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Now showing items 31-40 of 94
Effect of Ga Incorporation and Film Thickness on the Optical Properties of as-Deposited Amorphous GaxSel-x Thin Films
(University if Nairobi Research archive, 2014)
Flash evaporated amorphous GaxSe1-x (x = 0, 1, 2, 3, and 4 atomic %) on glass substrates have been
investigated within a 500nm-1500nm spectral range. Film thicknesses explored were ; 200±10nm, 265±10nm,
330±10nm, and ...
3-DIMENSIONAL MATHEMATICAL MODELLING OF TEMPERATURE DISTRIBUTION IN POROUS MEDIA
(Academic Publications, Ltd., 2011)
An alternative method of the numerical solution of the heat equation is presented. A three-dimensional modelling approach is used in this paper rather than one or two dimensional models in order to account for the lateral ...
Quantum thermodynamics of a strongly interacting bose-fermi mixture in a three-dimensional anharmonic potential
(Research gate, 2016)
ABSTRACT
Thermodynamic properties of Bose-Fermi mixture at ultra-low temperatures were studied using
perturbation theory in three Cartesian coordinates. The Hamiltonian for the mixture was developed in
terms of boson-boson, ...
Complex Spacetime Frame: Four-Vector Identities and Tensors
(Scientific Research Publishing, 2014)
This paper provides derivation of some basic identities for complex four-component vectors defined in a complex four-dimensional spacetime frame specified by an imaginary temporal axis.
The resulting four-vector identities ...
The benefits and challenges emanating from community policing in Kenya: A Criminological Perspective
(International Journal of Innovation and Scientific Research, 2014)
Community policing is an integral component in ensuring that there is no insecurity in the community. More so,
the Kenyan government in the Kibaki regime introduced the concept of community policing which was seen as ...
Finite Difference Analysis of 2-Dimensional Acoustic Wave with a Signal Function
(2015-12-09)
This paper describes progress on a two dimensional numerical simulation of acoustic wave propagation that has been developed to visualize the propagation of acoustic wave fronts and to provide time-domain signal. In this ...
Improved efficiency of organic solar cells using Au NPs incorporated into PEDOT: PSS buffer layer
(AIP Publishing LLC, 2017)
Au based plasmonic phenomenon inside the hole transport layer poly(3,4-
ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) of an organic solar
cell based on blend of poly(3-hexylthiophene) (P3HT) and [6:6]-phen ...
Ab initio study of the structural, vibrational and thermal properties of Ge2Sb2Te5
(Imperial College Press, 2015-06-12)
The structural, vibrational and thermal properties of hexagonal as well as cubic Ge2Sb2Te5 (GST) have been calculated from first principles. The relative stability of the possible stacking sequences of hexagonal GST has ...
The Acoustic Wave Propagation Equation: Discontinuous Galerkin Time Domain Solution Approach
(Hikari Ltd, 2019)
This paper discusses a finite element method, discontinuous Galerkin
time domain approach that solves the 2-D acoustic wave equation in
cylindrical coordinates. The method is based on discretization of the
wave field ...
Photospins in the quantum Rabi model
(Research gate, 2019)
This article provides a systematic interpretation of the quantum Rabi model as a model of
photospins formed in the atom-field Jaynes-Cummings and anti-Jaynes-Cummings interaction
mechanisms. A photospin is a quantized ...