A static interval optimization method for structures was proposed. The matrices of structures with interval parameters were given. Combining the interval extension of function with the perturbation theory of static analysis, the method for interval static analysis was derived.

提出了一種在位移約束下結(jié)構(gòu)靜力區(qū)間優(yōu)化方法，給出了區(qū)間參數(shù)結(jié)構(gòu)矩陣青春草视频网站，將結(jié)構(gòu)靜力分析的攝動(dòng)理論與區(qū)間函數(shù)擴(kuò)張定理相結(jié)合综合九九色，推導(dǎo)了結(jié)構(gòu)靜力分析的區(qū)間方法。

The asymptotic solutions of non-uniform conical shells under arbitrary boundary conditions are determined by double-parameter perturbation technique and transfer function method.

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Wetland ecosystem; Perturbation factors; Structure; Function; Songnen plain

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Vibro-impact system; Poisson white noise; Perturbation approach; Probability density function; Generalized Fokker-Planck-Kolmogorov equation

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For polydisperse systems at large Péclet number, we establish the systems of differential equations describing the leading term and the second term of the pairdistribution function via regular perturbation method.

針對(duì)高Péclet數(shù)情形美女网站十八污，通過(guò)正則擾動(dòng)法我們建立了決定對(duì)分布函數(shù)的微擾展開(kāi)的主導(dǎo)項(xiàng)和一階項(xiàng)的聯(lián)立方程組欧美成年男女免费性爱视频，并用由此算出的對(duì)分布函數(shù)的數(shù)值解計(jì)算了系統(tǒng)的沉降系數(shù)。

Based on the nonlinear dispersion relation of electromagnetic wave in relativistic plasma, the nonlinear controlling equation for linearly polarized mode is obtained using Karpman's method. The modulation instability of intense laser pulse propagating through relativistic plasma is analyzed and the modulation instability growth rate as a function of perturbation wave number for laser beam propagating through relativistic plasma is given.

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For single wall carbon nanotubes, we study the nonmagnetic and magnetic impurity effects on zigzag nanotubes by Green's function perturbation method and found that the impurity effects are different for semiconducting and metallic nanotubes. Arbitrary potential can induce a bound state in semiconducting nanotubes, and resonance state in metallic tubes.

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根據(jù)行星的介紹，他們利用歐洲南方使用建立天文臺(tái)3.6米口徑的智利一集的山2400米的海拔馬鞍型AV毛片免费久久久久性色，提出確認(rèn)將于南部的恒星"格里斯581"所在的內(nèi)沿1024手机看片金沙久久国产，同時(shí)對(duì)球尺度占星速度見(jiàn)的天文望遠(yuǎn)鏡因?yàn)樗車床坏焦潭ǖ囊ψ饔茫?quot;攝動(dòng)出現(xiàn)日韩一级黄片一区二区，隨后估計(jì)這是一個(gè)紅色的和短期的"新地球"輪明星鄰居母親圍繞太陽(yáng)固定期限和質(zhì)量革命之星"的明星国产a片一级毛片网站。

The effects of lipid bilayer perturbation and lipid reconstitution on the structure and function of photosystems ...

本論文主要從膜脂結(jié)構(gòu)擾動(dòng)引起的蛋白質(zhì)變性和膜脂重組誘導(dǎo)的復(fù)性這兩個(gè)角度對(duì)高等植物光系統(tǒng)的結(jié)構(gòu)和功能進(jìn)行了研究。

The effects of lipid bilayer perturbation and lipid reconstitution on the structure and function of photosystems in higher plants were studied.

本論文主要從膜脂結(jié)構(gòu)擾動(dòng)引起的蛋白質(zhì)變性和膜脂重組誘導(dǎo)的復(fù)性這兩個(gè)角度對(duì)高等植物光系統(tǒng)的結(jié)構(gòu)和功能進(jìn)行了研究欧美一级特黄AAAA片免费。