Graduate School of Natural and Applied Sciences

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Recent Submissions

Stability of acidified milk drinks: Comparison of high hydrostatic pressure (HHP) and thermal treatments Tirpanci, Bige; Özel, Barış; Oztop, Mecit Halil; Alpas, Hami (2023-02-01) © 2022 Elsevier LtdThere is a search for effective stabiliser activity and alternative pasteurisation techniques for acidified milk drinks (AMD). In the present study, AMD were prepared at three different pH (4.0, 4.5 and ...
INVESTIGATION OF FATIGUE CRACK BEHAVIOR ON NEAR THRESHOLD REGION OF AISI 4340 STEELS FOR DIFFERENT HEAT TREATMENT CONDITIONS Çalışkan, Salim; Gürbüz, Rıza; Department of Metallurgical and Materials Engineering (2023-1-27) Damage tolerant approach is an important phenomenon in engineering practice and must be evaluated at the onset of the design stage for components that are subject to cyclic loading during functioning; if not, devastating f...
Composite polysaccharides and protein hydro-gels for controlled release applications: Formulation, characterization and release studies Özel, Barış; Öztop, Halil Mecit; Aydın, Özlem; Department of Food Engineering (2023-1-26) Hydrogels are highly hydrophilic polymer gels with macromolecular three-dimensional networks. They can swell by absorbing and retaining large amount of water without dissolving and losing their integrity. Polysaccharides a...
LAMINAR FLAME PROPAGATION STUDIES IN A SPHERICAL COMBUSTION CHAMBER; EXPERIMENTAL AND NUMERICAL APPROACHES Kıymaz, TAHSIN BERK; Yozgatlıgil, Ahmet; Gökalp, İskender; Department of Mechanical Engineering (2023-1-25) Global interest in hydrogen as an energy carrier for combustion and fuel cell applications to reduce CO2 emissions is expanding. However, the use of 100% hydrogen in combustion applications is still technologically and log...
Neotethyan tectonostratigraphic evolution of SE Anatolian basin, Türkiye Tuncer, Mustafa; Nuretdin, Kaymakcı; Department of Geological Engineering (2023-1-25) The SE Anatolian basin constitutes the northern margin of the Arabian Plate in SE Türkiye and contains a continuous sedimentary succession from the pre-Cambrian to the recent. It has evolved mainly into four tectonic pha...
Resistance Welding of PAEK / Carbon Fiber Thermoplastic Composite Laminates Martı, İsmail Baha; Kaynak, Cevdet; Department of Metallurgical and Materials Engineering (2023-1-20) The main purpose of this thesis is, as the first time in the literature, to investigate usability of resistance welding joining method for poly(aryletherketone) (PAEK) thermoplastic matrix carbon fiber (CF) reinforced comp...
CHARACTERIZATION OF LATENT THERMAL ENERGY IN A STORAGE UNIT WITH FIBONACCI-SEQUENCE-INSPIRED FINS Baghaei Oskouei, Seyedmohsen; Bayer, Özgür; Department of Mechanical Engineering (2023-1-19) Latent thermal energy storage (LTES) is a viable method to mitigate one of the main problems with renewable energy sources, such as solar energy, which is their intermittent nature. LTES units take advantage of the large l...
COMPUTATIONAL MECHANICS FOR SOFT BIOLOGICAL TISSUES Altun, Cem; Dal, Hüsnü; Department of Mechanical Engineering (2023-1-17) Computational biomechanics is an active research area, not only to understand the mechanisms behind the behaviours of biological tissues but also to develop medical techniques for surgeries, rehabilitations, and diseases. ...
Investigation of Droplet Flame Interactions through Experimental and Numerical Approaches Kaya Eyice, Deniz; Yozgatlıgil, Ahmet; Aksel, M. Haluk; Department of Mechanical Engineering (2023-1-12) Spray combustion applications involve complex phenomena such as atomization, droplet vaporization, mixing, turbulence, chemical kinetics, and the interaction of these processes. In two-phase combustion, one of the fundamen...
Performance prediction of implicitly defined estimators of non-random parameters Mehmetcik, Erdal; Candan, Çağatay; Orguner, Umut; Department of Electrical and Electronics Engineering (2023-1-11) This thesis study is concerned with performance prediction for estimators with non-random parameters. A rather general class of estimators, called implicitly defined estimators (IDEs), is of main interest. An implicitly de...
