3μm wavelength was measured,and the element χ(3)xyxy of third-order nonlinear susceptibility tensor χ(3) was calculated.
3μm波长处,基于克尔效应和弗朗兹-凯尔迪什效应的电致双折射,进而计算出三阶非线性极化率张量(χ3)的分量x(χy3x)y。
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。
The anisotropy is described by a magnetic susceptibility tensor, andapplied to analyse the magnetic fabric of rocks.
磁各向异性采用磁化率张量来描述,并用于研究岩石的磁组构。
The magnetic anisotropy due to the construsction and texture of rockscan be represented by the susceptibility tensor.
岩矿石结构构造成因的磁各向异性,可用磁化率张量描述。
Diffusion Tensor Imaging in Multiple Sclerosis;
多发性硬化的磁共振弥散张量成像研究
Research of Regularization Methods for Cardiac Magnetic Resonance Diffusion Tensor Field
心脏磁共振扩散张量场正则化方法研究
Optimized White Matter Fiber Reconstruction Using Diffusion Tensor Magnetic Resonance Imaging
磁共振弥散张量成像的脑白质纤维优化重建
A study on magnetic resonance conventional sequence imaging and magnetic resonance diffusion tensor imaging of amyotrophic lateral sclerosis
肌萎缩侧索硬化症的磁共振成像及磁共振弥散张量成像研究
variable temperature micromagnetic susceptometer
可变温度微磁磁化率计
The Energy-Momentum Tensor of Gravitational Waves of the Double Polarized States and Electromagnetic Fields in Gravitational Waves;
双极化态引力波及其波场中的电磁波的能量动量张量
There is an obvious positive correlation betweenmagnetic susceptibility and iron content in rutile.
金红石的磁化率与其铁的含量明显相关。
The Quantitative Application of Magnetization Transfer Ratio in Patella Cartilage of Normal and Osteoarthritis
正常及退变髌软骨磁化传递率的定量研究
The results also showed that the specific saturation magnetization and the magnetic loss power of the product increased with the increasing of ferrous content.
产物比饱和磁化强度和磁损耗功率随铁含量的增加而增大。
Quantitative Study of Dynamic MR Diffusion Weighted Imaging and Diffusion Tensor Imaging Compared with Pathology-feasibility in Rabbit VX2 Liver Tumor Model;
兔VX2肝癌模型动态量化磁共振扩散、张量成像与病理的对照研究
Localization of a Magnetic Object Based on Magnetic Gradient Tensor at a Single Point
磁性目标的单点磁梯度张量定位方法
Diffusion Tensor Magnetic Resonance Imaging in Ring-enhancing Cerebral Lesions;
磁共振弥散张量成像在颅内环形强化病变中的诊断价值
Diffusion-tensor imaging of cervical spinal cord in amyotrophic lateral sclerosis
肌萎缩侧索硬化症的颈髓磁共振弥散张量成像研究
Diffusion tensor imaging evaluation of white matter alternations in patients with mild cognitive impairment
磁共振扩散张量成像评价轻度认知障碍患者的脑白质变化
curvature tensor of an affine connection
仿射联络的曲率张量
Measurements of the Eccentricities of the Attracting Masses and the Susceptibilities in the Determining G;
周期法测G实验中吸引质量的偏心距与磁化率的测量
