脱贫与经济增长:"贵州新现象"探析——贵州云南两省的比较研究

经济增长通常意味着贫困率的下降,然而,对于增长很慢的经济体或经济增长没有带动贫困率降低的案例,这种假设似乎并不成立.中国两个较为贫困省份的数据展示了这样一个谜题:贵州省的经济增长缓慢但农村贫困率的下降较为显著,对这一现象不妨称之为"贵州新现象";与此同时,云南省经济高速增长但贫困率下降较为迟缓.根据相关考察和统计数据的分析,交通、流动人口、旅游业和矿产业四个因素是解释这个谜题的关键.这四个因素在两个省的不同分布和构造解释了它们经济增长与贫困率下降关系中的不平衡性.     

路桥施工管理存在的问题及对策

路桥设施是公路交通运输的重要环节,关系到国家经济的大流通。文章概述了路桥施工项目管理的定义,探讨了路桥施工管理存在的问题,并提出加强路桥施工管理的对策,以期为广大路桥施工组织管理人员提供借鉴和参考。     

山区公路水毁防治工作之浅见

依据历年山区公路水毁资料,着重从公路勘测设计、公路养护等方面分析引起山区公路水毁的原因,论述了公路水毁预防和抢修及出现水毁情况所采取的措施。     

关于乡村道路硬化后养护与管理的几点思考

乡村道路条数多、里程长、涉及面广、投资少、配套不完善、基础设施差,乡村道路与人民群众的利益息息相关、密不可分。特别是在党中央、国务院提出建设社会主义新农村的宏伟目标后,各级党委、政府高度重视乡村道路的硬化工作。     

结核分枝杆菌诱导抗原提呈细胞Toll样受体表达差异性研究进展

该文结核分枝杆菌感染后,抗原提呈细胞表面Toll样受体(toll-like receptors,TLR)表达差异、抗原提呈细胞的增殖、分化以及相关信号通路作一阐述.     

新形势下如何开展基层公路部门工会工作

文章主要就新形势下基层公路部门工会工作中可能出现的问题和对策进行探讨。     

The long and winding roads: Perceived quality of scenic tourism routes

This study aims to understand self-drive tourists’ satisfaction with and loyalty toward scenic roads. Building on previous studies in the context of tourism destinations, satisfaction is hypothesised to be influenced by leisure and holiday motorists’ motivation for driving the routes and the provision of roadside facilities. In turn, satisfaction is assumed to increase motorists’ loyalty toward the route. The study comprises data from two scenic roads in Norway that differ with respect to landscapes formations, settlements, experiences along the routes, and travel distance. Data are analysed using structural equation modelling. Results show that roadside facilities play a crucial role in achieving overall satisfaction and loyalty among motor tourists, and that route managers should improve the quality of these and related infrastructure facilities and services. Moreover, the study indicates that it is important to take into consideration the motorists’ desire to experience attractive sceneries in order to increase overall route satisfaction. Finally, satisfaction is demonstrated to significantly increase route loyalty, although this relationship appears weaker than in conventional destination studies.     

Modelling Risk Perceptions of Stakeholders in Public–Private Partnership Toll Road Contracts

This paper investigates the risk perceptions of key stakeholder groups typically involved in public–private partnership (PPP) toll roads. Risk perceptions have an important impact on these PPP schemes for investing in public infrastructure. However, the nature and extent of risk associated with the specification of a PPP contract that commits contracting parties to deliver on their obligations remain unclear. In the context of major transport infrastructure, such as a new toll road, the often‐cited key risk to investors is the traffic (and hence demand) risk. There are, however, other risks, including political risk and media risk, the latter often causing untold harm resulting in modifications to the planned infrastructure. This paper develops a method to capture evidence on how public sector and private sector partners involved in previous PPPs perceive the levels of risk associated with each risk attribute, as a way of identifying the ex ante risk setting brought to negotiations in PPP toll road investments. Using a sample of 101 experts with contract experience in 32 countries, we develop a stated choice experiment and estimate a discrete choice model to quantify a risk profile index (RPI) to capture the perceived (relative) influence of each dimension of risk, and then identify sources of systematic differences in the RPI as a way of understanding the influence of personal traits and contextual and contractual factors.     

四通道台架试验台在整车疲劳分析中的应用

通过twr时域波形再现技术,迭代算出台架作动器的驱动信号来模拟真实道路,让车在台架上震动。试验过程中通过肉眼和显影剂检查车身焊点、悬架和其他连接点等部位,来得知多少小时后哪些零件或焊点出现问题,同时给cae疲劳分析做了验证。     

广州市老城区道路沥青路面改造典型结构研究

本文分析了旧沥青路面维修改造的影响因素,并在总结国内外旧沥青路面改造中加铺层设计方法的基础上,探讨符合广州市老城区道路现状的旧沥青路面加铺层设计方法,针对不同使用状况下的旧沥青路面,考虑经济性等因素,推荐出沥青加铺层典型结构。