Studies of Several Systems with Air Electrode Electro-Synthesizing H2O2 on the Spot for Degrading Aniline in Aqueous

A gas diffusion electrode (air electrode) with a high current efficiency of electro-synthesizing H2O2 using O2 in air was prepared. The several systems with air electrode as cathode of electro-synthesizing H2O2 on the reaction spot for degrading aniline in aqueous--electro-Fenton system, photo-excitation electro-H2O2 system and photo-electro-Fenton system, were developed. The rates of decomposition of H2O2 and mineralization of aniline were experimentally measured respectively under different conditions, and the results indicated there has an excellent parallel relation between decomposition rate of H2O2 and mineralization rate of aniline. Especially, photo-electro-Fenton system, where H2O2 is decomposed the fastest, is the best system of oxidizing and degrading organic toxicants. Compared photo-electro-Fenton system with photo-Fenton system, important role is revealed in the interface of air electrode. In this paper, the mineralization mechanism of aniline in the photo-electro-Fenton system was also discussed.     

Nonsynchronous Trading Model and Return Analysis

Nonsynchronous trading is one of the hot issues in financial high-frequency data processing. This paper extends the nonsynchronous trading model studied in [1] and [2] for the financial security, and considers the moment functions of the observable return series for the extended model. At last. the estimators of parameters are obtained.     

老年痴呆患者的EEG信息熵比较分析

运用非线性动力学方法比较分析了老年痴呆(AD)患者与同龄正常人的脑电(EEG)信息熵特征，初步表明AD患者头皮各导联处EEG信号的信息熵均显著低于同龄正常人的相应值，下降的相对幅值达22％以上，研究结果提示，可考虑试用信息熵作为AD临床诊断的特异性指标，信息熵在生物医学工程，尤其在临床医学工程中具有潜在的重要的应用价值，值得进一步深入研究。     

南京电子工业发展战略研究

南京电子工业发展战略研究范汾涤，沐志成，徐士钰，许金龙，张文炽一、南京电子工业发展现状南京素以“电子城”著称。作为南京的一大优势，其生产规模、产品水平、科技开发能力均在全国居领先地位。以１９９２年为例，在全国３７个中心城市（不包括３个直辖市）中，南京...