HIGH-PURITY WATER PRODUCTION BY RO/EDI SYSTEM

Ｅｌｅｃｔｒｏｄｅｉｏｎｉｚａｔｉｏｎ(ＥＤＩ) ,ａｌｓｏｋｎｏｗｎａｓｃｏｎ ｔｉｎｕｏｕｓｄｅｉｏｎｉｚａｔｉｏｎ(ＣＤＩ)ａｎｄ ｐａｃｋｅｄ -ｃｅｌｌｅｌｅｃｔｒｏ ｄｉａｌｙｓｉｓ ,ｉｓａｎｏｖｅｌｈｙｂｒｉｄｓｅｐａｒａｔｉｏｎｐｒｏｃｅｓｓｃｏｍｂｉｎ ｉｎｇｉｏｎ -ｅｘｃｈａｎｇｅｒｅｓｉｎｗｉｔｈｉｏｎ -ｅｘｃｈａｎｇｅｍｅｍ ｂｒａｎｅｉｎｏｎｅｕｎｉｔ .ＴｈｅＥＤＩｐｒｏｃｅｓｓｗａｓｄｉｓｃｏｖｅｒｅｄｉｎｔｈｅ 1950’ｓ[1,2 ] ｉｎｌａｂｏｒａｔｏｒｙ ,ｔｈｅｆｉｒｓｔｃｏｍｍｅ…     

Selective and Reversible Sorption of Target Solutes Through Polymeric Ligand Exchange

ＳｅｌｅｃｔｉｖｅａｎｄＲｅｖｅｒｓｉｂｌｅＳｏｒｐｔｉｏｎｏｆＴａｒｇｅｔＳｏｌｕｔｅｓＴｈｒｏｕｇｈＰｏｌｙｍｅｒｉｃＬｉｇａｎｄＥｘｃｈａｎｇｅＡｒｕｐＫ，Ｓｅｎｇｕｐｔａ（ＰｒｏｆｅｓｓｏｒｏｆＥｎｖｉｒｏｎｍｅｎｔａｌＥｎｇｉｎｅｅｒｉｎｇ...     

美国《剑桥科学文摘》材料信息系统2001年收录中国期刊名单

美国《剑桥科学文摘》是国际上新近发展起来的、著名的大型综合性检索系统。其中的材料信息系统 (ＣａｒｍｂｒｉｇｅＳｃｉｅｎｔｉｆｉｃＡｂｓｔｒａｃｔｓ ＭａｔｅｒｉａｌＩｎｆｏｒｍａｔｉｏｎ ,简称ＣＳＡ ＭＩ)下属 5个数据库 :ＭＥＴＡＤＥＸ ＭｅｔａｌｓＡｂｓｔｒａｃｔｓ,简称ＭＤＸ ;ＥｎｇｉｎｅｅｒｉｎｇＭａｔｅｒｉａｌｓＡｂｓｔｒａｃｔｓ,简称ＥＭＡ ;ＣｅｒａｍｉｃｓＡｂｓｔｒａｃｔｓ;ＣｏｒｒｏｓｉｏｎＡｂｓｔｒａｃｔｓ;ＡｌｕｍｉｎｉｕｍＩｎｄｕｓｔｒｙＡｂｓｔｒａｃｔｓ。近年来 ,我国的科技期刊在学…     

《Polyester Industry》total contents of 2002

ＰＥＴｐｏｌｙｃｏｎｄｅｎｓａｔｉｏｎｐｒｏｃｅｓｓｉｎｄｉｓｃ ｒｏｔａｔｉｎｇｒｅａｃｔｏｒＺＨＡＯＬｉｎｇ ,ＷＡＮＧＬｉａｎｇ ｓｈｅｎｇ ,ＺＨＵＺｈｏｎｇ ｎａｎ ,ｅｔａｌ(1 1)…………………………………………ＴｈｅａｐｐｌｉｃａｔｉｏｎｏｆｏｒｔｈｏｇｏｎａｌｔｅｓｔｍｅｔｈｏｄｏｎｐａｒｔｉｃｌｅｓｉｚｅｃｏｎｔｒｏｌｏｆＰＴＡＬＵＪｉｎｇ ｗｅｉ,ＭＵＨｅｎｇ ｊｉｎｇ ,ＧＵＹｏｎｇ ,ｅｔａｌ(1 6)…………………………………ＵｎｉｔｃｏｎｓｕｍｐｔｉｏｎｏｆＰＴＡａｎｄＥＧｉｎＰＥＴｐｒｏ…     

