关键词： Urban freight transport   City logistics   Urban freight network design   Urban distribution innovations   Sustainability   Systematic literature review  

摘要： Purpose Freight network planning and the application of distribution innovations are popular fields of research on sustainable urban logistics. However, considerable research on freight network design lacks a comprehensive consideration of the application of distribution innovations. This observation implies that sustainable urban freight research appears highly fragmented in topics of network design and distribution innovations. From the perspective of long-term planning, this situation possibly serves as a barrier to further promotion of sustainability. The objective of this paper is to analyze existing research gaps of literature to further promote the sustainability of urban logistics systems from a future perspective. Design/methodology/approach This paper employs a systematic literature review (SLR) method, which covers 164 papers and research works published in 2013-2018. The article corpus involved the innovative schemes of freight network design and the emerging delivery concepts in cities. Based on an analysis of articles' relevance, the most significant research contributions on both city logistics network design and exploitation of distribution innovations are detected. Findings This paper has found four research gaps in aspects of network design and distribution innovations. To respond to these gaps, we propose the research framework of sustainable and flexible future urban freight planning (SFFUFP) based on trends of city development, while discussing further research direction on urban freight planning. Originality/value The authors have found four research gaps in aspects of both urban freight network design and distribution innovations in which scholars could be encouraged to contribute. The research framework of SFFUFP can further promote sustainable urban logistics from a view of future management.

关键词： 白话新诗   现代诗   早期城市   城市文学  

摘要： 北京、上海这两座新文学的中心城市,在新诗的发生和发展过程中各自起到了很大作用。通过比较1920—1930年代两地新诗的特点,能够观察到的,是中国现代意识生成的两种不同的方式:一则是人文主义式的自我认同的发生,以及由此带来的一系列人与环境的关系的深思,而在上海,都市的物质现代性和新的感觉结构,成为现代诗"再发生"的一大重要基础,从中亦可看出早期城市文学在北京与上海的不同表现。

关键词： 文学写作   大学老师   城市写作   文艺性   社会学   精神背景   期待   有意思  

摘要： 徐刚:受庆祥的委托,来担任这次的主持。这次我们非常荣幸请到了来自上海的姬中宪先生,他是他这个年龄段著名的,也是很重要的作家。我了解到一个非常有意思的细节,就是中宪兄原来是大学老师,研究社会学的。一个社会学工作者写小说,让我有一种期待,我以为他会有很多非常坚硬的东西,对现实正面强攻,但我读过这两本小说之后发现他是非常内敛的,文艺性非常强,更强调一种精神背景。所以我也期待今天的讨论能够结合城市写作来谈,谈他的作品在城市空间的背后呈现的一种精神背景。

关键词： Gamification   Games   E-participation   Governance   Civic engagement   Policy-making  

摘要： With increased digitalization, governments and public institutes became potentially better able to practice fuller and wider ranges of democratic governance through e.g., e-participation. E-participation, as any means of engagement with the common good, is, however, a difficult area of human motivation as it can be seen to exist outside the common hurdles of the everyday life and where the effects of participation are often invisible or take a long time to materialize. Recent trends of digitalization, such as gamification;a popular approach for stimulating motivation, have been proposed as remedies to foster e-participation. A plethora of applications and research has emerged related to gamified e-participation. However, there is currently a dearth in our knowledge of how gamification is being applied, researched or what its possible positive and negative outcomes can be. This study employed a systematic literature review approach in order to summarize research and findings on gamified e-participation. 66 papers were reviewed, the majority of which indicated that gamified e-participation is linked to increased engagement, motivation, civic learning and enjoyment amongst other outcomes. Nonetheless, question remains as to ethical and inclusive gamification, for which, this research provides directions for future research.

关键词： Zhengzhou   rapid urbanization   land use   hydrological process   comprehensive land use dynamics  

摘要： Changes in the hydrological process caused by urbanization lead to frequent flooding in cities. For fast-growing urban areas, the impact of urbanization on the hydrological process needs to be systematically analyzed. This study takes Zhengzhou as an example to analyze the impact of urbanization on the hydrological process based on 1971-2012 hourly rainfall-runoff data, combining Geographic Information Systems with traditional hydrological methods. Our study indicates that the rain island effect in different districts of city became stronger with the increase of its built-up. The uneven land use resulted in the difference of runoff process. The flood peak lag was 25-30% earlier with the change of land use. The change of flood peak increased by 10-30% with the change of built-up. The runoff coefficient increases by 20-35% with the increase of built-up, and its change increased with the change of land use. Affected by the rain island effect, precipitation tends to occur in areas where built-up is dominant, which overall magnifies the impact of urbanization on the hydrological process. This provides new ideas for urban flood control. Refine flood control standards according to regional land use changes to cope with the hydrological process after urbanization.

关键词： Evaluation   Development  

摘要： Purpose The purpose of this paper is to analyze the research trends in smart cities (SCs) in order to demonstrate the most and the least active fields, researchers, institutions, frontier active centers/authors and funding institutions, as well as drawing the map of the most active countries in this scope. Design/methodology/approach Bibliometric data of 4,696 scientific works were collected from Web of Science, one of the most authentic bibliometric databases, within 1970-2018. The data were analyzed using scientometrics and content analysis methods and visualized by tables, charts and atlases. Findings The results showed an increasing trend in these studies mostly published as conference papers during 48 years. In this period, 0.6 percent of the papers got more than ten citations. Highly cited fields in the area of SCs were orderly smart IT infrastructure, smart government, smart environment, smart mobility, smart energy, smart economy and smart citizen. The geographic atlas of SC studies showed that the frontier countries in SCs were China, Spain and Italy, orderly. China's main focus was on smart infrastructure while Spain's focus was smart citizens and smart energy. Italy's studies were mostly concentrated on smart government, smart mobility and smart environment. In general, it can be concluded that "smart IT infrastructure" was the most noted among the other components of SCs. Originality/value The scientometrics of SC literature has been conducted for the first time.

关键词： Smart city (SC)   Scientometric review   Information and Communication Technology (ICT)   CiteSpace   Urban innovation   Sustainable urban development  

摘要： In recent years, smart city (SC) has attracted increasing attention from both academia and industry due to a mix of urbanization, informatization, and globalization. Although several literature reviews of SC research have been conducted, there still appears to be a lack of systematic quantitative and visual investigation and multidisciplinary scrutiny of the structure and evolution of this field. This paper conducts a scientometric review of the progressively synthesized network derived from 7840 bibliographic records from a topic search on SC in the period 1990-2019. Using CiteSpace, co-occurrence analysis of categories is conducted to explore the evolution of the disciplines engaged in SC research;co-word analysis of the keywords and document co-citation analysis associated with cluster analysis are further performed to reveal the development paths and research topics in terms of burst terms, text and citation-based clusters, citation structure, and pivotal points in the field. These scientometric techniques are combined to: (1) reveal the intellectual division of this developing field using a visual and comprehensive approach, (2) identify in chronological order the 10 core research sub-topics in this area with burst references and terms, (3) identify Internet of Things, big data, and fog computing as the most promising technologies for SC planning and development, and (4) conclude that smart sustainable cities and sustainable smart cities are the two emerging trends in the domain. Overall, this paper provides a visual, quantitative, and longitudinal large-scale review of the most recent literature on SC research, providing a broad overview and system thinking for researchers and practitioners with respect to SC. (C) 2020 Elsevier Ltd. All rights reserved.