Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7148

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  • Article
    Citation - WoS: 2
    Citation - Scopus: 2
    A Novel Vulnerability Index and Approach for Improving Road Network Vulnerability
    (Canadian Science Publishing, 2025) Dogaroglu, Bora; Pelin Çalişkanelli, S.
    A transportation network’s recovery depends on its vulnerability to disaster impacts and functionality restoration. This study proposes two novel indexes for comprehensively measuring the vulnerability of road networks: link vulnerability measurement and node vulnerability measurement. Analyses were conducted on a hypothetical road network using dynamic assignment in the PTV VISSIM microsimulation environment, and the network vulnerabilities were calculated using the proposed methods. The results were compared with those found in the literature. Additionally, a method was proposed to reduce the vulnerability of the road network, and the proposed approach was compared with the current situation. The results showed 13.09% and 14.83% improvements in the average link vulnerability and node vulnerability values, respectively. In terms of achieving a more balanced distribution of vulnerability across the system, improvements of 5.68% and 41.35% were observed in the standard deviations of the link vulnerability and node vulnerability values, respectively. © 2025 Elsevier B.V., All rights reserved.
  • Article
    New Rotating Coanda-Type Intake for Sediment-Laden Flows
    (Canadian Science Publishing, 2025) Hazar, O.; Civelek, S.; Sagir, C.A.; Elçi, S.
    Tyrolean and Coanda types of water intake structures are the most widely preferred bottom intake structures used to divert water from channels and river systems for various purposes, such as energy production, irrigation, and domestic use. Estimation of withdrawal water and filtered sediment amounts is important to obtain maximum efficiency from an intake structure. The purpose of this study is to numerically analyze a newly patented rotating Coanda-type intake system to achieve the highest water capturing efficiency and sediment release efficiency. The newly patented system (patent No.: TR2021011306B) presented here incorporates Coanda screens with variable void ratios, autonomously selected based on the sediment characteristics of the inflowing water. The process of selecting and positioning the appropriate screen is fully automated, requiring no human intervention. The system rotates under motor control to place the suitable screen at the operational point based on the specific requirements of the incoming sediment-laden flow. © 2025 The Author(s).