WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/20.500.11779/256

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Now showing 1 - 20 of 37

Citation - WoS: 1
Citation - Scopus: 1
A Simplified Approach for Site-Specific Design Spectrum
(2018) Tönük, Gökçe; Kurtuluş, Aslı; Ansal, Atilla
The design acceleration spectrum requires site investigations and site-response analyses in accordance with the local seismic hazard. The variability in earthquake source and path effects may be considered using a large number of acceleration records compatible with the earthquake hazard. An important step is the selection and scaling of input acceleration records. Likewise, a large number of soil profiles need to be considered to account for the variability of site conditions. One option is to use Monte Carlo simulations with respect to layer thickness and shear wave velocity profiles to account for the variability of the site factors. The local seismic hazard analysis yields a uniform hazard acceleration spectrum on the bedrock outcrop. Site-specific response analyses also need to produce a uniform hazard acceleration spectrum on the ground surface. A simplified approach is proposed to define acceleration design spectrum on the ground surface that may be considered a uniform hazard spectrum.
A Time for Solidarity: Rethinking the Architectural Establishment in the Age of Covid-19
(Intellect, 2022) Yücel, Şebnem
...
Citation - Scopus: 2
AI-Driven Digital Soil Mapping: Leveraging Generative AI, Ensemble Learning and Geospatial Technologies for Data-Scarce Regions
(Springer Science and Business Media Deutschland GmbH, 2025) Drias, Yassine; Drias, Habiba; Belkadi, Widad Hassina; Cakar, Tuna; Abdelhamid, Zakaria; Bensemmane, Riad Yacine
This study presents a methodology for generating highresolution digital soil maps by integrating artificial intelligence (AI) with geospatial technologies. The research begins with comprehensive data collection and the extraction of relevant soil properties with the help of generative AI. To improve predictive accuracy, ensemble learning algorithms were employed due to their ability to capture complex relationships within soil characteristics. Additionally, a structured preprocessing pipeline was developed to refine and standardize the collected soil data, ensuring its suitability for modeling. The model's performance was evaluated using spatial cross-validation techniques to identify the most effective predictive approach. To validate the proposed methodology, experiments were conducted in northern Algeria, a region characterized by diverse landscapes ranging from arid zones to fertile plains. The results demonstrate the potential of AI-driven approaches to enhance soil mapping, particularly in regions where high-quality and up-to-date soil data are limited. This study underscores the efficacy of AI and geospatial technologies in advancing precision agriculture and land management.
Citation - WoS: 54
Citation - Scopus: 64
An Assessment of the Performance of Impedance Tube Method
(Institute of Noise Control Engineering, 2014) Hasan Körük
The impedance tube method is widely used for measuring sound absorption (or reflection) coefficients of acoustic materials as a function of frequency. However, the sound absorption coefficients obtained using the impedance tube method may have some variations due to the dimensions (limits) of an impedance tube, sample preparation and sample mounting. This paper assesses the performance of the two-microphone impedance tube method as a function of frequency for different tube dimensions and materials and presents suggestions for increasing the reliability and repeatability of impedance tube measurements. First, after summarizing a systematic way for measuring acoustic transfer functions, sound absorption coefficients of a variety of materials ranging from conventional absorbing acoustic materials to samples with thin films are measured using two tubes with different tube diameter and microphone spacing. Uncertainty of sound absorption coefficients for various materials is discussed, and the frequency limits of impedance tubes are assessed. Then, a method for minimizing uncertainty due to sample mounting is proposed and the main findings are discussed.
