关于L—模糊集的分解定理与表现定理

文〔3〕、〔4〕在L稠密的条件下,得到了L—模糊集的分解定理与表现定理。但在实际中我们所用到的很多格都不具有稠密性。本文将在应用相当广泛的一类格——连续格上建立L—模糊集的分解定理与表现定理,大大地扩展了集合套的应用范围。     

用边界元素法计算直流电测井响应

从三维稳恒电流场问题的边界积分方程和基本解出发，导出了轴对称条件下的边界元方程，得到了普通电阻率测井和侧向测井响应计算的实用算法，并计算了几种简单测井响应问题，结果表明，该方法可以用于复杂条件下的直流电测井响应的计算。     

可能性理论在工业项目可行性研究中的应用

本文在有关文献的基础上、提出Fuzzy集合基数的定义及可能度的概念，并应用于工业项目可行性研究中方案决策的判定法．同时给出Fuzzy可能度评判标准。     

Navier－Stokes方程的特征混合元方法的数值分析

考虑二维的一般有界区域上的Ｎａｖｉｅｒ—Ｓｔｏｋｅｓ方程的数值解问题，给出了全离散格式，证明了此格式的唯一可解性，得到了此格式数值解在Ｌ２模意义下的最优误差估计．     

Assembling Zwitterionic, Water-Soluble Porphyrin and Its Biological Studies

A kind of zwitterionic water-soluble porphyrin 5-(N-trimethyl-4-aminiumphenyl)-10, 15, 20-tri (4-sulfonatephenyl) porphyrin trisammonium salt, has been synthesized. Its biological studies, interactions with DNA and bacteria cells, were investigated. The damage to the cell wall of bacteria E. coli were observed firstly by AFM (Atomic Force Microscope).     

实施“国家半导体照明工程”计划——厦门在行动

半导体照明技术是21世纪最具发展前景的高新技术领域之一，作为新型高效固态光源，半导体照明具有寿命长、节能、安全、绿色环保、无热辐射、色彩丰富、微型化、易控制等显著特点、发光光谱已覆盖红外、紫外、可见和全波段。半导体技术与普通照明产业的结合引发了照明产业的科技革命和产业革命。     

土木工程专业系列教材

自1998年起，同济大学按教育部新颁布的普通高等学校本科专业目录，直接以“土木工程”这一宽口径专业进行招生和培养．在总结土木工程专业教育改革与实践的经验基础上，同济大学土木工程学院组织优秀师资力量编写了土木工程专业系列教材，该系列教材已由同济大学出版社作为土木工程系列丛书(教材系列)陆续推出。     

Na(THF)2(μ2-η5-Cp)(η5,η5,η1-Cp3Yb)(THF)]n: The synthesis and X-ray structure of an anionic organolanthanidepolymer formed via self-assembly

Cp2Yb·2THF reacts with CpNa in 1：1 molar ratio in THF at 40℃ for 2 h, and the in situ generated anionic divalent complex NaYbCp3（THF）n reacts further with an excess of CpH at 40℃ for 48h, after work-up, affording the trivalent anionic ytterbium complex[Na（THF）2（μ2-η^5-Cp） （η^5, η^5,η^1-Cp3Yb）（THF）]n：（1） by oxidation reaction of Cp2Yb with CpH. Crystal structure determination reveals that complex 1 has one-dimension polymeric chains of distinct Na（THF）2（μ2-η^5-Cp） （η^5, η^5,η^1-Cp3Yb）（THF） units, which were formed by the coordination of the bridging Cp ligand with Cp3Yb＇THF and Na（THF）2 in η^5,η^5 mode via self-assembly.     

Effect of density of hydrogen-bonding donor on hydrogen-bonded multilayer buildup

The effect of density of hydrogen-bonding donor （HBD） on the formation of layer-by-layer assemblies of poly（4-vinylpyridine） and poly（4-vinylphenol） was investigated. For this purpose, a series of ethyl-substituted poly（4-vinylphenol） （EsPVPhf） with variable ethyl substitute percentage was synthesized by grafting the phenol moiety along the poly（4-vinylphenol） backbone with 1-bromoethane. UV-vis spectroscopy revealed a uniform deposition process of the hydrogen-bonded multilayer consisting of poly（4- vinylpyridine） （PVPy） and EsPVPhf with variable density of HBD. Notably, it was found that increasing the HBD density of EsPVPhf resulted in a marked decrease of both amount of polymers adsorbed and film thickness, which should be related to the EsPVPhf conformation change from coiled state to extended conformation in ethanol solution. Compared with the effect of charge density in polyelectrolyte multUayer, however, there does not exist a critical density of HBD in our case of hydrogen-bonded multilayer assembly. In addition, surface structures of PVPy/EsPVPhf multilayer films also can be tailored controllably by adjusting HBD density of EsPVPhf. As a result, a new method for tuning the structure of hydrogen-bonding-directed multilayer films was developed.