http://hdl.handle.net/20.500.12566/5 2026-08-13T11:09:32Z 2026-08-13T11:09:32Z Yurtyapan, Mustafa Said Aydemir, Erdal http://hdl.handle.net/20.500.12566/2496 2026-08-06T08:18:49Z 2026-01-01T00:00:00Z

Integrating sustainability, circular economy, and industry 4.0 criteria in ERP software selection using Grey MCDMs Yurtyapan, Mustafa Said; Aydemir, Erdal Selecting an enterprise resource planning (ERP) system that simultaneously satisfies sustainability, circular economy, and Industry 4.0 requirements is a multi-criteria decision problem complicated by incomplete information and small expert panels, in which judgments are more naturally expressed as ordinal priorities than as precise scores. To address the lack of an integrated sustainable-ERP (S-ERP) selection framework for these conditions, this study develops and applies a Grey System Theory (GST)-based Grey Ordinal Priority Approach (OPA-G). The framework embeds sustainability, circular economy, and Industry 4.0 criteria in a single decision structure and represents the judgments of a three-member expert panel as ordinal priorities under grey interval uncertainty, avoiding pairwise comparisons while preserving uncertainty through grey numbers. The model is applied to a real manufacturing case, and its robustness is tested through seven expert-priority scenarios together with area-level (±10%, ±20%) and ordinal perturbation analyses, and benchmarked against Grey TOPSIS and Grey VIKOR. The results show that the Fundamental and Economic criteria dominate the decision (0.640), followed by Industry 4.0 compatibility (0.233), environmental (0.099), and social (0.028) criteria; System Cost, Quality, and Financial Situation are the most influential criteria, while Cloud and Edge Computing, Artificial Intelligence, and IoT are the leading digital requirements. The framework yields the ranking ERP1 > ERP2 > ERP3 > ERP4, which remains unchanged across all perturbation scenarios and is reproduced identically by Grey TOPSIS and Grey VIKOR. Although economic performance remains primary, Industry 4.0 capabilities are the decisive enablers that make environmental and social monitoring operationally executable. The proposed framework therefore offers a transparent, robust, and practically implementable decision-support tool for sustainable ERP procurement under uncertainty, extensible to multi-firm panels and broader sustainability domains.

2026-01-01T00:00:00Z Abdurrahman Mohamed http://hdl.handle.net/20.500.12566/2495 2026-08-06T07:49:07Z 2026-01-01T00:00:00Z

Minimal adaptive conservation for saving urban memory in conflict areas: Gaza, Palestine Abdurrahman Mohamed Conventional theories of architectural conservation mainly focus on the application of extensive programs and the deployment of large resources, on the authenticity of materials and high-expertise conservation. Usually, they are helpless in dealing with abnormal situations in conflict areas. Few projects attempted to introduce new concepts for architectural conservation in conflict areas with innovative practical implementation. One of these projects was the conservation of Al-Alami house in Gaza, Palestine in 2010 (destroyed by Israel in 2023). Despite the innovative theoretical approach and practical applications used in this project, there is still a need for further development to arrive at a more theoretically sound and practically stronger approach that will still be appropriate for architectural conservation in conflict areas. This research introduces the Minimal Adaptive Conservation for Saving Urban Memory - MACSUM, as a new approach for architectural heritage conservation in conflict and post conflict areas. This approach calls for a shift from material-centred, expert-led restoration and puts the continuity of urban memory and identity in its focus. MACSUM is a theoretical framework that aims to safeguard heritage through minimal intervention, adaptive reuse, and local partnerships. It brings the community as the primary carrier of cultural dignity and urban memory. The research uses case study analysis to examine the application of MACSUM in the preservation of Al-Ashi historical house in Gaza, Palestine. MACSUM highlights the activation of local partnership, incremental conservation, and adaptive reuse as major foundations for conservation in conflict areas. This project demonstrated that the context and innovative conservation approach are of great importance and play a vital role in conservation in conflict areas. This article opens the door for future research to develop MACSUM and to examine its applications in other conflict areas like Syria and Ukraine.

