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: 13Citation - Scopus: 14Damage To Monumental Masonry Buildings in Hatay and Osmaniye Following the 2023 Turkey Earthquake Sequence: the Role of Wall Geometry, Construction Quality, and Material Properties(SAGE Publications Inc., 2024) Bozyigit,B.; Ozdemir,A.; Donmez,K.; Dalgic,K.D.; Durgut,E.; Yesilyurt,C.; Acikgoz,S.This article reports on the findings of an investigation on 29 historic stone masonry buildings located in the cities of Hatay and Osmaniye following the 2023 Turkey earthquake sequence. The earthquake couplet on 6 February (with moment magnitudes 7.8 and 7.5) and the following events (including another earthquake which occurred on 20 February with a moment magnitude of 6.3) resulted in significant damage to the buildings. To understand why, the examined buildings were assigned an EMS-98 damage level (ranging from 1 to 5) and descriptive response categories (masonry disaggregation, local mechanism, and global response). Overall damage statistics indicated that masonry disaggregation was common and coterminous with local mechanism response. Wall geometry and construction quality indices were then investigated to explore why these were the dominant damage mechanisms. Wall geometry indices highlighted insufficient amount of walls to resist the local seismic demands, particularly in the transverse (e.g. short) direction of buildings. This deficit promoted the formation of local mechanisms. Construction quality indices suggested that stone layouts did not enable interlocking and that the walls were prone to disaggregation. To further investigate the role of material properties on the observed damage, materials were characterized using three non-destructive testing techniques: ultrasonic pulse velocity (UPV) measurements to estimate the static elastic modulus of stones, Schmidt rebound hammer (SRH) tests to estimate the compressive strength of stones, and the mortar penetrometer (MP) tests to estimate the compressive strength of mortar. The measurements indicated poor mortar quality, which may have expedited failures. Using established correlations, various other important material parameters (e.g. mortar cohesion and homogenized masonry strength) are derived. It is envisioned that the damage observations and the material measurements in this article will inform detailed modeling efforts on the behavior of historic masonry buildings during the earthquakes. © The Author(s) 2024.Article Citation - WoS: 7Citation - Scopus: 4Roma People of Turkey Re-Write Their Cinematographic Images(SAGE Publications Inc., 2020) Uştuk, Ozan; Tunç Cox, AyçaThe historical construction of the Roma image in Turkey, via both official and unofficial narratives, has constituted a derogatory repertoire. Their portrayal in the mainstream Turkish cinema and TV in particular has contributed to the predominant imaginary in circulation which essentially is based on common binaries and stereotypes. In order to challenge prevailing stereotypes about the Roma, we have conducted a transformative action research project with the Roma people of the Sira district in Izmir, Turkey, who volunteered to make their own films. This article provides an account of this community filmmaking project. Locating the Roma in the conceptual framework of subalternity, we ultimately investigate whether it is possible to talk about agency in regard to the Roma people of Turkey.Article Citation - WoS: 3Citation - Scopus: 3Energy Performance Assessment in Terms of Primary Energy and Exergy Analyses of the Nursing Home and Rehabilitation Center(SAGE Publications Inc., 2019) Hancıoğlu Kuzgunkaya, EbruThis paper concerns with the energy analysis (based on primary energy) and exergy analysis of Narlıdere Nursing Home and Rehabilitation Center (NNHRC) in İzmir, Turkey that was chosen as a sample public building. The Center services as a nursing and rehabilitation center for the aged and it also includes a geriatric division operating as a hospital. The Center was analyzed using the actual energy consumption data derived from several energy audits. Energy efficiency (according to the primary energy ratio) and exergy efficiency of the facility were calculated to be 59% and 14%, respectively. The results have indicated that the exergy efficiencies of space heating and cooling have the lowest values compared with the other units of facility. Specific primary energy consumption and specific exergy consumption of the facility were found to be 271.91 kWh/m2 year and 290.23 kWh/m2 year, respectively. Sustainability index value of the overall NNHRC was found to be 1.621.Article Citation - WoS: 21Citation - Scopus: 27Exploring the Impact of External Shading System on Cognitive Task