地学数据本体支持下的科学数据集成方法

科学数据的语义异构是数据集成共享的主要瓶颈。数据本体是解决数据语义异构的有效方法。首先在系统 分析地学数据特征的基础上,提出地学数据本体的总体架构,重点研究地学数据本质内容本体和形态本体,并构建了 地学数据本体库。进一步结合科学数据集成的需求,提出基于地学数据本体的数据集成总体流程。在此基础上,以科 技基础性工作专项产出的科学数据为例,开展地学数据本体支持下的科学数据集成方法应用研究,证明本方法的可行 性和有效性。     

加权平均压缩映射不动点的探讨

基于压缩映射不动点定理的思想,对加权平均压缩映射不动点进行探讨,从而方程f（x）=0的求解问题便可化为关于映射Ф（x）=x±f（x）的不动点问题,为解方程问题提供了一条新的途径．     

Employees’ perceptions of interpersonal competence: The case of South Korea

This study examined employees’ perceptions of interpersonal competence at work through the research methodology known as concept mapping. The purpose of this study was to identify the phenomenally derived components of interpersonal competence in work environments and employees’ underlying cognitive structures of interpersonal competence at work. Multidimensional scaling analysis indicated that the participants conceptualized interpersonal competence in the following two dimensions: (i) work-specific domain versus general domain and (ii) unilateral domain versus bilateral domain. In addition, hierarchical clustering on the MDS coordinates produced six clusters: Caring & Considerate, Sociable & Out-going, Kind & Gentle, Reliable & Leadership skills, and Confident & Responsible. Our results were discussed with respect to future research and educational approaches to the issues surrounding interpersonal competencies at work.     

弱压缩映射及其不动点定理

本文首先引入弱压缩映射的概念,证明了几类常见的压缩映射都是弱压缩映射.最后给出弱压缩映射的不动点定理,从而说明弱压缩映射是具有一般性的压缩映射.     

不动点理论在解一类积分方程中的应用

利用不动点定理研究一类非线性积分方程x（t）-λ∫G k（t,s,x（s））ds=φ（t）的解的存在与唯一性问题^[1]。     

新工科下测绘工程专业学生能力提升改革探讨

新工科形势下随着测绘新技术的出现和发展,社会对测绘工程专业毕业生能力有了新的要求,特别是以北斗+为核心的多源传感器,融合位置服务、人工智能、无人驾驶等新兴测绘应用领域,使得传统的以经典测绘理论和技能为主的培养模式逐渐满足不了新型测绘用人单位对毕业生能力的需求。以新工科发展和中国地质大学测绘专业工程专业认证为背景,结合中国地质大学测绘工程专业课程体系、教学方法、教学平台等现状,以提高学生掌握新测绘知识与能力为出发点,探讨新工科形势下提升测绘工程专业学生能力的教学改革方案。     

从无限可数集到有限集的保序映射

对于映射构成的半群的研究由来已久,而且得到了许多重要的结果。序关系一直是热门的研究问题,前人对于有限集合上的保序变换半群On的研究已经十分完善,而对于无限集合上的保序变换的研究一直是一个比较困难的问题。从无限可数集Z到有限集Xn={1,2,…,n}的保序映射关于映射的合成运算构成一个半群,借助前人研究On的方法和思想,讨论这个半群的格林关系。     

论篇章基础上的语义映射现象

本文根据图式理论及认知语言学的有关论述,提出语义映射的概念,探讨篇章内词语聚集同现的规律性和多样性,认为那些具有实在意义、语义上相互联系与映射的词语在篇章连贯和句间系连方面发挥着不可替代的作用,为各种篇章衔接手段发挥作用奠定了必要的认知、语义基础。     

集值映射下半连续的三个充要条件

用具体例子揭示了集值映射上半连续和下半连续本质的不同性，给出了集值映射下半连续的三个充要条件和相应的证明，使得集值映射的连续性理论在稳定性的应用中更加灵活方便，在某些情况下也可以作为集值映射下半连续的判定准则。     

A Student-centred Approach: Assessing the Changes in Prospective Science Teachers’ Conceptual Understanding by Concept Mapping in a General Chemistry Laboratory

Although researchers in higher education propose alternatives to traditional approaches to assessment, traditional methods are commonly used in college or university science courses. The purpose of this study was to explore the feasibility and validity of Prospective Science Teachers’ (PSTs) concept maps as authentic assessment tools in a student-centred approach to describe the changes in the conceptual understanding of the PSTs in general chemistry laboratory investigations. After the PSTs (n = 47) decided on important issues, such as who would assess their concept maps and what scoring strategy and criteria would be used, they practiced assessing their own and peers’ concept maps during the first five laboratory investigations. They subsequently constructed and assessed pre- and post-laboratory concept maps in a student-centred approach consisting of self, peer, and instructor assessments for the five remaining laboratory investigations. The results of the study showed using pre- and post-laboratory concept maps as authentic assessment tools in a student-centred approach was valid and reliable for describing the conceptual understanding of the PSTs in a university general chemistry laboratory course. The results of individual interviews indicated most PSTs had positive views of their assessment practices in the laboratory course. This study also provides pedagogical implications for the training of science teachers.