SH3603汽车驱动桥齿轮联接螺栓断裂原因及消除方法     

韩进  刘朝红  陈善忠 《辽宁科技学院学报》1999,(2)

对SH3603（35D）型矿用汽车驱动桥主减速器一、二级从动齿轮的联接螺栓断裂事故进行了疲劳断裂理论分析,找出了根本原因,并提出具体的消除方法。  相似文献   

Can cities shape socio-technical transitions and how would we know if they were?   总被引：2，自引：0，他引：2  

Mike Hodson  Simon Marvin 《Research Policy》2010,39(4):477-485

This paper asks two - relatively simple - questions: can cities shape socio-technical transitions? And how would we know if they were? There are three key objectives. The first of these is to set out emerging, and in our view, convincing evidence, that large world cities have political aspirations to develop purposive and managed change in the socio-technical organisation of infrastructure networks that can be characterised as ‘systemic’ transitions. The second objective is conceptual in orientation and seeks to address how we understand transitions at the scale of the city, the role of ‘the city’ in undertaking transitions, and review both the strengths and shortcomings of the multi-level perspective (MLP) on socio-technical transitions in addressing this. The third objective is to identify what an urban transition would look like, and then constructs a new framework to conceptualise and research urban transitions. The paper then summarises the key aspects and implications of our argument.  相似文献   

转型国家转型发展的初始条件和约束条件分析     

朱楠  任保平 《未来与发展》2010,33(11):6-10,21

本文运用高级发展经济学中的转型发展理论来说明转型与发展的辩证关系,以及其对转型国家的重要性。实现在转型中发展是转型国家的目标,但转型国家在转型时期的经济绩效表现出很大的差异性,而这种差异性是受各国转型之时的初始条件和约束条件的影响造成的。因此,初始条件和约束条件产生的各种影响迫使改革设计者必须在考虑它们的前提下,周密制定每个转型阶段的转型任务,帮助国家实现转型成功。  相似文献   

过渡农业、成长经济与中国现代农业道路选择     

伍旭中 《池州师专学报》2009,(2)

中国正处于过渡农业阶段,是一种二元农业结构;农业经济实际上是一种成长经济,不能片面追求技术投入和规模化经营。中国现代农业道路选择应从过渡农业现状和农业成长经济理论出发,走"中国式"和"世界式"农业现代化的双重道路模式。  相似文献   

Transition to school: The role of kindergarten children's behavior regulation     

Antje von Suchodoletz  Gisela Trommsdorff  Tobias Heikamp  Frank Wieber  Peter M. Gollwitzer   《Learning and individual differences》2009,19(4):561-566

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知识分子社会角色研究的范式变迁考察     

袁同成 《华中科技大学学报(社会科学版)》2009,23(4):99-103,115

知识分子社会角色研究中先后出现的三种主要研究范式,即:单一角色的知识分子研究、角色集的知识分子研究和场域观的知识分子研究.通过分析各自的关键特征和差异可见:由于范式流变中各范式间缺乏足够的对话和融合,知识分子社会角色研究尚未形成一个完整的理论体系,因之导致理论与实践中的混乱,故知识分子社会角色研究的范式还需进一步的整合.  相似文献   

The Social effects of the Australian Higher Education Contribution Scheme (HECS)     

Gary Neil Marks 《Higher Education》2009,57(1):71-84

Australia’s Higher Education Contribution Scheme (HECS) is an income contingent loan scheme, in which university students pay back part of the costs of their tuition after their post-university income reaches a certain threshold, is an important policy innovation for the financing of higher education. However, its critics claim that HECS increases socioeconomic inequalities in higher education and the HECS debt reduces the ability of young people to make the transitions to adulthood. This paper investigates these claims. There is no evidence that socioeconomic inequalities in higher education in Australia increased after the implementation of HECS in 1989 or the 1997 reforms. The magnitude of the HECS debt was found to have a negative impact on the transition to parenthood, but had no negative impacts on other transitions to adulthood: leaving the parental home, marriage and home ownership. Its effects on parenthood were moderate compared to other influences, such as full-time work in the previous year, marriage and being in a de facto relationship. Furthermore, only a small proportion of young people who attended university have large enough HECS debts for it to affect their fertility decisions.

Gary Neil MarksEmail: URL: http://www.melbourneinstitute.com/people/gmarks/

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晋陕豫黄河金三角地区城市旅游竞争力分析     

杜文霞 《三门峡职业技术学院学报》2010,9(4):43-46

晋、陕、豫黄河金三角地区地处黄河之滨,是中华文化的重要发源地之一,人文积淀丰厚,自然资源丰富,发展旅游业的条件得天独厚,近几年已经成为三省旅游热点地区。该地区四个城市旅游条件不同,因此相对于市场来说竞争力不同。本文通过选取特定评价因子,利用统计分析软件SPSS13.0对各个城市的旅游竞争实力进行定量评估,在此基础上将四个城市分等定级。  相似文献   

话语转型与主体性的缺失     

李金龙 《鞍山师范学院学报》2010,12(1):79-82

中国现代文学经历了两次大的话语和观念转型,第一次是从家族主义、集体主义向个人主义观念的转型,以及由“非人的文学”向“人的文学”的转型,这是个体主体性从无到有的建构过程;第二次是从五四时期的个性主义向左翼的革命主义、集体主义观念的转型,这是个体主体性逐渐为集体主体吞噬并走向消亡的过程,也是文学成就逐渐滑坡的过程。  相似文献   

Transitioning in higher education: an exploration of psychological and contextual factors affecting student satisfaction     

Charlotte R. Pennington  Elizabeth A. Bates  Lauren T. Bolam 《Journal of Further & Higher Education》2018,42(5):596-607

In view of recent changes in the higher education sector, such as increased tuition fees, a greater focus has been placed on widening participation initiatives and monitoring student satisfaction. The aims of the current study were twofold: (1) to explore whether pre-entry programmes foster successful transition to higher education, and (2) to examine longitudinally the factors associated with course satisfaction. Eighty-eight first-year psychology students completed a questionnaire measuring academic self-efficacy, social identity and student satisfaction at the start (Time 1, November 2015) and end (Time 2, March 2016) of the academic year. Findings indicated that students who participated in a pre-entry programme reported higher academic self-efficacy and satisfaction compared to typical route students. Moreover, academic self-efficacy predicted student satisfaction at the start of the academic year, whereas in-group affect (a facet of social identity) predicted this at the end of the academic year. The current findings indicate that pre-entry programmes may have a positive impact on students’ sense of academic self-efficacy. On a more general level, the findings also suggest that academic self-efficacy and social identity may be key indicators of student satisfaction. This highlights the complexities of the concept of ‘student satisfaction’, and demonstrates the utility of examining multiple factors relating to student satisfaction across different time points.  相似文献