https://hdl.handle.net/20.500.12960/6 Faculties Mon, 24 Aug 2026 06:21:25 GMT 2026-08-24T06:21:25Z https://hdl.handle.net/20.500.12960/1826 Uluslararası Deniz Hukukunda Boğazlar ve Hürmüz Boğazı Krizi Konferansı 2026 Tebliğ Kitabı Keskin, Sevda Uluslararası deniz hukukunun en kritik meselelerinden biri olan uluslararası seyrüseferde kullanılan boğazlar; Hürmüz Boğazı'nda yaşanan krizle birlikte yeniden dünya gündemindedir. “Uluslararası Deniz Hukukunda Boğazlar ve Hürmüz Boğazı Krizi” başlıklı Konferans; etkinliğin temel amaçlarından biri olan geçmişten günümüze uluslararası boğazların uluslararası deniz hukuku bağlamındaki statüsü; transit geçiş, zararsız geçiş rejimleri gibi boğazlara dair genel düzenlemeleri ve Türk Boğazları ve Hürmüz Boğazı özelinde güncel gelişmeler kapsamında organize edilmiştir. Bu amaçla alanında uzman akademisyenler, uygulamacılar ve araştırmacılar davet edilerek konu hakkında kapsamlı tartışmalara yer verilmiştir. Elinizdeki çalışma, konferansta yer alan açılış konuşmaları, sunulan tebliğler ile oturum başkanları ve konuşmacılardan bire bir teyit alınarak soru-cevap ve tartışma kısımlarının bir araya gelmesiyle oluşmuştur. Bu şekilde konferansa katılamayan ancak konuyla bağlantılı, hedef kitlede yer alan gruplara ve tartışmalara sonradan katkı sunmak isteyen herkese ulaşmak amacımız yerine getirilmiştir. Konferans sürecinde ve etkinliğin tamamlanmasında emeği geçenlere edilen teşekkür aşağıdaki konuşma metinlerinde yer almaktadır. Ancak, iyi niyetli ve çalışkan yol arkadaşları ile kapsamlı bir etkinliğin tamamlanmasının hazzını yaşadığımızı ifade etmek gerekir. Bu süreçte konferansımıza önemli katkılar sunan oturum başkanımız Emekli Oramiral Metin Ataç'a, değerli konuşmacılarımız Prof. Dr. Sezer Ilgın, Emekli Tümamiral Dr. Deniz Kutluk ve Prof. Dr. Samim Ünan'a, ayrıca her etkinliğimizde bizlere destek olan Pîrî Reis Üniversitesi Rektörlüğü, Hukuk Fakültesi Dekanlığı ve öğrencilerimize içten teşekkür ederim. Thu, 01 Jan 2026 00:00:00 GMT https://hdl.handle.net/20.500.12960/1826 2026-01-01T00:00:00Z https://hdl.handle.net/20.500.12960/1825 From mill scale to Sr-ferrite permanent magnets; upcycling by additives Gunduz Akdogan, Nilay; Kalkavan, Duru; Ghorbanighoshchi, Shabnam; Akdogan, Ozan This study examines the sustainable production of strontium hexaferrite by recycling mill scale, a by-product of steel manufacturing, as a source of iron. Strontium, designated as a critical raw material by the European Union, is essential for high-demand magnetic applications. In this study, various additives, including Al2O3, Cr2O3, Co3O4, and La2O3, were incorporated during the synthesis process to enhance the magnetic properties of the resulting strontium hexaferrite. Additives were included in the structure using the mechanochemical method. The results show that the incorporation of these additives has a significant influence on the coercivity, remanence, and overall magnetic anisotropy of SrFe12O19. Thu, 01 Jan 2026 00:00:00 GMT https://hdl.handle.net/20.500.12960/1825 2026-01-01T00:00:00Z https://hdl.handle.net/20.500.12960/1824 Modeling Gradual and Joint Coverage in Location Problems Karatas, Mumtaz; Eriskin, Levent; Yakici, Ertan Location problems are a core area of research within OR/MS and decision sciences, with diverse applications in logistics, facility location, healthcare, defense, energy and transportation. One important feature of location problems is the coverage of demand or service areas by facilities, which can have significant economic, social, and environmental implications. Conventional models often assume binary or deterministic coverage, where a facility either fully covers a demand point or does not cover it at all. Although this simplification is useful for theoretical derivations, back-of-the-envelope calculations, and performance comparison, it overlooks the nuances and complexities of real-world scenarios. In this study, we provide an overview of the modeling challenges in location problems that incorporate gradual and joint coverage, where multiple facilities provide partial and cooperative coverage to demand points. Based on previous studies in this domain, we present mathematical formulations, and discuss techniques for linearization and approximation. As an illustrative example, we discuss a capacitated minimal covering location problem (MCLP) adapted from [21], which aims to determine the location and size of undesirable facilities in a given region. We start by introducing the nonlinear formulation that minimizes the sum of demand covered by those undesirable facilities. Subsequently, we introduce three integer linear programming formulations given in [21], two of which involve linear approximations based on a separable programming approach and a tangent line approximation method, while the third involves an exact reformulation of the problem. We also discuss the impact of linearization approximation errors on solution quality and time. © 2026 by World Scientific Publishing Co. Wed, 01 Jan 2025 00:00:00 GMT https://hdl.handle.net/20.500.12960/1824 2025-01-01T00:00:00Z https://hdl.handle.net/20.500.12960/1823 From efficiency to resilience: Strategic shifts in maritime organizations through digitalization, ESG, and human capital (2018 - 2025) Arslan, Aykut; Akturan, Abdülkadir Most existing maritime research examines digitalization, ESG pressures, and human capital separately. This paper fills the gap in explaining how the three factors dynamically reshape strategic orientations in the highly unstable post-2020 period. It explains how maritime organizations reconfigured their strategies between 2018 and 2025. The research is based on sixteen semi-structured interviews with top professionals from different segments of the maritime ecosystem across Europe and Asia, analyzed according to Gioia methodology. The main finding is a structural transformation from an efficiency strategy before 2020 toward a resilience strategy after 2020. It finds that this shift emanates from an interaction between digitalization (a ‘sensing’ capability) and human capital (a ‘reconfiguring’ capability). Seven strategic patterns are identified, which include new forms such as glocal ESG adaptation-blending global rules with local innovation-and hybrid leadership--blending technical, digital, and human skills-in addition to more traditional forms like asset diversification or trade pattern flexibility through chartering tonnage. This study is original as it is the first integrated empirical analysis of the interaction, with a rare pre/post-2020 temporal comparison conceptualizing new patterns as specific dynamic capabilities for the maritime sector. Thu, 01 Jan 2026 00:00:00 GMT https://hdl.handle.net/20.500.12960/1823 2026-01-01T00:00:00Z