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Theses and Dissertations

Theses and Dissertations

 

Recent Submissions

  • NOVEL ORGANIC TANDEM SOLAR CELLS 
    Ernest, Adiyiah Asare (School of Sciences and Humanities, 2023)
    Organic tandem solar cells have attracted significant attention as a promising technology for next-generation photovoltaics due to their potential to achieve high power conversion efficiencies. In this study, we present a ...
  • ULTRA-SHARP ANGULAR FILTERING OF FAR-FIELD SIGNALS WITH GRADED-INDEX MULTILAYERS 
    Shukurov, Sanat (School of Sciences and Humanities, 2023)
    Dielectric multilayers with graded index treat the propagating waves impinging at different angles very differently, due to total internal reflection. Such an ultra-sharp change in the response can be exploited for ...
  • DISSIPATIVE COLLAPSE OF THE SPHERICAL STELLAR OBJECT 
    Aryngazin, Ansar (School of Sciences and Humanities, 2023)
    In this research we investigate the shear-free, non-viscous perfect fluid model describing stellar object that emits radiation that leads to dissipation. We study matching of the interior metric with the exterior outgoing ...
  • VORTEX RING RECONNECTIONS IN PARAXIAL LASER BEAMS 
    Kulchukova, Zhamila (School of Sciences and Humanities, 2023)
    In recent years, optical vortex knots have been the subject of active research. The knots appear in various areas of physics and understanding the mechanism that is responsible for their formation is a problem that extends ...
  • GRAVITATIONAL COLLAPSE MODEL WITH DISSIPATION 
    Abilmazhinova, Madina (School of Sciences and Humanities, 2023)
    Radiating spherically-symmetric collapsing model is studied. Exterior Vaidya spacetime is matched with the interior of a perfect fluid with a heat flow. Junction conditions and field equations are derived, revealing that ...
  • STAR CLUSTER MEMBERSHIP IDENTIFICATION BY SUPERVISED MACHINE LEARNING MODELS APPLIED TO N-BODY SIMULATIONS 
    Bissekenov, Abylay (School of Sciences and Humanities, 2023)
    This thesis investigates possible ways to apply supervised machine learning algorithms on N-body simulations. Because of the limitations of observational data, there is a motivation to research star clusters by the N-body ...
  • Expectation Values of Singular Operators in Variational Calculations of Atomic P-States 
    Shomenov, Toreniyaz (Nazarbayev University School of Sciences and Humanities, 2020-05-05)
    Expectation values of singular operators evaluated in the framework of the Rayleigh-Ritz variational method in quantum mechanics may show slow convergence with increasing the number of basis functions, K. An example of ...
  • Analysis of Individual Extensive Air Shower using Pulse Shape Information 
    Yessimbet, Kamilya (Nazarbayev University School of Sciences and Humanities, 2018-04-23)
    Study of Ultra-High energy Cosmic Rays (UHECR) coming to Earth from the deep cosmos has the potential to open the veil on some remaining mysteries in the field of High Energy Physics and Astrophysics. Horizon-T detector ...
  • Brick-By-Brick: A Construction of ’t Hooft’s Brick Wall 
    Gilman, Narynbek (Nazarbayev University School of Sciences and Humanities, 2020)
    A pedagogical construction and review, aimed at the undergraduate level, are given of the brick wall model. The brick wall is a finite region just outside the event horizon of a black hole. It is introduced in order to ...