Browsing Theoretical and Applied Physics by Title
Now showing items 120 of 53

Ab Initio Density Study of N and O Coadsorption on Pt(100) and Pt(111)
(20091113)We have used ab initio density functional theory to study the coadsorption of N and O on Pt(100) and Pt(111) surfaces. Our calculations show that on Pt(100) the most favourable site is the hollow site for N and the bridge ...

AB Initio Study of Surface Energy, Surface Stress and Coupling Coefficient of Au (111)
(AUST, 20231210)This study investigates ab initio exploration of the Au (111) surface within the generalized gradient approximation, with a primary focus on assessing the convergence properties of this noble metal. An indepth analysis ...

Analysis of Magneto Hemodynamics of Blood in a Stenosed Artery
(20160617)Human body responds to physical activities, external temperature, external magnetic field, and other factors by homeostatically adjusting its blood flow in order to deliver nutrients such as oxygen and glucose to every ...

Biomechanics of Surface Runoff and Soil Water Percolation
(20190623)In this study, the complex interaction of surface runoff with the biomechanics of soil water transport and heat transfer rate is theoretically investigated using mathematical model that rely on the two phase flows of an ...

Buoyancy Effects on Human Skin Tissue Thermoregulation due to Environmental Influence
(AUST, 20190605)This paper theoretically examines the impact of thermal buoyancy on human skin tissue’s blood flow, heat exchange and their interaction with the surrounding environment using a two phase mathematical model that relies on ...

Calculations of Phonons and Phonon Dispersion in Lifep Pnictide Superconductor
(20101220)Not too long ago(2008),a new pnictide Superconductor free from arsenic was discovered–LiFeP. It belongs to the family of the so called ‘111’ type iron Superconductor. It has unique characteristics in its normal state which ...

Coherence Control of Tunneling
(AUST, 20190614)The phase space representation of quantum mechanics are well known as powerful tools for studying the correspondence between the density operator and classical distributions in phase space. This representation, known as ...

Combination and Tracking Control of Chaotic Systems
(20160620)Combinationcontrol of two or more systems which may have important application in Josephson junction ratchet array, and other physical systems has not been explored. Most of the theoretical framework is on combination ...

Control of Non Linear Oscillations in Plasma Governed by a Van Der Pol Equation
(20111220)This thesis deals with the control of non linear oscillations in plasma governed by a classical Van der Pol equation . The main interest devoted to such an investigation is that non linear oscillations in plasma is essential ...

The Design of an OnChip Silicon Photonic Diode
(20130513)This work presents numerical calculation of electromagnetic waves in unidirectional onchip silicon optical diodes. An original optical diode, designed by Wang et. al. [Opt. Express. 19, 2694826955 (2011)], is based on ...

Development of a Correction Term for the Kinetic Energy Density Functional
(20141215)Density functional theory (DFT) is a useful theoretical and computational tool for electronic structure calculations, which form the basis for the classification of materials into conductors, semiconductors or insulators. ...

Effect of Disorder on Spin Transport in Topological NonTrivial Magnetic Textures
(201906)An eﬀect that is observed when an electron passes through a noncollinear magnetic textures such as skyrmion, the electron gets deviated as a result of the ﬁctitious magnetic ﬁeld generated by the skyrmion giving rise to ...

Effects of Bending on the Optoelectronic Properties and Failure Mechanism in Organic Photovoltaics
(20111215)This research investigates the effects of bending on the electrical, optical, structural and mechanical properties of flexible organic photovoltaic (OPV) cells. Bulk heterojunction organic solar cells were fabricated on ...

Effects of Stretching on Flexible Organic Electronic Structures
(20111215)This work presents the responses of optical properties and mechanical failure of layers of stretchable organic electronic structures under tension using analytical, simulations, and experimental techniques. The interfacial ...

ElectroMagnetic Duality, Magnetic monopoles and Topological Insulators
(20130513)The Maxwell equations of electrodynamics acquire an additional symmetry if one assumes the existence of hypothetical particlesmagnetic monopoles, carrying a magnetic charge. The additional internal symmetry is the ...

Exergy Analysis of Hybrid Solar Pv Diesel / Biofuel System for Cogeneration (ELECTRCITY and Cold)
(20101220)In this study, Flexy energy analysis taking exergy analysis and heat recovery into account on performance has been performed. The effects of wasting heat on exhaust gas temperature and cooling engine, is analysed in terms ...

Femtosecond laser pulses interacting with atoms
(AUST, 20190916)We theoretically investigated a phenomena arising from the interaction of femtosecond pulsed lasers with an Hydrogen atom. The phenomena of interest to us, is the High or der Harmonic Generation (HHG) of soft and hardXray ...

Femtosecond Laser Surface Texturing of Materials for Various Applications
(20130513)Femtosecond lasers represent an electromagnetic field with field intensities approaching and even exceeding atomic binding field. When irradiated on a target, the material responses change from linear to nonlinear within ...

Finite Pulse Ratchet Effect of Cold Atoms
(20210323)The thesis presents the modelling and simulation of the rachet effect created by a spatio temporal asymmetry potential. The potential is a coupled spatial asymmetry sin wave and a rectangular pulse train. The effective ...

First Principle Study: Absorption of Molecular Hydrogen Sulphide on Gold Clusters
(20091113)We present theoretical results of the study of H 2 S adsorption on gold cluster Au n (n = 1, 5) using density functional theory with PerdewBurkeErnzerhof (PBE) exchangecorrelation energy functional. Minimum energy ...