约束装箱问题的混合遗传算法求解

本将最佳适应法和遗传算法相结合，提出了一种新的启发式混合遗传算法对具有时间约束的装箱问题进行求解，给出了具体的算法步骤，试算结果表明基于启发式算法的混合遗传算法适合于求解各种约束条件下的大规模装箱问题。     

催化动力学光度法测定痕量钴(Ⅱ)

本法基于钴 (Ⅱ )对高碘酸钾氧化孔雀绿的催化作用 ,提出一种灵敏地测定痕量钴 (Ⅱ )的新方法。该方法线性范围在 0～ 0 8μg·2 5mL- 1 ,检测限为 2 1× 10 - 1 0 g·mL- 1 。测定出反应表现活化能Ea=37 94kJ·mol- 1 。此法用于茶叶、维生素B1 2 中钴的测定 ,结果满意     

脉冲功率器件直流和动态热特性探测

介绍了针对影响微波脉冲功率器件可靠性的热性能问题，应用红外热分析技术。对比探测微波脉冲功率器件在动态和直流状态下的温度分布，峰值结温，热阻及其变化规律。     

Asymptotic speeds of spread and traveling waves for monotone semiflows with applications

The theory of asymptotic speeds of spread and monotone traveling waves is established for a class of monotone discrete and continuous‐time semiflows and is applied to a functional differential equation with diffusion, a time‐delayed lattice population model and a reaction‐diffusion equation in an infinite cylinder. © 2005 Wiley Periodicals, Inc.     

用于频率合成器的低损耗声表面波滤波器

简述了产生声表面波滤波器插入损耗的主要机理和获得低损耗的原则；介绍了根据此原则对１００～５００ＭＨｚ５种滤波器的研制过程和结果。实验表明，采用镜像阻抗连接换能器结构可达到３～４ｄＢ的低损耗，并成功地应用于频率合成器中。     

关于布尔函数的二次逼近

本文首先利用矩阵形式引入了二阶ｗａｌｓｈ谱的概念并讨论了其性质，其次引入了二次ｂｅｎｔ函数的概念，同时论述了二次ｂｅｎｔ函数的密码学意义。     

单模光纤中模耦合微扰功率谱与偏振关系的研究

提出用测量光纤偏振耦合率来确定模耦合系数，从而得到耦合微扰功率谱与双折射关系。它给出了光纤拉制中微扰作用 的信息，是研制偏振光纤的一种有效方法。     

铁电致冷材料及其应用

利用铁电材料的电热效应（即逆热释电效应）可以制作新型致冷器。近年的研究进展表明，铁电致冷有可能发展成为一种新型的室温致冷技术。本文扼要介绍了铁电致冷的基本原理、可行性，以及铁电致冷材料和相关技术的发展，并展望了铁电致冷材料的发展前景。     

紧矩阵量子群G的余表示与其对偶量子群(A)的关系

设 G=（A,△）为紧矩阵量子群,G为A的所有有限维光滑的、不可约余表示等价类的集合.本文通过（A,△）的一个余表示Vo构造了两个相互配对的集合,利用Hilbert C＊-模的理论证明它们分别为A和Baaj与Skandalis构造的量子群A,并且证明了对任意的α∈G,在A中都对应一个有限维投影算子Pα,满足 dim（α）=dim（pα）.     

Synthesis and characterization of novel thermoresponsive‐co‐biodegradable hydrogels composed of N‐isopropylacrylamide,poly(L‐lactic acid), and dextran

A series of novel multifunctional hydrogels that combined the merits of both thermoresponsive and biodegradable polymeric materials were designed, synthesized, and characterized. The hydrogels were copolymeric networks composed of N‐isopropylacrylamide (NIPAAM) as a thermoresponsive component, poly(L‐lactic acid) (PLLA) as a hydrolytically degradable and hydrophobic component, and dextran as an enzymatically degradable and hydrophilic component. The chemical structures of the hydrogels were characterized by an attenuated total reflection–Fourier transform infrared spectroscopy (ATR–FTIR) technique. The hydrogels were thermoresponsive, showing a lower critical solution temperature (LCST) at approximately 32 °C, and their swelling properties strongly depended on temperature changes, the balance of the hydrophilic/hydrophobic components, and the degradation of the PLLA component. The degradation of the hydrogels caused by hydrolytic cleavage of ester bonds in the PLLA component was faster at 25 °C below the LCST than at 37 °C above the LCST, determined by the ATR–FTIR technique. Due to their multifunctional properties, the designed hydrogels show great potential for biomedical applications, including drug delivery and tissue engineering. © 2004 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 42: 5054–5066, 2004