2026-01-01T00:00:00Z Sarıoğlan, Mehmet Gürs, Batuhan http://hdl.handle.net/20.500.12566/2494 2026-08-04T08:12:14Z 2026-01-01T00:00:00Z

Adoptability of solo dining practices in restaurant businesses: a study from the perspective of diffusion of innovations and organizational readiness Sarıoğlan, Mehmet; Gürs, Batuhan Solo dining—eating alone in a public restaurant—has gained global visibility, yet most restaurants still design spaces and service flows exclusively around group parties. This monograph explains that gap by reframing solo dining as an innovation-adoption challenge rather than a mere consumer trend. Building on Rogers’s Diffusion of Innovations theory and the Organizational Readiness for Change (ORIC) framework, the authors develop a multi-construct survey instrument and administer it to 328 restaurant operators across seven Turkish provinces. The study tests how five perceived innovation characteristics (relative advantage, compatibility, complexity, trialability, observability) and one context factor (spatial adequacy) predict two dimensions of readiness—change commitment and change efficacy—and, in turn, actual adaptation intent. Structural-equation modelling reveals that spatial adequacy and relative advantage are the strongest positive predictors of readiness (β =.42 and β =.35, respectively), whereas perceived complexity exerts a significant negative effect (β = −.29). Readiness accounts for 63 % of the variance in adaptation intent, underscoring its mediating role. Post-hoc multi-group tests show readiness scores differ by restaurant size and service style, indicating that solo-dining roll-outs must be context-specific. The book concludes with (i) a readiness-checklist, (ii) spatial layout templates that minimise seat wastage, and (iii) staff training guidelines to mitigate social discomfort for lone guests. By integrating innovation-diffusion theory with hospitality operations, this work offers the first empirically validated roadmap for restaurants seeking to pilot or scale solo-dining zones. Licensed under CC BY-NC 4.0 (Creative Commons Attribution-NonCommercial International).

2026-01-01T00:00:00Z Turhan, Mehmet Fatih Kaçal, Mustafa Recep Özdoğan, Hasan Turşucu, Ahmet Akman, Ferdi Oğul, Hasan Polat, Hasan Yurtcan, Sinem http://hdl.handle.net/20.500.12566/2493 2026-07-14T11:31:22Z 2025-01-01T00:00:00Z

Determination of neutron and gamma ray shielding properties, secondary radiation formations and neutron damage of composites containing polyester/pyrite/titanium diboride Turhan, Mehmet Fatih; Kaçal, Mustafa Recep; Özdoğan, Hasan; Turşucu, Ahmet; Akman, Ferdi; Oğul, Hasan; Polat, Hasan; Yurtcan, Sinem Composite materials comprising titanium diboride (TiB2), unsaturated polyester resin, and pyrite (FeS2) at varying weight percentages were fabricated and evaluated for their interaction with neutron and gamma radiation. This study adopts a comprehensive methodology, combining theoretical calculations, experimental measurements, and Monte Carlo simulations using PHITS and MCNP6. A strong correlation was observed among experimental results, WinXCOM data, and simulation outputs, with discrepancies remaining within approximately 5 %. To assess neutron shielding performance, fast neutron removal cross sections and partial neutron transmission rates were determined for both fast and thermal neutron energies, as well as across varying sample thicknesses. Additionally, secondary radiation effects were analyzed by quantifying the number and average energy of secondary neutrons and gamma photons generated from interactions with thermal and fast neutrons. Radiation damage parameters, including Total Ionizing Dose (TID) and Displacement Per Atom (DPA), were also evaluated. Gamma-ray shielding performance was assessed through experimental measurements, theoretical models, and Monte Carlo simulations, focusing on key parameters such as mass attenuation coefficients, kerma relative to air and concrete, and buildup factors. Among the composites, the sample labeled FeSTiB-50 demonstrated superior fast neutron attenuation capability—outperforming conventional concrete and approaching the shielding efficiency of paraffin—while all composites exhibited excellent attenuation of thermal neutrons. Furthermore, the FeSTiB-50 composite generated secondary radiation with lower average energy compared to other samples. However, the gamma-ray shielding performance was found to decrease with increasing TiB2 content, indicating a trade-off between neutron and gamma shielding effectiveness.

2025-01-01T00:00:00Z