黄瓜花叶病毒的侵染扩散及病变细胞的电镜观察

在电镜下观察黄瓜黄叶病毒的侵染扩散部位发现：病毒粒体入侵细胞及复掣一子 体的扩散同烟草花叶病毒一样是以整体形式向细胞壁靠拢，附着，并通过胞间连丝进入易感细胞，同时还发现少量病毒粒体似有直接穿过胞壁入胞的现象。     

基于斜交异性板单元的斜桥有限元分析

通过推导一种新型的斜桥分析单元──斜交异性板单元，实现了斜桥的空间有限元分析；通过与实用计算方法的对比，证明了这一方法的可靠性；最后，应用这一方法，结合工程实例介绍了斜桥影响面生成、影响面加载策略和斜桥的配筋计算在桥梁工程中的具体应用     

Preparation of Electrically Conductive Filler for Anisotropic Conductive Adhesive

Introduction As a competitive substitute of lead-containedsolder,ACAs appear a promising future due totheir numerous advantages,such as low-tempera-ture compatible assembly,higher packaging densi-ty,environmental friendliness,low-stress on thesubstrates.T…     

一类Gauss随机扩散过程方程组解的连续惟一及相合性分析

在完备概率空间(Ω,F,P)中,讨论了一类带非超前泛函的条件Gauss随机扩散过程方程组解的连续惟一性及其具有连续惟一强解的条件,并在方程组存在相应连续惟一强解的情况下,讨论了σ-代数Ftξ和Ftξ0,-W的相合性,得到了关于更新过程-W=(-Wt),t≥0包含有与可观测过程ξ相同“信息”的结果Ftξ=Ft0ξ,-W,0≤t≤T,该结论对于进一步研究此类过程的某些最优控制问题具有重要意义.     

介孔材料-酸性红12染料分子体系动力学模型的建立和模拟

以酸性红12作为多苯环长链发色有机物的代表,通过对有效扩散系数的测定,确定其在介孔材料颗粒体上的吸附等温式和平衡接近率随时间变化的关系.利用非稳态扩散传质与非稳态热传导过程类比速率方程相似的特点,应用Peterson的热传导近似公式,用计算机求解超越方程,得到了酸性红12在介孔复合材料颗粒内的有效扩散系数并进行了拟合验证,得出该传质过程的主要作用力类型.     

A Class of Nonlinear Nonlocal Singularly Perturbed Reaction Diffusion Systems

The singularly perturbed initial boundary value problems for the reaction diffusion system are raised. Firstly, under suitable conditions, using a iteration technique, the differential inequalities theorem is constructed and introducing two auxiliary functions the existence and uniqueness theorem of solution for the basic reaction diffusion system is proved. Using the singularly perturbed method the formal asymptotic expressions of the solution are constructed with power series theory. By using the comparison theorem the existence and its asymptotic behavior of solution for the original problem are studied. Finally, using method of estimate inequalities, the structure of solutions for the problem is discussed thoroughly in three cases and asymptotic solution of the original problem is given. The asymptotic behavior of solution in the three cases is proved.     

硅铬共渗

探讨了SiCr共渗工艺参数、含碳量、合金元素对渗层组织的影响 ,并探讨了稀土元素的作用 .结果表明 :共渗温度升高、时间延长和含碳量减小 ,均使SiCr共渗层厚度增加 ,合金钢 (2 0Cr、16Mn)的渗层厚度小于碳钢 (2 0 ) ,加入 5 %稀土使渗层变厚 ,并改变渗层组织性能     

解二维扩散方程的Du Fort-Frankel差分格式

DuFort-Frankel差分格式是对Richardson格式进行修正得到的差分格式。本文将它从一维推广到二维,给出了二维DuFort-Frankel差分格式相容性所满足的条件,并严格论证了它的绝对稳定性     

IDT-TAM Integrated Model for IT Adoption

Two classical theories, the technology acceptance model （TAM） and the innovation diffusion theory （IDT）, were integrated into a model for analyzing individual information technology （IT） adoption behavior. In this IDT-TAM framework, the perceived characteristics of innovation are categorized as subjective evaluation, objective conditions, and interaction factors. The cognitive mechanisms that drive user IT acceptance are analyzed based on the patterns through which these characteristics influence individual user IT adoption behavior. The model was tested using an empirical survey regarding the adoption and use of e-mail in China. Results from a structural equation model analysis illustrate that the model provides meaningful insights for understanding, explaining, and predicting the IT adoption behavior of Chinese users.     

关于一类扩散过程的随机变分计算

对一类比较广泛的随机微分方程的解进行了随机变分计算，在一定条件下得到了相应的分部积分公式．