聚氨酯有机硅医用材料用于人工心脏

英国医疗装置生产商Ａｏｒｔｅｃｈ国际公司收购了澳大利亚ＥｌａｓｔｏｍｅｄｉｃＰｔｙ公司及其聚氨酯生物材料ＥｌａｓｔＥｏｎ的专利生产技术。Ａｏｒｔｅｃｈ公司原在Ｅｌａｓｔｏｍｅｄｉｃ公司内拥有33%的股份。聚氨酯材料将用于Ａｏｒｔｅｃｈ公司新型人工心脏阀门,并探索它用于一系列植入人体装置的可能性。Ｅｌａｓｔｏｍｅｄｉｃ在过去12年内开发了ＥｌａｓｔＥｏｎ材料,据称该材料把聚氨酯与高含量的有机硅结合起来,具有耐久性、柔韧性、血液相容性及在人体内的惰性。最近两年Ｅｌａｓｔｏｍｅｄｉｃ与Ａｏｒｔｅｃｈ公司联合开…     

Index To Vol22(2002)

·ＲＥＶＩＥＷ·ＡＲｅｓｅａｒｃｈｏｎｔｈｅＣｏｎｔｒｏｌｏｆＰｈｏｓｐｈｏｒｏｕｓＣｏｎｔｅｎｔｉｎＥｌｅｃｔｒｏ ｌｅｓｓＮｉ ＰＣｏａｔｉｎｇａｎｄｔｈｅＥｆｆｅｃｔｏｎｔｈｅＰｅｒｆｏｒｍａｎｃｅｓｏｆｔｈｅＣｏａｔｉｎｇ ＧＡＯＪｉａ ｑｉａｎｇ ,　ＨＵＷｅｎ ｂｉｎ( 1)∶ 1……………ＣｏｒｒｏｓｉｏｎＢｅｈａｖｉｏｒａｎｄＡｎｏｄｉｚａｔｉｏｎｏｆＭａｇｎｅｓｉｕｍａｎｄＩｔｓＡｌ ｌｏｙｓ ＪＩＡＯＳｈｕ ｑｉａｎｇ ,ＫＵＡＮＧＹａ ｆｅｉ,ｅｔａｌ.( 3 )∶ 1………ＰｒｏｇｒｅｓｓｉｎＰｌａ…     

铝合金化学镀镍工艺

铝合金化学镀镍工艺郭志刚（襄樊市建昌机器厂表面处理分厂，４４１００２）ＥＬＥＣＴＲＯＬＥＳＳＮＩＣＫＥＬＯＮＡＬＵＭＩＮＩＵＭＡＬＬＯＹ￥Ａｂｓｔｒａｃｔ：Ｎｉ－Ｐｐｌａｔｉｎｇｗｉｔｈｇｏｏｄｃｏｒｒｏｓｉｏｎ－ｒｅｓｉｓｔａｎｃｅｉｓｏｂｔａｉｎ...     

家用电器用绝缘搪瓷釉研究

家用电器用绝缘搪瓷釉研究蒋伟忠（轻工业部玻璃搪瓷工业科学研究所２０００５２）ＡｎＩｎｖｅｓｔｉｇａｔｉｏｎｏｎＩｎｓｕｌａｔｉｏｎＥｎａｍｅｌｆｏｒＥｌｅｃｔｒｉｃＡｐｐｌｉａｎｃｅ￥ＪｉａｎｇＷｅｉｚｈｏｎｇ（ＴｈｅＧｌａｓｓａｎｄＥｎａｍｅｌＲｅ...     

英语翻译技巧（13）

英语翻译技巧（１３）涂学忠（化工部北京橡胶工业研究设计院１０００３９）２．６ＣＯＮＶＥＲＳＩＯＮＯＦＭＡＳＴＥＲＢＡＴＣＨＥＳＭａｓｔｅｒｂａｔｃｈｅｓＣａｎｂｅｃｏｎｖｅｒｔｅｄｔｏｃｏｍｐｏｔｌｎｄｓｂｙｔｈｅａｄｄｉｔｉｏｎｏｆｃｕｒａｔｌｖｅ...     

英语翻译技巧（22）

英语翻译技巧（２２）涂学忠（化工部北京橡胶工业研究设计院１０００３９）４．２ＣＡＬＥＮＤＥＲＩＮＧＴＥＣＨＮＯＬＯＧＹＲｕｂｂｅｒｃｏｍｐｏｕｎｄｓｂｅｈａｖｅａｓｖｉｓｃｏｕｓｎｏｎ－Ｎｅｗｔｏｎｉａｎｌｉｑｕｉｄｓ．Ｉｆａｕｎｉｆｏｒｍｇａｕｇｅ...     