Performance, Alertness and Visual Comfort in a Daylit Workplace Environment(SAGE Publications Inc., 2019) Leccese, F.; Salvodori, G.; Öner, Merve; Kazanasmaz, Zehra TuğçeThe authors examined the effect of external shading system on cognitive performance, alertness and visual comfort of visual display terminal (VDT) users under two realistic office lighting settings in this study. Daylight was the source of illumination being considered as the most significant and preferred one. A total of 26 participants performed visual and cognitive demanding tasks as well as providing subjective alertness, performance and visual evaluations in a full-scale mock-up VDT workstation. Two trials (with and without shading system) were executed during one experimental session. Results revealed that the use of a shading system improves the performance of a user on colour-naming task requiring sustained attention, while no differential effects were observed on tasks involving other cognitive skills such as search velocity and vigilance. Within-subject performance differences were more pronounced during morning hours. Higher performance was reported in some cognitive tests when the subjective sensation of visual discomfort was lower.Article Citation - WoS: 7Citation - Scopus: 9Fuzzy Logic Model for the Categorization of Manual Lighting Control Behaviour Patterns Based on Daylight Illuminance and Interior Layout(SAGE Publications Inc., 2019) Cılasun Kunduracı, Arzu; Kazanasmaz, Zehra TuğçeIn considering total building energy consumption, lighting plays an important role in shaping energy consumption and use. Although key strategies (such as energy efficient lighting products, lighting control systems and energy simulation software) are developed so far, such attempts may be unsuccessful unless users are not taken into consideration. Users’ behaviours and their manual lighting control actions depend on various factors, though within the scope of this study manual lighting control behaviour was analysed only in terms of interior layout and daylight illuminance. Three private offices in Izmir Institute of Technology were monitored using illuminance metres and occupancy/light detectors under eight different interior layout conditions. In relation to change of interior layout and daylight penetrations, users’ manual lighting control behaviours were monitored. The obtained data were then used to construct a fuzzy logic model in MATLAB FIS editor. A fuzzy logic algorithm was applied to classify behaviour patterns about the tendency to turn on the lights. This kind of prediction of the light usage tendency regarding the occupancy is aimed to foresee the ‘possible’ manual lighting control behaviour within given conditions. The gathered classification can be used further in future studies of manual lighting control behaviour and energy-saving estimations/simulations.Article Citation - WoS: 3Citation - Scopus: 5Adsorption Characteristics of Lead-, Barium- and Hydrogen-Rich Clinoptilolite Mineral(SAGE Publications Inc., 2003) Çakıcıoğlu Özkan, Seher Fehime; Ülkü, SemraThe carbon dioxide and water vapour adsorption properties of local clinoptilolite-rich material, both as the original and as lead-, barium- and hydrogen-rich forms, were examined. The lead- and barium-rich forms were prepared by treatment of the original clinoptilolite with Pb(NO3)2 and BaCl2 respectively, while the hydrogen-rich form was prepared by NH4Cl and heat treatment. Water and CO2 adsorption experiments were conducted in a volumetric system under static conditions, with low-pressure adsorption data being used for the characterization of the natural, Pb-rich, Ba-rich and H-rich clinoptilolite samples. Although the existence of barium-exchange was not noted, an appreciable decrease in CO2 adsorption was observed with the Pb-rich and H-rich forms due to a decrease in the electrostatic interaction between the surface and the adsorbate. Application of the Dubinin-Astakhov equation to the water adsorption data established the existence of micropores of different sizes that exhibited different adsorption mechanisms.Article Citation - WoS: 21Citation - Scopus: 26Urban Crisis: ‘limits To Governance of Alienation’(SAGE Publications Inc., 2017) Bayırbağ, Mustafa Kemal; Penpecioğlu, MehmetThis article aims to develop a comparative framework of analysis to study urban crises, arguing that there is a need to establish the analytical links between ‘everyday life and systemic trends and struggles’, and thus to tie together the insights produced by ‘particularistic accounts’. It examines urban crises as political phenomena and brings the Marxist notion of ‘alienation’ to the centre of attention. We argue that ‘alienation’ – as a universal mechanism