The underlying mechanism was attributed to the screening of built-in surface electric field by photoexcited carriers, and through the converse piezoelectric effect, the internal strain was reduced. 这个机制认为是表面电场被光机发的电子电洞对屏蔽,经由逆压电效应,内建的应力被降低。
Radial Distribution of Internal Longitudinal Residual Strain in Eucalyptus urophylla × E. grandis Plantation Log 人工林尾巨桉原木内部轴向残余应变径向分布【光】径向镜头变形
The relief of some of the internal strain energy of a previously cold-worked metal, usually by heat treatment. 冷塑性变形金属释放其部分应变能的过程叫回复,通常采用热处理的方法。
Geometrically Nonlinear Analysis of Mindlin Plate Using the Incompatible Bending Elements with Internal Shear Strain Mindlin板几何非线性分析的附加内部剪应变法
By the ZFC method of a single hologram, a Herculite container, as an experiment, was measured. The experimental results show that the displacement and the surface and internal strain measured are in agreement with those by a strain gage. 采用单张全息图的ZFC(零级条纹和条纹计数相结合)条纹观察法,测量了玻璃钢压力容器的位移、表面应变及内部应变,其结果与应变仪的结果一致。
Formulas of internal force-strain, residual strain and residual stress for the laminates-has been obtained under the influence of temperature and humidity. 导出了湿温影响下层合板内力、应变、残余变形和残余应力的表达式。
The average grain size decreases while internal strain increases, resulting in a reduction of crystal degree of order; 平均晶粒尺寸减小、内应变增大导致结晶有序度降低;
An internal shear strain approach for Mindlin plate element 构造Mindlin板元的内部剪切应变法
Double iterative technique is proposed for reconstructing internal strain components of a body from the projections of boundry value of displacement. 讨论由物体边界位移的测试值作为投影值来重建物体内部应变分量的双重迭代代数方法。
Internal Strain Measuring for Concrete Specimens by Fiber Optical Sensors and Results Analysis 混凝土内部应变光纤测量结果及分析
Control according to the boundary and the characteristic of the knothole plane surface coordinate system, frame of axes internal node strain to construct a displacement function for correspond. 根据边界约束和板的平面坐标系内节点变形的特征来构造出相应的位移函数。在X方向上的函数我们都用三次B样条函数的广义参数形式。
View on internal energy and strain energy form macroscopy and microscopy 从宏观和微观来看内能与应变能
Internal strain of braided composites is measured by devising three kinds of optical fiber sensors. The sensors are polarimetric sensor, interferential sensor and microbend sensor. 3首次采用偏振式、干涉型和微弯式光纤传感器对编织复合材料的内部应变进行了检测。
Distributing Measurement of Multipoint Internal Thermal Strain of 3D Braided Composite Using Fiber Bragg Grating Sensor 基于光纤光栅的编织复合材料多点热应变监测
Formulation of Internal Strain Rates for the Elastoplastic Analysis of Thin Plate Bending Problems with BEM 边界单元法解薄板弹塑性问题的内点应变率公式
The distribution of internal strain and stress with different height reduction are given, analyzed and compared with that of flat platens upsetting. 给出了变形过程中,不同压下量下毛坯内部的变形过程及应力、应变分布情况;并对比分析了锥形板镦粗和普通平板镦粗时的应力、应变情况。
CJP concrete internal strain meter is designed for measuring the internal strain of architecture concrete. CJP型混凝土内部应变计主要用于混凝土建筑结构内部应变测量。
The general equation of hygrothermal field for nonlinear distribution along thickness satisfying the boundary condition was drawn up in this paper. Therefore, the matrix equations of internal force, strain, residual stress and residual strain for a laminate were obtained. 文中提出了满足湿温边界条件沿板厚呈非线性分布湿温场的一般方程,从而导出层合板内力、应变、残余应力和残余应变的矩阵表达式。
The results show that tissue internal strain distributions mainly depend on the border conditions and the distributions of tissue elastic properties. Symmetrical compression conditions and more textural detail better performance of tissue strain estimation can be obtained. 结果表明,组织内部应变分布主要由边界条件和组织的生理结构决定,对称的压缩条件和丰富的纹理结构可以获得更好的应变估计效果。
The internal strain of composite laminates during a constant stress amplitude fatigue testing process was monitored with fiber Bragg gratings ( FBGs) as a fatigue indicator to reveal Young's modulus decrease of the specimen, which is a direct index of damage. 采用光纤光栅(FBGs)作为疲劳计监测了复合材料层板在等应力幅疲劳测试过程中的应变变化,该变化反映了复合材料在疲劳过程中刚度的衰减规律。
The fundamental motivation that runs through human artistic creation ii to reveal life forces by means of examining the complicated fresco with a new view on space and time. The lime-space perspective of fresco is the externalized revelation of the internal strain of psychological lime-space. 通过新的时空观来审视复杂的壁画艺术现象,来揭示生命精神是贯穿于人类艺术创作始终的根本动因,壁画的时空观是心理时空的内在张力的外在显现。
Peaking effects were found on the plot of internal friction vs strain amplitude or time when the resonant frequency of anomalous peak closed to the normal one. 当反常共振峰频率与正常共振峰靠近时,在内耗-振幅或内耗-时间图上呈现峰值效应。
Carbon fiber reinforced cement ( CFRC) is a kind of multifunctional material, changing of the internal strain could be reflected by the changing of its own electric resistance. 碳纤维机敏水泥石是一种多功能材料,其电阻率的变化能够反映自身应变的变化。
In the study of pulsed strong magnetic field technology, researchers urgently need to find a measuring tool that can be use to measurement of the internal strain magnet accurately. 在脉冲强磁场技术的研究中,研究人员迫切需要找到一种能够准确测量磁体内部应变的测量工具。
Complicated internal strain fields are caused in and around quantum dots in the growth of self-assembly quantum dots. 在不同生长方向上自组装制备量子点,将引起复杂的内部应变场。
Optical fiber sensing technology is applied in internal strain measurement of braided composites. 3研究了光纤传感技术在编织复合材料内部应变检测中的应用。
The main tasks of this thesis are: 1. A method of detecting the internal freeze-thaw status of the freeze and permafrost by monitoring the internal strain vibration with fiber Fabry-Perot sensor is proposed for the first time. 2. 本文的主要工作包括:1、首次提出了使用光纤法珀干涉式传感器,通过检测冰冻冻土内部的应变变化,判断冰冻及冻土内部冻融状况的检测方法。
Hohhot as a traditional inland center city, in the development process and administrative constraints to the system as the leading force, is a typical interaction between external shocks and internal strain of modern urban development cases. 呼和浩特作为传统的内陆中心城市在发展过程中以制度约束和行政作用力为主导,是典型的外力冲击与内部应变相互作用的城市近代化发展案例。
In model tests, displacement of reinforced foundation loading deformation and foundation internal local shear strain field image were analyzed using Deformation Measurement System to investigate the mechanism of reinforced foundation failure mode. 在模型试验中将变形量测系统用于分析加筋地基加载变形破坏的位移、地基内部局部剪应变场的图像,用以研究加筋地基的破坏模式和破坏面发展机理。
The internal longitudinal residual strain and the physical properties of wood had emerged negative correlation between each other, however no coefficient was significant. 兴安落叶松内部轴向残余应变与木材物理性质之间都呈现出负相关,其物理指标与内部轴向残余应变的相关系数都没有达到显著水平。