Graduate School of Natural and Applied Sciences, Thesis

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Thesis (25799)

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Engineering and Technology (2766)
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1960 - 1979 (2467)
1980 - 1999 (6615)
2000 - 2019 (12728)
2020 - 2026 (3984)

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Master Thesis (21422)
Ph.D. Thesis (4359)
Thesis (25)

Recent Submissions

DESIGN AND FABRICATION OF A 1550 NM HIGH POWER PULSED FIBER LASER FOR STIMULATED BRILLOUIN SCATTERING SUPPRESSION IN POWER OVER FIBER APPLICATION Akkuş, Emrecan; Turan, Raşit; Goodarzi, Arian; Department of Micro and Nanotechnology (2026-5-21) This thesis presents a novel method for design and fabrication of pulsed fiber laser operating at a wavelength of 1550 nm, aiming to suppress the stimulated Brillouin scattering (SBS) phenomenon in power over fiber (PoF) s...
Pre-service chemistry teachers' conceptual understanding on 10th grade sustainability theme in 2024 chemistry curriculum Şekerci, Merve; Boz, Yezdan; Department of Science Education (2026-5-18) The aim of this study is to assess the conceptual understanding of pre-service chemistry teachers within the scope of the 10th grade Sustainability Theme in the 2024 Maarif Model Chemistry Curriculum. The topics addressed ...
A COST-AWARE FRAMEWORK FOR EXPLAINABILITY-BASED MONITORING OF BEHAVIORAL DRIFT IN CREDIT RISK MODELS Bozan, Erdal; Karakaya, Şakir; Department of Industrial Engineering (2026-4-22) Credit-risk models operate in environments that change as borrower behavior, macroeconomic conditions, and institutional policies evolve. Such changes can weaken a deployed model. In practice, monitoring often relies on di...
LASER POWDER BED FUSION FABRICATED HASTELLOY X: EFFECT OF HEAT TREATMENT ON MICROSTRUCTURAL EVOLUTION, MECHANICAL PROPERTIES AND HIGH TEMPERATURE OXIDATION BEHAVIOR Özer, Seren; Dericioğlu, Arcan Fehmi; Esen, Ziya; Department of Metallurgical and Materials Engineering (2026-4-22) This work systematically investigated the microstructural evolution, mechanical response, and high-temperature oxidation behavior of laser powder bed fusion (L-PBF)-fabricated Hastelloy X (HX) alloy subjected to solution a...
Neighborhood satisfaction of local women in regenerating neighborhoods: The case of Kadifekale Çay, Deniz; Severcan, Yücel Can; Urban Design in City and Regional Planning Department (2026-4-21) International migration following the Syrian civil war has transformed urban spaces in Türkiye. This thesis examines how structural transformations in Kadifekale affect neighborhood satisfaction and place attachment of lon...
INTEGRATION OF AI INTO PEER FEEDBACK: STUDENTS’ PERCEPTIONS AND EXPERIENCES IN A PROGRAMMING COURSE Bashirzadeh, Motahhareh; Er, Erkan; Department of Computer Education and Instructional Technology (2026-4-21) As Artificial Intelligence (AI) becomes increasingly integrated into Computer Science Education (CSE), many existing approaches have focused on automating feedback processes, primarily emphasizing error detection and corre...
Single-step synthesis of dimethyl ether from synthesis gas using bifunctional catalyst Muşdu, Emel; Sezgi, Naime Aslı; Department of Chemical Engineering (2026-4-21) In recent years, growing concerns about fossil fuel emissions and rising global energy demand have led to an increase in research activity into sustainable and clean fuel sources. Dimethyl ether (DME) is regarded as a pote...
ENGINEERING OF NONSTOICHIOMETRIC HIGH-ENTROPY SPINEL OXIDE CATALYSTS FOR ZINC-AIR BATTERIES Geyikçi, Uygar; Toparlı, Çiğdem; Department of Metallurgical and Materials Engineering (2026-4-20) The escalating global energy demand necessitates reliable, grid-scale storage solutions to support intermittent renewable energy sources. Rechargeable zinc-air batteries (ZABs) have emerged as highly compelling candidates ...
EVALUATION OF LASER-BASED OXIDE REMOVAL AS AN ALTERNATIVE TO ACID PICKLING IN CONTINUOUS FLAT STEEL PROCESSING LINES: ENERGY CONSUMPTION AND GREEN TRANSITION PERSPECTIVE Çelikses, Eren; Özbilgin, İrem Nur Gamze; Department of Metallurgical and Materials Engineering (2026-4-20) The steel industry's transition towards decarbonization necessitates sustainable alternatives to conventional, energy-intensive, and environmentally hazardous hydrochloric acid pickling processes. Laser-based descaling has...
