查询词典 contraction of tensor

In order to conquer this difficulty, we suggest a naive estimating method of moment based on matrix algorithms Kronecker tensor product, vec and mathematical expectation.

主要推导工具是矩阵中Kronecker乘积，矩阵拉直运算以及数学期望。

On the basis of classical lamination theory and large deflection hypotheses of plate, the equilibrium and compatibility equations of simply supported composite laminated plates were obtained. The nonlinear partial differential equations are transformed into the ordinary differential equations of Kronecker tensor product by series expansion and solved numerically by the fourth-order Runge-Kutta method.

基於经典的层合板理论及板的大挠度基本假设，得到四边简支层合板的非线性运动方程及变形协调方程；用级数展开把非线性偏微分方程组化为易於求解的Kronecker张量积形式的二阶常微分方程组，并由四阶Runge-Kutta法数值求解。

Objective To explore the causes of blood circulation problems in 3 of 6 cases of pedicled tensor fascia lata myocutaneous flap transf erring.

目的 探索应用阔筋膜张肌肌皮瓣带蒂移转中，部分肌皮瓣发生血供障碍的原因。

First, we characterize graphs whose tensor product and lexicographic product admit nowhere-zero 3-flows.

本文主要研究了乘积图的非零整数流和完美匹配单圈图的特征值。

By the definition of Green-relation and the analogue of generalized Greens lemma, this paper first studied some properties of H-class、 D--class of rpp semigroups, then by left S-system 、-bisystem and tensor product, we described a blocked Rees matrix semigroup. Especially, the paper studied primitive rpp semigroups .

本文利用在rpp半群上定义的广义Green~(l-关系及相应的广义Green定理，首先研究了rpp半群H~(l-类、D~(l-类的若干基本性质，然后以左S-系、-双系和张量积作为工具，刻画了块Rees矩阵半群结构，最后从带零的本原rpp半群出发，构造出A型块Rees矩阵半群，并证明了一个半群S为本原rpp半群，当且仅当S同构于一个A型块Rees矩阵半群。

By investigate the deviation between the tensor and unit matrix and the effects on the devices, the relationship between the non-reciprocity and structure can be obtained.

通过考察磁导率张量与单位矩阵的差别及其对器件性能的影响，可以研究器件的非互易性能和结构之间的关系。

In practice, the ferrite devices work in the frequency range which is far away from the ferromagnetic resonance and the permeability tensor is close to a unit matrix.

由于实际中铁氧体器件工作远离铁磁共振频率，磁导率矩阵接近于单位阵，可以将铁氧体材料的引入看作是一种微扰。

We analyze and compare the advantage and the weakness of these two algorithms, and apply the second method to the approximation of tensor product offset surface.

文中分析和比较了这两种算法的优缺点，并将第二种方法推广应用于求张量积等距曲面的逼近。

The inflationary epoch is the expansion of the metric tensor at left.

通货膨胀的世纪是公尺张量的扩展在左边。

In order to study some problems relative to extremalblack hole and entropy,a falling-in physical particle in metric andelectromagnetic tensor field of a black hole is also studied.

为了探讨极端黑洞和熵的相关问题，我们还利用一个经典的模型研究了黑洞的演化过程。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！