidentate mode.

本文首次将SO〓〓/MxOy型固体超强酸催化剂用于光催化氧化有机污染物研究，采用溶胶-凝胶法制备了具有多孔性和大比表面结构的二氧化钛基固体超强酸光催化剂SO〓〓/TiO〓，以光催化降解溴代甲烷为模型反应，系统地研究了H〓SO〓浸渍处理对催化剂表面酸性及其气相光催化性能的影响，结合XRD、BET、XPS、FTIR、Hammett指示剂法、吡啶吸附红外光谱、NH〓-TPD、O〓-TPD、紫外可见漫反射光谱等多种表征手段，深入地讨论了超强酸化对TiO〓的改性机理，阐明了引起SO〓〓/TiO〓超强酸催化剂光催化降解溴代甲烷的转化率、表观反应速率常数和表观量子效率变化的本质原因。

It is necessary for preparing the Y-Ba-Cu-O superconducting ceramic with high quality that the equilibrious liquid phase in the sintering should be prevented by selecting ceramic composition or sintering temperature.

在此基础上，独创了银套Bi-Pb-Sr-Ca-Cu-O超导带的升温处理新工艺，试验了Y-Ba-Cu-O超导陶瓷变氧压处理作低温织构生长的可能性。

The influence of sintering temperature and composition on the microstructure of Y-Ba-Cu-O superconducting ceramic prepared by reactive sintering was investigated. While the oxide powders react and sinter into the superconductor, transient liquid phase can disappear rapidly, and equilibrious liquid phase can promote the anisotropic growth of superconducting grains and isolate the grains.

本文运用X射线衍射、光学金相、扫描电子显微分析、热分析等材料研究手段研究了Y-Ba-Cu-O和Bi-Pb-Sr-Ca-Cu-O两个体系超导陶瓷的超导相与显微组织的形成过程，着重研究了液相在此过程中的作用，同时考察了显微组织与超导性能间的关系。

Oxygen ion beam of 6.0 MeV was selected as incident ion, and the ERD spectra were detected at the angle of 30°, then the cross-sections for O to D and T are Rutherford cross section under this experiment condition.

以6.0 MeV O粒子作为入射粒子，在30°方向上探测反冲粒子，在此实验条件下，O粒子对D、T的碰撞截面为卢瑟福截面。

By fortifying our Wheat-O cereal with soy protein, we canabout their health. This new version of Wheat-O should increase company

通过在我们的Wheat-O麦片中添加大豆蛋白，我们可以通过吸引更多的关注自身健康的消费者来增加销量。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。