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.     

小花山桃草的核型研究

小花山桃草的核型研究杨德奎，周俊英，秦月秋，邱军，李敏，史延昌柳叶菜科山桃草属的植物，全世界有１８种，原产北美，中国引种２种，一种是山桃草（ＧａｕｒａｌｉｎｄｈｅｉｍｅｒｉＥｎｇｅｌｍｅｔＧｒａｙ），作为花卉引种的栽培种，另一种是野生小花山桃草（Ｇａ...     

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.     

移源法及其新应用

用2b方程证明移源法，并得出它的推论；在此基础上，给出了移源法的新应用－－消去受控源。     

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...     

切莫忽视解热镇痛药的不良反应

发热和疼痛是某些疾病的症状表现，解热镇痛药就是针对这些症状起作用的，并不能从根本上治疗。由于解热镇痛药中多数是非处方药，人们可以不经过医生处方而直接从药店买来应用，因此滥用现象比较普遍。解热镇痛药的应用非常广泛，人们遇到头疼脑热，或是牙痛、关节疼、腰腿疼等，常常不经医生诊治就自己到药店买退烧药或止痛药，图得是个方便，但往往忽略了解热镇痛药的不良反应。     

石质山区油松抗旱造林技术

通过对石质山区油松抗旱造林技术的研究，总结出了苗木质量、苗木处理、造林时期、整地质量、栽植技术、抚育管理等6个主要的技术环节。     

关于“长阵方程AXB＋CYD＝E的通解”的注记

文[1]利用矩阵的加逆给出了矩阵方程AXB＋CYD＝E解的相容性，唯一性及通解，本文指出，文[1]的结果可利用矩阵的减号逆写得更一般些，而且纠正了文[1]的几处错误。