陶瓷中碱金属和碱土金属氧化物对三氧化二铁分解的影响

实验研究了陶瓷原料中的碱金属、碱土金属、氧化铝对三氧化二铁分解的起始温度和分解量的影响,并采用TO—DTA和XPd3等方法分析了这些成分与三氧化二铁分解之间的机理。     

欧盟REACH法规对我国化学工业的影响

对我国与欧盟进出口的贸易情况进行了介绍,指出欧盟REACH法规的生效和运行将对我国化学工业产生以下影响:①给我国化工产品及相关产品的出口造成障碍;②使我国从欧盟进口产品成本增加;③将打破目前国际化学品贸易平衡的局面;④消弱我国出口产品的竞争力;⑤具有影响人体健康及污染环境的产品有可能向我国转移.提出了一些对策和建议.     

2011～2012年世界塑料工业进展

收集了2011年7月～2012年6月世界塑料工业的相关资料,介绍了2011～2012年世界塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况。按通用热塑性树脂(聚乙烯、聚丙烯、聚氯乙烯、聚苯乙烯、ABS树脂),工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚),特种工程塑料(聚苯硫醚、液晶聚合物、聚醚醚酮),通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍。     

球磨机的控制与节电

球磨机是广泛用于水泥、电力等工业中耗电量较大的设备,如何对其进行自动控制,使之保持在最佳状态下运行,是多年来的一项技术难题.本文提供的测量装料量(料位)并加以控制的方法,经实践证明足行之有效的.     

创纪录的2007年:瓦克业绩继续增长

瓦克化学股份有限公司在2007业务年度创造了销售额和利润新记录.尽管原料和能源成本大幅上涨以及坚挺的欧元所造成的汇率影响,这家总部设在德国慕尼黑市的化学集团实现了利息、税、折旧、摊销前利润(EBITDA)10.02(上年:7.86)亿欧元,比上年增加27%.     

谱写水性涂料新篇章 引领建材领域新时尚——访上海涂料有限公司技术中心任炽伟

上海是中国涂料工业的发源地,上海涂料有限公司是上海涂料工业最具代表的一个大型企业。从1915年诞生的中国第一家涂料工厂——"上海开林造漆厂(原名:开林颜料油漆厂)"起,上海涂料有限公司经历了九十多个春秋,一直致力于涂料前沿技术的研究和开发,至今已发展成为规模一流、品种齐全、质量上乘、服务周到和潜力无限的现代化涂料集团,2006年公司销售额超过35亿元。在当前国内倡导节能环保理念,推广水性涂料的大环境下,作为全国涂料制造业效益十佳企业的上海涂料有限公司,旗下技术中心更是意识超前地研发出了一种既具有高品质乳胶漆的优点,又具有大理石和花岗石等材质装饰效果高雅大气、施工方便的全水性多彩外墙涂料,并已实现规模化生产。为使业界对该公司及其前沿新品有一个深入全面的了解,本刊特对其技术中心进行了专访。     

巧手丹青,画中神品——读江振生先生"三顾茅庐"瓷画

历代的画家都把"三顾茅庐"当作一种流行的绘画题材,景德镇高级工艺美术师、艺术瓷厂美研所副所长江振生先生独具匠心,精心制作的瓷板"三顾茅庐"再现了这一历史题材故事,整幅画面作者用传统粉彩工笔加写实的手法画出了三国时期刘备三赴卧龙岗求贤诸葛孔明的故事,画面景物宏伟壮观,色彩浓丽鲜明,雪景人物相影相彰,给人以清新的视觉效果,巧印了罗贯中原著:"柴门半掩闭茅庐,中有高人卧不起.""一夜北风寒,万里彤云厚,长空雪乱飘,改尽江山旧."小桥、流水、庭院;古树、雪景、人物,好一幅诗景画意.     

前进中的上海器皿模具厂

1企业概况上海器皿模具厂创建于1927年,前身为黄发记机器厂,是全国第1家专业制造玻璃机械和玻璃模具的企业,原属上海轻工控股集团公司,2001年转制为股份合作制民营企业。现有员工85人,其中具有大专以上学历的21人,技术人员14人,具有中高级职称的11人。企业专业生产经营各类玻璃     

中国橡胶工业协会机头模具分会换届会议在揭阳召开

2008年3月20日,中国橡胶工业协会机头模具分会第七届会员代表大会在广东省揭阳市召开.根据中国橡胶工业协会的建议,会议一致推选广东巨轮模具股份有限公司为新一届理事长单位,总经理洪惠平任理事长.     

An integrated approach for machine-learning-based system identification of dynamical systems under control: application towards the model predictive control of a highly nonlinear reactor system

Advanced model-based control strategies,e.g.,model predictive control,can offer superior control of key process variables for multiple-input multiple-output systems.The quality of the system model is critical to controller performance and should adequately describe the process dynamics across its operating range while remaining amenable to fast optimization.This work articulates an integrated system identification procedure for deriving black-box nonlinear continuous-time multiple-input multiple-output system models for nonlinear model predictive control.To showcase this approach,five candidate models for polynomial and interaction features of both output and manipulated variables were trained on simulated data and integrated into a nonlinear model predictive controller for a highly nonlinear continuous stirred tank reactor system.This procedure successfully identified system models that enabled effective control in both servo and regulator problems across wider operating ranges.These controllers also had reasonable per-iteration times of ca.0.1 s.This demonstration of how such system models could be identified for nonlinear model predictive control without prior knowledge of system dynamics opens further possibilities for direct data-driven methodologies for model-based control which,in the face of process uncertainties or modelling limitations,allow rapid and stable control over wider operating ranges.     