Citation - WoS: 1
Citation - Scopus: 2
An Overview on the Structural Monitoring, Assessment and Retrofitting of Historical Structures With a Focus on 13th Century Monuments
(Springer international Publishing Ag, 2024) Ilki, Alper; Inci, Pinar; Halici, Omer F.; Demir, Cem; Comert, Mustafa; Kuran, Fikret
Monumental historical structures affirm natural and cultural identity and hence they should be transmitted to future generations. The protection and preservation of these structures against aging and natural hazards, particularly seismic actions, requires a comprehensive approach including diagnosis of the present condition of the structure and enhancement of structural capacity for disaster mitigation, if necessary. It is obvious that due to their historical values, any attempt towards the preservation of the monumental historical structures must be carried out with respect to the principles of integrity and authenticity. In this study, the structural performance assessment procedures, implementation of structural health monitoring systems and seismic strengthening strategies are discussed and described with reference to 13th-century monumental historical structures in Turkiye. The structural engineering aspects of recent activities for the restoration and preservation of the Great Mosque and Hospital of Divrigi (a world heritage listed structure) and Sivas Ulu Cami (Mosque) Minaret are briefly presented. In light of the structural analysis and monitoring results, recommendations for interventions to these monumental structures are outlined.
Citation - WoS: 1
Art Museums and the Middle East: a Contested Territory
(Intellect, 2020) Yücel, Şebnem
The Architectural Spotlight section addresses recent projects, debates and events that shape the architectural discourse and practice in Muslim-majority countries as well as in diasporic Muslim communities. In this section, contemporary architectural concerns in diverse cultural, economic, and social conditions are discussed to move toward the varied meanings of 'architecture'in recent geographies of Islam in its global dimensions.
Citation - WoS: 1
Citation - Scopus: 1
Building a Community Through a Design Build Studio Program
(Springer international Publishing Ag, 2025) Inceoglu, Arda
This paper aims to provide a comprehensive and critical assessment of the outcomes stemming from a Design-Build program, a pedagogical approach widely adopted by educational institutions worldwide. These programs are instrumental in equipping students with vital practical skills, often unattainable within the confines of a conventional studio environment. While the objectives of this program align with those of similar initiatives in various educational institutions, an examination reveals an unexpected and substantial outcome. Beyond its primary goals, the Design-Build program has played an integral role in instilling a culture of collaboration and camaraderie within the school, thereby significantly contributing to the overall success of its architectural education. All stages of the program consist of collaborative processes, instilling from an early age the importance of working together by helping each other than individual competition.
Citation - WoS: 2
Commemorations of Sinan: Creating a National Hero in Turkey in the 1930s
(Intellect, 2023) Sezgin, Ahmet
Sinan (d.1588) is the most renowned architect of the Ottoman Empire. His buildings, located throughout the eastern Mediterranean, were central to a dynastic and religious architectural heritage that was inherited by a modern and secular Turkish nation state, established in 1923. This article examines how Sinan was refashioned as a national hero in the early decades of the Republic. It focuses on commemorations of Sinan and their major venue: his Süleymaniye Mosque in Istanbul. In my analysis of these commemorations, I draw on a wide and diverse array of primary source materials, including written, photographic, artistic, and other visual materials from the 1930s and 1940s that are located in official, semi-official, and other collections. By doing so, this article reveals how the variety of nationalist approaches to Sinan and his architecture coexisted and competed.
Citation - WoS: 1
Citation - Scopus: 2
Compaction and Shear Strength Behavior of Fresh and Aged Basic Oxygen Furnace (bof) Steel Slag
(2016) Yıldırım, İrem Zeynep; Prezzi, Monica
Use of industrial by-products in geotechnical engineering projects, such as in the construction of highway embankments, is advantageous because large volumes of these materials can be utilized. Basic oxygen furnace (BOF) steel slag is one of these industrial by-products. This paper provides a brief background on the characteristics of BOF steel slag and presents the results of a series of laboratory tests (grain-size analysis, maximum and minimum dry density, compaction, large-scale direct shear tests (LDS) and isotropically consolidated-drained triaxial compression (CID TX) performed on fresh and aged BOF steel slag generated from an Indiana steel plant. BOF steel slag samples from three different batches of production were tested, which allowed an evaluation of both aging processes and the effect of changes in gradation on the mechanical properties. The BOF steel slag tested in this study contained sand-size particles with varying percentages of gravel-and silt-size fractions. The moisture-density relationships for BOF steel slag were irregular with two peaks. Based on the LDS and CID TX test results, the BOF steel slag exhibited superior strength and stiffness characteristics than conventional geo-materials. The mechanical properties of fresh and aged BOF steel slag are discussed in the context of its use in geotechnical applications.
