Fen Bilimleri Enstitüsü: Recent submissions

  • Investigation of CO hydrogenation catalysts for producing oxygenated hydrocarbons 
    Kabakçı, Didem Büşra. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    The objective of this study was to test the performance of promoted rhodium catalysts supported on silica for oxygenated hydrocarbon (particularly ethanol) production by CO hydrogenation. Two different catalysts were ...
  • An experimental study on the stability of the interface between immiscible liquids in a micro channel subject to an electric field 
    Eribol, Pınar. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    Micro channels offer many advantages for both industrial and laboratory applications. They provide the use of small amounts of sample, reduced cost and faster analysis. The flow regime is laminar in micro channels. ...
  • Effect of a constant heat source on evaportive instability in a solid-liquid-vapor system 
    Karaçelik, Aslı. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    When a liquid underlies its own vapor, convection may arise due to evaporation without gravity or surface tension gradient e ects. This process is named as pure evaporative convection. In this study, standard linear stability ...
  • Investigation of water gas shift reaction over MOF assisted precious metal catalysts 
    Kavaklı, Hayri Onur. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    Low temperature Water-Gas Shift (WGS) reaction is investigated over MOFsupported Pt/MIL-53(Al) catalysts in 250-300 oC range and steam-to-carbon (S/C) ratios of 1.67, 2.33 and 3. Pt metal loadings of 0.5, 1.0 and 1.5 per ...
  • An experimental study on mixed reforming performance of Co-based catalysts 
    Erşahin, Serhat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    The major purpose of this research study is to investigate the mixed reforming, both CDRM + SR and CDRM + POX, activity over Co-Ce/ZrO2 bimetallic catalyst, and to experimentally determine the optimal mixture of oxygen ...
  • Identification of TPX inhibitors against pathogen-host interactions 
    Deniz, Utku. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    Antibiotic resistance is a major health issue as due to the emergence of multidrug resistant bacteria. Thus, there is an increasing need for the identification of new drug targets and discovery of novel scaffolds in the ...
  • Solution of the linearized equations of multicomponent mass transfer with chemical reaction by matrix methods 
    Şentarlı, İnci. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1985., 1985.)
    The linearized equations of multicomponent mass transfer with chemical reaction are solved by matrix methods fora film model. The molar flux of each component at the film boundary and the concentration profile of each ...
  • Conformational transitions of proteins using multi-scale modeling approaches 
    Uyar, Arzu. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    A detailed analysis on a dataset consisting of 30 proteins was performed using a hybrid simulation technique. This iterative technique, named as ANM-MC, generates a targeted pathway between two conformations, where the ...
  • Investigation of CO hydrogenation catalysts for direct synthesis of dimethyl ether 
    Ekmen, Çiğdem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    The aim of this work was to prepare and test bi-functional direct DME synthesis catalysts, including commercial ones, involving methanol synthesis and methanol dehydration functions. Catalyst beds were prepared by physical ...
  • Oxidative coupling of methane over lanthanum and strontium promoted magnesium catalyst 
    Sezen, Sezin. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    The oxidative coupling of methane (OCM) over 10wt.%SrO/10wt.%La2O3/MgO, in the form of particulate and monolithic structures, was investigated in this thesis. The OCM performance of the catalyst, which was prepared using ...
  • Investigation of bacterial infection strategies through bacteria-human protein-protein interactions by bioinformatics approaches 
    Gürses, Büşra. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    Infectious diseases, which have been a serious threat for human life in ancient times, is still leading the causes of death and disability worldwide. Pathogens (viruses, bacteria, protozoa, fungi, etc.) express a wide range ...
  • A mechanistic view of cullin neddylation: allosteric conformational control of E3-ring ligases 
    Yıldırım, Melis. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    Cullin-RING E3 ligases (CRLs), which constitute a superfamily of RING type E3 ligases, regulate ~20% of protein degradation by the ubiquitin-proteasome system in the cells. Cullin neddylation activates CRLs by urging a ...
  • A study on kinetics of methane oxidative steam reforming (OSR) over PPt-Ni/δ-Al2O3 bimetallic catalysts 
    Erdinç, Elif. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    The aim of the current study is to obtain a reliable power law type rate expression for methane OSR over Pt-Ni/δ-Al2O3 catalyst valid for practical experimental condition ranges. In this context, 0.2wt.%Pt-10wt.%Ni/δ-Al2O3 ...
  • Dynamic nature of H1N1 influenza virus hemagglutinin 
    Erge Akbaş, Zeynep. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    Dynamics of antigenic and host receptor binding behavior of a virus binding protein can be altered via mutations that lead to escape from immune recognition. The main focus of this study is to investigate the dynamic ...
  • Parametric investigation of water gas shift over Pd based catalysts 
    Ertem, Özge. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    The purpose of this study is to investigate WGS reaction over Pd based catalysts, cheaper alternatives of Au and Pt, and explore the impact of reactor structuring on CO conversion. The Pd based catalysts used in this ...
  • The theoretical analysis of the interaction between methane dehydrogenation and carbon dioxide dissociation products with Ni and PtNi surfaces 
    Ayvaz, Merve. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Catalytic Dry Reforming of Methane (CDRM), in general sense, involves simultaneous carbon dioxide disproportionation yielding carbon monoxide and surface oxygen, methane dehydrogenation yielding hydrogen, CHx groups and ...
  • An experimental study on oxidative coupling of methane over Mn/Na2WO4/SiO2 catalyst 
    Düşova, Yeşim. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    The oxidative coupling of methane (OCM) over Mn/Na2WO4/SiO2 catalyst was investigated in this work. The 2wt%Mn/5wt%Na2WO4/SiO2 catalysts were prepared using various methods (such as incipient to wetness impregnation, sol-gel ...
  • An experimental study on cobalt based catalytic DRY reforming of methane catalysts 
    Yassı, Cansu. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    The aim of this study is to design Co-based CDRM (catalytic dry reforming of methane) catalysts and to understand the CDRM reaction kinetics over their surface. The thesis consists of two parts. In the first part, a 5 wt% ...
  • Determination of thermophysical properties of polymer-solvent pairs by gas chromatography 
    Öner, Mualla. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1985., 1985.)
    In this study, thermophysical properties like Flory-Huggins interaction parameter ( X ), weight fraction infinite dilution activity coefficient (), heat of solution (Hs) and diffusion coefficient (D1) were determined for ...
  • Identification of allosteric AKT inhibitors by computational methods 
    Gürsoy Yılmaz, Oya. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    AKT kinases are known to be major contributors to the development of many human cancers according to preclinical data and studies of tumor specimens. Design and development of small molecule inhibitors targeting AKT and ...