原料磨同步机励磁装置的改造

分析原料磨同步机所使用的KGLF型励磁装置在实际运行中存在的问题，介绍采用LZK-3型微机励磁装置的改造实践。     

武钢钢铁产品创新的战略思考

产品创新是企业生存和发展的基础。分析了武钢钢铁产品的市场需求，找出了武钢企业外部环境的机会与威胁和企业内部的优势与劣势，提出了产品创新的战略措施。     

聚丙烯酸酯防水乳液的研究进展

综述了聚丙烯酸酯防水乳液的理论研究进展，重点评述了组合功能单体、优选乳化体系和进行粒子设计三方面的改性手段。     

建立实施职业健康安全管理体系迎接入世挑战

建立和实施职业健康安全管理体系 (OHSMS) ,改善职工健康状况 ,改善劳动条件已成为刻不容缓的任务。介绍了柳钢职业健康安全管理体系的建立和实施情况 ,并提出了建立文化OHSMS和QMS整合型管理体系的设想及建立整合型管理体系应注意的问题。     

Transient Current Behaviour for Iron in 3.5%NaCl and 3.5%NaCl+ 1%NaNO_2 Solutions during Corrosion Fatigue

The transient current behaviour for Iron in 3.5%NaCl and 3.5%NaCl +1%NaNO2 solutions during corrosion fatigue (CF) process has been investigated at different given strain amplitudes and strain rates. The results show that elastic strain has little contribution to material dissolution. The elastic tension strain results in the decrease in the transient current, while the elastic compression strain increases the transient current. Compared to the elastic deformation, plastic deformation affects material dissolution evidently For iron in 3.5%NaCl solution, the strain amplitude plays a dominant role in the dissolution process accelerated by the plastic strain, while in 3.5%NaCl+1%NaNO2 solution, both the strain amplitude and strain rate play an important role in this process. In this paper, the effect of the elastic deformation on the material dissolution and the relation between the tension and compression current peak values under the plastic cycle deformation are discussed     

水轮机调速器与电网负荷频率控制

在现代电力系统中，水轮机调速器已成为水轮机控制系统的控制核心。文中叙述了水轮机调速器与电网负荷频率控制之间的关系，分析了调速器在电网一次调频、二次调频中的作用、静态特性和动态特性;通过建模、仿真及现场试验，提出了机组并联于大电网工况下的调速器PID参数整定范围和应有的机组功率控制模式。     

基于Web的选课支持系统

为了在选课之前给予学生充分的信息支持,使选课更有针对性和透明性,建设基于Web的选课支持系统是一项有意义的工作.提出了系统的三层体系结构及系统构成,分析了各子系统的功能,给出系统实现的关键技术,运行实践表明,该系统具有很好的信息支持效果.     

超导／半导兼容材料的制作及性能分析

介绍了几种结构合理的超导／半导兼容材料的制作技术及其测试结果，重点讨论了超导体（ＹＢＣＯ）与半导体（Ｓｉ，ＣａＡｓ）间缓冲层的选取，并对这几种复合材料的性能作了较详细的分析。     

基于EPICENTRE的海洋钻探数据库构建方法研究

随着海洋在经济发展中的地位日益突出,海洋地质调查越来越重要,如何合理地管理使用海洋地质调查数据成为研究热点.文中以海洋钻探为例,采用面向对象的技术方法,提出了基于EPICENTRE数据模型的海洋钻探数据库构建方法,实现了海洋钻探业务与EPICENTRE数据模型的关联.该方法得到的海洋钻探数据库是面向业务的,与传统的关系数据库相比具有良好的可扩展性,稳定性以及关联性等优点.文中重点对业务模型与逻辑模型的关联技术进行了介绍.     

Binary particle swarm optimization with multiple evolutionary strategies

This paper introduces a novel variation of binary particle swarm optimization(BPSO) algorithm and a further extension to improve its performance.Firstly,mimicking the behaviors of some creatures group,multiple evolutionary strategies BPSO(MBPSO) is introduced which takes different evolutionary strategies for various particles according to their performances.Then,on the basis of MBPSO,a new strategy is discussed to improve the performance of the MBPSO(M2BPSO) which adopts the concept of the mutation operator aiming to overcome the premature convergence and slow convergent speed during the later stages of the optimization.The proposed two algorithms are tested on seven benchmark functions and their results are compared with those obtained by other methods.Experimental results show that our methods outperform the other algorithms.