论文概览 |《Sustainable Cities and Society》2023.12 Vol.99（下）

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最新推荐文章于 2026-01-07 10:31:23 发布 · 1.2k 阅读

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#人工智能 #大数据 #网络

本次给大家整理的是《Sustainable Cities and Society》杂志2023年12月第99期的论文的题目和摘要，一共包括51篇SCI论文！由于论文过多，我们将通过两篇文章进行介绍，本篇介绍第31_第51篇论文！

论文31

Numerical investigation for concentrated photovoltaic solar system in existence of paraffin equipped with MWCNT nanoparticles

聚光光伏太阳能系统中存在的含有MWCNT纳米颗粒的石蜡的数值研究

【摘要】

To generate greater electricity and heat saving, aconcentrated PVT (Photovoltaic thermal) system was applied in current study. The thermal section of the unit includes tubes containing nanofluid and paraffin containers in existence of MWCNT nanoparticles. Numerical simulation has been incorporated to investigate the impact of installing fins within the paraffin zone. The four mirrors with equal width have been utilized to concentrate the solar irradiation which leads to use of the whole solar spectrum. Laminar 3D flow within the cooling unit has been considered. The verification tests have been done in both views of melting modeling and PVT simulation. The grid independence procedure has been done and also, the best value of time step has been selected. Three configurations of fins (I-shape, short base arrow and long base arrow) have been implemented with four levels of Re (25, 750, 1250 and 1750). The maximum useful heat has been achieved for configuration of short base arrows. Dispersing MWCNT nanoparticles makes useful heat to increase about 9.58% for greatest inlet flow. The minimum temperature of the paraffin zone has been reported for short base arrows and augment of Re leads to reduction of temperature about 1.05%. Among scrutinized configurations, the maximum value of ηele belongs to the configuration of short base arrows and this function enhances with augment of Re about 3.72%.

【摘要翻译】

为了产生更大的电力和热量节省，在当前的研究中应用了集中PVT（光伏热）系统。该装置的热部分包括含有纳米流体的管和存在MWCNT纳米颗粒的石蜡容器。目前已经纳入了数值模拟来研究在石蜡区内安装翅片的影响。为使用整个太阳光谱，运用四个等宽的镜子来集中太阳辐射。并且考虑到了冷却装置内的层流 3D 流动。验证测试已在熔炼建模和PVT仿真的两个视图中完成。网格独立程序已经完成，并且已经选择了时间步长的最佳值。鳍的三种配置（I形，短基箭头和长基箭头）已经实现了四个级别的Re（25,750,1250和1750）。对于配置短基箭头，已达到最大有用热量。分散MWCNT纳米颗粒使有用的热量增加约9.58%，以获得最大的入口流量。据报道，短基箭头的石蜡区最低温度和Re的增加导致温度降低约1.05%。在仔细检查的配置中，最大值 η电子属于短基箭头的配置，此功能随着Re的增强约3.72%而增强。

【doi】

10.1016/j.scs.2023.104901

【作者信息】

无

论文32

A novel walkability index using google street view and deep learning

使用谷歌街景和深度学习的新型步行性指数

【摘要】

Despite its wide use across disciplines, the conventional walkability index has limited applicability in planning and design practice because it shows poor agreement with pedestrians’ subjective assessment, which is an important measure of pedestrian-friendliness. One of the key reasons is that the index largely ignores micro-level features that are important in describing walking behavior. To address this gap, we developed a new walkability index that encompasses both micro-level and macro-level attributes using Google Street View (GSV) data and computer vision algorithms. The outperformance of the new index is validated through its alignment with pedestrian-rated overall walking environment satisfaction. The findings of this study underscore the limitations of the Walk-score by revealing a significant disparity with walking environment satisfaction. The validation tests confirm that our new index is superior to the Walk-score because it provides comprehensive reflections of satisfaction. Our results suggest the need for a new walkability index that includes streetscapes as well as macro-level features. Overall, our new index provides urban planners and analysts with an improved metric to capture various built environmental features for planning practice.

【摘要翻译】

尽管传统步行性指数在跨学科中得到广泛使用，但由于它与行人的主观评估（行人友好性的重要衡量标准）的一致性较差，因此在规划和设计实践中的适用性有限。其中一个关键原因是该指数在很大程度上忽略了在描述步行行为方面很重要的微观特征。为了弥补这一差距，我们开发了一个新的步行性指数，该指数使用谷歌街景（GSV）数据和计算机视觉算法，涵盖了微观和宏观层面的属性。新指数的优异表现通过与行人评分的整体步行环境满意度保持一致来验证。这项研究的结果通过揭示与步行环境满意度的显著差异，强调了步行评分的局限性。验证测试证实，我们的新指数优于步行分数，因为它对满意度进行了全面反映。我们的研究结果表明，需要一个包括街景和宏观特征的新的步行性指数。总体而言，我们的新指数为城市规划师和分析师提供了一个改进的指标，以捕捉各种建筑环境特征以进行规划实践。

【doi】

10.1016/j.scs.2023.104896

【作者信息】

无

论文33

Slum and urban deprivation in compacted and peri-urban neighborhoods in sub-Saharan Africa

撒哈拉以南非洲紧凑社区和城郊社区的贫民窟和城市贫困

【摘要】

UN-Habitat estimates that 51.3% of the urban population in sub-Saharan Africa (SSA) resided in slums in 2020, and future projections indicate continued growth. However, limited information on the spatial distribution and evolution of slums in the region underestimates the challenges they present.This study investigates the use of urban morphology to map slums in 95 cities across Nigeria, Kenya, Ghana, and Malawi. The approach employed an unsupervised classification and a tree-based clustering framework, integrating morphological and socio-economic indicators, as well as comprehensive sampling points for slums.Our findings indicate that morphological clusters with compact, small buildings are indicative of a high prevalence of slums, with an accuracy rate of 83.6%. Moreover, these morphological slum clusters exhibit significant correlations with socio-economic indicators, exhibiting lower GDP andwealth index compared to neighbouring clusters. Notably, larger and older slums demonstrate improved economic well-being and enhanced infrastructures services.Our findings underscore the potential of utilizing urban morphology to comprehend the diversity and dynamics of urban slums and socioeconomic development. These results provide a foundation for large-scale identification of slums and urban deprivation, offering support for targeted solutions to address the challenges associated with slums in developing countries.

