独柱塔空间缆索自锚式悬索桥主鞍座空间受力分析

以南京江心洲大桥为工程背景,对空间缆索自锚式悬索桥主鞍座的相关问题进行研究.以大型通用有限元程序为平台,采用二次开发技术,建立精细化有限元模型,在此基础上采用合理的加载模式对其进行空间受力分析,并阐述与空间主鞍座相匹配的主缆切点简化修正方法.结果表明:空间主缆在成桥状态对主鞍座横向力的作用会造成鞍槽外侧壁应力大于内侧壁的应力;主缆横向体积力会对主鞍座压紧装置和鞍体产生梯度分布的竖向挤压力;自锚式悬索桥体系转换过程中缆索的几何非线性效应显著,体现在空缆到成桥状态主缆与主鞍座空间切点位置会有较大的变化.     

论彼得·德鲁克的管理沟通理论与高校师生关系的调谐

师生关系是高校人际关系的最重要的关系之一。近年来,高校师生关系紧张的典型案件越来越多,学生对师生关系的满意度也不高。引入彼得.德鲁克的管理沟通理论,从教育社会学和组织行为学的角度分析师生关系"失谐"之因,并从拓展师生沟通的三度空间(频度、广度和深度)、"弯下腰"倾听学生心声、强化师生共同体观念和修炼"罗丹式"的眼睛等四个方面对教师提出建议以作为调谐师生关系之用。     

武术理论的辩证思维论析

运用马克思主义的科学原理,探讨武术理论中的辩证思维,揭示其特有的基本规律,证明武术理论的思维方式已步入较高级的发展阶段,具有不客忽视的先进性。     

竞技体育发展方式基本理论问题探析

摘要：转变发展方式是我国“十二五”期间体育事业发展的主线,对竞技体育发展方式基本理论问题的研究至关重要。为深化对于竞技体育发展方式转变的理论认识,运用文献资料法,在认识竞技体育发展方式概念、分类和评价的基础上,提出了竞技体育发展方式转变的目标、要求和支撑条件。研究认为：1）竞技体育发展方式转变的目标为集约、均衡、和谐、常规化的发展等。2）要求为科学认识转向、转幅、转速问题,合理处理旧发展方式与新发展方式的关系,正确处理转变的短期效应与长期效应的关系。3）竞技体育发展方式转变的支撑条件为人才资源、科技和管理创新、变革的共识性认识等。为竞技体育发展方式的转变研究提供学理上的支撑。     

A first introduction to archival science

This first introduction, written for educational purposes, is meant to be a concise basic text in which the core concepts of archival science are coherently defined and explained, in a non-polemical way and departing from a de-institutionalised point of view. It is not intended to support or reject any single theory, but to provide an overview. It should be read as a synthesis of a variety of shared ideas and views, not as a manifesto of a new approach to archival science. If there is anything new to it, it might be located in the coherent and integrated presentation. In this primer of archival science annotation has been avoided. The first of several versions of this First Introduction was written in August 1995. It was meant to meet the need of the Netherlands Archiefschool for a basic text on archival science which could support its different programs for archival education and training. After ample discussion with the archival science teachers of the Archiefschool, it was introduced in the 1995/1996 courses. From then on, it has been used in almost all courses and classes on archival science on the undergraduate, graduate and postgraduate levels and in several training and retraining programs of the Archiefschool. The design of the first version has been maintained in all subsequent versions, including this last one. Still, the text has frequently been adapted as a result of discussions with students and colleagues, in and outside the school. This first English version can almost be deemed as a collective product. Of the numerous colleagues who were engaged in this discussion and contributed to the text, special mention has to be made of Peter Horsman, Hans Scheurkogel, Hans Hofman, Eric Ketelaar, Herman Coppens and Kent Hayworth, who commented the English version. For the final text and all imperfections that may still cling to it I am, of course, responsible. An earlier version in Dutch has been published as: Theo thomassen, “Een korte introductie in de archivistiek”, in: P.J. Horsman, F.C.J. Ketelaar en T.H.P.M. Thomassen (red.),Naar een nieuw paradigma in de archivistiek ('s-Gravenhage, 1999), pp. 11–20.     

长三角城市群碳排放强度的空间效应及影响因素——基于产业转移视角

长三角城市群协同发展背景下,城市间产业转移频繁,伴随经济和碳排放的连接,对城市碳排放强度产生的影响成为区域低碳发展需要考虑的重要战略问题。本文采用动态偏离-份额模型测度城市间产业转入和转出量。基于空间全局自相关、反距离空间权重和经济地理权重矩阵下的空间杜宾模型,对2005—2017年26个长三角城市的产业转移动态、碳排放强度的时空演变特征进行研究,在空间溢出视角下对城市碳排放强度的影响因素进行分析。结果表明：①碳排放强度存在显著的空间自相关性,具有明显的空间溢出效应。②长三角城市群内频繁转移的产业多数为非能源密集型产业,产业转移并未产生显著“碳减排”效应。值得注意的是,产业转移的经济影响开始显现,产业转移实际上不利于长三角城市群整体碳排放量减少。③人均GDP与碳排放强度呈现“倒U型”,技术水平与碳排放强度呈现“U型”,存在“技术进步的反弹效应”,人口数的增加降低了碳排放强度,二产比重正向作用于碳排放强度。因此在制订碳减排计划时,需要考虑不同区域生产效率、能耗强度、人力资本等因素,做好产业转入、转出的碳排放强度监测,避免盲目进行产业转移;壮大优势产业,改善产业结构,培育新增长点,发展符合城市自身禀赋的低能耗产业。     

R＆D政策及其空间效应——欧盟经验与借鉴意义

R＆D投入是提升区域创新能力的重要途径,R＆D政策对于提升我国自主创新能力尤为重要。在对比分析创新与R＆D内涵的基础上,对R＆D政策的概念和内涵给予界定。以欧盟为例,介绍了欧盟R＆D政策的构成、政策效果及其在不同空间层面的区域效应。针对我国R＆D政策提出几点建议。     

运动直觉的理论建构

初步建构了运动直觉的理论,提出了一些观点与认识,如:1)运动直觉是个体在复杂的运动情境中,根据有限的信息,对问题进行直接地和迅速地解决的思维.2)运动直觉具有直接性、快速性、或然性、情境性、运动水平差异性、信息受限性和直觉过程伴随着对结果正确性的自信心等特点.3)运动直觉是独立的直觉的下位概念,是认知技能的较高水平,在运动思维中占有着独特的地位.4)运动直觉存在着运动水平差异、个体差异和项群差异.     

空间数据索引结构及聚类方法

聚类是空间数据挖掘的主要技术之一 ,目前空间数据库的应用日益广泛 ,但空间数据有许多不同于关系数据库的特征。所以把已有的聚类算法应用到大型空间数据库中有许多缺点 ,且效率很低。因此必须借助高效的索引技术来提高空间数据的处理效率。     

Initial Communication with and Attitudes toward International Students: Testing the Mediating Effects of Friendship Formation Variables

From the theoretical perspectives of intergroup contact, predicted outcome value (POV), and similarity-attraction, this study examined U.S. host nationals’ (N = 342) communicative behaviours in a recent initial encounter with an international student and attitudes toward the student’s cultural group as a whole. Testing of two models indicated the significant sequential mediator effects of perceived similarity-social attraction and POV-social attraction between communication variables (e.g. amount of communication exchange in both models, self-disclosure in model 1, and information seeking in model 2), and intergroup attitudes (e.g. behavioural attitudes). Findings in general demonstrated that contact effects in the intercultural context varied according to specific measures of communication, the mediating mechanisms, and intergroup attitudes.