随机和择优混合演化网络模型的稳定性

本文运用主方程等方法给出随机和择优混合演化网络模型稳态度分布存在性的严格证明,并推导度分布的表达式,进而得知该混合演化网络为无标度网络.     

次甲基绿－溴酸钾体系催化光度法测痕量钒（Ⅴ）的研究

本文基于在抗坏血酸存在下，痕量钒（Ⅴ）对溴酸钾氧化次甲基绿褪色的新指示反应，建立了一个催化动力学光度法测痕量钒（Ⅴ）的新方法。线性范围为０—０．１２μｇ／２５ｍＬ和０．１２—０．２０μｇ／２５ｍＬ，方法检出限为３．４×１０~（－１０）ｇ／ｍＬ。用于人发、水样中痕量钒（Ⅴ）的测定，结果满意。     

一类随机利率下的变额寿险模型研究

本文对随机利率采用在原点反射的布朗运动以及负二项分布建模,具体以即时给付的综合人寿保险模型为研究对象,对寿险理论中的保费,年金以及责任准备金进行研究,并给出相应的表达式。     

Morrey Estimates for Nondivergence Parabolic Operators with Discontinuous Coefficients on Homogeneous Groups

In this paper, by establishing the boundedness of singular integral operators with variable kernels and their commutators with BMO functions on Morrey spaces of homogeneous groups, we prove a local a prior estimate in Sobolev-Morrey space for solutions to the nondivergence parabolic equation with discontinuous coefficients.     

有关实正定方阵行列式的几个不等式

本文得到实正定方阵行列式的几个不等式，改进了近期研究的一些结果．     

Determination of organic acids in the presence of inorganic anions by ion chromatography with suppressed conductivity detection

Simultaneous separation of 19 organic acids and 10 inorganic anions has been demonstrated using ion chromatography with a high capacity anion exchange column and the suppressed conductivity detector under an auto-suppression external sulfuric acid mode. Quantitative merits of this method were examined for analysis of nine organic acids of potential significance in cell culture broth. External calibration curves for these analytes were linear with correlation coefficients exceeding 0.999, and the relative standard derivations of observed analyte concentrations were less than 3.0% in both inter- and intra-day evaluations of aqueous standards. Developed methodology was subsequently applied to obtain organic acid profiles of Luria-Bertani liquid media, yeast extract, peptone, and the culture broth of a mutant Escherichia coli strain. Analytes recoveries observed for triplicate analysis of LB media spiked at two concentration levels ranged from 88% to 105% with less than 7% RSD. These data demonstrate quantitative accuracy for LB media and suggest that the report method may also be applicable to complex samples such as fermentation mixture and lignocellulose hydrolysate.     

结构化学课件的开发与应用

阐述了多媒体用于结构化学教学的意义与必要性,介绍了用Authorware6.0组装制作的结构化学多媒体教学课件的逻辑结构和特点。探讨了采用计算机三维动画和多媒体技术描述结构化学中部分抽象问题的方法。     

铂锡铥和铂锡镱催剂上的烷烃芳构化反应的研究

用浸渍法制备了铂锡铥和铂锡镜催化剂。在脉冲微型反应器一色谱仪联合装置上,考察了环已烷、甲基环戊烷和正庚烷在上述催化剂上的芳构化反应。结果表明:稀土铥或镜改变了负载型铂锡催化剂的催化性能,其改性作用不尽相同,即使同一稀土元素也随其含量不同而异。     

含不连续系数的p-Laplace抛物方程的正则性［英文］

当系数矩阵满足一定的VMO条件时,利用Campanato凝固系数方法,证明一类退化抛物方程弱解的Morrey正则性.并且,利用H?lder连续函数的积分特征,对方程弱解建立局部最优H?lder连续性.