Fizik: Recent submissions

  • On local inflation and cosmolagical perturbations 
    Ertan, Erol. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    It is known that a scale free spectrum of the density perturbations gives appropriate initial conditions for the structure formation in the universe. In this thesis, we determine the power spectrum of the density perturbations ...
  • Photoacoustic spectroscopy 
    Çolak, Arzu. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    In its broadest sense, optical spectroscopy can be defined as the study of the interaction of light with matter. Optical spectroscopy is invaluable in studies on clean media but there are several instances where it is ...
  • Ground state properties of Frenkel-Kontorova models with scalloped potentials 
    Yolcu, Cem. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    In this thesis, the ground state con guration of the Frenkel-Kontorova model with a scalloped external potential is investigated. The method of e ective potentials of Gri ths and Chou is extended by a novel approach involving ...
  • Possible evolutions of isolated neutron stars 
    Şahin, Serkan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    Neutron stars are end products of stellar evolution, like black holes and white dwarfs. Since they radiate in all bands of the electromagnetic spectrum and as their densities and magnetic fields are much higher than normal ...
  • Electro optical characterization of a silicon microsphere 
    Ayaz, Ulaş Kemal. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    In today’s world, with the development of optoelectronics, metal interconnections are no longer limiting factor for the performance of electronic systems. Replacing the metal interconnections by optical interconnections ...
  • Machine learning algorithms in classification and diagnostic prediction of cancers using gene expression profiling 
    Altındal, Tuba. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    The performance of certain machine learning algorithms in classification and diagnostic prediction of small round blue cell tumors (SRBCTs) of childhood is investigated. Before classifying samples, including both tumor ...
  • Grand unified models and neutrino oscillations 
    Neyzi, Fahrünisa. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1982., 1982.)
  • Nonlinear oscillations of proteins 
    Demir, Veysi. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    Slow modes of proteins exhibit nonlinear characteristics. Large deformations in proteins correspond to collective deformations. These are at relatively low energy compared to kBTroom where Troom is approximately 3000K. ...
  • Searching for solar axions in cast-cern solar telescope 
    Doğan, Özgen Berkol. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    In this work, a general overview of the CAST experiment is given, and solutions to the specific problems that arose during the preperation time for the Phase II is explained, as well as the steps that were taken to reach ...
  • Structure formation on a quasicrystalline substrate 
    Bilki, Burak. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    In recent Low Energy Electron Diffraction (LEED) Experiments by Flüuckiger et al. on periodic Al films grown on a quasicrystalline substrate, it was observed that depending on the thickness of the Al film grown, the ...
  • The application of the modified form of bath's law to the North Anatolian Fault Zone (NAFZ), Aegean Graben System and Cyprus Arc Zone 
    Yalçın, Sibel Ebru. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    Earthquakes and aftershock sequences follow several empirical scaling laws: One of these laws is Bath's law for the magnitude of the largest aftershock. In this thesis, Modified Form of Bath's Law and its application to ...
  • Cellular automata modelling of multilane highway traffic 
    King, Hunter. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    Cellular automata (CA) are often used to model traffic flow with the intent to both better understand the internal dynamics of traffic from a statistical physics point of view, and to create virtual experiments which cannot ...
  • Path integrals in non-relativistic quantum mechanics 
    Düztaş, Koray. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    This thesis starts with a brief review of local and global approaches to classical mechanics. Path integral formalism, which constitutes a global approach to quantum mechanics, is introduced. A brief history of non-relativistic ...
  • Generation of 2D and 3D quasicrystalline structures using the projection method 
    Milas, Peker. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    Two algorithms for generating 2D and 3D quasiperiodic lattices by the strip projection method are presented. For the 2D algorithm a 5D simple cubic integral lattice with unit lattice constant is used as root lattice with ...
  • Normal form approach to some chaotic sprott systems 
    İldeş, Medine. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    In this study, the normal form method which had been previously applied to three of the Sprott systems is applied to three other Sprott systems with a different eigenvalue structure of their linearized parts. It is seen ...
  • Terrain induced wind profiles 
    Bayraktar, Evren. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    In this study, the WOCSS meteorological model was used to produce threedimensional gridded wind fields. The results simulated by WOCSS were visualized in MATLAB environment. The WOCSS model was performed using a sample ...
  • Energy resolution and response analysis of the wedge 2-13 of the hadron forward calorimeter with electrons 
    Deliömeroğlu, Mehmet. (Thesis (M.S)-Bogazici University.Institute for Graduate Studies in Science and Engineering, 2005., 2005.)
    CMS is one of the major detectors in the Large Hadron Collider (LHC) and it isbuilt to check postulations of the standard model, especially, the Higgs mechanism. TheHF calorimeter is part of the CMS detector to detect ...
  • Inhomogeneous quantum invariance group of commuting fermions 
    Altıntaş, Azmi Ali. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2004., 2004.)
    Since the middle of the twentieth century, physicists have concentrated on finding quantum counterparts of classical systems. When a classical system is quantized its invariance group may still be a classical group. In the ...
  • Weinberg-Salam model and e+ e- -> m+ m- process 
    Kalaycı, Jan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1981., 1981.)
  • Approximate ground state energies of one dimensional potential wells by the s-matrix formalism 
    Erkol, Hakan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2003., 2003.)
    One dimensional potential wells are described as a collection of consecutive thin slices, each approximated by a Dirac delta well. Bound state energies of these Dirac delta well conglomerates are calculated, using a method ...