本文通过变分途径建立了变形梯度张量的极分解和加法分解之间的联系。
Through a variational approach, the passage from the additive decomposition to polar decomposition of deformation gradient has been completed.
本文根据分层总和法的基本概念及表达式给出了变形系数表及变形梯度系数表。
Based on the fundamental concept of layer-wise summation method, this paper presents tables for deciding the coefficients of deformation and deformation grade.
建立了局部(塑性)剪切变形梯度与局部(塑性)剪切应变分布之间的关系及速度梯度与应变率分布之间的关系。
The relation between the gradient of local (plastic) shear deformation and the local (plastic) shear strain and that between the gradient of velocity and the strain rate were established.
伽师强震群的破裂断层面为北东向，与震源深度梯度变化带、地壳接触变形梯度变化带、等烈度线以及地震扩展方向吻合；
The rupture surface is to NNE, similar to gradient belt of focal depth, gradient belt of crustal deformation, isoseisms and extended direction of earthquakes.
结果表明有效的热补偿对镜面变形峰谷值有很大的影响，在非光照区进行热补偿可以大大降低镜体的温度梯度，从而明显减小镜面变形的峰谷值。
The results show that thermal compensation in non-irradiant areas could reduce the temperature gradient of mirror for high-power laser, and then could decrease the thermal deformation significantly.
考虑启动压力梯度和介质变形的影响，研究低渗透油藏中直井产量的变化规律。
With consideration of start up pressure gradient and media deformation, this paper studies vertical well production in low permeable reservoirs.
由于心脏的变形和血液的流动，MRI图像中出现了弱边界、局部梯度极大值区域、伪影等现象。
Due to cardiac deformation and blood flowing, weak edges, local gradient maximum regions and artifacts are found in the MRI images.
空间有限元分析表明，预应力混凝土箱梁的应力和变形对温度梯度模式的变化较为敏感。
The space finite element analysis indicated that the prestressed concrete box girder's stress and the distortion are sensitive to the change of gradient of temperature pattern.
本文研究梯度层、三明治层及普通多层膜覆层体受相同表面载荷滑动接触作用下的弹塑性变形情况。
The sliding contacts of gradient layers, sandwich layers and ordinary multi-layers coatings subjected to the same surface load have been investigated under elastic-plastic deformation in this paper.
针对低渗透地层垂直裂缝井的渗流过程，考虑了启动压力梯度和介质变形系数的影响，建立了三线流模型。
In view of seepage process in vertical fracture well in low permeability reservoir, considering kickoff pressure gradient and media deformation coefficient, bilinear flow model is established.
给出一种结合梯度矢量流(GVF)及椭圆变形模板的椭圆提取新算法。
A new ellipse extraction algorithm based on the ellipse-special deformable templates and gradient vector flow (GVF) was proposed.
结果表明，由于材料的非均匀性，功能梯度梁中存在拉-弯耦合变形。
The results show that there exists the tension-bend coupling deformation in the uniformly heated beam because of the non-uniform characteristic of materials.
理论研究表明，金属基梯度复合材料（MMGC）各组分性能的差异使其在拉伸变形时产生了三轴应力。
T he results of the basic research show that a tri-axial stress will be produced in the tensile specimens because of components property difference of the metal matrix gradient composites (MMGC).
基于一阶剪切变形板理论，推导了功能梯度材料圆形板在边界面内均布压力作用下的轴对称屈曲方程。
Based on the first-order shear deformation plate theory, axisymmetric governing buckling equations are derived for a functionally graded material circular plate subjected to in-plane pressure.
研究了功能梯度材料截顶圆锥壳在横向机械载荷与非均匀热载荷同时作用下的变形问题。
The deformation of functionally graded truncated conical shell subjected to transverse mechanical load as well as non-uniformly thermal load is studied.
基于随机并行梯度下降（SPGD）算法，32单元变形镜，CCD成像器件等建立了无波前传感自适应光学系统实验平台。
Based on stochastic parallel gradient descent (SPGD) control algorithm, an adaptive optics test-bed without a wave-front sensor was built with a 32-element deformable mirror and a CCD.
对温度、弹性变形和刚体运动变量联合求解，研究了热流引起的温度梯度对弹性变形和刚体转动的影响，以及在大变形情况下的几何非线性效应。
The influence of temperature gradient on the elastic deformation and rigid body motion and geometric nonlinear effect due to the large deformation are investigated.
本文提出了迭代梯度矢量流参数变形模型(IGVF)。
In this thesis, a new deformable model called Iterative Gradient Vector Flow (IGVF) is developed.
温度梯度诱导了冻结中砂的非均质性，减小了模型的起始斜率，大大减低了抗变形能力；
In other words, the temperature gradients result in the non-homogeneous properties and lead to the decrease of the initial slopes together with the ability of resisting the deformation.
另外，由于电池内的温度梯度的最小化，所述多层结构也 不太可能变形和破裂。
The multilayer structure is also unlikely to distort and fracture by minimizing the temperature gradient in the cell.
基于考虑启动压力梯度和介质变形特性的单相流渗流方程，建立了适应于低渗透油藏油井的产能方程，并给出了低渗透油藏单相流ipr预测方法。
Based on the flow equation concerned on threshold pressure gradient and deforming media, this paper productivity equation and IPR forecasting method for low permeability reservoir.
介绍了一种利用激光扫描金属薄板时，在热作用区域内产生的强烈温度梯度而诱发的热应力，使板料实现塑性变形的工艺方法。
A new forming process which can make sheet metals plastic deformation through the use of a laser as a heat source was described.
注塑件变形始于塑料的收缩，型腔中压力梯度、温度梯度以及剪切应力的客观存在导致了注塑件各部位收缩的不均一。
Plastics shrinkage causes the deformation of injection molded parts. The pressure gradient, temperature gradient and shear stress in the cavity make nonuniform shrinkage.
其运算量仅为基于梯度的可变形块匹配算法（GB-DBMA）的一半，但能得到更好的主客观预测质量，且更易于VLSI硬件实现。
NS-DBMA has only half computation amount of the gradient-based search algorithm (GB-DBMA) but gets better subjective and objective quality, and is much easier to implement by VLSI.
高R值强转折梯度带很可能是岩石层的剧烈变形带，多对应于地震高强度、高频度活动区；
An abrupt gradient zone with higher R values may be a radical deformed zone of the lithosphere , it mostly corresponds to an seismic active region with higher intensity and frequency;
指出带卷径向存在温度梯度，在冷却初始阶段冷缩变形不均匀是产生粘结的主要原因。
It observes that there is diametral temperature stairs to the coil and the main reason that the coherence occurs is due to the uneven shrink of the coil at the beginning of the cooling phase.
活塞环在运行状态下由于存在温度梯度而发生变形，导致活塞环开口附近接触状况变化和径向压力增加。
During the Operation of the engine the temperature graduate is likely to deform the piston ring, as may alter the contact situation at the opening of the piston ring and raise the radial pressure.
活塞环在运行状态下由于存在温度梯度而发生变形，导致活塞环开口附近接触状况变化和径向压力增加。
During the Operation of the engine the temperature graduate is likely to deform the piston ring, as may alter the contact situation at the opening of the piston ring and raise the radial pressure.
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