炭黑填充导电丁腈橡胶研究

研究了用华光化工厂产导电炭黑填充丁腈橡胶的导电性规律。探讨了配方、加工工艺、混炼胶存放、胶料老化以及测试条件等诸多因素与导电性的关系。优选出了硬度７０左右的胶料，其体积电阻率为２．２２Ω·ｃｍ。     

金属离子影响过氧乙酸分解速度的探讨及对策

本文考察了部分金属离子对过氧乙酸分解速度的影响.结果发现一些金属离子(Cr3 、AL3 、Ni2 、Co2 )引起过氧乙酸快速分解,一些金属离子(Hg2 、Cu26、Zn2 、Pb26、Ag )引起过氧乙酸缓慢分解,还有一些金属离子(Mg2 、K )对过氧乙酸起稳定作用.本文探讨了金属离子对过氧乙酸分解的机理.有针对性地选择一些配位剂(8-羟基喹啉、邻二氮菲、酒石酸盐、草酸钠)作为过氧乙酸稳定剂,这些配位剂与金属离子形成稳定的配合物,从而把金属离子有效地隐蔽起来,增加过氧乙酸的稳定性.     

聚硅氧烷改性醇酸树脂的研究

采用共缩聚方法合成了聚硅氧烷改性的醇酸树脂;探讨了反应温度、催化剂和原料配比对缩合反应的影响,测试了改性树脂的部分性能。     

塑料加工应用情报检索体系的建立与应用

介绍了塑料加工应用情报检索体系的组成与功能.该体系拥有PE、PP、PS等5个专题文献数据库;开通了3个国际联机情报检索系统和4个国内联机情报检索系统.累计已检索课题310个,打印输出信息12000条.产生了较好的经济效益和社会效益.     

溶胶—凝胶法制备有机改性硅酸盐的研究进展

综述了有机改性硅酸盐的溶胶－凝胶合成路线，并简要介绍它们的结构、性能及应用     

若干无机盐对聚丙烯酰胺溶液粘度的影响

探讨了无机盐溶液中阴阳离子对聚丙烯酰胺(PAM)溶液粘度的影响,确定了影响PAM溶液粘度的主要因素是二价阳离子(如ca2 及Mg2 离子)。     

高温水采暖系统内部氧腐蚀

对阜康冶炼厂高温水采暖系统内部产生氧腐蚀的原因进行分析，采取相应的措施，收到良好的效果     

Theoretical analysis of the harmonic characteristics of modular multilevel converters

To understand the operation principle of the modular multilevel converter(MMC)deeply,it is necessary to study the harmonic characteristics of the MMC theoretically.Besides,the analytical harmonic formulas of the MMC are useful in designing the main circuit,reducing the losses and improving the waveform quality.Based on the average switching function and the Fourier series harmonic analysis,this paper deduces the analytical expressions for such electrical quantities as the arm voltage,the arm current,the capacitor voltage,the capacitor current and the circulating current of the MMC.Finally,a digital model of a 21-level MMC-HVDC system is realized in PSCAD/EMTDC.The results of the analytical expressions coincide with the simulation results,which verify the effectiveness and feasibility of the proposed analytical expressions.     

Optimising Reliability: Portfolio Modeling of Contract Types for Retail Water Providers

This paper considers the retail water provider’s purchasing decision of a portfolio of permanent contracts from wholesalers with multiple volatile water sources. We consider the reliability of two contract types: (1) fixed annual quantities, and (2) an inflow harvest function with storage. Our four-reservoir case in Sydney (Australia) has cross-correlated inflow data. To accommodate multi-reservoir cross-correlation we adapt Portfolio Theory from finance to lognormal reservoir inflows, re-framing traditional storage theory from the wholesaler’s optimal operating policy to the retailer’s optimal purchasing policy. We find that Reliability improves with access to a source pool (cf. fixed quantities from separate sources), demonstrating the ‘insurance effect’, and the portfolio that minimises lognormal variance also minimises harvest (and thus environmental impact). Reform direction in Australian (and other international) water markets is towards multi-provider vertical disintegration, which may reduce pool opportunities and negate the insurance effect. We consider diminishing reliability returns as reservoir harvesting increases, and conclude a retail portfolio of permanent contracts from reservoirs, plus short-term contracts from alternative sources (either independently or negatively cross-correlated) efficiently secures high reliability. The challenge in incomplete water markets remains in encouraging and sustaining supply diversification that may only be needed aperiodically during extreme droughts.     

论灌区水文生态禀赋及建设生态文明

运用新的水文生态的观点分析了灌区问题,将灌区水文系统、生态系统分为渠首引水系统、配水渠系、田间灌溉系统、井渠系统、排水系统、作物系统、土壤及水文地质系统等10个子系统。经过分析论证,灌区是一个典型的水文生态系统,从而揭示了灌区生态文明的实质和内涵,使生态文明灌区建设更具明确的目的和工作内容,为灌区的可持续发展提供了理论依据,也为其他水利工程的水文生态分析提供了参考。