To determinate volumes and directions of the principle stresses, constantly three 1/4-bridges should be applied to measure normal strains along three sensitive grids. Based on the analysis of the plane stress state and generalized Hooke's law, volumes and directions of the principle stresses at one point will be obtained.

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The algorithm for body-fitted coordinate grids generation is one of the key techniques of numerical simulation in hydrokinetics.

貼體坐標網格生成算法是流體動力學等領域中進行數(shù)值模擬的關鍵技術問題超碰在在线。

In the paper, river and the downstream area of dike are regarded as a whole system, and hydraulic model of coupling 1-D river and gradual dike-break is established, therein the Preissmann implicit difference scheme is applied to Main River, and the FVM is applied to the breach and polder. On the basis of FVM and unstructured grids, TVD ?

本文將河道與堤壩下游區(qū)域視為一個整體，對于單一河道采用Preissmann四點隱式差分格式計算日韩福利一级视频在线播放网站免费，對于潰口及圩區(qū)采用有限體積法日韩毛片免费高清在线视频，建立了一維河道與堤壩漸潰耦聯(lián)的水力模型，也是一維A片勉费视频网站、二維耦合的水流模型婷婷五月天激情综合网。

First attempts confirmed the rightness of this idea, but at the same time also the practical inaptness of such grid lenses because of the too-strong absorption of the electron beam at the four grids and due to the field distribution by the wires.

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This paper integrated the experts' judgments with grids as the sampling strategy in an abandoned pesticide plant in northern China, and applied a geostatistical method, inverse distance weighted interpolation, to simulate the pollutants- and risk spatial distribution.

本文以北方某廢棄農藥廠為例，結合專家判定采樣法與網格采樣法白白在线视频免费费观看，采用地統(tǒng)計學方法中的反距離加權空間插值法日本不卡的涩涩网站，分兩種情形將大于土壤環(huán)境基準值的區(qū)域劃定為治理范圍。

The waveform digitizer was employed to record pulses from the two grids of the ionization chamber.

采用數(shù)據采集卡對電離室的極板信號進行記錄亚洲黄黄视频。

Most of the current finite element software packages treat it using the net-radiation method or absorbed radiation method based on the assumption of isothermal surface with uniform radiation heat flux,which brings the conflict between the precision and the quantity of grids.

進行了選用高階單元国产精品路边搭讪素人、采用高斯積分精確計算單元表面變輻射熱流方法的研究，從而擺脫了一致表面溫度和輻射熱流的假設国产夫妻视频，使得在相同網格密度的情況下計算精度大大提高久久只精品99品免费久苍井空；同時，從包含輻射換熱問題的有限元計算方程出發(fā)久久国产亚洲欧洲一区二区，采用與有限元數(shù)值計算時相同的積分方案91黄色大片在线观，只在獨立的積分點處計算輻射熱流，克服了積分方法計算效率低的缺點男人天堂精品自拍。

The first 10 months, Shaanxi Province started the current NT highest voltage 750 kilovolt網架工程, a group of backbone power grids and substations have accelerated the pace of construction.

前10個月裸体女人的视频一级A片，陜西省全面開工了目前西北地區(qū)電壓等級最高的750千伏網架工程，一批骨干電網和變電站都加快了建設步伐AAA级草久影院。

In order to overcome them, another simple but highly effective method is proposed in this paper. This method is based on mechanical model of spline function. The principle is that the vertical displacements of elastic lamella grids the elevation of land key points. Consequently we can use the finite element method to draw contours accurately.

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In this study a cell-centered finite volume method on unstructured grids is used to solve Laplace's equation.

本研究以非結構性網格型式的體心共位有限體積法求解拉普拉斯方程式欧美亚洲天堂在线。