查询词典 composite analysis

In chapter 5, the concept of zero-span tension known in papermaking area is for the first time introduce to wood science area to explore in-tree variation of longitudinal tensile strength of tracheids and its main influencing factors. In chapter 6, composite micromechanics and classic laminated theory are used to make a comprehensive and detailed analysis of the main influencing factors of mechanical properties of tracheids cell wall. Some experimental results acquired in the foregoing chapters are explained successfully. Results were summarized as follows: Mechanical characteristics of wood at micron scale: 1 At micron scale, the longitudinal mechanicai behavior of wood microtome section differs greatly from that of wood with normal size.

论文的第2章首先研究了微米尺度下木材的力学特性，为后面运用木材微切片拉伸技术奠定一定的理论基础；在第3章，首次考虑到了微米尺度下木材力学性质的尺寸效应，并运用木材微切片正常间距拉伸技术研究了管胞纵向弹性模量的株内变异规律；在第4章，首次利用纳米压痕技术中最新发展起来的连续刚度测量法直接在管胞细胞壁上进行纳米级的压痕实验，测量次生壁S〓层的纵横向弹性模量和硬度，从而把细胞壁力学的研究提高到一个更高的水平；在第5章，首次把造纸领域的零距拉伸技术引入木材科学研究领域，研究了管胞纵向抗拉强度的株内变异规律及其主要影响因素；第6章则运用复合材料细观力学的基本理论和经典层板理论对影响细胞壁力学性能的主要因素进行了全面而系统的分析，并为前几章的一些实验结果提供理论上的解释。

Qiu Tong, Li DerongShanghai Research Institute of Building Science, Shanghai 200032）Abstract: This paper summarized the application of External Thermal Insulation Composite Systems in China for building energy conservation. Theoretical analysis and experiments, which were based on the relative technical approvals, regulations and standards for application, showed that four kinds of ETICSs, especially the noncombustible heat preservation system had good safety performance against wind load on the condition of reaching the relative standards or regulations.

本文综述了各种不同外墙外保温系统在我国建筑节能领域的应用现状与发展趋势；在原有建筑节能以及风荷载对建筑影响研究的基础上，参照相关国内外标准、技术规程对各类外墙外保温系统的抗风荷载性能进行了理论及实验分析，结果表明各类外墙外保温系统尤其是无机不燃外墙外保温系统在施工质量完全达标的情况下，具有较高的抗风荷载性能安全系数。

Finance complexity ; Hurst exponent ; R/S analysis ; nonperiodic cycle ; composite index

金融复杂性； Hurst指数； R/S分析；非周期循环；综合指数

In this paper, a theoretical fracture analysis for orthotropic composite plate under bending condition is studied.

本文对受弯正交复合材料板进行了理论断裂分析。

And presents some commonly process and attentions in applying the FEM software ANSYS to PCM analysis.2 Analyzed the PCM performances under the affection of piezoelectric and polymer"s material characteristic by FEM, and got the rule.3 Analyzed the PCM performances which affected by stickup layer"s materials characteristic and its thickness under the application of FEM.4 Based on the construction principles of 1-3 type orthotropic piezoelectric composite materials, the finite element model is designed and its orthotropy is analyzed, at the same time, the length/broad ratio to PCM orthotropy is also analyzed.

二、应用有限元法分析了压电相材料和聚合物基体相材料特性对于压电复合材料综合性能的影响规律。三、应用有限元法分析了粘贴层的材料性质和厚度尺寸对压电复合材料在实际应用中性能的影响规律。四、根据提出的正交异性压电复合材料的构造原理，设计出1-3型正交异性压电复合材料的有限元模型并分析其正交异性，同时分析了压电相材料长宽比对其正交异性的影响。

With the analysis of stress intensity factor near the crack tip of the cracked metallic panel,the influence of residual thermal stress on repairing cracked metallic panel with composite patch bonded is investigated.

本文建立了复合材料胶接修理金属裂纹板的三板有限元模型；采用分析金属裂纹板裂纹尖端应力强度因子的方法，分析了残余热应力对复合材料修理金属裂纹板修理效果的影响。

Composite wall ; fiber-reinforced plasterboard ; nonlinear finite element analysis ; seismic behavior

组合墙体；纤维增强石膏板；非线性；有限元分析；抗震性能

The influence of the structure and material parameters on static and dynamic characteristics is studied. The three dimensional static analysis is obtained by the power series expansion method for a piezoelectric composite laminates. Three dimensional distribution of bonding stress, displacement and electric potential are presented. The distributions of electric potential across thickness of two kinds piezoelectric materials are discussed.

对于静态问题，采用三维精确解方法，给出了压电层与基体之间剪应力、位移、电势的三维分布图；讨论了工程中常用的两类压电材料在感知和作动情况下沿压电材料厚度方向电势的分布情况，分析了电势可看作线性分布的条件；讨论了压电层和粘结层的厚度及材料特性变化对压电感知和作动效果的影响，并对压电层的厚度作了优化分析。

This conclusion provides a basis for the analysis of contact problem of composite structures.

从而，为下一部分即层合结构接触问题的分析奠定了基础。

On the basis of the previous results and according to the central composite experimental design principles,the method of response surface method with 3 factors and 3 levels was adopted.then the factors influencing the technological parameters were determined by means of regression analysis.response surface and contour were finally graphed with the extraction rate as the response value.resultsthe optimum conditions of lycium barbarum polysaccharides extraction were as follows:the ratio of material to solvent of 1∶32,extraction temperature of 84℃ and extraction time of 2.3 h,one time extraction.conclusionthe yield of lycium barbarum polysaccharides is 11.10% under the optimum conditions.

方法在单因素实验基础上选取实验因素与水平，根据中心组合（box-benhnken）实验设计原理采用3因素水平的响应面分析法，依据回归分析确定各工艺条件的影响因子，以多糖提取率为响应值作响应面和等高线。结果在分析各个因素的显著性和交互作用后，得出枸杞多糖水浸提的最佳工艺条件为：料液比1∶32；浸提温度84℃；浸提时间2.3h；浸提1次。结论在最佳工艺条件下，枸杞多糖的实际提取率可达11.10%。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。