Contesting Labels: Revisiting Old Questionnaires
(Cambridge University Press, 2020) Ada, Serhan; Yücel, Şebnem
As a response to several questionnaires, manifestos, interviews, and letters that were included in the book Modern Art in the Arab World: Primary Documents, this article carries out a new questionnaire with seven artists form various backgrounds and geographies, in an attempt to update and re-question some of the issues that were highlighted in the collected essays. The questionnaire includes three questions, each focusing on a different issue. The first issue considers the validity of the term “Arab Art,” the second tries to identify the main dynamics of contemporary artistic production, and the last one questions the relation of contemporary production of arts to geography and history. The following interviews have been edited for consistency and clarity.
Drawing the Line: on the Impossibility of Utopia
(Intellect Ltd, 2024) Yücel, Şebnem
When Dutch artist Joep van Lieshout ventured into developing a zero -carbon, no -waste city in 2005, there were no such examples in the world. His artistic vision, complete with a full set of drawings and models, predated any real attempts to build one.1 Van Lieshout, a controversial artist known for his independent state in Rotterdam harbour (AVL-Ville), has 'dissected systems' in his work, be they systems of society or of the human body.2 While dissecting systems, he has often turned to design and architecture, creating provocative work that blurs the line between reality and fantasy.3 His 2005 zero -carbon city project was no exception.4 Van Lieshout's city was a compact one, covering approximately fifty square kilometres. With a set of calculations, models, drawings, paintings, and even objects, the project was complete. A business plan that accompanied the design outlined a program to maintain the city's profitability, an annual profit of 7.5 billion Euro to be exact.5 The project's description referenced some of the important keywords for urban design today, including zero -carbon design, efficiency, and profitability, ultimately suggesting a responsible, ethical, and a desired future. This was not exactly the case, however. This was - as he labelled it - a 'Slave City'. As the name suggests, Van Lieshout's Slave City would be populated by worker slaves who would be divided into four categories:6 healthy and suitable for work (6 per cent of the population), healthy and unsuitable for work (16 per cent), unhealthy and unsuitable for work (29 per cent) and the majority, unhealthy, unsuitable for work, and tasteless (49 per cent).7 Based on these
Citation - WoS: 2
Citation - Scopus: 1
Eaf Ladle Steel Slag as a Geo-Material: Compaction and Shear Strength Characteristics
(2018) Yıldırım, İrem Zeynep; Prezzi, Monica
The numerous issues associated with the excess steel slag that is disposed of in landfills every year can be reduced by using it as a geo-material. This paper provides the results of laboratory tests (i.e., sieve, hydrometer, specific gravity, compaction, compaction-particle degradation, and large-scale direct shear with a box size of 30.5 x 30.5 x 20 cm) performed on electric-arc-furnace ladle [EAF(L)] steel slag from a mini-mill in Indiana. Based on standard proctor test results, the maximum dry unit weight values of the EAF(L) steel slag were in the 16.8-to-20 kN/m(3) range at the optimum moisture contents of 11-13%. The results of the large-scale direct shear tests performed on EAF(L) steel slag, compacted at 95-100% relative compaction and sheared with normal stress ranging from 50 to 300 kPa, showed that it has excellent frictional characteristics, with friction angles between 40 and 45 degrees. Based on the results from this study, due to its shear strength characteristics, EAF(L) steel slag has the potential to be utilized as a geo-material to improve the shear strength of various marginal soils.
