F值函数的微分及其在FNN中的应用

本文引进了集值函数的ｓ－可微和模糊值（Ｆ值）函数的Ｆｓ－可微概念。给出了这两种可微性的几个判别条件。最后研究并得到了一类模糊神经网络（ＦＮＮ）的Ｆｓ－可微性和连续性。     

右连续上鞅的提升及其应用

本文首先给出了一个右连续上鞅的ＳＤ提升，在引进Ｓ－上鞅和强Ｓ－上鞅概念之后，研究了一一致可积上鞅与Ｓ－上鞅，类上鞅与强Ｓ－上鞅之间的关系，并得到了Ｓ－上鞅与强Ｓ－上鞅的许多性质，作为其直接结果，给出了类上鞅的Ｄｏｏｂ－ＭＮｅｙｅｒ分解。     

多层前向正则模糊神经网络的逼近能力

Abstract. Four-layer feedforward regular fuzzy neural networks are constructed. Universal ap-proximations to some continuous fuzzy functions defined on (R)“ by the four-layer fuzzyneural networks are shown. At first,multivariate Bernstein polynomials associated with fuzzyvalued functions are empolyed to approximate continuous fuzzy valued functions defined on eachcompact set of R“. Secondly,by introducing cut-preserving fuzzy mapping,the equivalent condi-tions for continuous fuzzy functions that can be arbitrarily closely approximated by regular fuzzyneural networks are shown. Finally a few of sufficient and necessary conditions for characteriz-ing approximation capabilities of regular fuzzy neural networks are obtained. And some concretefuzzy functions demonstrate our conclusions.     

带阈值的Min—max模糊Hopfield网络的稳定性与容错性分析

本文讨论了带阈值的Ｍｉｎ－ｍａｘ模糊Ｈｏｐｆｉｅｌｄ网络的性质，并研究了该网络的一致稳定性与平衡态的Ｌｙａｐｕｎｏｖ稳定性。给出了一个模糊模式成为该网络吸引子的等价条件。然后在一定的条件下，得到了这个网络吸引子的一个非退化的吸引域，从而我们所建立的模糊神经网络模型具有较强的容错性，最后的例子证实了这一点。     

Loeb空间上一类右连续过程最优停止的非标准表示

本文在Loeb空间上得到了右连续左半上连续的随机过程的SRC提升．证明了一个内过程的S-最优停止的存在性,并得到了它的结构性表示．最后证明了一个过程SRC提升的S-最优停止的标准部分即为对应标准过程的最优停止,在Loeb空间上推广了[8]中的结果．     

Loeb空间上一类右连续过程最优停止的非标准表示

本文在Loeb空间上得到了右连续左半上连续的随机过程的SRC提升．证明了一个内过程的S-最优停止的存在性,并得到了它的结构性表示．最后证明了一个过程SRC提升的S-最优停止的标准部分即为对应标准过程的最优停止,在Loeb空间上推广了[8]中的结果．     

Study the radiation effects on 4-vinylpyridine-based porous resins in 99Tc adsorption

The 4-vinylpyridine-based porous resins (4VP–DVB and 4VP–DVBQ) were synthesized to adsorb ⁹⁹Tc from radioactive waste. The radiation stability of the synthesized resins were investigated in air, water, HCl, and HNO₃ mediums. The radiolytic degradation of resins was evaluated by the total organic carbon analysis. The weakly basic resin (4VP–DVB) and strongly basic resin (4VP–DVBQ) showed a remarkable resistance to radiation in HCl and HNO₃ solutions respectively. Moreover, adsorption behavior of irradiated 4VP–DVB and 4VP–DVBQ resins toward ⁹⁹Tc was studied by the batch experimental method.

     

一类广义模糊双向联想记忆的稳定性

本文在（３）的基础上引入了一类广义的动态网络模型－带阈值的模糊双向联想记忆，并系统地研究了该网络的稳定性，证明了这个系统对于任意的连接权矩阵和阈值向量是全局稳定的，而系统的平衡态又是Ｌｙａｐｕｎｏｖ稳定的，最后用实例验证了我们的结论。     

Pulse radiolysis investigation of <Superscript><Emphasis Type="Bold">·</Emphasis></Superscript>OH and <Superscript><Emphasis Type="Bold">·</Emphasis></Superscript>H radicals initiated degradation reaction of sulfonated aromatics as model compounds for proton exchange membrane

In order to predict ^· OH and ^· H radicals initiated degradation of proton exchange membrane (PEM) based on polymers obtained by radiation-induced grafting of styrene or α-methylstyrene on different polyolefin, isopropyl benzene sulfonic acid (IPBS) and tert-butyl benzene sulfonic acid (TBBS) were taken as model compounds for PEM with and without α-H, respectively. Results indicated that ^· OH radicals played a vital role in PEM degradation. Eighty-nine percent of ^· OH radicals reacted with IPBS to form benzylic radicals by electron transfer and subsequent deprotonation reactions. Benzylic radicals can react with O₂ to form peroxyl radicals, which leads to PEM degradation. TBBS, without α-H, reacted with ^· OH or ^· H radicals, benzylic radicals would not be generated, and only adducts were formed. Adducts have less influence on the stability of TBBS than benzylic radicals. In this work, we elucidated that PEM, without α-H, with similar structures to TBBS, had a stronger resistance to oxidative degradation than PEM with α-H, with similar structures to IPBS.     

模糊神经网络理论研究综述

本文对于近年来受到普遍重视的前向模糊神经网络及有反馈的模糊神经网络的性质、学习算法及应用等方面的研究进行了较为详尽的综述，分析了所取得的主要成果及其特点，并指出了今后模糊神经网络理论研究中有待解决的许多问题。