查询词典 resistivity

Since the conductors have a finite resistivity, there will be ohmic heating of the conductors and their temperature will increase.

由于导体有一个有限的电阻率，将有欧姆加热的指挥家和他们的温度将会增加。

Three transmission line model methods are adopted to measure the specific contact resistivity of the ohmic contacts on p-GaN.

采用多种传输线模型方法，测量了p型GaN上的欧姆接触的比接触电阻率。

The Qinling Orogen ; lower-resistivity layer ; dynamic model ; lithosphere ; sustainable development

秦岭造山带；低阻层；动力学模型；岩石圈；可持续发展

The influence of sputtering pressure on structure character,morphology,overpotential,resistivity and growth rate was studied.

采用对靶直流磁控溅射设备制备镍铁氧化物催化薄膜，研究了溅射气压与催化薄膜的结构、表面形貌、过电位、电阻率及生长速率之间的关系。

D resistivity forward modeling ; Finite-element ; Secondary potential ; Symmetric successive overrelaxation ; Conjugate gradient.

电阻率三维正演；有限元；异常电位；对称超松弛；共轭梯度

Firstly, the three-dimension boundary question and its corresponding variation question concerning the point-source electrical field on a 3-D structure are presented. Secondly, the finite element method is used to solve the variational equation. The study area is divided into many tetrahedral elements. Then, we interpolate with a tri-linear function in each element. So, the variational equation is converted into a linear equation system. Finally, taking into account saving of time, we make use of symmetric successive overrelaxation preconditioned conjugate gradient algorithm to solve large linear system, and obtain the potential value of each node, resulting in the calculation of the apparent resistivity values on the ground surface.

首先给出了三维构造中点源电场的边值问题以及相应的变分问题；然后利用有限单元法求解变分问题，采用四面体单元对研究区域进行剖分，在单元中进行三线性函数插值，将变分方程化为线性代数方程组；最后，考虑到节约计算时间，利用对称超松弛预条件共轭梯度迭代算法求解大型线性方程组，得到了各节点的电位值，进而计算出地表的视电阻率。

In this study, symmetric successive overrelaxation preconditioned conjugate gradient algorithm is used to solve large linear system derived from 3-D finite-element resistivity forward modeling. Using row-indexed sparse storage mode to store coefficient matrix, the algorithm converges much quickly and requires much less storage of computer.

引入对称超松弛预条件共轭梯度迭代算法求解电阻率三维有限元计算形成的大型线性方程组，并有机结合系数矩阵的稀疏存储模式，使得三维有限元正演计算的速度大大提高而内存需求则大大减少。

The Bi2Te3 film is p-type semiconductor film, and the resistivity will decrease along with the thickness increasing of films.

得到的P-型半导体Bi2Te3薄膜，其电阻率随薄膜厚度的增大而减小。

CuI is a P-type semiconductor material with 3.2eV bandwidth and stable performance in chemistry and physics. Its resistivity can be changed with concentration, and CuI film is transparent for visible band of light.

CuI是一种高带隙宽度的P型半导体材料，带宽为3.2ev，物理化学性质稳定，制备成本低廉，电阻率可随浓度改变，在可见光范围内透明等优点。

Currently, the direct current resistivity models are simulated by the typical or one-time finite-element method, which often associated with the structured mesh such as hexahedron or pentahedral in 3D or with simple unstructured by directly dividing un structured mesh in 3D or 2D.

在本文中，我们呈述了一种全新的基于非结构化网格的自适应有限元数值模型方法。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。