Faculty of Engineering

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Ergül, Özgür Salih (288)
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Recent Submissions

ROBOtic Replicants for Optimizing the Yield by Augmenting Living Ecosystems Şahin, Erol; Turgut, Ali Emre; Alemdar, Hande(2026-10-31) As the world’s most successful pollinators, bees play a huge part in every aspect of the ecosystem. So, any decline in bee populations could pose a threat to global agriculture. In this context, the EU-funded RoboRoyale pr...
Rapid bacterial detection through microfluidic integration with a glucometer Eryilmaz, Merve; İLBASMIŞ TAMER, SİBEL; Panhwar, Sallahuddin; Tayyarcan, Emine Kübra; BOYACI, İSMAİL HAKKI; Suludere, Zekiye; ÇETİN, DEMET; Zengin, Adem; Yıldırım, Ender; TAMER, UĞUR (2025-08-01) We present a novel approach for sensitive and portable detection of pathogenic bacteria, which is crucial for household and clinical practice. Our method employs immunoliposomes, antibodies, and microchip to detect specifi...
Investigating the behavior of D-glucose, D-fructose, and D-allulose in aqueous media by molecular dynamics simulations Buğday, Zinnur Yağmur; Bayramoğlu, Beste; Öztop, Halil Mecit (2025-07-01) Isomeric monosaccharides may have different hydration behaviors, leading to distinct physicochemical properties in solutions. In this work, the aqueous behavior, structure, and hydration properties of D-allulose, D-glucose...
Psyllium and monogylceride addition in breadmaking: Molecular interactions, nano- and micro-structural characterization, physical properties, sensory properties, and starch digestibility Güven, Özge; Şensoy, İlkay; De Leyn, Ingrid; Dewettinck, Koen; Van Bockstaele, Filip (2025-06-01) Psyllium, a soluble dietary fiber, was combined with a commercial monoglyceride in the formulation of bread, replacing wheat flour with psyllium at ratios of 0:100, 2:98 and 5:95 (g psyllium: g flour weight), with the brea...
Tuning the lattice strain through manipulating crystal structure of high entropy oxides enhances electrocatalytic performance Coskuner, Ali Burcay; Erdil, Tuncay; Özgür, Çağla; Geyikci, Uygar; Toparlı, Çiğdem (2025-06-01) This study investigated the effects of crystal structure on the electrocatalytic OER and ORR performance. High-entropy oxides were synthesized, yielding rock-salt (HRS) and spinel cubic (HSP) crystal structures. Overpotent...
Thermal performance of combined annular and longitudinal fins-on-tube units in natural convection Salamatbakhsh, Elyas; Bayer, Özgür (2025-05-15) To enhance heat transfer in natural convection, annular and longitudinal fins have extensive usage in the industry and have been vastly studied in the literature. The current study investigates horizontal tubes with novel ...
Joint shear model for fiber reinforced concrete beam-column connections Kantekin, Yunus; Burak Bakır, Burcu (2025-05-01) Beam-column joints undergo substantial shear stresses and deformations during strong ground motions, significantly influencing overall structural response and integrity. Therefore, accurate prediction of joint behavior is ...
High-pressure phase behavior of the carbon dioxide-trifluoropropylisobutyl polyhedral oligomeric silsesquioxane binary system Ertaş, Alican; Dilek Hacıhabiboğlu, Çerağ (2025-05-01) The solubility of a bifunctional polyhedral oligomeric silsesquioxane, trifluoropropylisobutyl (TFIB) POSS, in supercritical carbon dioxide (scCO2) was investigated. In the temperature and pressure ranges of 308 K to 323 K...
Mathematical modeling of response dynamics of n-type SnO2-based thick film gas sensor Atman, Berkan; Karakaş, Gürkan; Uludağ, Yusuf (2025-05-01) The sensing mechanism of semiconductor metal oxide (SMOX) gas sensors has a complex nature due to the physical and chemical phenomena involved. In this study, a comprehensive transient mathematical model was developed cons...
Neighborhood search with heuristic-based feature selection for click-through rate prediction Aksu, Dogukan; Toroslu, İsmail Hakkı; Davulcu, Hasan (2025-04-15) Click-through-rate (CTR) prediction is crucial in online advertising and recommender systems. Maximizing CTR has been a major focus, leading to the development of numerous models designed to capture implicit and explicit f...
