Fen Bilimleri Enstitüsü: Recent submissions

  • Hysteretic behaviour of a simple charge density wave system 
    Terzi, Mustafa Mert. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    In this thesis, the hysteretic behaviour in a simple 1D Charge Density Wave (CDW) system is investigeted. Such systems can be represented as elastically coupled particles in a periodic potential with a random phase-offset ...
  • Exact renormalization group on point interactions 
    Eröncel, Cem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    The goal of this thesis is to present a non-perturbative renormalization of point interactions in non-relativistic quantum mechanics using Exact Renormalization Group (ERG) techniques. The analyzed model is a particle ...
  • Physical modeling of drug delivery in solid tumors 
    Öztürk, Deniz, 1977- (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Effective delivery of drugs is a major concern in cancer treatment. For a good treatment response, systemically administrated drugs must reach cancer cells in su - cient amounts, and not induce intolerable toxicity in ...
  • Bose-Einstein condensation on a Reimannian manifolds with nonnegative Ricci curvature 
    Tapramaz, Ferzan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    In this thesis, the properties of the Bose-Einstein condensation in at spaces are reviewed. Three dimensional weakly interacting Bose systems are examined by using the Bogoliubov approximation. The heat kernel of the ...
  • From five dimensional flat spacetime to our four dimensional braneworld via Kaluza-Klein 
    Şengör, Gizem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    In five dimensional cosmological models, the convention is to include the fth dimension in a way similar to the other space dimensions. In this work we attempt to introduce the fifth dimension in a way that a time dimension ...
  • A new tracking algorithm for atlas trigger 
    Sarıkaya, Saime. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    The Large Hadron Collider (LHC) is the world's highest energy accelerator with the highest luminosity, which aims to nd answers to the most fundamental questions of particle physics. It leads us to the discoveries of new ...
  • Determination of density of states of n-type hydrogenated amorphous silicon by phase shift analysis of modulated photocurrent method 
    Kocabıyık, Ferhat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1995., 1995.)
    Determination of density of states of hydrogenated amorphous siliconby phase shift analysis of modulated photocurrent.Determination of the energetic distribution of localized statesdue to random network and structural ...
  • Development of a photoacoustic microscopy system 
    Kipergil, Esra Aytaç. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Photoacoustic microscopy (PAM), as an imaging modality, has shown promising results in imaging angiogenesis and cutaneous malignancies like melanoma, revealing systemic diseases including diabetes, hypertension, coronary ...
  • Physics of diffuse optical imaging 
    Uluç, Nasire. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Diffuse optical tomography (DOT) is a functional imaging modality which con- sists of transilluminating of a volume. This diagnosis technique is particulary useful for characterizing thick tissue especially for breast ...
  • Physics of bioluminescent light transport in tissue 
    Demirkıran, Aytaç. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    The main objectives of this thesis are to investigate and describe the physics of bioluminescent light transport in biological tissues, analyze the bioluminescence tomography (BLT) source reconstruction, and formulate the ...
  • Macrospin model of magnetization dynamics governed by Landau-Lifshitz-Bloch equation of motion 
    Kılıç, Ufuk. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    The main physical limitation in the down-scaling of magnetic data storage technologies, namely the superparamagnetic effect, can be pushed back considerably by using high perpendicular magnetic anisotropy materials. The ...
  • Fermi-lat and chandra studies of shell like supernova remnants 
    Bozkurt, Mustafa. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Supernova Remnants (SNRs) have long been considered to be the primary source of galactic cosmic rays (CRs) having energies below the so called \knee", 1015 eV. CRs are accelerated by SNRs which transfer some of their ...
  • Mathematical modeling of MMPS in canser 
    Yonucu, Şirin. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Social Sciences, 2012., 2012.)
    New approaches like mathematical modeling appeared in biology to explain the accumulation of extensive data about complex biological systems like tumors. Mathematical models of tumors which have been studied for over 50 ...
  • Geometric formulation of lagrangian mechanics and symmetries 
    Türeli, Sina. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    We start the thesis by covering the geometric formulation of time-independent and time-dependent Lagrangian mechanics and the concept of dynamical symmetry. Then we give two applications. First we review and tie together ...
  • Radio frequency energy recovery for particle accelerators 
    Yıldız, Veli. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    During the operation of particle accelerators considerable amount of power coming to RF cavities is converted to heat in load resistors placed after RF cavities. When the CERN’s Super Proton Synchrotron is analyzed as an ...
  • Cosmological perturbations in string gas cosmology 
    Özsoy, Ogan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    The current model of the early universe is mainly based on the in ationary scenario. Despite its phenomenological success in providing a solid mechanism for the generation of cosmological uctuations in the early universe, ...
  • Triggerless particle identification systems using FPGA 
    Güney, Veli Uğur. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    As the beam energy and event rate in experimental particle physics setups increases, the acquisition and analysis of the data created at the experiments become more complex. In the beginning, counting the recorded events ...
  • Unitary group and quantum group invariant q-oscillators and fibonaccization 
    Ünel, N. Gökhan. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1994., 1994.)
    After a review of different types of q-oscillators and the relationship between their creation/ annihilation operators, the derivation of the q generalized version of the LeviCivita tensor (E) is given. The properties of ...
  • Deforming SO(4,2) generators 
    Kılıç, Delalcan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    The energy spectrum and degeneracy of a Hamiltonian can be studied using either the theory of special functions or spectrum generating algebras. In this thesis the second approach is used for the analysis of the H-atom ...
  • Laser assisted growth of silicon nano-structures 
    Demirbaş, Elif. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    In this study, the aim is to produce homogeneous porous silicon(PS) nanostructures and then to observe the effect of resistivity of starting silicon samples. P-type silicon wafers with di erent resistivity are prepared by ...