Fen Bilimleri Enstitüsü: Recent submissions

  • Effect of the direction of the electric field on the interfacial instability between a newtonian fluid and a viscoelastic polymer 
    Nurocak, Aybike. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Micro channels are widely used in many industrial applications as they offer the ability to work in small volumes, consume low energy and less time, and reduce costs. Another important application of microfluidics is to ...
  • A process variable study of apple pectin extraction 
    Dereboylu, E. Ayça. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1985., 1985.)
    Dried Amasya apple pomace was used for extraction of apple pectin in this process variable study. Process variables of the extraction process were chosen as extraction temperature, duration of the extraction and acidity ...
  • Understanding the membrane penetration of antimicrobial 
    Alaybeyoğlu, Begüm. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    The studies on β-lactam antibiotics have found great interest since the use of antimicrobial therapy became widespread and as a result, bacteria started to develop resistance against β-lactam antibiotics. The most effective ...
  • Optimal design under uncertainty via CVaR (conditional value at risk) 
    Kumbasar, Sıla. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    The aim of this thesis work is to investigate the possibility of controlling and (re)shaping the statistical probability distribution of optimal objective function values in optimization problems related to process synthesis, ...
  • Investigation of conformational fluctuations in protein dynamics: torsional Gaussian Network Model 
    Özbakır, Harun Ferit. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Elastic network models based on Normal Mode Analysis (NMA) are very useful in determining the conformational fluctuations that would affect the functions of proteins. Gaussian Network Model (GNM) is proved to be a very ...
  • Investigation of coupling between collective dynamics and function of enzymes 
    Kocaman, Duygu. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    To bridge the structure and function of an enzyme through dynamics is an important problem in protein science. For this aim, the vibrational dynamics for a set of enzymes with different biological units and fold types are ...
  • An experimental study on the effect of metal loadings on WGS performance of Au-Re system 
    Yoğurtçu, Burcu. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    The aim of the current work is to understand the effect of Au and Re loadings and Au:Re loading ratio on the WGS performance of the Au-Re/CeO2 system under the flow of realistic feeds. In this experimental work, water-gas ...
  • Functional analysis of the genes in the glucose metabolic network by a system based modular approach 
    Yüzüak, Okan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    In this study, all proteins associated with the Process Gene Ontology (GO) term “Glucose Metabolic Process” were collected and a network of all reported interactions among these entities was constructed with a stringent ...
  • Prediction of potential inhibitors against Yersinia YopE and Salmonella SopE by virtual screening and docking 
    Özbüyükkaya, Gizem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Outer proteins of gram negative bacteria Yersinia and Salmonella secrete virulence factors that invade eukaryotic cells via type III secretion system. Yersinia outer protein E, YopE, and Salmonella outer protein E, SopE, ...
  • A mechanistic view on rRNA - antibiotics binding 
    Güneş, Mehmet Ünal. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    The ribosome, which is the macromolecular machine for protein synthesis, is one of the most striking targets for the antimicrobial drugs. Antibiotics that block the protein synthesis in various ways in ribosome have different ...
  • Mathematical modelling of a refinery furnace 
    Burhanoğlu, Yüksel. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1985., 1985.)
    In this study, a mathematical model for the multiple fuel fired, Born type refinery furnace is derived in order to find temperature distribution in the furnace and vapor fraction of the charge. The model is solved by the ...
  • Beta-lactamase binding to blip and blip based peptides 
    Doğan, Aslıgül. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    Extensive use of antimicrobial agents has generated selective pressure on bacteria and resulted in development of resistance to beta-lactam antibiotics. The main resistance mechanism of bacteria is the production of ...
  • Integrated analysis of drug resistance in Saccharomyces Cerevisiae identification of key transcription factors involved in drug resistance 
    Öç, Şebnem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    In this study, the transcriptome data from the three homozygous deletion mutants, Δqdr3/Δqdr3, Δpdr3/ Δpdr3, and Δho/Δho, of Saccharomyces cerevisiae grown in glucose or ammonium limited continuous cultures were investigated ...
  • Catalytic microchannel configurations for hydrocracking of Fischer-Tropsch hydrocarbons 
    Hösükoğlu, Mehmet İrfan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    Petroleum crude oil is an important commodity as the primary source of energy and petrochemical industry but su ers from decreasing reserves and quality. Hydrocarbon commodities can also be produced synthetically by ...
  • Investigation of CO oxidation kinetics over gold catalysts 
    Ülgüel, Caner. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    This experimental study involves preliminary work conducted over 0.5wt%Au/Al2O3 and kinetic study of low-temperature CO oxidation over 1wt%Au/1.25-wt%MgO/Al2O3 prepared by the homogeneous deposition-precipitation method. ...
  • Investigation of linear paths in human wnt signaling network 
    Nalbantoğlu, Bahar. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    Recently, the evolutionarily conserved signaling pathways which are involved in embryonic development are on the march for many research since the deregulations seen in the mechanism of these patways results in several ...
  • Investigation of the interfacial instability between a newtonian fluid and a polymeric fluid under the influence of an electric field for microfluidics applications 
    Ersoy, Gülsüm. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    Microfluidic devices are widely used in various industries as they provide many advantages such as easy control of chemical reactions, heat and mass transfer, short analysis time and consumption of chemicals in small ...
  • Catalyst development for hydrocarbon production by carbon monoxide hydrogenation 
    Erol, Murat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    The aim of this work was the development and testing of supported rhodium catalysts for hydrocarbon production by CO hydrogenation. Four different catalysts were prepared by sequential or co-impregnation to incipient wetness ...
  • Drifts study of selective CO oxidation on Au/Al2O3 catalyst 
    Leba, Aybüke. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    The aim of this study was to investigate the surface species formed during the selective CO oxidation over 1 wt. % Au/Al2O3 catalyst prepared by homogeneous deposition-precipitation method. The surface analyses were carried ...
  • Prox kinetics over Pt-Sn/AC under fully realistic reaction conditions 
    Eropak, Belkız Merve. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    This experimental study comprises a kinetic study of preferential CO oxidation (PROX) in the presence of H2, CO2, H2O, and CH4 over HNO3-oxidized activated carbon supported 1wt.%Pt 0.25wt.%Sn/AC catalyst prepared by the ...