Browsing Department of Physics by Title
Now showing items 1-20 of 75
-
20 G bps Pulse Amplitude Modulation (PAM) Format for Capacity Upgrade in Optical Communications
(American Journal of Optics and Photonics., 2019)In the fast growing society, communication is broadening so rapidly such that internet users need to access information rapidly and amount of data flowing through internet is very huge. Various ... -
Ab initio insights into Graphene-Zirconium disulfide/diselenide heterostructure as electrode material for alkali-ion batteries
(Surfaces and interfaces, 2021)In the search for an energy storage medium with higher electronic conductivity, rate performance and moderate volume expansion, van der Waals heterostructures are a promising alternative. Herein, the potential of graphene ... -
Ab-initio Simulations ofCopper Oxide Nanowires and Clusters on TiO2(101)Anatase Surface
(Journal of Physical Chemistry, 2017)Copper oxides deposited at titania surfaces have a beneficial effect on the photocatalytic activity of TiO2, but their role is not fully understood. In this work, possible nanostructures of copper oxide on TiO2 (101) have ... -
Ab-initio STUDIES OF STRUCTURAL, ELECTRONIC, MAGNETIC AND OPTICAL PROPERTIES OF NICKEL OXIDE
(University of Eldoret, 2014)Nickel Oxide (NiO) has many applications in solar energy utilization, due to variations in electronic, optical and magnetic properties. However, a satisfactory description of its properties is still not available. There ... -
ALGEBRA OF COUPLED ELECTRONS IN THE CO-EXISTENCE OF
(2016-05-19)Superconductivity is a phenomenon in which the d.c electrical resistance of a material vanishes completely and instantly rather than gradually when it is cooled below a certain temperature called the superconducting ... -
ALGEBRA OF COUPLED ELECTRONS IN THE CO-EXISTENCE OF SUPERCONDUTIVITY AND FERROMAGNETISM
(University of Eldoret, 2013)Superconductivity is a phenomenon in which the d.c electrical resistance of a material vanishes completely and instantly rather than gradually when it is cooled below a certain temperature called the superconducting ... -
Analysis of CSRZ and CSNRZ Coding for DQPSK and OQPSK Transmitter Configurations for Optical Microwave Generation Signals Based on Stimulated Brillouin Scattering
(World Scientific News, 2020)The use of Carrier Suppressed Non-Return to Zero (CSNRZ) and Carrier Suppressed Return to Zero (CSRZ) modulation formats in Dense Wavelength Division Multiplexing (DWDM) channels at 1 Gb/s and 10 Gb/s is investigated. ... -
Assessing the Potential of Using Satellite Data on Radiation in the Analysis of Earth’s Climate System to Complement the Scarce Radiation Data Measured from the Ground Stations
(Asian Journal of Probability and Statistics, 2018)High quality solar radiation data is required for the appropriate monitoring and analysis of the Earth’s climate system as well as efficient planning and operation of solar energy systems. However, well maintained ... -
ASSESSMENT OF WIND CHARACTERISTICS AND POWER POTENTIAL AT KESSES LOCATION - UASIN-GISHU COUNTY, KENYA
(University of Eldoret, 2015)Wind energy is increasingly becoming popular all over the world as a green energy source for electricity generation since it is renewable and environmentally friendly. Pioneer wind turbines for electricity generation ... -
CANONICAL TRANSFORMATION AND THE PROPERTIES OF A MIXTURE OF FERMIONS AND BOSONS AT LOW TEMPERATURE
(University of Eldoret, 2021)Properties of free and interacting systems of bosons and fermions have been studied theoretically using canonical transformation. In the last few years (1995 to be exact), condensates have been obtained practically in the ... -
Coherent High-Speed Signal Transmission in Passive Optical Networks
