| DOI: | 10.1016/j.watres.2018.06.048
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| Scopus记录号: | 2-s2.0-85049305060
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| 论文题名: | Topological attributes of network resilience: A study in water distribution systems |
| 作者: | Meng F.; Fu G.; Farmani R.; Sweetapple C.; Butler D.
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| 刊名: | Water Research
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| ISSN: | 431354
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| 出版年: | 2018
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| 卷: | 143 | | 起始页码: | 376
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| 结束页码: | 386
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| 语种: | 英语
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| 英文关键词: | Correlation
; Graph theory
; Network generation
; Resilience
; Stress-strain test
; Topology
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| Scopus关键词: | Correlation methods
; Efficiency
; Topology
; Water distribution systems
; Water management
; Clustering coefficient
; Mathematical abstraction
; Network generation
; Resilience
; Spatial and temporal scale
; Stress-strain tests
; Topological features
; Water distribution system (WDSs)
; Graph theory
; correlation
; distribution system
; mathematical theory
; network analysis
; resilience
; stress-strain relationship
; topology
; water supply
; absorption
; Article
; conceptual framework
; ecosystem resilience
; metric system
; priority journal
; stress strain relationship
; water supply
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| 英文摘要: | Resilience has been increasingly pursued in the management of water distribution systems (WDSs) such that a system can adapt to and rapidly recover from potential failures in face of a deep uncertain and unpredictable future. Topology has been assumed to have a great impact on resilience of WDSs, and is the basis of many studies on assessing and building resilience. However, this fundamental assumption has not been justified and requires investigation. To address this, a novel framework for mapping between resilience performance and network topological attributes is proposed. It is applied to WDSs here but can be adaptable to other network systems. In the framework, resilience is comprehensively assessed using stress-strain tests which measure system performance on six metrics corresponding to system resistance, absorption and restoration capacities. Six key topological attributes of WDSs (connectivity, efficiency, centrality, diversity, robustness and modularity) are studied by mathematical abstraction of WDSs as graphs and measured by eight statistical metrics in graph theory. The interplay between resilience and topological attributes is revealed by the correlations between their corresponding metrics, based on 85 WDSs with different sizes and topological features. Further, network variants from a single WDS are generated to uncover the value of topological attribute metrics in guiding the extension/rehabilitation design of WDSs towards resilience. Results show that only certain aspects of resilience performance, i.e. spatial and temporal scales of failure impacts, are strongly influenced by some (not all) topological attributes, i.e. network connectivity, efficiency, modularity and centrality. Metrics for describing the topological attributes of WDSs need to be carefully selected; for example, clustering coefficient is found to be weakly correlated with resilience performance compared to other metrics of network connectivity (due to the grid-like structures of WDSs). Topological attribute metrics alone are not sufficient to guide the design of resilient WDSs and key details such as the location of water sources also need to be considered. © 2018 The Authors |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/112559
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Centre for Water Systems, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, EX4 4QF, United Kingdom
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| Recommended Citation: | |
Meng F.,Fu G.,Farmani R.,et al. Topological attributes of network resilience: A study in water distribution systems[J]. Water Research,2018-01-01,143
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