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Browsing department of mathematics and physical sciences by Issue Date

Now showing items 1-20 of 59

Hindrances to Pure Mathematics as a Transformation Tool in the Society

Dr. Matuya, John Wanyonyi (MMU, 2014)

Mathematics plays a crucial role in the society since it is core for almost all disciplines and it is applicable in day today life. The society has some sense of the importance of Applied Mathematics and Statistics, but ...
Synthetic Single Crystal Diamond For Radiation Detection And Medical X-Ray Imaging Applications

Rotich, Maritim J. K.; Kiprop, S.K.; Choge, K.D; Sigei, F (2014)

Diamond has been known for many years as a very attractive material for applications in the detection field and more specifically for the radiation therapy dosimetry. The nature of the material, the wide band gap and the ...
Potential of Lubricating Oil (Mgalo) and Organic Bio-Fertilizer Production from Marine Green Algae (Patent Number, KE/UM/2012/00295)

Jiveri, Bonface; Adhiambo, Brendah; Anami, Sylvester (2014)

Green seaweed Euchuma rhodophyta, Ulva lactuca and Enteromorpha flexuosa harvested from the Indian Ocean (Kenya) were characterized as feedstock for the production of lubricating oil and fertilizer. Euchuma rhodophyta had ...
A Simple Low Cost Solar Cell Characterization Laboratory Experiment for Senior Undergraduate Students

Waita, Sebastian; Simiyu, Justus; Kiragu, Alexander N.; Imali, Vivian; Aduda, Bernard (2014)

A simple low cost solar cell characterization experiment has been developed for senior undergraduate students in the Department of Physics, University of Nairobi. Experiments were conducted with 20 W and 40 W power solar ...
Theoretical Determination of Specific Heat of High-Tc Cuprate Superconductors Based On Intralayer and Interlayer Interactions

Sigei, K. F; Maritim, J. K.; Khanna, K.M; Choge, K.D (2014)

The role of attractive interlayer and intralayer interactions in layered high-Tc Cuprate superconductors was investigated using a two-layer Hamiltonian. The Hamiltonian was formulated and diagonalized using Bogoliubov ...
On Characterization of Posinormal Operators and Their Applications in Quantum Mechanics

OKELO, N. B (2014)

Studies on Hilbert space operators have been carried out by several researchers and mathematicians with interesting results obtained. A posinormal operator is one of the operators under concern with interesting characters. ...
Conditions for Positivity of Operators in Non-Unital C*- Algebras

Karieko, Obogi Robert; Okelo, Benard; Ongati, Omolo (2014)

In this paper we investigate the necessary and sufficient conditions for positivity of operators in non-unital C*- algebras. The methodology involves considering C*-algebras from the known ones like B (H), the C*-algebra ...
Natural Radioactivity Hazards of Building Bricks Fabricated From Clay Soil of Bomet District, Bomet County, Kenya

Cheruiyot, L (2016)

Primordial radionclides in building materials are one of the major sources of radiation hazard in dwellings. Clay bricks are mainly used for the construction of dwellings in Bomet district,Bomet County,Kenya. Therefore, ...
Molecular Characterization of Microorganisms in Cattle Ear Responsible for Producing Volatile Constituents Attractive to the Brown Ear Tick

Kogo, K. K; Skilton, R.; Michuki, G; Njahira, M; Wanzala, W; Hassanali, A. (2016)

Rhipicephalus appendiculatus (Brown Ear Tick), the vector of East Coast Fever (ECF), feeds dominantly inside the cattle ear. Previous studies have shown that the adults are attracted by ear volatiles and repelled by anal ...
Determination of Graphene Layers by Optical Imaging Contrast Analysis

Mbaluka, B.J; Ngumbi, P.K; Ngei, K.; Mugo, S.W.; Soitah, N.T; Ngaruiya, J.M (2016)

Practical application of graphene require accurate determination of the number of layers. In this paper we demonstrate a reliable and efficient approach for determining the number of graphene layers. Plots of contrast ...
Norms of Norm-attainable Self-adjoint Normal Operators

Okelo, N.B (2016)

The study of norms of operators forms a very important aspect in functional analysis and in particular operator theory. In this, paper we present norms of operators in Hilbert spaces. Moreover, we outline the theory of ...
The Beauty of Pure Mathematics

Matuya, John Wanyonyi (2017)

It has been said that beauty is in the hands of the beholder. In this paper we discuss some truths about pure Mathematics. We point out that the theories in pure mathematics are applied in day to day life. Coding theory ...
Application of Nanotechnology for Enhanced Treatment of Tropical Diseases

Omwoyo, Wesley Nyaigoti (MMU, 2017-01-28)

The use of nanotechnology in drug delivery is a rapidly expanding field. Nanotechnology is a multidisciplinary scientific undertaking that involves creation and utilization of materials, devices or systems on nanometer ...
Effluent Organic Pollutants Removal by Photodegradation Using Β-Carotene Dopped Zinc Oxide Nanoparticles.

Chaka, Bakari; Osano, Aloys; Odhiambo, Silvester (MMU, 2017-06)

Environmental pollution especially in the form of effluent wastewater from industries has been a major challenge. When chromophores are shone Electromagnetic radiations of UV-VIS wavelength (≈378nm), on a photocatalyst ...
Single and Competitive Removal of Sulfachloropyridazine and Sulfadimethoxine onto Natural Kaolinite Clay: Kinetics, Isotherms and Thermodynamics Studies

Shikuku, Victor O.; Zanella, Renato; Kowenje, Chrispin O.; Donato, Filipe F.; Bandeira, Nelson; Prestes, Osmar D. (MMU, 2017-06)

In this study, local untreated clay was tested for its ability to adsorb sulfonamides, namely, sulfachloropyridazine (SCP) and sulfadimethoxine (SDM) from synthetic wastewater by batch equilibration. The time-dependent ...
Solar Photovoltaic Use and Applications in Africa a Success or a Fallacy. A Review Focusing on Current Solar Use in the Tropics

Osano, Aloys (MMU, 2017-06)

Africa Climatic conditions is characterized with; High sunshine Intensity, very hot, dry and dusty environment, in some cases, high humidity. Rampant insecurity and vandalism challenges of photovoltaic, solar gadgets and ...
Ab-Initio Study of Electronic Structure and Thermoelectric Properties of a Zintl Compounds Material for Waste Heat Recovery

Maera, John; Manyali, George S. (MMU, 2017-06)

Thermoelectric (TE) materials which convert temperature gradients directly into electricity and vice versa, have received renewed interest for waste heat recovery and refrigeration applications.Their outstanding reliability ...
Anomalous Behaviour of Surface Brillouin Scattering in Thin Strained CVD Diamond

Motochi, I. (MMU, 2017-06)

Ion-implantation introduces stresses and strains in the implanted region of any crystal. The material may be healed through annealing, for diamond it has been noted that annealing may bring about recrystallization as long ...
A Full Derivation of the General Equations Governing Base Fluids in MHD Flow

Kaneba, Christopher Munyiwa; Matuya, John (MMU, 2017-06)

The most important part of fluid dynamics is the governing equations. These equations are three in number and are namely; Equation of Continuity, the Navier-Stokes equation also known as the Momentum equation and the Energy ...
The Convergence of u AND h IDEALS

Matuya, John Wanyonyi (MMU, 2017-06)

In this paper we define an ideal as used in algebra and give properties that qualifies I a subset of R to be an ideal. We proceed to discuss the u and h ideals defined on the banach Space. It will be seen that ideals defined ...

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