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Author

Shiyao Zhu

Other affiliations: University of British Columbia
Bio: Shiyao Zhu is an academic researcher from Southeast University. The author has contributed to research in topics: Resilience (network) & Smart city. The author has an hindex of 6, co-authored 9 publications receiving 90 citations. Previous affiliations of Shiyao Zhu include University of British Columbia.

Papers
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Journal ArticleDOI
TL;DR: Wang et al. as discussed by the authors provided a MCDM approach to assess and rank the resilience of 187 smart cities in China and found that the overall resilience of smart cities is at a relatively low level.

117 citations

Journal ArticleDOI
TL;DR: In this article, a prediction model was established by system dynamics, including direct CECI, indirect and operational CECIs, to accurately predict the peak of the peak carbon emission of the construction industry in China.
Abstract: China has become the world's largest carbon emitter, and its commitment to peak carbon emissions by 2030 is important for global development. The construction industry is one of China's biggest carbon emitters, and its peak has a direct impact on China's carbon commitment. Due to the regional heterogeneity of different provinces, the carbon emission of construction industry (CECI) at provincial level is of unique significance. To accurately predict the peak of provincial CECI, a prediction model was established by system dynamics, including direct CECI, indirect CECI and operational CECI. Taking Jiangsu province as an example, the single and multiple scenario settings with increasing R&D investment, promoting energy-saving buildings and implementing carbon trading from 2016 to 2030 was carried out, indicating that: 1) Without any carbon emission reduction measures, the CECI would maintain an annual growth rate of 5.58% to reach 530.61 million tons by 2030, and the indirect and operational CECI account for the majority of total with an average annual growth rate of 8.02% and 2.79% respectively. 2) All three measures had good carbon reduction effects, which would reduce the total CECI by 26.46% 21.68% and 10.68% respectively by 2030, but only when implemented simultaneously can CECI peak before 2030, 308.77 million tons at 2029. In the end, three policy implications was put forward. The framework presented in this paper provided a basis for the prediction of peak CECI in a province or state, which can help policy makers plan a more reasonable low-carbon development roadmap.

60 citations

Journal ArticleDOI
TL;DR: Wang et al. as mentioned in this paper proposed a holistic evaluation framework for evaluating urban flood resilience with VIKOR and Grey Relational Analysis (GRA) method, which consists of indicators of resilience, coping, recovery and adaptation capacity of resilience for three stages of the flood disaster cycle, namely pre, during and post-flood.
Abstract: Rapid urbanization and climate change have increased the risk of urban flooding, causing massive infrastructure and human losses. The concept of resilience proposes new solutions to manage flood disaster. An urban flood resilience evaluation framework considering the flood disaster cycle of actual historic flood event and objective physical-socio-economic status is necessary for future flood mitigation. This paper proposes a holistic evaluation framework for evaluating urban flood resilience with VIKOR and Grey Relational Analysis (GRA) method. The proposed framework consists of indicators of resistance, coping, recovery and adaptation capacity of resilience for three stages of the flood disaster cycle, namely pre, during and post-flood. The framework has been applied to Yangtze River Delta (YRD) consisting 27 cities in China. Following a rigorous analysis, the cities are ranked and mapped, among which Nanjing stands out to be the first, whereas the entire region presents a moderate level of urban flood resilience varying from city to city. The detailed comparison with sensitivity analysis of resilience at regional, provincial and city level suggests a better resilience in pre-flood stage than post-flood stage. Finally, practical recommendations to regional and local level are provided for further flood mitigation and resilience improvement. The proposed framework is generalizable and useful to develop flood related standards, establish benchmarks, perform evaluation at regional, provincial and city levels across China and other parts of the world.

36 citations

Journal ArticleDOI
TL;DR: It is indicated that SC and RC are both important for urban planning and can be complementary to each other through proper design and governance, which implies the need for building a resilient smart city (RSC).
Abstract: Smart city (SC) and resilient city (RC) have been studied and practiced over the years in terms of the increasing urban problems and disasters. However, there is a large overlap between their meanings and relationships. With an increasing concern for both SC and RC in urban development and hazard mitigation, a review was conducted to explore the differences and connections between SC and RC with scientometric analysis. There are far more literatures about SC than RC, and very few papers discuss SC and RC together. The research trend, category, and hotspots from research clusters are illustrated and compared. Major differences are discussed from their objectives, driving force, current research focus, and criticism. The literatures both related to SC and RC are used to explore their connections, which are very limited. The results revealed that the RC's impact on SC are positive from physical, social, and environmental aspects, while SC's impacts on RC could be both positive and negative from the above three aspects. It is indicated that SC and RC are both important for urban planning and can be complementary to each other through proper design and governance, which implies the need for building a resilient smart city (RSC).

