In the study of microwave sintering of BaTiO〓 PTC ceramics, when the applied microwave power are above than a certain value, the abnormal axial shrinkage of the sintered sample will occur, by the analysis of SEM and XRD, it is found the microstructure and phase are different with conventionally sintered sample, the reason for this phenomenon is due to orientational grain growth by the action of electric field in the microwave sintering process.

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An iterative temperature field model of cylinder, in which the non-linear steam temperature distributed along axial direction, was got based on two-dimensional transient heat conduction differential equation. Analytical simulation demonstrates not only a rapid solution convergence but a minor error.

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The axial spectral blueshift increases with increasing C and approaches an asymptotic value in the far field.

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It is shown that the spectrum of the axial points in the focused field is quite different from that of the incident light.

研究結(jié)果表明：即使在自由空間，空間相干度的變化都能引起顯著的光譜變化激情免费视频观看网站在线观看。

In this thesis the rotary arc gap-switch in axial magnetic field is fully explored.

本文研究對象是軸向磁場控制的旋轉(zhuǎn)電弧開關(guān)国产特黄大片美女精品。

The effects of space charge and axial magnitic field on the measurements were considered .

考慮了空間電荷和軸向磁場對測量的影響。

The theory and method of simulating axial symmetry field by plane resistance net-work are intreduced in this paper.

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This paper makes the fitting analysis of the field test data according to the hyperbolic model established by the interface spring theory,and simulates the experiment of bolt upraising by means of the finite element method.After the comparison of the calculated results with the field test results,the paper draws the main conclusion that good fitting effect can be obtained when the hyperbolic model is adopted in fitting the relationship between axial force and depth.The interfacial shearing stiffness will so...

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In regard to the practical coking process, a kinetic two-dimension coordinate calculation method was established in determination of the temperature field and its stress field of coke tower shell both in radial and axial directions with reference to shell innate flow rate by FEM.

通過動態(tài)坐標(biāo)法模擬了恒速上升的液體介質(zhì)界面在焦炭塔內(nèi)沿塔壁爬升的動態(tài)邊界工況中国野外性农村xXxXHD，對其在壁中引起的徑向和軸向二維瞬態(tài)溫度場進(jìn)行了有限元計算亚洲欧洲日韩黄片一区二区。

The electric-field and potential distribution along a post insulator under dry and clean conditions are calculated through the Finite Element Method.and three principles about model building are presented.In theprocess of solid modeling.the post insulator is simplified to a 1/2 area model because of its axial symmetryt and anannular area is innovatively presented to represent the field at infinity.W hen area meshing.the metallic fittings ofthe insulator are omitted.

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