【摘要翻译】

联合国人居署估计，截止到2020年，撒哈拉以南非洲（SSA）51.3%的城市人口仍居住在贫民窟，而该数据在未来的预测中表明将继续增长。然而，关于该区域贫民窟的空间分布和演变的信息有限，使我们低估了贫民窟所带来的问题。本研究调查了尼日利亚、肯尼亚、加纳和马拉维 95 个城市使用城市形态学绘制贫民窟地图的情况。这一办法采用了无监督分类和基于树木的聚类框架，综合了形态和社会经济指标以及贫民窟的综合抽样点。研究结果表明，具有紧凑小型建筑物的形态集群表明贫民窟的高流行率，准确率为83.6%。此外，这些形态上的贫民窟群与社会经济指标密切相关，与邻近的集群相比，其国内生产总值和财富指数较低。值得注意的是，较大和较老的贫民窟的经济福祉有所改善，基础设施服务得到加强。研究结果强调了利用城市形态学来理解城市贫民窟和社会经济发展的多样性和动态的潜力。这些结果为大规模查明贫民窟和城市贫困提供了基础，为解决发展中国家贫民窟相关挑战的有针对性的解决方案提供了支持。

【doi】

10.1016/j.scs.2023.104863

【作者信息】

ChengxiuLi, 清华大学全球变化研究院，地球系统科学系，地球系统模拟教育部重点实验室

LeYu, 清华大学全球变化研究院，地球系统科学系，地球系统模拟教育部重点实验室

FrancisOloo,Ellasy GululeChimimba,OscarKambombe,MosesAsamoah,

Precious DapaOpoku, 清华大学全球变化研究院，地球系统科学系，地球系统模拟教育部重点实验室

Vincent WayugaOgweno j, DominicFawcett,

JinpyoHong, 清华大学计算机科学与技术系

XiangzhenDeng, 埃克塞特大学生命与环境科学学院

PengGong, 香港大学地理系、地球科学系及气候与碳中和研究所

JimWright

论文34

Towards a net-zero carbon economy: A sustainability performance assessment of innovative prefabricated construction methods for affordable housing in Southern Africa

迈向净零碳经济：南部非洲经济适用房创新预制建筑方法的可持续性绩效评估

【摘要】

Recently, efforts to mainstream sustainability principles into affordable housing projects through the adoption of modern methods of construction, like innovative prefabricated construction methods (IPCMs), have been observed. However, limited studies have evaluated the sustainability performance of IPCMs deployed to affordable housing projects in Southern Africa, where the delivery of sustainable affordable housing remains a regional imperative. This study bridges this gap by assessing the sustainability performance and index scores of six IPCM variants implemented on affordable housing projects. The study adopted a two-phased quasi-experimental research design. In the first phase, the technical specification, lifecycle energy and cost and actual performance of these variants under varying conditions pertaining to sustainability were assessed and compared. The Sustainable, Innovative, Affordable Housing (SIAH) framework was adjusted to enhance its utility for computing sustainability index scores using expert opinions. Afterwards, the experts computed the sustainability index score for each case using the adjusted SIAH framework. Subsequently, the Edge App and SimaPro were used to simulate the sustainability performance of these variants under varying conditions. The study's results indicate higher overall sustainability performance of IPCMs compared to conventional methods. Moreover, the research results proved that the monolithic IPCMs were more suitable for net-zero carbon buildings. The study highlights the SIAH framework's usefulness as an assessment tool for determining the sustainability performance of affordable housing projects and for successfully selecting optimum IPCMs to implement towards eliciting such performance. It is expected that this study's results will contribute towards advancing the SIAH agenda in Southern Africa.

【摘要翻译】

最近，人们努力通过采用现代建筑方法（如创新的预制建筑方法（IPCMs））将可持续性原则纳入经济适用房项目的主流。然而，只有部分研究评估了部署在南部非洲经济适用房项目中的IPCM的可持续性绩效。因此，在南部非洲，提供可持续的经济适用住房仍然是区域当务之急。本研究通过评估在经济适用房项目中实施的六个IPCM变体的可持续性绩效和指数得分来弥合这一差距。该研究采用了两阶段准实验研究设计。在第一阶段，评估和比较了这些变体在与可持续性相关的不同条件下的技术规格、生命周期能源和成本以及实际性能。对可持续、创新、经济适用房（SIAH）框架进行了调整，以增强其利用专家意见计算可持续性指数分数的效用。之后，专家们使用调整后的SIAH框架计算了每个案例的可持续性指数得分。随后，使用Edge App和SimaPro来模拟这些变体在不同条件下的可持续性表现。研究结果表明，与传统方法相比，IPCMs的整体可持续性绩效更高。此外，研究结果证明，整体式IPCMs更适合净零碳建筑。该研究强调了SIAH框架作为评估工具的有用性，用于确定经济适用房项目的可持续性绩效，并成功选择最佳IPCM以实施以引发此类绩效。预计这项研究的结果将有助于推进南部非洲的SIAH活动议程。

【doi】

10.1016/j.scs.2023.104907

【作者信息】

无