基于Pro/E建立零件参数化模型

Pro/E在模具设计得到广泛应用。本文在Pro/E基础上,利用参数化设计原理、建立关系式、程序设计等手段建立零件参数化模型,并将这些模型组成三维参数化零件库。这样的零件库可以根据要求随时更新和添加新模型,具有较好的适应性和扩展性。     

美国在“普韦布洛号”事件中对苏联态度的变化

1968年发生在美朝之间的＂普韦布洛号＂事件在东北亚地区制造了紧张局面,苏联对该事件采取了看似矛盾的政策,实则不然。美国最初认为,苏联与＂普韦布洛号＂事件密切相关,但在进行深入分析之后很快改变了对苏联的这种看法。危机的和平解决取决于美苏双方存在着共同的政策底线。     

2D空间模糊区域之间拓扑关系定量描述

空间查询与分析是GIS的核心功能之一,也是GIS有别于其他信息系统的一个本质特征.然而确定性区域中的空间拓扑关系模型不能直接应用于具有不确定边界区域的地理实体的描述和计算.我们针对2D矢量空间区域,运用模糊数学、基础拓扑学等知识,讨论了如何建立模糊地理区域的空间拓扑关系的定量描述模型以及如何借助该模型进行与模糊地理区域相关的空间拓扑关系分析.     

论现代图书馆危机公关的特点与策略

现代图书馆作为公共服务的平台,面临着许多危机和突发事件的侵袭和困扰,本文从理论上梳理了危机公关内涵,归纳出图书馆危机公关的特点,分析应对图书馆危机公关的策略,并指出图书馆危机公关应对中的大忌.     

Peer relations and emotion regulation of children with emotional and behavioural difficulties with and without a developmental disorder

Children with emotional and behavioural difficulties (EBD) and those who also have developmental disorders, such as attention deficit hyperactivity disorder (ADHD) or autism spectrum disorder (ASD), can experience the same adverse consequences in their peer interactions and relationships. This present study compared the emotion regulation and peer relationships of children aged 8–12 years (M = 9.86 years, SD = 1.49) with EBD (N = 33) and children with EBD plus a diagnosed developmental disorder (N = 28). Multivariate analysis of variance (MANOVA) with Bonferroni adjusted alpha levels revealed no significant main effect for emotion regulation according to EBD status. There was, however, a multivariate main effect for sex, with females presenting with higher levels of negative emotional intensity (e.g., frustration, anger, aggression) than males. A second MANOVA revealed no significant main effect for peer relationships according to EBD status and sex. Significant correlations revealed that the EBD-only group experienced greater adverse peer interactions than the EBD-plus-developmental disorder group. These findings are important for educators and researchers involved in the development and evaluation of prevention and intervention programms for children with EBD.     

China's recruitment of African university students: policy efficacy and unintended outcomes

This article explores how Sino-African relations are affected by the growing number of Africans who pursue higher education in China. China actively recruits African university students in order to increase soft power and generate income from the export of education services. Semi-structured interviews with African university students suggest that China fails to reach these policy objectives because the students are disappointed with the quality of the education they receive. However, the students engage in trade and contribute to the fast-growing export of Chinese products to African markets, thereby reinforcing the ties between China and Africa in unintended ways.     

河北“红色”小说中的两性关系

地缘与性别是文化的两个重要维度,亦是深入探析文学作品的有效视角。河北＂红色＂小说关于人物两性关系的叙事隐含着独特的性别无意识。特定时期的政治文化与慷慨、勇武、具有庙堂性的燕赵文化在冲撞中融合,赋予文学想象丰厚的性别内涵,相对传统文化的整体性特征产生滑移。     

从“民族共生”角度认识当代中国民族发展和民族关系

在当前社会结构转型和利益格局重新调整时期,在我国树立什么样的民族观,向各民族群众灌输和倡导什么样的民族发展意识理念和价值取向,如何使各民族和谐共处是促进民族发展和处理好民族关系所必须思考和对待的重要问题之一。在当代中国,要倡导和树立各民族共生理念,认清和解决各民族共生的各种利益诉求,从而实现各民族和谐共生。     

观光旅游在两岸关系和平发展中的角色功能

2008年7月18日,大陆居民赴台旅游正式实施,开启了两岸双向旅游互动的新纪元。旅游作为一种低阶性政治活动,能够超越两岸关系结构性矛盾的边界,衍生出政治、经济、社会及文化等层面连动的大格局。两岸双方基于旅游发展所进行的合作与互动,在两岸关系和平发展进程中具有机制建构、利益联结、文化整合及社会融合等政治功能。正确认识观光旅游在两岸互动中的角色与功能,对于两岸关系的和平发展具有特别重要的意义。