27 citations

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TL;DR: Wang et al. as discussed by the authors built a framework to assess the relative performances of multiple neighborhood renewal projects through a hybrid AHP-TOPSIS method, and a case study in Nanjing, China was used to show how this framework could be applied to decision-making in order to pursue sustainable neighborhood renewal.
Abstract: With the rapid development of urbanization worldwide, there is a large volume of neighborhoods that need to be renewed with various problems such as poor building performance, few public facilities, congested road traffic, unequal living standards, disappearing community culture, and deprived environments. Performance evaluations are considered to be useful tools for ensuring the outcomes of sustainable renewal. Although many research works have assessed the performances of urban renewal projects, evaluations, especially for neighborhood renewal projects, are often overlooked. Besides, it is also hard to find a general standard that is suitable for evaluating the performance of any neighborhood renewal project with a lack of related regulations or codes. Thus, this paper intends to build a framework to assess the relative performances of multiple neighborhood renewal projects through a hybrid AHP-TOPSIS method. A case study in Nanjing, China, is used to show how this framework could be applied to decision-making in order to pursue sustainable neighborhood renewal. The results are expected to provide references for sustainable renewal in each neighborhood. Suggestions related to the findings are proposed to further improve the performances of neighborhood renewal projects, such as establishing a multiple principle–agent framework, providing a sustainable funding system from both the public and private sector, and implementing multiprogram management measures.

27 citations


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01 Jan 2020
TL;DR: Prolonged viral shedding provides the rationale for a strategy of isolation of infected patients and optimal antiviral interventions in the future.
Abstract: Summary Background Since December, 2019, Wuhan, China, has experienced an outbreak of coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Epidemiological and clinical characteristics of patients with COVID-19 have been reported but risk factors for mortality and a detailed clinical course of illness, including viral shedding, have not been well described. Methods In this retrospective, multicentre cohort study, we included all adult inpatients (≥18 years old) with laboratory-confirmed COVID-19 from Jinyintan Hospital and Wuhan Pulmonary Hospital (Wuhan, China) who had been discharged or had died by Jan 31, 2020. Demographic, clinical, treatment, and laboratory data, including serial samples for viral RNA detection, were extracted from electronic medical records and compared between survivors and non-survivors. We used univariable and multivariable logistic regression methods to explore the risk factors associated with in-hospital death. Findings 191 patients (135 from Jinyintan Hospital and 56 from Wuhan Pulmonary Hospital) were included in this study, of whom 137 were discharged and 54 died in hospital. 91 (48%) patients had a comorbidity, with hypertension being the most common (58 [30%] patients), followed by diabetes (36 [19%] patients) and coronary heart disease (15 [8%] patients). Multivariable regression showed increasing odds of in-hospital death associated with older age (odds ratio 1·10, 95% CI 1·03–1·17, per year increase; p=0·0043), higher Sequential Organ Failure Assessment (SOFA) score (5·65, 2·61–12·23; p Interpretation The potential risk factors of older age, high SOFA score, and d-dimer greater than 1 μg/mL could help clinicians to identify patients with poor prognosis at an early stage. Prolonged viral shedding provides the rationale for a strategy of isolation of infected patients and optimal antiviral interventions in the future. Funding Chinese Academy of Medical Sciences Innovation Fund for Medical Sciences; National Science Grant for Distinguished Young Scholars; National Key Research and Development Program of China; The Beijing Science and Technology Project; and Major Projects of National Science and Technology on New Drug Creation and Development.

4,408 citations

Journal ArticleDOI
TL;DR: The findings highlight that although the techno driven approach may be more productive to identify, isolate and quarantine infected individuals, it also results in the suppression and censoring the citizen views.

175 citations

Journal ArticleDOI
TL;DR: A systematic review of the recent literature concerned with new ‘smart city’ security technologies aims to investigate to what extent these new interventions correspond with traditional functions of security interventions and proposes three clear categories to categorise security interventions in smart cities.

127 citations

Journal ArticleDOI
TL;DR: The present study is the first study to integrate GIS, BWM, and G-MAROCS methods for sustainable landfill location selection problem for health-care waste, and investigates a real case of the municipality of Hamedan, Iran to show the applicability of the developed methodology for urban planning problems.

88 citations

Journal ArticleDOI
TL;DR: Wang et al. as mentioned in this paper examined the influence of smart city construction on urban green total factor productivity (GTFP), explores the influence mechanism and further investigates the heterogeneous influence among the factors of urban scale, human capital and financial development, conducting a quasi-natural experiment based on the first batch of pilot smart city in China and using panel data of 174 prefecture level cities over the period of 2005−2016.

85 citations