Browsing Fizik by Title

Sort by: Order: Results:

  • Narrow escape time in biology 
    Selçuk, Özlem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    In biological systems, the main challenges in modeling transport processes can be summarized as being inside a heterogeneous medium, which is a fluctuating environment, and striving to reach to a chemically active receptor, ...
  • Near infrared laser beam and silicon water interactions 
    Akşit Kaya, Elif Türkan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    At 1070 nm wavelength, Nanosecond (ns) pulse and Continuous Wavelength (CW) lasers’ ablation of n-type(100) and p-type(111) Si wafer is presented in ambient, water and glycerin environments. Impacts of laser emission mode, ...
  • Noise robust real-time focus detection with deep learning for ultra-fast laser micromachining 
    Polat, Can. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    In this thesis, different types of machine learning models are provided for ultra-fast laser micromachining system to actively control the focusing of light on the processing material by detecting the reflected light. These ...
  • Non - relativistic bose gas in curved background 
    Debir, Birses. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    In this thesis we focus on the Bose-Einstein Condensation of a pure Bose gas con ned in a box placed near the horizon. Then, we formulate the nite size e ects in the limit m ! 0. We look for the number of excited particles, ...
  • Noncommutative phase and the unitarization of the quantum group GL(2) 
    Kaynak, Burak Tevfik. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2003., 2003.)
    In this thesis, a new *-operation (or unitarized form) is defined for the two-parameter quantum group GLp,q(2) in the case that pq is real, and the new group is denoted by Up,q(2). The most interesting aspect of our ...
  • 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. ...
  • Nonperturbative aspects of quantum field theories 
    Kaynak, Burak Tevfik. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    The main focus of this thesis is to elaborate rather unorthodox methods throughout a diverse range of mathematical techniques, which allow us to study quantum field theoretical models in a nonperturbative context. The ...
  • Nonrelativistic limit of Bose-Einstein condensation in a static spacetime 
    İşeri, İslam Çağrı. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    Nonrelativistic limit of thermodynamics of noninteracting Bose field in curved background is investigated via a post-Newtonian approach. In large but finite c limit matter becomes nonrelativistic whereas the geometry stays ...
  • 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 ...
  • 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 ...
  • Numerical modeling, design, and time-frequncy metrology applications of low-noise optical frequency combs 
    Şenel, Çağrı. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Optical frequency combs are very versatile tools, which revolutionized many ar eas, and enabled novel applications, especially in time-frequency metrology. In this thesis, I tried to convey a complete picture of the road ...
  • On cosmological supernova observations and alternative gravity theories 
    Feyzioğlu, Mehmet Akif. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    This thesis is about getting the most information from the cosmological super nova data about the expansion history of the homogeneous and isotropic universe, with the least possible set of assumptions. To this end, we fit ...
  • 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 ...
  • On static spherically symmetric solutions of Einstein's equations with two perfect fluids as source 
    Uzun, Nebiye Merve. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    We first point out that in the context of static spherically symmetric solutions of Einstein's Equations, the "radially imperfect fluids" introduced recently are equivalent to superpositions of noninteracting normal and ...
  • On the classical solutions of field theoretical models 
    Kalaycı, Jan. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1984., 1984.)
  • On the cosmological impact of a quantized scalar field 
    Algan, Merve Tarman. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2016.)
    We explicitly compute the leading order contribution to the stress-energy- momentum tensor of a scalar eld, which propagates in a Friedmann-Robertson-Walker (FRW) universe and placed in the in nite adiabatic vacuum. Since ...
  • On the history of expansion and matter - energy content of the universe 
    Çamlıbel, Ali Kazım. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    The aim of this dissertation is to explore the vast phenomenological area between the cosmological observations and the theoretical approaches. We are speci cally focusing on type Ia supernova data and what they tell us ...
  • On the large c expansion of general relativity 
    Ergen, Mert. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    This paper will start with the classical description of gravity. It will next explain the mathematical tools that will be used to carry classical gravity to a geometrical frame. After demonstrating the covariant formulation ...
  • On the radial monotonicity of the ensemble average propagator 
    Bodur, Erkam. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)
    The ensemble average propagator (EAP) is the di usion propagator averaged over a volume of porous medium. This mathematical tool contains substantial amount of information concerning the geometry of the underlying structure. ...
  • 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 ...

Search Digital Archive


Browse

My Account