造气炉渣在水泥生产中的应用

生产实践表明,通过优化原材料的混合配方,改进工艺过程,利用氮肥工业的造气炉渣,替代部分石灰石原料,稳定生产32.5R普通硅酸盐水泥是可能的。     

Direct - Torque, Neuro - Fuzzy Control of Induction Motor

Fuzzy systems are currently being used in a wide field of industrial and scientific applications. Since the design and especially the optimization process of fuzzy systems can be very time consuming, it is convenient to have algorithms which construct and optimize them automatically. In order to improve the system stability and raise the response speed, a new control scheme, direct - torque neuro - fuzzy control for induction motor drive, was put forward. The design and tuning procedure have been described. Also, the improved stator flux estimation algorithm, which guarantees eccentric estimated flux has been proposed.     

英语单词记忆法初探

英语作为一门世界通用的国际语言,不仅有变化多端的语法,灵活多样的句式,更拥有烟波浩淼的词汇。对于英语学习者来说,记忆单词确实是一件费时费心的苦差事。以下是笔者在英语学习和教学中积累的几种单词记忆方法,以飨读者。     

WebQuest在高中英语教学中的实践和反思

WebQuest是一种以探究为导向的学习活动,由于其具有易于掌握的结构模型和清晰的课程开发流程,目前已被广泛地应用到中小学教学中。本文将其引入高中英语教学实践,以课程标准的要求和思路来设计、开发WebQuest的问题解决过程,取得了一定的教学效果。     

如何言之有"物"--分析哲学与后现代主义比较

弗雷格、罗素、早期维特根斯坦所提出的指称理论以及后期维特根斯坦的“生活形式” ,说明了分析哲学具有一种实在的、“物”的认识的基础 ,后现代主义则使语言与物的界限消解了。但从逻辑上看 ,这种基础也是后现代主义得以存在的基础和发展的动力 ,同时也是它所要超越的对象     

加强和改进大学生教育管理工作的若干探讨

为适应时代发展的要求 ,应把握“加强和改进高校学生教育管理工作”这一高校学生工作的主旋律 ,积极探讨新形势下搞好高校学生教育管理工作的对策     

Modeling of Normal Perforation of Reinforced Concrete Slabs by a Rigid Projectile

An analytical model on the normal perforation of reinforced concrete slabs is constructed. The effect of reinforcing bars is further hybridized in a general three-stage model consisting of initial cratering, tunnelling and shear plugging. Besides three dimensionless numbers, i. e. , the impact function /, the geometry function of projectile N and the dimensionless thickness of concrete target X, which are employed to predict the ballistic performance of perforation of concrete slabs, the reinforcement ratioρs of concrete and the tensile strength fs of reinforcing bars are considered as the other main factors influencing the perforation process. Simpler solutions of ballistic performances of normal perforation of reinforced concrete slabs are formulated. Theoretical predictions agree well with individual published experimental data.     

论修辞接受的社会性

接受修辞是一门年轻的课程。修辞表达和修辞接受构成修辞活动的两极,二者统一在同一的言语交际过程中,又各有不同的角色分工。本文试图从修辞接受的社会心理、社会交际、接受主体三方面进行论述,旨在说明修辞接受所具的社会性。     

纳米微粒的制备方法及其进展

综述目前纳米微粒的各种制备方法 ,比较和评述了每种方法的特点 ,以期这一新材料能得以更为深入地研究和更广泛地应用     

人权思想的哲学基础及其历史解读

人权思想发展的每个阶段都有相应的哲学基础。人权思想萌芽于古代的自然正义和平等观念,形成于艺复兴时期的理性主义和个人主义,发展于近代的自然主义和功利主义,繁荣于当代的社会主义和人本主义。