凸集上的非线性算子的固有元及固有值

本文利用拓扑度研究集上的具边界条件的非线性集压缩算子的不动点。固有元及固有值的存在性,推广了[3,5,6]中的相应结论,部分回答了[4]的一个猜测。     

弱内向型非锥映象的不动点及固有元

本文给出了满足弱内向型边界条件的非锥多值映象的正固有元及正不动点存在的一些充分条件。     

β－氨基－α－羟乙基二茂铁及其过渡金属配合物的合成与表征

用β－氨基－α－羟已基二茂铁与二价钴、镍、铜、锌、镉和汞的氯化物及醋酸铜在乙醇－水中反应，合成了七种新的配合物．探索出了适宜的反应条件，经元素分析，确定了新配合物的组成为：Ｌ２ＭＸ２·ｎＨ２Ｏ（Ｌ＝Ｆｃ─ＣＨＣＨ２ＮＨ２；Ｍ＝Ｃｏ２＋、Ｎｉ２＋、Ｃｕ２＋、Ｚｎ２＋、Ｃｄ２＋、Ｈｇ２＋，ｘ＝Ｃｌ－，ＣＨ３ＣＯＯ－；ｎ＝０，２，４）．通过红外光谱和核磁共振氢谱．对这些配合物的结构进行了表征．     

Effect of Ag addition on the thermal stability and glass-forming ability of Zr<Subscript>35</Subscript>Ti<Subscript>30</Subscript>Cu<Subscript>7.5</Subscript>Be<Subscript>27.5</Subscript> bulk metallic glass

The thermal stability and glass forming ability (GFA) of Zr35-xTi30Cu7.5Be27.5Agx (x = 0-10) alloys were studied by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and ultrasonic techniques. We found that the addition of 1 at.% Ag can considerably enhance the GFA as indicated by an increase in the critical glass dimension from 15 mm in the Zr35Ti30Cu7.5Be27.5 alloy to 20 mm in the Zr34Ti30Cu7.5Be27.5Ag1 alloy. However, with the addition of more Ag the supercooled liquid region (△Tx) and y parameter (defined as Tx/(Tg+Tl)) drastically decreased from 155 K and 0.436 to 76 K and 0.363, respectively, resulting in a decrease in the GFA. Additionally, the elastic constant (the ratio of shear modulus to bulk modulus or Poisson’s ratio) was also used as a gauge to evaluate the GFA in Zr35-xTi30Cu7.5Be27.5Agx alloys.     

A software reliability growth model for component-based software incorporating debugging delay and imperfect debugging

In view of the problems and the weaknesses of component-based software(CBS) reliability modeling and analysis,and a lack of consideration for real debugging circumstance of integration testing,a CBS reliability process analysis model is proposed incorporating debugging time delay,imperfect debugging and limited debugging resources.CBS integration testing is formulated as a multiqueue multichannel and finite server queuing model(MMFSQM) to illustrate fault detection process(FDP) and fault correction process(FCP).A unified FCP is sketched,given debugging delay,the diversities of faults processing and the limitations of debugging resources.Furthermore,the impacts of imperfect debugging on fault detection and correction are explicitly elaborated,and the expressions of the cumulative number of fault detected and corrected are illustrated.Finally,the results of numerical experiments verify the effectiveness and rationality of the proposed model.By comparison,the proposed model is superior to the other models.The proposed model is closer to real CBS testing process and facilitates software engineer's quantitatively analyzing,measuring and predicting CBS reliability.     

柱前衍生氨基酸的色谱分析

对氨基酸的反相高效液相色谱的双荧光检测了作了介绍。采用邻苯二甲醛／巯基乙醇与９－芴基氯甲酸酯柱前衍生物,同时采用两台串联的荧光检测器对伯氨基酸和仲氨基酸进行分析;利用高半胱氨酸、高丝氨酸、正缬氨酸（ＮＶＡＬ）,硫代脯氨酸（ＴＰＲＯ）四种内标消降了系统误差。同时,由样品各组分保留时间重现性的相对误差及标准氨基酸衍生物的回收率实验来确定该方法的准确性。结果表明：此检测氨基酸方法灵敏度高,检出高且重现性     

江油地区含硫酸盐岩浅层地下水中CaCO3析出的化学热力学机理

含硫酸盐岩浅层地下水一般存在于该矿物的溶孔与裂缝之中，同时它的表面又有大量的ＣａＣＯ３ 析出．本文仅从化学热力学的角度解释这一特征地貌的形成     

一种新的城市电力网优化规划模型

提出了一种基于伪动态网络流的城网优化算法，建立了相应的网络模型，采用了修正费用伪动态网络流算法。应用该方法能够较好地解决城网网多电源点、多负荷点的网络规划问题，实例计算表明该方法是有效可行的。     

计算机研究材料科学的理论与实践

材料科学既是计算机应用的一个重要领域，也是计算机发展的工业基础学科，结合计算机在材料科学领域的应用，比较了从微观结构到物理性质、从数值分析到工艺过程模拟、从传统计算到智能处理等方面的计算机实验方法，探讨了计算机研究材料科学的理论和实践的发展趋势。