图着色的混合遗传算法研究

研究了一种结合贪心算法的混合遗传算法及其各种交叉算子,应用于平面图的四色着色问题。通过实验分析对比了该混合遗传算法的4种可行的交叉算子对该算法的影响,结果显示,边重组交叉算子效果最好。     

The Digital Versatile Disc as a Learning Support Medium in the Teaching and Learning of Map Work

Abstract

This article describes the results of a study where the digital versatile disc (DVD) was used as a variant of Information and Communication Technology (ICT) in order to aid in the teaching and learning of map work in geography at secondary school level. A group of grade 10 learners of a previously disadvantaged school in South Africa comprised the target group for the project. A case study was conducted and data was gathered on the implementation of the DVD and the learners' perceptions thereof. Qualitative analysis techniques such as field notes, observation, interviews with the learners, and questionnaires were used to analyze the effectiveness of the implementation of the DVD as well as the learners' perceptions regarding the use of the DVD in geography education. The results of the study indicated that the geography learners demonstrated positive attitudes towards the implementation of the DVD as a learning support medium. To determine the contribution of the DVD project towards the achieved results of the learners in map work, both the experimental and control groups participated in a pre- and post-test at the beginning and conclusion of the project. Effect size was used to determine the significance of the differences between the two groups and indicates a strong practical significance regarding the contribution of the DVD project towards the achieved test results of the learners.     

Hybrid terrain rendering based on the external edge primitive

Hybrid terrain models combine large regular data sets and high-resolution irregular meshes [triangulated irregular network (TIN)] for topographically and morphologically complex terrain features such as man-made microstructures or cliffs. In this paper, a new method to generate and visualize this kind of 3D hybrid terrain models is presented. This method can integrate geographic data sets from multiple sources without a remeshing process to combine the heterogeneous data of the different models. At the same time, the original data sets are preserved without modification, and, thus, TIN meshes can be easily edited and replaced, among other features. Specifically, our approach is based on the utilization of the external edges of convexified TINs as the fundamental primitive to tessellate the space between both types of meshes. Our proposal is eminently parallel, requires only a minimal preprocessing phase, and minimizes the storage requirements when compared with the previous proposals.     

短期气候预测:南京信息工程大学60年回顾与展望

本文从科学发展角度回顾了国内外短期气候预测的发展历程;在此基础上,回顾了南京信息工程大学建校60 a来短期气候预测领域的团队建设及其在教学、科研和预测方面的实践,并展望其未来工作。     

“雷达干涉测量”课程教学设计与实践

雷达干涉测量作为遥感对地观测领域中的热点学科,受到测绘、地质、矿业、水利、国土资源、航空航天、地震等各行各业的广泛关注。为了适应科技发展对雷达干涉测量高级人才的需求,许多高校开设了或即将开设“雷达干涉测量”等相关课程。结合东北大学在“雷达干涉测量”课程教学及实践中的经验,围绕课程教学设计、教学方法、教学实践中遇到的问题及解决方案等方面进行了详细探讨,为促进高素质雷达遥感人才培养工作贡献力量。     

测绘专业高等专科毕业生动手能力的培养

从高等专科教育培养目标与毕业生的基本要求出发 ,阐述专科毕业生动手能力培养的重要性 ;介绍工程测量专业毕业生必经掌握的基本操作技能与动手能力培养的方法和途径 ,阐述指导教师应具备的条件等     

面向测绘新工科人才培养的体验式教学模式设计与实践

测绘学从早期专注于测量和制图,到当前已发展为广泛服务于国民经济各行各业。在我国工程教育转向新工科建设阶段,传统教学模式已无法满足测绘新工科人才的培养要求。本文设计了面向测绘新工科人才培养,以传授客观知识为核心,重塑教师、学生、知识的活动内容和形式,形成贯穿教师设计、学生体验、师生互动的5阶段体验式教学模式。将该教学模式应用于笔者所在院校测绘工程专业课程教学中,并以概念型、规律型、关系型、综合应用型4类知识点开展教学实践。实践表明,该教学模式有助于学生深刻理解知识与提升能力,是一种具有推广价值的教学模式。     

提高基础地质认识实习教学效果的研究：以南京大学基础地质认识实习为例

地质学是认识和了解地球的学科,基础地质认识实习是地质学教学过程中非常重要的实践环节,是学以致用、理论联系实际、掌握野外地质工作方法、培养学生分析和解决问题能力的重要教学环节。文章以南京大学基础地质认识实习为例,总结了近年来基础地质认识实习过程中出现的主要问题,并分析了原因,提出一些具体的行之有效的解决方法。文章认为野外地质实习过程中需要进行实习基地的筛选、教师队伍的配备、实习内容的制定、实习时间的调整、野外教学效果的评估等方面的教学改革,为野外基础地质实习效果的提高提供了有效途径。     

发现学习及其在《测量学》教学中的应用研究

本文运用现代教学理论,采用"发现学习"的教学方法进行《测量学》教学。首先论述发现学习的概念,指出采用发现学习的方法进行《测量学》教学是课程内在内容的需要。提出发现学习的《测量学》教学模式,并结合具体教学内容进行分析。从问题教学策略、情境教学策略、信息教学策略及作业教学策略四个方面进行教学策略研究。     

Tertiary teaching excellence: The CETLs scheme in England

Abstract:  This article describes the establishment of Centres for Excellence in Teaching and Learning (CETLs) by the Higher Education Funding Council in England. It outlines this approach to enhancing effective university teaching and learning and discusses four CETLs that are closely related to university geography departments and dedicated to the themes of active learning, spatial literacy, experiential learning and education for sustainable development.