关键词： Actual wastewater   Advanced oxidation processes   Electro-oxidation   Fenton-like processes   Hydroxyl radicals  

摘要： The application of electrochemical processes for wastewater treatment has increase significantly in the last two decades. However, most of the works are focused on lab-scale systems testing in saline simulated solutions spiked with a reference organic compound, evidencing the scarcity of studies on actual wastewaters through a more realistic practical approach. The aim of the present work is assessing the performance of electrochemical treatments in actual matrices, considering the formation of different oxidants species, apart from hydroxyl radicals, from dissolved ions contained in target effluents as well as both, the regeneration of Fe2+ and their combination with a light irradiation source. The degradation of a mix of microcontaminants in water matrices with different complexity by solar photoelectron-Fenton at natural pH and at pilot scale has been carried out at Plataforma Solar de Almeria. Higher degradation rates were obtained when focusing on the more complex and saline matrices. In addition, complex industrial wastewaters mineralization was also studied by means of solar assisted electro-oxidation, showing the crucial role of ammonium concentration in the effluent, since it acts as a competitor for active chlorine species and so reducing the mineralization rate. (C) 2021 Elsevier Ltd. All rights reserved.

关键词： Urban experiment   Public transport   CO2 emission   Climate change   Low carbon mobility   Transition  

摘要： The development of public transport in cities can facilitate multiple ways under the Avoid-Shift-Improve (ASI) framework in reducing greenhouse gas (GHG) emissions from passenger mobility. Nevertheless, ensuring their integration and direction for moving toward low carbon mobility transitions is often challenging in practice. Urban experimentation has emerged as a governance model to foster innovations for climate change mitigation in cities while articulating a sustainable future. This paper aims to review how urban public transport experiments ensure the selection and consolidation of ASI measures to support low carbon mobility transitions. Our analysis is based on a systematic review of 41 documents gathered from peer-reviewed and grey literature databases. We find that experimentation is a critical platform for introducing novel ASI-public transport measures and exploring potential pathways toward the transitions through participative backcasting approaches. In our database, the experiments generally contribute to the rollout of LEV technologies and BRT systems, followed by the development of other ASI measures. Some of the experiments establish climate change targets to support low carbon mobility. Our review demonstrates that the experiments hold a pivotal role in developing niches for ASI-based measures and stimulating policy processes for the long-term transitions.

关键词： Autonomous mobility-on-demand   demand responsive transport   dynamic ridesharing   shared autonomous vehicle   smart urban mobility   sustainable transportation  

摘要： Emerging autonomous driving technologies are claimed to create new opportunities for realizing smart and sustainable urban mobility initiatives. In this perspective, some studies identified shared autonomous vehicles (SAVs) as being a crucial element of on-demand mobility services. There is, however, limited evidence from practice on what roles SAVs play in delivering smart urban mobility. In other words, SAV in the context of smart urban mobility is an understudied area of research with limited review studies. To bridge this gap in the literature, this study aims to investigate and map out the service attributes and impacts of SAVs on urban mobility, infrastructure and land use, travel behavior, and the environment. As the methodological approach, the paper adopts the systematic literature review technique. The study findings reveal that: (a) Providing dynamic ridesharing services could result in significant reduction of SAV fleet size, congestion, travel cost, parking demand, vehicle ownership, and emissions;(b) Positive environmental outcomes could be enhanced with full electrification of SAV fleet through renewable energy charging;(c) Integration of SAV, as a smart urban mobility system with dynamic ridesharing services, could promote sustainability and social and transportation equity, and their adoption. In the light of the findings, this study advocates the consolidation of urban/transport policy to achieve desired urban mobility outcomes.

关键词： 劳动教育   语文学科   融合  

摘要： 探究语文教学中渗透劳动教育的方法和途径,对于全面培养学生素质和劳动品质具有现实意义和社会价值。高中语文学科教学中融合劳动教育有其必要性:劳动教育与语文学科彼此融通;劳动教育符合社会主义建设者的培养方向;劳动教育是学生融入社会的“通行证”。高中语文学科要融劳动教育于课堂教学、课外综合性实战、习作训练中。

关键词： 中国现当代文学   都市文学   香港文学   岭南文学  

摘要： 现今中国现代文学创作的变化,表明我国文学的内部自我演变正成为事实。不同的区域因其不同的发展程度与地域特色,生产出不同的文学作品,它们之间的对话不断丰富生成中国现代文学的面貌,并预示其发展趋势。以都市文化孕育出的香港都市文学为参照,能够清楚了解岭南地区文学所透露的地方趣味及思维特点如何异于京沪主流,形成地方特色。都市发展的逐渐成熟,使香港都市文学的书写也随之不再仅仅止步在临摹都市外貌上,而是开始融入都市,捕捉它真实的、独特的文化内涵,对其带来的变化有着除金钱、欲望以外的种种思考。当下岭南都市文学的发生,体现出中国文学走向现代的多面性与可能性,其独特性的表征与生成路径,理应是我国现代文学研究的重要议题之一。

