Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Permanent URI for this collectionhttps://hdl.handle.net/11147/7148
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Conference Object Material Optimisation for Future Double Skin Façade System Design(Institute of Physics, 2025) Unluturk, M.S.; Kazanasmaz, Z.T.; Ekici, B.; Göksal Özbalta, T.G.Façades have a significant impact on energy consumption in interiors. Designers aimed to reduce energy consumption by developing different façade systems. Double Skin Façade (DSF) aims to increase thermal and ventilation performance in the interior. The depth of the cavity gap between the two façade layers with air inside may adversely affect indoor daylight performance. In addition, studies in the literature indicate that this façade system shows optimum performance in cold climates. With the right design decisions, the DSF system can provide optimum performance in hot climates. In building designs with DSF systems in these climate zones, daylight and energy simulations can make the right design decisions. However, the climate crisis (CC) is increasing air temperatures and sunshine hours in hot and arid climate zones. Simulations are based on current climate data, and the recommendations obtained may not show optimum performance in the future. The study aims to propose an educational building model with a DSF system that will provide optimum visual comfort for 50 years in the Mediterranean climate type (CSA). Meteonorm has created weather scenarios for Izmir for 2050 and 2080. Opossum and Galapagos carried out the optimisation process using this data. The study proposes models that will perform optimally in Izmir for 50 years. © Published under licence by IOP Publishing Ltd.Conference Object Design of Adaptive Shading Device with Rigid Origami Technique: Improving Outdoor Thermal Comfort on Pathways of University Campus(Institute of Physics, 2025) Dağlier, Y.; Ekici, B.; Korkmaz, K.Since urbanization emerged with consequences for the built environment, shadows have played a key role in outdoor comfort. In hot climates, shadow has become a vital element in public spaces as it significantly affects social interaction on various occasions, such as university campus areas. The current state of the art shows that the role of shadings in outdoor environments is crucial to increasing pedestrian comfort and supporting overall well-being. While trees and canopies are commonly used for shading, their applicability is sometimes limited in pedestrian pathways. For example, the Izmir Institute of Technology (IZTECH) campus copes with outdoor discomfort during the extremely hot summer days. Due to the changing environmental conditions, static shading devices offer effective shadows only at specific times. This creates a necessity to design shading devices that can rotate and fold to mitigate temperatures more effectively and increase outdoor thermal comfort. A parametric shading model was developed using Grasshopper and Kangaroo Physics®, and its effectiveness was analyzed using Building Performance Simulation (BPS) tools. The research integrates heuristic optimization techniques to enhance shading performance, including Galapagos (Genetic Algorithm) and Opossum (RBF-opt and CMA-ES). Results indicate that the proposed kinetic shading devices reduced the universal thermal climate index (UTCI) by approximately 20% during peak sunlight hours. These findings suggest that adaptive shading strategies efficiently improve outdoor thermal comfort in urban public spaces. © 2025 Published under licence by IOP Publishing Ltd.Conference Object Energy-Efficient Urban Design Proposal in Urban Heat Island Formation: The Case of CSA Climate(Institute of Physics, 2025) Unluturk, I.U.; Yavuz, E.; Unluturk, M.S.; Akgun, B.Nowadays, unplanned construction resulting from urban growth and population increase reduces the resilience of cities and their historical texture and increases the need for buildings for housing in cities. This situation, which increases the density/height of city buildings, increases the surface temperature and reduces the green tissue, causes urban heat island. In this study, the Dumlupinar neighbourhood of Balıkesir, which attracts attention with its historical texture and where new buildings are designed in certain parts today, will be discussed. First, the areas with traditional and new buildings in the region are modelled parametrically in the Rhino/Grasshopper interface, obtained and compared through Dragonfly software and an urban prototype is created. However, in the computational design algorithms to be performed, not only today's weather scenario but also the weather scenario of 2050 was used. Models were created to minimise the urban heat island in 2050 climate conditions. This urban prototype is a proposal for sustainable cities to be built in cities in CSA climate types (Mediterranean climate). This proposal will guide municipalities in designing energy-efficient and carbon-neutral cities using the urban model of the urban heat island effect. © 2025 Institute of Physics Publishing. All rights reserved.Conference Object Building-Level Circularity Assessment in Urban Regeneration: A Mediterranean Case Study(Institute of Physics, 2025) Aral, D.; Khadim, N.; Kayaçetin, N.C.; Durmus Arsan, Z.D.As the urgency to operate within planetary boundaries intensifies, adopting the circular economy (CE) in the built environment has become essential to mitigate environmental emissions, resource depletion, and waste generation. However, CE implementation at the building level remains fragmented in rapidly urbanizing lower-income countries. There is a pressing need for robust assessment to quantify the current level of circularity and identify context-specific opportunities