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orthogonal coordinates相关的网络例句

查询词典 orthogonal coordinates

与 orthogonal coordinates 相关的网络例句 [注:此内容来源于网络,仅供参考]

It is shown that in Jameson's algorithm is not an orthogonal stream-lines coordinate system, but a local stream-lines coordinate system instead. Nevetheless, because of the finite-difference discretization in Jameson's scheme is not carried out along the direction of s and n, but along the Cartesian coordinates, the analysis on all terms of the full potential equation in Cartesian coordinates reveals that his scheme does take a back-ward difference along the streamwise exactly at all points in the supersonic flow region.

表明其所采用的坐标系不是真正的正交流线坐标系,而是局部流线坐标系;同时由于Jameson方法并不对s,n进行差分离散,而是在原笛卡尔坐标系下作差分离散,对笛卡尔坐标系下的全位势方程中的各项的分析表明,Jameson方法恰好能做到在超音速点沿真正的流线方向作后差分。

A special type of half-plane problems of elasticity is presented and discussed. By using two methods in polar coordinates and orthogonal coordinates respectively, the analytical expressions of stress components are solved in the two coordinates. There are little differences between both results, which confirm the equivalence of the two methods.

针对一类特殊的弹性半无限平面问题,分别给出了其在极坐标系与直角坐标系下的求解过程,获得了在这两种坐标系下应力分量的解析表达式,并对这两种解法的结果进行了比较与讨论。

To compensate for nonlinear distortion of RF power amplifiers, a novel adaptive digital predistortion method based on piecewise polynomial was proposed, and multiple lower-odd-order-only polynomials in the form of orthogonal coordinates were used for predistorter design.

为补偿RF功率放大器的非线性失真,提出一种新的基于分段多项式的自适应数字预失真方法,使用多个直角坐标形式的低阶奇次多项式设计预失真器。

Currently, orthogonal coordinates one-way wave downward continuation has been accepted by petroleum industry as a tool for imaging complex geology because of its efficiency, accuracy, stability and ability of handling rapid velocity variation.

目前,正交坐标系单程波下行延拓以其计算效率、精确性、稳定性和处理高速变化速度模型的能力,成为工业界普遍采用的复杂介质成像方法。

Basing on the equivalent Maxwell's equations, the dissertation presented derivation of quasi-perfectly matched layers absorbing boundary conditions in general orthogonal coordinates.

本文从等效的Maxwell方程近似推导了广义正交坐标系的准完善匹配层吸收边界条件。

In display parts of the above-mentioned system, one key technology of the digital of radar video image has been solved. After A/D conversion and clutter suppression pretreatment, the radar analog data can be converted from polar coordinates to orthogonal coordinates and displayed in real time. Further, the image can achieve higher resolution and display speed in host.

本文所述显示系统中,结合实际需要,解决了该系统中雷达图像数字化的一种关键技术,将雷达模拟回波数据经A/D变换和杂波抑制预处理后,从极坐标到直角坐标实时地转换,并在计算机的光栅扫描显示器中显示,能够获得分辨率较高、实时性较好的雷达图像。

The model of the discrete ordinates method and the finite volume method in multi-dimensional orthogonal coordinates, and body-fitted coordinates is established to solve the radiative transfer equations in absorbing, scattering media.

建立了离散坐标法及有限体积法、正交坐标系多维,贴体坐标系多维吸收、散射性介质内的辐射传递计算模型。研究非灰体粒子系内辐射传递及将其简化为灰介质系的有效方法。

When these coefficients are quadratic functions of the porosity, specific constituent orthogonal weighting coefficients are derived from these orthogonal conditions along with a discussion about how to extend the applicable range of the constituent orthogonal weighting coefficients in the orthogonal coordinates. Based on the combination of the theory of critical porosity and the constituent model, it presents a specific example of the constituent model that includes two transforming points. The reasonability of above-mentioned theories is shown by comparison of theoretical calculations and measured data on effective elastic moduli of clean sandstone or sandstone analogs saturated with pure water.

再次,结合弹性模量组分关系方程与正交基函数理论,推导组分加权系数的正交条件;基于正交条件,提出组分加权系数为孔隙度二次多项式时正交组分加权系数的构造方法以及正交组分加权系数适用范围的拓展方法;结合临界孔隙度理论,提出一个基于两个状态分界点的组分模型实例;比较组分模型的计算结果与前人关于砂岩弹性模量的实验结果,证明了组分孔隙介质模型理论的合理性。

Thirdly, the standered SIMPLE algorithm of Patankar forsolving tWo-dAnensional elliPtic kind equations in orthogonal coo-rdinates is developed, A gerneral comPuter program for solvingequations goveming the laxninar flows and tubulent flows usingcolocated grids in orthogonal coordinates is built.

在S.V Patanker求解二维定常椭圆型方程的SIMPLE程序的基础上,加进同位网格的内容,编制了层流、紊流计算程序,用1)平行平板层流;(2)后台阶层流:(3)正方形方腔层流自然对流三种典型流动状态检验了层流同位网格SIMPLE计算程序,结果显示与一般规律及理论解吻合甚好。

After nest found, the dominating ecological factors with definite distance to nest tree (less than 10 meters) including tree species, tree height, habitat type of nesting-tree, nest position, the type of nesting tree branch, nest type, the type of nest-site, the viability status of tree and branch was described and measured. Geography coordinates (latitude-longitude) was converted into orthogonal coordinates, and add to Arcview3.2 as shape-file, and measured the distance between nest and the habitat type including double-line river, lake, seasonal lake, shallow mire, deep water mire, meadow mire, farmland, sparse forest, forest marsh, the boundary of Nature Reserve and road.

将调查所获得的东方白鹳巢址坐标转换成平面直角坐标,并将巢位点作为Arcview3.2中的矢量图层加入到已经矢量化的洪河保护区生境类型图中,运用Arcview3.2的距离量算功能,量算出每个巢距各生境类型的距离,包括双线河、湖泊、时令湖、轻沼泽、重沼泽、沼泽化草甸、旱田、疏林和森林沼泽,以及距保护区边界和公路的距离。

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