Browsing School of Pure and Applied Sciences by Title
Now showing items 39-58 of 259
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A class of multi-phase traffic theories for microscopic,kinetic and continuum traffic models
(Computers and Mathematics with Applications, 2013)In the present paper are view and numerical comparison of a special class of multi-phase traffic theories based on microscopic, kinetic and macroscopic traffic models is given.Macroscopic traffic equations with multi-valued ... -
A Co-Integration Analysis of the Interdependencies between Crude Oil and Distillate Fuel Prices
(Scientific Research Publishing, 2018)The co-evolution and co-movement of financial time series are of utmost importance in contemporary finance, especially when considering the joint behaviour of asset price realizations. The ability to model interdependencies ... -
Comparative limnology, species diversity and biomass relationship of zooplankton and phytoplankton in five freshwater lakes in Kenya
(Springer, 1994)Comparative studies on the limnology, species diversity and standing stock biomass of phytoplankton and zooplankton in five freshwater lakes, Naivasha and Oloidien, Ruiru, Masinga and Nairobi reservoirs, were undertaken. ... -
Comparative studies in electrochemical degradation of sulfamethoxazole and diclofenac in water by using various electrodes and phosphate and sulfate supporting electrolytes
(Taylor and Francis, 2016-06)In this study, the electro-oxidation capacities of Na2SO4 and potassium phosphate buffer supporting electrolytes were tested and compared for destruction of the sulfamethoxazole (SMX) and diclofenac (DCF) on platinum (Pt) ... -
Comparing macrophyte herbivory by introduced Louisiana crayfish (Procambarus clarkii) (Crustacea: Cambaridae) and native Dytiscid beetles (Cybister tripunctatus) (Coleoptera: Dytiscidae), in Kenya
(2005)The omnivorous Louisiana crayfish, Procambarus clarkii, has caused significant changes to macrophyte communities worldwide and may have similar negative effects in Kenya if used as a biological control agent for snails ... -
Comparison of Godunov’s and Relaxation Schemes Approximation of Solutions to the Euler Equations
(Journal of Applied Mathematics and Bioinformatics, 2015)In this paper we deal with the study of Euler equations for isothermal gas that is governed by two hyperbolic equations. By analysing the equations we obtain two real and distinct eigenvalues which enables ... -
Comparison of Godunov’s and Relaxation Schemes Approximation of Solutions to the Traffic Flow Equations
(International Journal of Scientific and Innovative Mathematical Research, 2014)In this paper we deal with the study of the traffic flow model that is governed by two hyperbolic equations. By analysing the equations we obtain two real and distinct eigen values which enables us to determine the wave ... -
Comparison of lead levels with calcium, zinc and phosphorus levels in human blood
(European Centre for Research Training and Development UK, 2013)The purpose of the study was to determine how the levels of calcium, phosphorus and zinc affected the levels of lead in the human blood. The levels of lead, calcium, zinc and phosphorus in human blood of subjects from ... -
Comparison of Three Solid Phase Materials for the Extraction of Carboxylic Acids from River Water Followed by 2D GC × GC-TOFMS Determination
(Hindawi Publishing Corporation, 2016)The extraction and determination of aliphatic and aromatic carboxylic acids as well as their influence on the aromaticity and molecularity relationship of natural organic matter (NOM) in water are reported in this study.Three ... -
Conditional CAPM in Financial Risk Management: A Quantile Autoregression approach
(2012)The study aims to provide a comprehensive description of dependence pattern of a stock by studying a range of betas derived as quantiles of conditional return distribution using quantile regression based on moving window ... -
Conditional Dependence Modellingwith Regular Vine Copulas
(Journal of Statistical and Econometric Methods, 2019)Modelling sophisticated high-dimensional dependence structures forfinancial assets in a portfolio framework require flexible dependencemodels. In this paper, a regular vine-copula based model is employed toanalyze financial ... -
Conditional scale function estimate in the presence of unknown conditional quantile function
(African Network of Scientific and Technical Institutions (ANSTI), 2005)Standard approach for modeling and understanding the variability of statistical data or, generally, dependant data, is often based on the mean variance regression models. However, the assumptions employed on standardized ... -
Conditional Volatility Estimation by Conditional Quantile Autoregression
(HIKARI Ltd, 2014)This paper considers the problem of estimating conditional volatility function using conditional quantile autoregression function. We estimate the interquantile autoregression range and the conditional volatility function ... -
Conflict resolution using statistical approach
(Academic Journals, 2010)Conflict can be described as a condition in which actions of one person prevent or compel some outcome at the resistance of the other. Quite often this can be seen as “two or more competing, often incompatible, responses ... -
Consistency of the Model Order Change-Point Estimator for GARCH Models
(Scientific Research Publishing Inc., 2018)GARCH models have been commonly used to capture volatility dynamics in financial time series. A key assumption utilized is that the series is stationary as this allows for model identifiability. This however violates the ... -
Control volume method for modelling slightly compressible flow reservoirs
(2015)Numerical simulation is widely used for predicting reservoir behavior and forecasting its performance. In this paper numerical modeling isperformed to simulatesingle phase flow in oil reservoir in horizontal ... -
Crank Nicolson Approach for the Valuation of the Barrier Options
(Research India Publications, 2018)Barrier options are considered to be cheaper than the standard options as they provide lower premiums which make them to be attractive to hedgers in the financial market. In this article, the numerical procedure for the ... -
Cross-Diffusion Effect on Mixed Convective Fluid Flow through Horizontal Annulus
(Mathematical Theory and Modeling, 2014)The unsteady mixed convective fluid flow through an annulus filled with a fluid-saturated porous medium is numerically investigated in this study in the presence of Cross-Diffusion effect and constant Heat Source. The flow ... -
Current and Emerging Technologies for the Characterization of Nanomaterials
(American Chemical Society, 2014-05-20)This paper provides a survey of conventional and emerging techniques that are available for characterizing engineered nanoparticles in complex matrices. Techniques that were considered include microscopy (TEM, SEM, HRTEM, ... -
Cycle indices of PGL(2,q) acting on the cosets of its subgroups
(International Journal of Scientific Research and Innovative Technology, 2017)In this paper, we mainly investigate the action of 𝑃𝐺𝐿 2,𝑞 on the cosets some of its subgroups namely; 𝐶𝑞−1,𝐶𝑞+1and 𝑃 𝑞. Corresponding to each action the disjoint cycle structures and cycle index formulas is ...