最佳化的

In this dissertation, we optimized the thinkness of each layer of TFEL devices using the layered optimization method to obtain ZnS: Ce〓 TFEL devices. Accoding to the energy level structure of Ce〓, two criteria for distinguishing the EL of Ce〓 were found out, from which it was conduded that the TFEL of ZnS: Ce〓 comes from 5d→4f transition of Ce〓. The measurement of brightness waveform showed that the TFEL of ZnS: Ce〓 was the luminescence from independent centers. and there were the field induced-delocalization in this process anf it〓s the cause of low TFEL efficiency of ZnS: Ce〓. In this dissertation, different influence factors on TFEL of ZnS: Ce〓 were sdudied. The influence of different host lattice is different: The blue/green ratio of ZnS: Ce〓 in hexagonal system of ZnS is larger than that in cubic system of ZnS, and the TFEL peaks in hexagonal system of ZnS moves toward longer wavelength compared with that in cubic system of ZnS. The adding buffer layer was used in this stage. The solubility of Ce〓 in ZnS was small and it was another limit to TFEL brightness of ZnS: Ce〓 device. The solubility of Ce〓 increased ten times when using Li ions as flux, so that the TFEL brightness of ZnS: Ce〓 was enhanced. It was found that the appearing of ZnO in active layer improves the TFEL of ZnS: Ce〓: the brightness and the wave range of ZnS: Ce〓TFEL were enhanced.

本文采用TFEL的分层优化方案，优化组合了各膜层厚度，选择最佳制备条件，得到了ZnS：Ce〓的TFEL；根据Ce〓的能级结构，找到了判别Ce〓的EL的两个简单依据，并据此断定ZnS：Ce〓的TFEL的两个发射峰分别属于Ce〓的〓和〓跃迁；亮度波形测量表明ZnS：Ce〓的TFEL属于分立中心发光，分析认为在此过程中存在着较严重的场致离化，这也是ZnS：Ce〓的TFEL效率较低的一个原因；本文考查了影响ZnS：Ce〓的TFEL的各种因素，发现：基质的晶体结构对ZnS：Ce〓的TFEL有所影响，在六角相ZnS中Ce〓的TFEL优于立方相ZnS中Ce〓的TFEL：发射峰的蓝-绿比相对较大，且光谱向短波方向移动，在此项研究中本文采用了在发光层前增镀过渡层的办法，过渡层为六角晶相的ZnO；限制ZnS：Ce〓的TFEL器件亮度的一个原因是Ce〓在ZnS中的溶解度低，本文用Li离子作助溶剂增大了Ce〓的溶解度，增大幅度为一个量级，并且ZnS：Ce〓的TFEL亮度明显提高；从ZnS：Ce〓的TFEL光谱来看ZnS：Ce〓的TFEL波长覆盖范围较小，亮度也不高，达不到做为白色TFEL材料的要求，需要寻找新的白色TFEL材料；在研究ZnS：Ce〓的TFEL中还发现：发光层中ZnO的出现有利于ZnS：Ce〓的TFEL：发射峰变宽、亮度增大。

From the angle of development trend, the author believes that in the present age lacking of cosmopolitan authority but with limited order, sovereignty transference is the reasonable being during the transition stage of the world system. One of the essentials of the sovereignty transference is to confine the freedom of the national action felicitously in the fragmentized and homogenous world and seek the optimal point of equilibrium between the national and international interests.

从发展趋势看，主权让渡不会使国家回到传统的&主权封闭&，更不会使&主权消亡&，在目前这样一个没有世界性权威却存在有限秩序的时代，主权让渡是世界体系处于一种过渡阶段的合理存在，主权让渡的要义之一就是在碎片化和统一性的世界中恰当地对国家行动的自由进行限制，寻找国家利益与国际利益的最佳平衡点。

A series of complete and systematic algorithms on preprocessing of handwriting image is proposed for freeformat handwritten Chinese characters . The connected character removing is carried out by combining statistical characteristic of characters width with the gauss distribution. According to the location of valley point on projecting images, a threshold value is selected as best division point resulting to the easy realization of size normalizing, character mosaicand line slope correction.

针对自由格式的手写体汉字，提出一套系统完整的笔迹图像预处理算法，其中我们将汉字宽度的统计特性与高斯分布的特性结合进行粘连字的滤除，然后根据粘连字的投影图中波谷点的位置，选择某一阈值作为最佳切分点将其分割开来，从而很容易实现了字符大小的归一化、汉字的任意拼接和行倾斜的校正。

In terms of the water-in-oil emulsion theory, emulsion materials, emulsion methods, main additives and the volume ratio of oil and water were selected and then a basic formulation of the water-in-oil emulsion fracturing fluid was screened out. On the base of it above, the optimal formulation was optimized following the properties of reservoirs of Gars oil field, Qinghai Province and the performance of it was evaluated referring to SY/T5107-95. In the end of this paper, a idea of job design and technologies of fracturing optimize of the water-in-oil emulsion fracturing fluid were put forward.

论文首先从油包水乳化液的理论研究入手，通过对乳化材料、乳化方法的评选以及乳化剂、稠化剂、破乳剂、助排剂等添加剂和油水体积比的评选实验，筛选出了基本满足要求的油包水乳化压裂液配方体系：在此基础上，根据青海尕斯油田中浅层油藏的特征，进一步优化出符合该油藏条件的最佳配方压裂液体系，并参照石油与天然气行业标准SY/T5107-95对该配方油包水乳化压裂液进行了性能评价：最后提出了可行的油包水乳化压裂液施工设计思路及相应的压裂优化技术。

Indeed, without such a centralized administration, the execution of any such gigantic scheme as Pan-Germanism, extending necessarily over a long series of years and requiring continuity of policy and careful preparations for eventualities known of necessity only to a few, would be utterly impossible. In England and in France, power is distributed in too many hands to make continuity of policy and vigor of administration really possible; in Russia, the country itself is too large to be directed efficiently by a single head; in Germany, the happy mean is found.

只有在集权化政府的环境下，象泛日耳曼主义（Pan-Germanism）这样宏大的蓝图的执行（它要求的时间跨度长达持续数年，要求政策的连续性和仔细的准备以使得只有必要的一小部分人才知道最终结果）才能获得最大限度的可能；在俄国，国家本身的过于臃肿使得由一个寡头来进行有效管理成为不可能；在德国，人们找到了最佳方法。

The relevant experiments illustrates A.C. power is more suitable for deicing or snow-melting than D.C. Silica fume can improve the dispersion of carbon fibers and then reduce the electrical resistivity of carbon fiber cementious composites. At a certain volume content, when the ratio of cement, sand and stone is l:l:2, the properties of the CFRC is the best on the whole.

大量实验研究发现：采用交流电是碳纤维导电混凝土用于融雪化冰时的最佳电源选择；采用硅灰能较好地提高碳纤维在基体中的分散性，有效降低碳纤维水泥基复合材料的电阻率；并在现有的级配比实验中发现了具有最好综合性能的配比，即在相同的纤维体积含量的情况下，导电混凝土的具有最好综合性能的配比是水泥、砂子、石子的重量比为1：1：2。

Further more, the simplified analysis method on stressed-skin effect of corrugated steel sheet is also discussed in detail.

此外还比较详细地探讨了蒙皮效应的简化分析方法。

If I had known her telephone number,I would have called her.

要是我知道她的电话号码，我就打电话给她了。