基于WebSphere的生产管理系统

将生产管理与信息技术结合起来,在分析功能需求的基础上,提出了该系统的组成及具体功能,详细说明了该系统的J2EE框架结构在WebSphere下实现的具体思路及关键技术.     

轻稀土—钇—茜素红S异多核配合物极谱吸附波

在0.075mol/L磺基水杨酸钠和pH7.9的三乙醇胺(2.2%)-盐酸缓冲溶液中,轻稀土和钇、茜紫红S形成的异多核配合物在单扫描极谱上,于-0.79V(vs.SCE)处产生一个灵敏的阴极导数峰,峰高与轻稀土浓度在2×10~(-8)～7×10~(-7)mol/L范围内呈线性关系.探讨了极谱波的性质和电极反应机理.在单扫描极谱上用单纯形法和连续变化法测定了该体系的吸附型体的组成比为La∶y∶ARS=1∶2∶7.用此法测定了土壤中轻稀土的含量。     

锆-钙-茜素红S异多核配合物共显色效应的研究及应用

报道了锆－钙－茜素红S异多核配合物的形成，共显色效应的光度特性及测定锆的最佳条件．建立了光度法测定痕量锆的新方法．其表观摩尔吸光系数为3．92×104L·mol－1·cm－1，比其二元配合物的摩尔吸光系数显著增加．Zr（Ⅳ）浓度在0～1．50mg／L范围内符合比耳定律．用本方法测定了矿石中的痕量锆，结果良好．     

Chemical analysis of the pheromone blends produced by males and females of the neotropical moth,Mocis megas (Guénée) (Lepidoptera,Noctuidae, Catocalinae)

Summary Pheromonal secretions produced by females and males of the noctuid moth,Mocis megas (Guénée) have been analyzed by gas chromatography and mass spectrometry (EI (electron impact) and CI (chemical ionization)). The female sex pheromone was a blend of (Z,Z,Z) 3,6,9 heneicosatriene (55%) and (Z,Z) 3,6-cis-9S, 10R-epoxyheneicosadiene (45%). Male secretion produced at the level of a prothoracic organ was a blend of two unsaturated major hydrocarbons: (Z,Z) 6,9 heneicosadiene, (64%) and (Z,Z,Z) 3,6,9 heneicosatriene (24%) and C₁₉, C₂₀ and C₂₂ homologues (total ratio 12%), as minor components. The trienic hydrocarbon was present in both sexes. The behavioral role of this male secretion has not yet been elucidated.     

Simulated experiment evidences of the corrosion and reform actions of H2S to carbonate reservoirs： an example of Feixianguan Formation, east Sichuan

The reservoir of Feixianguan Formation of the Lower Triassic in the Sichuan Basin is the deepest buried carbonate reservoir in China, with developed secondary corrosion holes, high quantities carbonate reservoir, maximum effective carbonate reservoir thickness. Also Feixianguan gas reservoir has the highest quantities of H2S. Research discovers that there are close relationships between the formation of reservoir and H2S. The mutual actions between acidity fluid and carbonate promoted the forming of secondary carbonate holes. Through the experiment of corrosion of the samples of Feixianguan carbonate reservoir in saturated aqueous solution of hydrogen sulfide, the porosity and permeability increased greatly, porosity increased 2% and permeability increased nearly two quantity degrees, also the density became light, which confirm the corrosion and reform actions of H2S to carbonate.     

美国虚拟参考咨询台(VRD)会议综述

简要介绍了美国VRD(虚拟咨询台)系统及其主要特点，并对其自1999年创建以来五届年会的召开情况进行了概括和总结，并着重介绍了各届会议的主要议题及论文交流情况。     

基于PIC单片机的气体泄漏报警器设计

以MQK气体传感器和PIC16F73单片机为核心,设计气体泄漏报警器.该报警器设计方法简单易行,使用效果良好,本文给出了气体泄漏报警器的总体设计原理,关键的硬件电路和软件程序设计.     

宽带HFC中16QAM窄带噪声抑制的研究

将输入噪声抽象为一种窄带干扰，从数字信号处理的角度对其采取非线性抑制措施，并把非线性的CDLMS，CDRLS和归一化FTF算法运用到了该干扰抑制器中，提高了信号处理的实时性。