一阶

A first order shear deformation theory of piezoelectric shell was proposed, which is based on Hamilton's principal, linear piezoelectricity theory and first order shear deformation laminated shell theory.

提出了一种压电层合板壳的一阶剪切变形理论。

After introducing the mechanism of seismic displacement control with dampers, 3 kinds of assessment functions for seismic response control effect are formulated based on the seismic response characteristics of longspan suspension bridges and a new optimal placement method of dampers using penalty function and first order optimization theory is proposed.

从地震位移控制的原理出发，根据大跨悬索桥结构地震响应的特点，建立了其地震位移控制效果的3种评估函数，提出了一种基于罚函数和一阶优化原理的阻尼器最优布置方法。

A rectangular finite element for laminated plate with bonded and/or embedded piezoelectric sensors and actuators is developed based on the variational principle and the first order shear deformation theory.

基于变分原理和一阶剪切理论，本文建立了一种新的机电耦合矩形有限单元，该单元具有四个节点20个位移自由度，电自由度为单元中的压电铺层层数。

In chapter 2, a finite element model for the composite sandwich plates is developed, based on the Zig-Zag deformation assumption and the first order shear deformation theory, and the finite element buckling analysis governing equations for the plates under mechanical, thermal and/or thermal-mechanical mixed loads are deduced respectively. By Von-Karman nonlinear deformation relations and Total Lagrange formulation, an incremental governing equation for postbuckling analysis is established and a corresponding effective computational scheme is presented..

第二章首先建立了基于Zig-Zag截面变形假定和Mindlin一阶剪切理论的夹层板有限元分析模型，分别推导了夹层板机械力、热载和热—机械力耦合屈曲分析的有限元列式和相应的屈曲前以及屈曲临界状态的平衡方程，基于Von-Karman大挠度理论，采用增量形式的全局lagrangian法推导了复合材料夹层板增量形式的几何非线性有限元离散平衡方程，给出了一种有效的非线性平衡方程的迭代求解格式。

In this paper, one corollary has been derived, i. e., the Frechet derivative which is necessary to the resistivity inversion, is the first order of Zhang's integrated geometric factor.

针对阵列电位电极系测井正演与反演研究，我们得到另一结论：反演过程中必然用到的Frechet导数为张氏一阶积分几何因子。

By using function theoretic methods,the existence anduniqueness of the above problem are proved,which is generalization and devel-opment of related results.

先将其转化为一阶非线性椭圆型复方程的混合边值问题，然后使用Newton嵌入法得到了这一混合边值问题的近似解，并且在一定条件下给出了近似解的误差估计。

It is capable of describing the video service in the case of scenery change, and its specific feature of Gamma distribution follows fairly well the bit rate of a VBR video service .

提出了一种新的 VBR视频业务模型：三态马尔科夫链下的双一阶自回归Gamma序列。

The last section of Chapter 3 discusses the flux distribution of a quasi-single stage solar furnace which consists of a non-imaging focusing heliostat as the primary stage and a much smaller spherical concentrator as a secondary.

第三章的最后一节分析了准一阶聚光(quasi-single stage)太阳炉的聚光比分布。这种太阳炉的组成是由一个非成像聚光定日镜作为主要聚光装置，一个小的球面镜(来源：ABC论文5e网www.abclunwen.com)做为二次反射聚光装置。

Based on the modified interval algebra, an interval based temporal logic TL is constructed, its semantics is rigorously defined.

在扩充后的时区代数结构的基础上，构造一种基于时区的一阶时态逻辑语言TL，并为TL规定了语义。

The spectra, which were pretreated with the method of first derivative combined standard normal variate, were analyzed by principal component analysis.

将经一阶导数结合标准归一化处理后的光谱进行PCA降维，以前20个主成份（含原始光谱86.09%的特征信息）为输入变量，建立杂交稻种纯度鉴定的BP-ANN模型。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。