无限维线性空间上线性变换的象与核

本文考虑无限维线性空间V上的一个线性变换σ,其象Im（σ）与核Ker（σ）是否为空间V的直和项的问题．主要结果如下：如果Im（σ）是有限维的,那么Ker（σ）是V的一个直和项,即存在V的一个子空间U,使得V=U（＋）Ker（σ）：并且V可以分解成Im（σ）与Ker（σ）之直和的一个充要条件为下列两个等式之一成立：V=Im（σ）＋Ker（σ）与Im（σ）∩Ker（σ）{θ}．     

让思维导图成为初中语文自主学习的拐杖

初中语文自主学习是学生在教师指导下,以语言文字为载体,在自我认知、体会、分析、思考、解疑等语文实践中形成语言思维能力的语文学习方式与过程。思维导图是一种用图画进行思考的新的思维模式,它是把语言中的隐性思维通过导图的形式进行显性化处理,它能快速理清思路、启发联想力和概括力;在对语言文字进行图像化处理的过程中,思维导图可以促进手脑并动,激发兴趣,从而实现有效的思维训练,有利于达成自主学习的目的。     

高职数字测绘教学存在的问题及教学方法研究探析

随着数字测绘技术的发展,传统的测绘教学内容和方法已不能适应新形势的发展需求,在阐述传统测绘的教学方法现状的基础上,对数字测绘教学方法进行的探讨,得出以下结论：拓展校企合作广度,强化校企合作深度;完善课程总体设计与单元设计的演绎;丰富测绘课程,提高测绘教材选用及编写。     

非线性2m阶微分方程边值问题解的存在性和多重性

利用强单调映象原理和临界点理论讨论2m阶微分方程边值问题{（-1）^m·u^（2m）（t）=f（t,u（t））,t∈[0.1] u^（2i）（0）=u^（2i）（1）=0 （i=0,1…,m-1）,其中f：[0,1]xR^1→R^1连续,得到其解的存在性和多重性．     

Cognitions of Expert Supervisors in Academe: A Concept Mapping Approach

Eighteen expert supervisors reported their thoughts while preparing for, conducting, and evaluating their supervision sessions. Concept mapping (Kane & Trochim, 2007 ) yielded 195 cognitions classified into 25 cognitive categories organized into 5 supervision areas: conceptualization of supervision, supervisee assessment, supervisory relationship, supervisor self‐assessment, and administration of supervision. Implications for future research and supervisor training programs are discussed.     

基于XML与PSL的电子商务信息协同交互的研究

为了解决异构系统的电子商务过程中流程信息的协同交互,本文探讨了本体论(PSL)和XML的技术特点,设计一个基于XML的流程描述元模型,在语义层次上通过PSL语义定义和映射规则来统一基于XML描述流程信息,实现了流程信息的协同交互。最后通过具体的采购过程实例,验证了该模型及实现方法的可行性。     

Complete graphs and bibliographic coupling: A test of the applicability of bibliographic coupling for the identification of cognitive cores on the field level

The method of bibliographic coupling in combination with the complete link cluster method was applied for mapping of the field of organic chemistry with the purpose of testing the applicability of a proposed mapping method on the field level. The method put forward aimed at the generation of cognitive cores of documents, so-called ‘bibliographic cliques’ in the network of bibliographically coupled research articles. The defining feature of these cliques is that they can be considered complete graphs where each bibliographic coupling link ties an unordered pair of documents. In this way, it was presumed that coherent groups of documents in the research front would be found and that these groups would be intellectually coherent as well. Statistical analysis and subject specialist evaluations confirmed these presumptions. The study also elaborates on the choice of observation period and the application of thresholds in relation to the size of document populations.     

国民"健商"培育与学校体育改革

采用文献资料、信息查询等方法,对“健商”这一新概念的内涵、国民“健商”基本状况及提高国民“健商”的方法作了尝试性的研究与探讨。认为,“健商”是一种新健康文化概念;提高国民“健商”应更新学校体育基本理念,改革体育课程,加强学校体育环境的建设,加强学校、社会、家庭一体化建设,注重体育教师素养的提高。     

The role of pelvis-thorax coupling in controlling within-golf club swing speed

Pelvis-thorax coordination has been recognised to be associated with swing speed. Increasing angular separation between the pelvis and thorax has been thought to initiate the stretch shortening cycle and lead to increased clubhead speed. The purpose of this study was to determine whether pelvis-thorax coupling played a significant role in regulating clubhead speed, in a group of low-handicap golfers (mean handicap = 4.1). Sixteen participants played shots to target distances determined based on their typical 5- and 6-iron shot distances. Half the difference between median 5- and 6-iron distance for each participant was used to create three swing effort conditions: “minus”, “norm”, and “plus”. Ten shots were played under each swing effort condition using both the 5-iron and 6-iron, resulting in six shot categories and 60 shots per participant. No significant differences were found for X-factor for club or swing effort. X-factor stretch showed significant differences for club and swing effort. Continuous relative phase (CRP) results mainly showed evidence of the stretch shortening cycle in the downswing and that it was more pronounced late in the downswing as swing effort increased. Substantial inter-individual CRP variability demonstrated the need for individual analyses when investigating coordination in the golf swing.     

隐喻映射的认知差异文化根源

隐喻研究向认知领域扩展开辟了一条从认知角度来研究隐喻的新途径。隐喻的实质就是通过一个认知域映射到另一个认知域的过程。而隐喻映射不可避免要受到文化的制约。如果不了解隐喻映射所依托的文化背景,就会造成隐喻理解的困难。因此,只有了解隐喻映射的认知文化根源,认识到隐喻背后深厚的文化内涵,才能准确理解其喻义。