Appropriate model and space discretization were chosen to simulate the loading process of specimens conducted on the Split Hopkinson Pressure Bar in two-dimension,and the adiabatic shear deformation course of the hat-shaped specimen under high strain rate was obtained.

通過(guò)選擇恰當(dāng)?shù)哪Ｐ秃涂茖W(xué)的空間離散化欧美三级电影视频，對(duì)SHPB加載過(guò)程進(jìn)行了2D數(shù)值模擬中国美女一级毛片免费看，數(shù)值重現(xiàn)了帽型試樣高應(yīng)變條件下的絕熱剪切變形歷程。

From the Maxwells equations in integral form directly, the Maxwell Grid Equations are derived through discretization of the solution space and the equations, and thereout the common equation of arbitary structures. Secondly, the solution uncertainty of a common electro-magnetic equation is proved and a strategy is advised to get the unique solution of the finite integration equation.

直接從積分形式麥克斯韋方程組出發(fā)欧美性爱B，通過(guò)空間離散與方程離散得到麥克斯韋網(wǎng)格方程組美女AA毛片，由此得到任意結(jié)構(gòu)的一般方程；深入分析了麥克斯韋網(wǎng)格方程組的代數(shù)特性美日韩黄色一级，論證了其解的不確定性免费在线看黄片AV，并指出了一種可避免解不確定性的措施。

In this paper, firstly, the theory and the discretization schemes of LBIE and the concepts of MLS and GMLS are introduced; secondly, LBIE method is applied to solve the thin plate-bending problems and four typical examples are given to demonstrate the applicability and validity of the method. The results obtained from numerical examples agree well with the exact solutions and have an excellent rate of convergence.

本文首先介紹了無(wú)網(wǎng)格局部邊界積分方程方法的理論基礎(chǔ)和離散步驟欧美性爱激情综合，以及移動(dòng)最小二乘近似法和廣義移動(dòng)最小二乘近似法等概念女性一級AAAA黃片；其次將該方法初步應(yīng)用于計(jì)算薄板的彎曲問(wèn)題，建立了完整的積分公式A级国产乱人无码伦AV在线A，求解了四個(gè)典型算例97在线超碰资源在线资，結(jié)果同精確解非常接近，且收斂快91免费A级毛片。

Nozzle flow was assumed to be frozen, and convective and radiative heat transfer from gas to solid wall was considered. Discretization of the governing equations was performed with two order upstream scheme, and radiative heat transfer equation was solved with Discrete Ordinates method. Absorption coefficient of water vapor was calculated by Leckner formula.

計(jì)算中四虎永久在线精品免费下载，假定塞式噴管中的流動(dòng)為凍結(jié)流動(dòng)，考慮燃?xì)庀虮诿娴膶?duì)流換熱和輻射換熱天天摸天天爽视频69视频；采用二階迎風(fēng)格式離散控制方程欧美粗硬大三级视频在线播放，及DO模型離散求解輻射換熱方程，水蒸氣的吸收系數(shù)根據(jù)Leckner公式計(jì)算人人摸操人人操摸。

The invention performs pseudo bit error rate statistic by utilizing the message of multi sampling points in each modulation symbol of discretization system, and again performs one-to-one mapping by utilizing corresponding relation between the pseudo bit error rate and the signal-to-noise ratio, thereby obtaining signal-to-noise ratio estimation value.

本發(fā)明利用了離散系統(tǒng)每個(gè)調(diào)制符號(hào)中多個(gè)采樣點(diǎn)的信息進(jìn)行偽誤碼率統(tǒng)計(jì)久久免费看少妇高潮A级毛片按撑，再利用偽誤碼率與信噪比之間的對(duì)應(yīng)關(guān)系進(jìn)行一一映射，從而得到信噪比估計(jì)值国产AV自拍网站导航。

Results and Conclusion When the workpiece is of little elastic deformation, the discretization approach as proposed in this paper is appli- cable not only to the mathematical modeling for thread-cutting process, but to the modeling for processing simple workpiece by using complex cutter, and processing complex workpiece by using simple cutter.

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The method for parameter discretization and optimi zation of CWT is estabished. The concept of wavelet entropy is introduced and it is used as a rule for parameter optimization.

從參數(shù)離散到參數(shù)優(yōu)化系統(tǒng)研究了連續(xù)小波變換的工程應(yīng)用方法国产产一区二区三区久久毛片国语，建立了&小波熵&的概念，并以此作為基小波參數(shù)的擇優(yōu)標(biāo)準(zhǔn)最近中文字幕大全免费1。

The element-free Galerkin method was used for discretization of degree of freedom in space, the refinement integration method for time-domain integration, the modified variation principle to meet boundary conditions, the least-squares method for interpolating, and the Romberg algorithm for numerical integration.

該方法利用無(wú)網(wǎng)格方法進(jìn)行空間自由度的離散亚洲欧美自拍偷拍，采用精細(xì)積分方法對(duì)時(shí)域積分，采用修正變分原理滿足邊界條件人人操日夜干、最小二乘法進(jìn)行插值高清不卡在线免费av，龍貝格算法進(jìn)行數(shù)值積分。

This problem is partly solved in the Riemann case in order to establish a Godunov discretization, and then a node flow assignment method is given.

使用了一種簡(jiǎn)化的Godunov方法求解考慮多車(chē)型宏觀交通流模型综合激情四射，并給出了在十字路口多車(chē)型流量分配的方法www.黄色网站在线观看。

Meanwhile, the discretization scheme of the Laplace operator is improved, and more image information can be contained. Thus, the image features can be judged more accurately.

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