有系统地

Scattering characteristics are studied of inhomogeneous cylinders immersed in an absorbing medium illuminated normally by plane waves. Scattering and extinction cross sections are derived, and the efficient algorithm is presented. Scattering matrix is simulated and discussed.

系统地解决了吸收介质中非均匀柱粒子对垂直入射平面波的散射问题，包括散射场、散射截面、消光截面的解析解，提出了快速、有效的计算方法；数值模拟了均匀、非均匀圆柱的散射矩阵，并与已有文献发表结果对比。

A series of platinum terpyridyl acetylide complexes were designed and synthesized, which exhibit 〓MLCT emission with high quantum yield and long lifetime in the fluid solution at room temperature.

本论文设计、合成了一系列炔基为辅助配体的多吡啶Pt络合物，系统地研究了它们的光物理性质，探讨了其在超分子化学中的应用，取得了一系列有意义的研究结果：一。

Determination of vapour content in chlorine gas is very important in chlor-alkali production,and determination accuracy is considerably influenced by a certain amount of sulfuric acid mist in chlorine gas.

气氯中水分的测定在氯碱生产中是非常重要的，但气氯中含有微量硫酸酸雾对测量的精度有一定的影响，文中较为系统地叙述了测定气氯中硫酸酸雾的原理和过程，具有一定的指导性。

A review of the literature in Taiwan revealed a lack of recent systematic analysis on dysphasia. The purpose of this article was to discuss dysphasia within the concept analysis framework provided by Walker and Avant (2004). This article verified and confirmed the conceptual characteristics of dysphasia; identified antecedents and consequences; and elaborated on previous cases (including model, borderline, contradictory, and related cases).

虽然目前有不少的文献探讨吞咽障碍的评估与处置，但并无针对吞咽障碍作有系统的概念分析，故本文依Walker及Avent(2004)提出概念澄清与分析方法来进行吞咽障碍的概念分析，广泛性地查证此概念之定义及确认吞咽障碍的概念性特徵，并且列举典型、边缘与相反案例作说明，同时确认吞咽障碍发生的前因与后果并阐述相关实证资料。

According to the existence results of general equilibrium problems and vector equilibrium problems have been studied more and more. Inspired and motivated by these research results, this paper is devoted to study systematically a class of equilibrium problems, which is unify and extension of a large number of known equilibrium problems and variational inequalities problems. The research is carried on from three aspects.Firstly, in finitely continuous topological spaces, we introduce four new types of the system of generalized vector quasi-equilibrium problems, and we derive some existence results of a solution for the system of generalized vector quasi-equilibrium problems via the maximal element theorems in product finitely continuous topological spaces.Secondly, in complete metric spaces, we provide the Ekeland variational principle to equilibrium problems with set-valued maps. And via the Ekeland variational principle, existence results for vector equilibrium problem with set-valued maps and the system of vector equilibrium problem with set-valued maps.

针对一般的均衡问题和向量均衡问题解的存在性，已有许多研究成果，受这些成果的启发，本文主要从理论上较为系统地研究了一类均衡问题，它统一和推广了许多已有的均衡问题和变分不等式问题，研究分有三个方面；首先，在有限连续拓扑空间中，我们提出了四类广义向量拟均衡系，并借助于有限连续拓扑空间中的极大元定理讨论了这四类均衡系问题的解的存在性问题，然后，在完备度量空间中，我们给出了关于集值均衡问题的Ekeland变分原理，并利用Ekeland变分原理分别讨论了集值向量均衡问题和集值向量均衡系问题的解的存在性。

In this topic, the dynamic analysis methods for piezoelectric vibrator are studied systematically based on the theoretical model, FEM numerical experimentation and FEM governing equation for given compound-mode vibrator, and some valuable conclusions are obtained. The main work accomplished is summarized as follows: 1.Elaborate the main modeling methods for piezoelectric vibrator and the significance and necessity to study the dynamic characteristics of piezoelectric vibrator which emphasize the urgency of this paper. 2.Take the bending deformation induced by piezoelectric ceramic as example, the energy transfer mechanism of electric energy to mechanical energy are analyzed; the motion and force transfer mechanism are analyzed for the longitudinal-bending vibrator. 3.Based on mode assumption and Hamilton principle, the coupling model of piezoelectric vibrator of linear USM is built; moreover, the equivalent circuit model is obtained and a coupling equation represents the relation between electric parameters and mechanical parameters is derived which provides foundation to match the vibrator and driving circuit. 4.Combine the constitutive equation of piezoelectric ceramic with elastic-dynamical equation, geometric equation in force field and the Maxwell equation in electric field and the corresponding boundary condition equation, the FEM control equation for piezoelectric vibrator of USM to solve dynamic electro-mechanical coupling field is established by employing the principle of virtual displacement. The equation lays the foundation to study the non-linear constitutive equation of piezoelectric ceramic driven by high-power. 5.Define the dynamic indexes of characteristic of vibrator and carry out variable parameters simulation by calculating the model parameters and the electric characteristics of vibrator are simulated according to the equivalent circuit model. By numerical experimentation, the working mode of vibration of vibrator and the shock excitation results of the working frequency band which provides the mode frequency to realize bimodal are analyzed. Detailed calculation of the electro-mechanical coupling field parameters is made by programming the FEM control equation.

