中国2009年金融学研究的知识图谱分析——南京大学知识图谱研究组系列论文

基于知识图谱理论,采用知识图谱绘制工具与软件对CSSCI中2009年收录的金融学文献信息进行可视化分析,发现我国2009年金融学研究的热点集中在金融危机、商业银行、货币政策等,被引文献中的高被引文献也与这些热点有关,同时各金融学研究机构之间的合作较为密切。     

我国开放存取研究主题的知识图谱分析——南京大学知识图谱研究组系列论文

在CNKI数据库中获取我国有关开放存取的论文,利用知识图谱工具对其进行分析处理,以可视化形式展示我国开放存取研究主题及其之间的联系,发现国内开放存取研究重点领域主要集中在数字图书馆、机构知识库、开放存取期刊、OAI、学术交流等。     

A class of Marcinkiewicz integral operators on product domains

In this paper, the author proves that theL ^p-boundedness of the Marcinkiewicz integral μ_Ω on product domainsR ⁿ×R^m; for Ω∈(1)∩(5) improves the result of Chen et al. (2000). Project supported by Major Project of NSFC (No.19631080) and NSF of Zhejiang province (No. RC97017).     

铁磁性的物理本质

自发磁化和磁畴结构是铁磁性物质的两个基本特点。外斯(Weiss)“分子场”理论是解释自发磁化的经典理论,但并不能说明“分子场”的本质;根据量子力学研究认为“分子场”的本质是相邻原子中电子间的相互交换作用导致了磁有序,因此,从本质上说“分子场”属于静电作用。     

Two kinds of B-basis of the algebraic hyperbolic space

In this paper, two new kinds of B-basis functions called algebraic hyperbolic (AH) Bezier basis and AH B-Spline basis are presented in the space (?)k=span{1,t,...,tk-3,sinht,cosht}, in which K is an arbitrary integer larger than or equal to 3. They share most optimal properties as those of the Bezier basis and B-Spline basis respectively and can represent exactly some remarkable curves and surfaces such as the hyperbola, catenary, hyperbolic spiral and the hyperbolic paraboloid. The generation of tensor product surfaces of the AH B-Spline basis have two forms: AH B-Spline surface and AH T-Spline surface.     

函数矩阵积分方程与波的有限传播法

研究一类相当广泛的函数矩阵积分方程的解析近似算法,并应用于求解第三类双曲方程组定解问题。     

越南留学生汉越声调比较

汉语与越南语都属于声调语言,两者在声调类型上有着相似之处。受母语正迁移的影响,越南留学生"洋腔洋调"现象并不突出,而不同语言必然存在的负迁移作用则使得越南留学生学习汉语声调的过程中不可避免普遍性声调偏误现象。研究这些偏误现象必然有利于对外汉语教学的开展。     

离散现象与波的有限传播法

综述20多年来双曲型方程组问题函数方程方法的理论研究、数值计算以及实际应用,这一领域的状况.     

习惯领域理论与企业知识结构分析

本文基于习惯领域理论，通过对企业知识结构的分析，揭示了企业中组织知识的积蓄与能力之间的关系。指出企业的知识结构是形成竞争力的基础，企业必须不断地克服习惯领域的制约，调整、优化其知识结构。才能获取、保持其竞争能力。     

A structural equation model analyzing the relationship of student achievement motivations and personality factors in a range of academic subject-matter areas

The question of subject-specificity of achievement motivations is important, both for educational psychology, as well as for educational policy. This study contributes to the investigation of the heterogeneity in achievement motivations in the context of the expectancy-value model. Whereas existing research deals with middle and high school students and their motivations for a range of broad domains, this article focuses on university students (n = 264) and subject domains that are more congruent. We adopt an affect-extended version of the expectancy-value model. Using structural equation methods, we are able to decompose achievement motivations in generic and subject-specific components.