CLASSICAL AND NUMERICAL SOLUTIONS OF THE VISCOUS BURGERS EQUATION Koşar, Melisa; Okutmuştur, Baver; Department of Mathematics (2023-1-11) In this study, the viscous Burgers equation is studied both theoretically and numerically. Before introducing our model of interest, we provide a brief historical concept of the equation where we also remind the reader som...
Computational Investigation of Urban Heat Island Mitigation Scenarios in Educational Buildings Yazıcıoğlu, Gülin; Gürsel Dino, İpek; Meral Akgül, Çağla; Department of Architecture (2023-1-11) Recent years have witnessed rapid urbanization due to an increase in population in cities. This will lead to the replacement of natural landscapes with impervious surfaces, and the acceleration of anthropogenic activities,...
UNSTEADY AERODYNAMICS OF PLUNGING AND STATIONARY SYMMETRIC AIRFOILS AT LOW REYNOLDS NUMBERS Peerzada, Kifa; Kurtuluş, Dilek Funda; Department of Aerospace Engineering (2023-1-10) The unsteady behavior of the flow around a symmetric NACA 0014 airfoil is analyzed taking into consideration an oscillating motion in a sinusoidal pure-plunge mode as well as the stationary condition. Numerical simulations...
THE RELATIONSHIP BETWEEN THE CREATIVE COMMUNITY AND URBAN IDENTITY: THE CASE OF URLA Çınar, Sena; Büyükcivelek, Ahmet Burak; Department of City Planning (2023-1-9) Nowadays, creativity is fundamental in many aspects of life. A core component of the creative economy era, the creative community refers to a community of creative class, creative entrepreneurs, authorities, and local peop...
SOMATIC COPY NUMBER VARIANT LOAD IN NEURONS OF HEALTHY CONTROLS AND ALZHEIMER’S DISEASE PATIENTS Turan, Zeliha Gozde; Somel , Mehmet; Idil, Yet; Department of Biology (2023-1-9) The possible role of somatic copy number variations (CNVs) in Alzheimer’s disease (AD) aetiology has been controversial. Although cytogenetic studies suggested increased CNV loads in AD brains, a recent single-cell whole-g...
Activation of survival pathways in nutrient restricted colorectal cancer cells Oral, Göksu; Banerjee, Sreeparna; Department of Biology (2023-1-9) Limited nutrient availability in the tumor microenvironment can cause metabolic rewiring of cancer cells, resulting in the activation of various stress response pathways such as autophagy for survival. Our study showed for...
Investigation of inertial particle separator from a broader perspective Daldal, Abdurrahman Burak; Eyi, Sinan; Department of Aerospace Engineering (2023-1-06) Inertial particle separator (IPS) is an engine integrated device to provide protection for foreign objects such as sand, dust etc. Due to the fact that IPS performance has a direct impact on the engine life, accurate estim...
ENHANCING UML PORTS AND CONNECTORS TO INCREASE THE REUSABILITY AND PERFORMANCE OF AVIONICS SOFTWARE Kocataş, Alper Tolga; Doğru, Ali Hikmet; Department of Computer Engineering (2023-1-5) Model-driven software development (MDSD) techniques have evolved vastly over the recent decades. MDSD aims to raise the abstraction level, allowing developers to produce accurate designs which are also easier to verify. Th...
Predictive Power Of Values, Beliefs, Norms And Inlusion Of Nature In Self On Young Students' Water Consumption Behavior Alpay, Bora; Öztekin, Ceren; Department of Science Education (2023-1-05) The aim of this study is to examine the water consumption behaviors of middle school students within the scope of the Value Belief Norm Theory. The Theory include constructs (i.e., values (egoistic, altruistic and biospher...
Privacy-preserving horizontal federated learning methodology through a novel boosting-based federated random forest algorithm Gençtürk, Mert; Çiçekli, Fehime Nihan; Department of Computer Engineering (2023-1-04) In this thesis, a novel federated ensemble classification algorithm for horizontally partitioned data called Boosting-based Federated Random Forest (BOFRF) is proposed, which not only increases the predictive power of all ...

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