乙苯,苯乙烯的生产及合成乙苯,苯乙烯催化剂的研究进展

苯乙烯是重要的石油化工原料。本文介绍了国内外苯乙烯生产的发展概况，合成乙苯，苯乙烯所用的催化剂种类，并就苯乙烯生产及催化剂的发展趋势提出了自己的观点。     

Synthesis and characterization of homopolymers and copolymers of various acrylates and acrylonitrile

Various homopolymers and copolymers of methyl acrylate, ethyl acrylate, butyl acrylate, and acrylonitrile in different feed ratios were synthesized. These were characterized by IR, ¹³C-NMR, DSC, DTA, and TGA. Spectroscopic characterization helped in differentiating copolymers of different mol ratios. Thermal analysis revealed different degradation patterns for homopolymers and copolymers. The temperature and energy changes associated with various phase transitions were dependent on the chemical composition of homo- and copolymers, as expected. © 1993 John Wiley & Sons, Inc.     

生物质气化及生物质与煤共气化技术的研发与应用

总结了生物质原料的特点及生物质单独气化的缺点;介绍了国内外生物质气化技术及生物质与煤共气化技术的研发与应用现状;分析了在此领域国内外的发展趋势与前景;概括了开展生物质与煤共气化技术研发的意义。     

Comparison of the Adhesion and Cohesion of Triblock and Random Copolymers of Styrene and Butadiene

A substantially greater detachment energy is required to strip a polyethylene tereph-thalate (Mylar) film from a styrene-butadiene-styrene (SBS) triblock copolymer compared to that for peeling from a random styrene-butadiene (SBR) copolymer. This is true even though the intrinsic interaction between the Mylar and each elastomer is expected to be similar because of their virtually identical chemical composition. It is proposed that this difference in peel strength (between the SBS and SBR) is a consequence of the much higher dissipative capacity of the former elastomer. Another manifestation of this is the higher cohesive tear strength of the SBS compared to the SBR. Extents of energy dissipation within each elastomer during detachment of the Mylar adherend are consistent with the hypothesis that the average maximum stress experience before detachment is some similar fraction of each elastomer's tensile strength.     

Electronic structures and reactivities of monometallic and bimetallic clusters of Au and Cu

The variation of the Au 4f binding energy of Au clusters with the cluster size has been established by measuring the binding energies of clusters whose size distributions were independently determined by HREM and STM. The binding energy increases significantly when the cluster size is less than 2 nm. Au-Cu bimetallic clusters of the composition Cu₃Au have been deposited for the first time on carbon substrates. The shifts in the core level binding energies of the bimetallic clusters show the effect of alloying in the case of large clusters, but show effects of both alloying and cluster size in the case of the small clusters. The interaction of CO with Cu₃Au clusters is stronger than with a bulk Cu metal. The interaction of CO with small Cu clusters also seems to be stronger than with bulk Cu or with large Cu clusters.     

钾盐资源及钾肥供需情况分析及预测

阐述了国内外钾盐资源及钾肥生产现状,对国内外钾盐的供需形势进行了分析及预测,从资源、原材料、国际市场三方面提出了解决我国钾盐短缺的措施。     

二甲基二烯丙基氯化铵和丙烯酰胺的合成及应用

用复合引发体系(过硫酸盐-偶氮类引发剂)和脂肪胺类氧化还原体系引发,在实验室获得了单体转化率≥98%,特性粘数高于13.6 dL/g的阳离子共聚物PDA,探讨了控制聚合物分子量的影响因素.     

责任和责任心的涵义与结构

责任是人应主动承担的角色义务和对其因过失所造成后果应承担的责罚.有两层涵义:一是义务;二是后果.责任心是个体自觉做好分内事务和履行道德义务的心理倾向,是个性心理品质成分中自我特征维度上的重要内容.责任心具有两个方面的涵义:一是角色分内职责;二是角色道德义务.责任心是一种通过责任认知、责任个性和责任适应的动态形式表现出来的静态品质,责任心是责任心过程结构与责任心关系结构相互制约、相互影响的统一体.     

医药和农药纳米剂型研究和应用

系统介绍了医药和农药纳米剂型研究进展和应用前景。医药微乳剂和纳米悬浮剂可显著改善药物的悬浮性和分散性,提高生物利用度。载药纳米微粒具有缓释功能,延长药物在体内的半衰期,并可实现药物的靶向定位给药。农药微乳剂具有增溶和渗透作用,提高农药的传递效率和使用安全性。农药纳米悬浮剂和载药纳米粒均可显著提高药效。纳米技术为医药和农药剂型的研究提供了新机遇,具有广阔的应用前景。