Green Tax Reforms and Computational Economics A Do-it-yourself Approach

The double or even triple dividend hypothesis of green tax reforms has beena major issue of dispute in both the scientific community and the politicalarena during the last decade. Theoretical analysis has provided a number ofimportant qualitative insights to the debate but lacks of actual policyrelevance due to very restrictive assumptions. Applied research that takes thestep from stylized analytical to complex numerical models usually comes as ablackbox to non-expert modelers. This paper aims at bridging the gap betweenstylized theoretical work and numerical analysis. We develop a flexible,interactive simulation model which is accessible underhttp://brw.zew.de. Users can specify their own green tax reforms andevaluate the induced economic and environmental effects. Based on illustrativesimulations, we demonstrate the usefulness of our do-it-yourself approach fora better understanding of the double (triple) dividend hypothesis.     

多媒体技术在化学教学中应用的探讨

文中介绍了多媒体教学的发展及多媒体课件、文献资料和仿真实验等教学的基本形式;分析了多媒体教学所具有的信息量丰富、表现力多样化、交互性较强和内容更新快的特点;讨论了多媒体教学可提高教学效率、提高学生理解能力、减轻教师负担和因材施教的优越性;提出了在教学中应用多媒体技术时,应以学生为主体,教师为主导,为学习者提供认知帮助是关键而有效策略的教学思想。     

一种汉字书写模拟练习软件的设计

本文介绍了利用微型计界机现有输入设备书写汉字的一种学习软件之设计, 它接近真实的汉字书写练习, 有一定的应用价值。     

ALGORITHMIC SYNTHESIS OF GENERAL NON-SHARP SIMPLE DISTILLATION COLUMN SEQUENCES

An algorithmic approach was used to select recoveries for non-sharp sequence designs. Simple distillation columns were employed. The non-key component distribution was modeled using the Fenske equation. The combination of producing impure products and allowing non-key component distribution, results in a large search space. With this large search space size and software limitations, five problems were solved (see summary table in the Design Examples sub-section). The optimal non-key component distribution was found to be significant but not necessarily maximal. Parallel processing was selected as optimal in contrast to the more traditional sequential processing.     

高校教师在多媒体教学中的角色思考

多媒体教学已经成为高校重要的教学组织形式。目前多媒体教学中存在的诸多问题源于多媒体教学中的认识误区。解决这些问题的关键在于明确教师在多媒体教学中的主导地位。教师在高校多媒体教学中应发挥课程开发和设计者、教学资源和教学信息整合者、教学活动组织者、学生学习合作者、教学研究实践者等五个方面的作用。     

高职院校实施素质教育的路径

高职院校作为培养高级应用型专门技术人才的基地和摇篮．肩负着重大的历史使命。在新形势下．高职院校要树立以人为本的教育观念、注重学习实践创新能力培养、坚守德才兼备的根本性原则。如此．方能切实地实施素质教育。     

矢量图形智能判断技术的研究与应用

研究矢量图形识别是建立工程制图自动阅卷与计算机辅助教学系统的基础。由于组成二维矢量图形图元类型的多样化及图形整体位置状态的不确定性，增加了矢量图形的识别与判断难度。结合开发的《三视图智能解答》系统，研究其智能识别与判断技术。系统中引入三视图导航技术，解决了图形整体定位与识别问题。实现了对矢量图形图元素信息的分类和提取，能够对所提取的的信息与标准答案进行智能判断与评定。该方法已在AutoCAD2000环境下使用AutoLISP语言编程实现。     

科技写作课教学规范化的探讨

对科技写作课教学现状进行了分析，对教学规范化的目的、意义、实施步骤与应采取的措施进行了探讨。     

Simultaneous mass and heat transfer under mixed convection along a vertical cone

Steady laminar binary mixed convection flow along a vertical circular cone under the combined buoyancy effects of thermal and species diffusion is studied analytically. The analysis is confined to mass diffusion processes with low concentration levels. In the analysis the surface of the cone is assumed to be at a uniform temperature and uniform concentration. Numerical results for the local Sherwood number, local Nusselt number and local friction factor are presented. Representative temperature, concentration and velocity profiles are also shown. The analysis covers the diffusion of common gases and vapours into air. Considerations are given to the situations where the buoyancy forces assist and oppose the forced convection flow for various possible combinations of the thermal and species diffusion processes.     

数据挖掘课程案例教学研究

数据挖掘是一门交叉性学科,是情报学专业的重要课程之一。它主要介绍数据挖掘的基本概念、原理、方法和技术,涉及多个学科和算法因而教学难度较大。由于数据挖掘学科交叉性强涉及的挖掘方法和相关算法多并繁杂,造成学生对数据挖掘的整体工作流程缺乏了解形成“不识庐山真面目只缘身在此山中”现象。文中以时间序列服装销售额预测挖掘项目为教学案例让学生首先掌握数据挖掘的标准流程,重点讲解用到的相关挖掘方法和算法及其在实际挖掘环境中的开发方法,达到“会当I临绝顶一览众山小”的教学目标。通过教学实践教学效果良好。