Browsing Fen Bilimleri Enstitüsü by Title

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  • A tabu search heuristic for the vehicle routing problem with time deadlines and asymmetric distances 
    Ekmen, Pelin. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Reducing transportation cost and meeting customer requirements on time are the two main targets of transportation, logistics, distribution and supply chain management. In this thesis, we focus on the Vehicle Routing Problem ...
  • A temporal XML data model and its implementation in anaesthesia information systems 
    Ünlü, Oya. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    Information systema are widely used in health domain. In today's world, medical records, hospital systems, anaesthesia information systems are some of the crucial parts of the health systems. Time is very important information ...
  • A theoretical investigation of solvent effect on the conformational equilibria of 2-substituted cyclohexanone ketal derivatives 
    Sağ-Erdem, Safiye. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1995., 1995.)
    The conformational equilibria of 6-substituted-1,4-dioxospiro-[4.5]decanes and 7substituted-1,5-dioxospiro [5.5]undecanes, relatively complex polar systems, with substituents X=-CH3, -F, -CI, -CN, -OH, -OCH3, -N02 have ...
  • A theoretical study on catalytic steps of hydrogen production and purification 
    Sümer, Aslıhan. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    The aim of this thesis is to obtain information on catalytic activity of transition metals used in different steps of hydrogen production and purification. Density functional theory calculations with periodic slabs have ...
  • A theoretical study on dry reforming of methane (CDRM) over cobalt metal 
    Çimenoğlu, Vasfiye. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    The aim of this study is to analyze the adsorption and reaction steps of CDRM on the Co(111) surface by using DFT calculations. In this context, the adsorption/coadsorption of reactants, reaction intermediates, and the ...
  • A theoretical study on the interaction of bimetallic Pt-Ni surface and the reactants of oxidative steam reforming reaction 
    Ercan, Elif. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Pt-Ni bimetallic system is an efficient catalyst for Oxidative Steam Reforming (OSR) reaction; the detailed experimental test results obtained from Pt-Ni system have been already given in literature. In those research ...
  • A tree based categorical variable encoding strategy in supervised learning tasks 
    Gazioğlu, Mine. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Categorical variables are present in most real-world datasets, often consisting of a high number of levels, referred to as high-cardinality categorical variables. Most machine learning algorithms do not have an innate ...
  • A trilevel defender-attacker problem with partial interdiction 
    Çoğal, İlknur. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Terrorism is one of the most serious problems of today's world. Thus, the reliability and robustness of network systems with critical infrastructure are crucial. In this thesis, the best location-allocation strategy is ...
  • A two parameter characterization of edge cracked NiTi shape memory alloy under plane strain conditions 
    Merde, Oğuzhan Fikri. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Shape memory alloys (SMAs) are metallic systems that exhibit reversible, diffusionless, martensitic phase transformation. Employing finite element analyses, the stress fields and crack tip constraints generated are examined ...
  • A two-layer box model for the strait of İstanbul using radial basis function collocation 
    Güngör, Cenk (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2005., 2005.)
    A one-dimensional, two-layer, depth averaged box model was developed to simulate the surface gradient driven steady flow occurring in the Strait of Istanbul (Bosphorus). An efficient meshless numerical scheme based on the ...
  • A two-stage joint inventory and pricing game with capacity commitment 
    Bayramoğlu, Sezin. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    In this thesis a two-stage capacity, inventory, and pricing game is studied. Two competing vendors make a capacity commitment to invest in the rst stage. This capacity limits how much they can produce in order to meet ...
  • A unified approach to speech enhancement and voice activity detection 
    Kasap, Ceyhan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    In this work, a unified system for voice activity detection (VAD) and speech enhancement is proposed. In the proposed system, there is mutual exchange of information between VAD and speech enhancement blocks. A new, robust ...
  • A unified data base aooroach to corporate management 
    Güvençer, A. Feyyaz. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1984., 1984.)
    The aim of this thesis is establishing a management information system in companies whatever its field of specialization. It also supplies some basic concepts of computer to the managers and introduces the activities of ...
  • A virtual path routing algorithm for ATM networks based on the equivalent bandwidth concept 
    Bür, Kaan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1998., 1998.)
    The coexistence of services with different quality of service (QoS) requirements in today's networks makes the efficient use of resources a major issue. It is desirable to improve network efficiency by adaptively assigning ...
  • A way to compare mathematics teacher candidates' mathematical knowledge for teaching: TEDS-M released tests 
    Ertaş, F. Güneş. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    This study aimed to investigate mathematics teacher candidates' mathematical knowledge for teaching (MKT) by using Mathematics Knowledge Instrument for Preservice Primary and Secondary Mathematics Teachers which were Turkish ...
  • A wearable antenna system for structural monitoring of biodegradable magnesium-based suture wires 
    Sezgen, Ozan Furkan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Open-heart surgery is a way of treating various heart problems. It is a challenging operation during which the operating surgeon will cut through the sternum and spread the ribcage to access the heart. After sternotomy, ...
  • ABC conjecture and its implications 
    Koç, Tuğçe. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    In this thesis, our aim is to state the importance of abc conjecture and prove the strong results we obtain with the help of abc conjecture. First, we give necessary notions and tools which are used throughout the thesis. ...
  • Aberrant global DNA methylation in neurodegeneration: ALS and trinucleotide repeat disorders 
    Hamzeiy, Hamid. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    Amyotrophic lateral sclerosis (ALS) is a late onset neurodegenerative disease of the motor neurons, leading to death within two-three years of onset. Extensive studies have thus far helped identify many genetic causes for ...
  • Abnormal respiratory event detection in sleep: Prescreening system with smart wearables 
    Camcı, Burçin. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)
    Sleeping is an important activity to monitor since it has a crucial role in the over all health and well-being of the people and the society. The problems in sleep affect the daily lives of people negatively and a great ...
  • Absence epilepsy in Turkish patients: a novel gene at susceptibility locus 2q36 and the role of GABRG2 
    Çapan, Özlem Yalçın. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Idiopathic absence epilepsies (IAE) are complex disorders mainly caused by genetic factors. Two major whole-genome linkage studies performed on many IAE samples pointed to chromosome 2q36 as a susceptibility locus for ...

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