关键词： 文学类型   文学想象   审美格局   空洞化   新世纪   写作伦理   消费化   想象力  

摘要： 2000年,一位专家曾对新世纪城市文学作出乐观的预言:新世纪城市文学"表现空间与审美格局"将进一步拓展,文学想象将得以强化,审美多样性将得到充分地体现,"文学将因此步入一个崭新的阶段"。[1]十几年之后,我们却发现,城市文学在某种意义上被消费化和空洞化了,它的风头也在具体的历史情势中被其他话语和文学类型所盖过。

关键词： 城市化   都市伦理   文化表征   苏青   海派作家  

摘要： 近代以来的上海,在殖民文化的影响下,都市化进程呈畸形发展态势。高度文明的知识经济结构与城市空间结构,促使生活于其间的都市文人的转型。作为典型海派的作家之一,苏青开始远离宗法血缘的创作根性,思索都市中人与人、人与城的关系。她的文学作品凸显了普通市民生活的伦理价值,其最重要的文化表征意义即体现了一种真正的、依赖于工商经济与市民群体的都市伦理。苏青的书写还只能算是一种合理的想象,但却呈现了“血缘”文化到“业缘”文化的颠覆性变化,具备了现代都市伦理的基本格局与本质内涵。苏青的文学世界体现了一种文化的开新,她在呼唤一个光明时代的到来,并前瞻性地思考了现代都市伦理,这才是苏青文学的历史意义。

关键词： land use   regional planning and development   planning history   policy   planning administration   politics and society   intergovernmental planning   military planning   defense communities   urban policy  

摘要： Propelled in the United States during the twentieth century, land use compatibility issues between military installations and neighboring communities amplified due to rapid population growth, sprawling regional development, and limited intergovernmental planning. This literature review examines how the policies, politics, and planning practices aimed at combating land use incompatibilities in defense communities changed from the early twentieth century to today. Through the consolidation of established theories, this article reveals a reactive paradigm shift in institutional responses. The triaxial spectrum presented in this review offers a theoretical framework for future empirical studies of defense land use policies, politics, and planning practices.

关键词： Peri-urban areas   Peri-urbanization   Paradigms   Approaches   Methodology   Methods   Techniques   Tools   Variables   Metrics   Indicators  

摘要： In the last decade, the peri-urbanization literature has attracted a lot of attention and many scholars have tried to examine these areas from different dimensions, leading to a comprehensive understanding of peri-urban areas. However, a review of domains, approaches, methods and indicators associated with peri-urbanization has received less attention. To this end, the current paper seeks to review them to fill out the gap in the field of researches related to peri-urban areas. The results reveal two thematic domains of peri-urban changes and periurban guidance. The methodological approaches were divided into three objective, subjective and pragmatic. Methods were analyzed under the subheadings of quantitative, qualitative and mixed and indicators were categorized in the form of procedural and substantive indicators. These categories form the methodological framework of peri-urbanization literature, leading to an increase in scientific awareness, understanding, supporting and validating of results.

关键词： Flood mitigation   HEC-HMS   Landsat   Detention reservoir   Flood channel  

摘要： Flood mitigation is necessary to protect urban population especially in Asian countries. Particularly in India, evidence-based research for the implementation of flood mitigation measures is quintessential. This paper investigates flood mitigation measures for Chennai, an urban area in southern India using the Hydrologic Engineering Centre-Hydrological Modelling System (HEC-HMS) model. Interactive supervised classification of Landsat imagery for land use/land cover (LULC) mapping and Thiessen polygon-based rainfall are used in the HEC-HMS model. The results show that increasing the capacity of tanks by 20% and incorporation of Soil Conservation (SC) measures leads to 3.34% and 4.91% reduction in peak discharge, respectively. Hence, evidence is less to suggest that increasing the capacity of tanks by 20% will have significant effect to mitigate the 2015 flood. Construction of Orathur reservoir, with an initial volume of 18.42 Mm(3) before the flood event, leads to a reduction in peak by 7.52%. The creation of flood channel alone attenuates 14.79%, and combination of construction of reservoir along with SC measures in the upstream watersheds leads to an attenuation of 12.12%. Although the natural flood management practices may not lead to significant attenuation in the case of extreme events, the combination of SC measures and construction of Orathur reservoir and flood channel produce a maximum decrease in peak by 26.86%. This investigation of multiple flood mitigation measures reveals that the mitigation of extreme events like 2015 would be hydrologically possible, although limited in capability, and it would be better helped if proper floodplain management policies are in place in urban areas.