INVESTIGATING FORAGING ECOLOGY DIFFERENCES BETWEEN TWO HONEYBEE SUBSPECIES, APIS MELLIFERA CAUCASICA AND APIS MELLIFERA SYRIACA Yasav, Nergis; Bilgin, Cemal Can; Kükrer, Mert; Department of Biology (2026-4-17) This thesis compares the foraging ecology and colony dynamics of two Turkish honeybee subspecies, Apis mellifera caucasica and A. m. syriaca, under common- garden conditions at the METU Campus Apiary. Five colonies of each...
Unsteady Adjoint-Based Optimization of Flame Deflectors to Mitigate Ignition Overpressure Danışan, Ercan Umut; Eyi, Sinan; Department of Aerospace Engineering (2026-4-16) The solid rocket boosters (SRBs) of space launch vehicles generate strong, transient Ignition Overpressure (IOP) waves in the first seconds of ignition. These waves travel through the launch environment and reflect off the...
Assessing BIM information requirements in highway projects: a case study from Türkiye Eroğlu (Yetişir), Aygün Ezgi; Öztürk, Hande Işık; Atasoy Özcan, Güzide; Department of Civil Engineering (2026-4-13) Building Information Modelling (BIM) has expanded across road infrastructure projects, yet highway employers still operate without BIM Use-based information requirements that connect project stages with levels of detail. F...
Location Choice Factors of Underground Performative Art Events in the City Tüzün, Ateş Baran; ÇALIŞKAN, OLGU; TÜMTÜRK, ONUR; Urban Design in City and Regional Planning Department (2026-4-13) Underground performance arts create the richness of the urban cultural characteristics, however the spatial factors that influence the development and location of underground performance arts remain an unexplored aspect ...
INVESTIGATING SPATIAL CONSTRUCTION IN VIDEO GAMES: METHODS, INSPIRATION, AND INTERPRETATION Uçan, Özüm; Çalışkan, Olgu; Urban Design in City and Regional Planning Department (2026-4-10) Virtual cities in contemporary video games are commonly interpreted as representations of real urban environments. This thesis challenges that assumption by approaching game cities not as simplified copies of physical ones...
SURROGATE MODELING OF AERODYNAMIC SURFACES USING GEOMETRIC DEEP LEARNING Arı, Hakan; Manguoğlu, Murat; Alemdar, Hande; Department of Computer Engineering (2026-4-08) Accurate calculation of physical quantities such as surface pressure, wall shear stress, and temperature is crucial in aerodynamic design processes. Data-Driven Deep Learning methods have emerged as powerful surrogate mode...
SURROGATE-ASSISTED AERODYNAMIC DESIGN OPTIMIZATION OF A GENERIC UCAV CONFIGURATION Gişi, İbrahim Berkalp; Eyi, Sinan; Department of Aerospace Engineering (2026-4-08) This study presents a surrogate-based optimization approach to improve the transonic cruise performance of a generic Unmanned Combat Air Vehicle configuration. The geometry is parametrically defined using four design varia...
Uniaxial tensile performance of warp-knitted carbon textile reinforced concrete Güray, Arda; Yaman, İsmail Özgür; Department of Civil Engineering (2026-4) Textile Reinforced Cementitious Composites (TRCC) are innovative construction materials and techniques that combine traditional construction materials with high-strength textiles offering superior characteristics and bette...
Improving the performance of prioritized planning in multi-agent path finding Cabak, Anıl; Polat, Faruk; Department of Computer Engineering (2026-4) MAPF is a fundamental challenge that is frequently encountered in robotics, warehouse automation, and systems with more than one robot. The goal is to find paths for multiple agents that don't collide with each other while...
Development Of Rare Earth Based Conversion Coating With Improved Corrosion Resistance Of High Strength Aluminium Alloys Betin, Tilbe; Aydınol, Mehmet Kadri; Department of Metallurgical and Materials Engineering (2026-4) Aluminium alloys are widely used in industry due to their low density and high mechanical strength achieved through precipitation hardening. However, the heterogeneous microstructure formed by alloying elements increases s...
Exploring the strategies for addressing housing deficits in Ghana: Evidence from the Greater Accra Region Abass, Abubakar Sadıq; Uzun, Cemile Nil; Department of City and Regional Planning (2026-4) This PhD dissertation examines Ghana’s persistent housing deficit as a complex and multidimensional urban challenge rather than a problem of housing quantity alone. It conceptualises housing deficit across four interrelate...

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