for improvement. This study aims to evaluate the circularity potential of a residential building block in an urban regeneration project in Izmir, Türkiye, using the Whole Building Circularity Indicator (WBCI) applied to assess circularity across key lifecycle stages and system levels. The results indicate a WBCI score of 0.17 (on a scale of 1 fully circular to 0 fully linear) and a moderate flexibility of 0.70. This reflects a linear building profile driven by virgin materials, mass-intensive construction, limited adaptability, disassembly, and low end-of-life recovery potential. The structure layer presents the lowest system circularity score of 0.11. The study contributes to the literature on building circularity assessment by highlighting the critical role of the assessment framework in guiding the built environment toward more resource-efficient and sustainable outcomes in Mediterranean contexts, and offers practical insights to inform policy development. © Published under licence by IOP Publishing Ltd.Article The Spatial Patterns of Regional Employment in Europe as a Measure of Economic Resilience in Recession Periods(Center for European Regional and Local Studies of the University of Warsaw (EUROREG), 2025) Değerli Çifçi, B.; Duran, H.E.Empirical literature in the field of regional resilience has most commonly concentrated on a unique economic shock. However, the existing studies have fallen short of comparing the resilience patterns across different crises. The purpose of this study is to investigate the geographical persistence of regional resilience across different recessionary shocks, namely: 1) the 2008–2010 Global Financial Crisis; 2) the 2011–2013 Sovereign Debt Crisis; 3) the 2019–2020 COVID-19 pandemic. The study covers 202 European Nuts II regions. It applied a range of empirical tools such as Markovian Transition Probability Matrices, Global Moran’s and Local Moran’s, Kolmogorov-Smirnov tests, Kendal’s tau, and Spearman’s correlation coefficient, as well as illustrative maps. As an outcome, several important conclusions are reached. First, the spatial pattern of resilience is not stable/persistent over time, as the three recessions tend to hit different places at different crisis times. Second, in general, Southern European regions are the most consistently fragile/vulnerable regions. Third, spatial patterns of resilience are weakly correlated across the different recessions. From the policy standpoint, it is understood that dealing with employment resilience is more difficult than previously thought by the policymakers. Since the resilience pattern is not stable spatially, each crisis should be evaluated separately and no generic policy rules can be formulated to foster the resilience. Thus, one can understand that although the sources of the crises are different, there may be some geographies that are structurally suffering the recessions which necessitate a consideration of the reasons and the formulation of the related policies. © Authors 2025.Conference Object A Comparative Study of Attention-Augmented YOLO Architectures for Defect Detection in Fused Deposition Modelling(Institute of Electrical and Electronics Engineers Inc., 2025) Cezayirli, H.; Tetik, H.; Dede, M.I.C.; Phone, W.L.; Alkan, B.Additive manufacturing (AM), particularly fused deposition modelling (FDM), facilitates the fabrication of complex geometries with increasing flexibility and efficiency. Ensuring consistent print quality in FDM processes necessitates the development of accurate defect detection mechanisms. Attention-augmented YOLO (You Only Look Once) models have emerged as a promising solution for addressing this challenge. In this study, we systematically benchmark and evaluate the performance of YOLO architectures enhanced with attention mechanisms within the context of FDM 3D printing applications. The models were trained and evaluated using representative defect datasets. The attention-augmented models demonstrate improved detection performance. © 2025 IEEE.Article Rhythmanalysis of Istanbul Ayasofya's (re)mosquification During the COVID-19 Pandemic: A Diachronic Overview(Routledge Journals, Taylor & Francis Ltd, 2025) Akture, Zeynep; Kazanasmaz, Zehra TugceInauguration of the Grand Mosque of Ayasofya, Istanbul, in 2020 was among the cultural heritage-related magnet events of the COVID-19 pandemic period. This essay focuses on the impacts of function change on the monument's spatial experience, by tracing a continuity of change in its everyday life and use in a continuously changing urban context, through comparatively minor physical interventions starting with the 'necessary minimum' to its 'acupuncture points', as was done during its earlier mosquification and museumification, both of which (were) initiated (by) structural transformations in the longue dur & eacute;e. Following Henri Lefebvre's argument on spatiality of politics and history, and adopting his rhythmanalysis tool, significance of the recent function change is argued to reside in the resulting spatial experience that is characterised by spatiotemporally alternating and/or overlapping political, religious, and tourist 'rituals' that are conditioned by and conditioning longer-term structural changes. Concluding observations target future research along the proposed trajectory.Conference Object Measuring the Size of Change Requests in Microservice-Based Software Projects(Springer Science and Business Media Deutschland GmbH, 2026) Yenel, M.; Ünlu, H.; Demirors, O.Accurately estimating the effort required for implementing change requests remains a critical challenge in software engineering, especially in microservice-based software architectures (MSSA). Traditional functional size measurement methods often fail to capture the