均匀分布判据
- 与 均匀分布判据 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Based on the laminate theory, a laminate weakened by damage is treated as an anisotropic thin plate. Using the complex potential method in the plane theory of elasticity of an anisotropic body, the series solution of finite anisotropic thin plate containing an elliptical inclusion is proposed with the help of Faber series. A hybrid element with an elliptical inclusion for anisotropic materials is obtained by using the hybrid variable principle, and the element efficiency is verified by numerical examples. The state of the damage is modeled by an elliptical soft inclusion, and using the point stress criterion based on characteristic curve and Yamada-Sun etc. criteria, the prediction of the strength of a composite laminate with damage is set up. The effects of various parameters on the stress distribution and the residual strength of a composite laminate weakened by damage are detailedly studied.
首先基于经典层板理论,将复合材料层板的弹性问题化归为均匀各向异性板来求解;采用各向异性体平面弹性理论中的复势方法,以Faber级数为工具,给出了有限大含椭圆核各向异性板弹性问题的级数解形式;利用杂交变分原理,成功导出含椭圆核各向异性板杂交应力有限元,并用算例验证了该单元的可行性和有效性;采用含刚度折减椭圆形弹性核的冲击损伤模型,引入基于特征曲线和Yamada-Sun破坏准则的点应力判据,建立了含损伤复合材料层板剩余强度的分析方法;通过数值计算详细讨论了各种几何参数对损伤层板应力分布、剩余强度的影响,得到了一系列对工程应用具有实用价值的结论。
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A novel SOI high voltage device with a compound dielectric buried layer is proposed,and an analytical model for its electric field and potential is established.A unified criterion of RESURF condition for CDL SOI and a uniform dielectric buried layer SOI device is given.
提出复合介质埋层SOI(compound dielectric buried layer SOI,CDL SOI)高压器件新结构,建立其电场和电势分布的二维解析模型,给出CDL SOI和均匀介质埋层SOI器件的RESURF条件统一判据。
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Our main work is as follows: the stable laser mode theory in uniform plasmas is extended to non-uniform plasma cases; the discussion of the sufficient and necessary conditions for laser self-focusing in uniform plasmas is developed to non-uniform plasma cases; a quantitative approach to judge the impact of different plasma density distribution on laser self-focusing is proposed; the evolution properties of asymmetric laser filed in non-uniform and uniform plasmas are discussed and mechanisms that symmetric channel-like plasmas can confine the laser centroid around the plasma channel axes and symmetrize initially asymmetric laser beams are proposed; the formation of solitary standing wave in moderate plasma density is studied by PIC simulations and can be explained by stimulated Raman scattering of laser beams in plasmas.
主要工作为:把均匀等离子体中激光的稳定模理论推广到横向非均匀等离子体情形;把均匀等离子体中激光自聚焦的充分和必要条件的讨论推广到横向非均匀等离子体情形;给出横向密度分布不同的等离子体影响激光自聚焦的定量判据。讨论了初始不对称的激光场在横向非均匀及均匀等离子体中的演化特性,并提出了具有对称腔道结构的等离子体箍缩激光质心和对称化初始不对称激光场的物理机制。用粒子模拟讨论了激光场在等离子体中形成孤立驻波的过程,认为前向受激拉曼散射是发生此现象的可能机制。
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Further, like most other cases such as gas/liquid membrane contactors, the overall mass transfer coefficients K of this novel membrane contactor in distillation decreased while fiber packing fractions became bigger, which presented a strong relationship between shell mass transfer and fiber packing fraction.
据此可作为膜接触器结构设计的判据,即当膜接触器填充密度较低时,其传质性能主要受中空纤维膜分布不均匀度影响;而当填充密度高时,组器结构对传质的主要影响因素应为沟流和死区。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。