facilitating capital accumulation process via dispossession, and as negative mental/emotional implications of dispossession, is useful to establish those analytical links. We identify two domains, urban economic structure and urban political system, where alienation is contained. Public authorities deploy various containment strategies in these domains to govern alienation, and urban crises occur when these strategies fail. The post-2008 wave of urban upheavals could be explained by the failure of roll-out neoliberal strategies, which constitute the basis of our comparative framework.Article Citation - WoS: 6Citation - Scopus: 7Experimental and Numerical Investigation of the Effect of Interlayer on the Damage Formation in a Ceramic/Composite Armor at a Low Projectile Velocity(SAGE Publications Inc., 2017) Taşdemirci, Alper; Tunusoğlu, GözdeThe damage formation in a multilayered armor system without and with an interlayer (rubber, Teflon, and aluminum foam) between the front face ceramic layer and the composite backing plate were investigated experimentally and numerically. The projectile impact tests were performed in a low-velocity projectile impact test system and the numerical studies were implemented using the nonlinear finite element code LS-DYNA. The results of numerical simulations showed that the stress wave transmission to the composite backing plate decreased significantly in Teflon and foam interlayer armor configurations. Similar to without interlayer configuration, the rubber interlayer configuration led to the passage of relatively high stress waves to the composite backing plate. This was mainly attributed to the increased rubber interlayer impedance during the impact event. The numerical results of reduced stress wave transmission to the backing plate and the increased damage formation in the ceramic front face layer with the use of Teflon and foam interlayer was further confirmed experimentally.Article Citation - WoS: 6Citation - Scopus: 7The Effect of Perforations on the Stress Wave Propagation Characteristics of Multilayered Materials(SAGE Publications Inc., 2016) Taşdemirci, Alper; Kara, AliThe effect of perforated interlayers on the stress wave transmission of multilayered materials was investigated both experimentally and numerically using the Split Hopkinson pressure bar (SHPB) testing. The multilayer combinations consisted of a ceramic face plate and a glass/epoxy backing plate with a laterally constrained low modulus solid or perforated rubber and Teflon interlayer. The perforations on rubber interlayer delayed the stress rise time and reduced the magnitude of the transmitted stress wave at low strains, while the perforations allowed the passage of relatively high transmitted stresses at large strains similar to the solid rubber interlayer. It was concluded that the effect of perforations were somewhat less pronounced in Teflon interlayer configuration, arising from its relatively low Poisson's ratio. It was finally shown that SHPB testing accompanied with the numerical simulations can be used to analyze the effect of compliant interlayer insertion in the multilayered structures. © The Author(s) 2015.Article Citation - WoS: 4Citation - Scopus: 6Elected Neighbourhood Officers in a Turkish City (izmir): Gendered Local Participation in Governance(SAGE Publications Inc., 2013) Şenol, FatmaElected Neighbourhood Officers in a Turkish City (Izmir): Gendered Local Participation in Governance By: Senol, Fatma URBAN STUDIES Volume: 50 Issue: 5 Pages: 977-993 Published: APR 2013 Context Sensitive Links Full Text from Publisher Close AbstractClose Abstract This paper explores how gender differences and the local scale influence individuals' conditions (i.e. motivations/issues, resources and styles) for inclusion in formal politics as electoral candidates and then as officers. The experiences of women and men muhtars-elected resident-officers of neighbourhoods-in Izmir (Turkey) in 2008 provided the data. It appeared that political participation via neighbourhood offices is shaped by (in)formal mechanisms of power relations that have been historically male-dominated with patriarchal rule(r)s at the neighbourhood level and with clientelist and statist ones at multiple scales. Men were supported greatly by their gendered neighbourhood-based networks. Women with male backing, including of incumbent muhtars, had better chances. All of the muhtars aimed at guiding residents through the governmental system, experiencing that the centralised state undermined muhtars' representative roles. By following certain tactics a few, mostly women, muhtars were persistent enough to participate in the governmental system that operated through patron-client relationships.