Fen Bilimleri Enstitüsü: Recent submissions

  • Direct displacement based design of R/C structural walls 
    Bozer, Ali. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2003., 2003.)
    It is known that the conventional code based design has some drawbacks in estimating actual structure performance which stems from inconsistency between assumed force reduction factors and actual ductility demand as well ...
  • Performance of higher order finite elements 
    Harmandar, Ebru. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2002., 2002.)
    This study is focused on the evaluation of the performance of the higher order finite elements for the solution of basic and complex problems. Performances of higher order finite elements are compared with those of the ...
  • A comparative study of passive control of structures 
    Erkal, Aykut. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2001., 2001.)
    Passive energy dissipation systems are described for the control of structures against earthquake vibrations. Classification of passive energy dissipation systems is made and discussion of the behaviour of individual passive ...
  • Development of a highway safety auditing program for Turkey 
    Keskin, Halis Bora. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2001., 2001.)
    Road accidents are serious problems throughout the world, in social, health and economic terms. The number of road accidents in Turkey tend to increase at a rate of approximately 20 per cent a year and most of the road ...
  • Effect of curing on resistance to deicing salt scaling, freezing-thawing and chloride penetration of fly ash concrete 
    Baştopçu, Mehmet Emre. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2000., 2000.)
    The four concrete mixtures used in this study contained 0%, 15%, 30%, and 40% fly ash replacing portland cement by mass. To determine the effect of curing type, three different curing conditions were used. Curing Type 1 ...
  • The effect of concrete quality on earthquake design: economical aspects 
    Akakın, Tümer. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2001., 2001.)
    There is a great advance in maximum concrete compressive strengths reached throughout years. So, today we have a large variety of concrete classes that can be produced by the concrete industry. But, the use of higher ...
  • Strengthening of reinforced concrete beams using externally bonded FRP plates 
    Atmaca, Savaş. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2001., 2001.)
    In recent years, occurrence of great earthquakes in Turkey has resulted in important damages in structures. Due to this phenomenon, repair and/or retrofit of the existing structures have become an important issue. In ...
  • Intelligent transportation systems for commercial vehicle operations :|a case study in Turkey 
    Bilgili, Hüseyin Alper. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2000., 2000.)
    Intelligent Transportation Systems for Commercial Vehicle Operations (ITS/CVO) is the application of advanced information technologies to commercial vehicle operations. This study aims to analyze the feasibility of this ...
  • Influence of bracing elements on the seismic response of multistorey frames 
    Çeribaşı, Seyit. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2001., 2001.)
    The aim of this study is to deal with the influence of energy dissipation devices (braces) on the seismic response of multistorey frames. A base frame and five retrofitted frames are designed. Behavior of the original and ...
  • Analysis & design of reinforced concrete circular water tanks 
    Abu Gharbiya, Hussein. (Thesis (M.S.) - Robert College. Faculty of Graduate School of Engineering, 1964., 1964.)
  • Design of a reinforced concrete highway through arch bridge 
    Karasaban, Mahmut Şevket. (Thesis (M.A)-- Engineering School of Robert College, İstanbul-Turkey, 1936., 1936.)
  • Normal forms, nonlocal chaotic behaviour in sportt and NMR systems 
    Perdahçı, Nazım Ziya. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2002., 2002.)
    Poincaré's theory of normal forms is applied to a number of simple chaotic Sprott flows that have resonant eigenvalues. It is shown that the normal form expansion can give significant information not limited to the local ...
  • Quantum group structures associated with invariances of some physical algebras 
    Kayserilioğlu, Ufuk. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2005., 2005.)
    In this study, the anticommuting spin algebra is introduced and it is shownto be invariant under the action of the quantum group SOq=-1(3). Furthermore, itsrepresentations and Hopf algebra structure are studied and found ...
  • A ramond-nevu schwarz string one end fixed 
    Arapoğlu, A. Savaş. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2005., 2005.)
    We study an open string with one end free and the other fixed on a D0-brane as a qualitative guide to the spectrum of hadrons containing one very heavy quark. We first consider the bosonic degrees of freedom, then introduce ...
  • Dense molecular gas tracers in water megamaser galaxies 
    Farhan, Ahlam. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2021., 2021.)
    Since their discovery in 1979, water megamasers (H2OMMs) have been of special interest for both astrophysicists and cosmologists. The unique environment they are emitted from is interesting, being located inside accretion ...
  • Multiparameter generalization of deformed particle algebras 
    Arıkan, Ali Serdar. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2004., 2004.)
    In this study, we generalize deformed boson and fermion algebras by considering as many deformation parameters as possible. The restriction on the number of deformation parameters emerges from the relations leaving the ...
  • Adiabatic solutions in general relativity and boundary symmetries 
    Kutluk, Emine Şeyma. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    We investigate adiabatic solutions to general relativity for a spacetime with spatial slices with boundary, by Manton approximation. This approximation tells us for a theory with a Lagrangian in the natural form, a motion ...
  • Measurement of heat, strain, and refractive index with multicore optical fibers 
    Güvenç Kılıç, Sema. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    In this thesis, different types of multicore optical fibers are designed and employed in the optical sensing experimental setups to investigate their detection abilities of temperature, heat transfer rate, strain, and ...
  • Some new cosmological applications of the energy-momentum squared gravity 
    Uzun, Nebiye Merve. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2021., 2021.)
    We investigate two specific forms of a new-type of modified gravity called Energy Momentum Squared Gravity (EMSG) constructed by the addition of the term f(TµνT µν) to the Einstein-Hilbert action with a cosmological constant ...
  • Frequency-resolved photoconductivity studies in amorphous chalcogenide films 
    Akat, Ercüment. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2000., 2000.)
    Frequency-resolved photocurrent measurements (FRPC) were carried out on amorphous chalcogenide films such as AsSeSb AsSe and AsSeTe, by a method called frequency-resolved spectroscopy (FRS) as a function of temperature ...