(Journal of Research in Engineering and Computer Sciences, 2023-11)A comparative study of digital M-ary Quadrature Amplitude Modulation (16-QAM) and QPSK modulationformats for high-speed transmission is presented. Based on VPI optical simulation software. This paper builds ... -
Computation of the Expectation Value of the Electron – Phonon and Coulomb Interaction Hamiltonian using Second Quantization and Many Body Techniques
(International Journal of Research and Analytical Reviews (IJRAR), 2020-12)The problem of the strong electron coupling in the theory of superconductivity has been discussed in many studies on the basis of electron and phonon spectral functions. For the rationale of investigating the effect of ... -
Correlation between Nucleon-Nucleon Interaction, Pairing Energy Gap and Phase Shift for Identical Nucleons in Nuclear Systems
(Journal of High Energy Physics, Gravitation and Cosmology, 2019)Assuming some known nucleon-nucleon interactions, and using the relations between phase shift δ and nucleon-nucleon interaction potential()Vr; the relation between nucleon-nucleon interaction and scattering length ... -
Correlation between Nucleon-Nucleon Interaction, Pairing Energy Gap and Phase Shift for Identical Nucleons in Nuclear Systems
(Journal of High Energy Physics, Gravitation and Cosmology, 2019)Assuming some known nucleon-nucleon interactions, and using the relations between phase shift δ and nucleon-nucleon interaction potential()Vr; the relation between nucleon-nucleon interaction and scattering length ... -
THE CORRELATION BETWEEN NUCLEON-NUCLEON INTERACTION, PAIRING ENERGY GAP AND PHASE SHIFT FOR IDENTICAL NUCLEONS IN NUCLEAR SYSTEMS.
(University of Eldoret, 2021)The correlation between nucleon-nucleon interactions 𝑉(𝑟) and the pairing energy gap Δ is studied theoretically. When two nuclear particles collide due to the interaction, they get scattered after approaching within a ... -
CRYSTALLIZATION OF HELIUM-3 AND NEUTRON MATTER FERMIONS IN CONDENSED MATTER PHYSICS
(University of Eldoret, 2017)In this Thesis crystallization of a hard-sphere assembly of fermions with densities ranging from low to high values has been theoretically investigated, the fermions are very close to each other, and the interaction between ... -
A DENSITY FUNCTIONAL THEORY STUDY OF COPPER OXIDES NANOWIRES AND CLUSTERS ON ANATASE TiO2 (101) SURFACE FOR PHOTOCATALYTIC WATER SPLITTING
(2018)Copper oxides deposited at titania surfaces have a beneficial effect on the photocatalytic activity of TiO2, particularly water splitting. However, the role of copper oxides and mechanisms of enhancement remains to be ... -
A DENSITY FUNCTIONAL THEORY STUDY OF COPPER OXIDES NANOWIRES AND CLUSTERS ON ANATASE TiO2 (101) SURFACE FOR PHOTOCATALYTIC WATER SPLITTING
(University of Eldoret, 2018)Copper oxides deposited at titania surfaces have a bene cial e ect on the photocatalytic activity of TiO2, particularly water splitting. However, the role of copper oxides and mechanisms of enhancement remains to be ... -
A DENSITY FUNCTIONAL THEORY STUDY OF COPPER OXIDES NANOWIRES AND CLUSTERS ON ANATASE TiO2 (101) SURFACE FOR PHOTOCATALYTIC WATER SPLITTING
(University of Eldoret, 2018)Copper oxides deposited at titania surfaces have a bene cial e ect on the photocatalytic activity of TiO2, particularly water splitting. However, the role of copper oxides and mechanisms of enhancement remains to be ... -
Design of simultaneous multicolor coherent light generation in a single MgO:PPLN bulk crystal
(Journal of the Optical Society of America B, 2020-11)We report on simultaneous sum-frequency mixing and doubling of C-band and 980 nm laser sources using a single segmented periodically poled lithium niobate (PPLN) crystal in a single-pass configuration. Our theoretical analysis ...
