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This paper is aimed at estimating Radio Frequency (RF) radiation absorbed by humans around Base Transceiver Stations (BTS) within Kaduna metropolis. RF radiation absorbed by humans from forty two (42) selected (BTS) tagged M1 to M42 of the four major network providers (MTN, 9mobile, Airtel and Globacom) within Kaduna metropolis, Kaduna State, Nigeria within radial distance intervals of 20 m to 100 m from the foot of each BTS were estimated. The Average Power Density (PDAve) and Specific Absorption Rate of data obtained from these BTS were computed, and the results indicated that the average amount of SAR for the selected forty two (42) base transceiver BTS facilities were within the range of 16.9 - 331.7 × 10-9 W/kg and 0.648-10.659 × 10-6 W/m² respectively. These values are lower than the recommended limit by International Commission on Non Ionization Radiation Protection (ICNIRP) which is 0.08 W/kg for the human body. This study has shown that RF radiation absorbed by people either residing or transiting the study area has negligible effect on their health. [ABSTRACT FROM AUTHOR]

This paper explores the method of Pade approximation to solve a system of heat equation; The Pade method of solving PDEs is a well-established method because of its added advantage of naturally increasing the domain of convergence of truncated power series. The solution of the heat equation has been directly expressed as a rational power series of the independent variable known as the Pade approximant. Attempt is made to solve the heat equation and obtain solutions in terms of their exponential matrix. A test on the stability of the solutions via conventional numerical procedures through some form of John Neumann stability method confirmed the scheme to be L0 - stable and therefore produced solutions that are well behaved. [ABSTRACT FROM AUTHOR]

In this paper, we study Navier – Stokes Equations in an infinite strip Ω = R×[-1,1 ]. We used the Uniformly Local Spaces as with focus on model situation where pressure has been omitted in the momentum equation. We obtain a priori estimates for the solutions and use the phase – portrait analysis to obtain bounds for them. We caution that the method used in this paper cannot be applied in general situation but is peculiar to only circumstances where the pressure term has been artificially removed. [ABSTRACT FROM AUTHOR]

This paper deals with the coupled system of Navier-Stokes equations and temperature (Thermohydraulics) in a strip in the class of spatially non-decaying (infinite-energy) solutions belonging to the properly chosen uniformly local Sobolev spaces. The global well-posedness and dissipativity of the Navier-Stokes equations in a strip in such spaces has been established in Zelik (2007). Similar protocol is observed using maximum principle to obtain bounds for the temperature solutions in Boussinesq approximation. [ABSTRACT FROM AUTHOR]