torsion tensor

Particular relationship between curvature and torsion tensor

曲率与挠率张量的特殊关系

To mathematically characterize the deformation of the middle surface of a shell,the metric tensor and curvature tensor ought to be investigated in detail.

为了从数学角度更好地描述壳体中性曲面如何变形,通过渐近分析和张量分析,给出了当壳体中性曲面发生形变时度量张量和曲率张量改变量的完整表达式。

It is shown that the Riemannian curvature tensor is zero R lkij =0 for the Tangent Surface of a spiral.

得到了螺旋线切曲面的 Riemann曲率张量 Rlkij=0 ,从而指出了切曲面为可展曲面 ,并给出了设计单片式连续曲面结构叶片的有关参数 。

In this paper, We start from scratch course coordinates and perallel displacement of vector, derive the connection, and we further derive covariant differential, geodesic line and curvature tensor.

本文从曲线坐标、曲面上向量平移入手,导入了联络,继而引入协变微分、短程线及曲率张量,最后指明联络在广义相对论中的意义。

Intlationary Model In Scalar-Tensor Theories With Torsion Of Gravity;

含挠率的标量——张量引力理论的暴涨宇宙模型

Numerical prediction of saturated permeability tensor of a woven fabric for use in the fluid simulation of liquid composite molding;

复合材料液体模塑成型工艺中预成型体渗透率张量的数值预测

Finite flement simulation of anisotropic reservoir considering full permeability tensor

考虑渗透率张量的各向异性油藏有限元数值模拟方法

Based on the equivalence concept, a method has been developed to calculate the equivalent permeability tensor and deformation parameters in fractured sandstone reservoir, and an equivalent continuum model has been established for reservoir seepage flow and deformation.

根据等效思想 ,给出了裂缝性砂岩油藏等效渗透率张量和变形场等效力学参数的计算方法 ,建立了油藏渗流和变形的等效连续介质模型 ;通过分析渗透率与应变之间的耦合关系 ,得到了裂缝性砂岩油藏流固耦合渗流计算的数学模型 ,并给出了计算方法。

curvature tensor of an affine connection

仿射联络的曲率张量

The quantities baβ are the covariant components of a plane tensor, called the curvature tensor of the surface.

baβ是“平面张量”的协变分量，叫做该曲面的曲率张量。

On F-semisymmetric connection and F-curvature tensor;

关于F-半对称联络和F-曲率张量(英文)

At the same time, The curvature tensor expression of a Riemannian manifold under the special semi-symmetric metric-recurrent connections is also obtained.

同时给出了特殊半对称联络的黎曼流形曲率张量表示。

Normal Curvature Disappeared Submanifolds with Parallel Second Fundamental Form

具有平行第二基本形式且法曲率张量场消失的子流形

Flag Curvature and Cartan Torsion of a Class of Finsler Manifolds;

一类Finsler流形的旗曲率及其Cartan张量

an instrument for measuring the curvature of a surface.

测量表面曲率的仪器。

On Randers Metrics of Isotropic S-Curvature

具迷向S-曲率的Randers度量

Approximate Merging of a Pair Tensor Product Bézier Surfaces

两相邻张量积Bézier曲面的近似合并

The changes of endothelin-1 and nitric oxide levels in varicose veins in the lower extremities

下肢曲张静脉组织ET-1和NO含量的变化

Lipschitz Extension and Quasihyperbolic Metric in Strongly John Domains

强John域中的Lipschitz扩张和拟双曲度量

Experimental Study on Creep Curvature of Full-prestressed Concrete Beams with Pretensioned Bent-up Tendons

折线先张全预应力混凝土梁徐变曲率试验研究

Comparative Estimation of Axial Length and Keratometric Power Measured by IOLMaster、Contact Ultrasound A-scan and Keratometer

IOLMaster测量眼球轴长和角膜曲率与A超和角膜曲率计测量的相关性研究

Hynersurface with Constant Sclar Currature in QC Riemannian Manifold;

常QC黎曼流形中具有常数量曲率的超曲面

Compact Hypersurfaces with Constan Scalar Curvature in Locally Symmetric Manifold

局部对称空间中具有常数量曲率的超曲面

Normal Vectors and Curvatures Estimation on Triangular Mesh;

离散三角网格上的法向量和曲率估计

Some Properties of Finsler Metric with Isotropic Curvature;

具有迷向曲率的Finsler度量的某些性质

Research on Surface Measuring Path at CMM Based on PRM;

基于概率地图的CMM曲面测量路径研究