The geographies of difference in conflating digital and offline spaces of encounter: Migrant professionals' throwntogetherness in Singapore

This article explores the effects of people's digital coexistence on the construction of difference and feelings of aversion to or recognition of “others”. It seeks to make a theoretical contribution to works on the geographies of difference and encounter, Internet or digital geography, as well as on migration and digital media, by highlighting the relevance of indirect and fleeting digital encounters and the dialectical process in which encounters play out in intertwined, specific and multiple digital and physical spaces that we define as “cON/FFlating situational places of encounter”. Based on a qualitative study with Chinese, Filipino and German migrant professionals in Singapore, it shows how fleeting digital encounters take an ambivalent role through challenging but also producing new “temporary fixings of difference”. As such they can engender new sensibilities for and openness toward the host society but also breed new, or aggravate existing, cultural stereotypes and prejudices. The findings show that inherited and instituted classificatory practices that people use to structure and make sense of their fleeting interactions with others in offline space are, where possible, transferred and imposed on encounters in digital space. At the same time, they are inflected or replaced with new markers of difference where ingrained sorting mechanisms applied in offline space did not help them make sense of encounters in digital space.     

矿泉水常识问答

矿泉水中的饮用天然矿泉水在地下深循环条件下形成,化学成分稳定,水源卫生,细菌学指标安全。有一定含量的矿物盐、微量元素或二氧化碳气体,作为一种天然饮料,是其他饮用水无法比拟的,无须医生指导,长期饮用也不会对人体产生危害。     

基于交通轨迹数据的三维动态噪声地图

噪声信息具有空间传播和随距离衰减变化的特征,采用三维动态可视化形式表达噪声地图可以体现该特征。本文针对噪声的空间分布与强度变化提出一种噪声地图表达的方法,基于Bertin符号参量分析,以具有高度可变的方柱并配以深浅变化的颜色作为噪声符号,动态传递噪声信息。为进行多尺度地图展示,在不同地图等级下设有相应细节层次的符号尺寸和定位排列方式。噪声地图以Web端Mapbox为展示平台,基于交通噪声模型和GPS轨迹数据,对上海黄浦区某区域一时间段内的噪声情况进行模拟表达,实现噪声数据的立体动态化显示。三维动态的表达扩展了噪声数据的表现维度,多维度、多参量的立体动态符号不仅可准确刻画噪声的分布,而且从视觉观感上提高了受众的兴趣度和专注度,这为研究噪声的热点分布、传递趋势等空间规律提供了可视化参考。     

城市居住空间分异背景下青少年成长的邻里影响——以广州市鹭江村与逸景翠园为例

城市居住空间分异是现代城市社会阶层分化导致的普遍现象,西方许多研究证明这种特定人群集中居住的邻里会对其中的青少年的成长产生多方面的影响。本文以广州市鹭江村和逸景翠园社区为例进行对比研究,探究中国城市中不同邻里对居住在其中的青少年成长的影响。在此将邻里特征分为社会经济特征、家庭教育观念特征、同龄人交往特征、机构资源特征4 个方面,运用logistic 回归分析发现,上述4 个方面的邻里特征确实会对青少年的成长产生影响,其中社会经济特征对青少年的学习成绩有影响,家庭教育观念特征影响青少年的教育表现与心理状态,同龄人交往特征则对青少年性格有重要影响,机构资源特征会影响青少年发展机会的获得。而邻里影响的作用机制可以用Jencks等的邻里机构资源模式和群体社会化模式来解释。     

A linear tessellation model to identify spatial pattern in urban street networks

Street patterns reflect the distribution characteristics of a street network and affect the urban structure and human behavior. The recognition of street patterns has been a topic of interest for decades. In this study, a linear tessellation model is proposed to identify the spatial patterns in street networks. The street segments are broken into consecutive linear units with equal length. We define five focal operations using neighborhood analysis to extract the geometric and topological characteristics of each linear unit for the purpose of grid-pattern recognition. These are then classified by Support Vector Machine, and the result is optimized based on Gestalt principles. The experimental results demonstrate that our method is effective for mining grid patterns in a street network.     

