城市规划管理信息系统的设计与实现

针对目前城市规划信息化管理过程中存在的问题,本文首先对规划管理信息化的流程进行分析,并以地理信息公共平台为开发平台,利用其提供的在线地图服务实现规划管理信息系统中所需资源的整合,信息查询统计等。重点介绍了该系统的体系结构,功能模块设计和关键技术。     

具备兼容性的在线坐标转换系统设计

介绍了区域CORS系统地方坐标转换参数保密运用的常规方法,提出了通过网络实时进行在线坐标转换的方法;通过合理设计软件接口及公开数据通信协议,解决了各仪器厂家的手簿软件兼容问题;并通过实例验证了方法的可行性。     

Green travellers? Exploring the spatial context of sustainable mobility styles

In developed nations a growing emphasis is being placed on the promotion of environmental behaviours amongst individuals, or ‘citizen-consumers’, as a means to reduce personal carbon emissions in the light of climate change. Within the UK, focus has tended towards the segmentation of consumers into ‘lifestyle groups’ and the subsequent development of so-called social marketing behaviour change strategies, promoted as a way to encourage environmental behaviours. In the context of travel and tourism research, this approach has been operationalised through the notion of ‘mobility styles’ as a way of understanding the motivations and barriers different groups of consumers face when making pro-environmental travel decisions. However, this paper argues that the issue of climate change presents a major challenge for those attempting to promote behavioural changes using a single ‘mobility styles’ approach because of the ways in which issues such as climate change transcends the spatial and motivational contexts for travel behaviours. Using data gathered as part of a UK-based project on sustainable travel, the paper will demonstrate the potential conflicts that emerge when exploring daily travel behaviour and travel for short-breaks and holidays using a single mobility styles approach. The paper will argue that the discord between daily and holiday travel raises important questions for adopting a single and asptatial mobility styles approach for promoting behaviour change. This in turn highlights the challenges faced by a wider community of both researchers and policy makers in the environmental social sciences who seek to use segmentation as the basis for understanding and promoting behavioural change.     

基于出游力的我国主要国际客源市场分类研究

从影响旅游者出游能力的相关因素出发,以2010年的统计数据为基础,选取了21个主要客源国,对影响其旅华潜力的9项相关因素进行了因子和聚类分析。结果显示:国际客源国的旅华潜力主要受客源国经济发展因子、社会发展因子和对华联系因子3类公共因子的影响;根据旅华潜力影响公共因子进行聚类分析的结果显示,我国21个主要客源国聚合为5大类,总体上旅华率与其出境旅游率相比还处于较低水平;短期内我国入境游客源国的开发重点应该是3～5类客源国。     

Demanding distances in later life leisure travel

This article draws on a serial interview study of later life leisure travel in the UK to question how a wider trend towards holidaying further afield has come to feature in the lives of three cohorts of older Britons. Drawing on theories of social practice that see notions of desirable activity as produced through the interplay of opportunities to engage in relevant activities, collective apprehensions of what doing these activities should involve, and the physical capacities necessarily required to undertake them, we examine their leisure travel in two regards. Firstly, we consider how evolving social and infrastructural arrangements are effectively demanding greater distance travel in the sense that they shape what socially desirable leisure travel is taken to entail at certain points in time. Secondly, we examine how distance travel may be physically demanding in the sense that older bodies may be particularly likely to face certain challenges when they travel. This strategy allows us to examine how broader social expectations regarding distance travel have become part of the lives of older Britons and the manner in which they are currently reconciling them with both the anticipation and the experience of bodily ageing. We end with the implications of our findings for the future of later life leisure travel as a potential hotspot of growing societal energy demand and the further application of social practice theory in view of the evidently variable capacities of human bodies.     

在线统计专题地图知识规则构建方法及应用

研究了在线统计专题地图制作过程中的经验知识特征和相关理论,建立了制图知识规则,形成了包括专题表达规则、制图色彩规则、制图模板规则的制图知识规则成果。并利用在线动态专题地图技术,以交互引导的方式设计并实现了基于制图知识规则的在线统计专题地图制作应用系统,取得了较好的效果,对专题制图知识规则的建立及应用有着重要的推动作用。     

饱和黏土中固定锚腚拖曳锚嵌入轨迹预测模型

饱和黏土中固定锚腚拖曳锚的嵌入轨迹和承载力预测是深水系泊系统设计的关键。从固定锚腚拖曳锚在饱和黏土海床嵌土的初始状态出发,将固定锚腚拖曳锚和周围土体视作宏单元,假设在锚链拉力作用下宏单元沿土体屈服面法向运动,利用锚链方程计算锚眼拉力,基于增量迭代法建立了预测固定锚腚拖曳锚嵌入运动轨迹和锚眼拉力的模型,编制了相应的计算程序。利用程序预测了Bruce Dennla MK4固定锚腚拖曳锚、Murff算例拖曳锚在饱和黏土中的运动轨迹和承载力,结果表明：本文所建立的模型预测结果正确,可以用于预测固定锚腚拖曳锚嵌入饱和黏土全过程中板锚的运动轨迹、运动形态和锚眼拉力;固定锚腚拖曳锚嵌入过程中,锚运动形态有一个调整过程,因此,旋转角先减小,而后增加,并逐渐趋于稳定值。     

开拓西部旅游新天地——纪念徐霞客逝世360周年

本文系统概要地分析了徐霞客的学术思想,尤其是对徐霞客的旅游观念及其探险旅游和科学发现等作了论述。故此,文中提出了开拓西部旅游新天地的见解。     

Online location of seismic damage to a water distribution system

As one of the most important urban lifeline systems, a water distribution system can be damaged under a strong earthquake, and the damage cannot easily be located, especially immediately after the event. This often causes tremendous difficulties to post-earthquake emergency response and recovery activities. This paper proposes a methodology to locate seismic damage to a water distribution system by monitoring watcr head online at some nodes in the water distribution system. An artificial neural network-based inverse analysis method is developed to estimate the water head variations at all nodes that are not monitored based on the water head variations at the nodes that are monitored. The methodology provides a quick, effective, and practical way to locate seismic damage to a water distribution system.