Citation - WoS: 1
Citation - Scopus: 1
Effect of Boron Addition to Steel on Mechanical Properties
(Springer Science and Business Media Deutschland GmbH, 2025) Özmen, Levent; Cakici, Mehmet; Yucel, Onuralp
In the production of qualified steel, if 5–30 ppm boron is present in the product, the hardenability of the steel increases significantly by the case hardening process. This small amount of boron content reduces the austenite grain size (by preventing grain growth) and increases the matrix hardness through the precipitates formed.With the addition of boron, it is possible to obtain the desired hardness depth due to the cementation applied especially in gear parts. This result obtained in boron steels is similar to Cr, Mn, Mo, Ni, etc., which are used in conditions where boron is not used. In other words, the use of boron as a microalloying element also provides cost savings. In this study, the parameters affecting the hardenability of steel by boron addition amounts in steel production using ferroboron were investigated on the basis of chemical content, metallographic structure, and mechanical properties. © The Minerals, Metals & Materials Society 2025.
Citation - WoS: 1
Citation - Scopus: 1
Exploring the Drivers of Green Purchase Behaviour: the Moderating Roles of Perceived Expensiveness and Green Scepticism
(inderscience Enterprises Ltd, 2024) Aydın, Kenan; Altan, Meral Uzunöz; Köse, Şirin Gizem; Çizer, Ece Özer
This research aims to investigate factors affecting green consumption behaviour by utilising theory of planned behaviour and extends the theory by integrating environmental attitude, perceived expensiveness, and green scepticism variables. The results show that environmental attitude, attitude towards purchasing green products, subjective norms, and perceived behaviour control variables determine green product consumption. The study also presents the partial mediator role of attitude towards buying green products in the relationship between environmental attitude and green product purchase behaviour. Furthermore, perceived expensiveness and green scepticism have negative moderating roles in the relationship between attitudes toward purchasing green products and green purchase behaviour.
Free(?) Space at the 2018 Venice Biennale
(Intellect Books, 2019) Yücel, Şebnem
In his article ‘Out of Site/In Plain View: On the Origins and Actuality of the Architecture Exhibition’, architectural historian and curator Barry Bergdoll starts by asking the obvious question: ‘What does it mean to exhibit architecture? Isn’t architecture, once it is built, always already on display?’1 Despite always being on display, however, architecture escapes being exhibited. Because we cannot exhibit architecture in the way an artist can exhibit a painting or a sculpture.
Citation - WoS: 1
Citation - Scopus: 1
Fuzzy Elephant Herding Optimization and DBSCAN for Emergency Transportation: A Case Study for the 2023Turkiye Earthquake
(Springer international Publishing Ag, 2024) Drias, Yassine; Drias, Habiba
In recent times, our planet has experienced numerous natural disasters across all continents. The damage caused by these disasters has been so extensive that Emergency Medical Services (EMS) proved incapable of handling the situation. In this article, we present a novel approach for urgent disaster transport with the aim of minimizing loss of life. In this context, we are investigating the Density-Based Spatial Clustering of Applications with Noise algorithm (DBSCAN) to cluster the large geographic zone affected by the 2023 earthquake in Turkiye. The clustering is done based on hospitals' capacity on one hand and damages on the other hand. The ambulance dispatching task is then tackled using a new fuzzy version of Elephant Herding Optimization called FEHO. This approach addresses the challenge of dispatching ambulances to cover emergency locations effectively and optimally in the clustered regions. Experiments conducted on real data demonstrate the effectiveness of our approach in managing emergency transportation and highlight its potential to minimize the number of casualties.
Citation - WoS: 5
Citation - Scopus: 6
Generation of Feasible Integer Solutions on a Massively Parallel Computer Using the Feasibility Pump
(2017) Mehrotra, Sanjay; Koç, Utku
We present an approach to parallelize generation of feasible mixed integer solutions of mixed integer linear programs in distributed memory high performance computing environments. This approach combines a parallel framework with feasibility pump (FP) as the rounding heuristic. It runs multiple FP instances with different starting solutions concurrently, while allowing them to share information. Our computational results suggest that the improvement resulting from parallelization using our approach is statistically significant. (C) 2017 Elsevier B.V. All rights reserved.