distinct characteristics of MSSAs. To address this limitation, we propose a change size measurement method based on MicroM, a size measurement approach specifically developed for MSSAs. The proposed method counts added, deleted, and modified events across functional, architectural, and algorithmic levels, and includes the number of affected initial requirements. We conducted an exploratory case study with 18 change requests and built four regression-based effort estimation models. The results show that combining event counts with the number of affected requirements improves estimation accuracy. Our method provides a more precise and context-aware way to estimate change-related effort in MSSA projects. © 2025 Elsevier B.V., All rights reserved.Article Citation - WoS: 1Citation - Scopus: 1Traditional Water Harvesting Systems in Climate Change Adaptation: Insights From a Semi-Arid Mediterranean Village(Middle East Technical Univ, 2025) Gercek, Deniz; Yuceer, Hulya; Gonulal, Yasemin Ozcan; Ustuk, Ozan; Uzelli, Taygun; Guler, Selen; Baba, AlperTraditional water harvesting systems (WHS), developed over centuries by past civilizations, have long played a crucial role in addressing water scarcity in semi-arid regions. Although these systems have been largely neglected with the expansion of modern water infrastructure, they remain a valuable heritage containing significant knowledge and practices that are still relevant today, particularly in overcoming water management challenges in the face of climate change. Although traditional WHSs have been studied across various regions, their forms and functions vary significantly due to unique climatic, geological, and cultural conditions. In the Mediterranean context, small-scale WHSs have received comparatively limited attention-particularly studies that integrate both their revitalization for contemporary use and their historical and cultural significance. This study aims to help bridge that gap and contribute the existing literature by focusing on the WHSs in Barbaros, a semi-arid village on the Aegean coast of Turkey. Barbaros is particularly unique due to its special geological conditions, as the porous soil makes water retention difficult, which adds to the importance of traditional WHSs. In this context, the main objective of this research is to comprehensively assess these systems, by considering the area's topography, geological features, WHS construction techniques, and local knowledge transmitted across generations. This multidisciplinary approach, combining a literature review, field observations, expert surveys and interviews with long-time residents, enables a comprehensive analysis of the typologies, current state and socio-cultural evolution of these systems. A thorough understanding of these systems is essential to assess their resilience and relevance for climate change adaptation, especially with regard to drought management. The study concludes that, despite their partial abandonment, the traditional WHSs in Barbaros offer valuable insights into sustainable water management and demonstrate their potential as practical models for addressing today's water challenges.Article Advancements in Oil-Water Separation: the Role of Molybdenum and Tungsten Disulfide as Cutting-Edge 2D Nanomaterials(Elsevier, 2025) Recepoglu, Yasar Kemal; Goren, Ayseguel YagmurThis article reviews recent strides in synthesizing, functionalizing, and utilizing molybdenum disulfide (MoS2) and tungsten disulfide (WS2) nanomaterials owing to their exceptional wetting properties, which facilitate oilwater separation. Among various materials explored, they have also emerged as particularly promising candidates due to their high surface area, tunable surface chemistry, and unique layered structure. The twodimensional (2D) morphology offers abundant active sites, enhanced interaction with water molecules, and the ability to engineer surface wettability at the nanoscale, all of which are highly advantageous for efficient oilwater separation. Distinct separation mechanisms, performance benchmarks, and potential integration into practical separation setups were meticulously surveyed and analyzed. Furthermore, to elucidate the superiority of MoS2 and WS2 2D nanomaterials over alternative methodologies for oil-water separation, we comprehensively examined other techniques, including membrane processes, electrocoagulation, adsorption with modified materials, and biological methods. For instance, the high membrane, operational, and maintenance costs, scaling, fouling, expensive production steps, high energy consumption, and complex operations are significant limitations of other processes for oil-water separation. On the other hand, the MoS2 and WS2 nanomaterials provide sustainable and effective oil-water separation performance compared to other processes owing to their unique properties, such as superior reusability, high separation efficiency, excellent hydrophobicity (water-repelling) and oleophilicity (oil-attracting) features, significant chemical and thermal stability, and enhanced photocatalytic properties. This review showed that the oil-water separation efficiency of the MoS2 and WS2-based materials was 70-100 %. The highest oil-water separation efficiency of 100 % is observed using cellulose acetate -MoS2 fibrous sponge from a toluene-water mixture at a pH of 8. Nevertheless, while MoS2 and WS2 nanomaterials promise oil-water separation owing to their unique properties, their limitations, such as cost, scalability, environmental concerns, agglomeration, regeneration challenges, and potential toxicity, must be carefully addressed. Consequently, further research and development are necessary to overcome these hurdles and fully realize their potential in practical applications.