本课题从理论模型、有限元数值试验、有限元控制模型等方面以复合振动模式振子为例对超声电机压电振子的动力学特性及其分析方法进行了全面系统地研究，得出了许多有价值的结论，主要概括如下： 1、阐述了目前针对超声电机压电振子的主要建模方法，对压电振子动态特性的研究意义和必要性进行了论述，突出了本文研究内容的迫切性； 2、以压电陶瓷诱发弹性体发生弯曲变形为例，分析了压电陶瓷通过诱发应变来实现机电能量转换的机理；对基于纵弯模式的压电振子的运动及动力传递机理进行了分析； 3、基于模态假定，利用分析动力学的Hamilton原理，建立了面向直线超声电机压电振子的机电耦合动力学模型，并据此建立了压电振子的等效电路模型，导出了电参量与动力学特性参量的耦合方程，为压电振子与驱动电路的匹配提供了依据； 4、从压电陶瓷的本构方程出发，综合力场的弹性动力学方程、几何方程、电场的麦克斯韦方程以及相应的边界条件方程，采用虚位移原理，建立了压电振子动态问题机电耦合场求解的有限元控制方程，为研究其大功率驱动下的非线性本构模型奠定了基础； 5、界定压电振子的动力学特性指标，对压电振子的机电耦合动力学模型参数进行计算及变参数仿真；依据等效电路模型，对压电振子的电学特性进行了仿真分析；通过有限元数值实验，对压电振子工作模态附近的模态振型及工作频率附近的频段进行了激振效果分析，找出了实现模态简并的激振频率；利用有限元控制方程，通过编程计算，对压电振子的力电耦合场参数进行了详细计算，得出了一些有价值的结论。

Akiba's method, which reduced the halakic collections to an orderly system, soon found imitators; and nearly every tannaitic head of a school, who, in virtue of his position, had a mishnaic collection, sooner or later adopted Akiba's method of dividing and arranging the material.

秋叶忠利的方法，从而降低了halakic收藏有秩序地系统，很快就发现模仿；和几乎每一个tannaitic头一所学校，谁在凭藉其地位，有mishnaic收集，迟早会通过秋叶的方法划分和安排材料。

The of all kinds and natural landscape that already developed inside garden area shares 7 kinds of 170 more than office, have mountain peak more than 100, steep cliff 10 more than place, the geology with the many reservation in gorge is vestigial, among them of outbalance have resource of the layer with unique system, rock, mineral travel, the resource of geological and tectonic travel of typical feature, arduous and beautiful construction denudes the zoology with the hole travel resource, advantaged government office of ground travel resource, bizarre diversity travels resource and history are long.

有些非凡植物和动物还成为在中国北方生长和分布的北界，因此，具有重要保护价值。目前已开发的各类自然景观共有7种170余处，有山峰100余座，陡崖10余处，峡谷中保留了大量的地质遗迹，其中较为重要的有系统独特的地层。岩石。矿物旅游资源，典型特征的地质构造旅游资源。险峻秀丽的构造剥蚀地旅游资源。奇异多样的洞府旅游资源。得天独厚的生态旅游资源及历史悠久的人文旅游资源。

These improvements included, widening and re-paving the footways with York Tone buff coloured paving. Replacing and reorganising the street furniture into one neat line behind the kerb to leave an unobstructed walkway for pedestrians. Relocating telephone booths to the sidestreets. Closing off selected sidestreets to provide a more continuous footway enhancing pedestrian safety and preventing restricted traffic from entering the street. Erecting new, dual purpose lighting covering both the carriageway and footway from one post. The posts also included attachments enabling banners to be put up. Creating bus lay-bys….

这些改进包括很多方面：拓宽并用浅黄的约克色调重铺人行道；重新组织摆放街边摆设，使砌边石后面的街道干净整洁，以便给行人留出无障碍物的通道；把电话亭挪进小巷安置；有选择地封闭一些小巷，从而提供一条更连贯的人行道，既保障了行人的安全，也避免了一些受限制的车辆进入大街；建立新的双重目的的照明系统，从一根电线杆上瑶同时照射车道和人行道，这些电线杆上还要有能安置旗帜横幅的连接物；修建公共汽车的路边停车处，等等。

On the basis of the crystallography, however, systematic investigation on crystalline habit of oxide crystal synthesized by hydrothermal processing, including single crystals and crystalline grains in ultrafine ceramics powder, is also a noticeable subject with theoretical and applicable significance, which has been studied in this article according to plentiful data of experiments obtained in research on crystal defects in synthetic smoky quartz, preparation of amethyst quartz and ultrafine zirconia and alumina powder by hydrothermal processing.

但以结晶学为基础，较系统地研究水热条件下氧化物晶体，包括单晶和陶瓷微粉中的晶粒的结晶习性和结晶动力学仍是一个值得重视的、既有理论意义又有应用价值的课题。本文通过对水热法人工烟水晶中的缺陷、人工紫水晶的生长、水热法超细ZrO〓粉体和Al〓O〓粉体的制备等研究，以较为丰富的实验资料基础上，在这一方面进行了探讨。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。