Citation - WoS: 1
Citation - Scopus: 1
Identification of Candidate Biomarkers and Pathways in Breast Cancer by Differential Network Analysis
(Inderscience Publishers, 2020) Mendi, Onur; Karahoca, Adem
Breast cancer is one of the most malignant cancers in women worldwide. The aim of the present study was to explore the underlying biological mechanisms of breast cancer. For this purpose, we propose a novel framework to reveal mechanisms that drive disease progression in breast cancer by combining prior knowledge in the literature with differential networking methodology. Our integration framework has resulted in the most important genes and interactions by allowing ranking the breast cancer-specific gene network. YY1, SMARCA5, FOXM1, STAT4 and PTTG1 were found to be the most important genes in breast cancer. Functional and pathway enrichment analyses identified numerous pathways that may play a critical role in disease progression. Considering the success of the comparison of the results with the literature, the systemic lupus erythematosus pathway may be a potential target of breast cancer.
Citation - WoS: 1
Citation - Scopus: 4
Identification of Uncertainty Levels of Acoustic Properties of Biocomposites Under Different Mounting Conditions in Impedance Tube Tests
(Institute of Noise Control Engineering, 2021) Garip Genç; Şanlıtürk, Kenan Y.; Yusuf Saygılı; Hasan Körük
Impedance tube method is widely used to measure acoustic properties of materials. Although this method yields reliable acoustic properties for soft textured materials, uncertainty levels of measured acoustic properties for hard materials, including biocomposites, can be quite large, mainly due to uncertain mounting conditions. Here, the effects of mounting conditions on the acoustic properties of biocomposites in an impedance tube are investigated. First, nominally identical biocomposite samples with a diameter equal to the inner diameter of impedance tube are manufactured and their acoustic properties are determined. As hard materials practically cause fitting problems in the impedance tube, the diameters of samples are reduced, as in practice, by small amounts and acoustic properties of modified samples are determined. Furthermore, in order to match the diameters of samples to the inner diameter of impedance tube, different materials such as tape, petroleum jelly and cotton are applied around samples to close the air gap between the samples and the tube's inner wall. All the results are compared, and the uncertainty levels caused by different mounting conditions on the acoustic properties of biocomposites are identified. The results show that the transmission loss (TL) measurements are dramatically affected by the mounting conditions while the sound absorption conditions are less sensitive to the mounting conditions. The deviations in the measured TL levels are highest for the samples with tape and wax (10–15 dB). On the other hand, the deviations in the measured sound absorption coefficients are highest for the samples with cotton and tape (1–2%).
Citation - WoS: 1
'Improve the Law' as a Judicial Duty on the Borderlines of Free Speech: Judges as Responsible Epistemic Agents3
(Kozminski Univ, 2022) Uygur, Gulriz; Guergey, Fatma Irem Caglar
This paper discusses judicial duty of improving the law on epistemic grounds and claims in that regarding this obligation, it is possible to give a place to free speech from an epistemic point of view. As a requirement of having epistemic agency, judges like other human beings have epistemological responsibility. Different from the others' responsibility, judges' responsibility is connected to their duty of improving the law, which is required by their job as well as the idea of the rule of law and judicial professional principles. Judges should improve the law's capacity to guide the conduct of its citizens, who are obligated to obey the law. Improving the law also improves the delivery of justice. The ways of legal interpretation and justification are important to improve it. While applying the law, judges can find the law unclear or they may encounter some norm conflicts. In these cases, they should resolve them to keep the law 'legally in good shape', which should meet epistemological requirements. When fulfilling this obligation, judicial free speech on epistemic grounds should not be limited.

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