查询词典 two dimensional

A new method based on two-dimensional feature extraction in the complex domain is proposed for face recognition in this paper.

摘要该文提出了一种新的基于复数域中的二维特征提取方法进行人脸识别。

It is compact in structure, stable and efficient for practical uses with high package density. 7. Based on negative binary coding method, a modified two-dimensional crossed-ring interconnection network and four subarrays outproduct technique, an optoelectronic parallel martix-vector complex multiplication processor is presented.

借助负二进制数字表达、空间编码加权-移位四区域复数外积乘法技术和改进的矩阵-矢量啮合算法，研制了光电混合并行处理的矩阵-矢量乘法器。

In order to improve the performance of aerostatic bearing and enhance the reliability of system, the chief works of this paper represents as follows: First, on the foundation of development and present research situation of internal and external aerostatic bearings, this paper summarizes the principle of aerostatic bearing, according to several assumptions of work conditions, two-dimensional Reynolds equation of isotherm compressible fluid is deduced.

为改善气体轴承的性能，提高气浮轴承转子系统的安全性、可靠性，本文进行了如下研究工作：首先，本文在综述了国内、外气体静压轴承的发展历史和研究现状的基础上对气体静压轴承基本原理进行了概述，根据小孔节流静压气浮轴承的工作状况，作了若干假设，在此基础上导出了描述气膜压力场的二维可压缩Reynolds方程。

We have developed a finite element algorithm for computing the complex resistivity response of general two-dimensional models in the paper.

本文采用基于三角单元剖分的有限单元法进行了复电阻率二维数值模拟研究。

Based on the governing differential equations of the transient problem of temperature fields with phase change, the two-dimensional finite element formula of computing temperature fields around a buried pipeline in permafrost regions are achieved by using Galerkin's method.

根据相变瞬态温度场的控制微分方程，应用Galerkin法推导出计算温度场的二维有限元公式，对中国东北多年冻土区运行30年的加热输油管道土壤温度场进行了计算分析和比较。

Marc software, the two-dimensional simulation of isothermal extrusion forming process of globoidal cam was made. The influence of the different model cavity concave wedge angle a on the performance of filling billets was analyzed. It provided an important basis for the realization of cambered cam isothermal compression and the optimization of die structure.

用MSC。 Marc软件对弧面凸轮等温挤压成形过程进行了二维模拟，具体分析了不同凹模型腔楔角α对坯料填充性能的影响，为实现弧面凸轮等温挤压成形和优化模具结构提供了重要依据。

The purpose of researching the expressive form of the time's existing in the two-dimensional image is to probe into the abstractive or conceptive expressive pattern when we watch the image, so that we can have a more concrete basis for visual analysis and logic.

而研究时间存在平面图像中的表现形式，其目的在探讨当我们在观看图像时，抽象或概念性的表现型态，能有较具体的依据来做为视觉的分析与逻辑的依循。

Using the output data of a MM4 mesoscale numerical model which fairly well simulated the developing structure and the evolution of the "96.1" snowstorm event over Qinghai Xizang Plateau, a nonlinear and non zonally non parallel basic flow symmetric instability models and simulation system were developed to validate the possible effect of conditional symmetric instability on the formation of the snowstorm process, the results showed that in a developing model of two dimensional nonlinear SI i...

利用"96 。1"青藏高原东北部暴雪过程的较成功的中尺度模拟的输出资料，用非纬向非平行基流中的对称不稳定模式，对"96 。1"暴雪发生发展过程的动力学机制进行了三维基流中二维非线性对称不稳定数值模拟试验。结果表明，ψ场和w场的三维配置与切变线的演变过程相当一致，说明用三维基流中二维非线性对称不稳定可能能较好地描述SI在切变线东伸南移过程中所起的作用。

The new method of solving the hydraulic fracture moveable boundary problem by use of the method of the conformal transformation and body-fitted coordinate is put forward; according to the law of continuation, the transformation from the control equation in the physical plane to the calculation plane is completed, and two dimensional fluid field numerical simulation in the fracture is also finished.

提出了利用保角变换和贴体坐标变换处理水力裂缝动态边界问题的新方法，根据链导法则完成了物理域控制方程向计算域平面的转换，实现了二维流场的数值模拟； 5。

A boundary identification problem, i.e., inverse geometry problem of two-dimensional heat conduction was solved by using boundary element method and conjugate gradient method-based inverse algorithm.

采用基于边界元法和共轭梯度法的反演算法求解二维导热边界识别问题，即几何反问题。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。