城市建筑环境--浅谈长沙市中医医院方案设计

本文以长沙市中医医院的方案设计为例,对如何利用自然环境划分、组织建筑空间以及结合当地人文、地理环境塑造合理的建筑造型进行了详尽的描述。     

城市地下空间开发利用容量评估的基础研究

该文探讨了城市地下空间开发利用容量评估的必要性,容量评估研究的基本内容及其关键技术。指出当前城市地下空间容量评估基础研究包括指标体系、评估模型、评估平台与评估示范四方面。城市地下空间容量评估研究不仅有利于城市地下空间的合理利用和有序开发,也有利于引导城市地面设施的合理布局与科学规划,对保障现代城市的可持续发展具有重要意义。     

关于大力发展山东省海洋旅游娱乐业的策略研究

进入本世纪末,随着我国旅游经济的快速发展,旅游业在国民经济中的产业地位已越来越突出,国家旅游局在《中国旅游业九五发展计划和２０１０年远景目标纲要》中明确提出“国家和地方政府重视发展旅游业,要把旅游业当作优势产业来认识,当作新的支柱产业来扶持和培育,实行政府主导型战略。”据统计,截止１９９６年,全国已有２２个省、市、自治区把旅游业列为“支柱产业”、“先导产业”、“重点产业”或“龙头产业”。     

Religion and technology: refiguring place, space, identity and community

This paper reviews the literature on the religion–technology nexus, drawing up a research agenda and offering preliminary empirical insights. First, I stress the need to explore the new politics of space as a consequence of technological development, emphasizing questions about the role of religion in effecting a form of religious (neo)imperialism, and uneven access to techno-religious spaces. Second, I highlight the need to examine the politics of identity and community, since cyberspace is not an isotropic surface. Third, I underscore the need to engage with questions about the poetics of religious community as social relations become mediated by technology. Finally, I focus on questions about the poetics of place, particularly the technological mediation of rituals.     

基于主体功能区的京津冀城市群碳收支时空分异与碳补偿分区

从主体功能区划视角研究碳收支和碳补偿分区,对于制定适应各主体功能区低碳发展策略,推动区域生态环境协同治理,实现高质量发展具有重要意义,也是地理学思想对于实现“双碳”目标的重要贡献。本文首先构建主体功能区视角下碳收支与碳补偿的理论框架,然后以京津冀城市群157个县级单元为研究区,引入集中化指数、标准显性比较优势指数、SOM-K-means聚类等方法研究功能区视角下京津冀城市群碳收支时空分异与碳补偿分区,并提出以低碳发展为导向的碳减排空间优化方案。结果表明：① 2000—2017年京津冀城市群碳收支量呈现波动上升态势,其集中化指数均高于0.4的“警戒线”,碳收支地区差异整体偏大。② 碳收支时空分异显著,碳排放高值区呈现以京津唐为中心,向外逐步降低的“核心—外围”空间格局;而碳吸收空间格局趋于稳定,总体呈现东、北、西部高,而中、南部低的倒“U”型格局。③ 京津冀城市群碳收支与主体功能区战略定位较为吻合,优化开发区和重点开发区是碳排放的主要承压区,而重点生态功能区是碳吸收的优势主导区,各功能区碳吸收集中化指数差别较碳排放集中化指数小。④ 京津冀城市群共有53个支付区、64个平衡区和40个获补区,结合主体功能区规划战略目标,最终形成9类碳补偿空间优化区,并提出每一类型区低碳发展方向及策略。⑤ 未来要加强更微观尺度的碳收支及碳补偿研究,丰富和完善碳补偿理论框架,将碳补偿融入到碳交易市场,探索实现“双碳”目标的多元化路径。