Tail assignment problem with hour-to-cycle ratio constraints Aydoğan, Çiya; Gürel, Sinan (2025-04-01) Effective management of hour-to-cycle performance is crucial for any aircraft operating under an operating lease contract. This protects an airline from incurring supplemental rental payments that arise from leasing contra...
K-Pg transition in neritic limestones: Deciphering the first bio/chemo-stratigraphic records and tectono-sedimentary evolution, eastern Neotethys (NE Türkiye) Köroğlu, Fatih; SARI, BİLAL; KANDEMİR, RAİF; Yılmaz, İsmail Ömer; Özer, Sacit (2025-04-01) Interestingly, the K-Pg transition from the Cretaceous to the Paleogene is the closest to our time and, from today's perspective, the most dramatic extinction that has ever occurred on Earth. Using different methods and li...
Automated construction contract analysis for risk and responsibility assessment using natural language processing and machine learning Dikmen, Irem; Eken, Görkem; Erol, Huseyin; Birgönül, Mustafa Talat (2025-04-01) Construction contracts contain critical risk-related information that requires in-depth examination, yet tight schedules for bidding limit the possibility of comprehensive review of extensive documents manually. This resea...
Temperature-dependent evolution of Al-Ge microstructures for wafer-level vacuum packaging of MEMS devices Dimez, Bekir Gürel; Akın, Tayfun; Kalay, Yunus Eren (2025-04-01) This paper reports the temperature dependency of eutectic aluminum-germanium (Al-Ge) microstructures that can be used for complementary metal-oxide semiconductor (CMOS)-compatible wafer-level vacuum packaging of microelect...
Investigation of Variable Taper Angle Design in Highly Tapered Laminates for Delaying Delamination Ergin, Fırat; Kayran, Altan (2025-03-01) Specific requirements in aircraft components may necessitate the use of high taper angles in the thickness transition region of composite laminates, leading to early delamination initiation at the thin side of the taper re...
Municipal landfill site selection using TOPSIS methodology: A case study for Polatlı, Ankara, Türkiye Oner, Gokalp; Akgün, Haluk; KOÇKAR, MUSTAFA KEREM; Kelam, Arzu Arslan (2025-03-01) Polatl & imath;, which is the largest and tenth out of twenty fifth most populated county of Ankara is well known for being one of the most productive agricultural districts in T & uuml;rkiye in terms of its barley and whe...
Optimal seismic design of reinforced concrete moment-resisting frames using an improved metaheuristic and neural networks Razavi, Navid; Gholizadeh, Saeed; Hasançebi, Oğuzhan (2025-03-01) Performance-based seismic design optimization of reinforced concrete (RC) frames is a complex and computationally intensive problem in structural engineering. In this paper, a hybrid combination of soft computing technique...
Overcoming instability challenges of binder-free, self-standing 1T-TiS2 electrodes in aqueous symmetric supercapacitors through dopamine functionalization Ucar, Ali Deniz; Baglicakoglu, Sumeyye Kandur; Durukan, Mete Batuhan; Cugunlular, Murathan; Öz, Sena; Kocak, Yusuf; Ülgüt, Burak; Ozensoy, Emrah; Ünalan, Hüsnü Emrah (2025-03-01) Two-dimensional materials draw considerable interest for energy storage. Semimetallic phases of transition metal dichalcogenides (TMDs), notably titanium disulfide (TiS2), are extensively studied for their distinctive elec...
Impact of nitrogen and alkali dopants on pore architecture and surface functionalities of biochar in one-step CO2 pyrolysis Akın, Süleyman Şener; Kır, Ali Bertan; Kazanç Özerinç, Feyza (2025-03-01) This study aims to elucidate the roles of common nitrogen dopants (melamine (M) and ammonium chloride (ACL)) and alkali agents (KOH (K) and NaOH (N)) on surface functional groups, pore architectures, and degrees of graphit...
A comprehensive mathematical modeling study for temperature evolution during radio frequency assisted honey decrystallization Karatas, Ozan; Uyar, Rahmi; Son, Ezgi; Coşkun, Eda; Mert, Behiç; Marra, Francesco; ERDOĞDU, FERRUH (2025-03-01) In industrial settings, honey decrystallization is conducted by conventional thermal processing with hot water (12–18 h) or air (24–36 h) at around 60 °C. Considering the demands for a green and sustainable efficient proce...

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