Browsing Theoretical and Applied Physics by Title
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Fundamentals of Laser Dynamics
(20130513)The thesis presents the modeling and simulation of three types of lasers namely; Semicondoctor laser, Solid state laser and CO 2 laser. The rate equations were derived and simulated to examine the dynamic behaviour of the ...

GrapheneHexagonal Boron Nitride Work Function Response to Uniform Planar Deformations: An ab initio DFT Study
(20210423)A twodimensional hybrid material with graphene and hexagonal boron (hBN) domain is considered as viable material for future generations of flexible electronic devices due to the tunable band gap, excellent mechanical and ...

Influence of Molecular Polarizability on the Active Layer of Organic Photovoltaic Cells: A case study of Poly(3hexylthiophene)
(20130513)The complexity of the microstructure of the active layer in organic photo voltaics (OPVs) poses a unique challenge in improving the efficiency of OPV devices. Molecular dynamics (MD) simulation provides a direct route ...

Limiting Efficiency of Perovskite Solar Cells
(20141215)The power conversion efficiency of perovskite solar cells has risen from as low as 3.8% to as high as 19.3% in just five years with yet a projected value of over 20% in the next few years by experimentalists. Such a ...

Modeling of the Origin and Interactions of Multisoliton Solutions of the (2+4)KdV Equation
(AUST, 20190605)Most of the relevant research work has addressed the properties of internal solitons in a greatly simplified environment, usually in the framework of different versions of the two layer fluid. The simplest equation of this ...

Modelling of Contact and Adhesion at Interfaces in Bulk Heterojunction Solar Cells
(20111215)The study of the structures and properties of organic materials for organic photovoltaic (OPV) applications and their interrelationships is a rapidly growing field of research, involving interdisciplinary efforts at the ...

Molecular Dynamics Simulation of Transport of Encapsulated Drug Through a Lipid Bilayer
(20141215)Most anticancer drugs are polar, cytotoxic and have complicated structures which cause difficulty in their penetration through the cell membrane. This presents a serious problem in chemotherapy. Is it possible to use carbon ...

NoiseEnhanced Directed Transport of Cold Atoms
(20210314)The possibility of enhancing directed transport for a driven quantum particle in the presence of noise is investigated. Specifically, we deal with cold atoms trapped in an asymmetric optical lattice potential (ratchet ...

Nonlinear Effect inflow in Porous Duct
(20130513)In general, it is assumed in some non viscous flows that the flow velocity is constant at a crosssection. In this thesis, If we impose more realistic boundary conditions by, for example, introducing viscosity,and suction ...

Optical Properties of Metal Clusters from First Principles Calculations
(20160617)Ground State structures of neutral Copper clusters Cu N =3−6 were generated and optimised within the framework of the Density Functional Theory (DFT) using Generalised Gradient Approximation (GGA) and ultrasoft pseudopotential. ...

Performance Optimization of Tin Halide Perovskite Solar Cells Via Numerical Simulation
(20141215)Organicinorganic hybrid perovskite solar cells have attracted great attention in the photovoltaic research community in recent years due to its ease of processing, low cost of production, superb lightharvesting ...

Pulsed Lasers in Lidar Application: Models for Optimizing Wind Turbine Performance
(20190622)Since the appearance of the first wind turbines at the end of the nineteenth century, wind energy has been considered to be a renewable energy source for not just developed countries but also developing countries as well. ...

Qualitative Modelling and Simulation of Free Running Semiconductor Laser
(20111115)The thesis presents the modelling and simulation of free running semiconductor laser. The rate equations which were derived on the basis of the fact that there must be a balance between carriers that undergo transition ...

Quantum Simulation of a TransverseField Ising Model
(20101220)A popular model that have been used to study ferromagnetism is the Ising Model which is an arrangement of spins along a particular direction and with discrete values of + 1 . 1D Ising model doesn't show a phase transition ...

Ratchet Current Landscape at Quantum Resonance
(20201214)The ratchet effect is the rectified motion of atoms using an unbiased driving force. By ‘’unbiased’’ we mean to say that the timeaverage is equal to zero. This can be accomplished experimentally using cold atoms in a ...

Simulation of Carbon Nanotube Growth
(20130513)The basic understanding of the underlying techniques of growing Carbon Nanotubes (CNTs) with a specific chirality is still obscure and needs to be understood so as to properly harness its potentials. Using both Classical ...

SimulationBased Model Thermal Ablation of Prostate Cancer Using High Intensity Focused Ultrasound
(20141220)The use of High Intensity Focused Ultrasound (HIFU) in the medical treatment of cancer has attracted scientists and engineers with interest in achieving the most financially affordable but yet curative methods of curing ...

Spontaneous Flow Transitions in Active Polar Gels
(20111120)Active polar gels are a type of viscoelastic soft material formed by polar filaments which are constantly driven out of equilibrium by the consumption of chemical fuel such as ATP. Following the approach of Voituriez et ...

Stability and Bifurcation Analysis of a HindmarshRose Neuronal Model With Time Delay
(AUST, 20190720)In this research work, we study and analyse HindmarshRose neuronal system with time delay. Considering the fast subsystem of the model, all the possible nonnegative equilibria are obtained and their local as well as ...

Stochastic Modelling of a Chemotactic Microswimmer
(20111120)Key to Escherichia coli (Ecoli) bacteria survival is its ability to direct its movement to greener pasture and flee harmful environment  also known as chemotaxis. This thesis focuses on the modelling of Ecoli chemotaxis ...