乙烯酮(双乙烯酮)下游产品废水的治理技术

乙烯酮(双乙烯酮)是十分重要的化工中间体,其下游产品较多。江苏某化工厂开发生产乙烯酮(双乙烯酮)下游产品三十多个,年生产规模三万多吨,是国内以乙烯酮(双乙烯酮)为中间体生产精细化学品的综合骨干企业。针对乙烯酮(双乙烯酮)下游产品废水特点,该厂结合企业实际,开展了产品优化,结构调整,清洁生产,资源循环利用,节水降耗等工作,从源头削减了污染物的生产。同时投资二千多万元新建预处理装置三套,6000m3/d废水生化处理装置一套,使全厂乙烯酮(双乙烯酮)下游产品的废水得到了有效的治理。     

邢钢套筒窑换热器内漏生产实践

介绍了套筒窑换热器的工作原理、作用及邢钢套筒窑换热器内漏的判断依据,对套筒窑换热器内漏的原因进行了简要的分析,对内漏前后的主要参数进行了对比,同时结合实际生产情况,制定了行之有效的控制措施,收到了良好的效果。     

Effect of degree of deacetylation of chitosan on the kinetics of ultrasonic degradation of chitosan

The objective of the study was to explore the effect of the degree of deacetylation (DD) of the chitosan used on the degradation rate and rate constant during ultrasonic degradation. Chitin was extracted from red shrimp process waste. Four different DD chitosans were prepared from chitin by alkali deacetylation. Those chitosans were degraded by ultrasonic radiation to different molecular weights. Changes of the molecular weight were determined by light scattering, and data of molecular weight changes were used to calculate the degradation rate and rate constant. The results were as follows: The molecular weight of chitosans decreased with an increasing ultrasonication time. The curves of the molecular weight versus the ultrasonication time were broken at 1‐h treatment. The degradation rate and rate constant of sonolysis decreased with an increasing ultrasonication time. This may be because the chances of being attacked by the cavitation energy increased with an increasing molecular weight species and may be because smaller molecular weight species have shorter relaxation times and, thus, can alleviate the sonication stress easier. However, the degradation rate and rate constant of sonolysis increased with an increasing DD of the chitosan used. This may be because the flexibilitier molecules of higher DD chitosans are more susceptible to the shear force of elongation flow generated by the cavitation field or due to the bond energy difference of acetamido and β‐1,4‐glucoside linkage or hydrogen bonds. Breakage of the β‐1,4‐glucoside linkage will result in lower molecular weight and an increasing reaction rate and rate constant. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 3526–3531, 2003     

水泥水化热测定方法综述

水泥水化热是中、低热水泥和核电工程用水泥的一项关键的技术指标。全球范围内测定水泥水化热的方法有溶解法、直接法/半绝热法、等温传导量热法三种。本文总结了中、美、欧相关方法标准,对其测试原理、仪器设备、试验过程等方面进行了比对,并对其在领域的应用做了简单的概括。     

我国聚丙烯工业国际竞争力分析

应用管理学和市场营销学的基本原理和方法,深入分析我国聚丙烯工业的内部和外部环境、市场状况以及加入WTO后所面临的机遇与挑战.在此基础上,应用SWTO(态势分析法),确认出主要的优势和劣势、机会和威胁,对我国聚丙烯工业的国际竞争力进行结构化的综合分析.     

塔设备改造选型的分析

就当前扩产增容中塔设备设计和改造时板式塔和填料塔的选型问题加以分析。在评述目前国内常用的几种塔板和新型填料之后，着重介绍一种新型塔板（导向梯形浮阀塔板）和一种新型填料（波环填料——乾隆帕克）。     

农药分子半抗原合成的研究进展

农药分子半抗原的合成直接影响后期制备抗体的质量,对于建立农药分子特异、灵敏的免疫分析方法具有关键性作用。综述了国内外农药人工抗原合成过程中的农药分子半抗原的设计原则、合成方法及影响因素等方面的研究进展。     

气化给煤系统故障分析

气化给煤装置自投运以来,出现了气化煤仓堵煤、称重给煤机输送皮带因跑偏而损伤以及清扫装置故障频繁等问题,多次造成气化系统减负荷运行。通过对出现的各种问题进行分析,找到了产生这些问题的原因,并有针对性地采用配煤和改进清扫链等措施,使出现的问题得到了极大的改善。     

A Review of Contemporary Views of Theories of Adhesion

The once distinct and independent theories of adhesion have been losing their isolation and converging. Ideas of the effects of surface roughness, once dismissed as irrelevant except in the case of textiles, have been revised; albeit on a smaller scale as details of surfaces have been revealed by sophisticated techniques. Electrostatic interactions across an interface have been more deeply explored and their significance recognised and expounded. Diffusion of groupings and chain segments within a polymer have been related to the possibilities of interaction with a variety of surfaces. Perhaps most important, theories of adsorption have been extended in depth. The precise nature of the molecular interactions have been recognised and quantified. In doing this the contribution of diffusion and elastoplastic phenomena have been integrated. These developments are collated and analysed to present the present understanding of the concepts.     

平板硫化机横梁受热变形及热板中高度的应用

介绍了平板硫化机热板中高度在硫化排气过程中的作用及其实现途径和评价方法;提出了设置热板中高度时应遵守的＂刚性横梁、柔性热板＂概念和＂最短路径、最小排气阻力＂原则;探讨了横梁热变形对热板中高度的影响。结果表明,参考横梁热变形设置的热板中高度有助于解决平板硫化机在复杂状态下硫化制品时的表面排气问题。