There is extensive contamination of the aquatic environment when rivers and streams flow through areas of high human activities such as industrial cities and major towns. These contaminations may include enhanced ...

Rain attenuation is a major deteriorating factor affecting radio wave signals propagating at microwave and millimetre wave bands for a typical Earth-Space Communication Link (ESCL). Several rain attenuation models have ...

Rainfall is a vital factor that must be considered in the design of telecommunication systems. The challenges posed by rainfall at frequencies above 10 GHz on microwave terrestrial and space communication systems, especially ...

In recent years, higher frequencies are being adopted for radio communication and link systems design due to the congestion at the lower frequency bands. However, at these frequency bands, the atmospheric components, ...

In this thesis, spectral estimation methods are applied to the variation in the time interval between heart beats called heart rate variability (HRV) and further to estimate the degree of accuracy of diagnosis according ...

In this work, activity concentrations of natural radionuclides in granites from eight major operational quarries in Osun State, Southwestern Nigeria were assessed. Eighty granite samples comprising 34 inch, 12 inch and ...

In this research, the ionizing radiation exposure levels at different locations in Agbara Industrial Estate were investigated. A total of 60 soil samples and effluents were taken and in-situ radiation measurement was ...

The knowledge of the variation of surface radio refractivity is required for planning of broadcasting services including terrestrial radio links over a region. The reduced–to–sea–level refractivity, No, values will remove ...

Free Space Optical (FSO) communication involves the transmission of signal-modulated optical radiation from a transmitter to a receiver through the atmosphere or outer space. The locationvariant atmospheric channel ...

Measurements of rainfall parameters such as the liquid water content (M), radar reflectivity factor (Z), rain rates (R) and the falling velocities (w) were carried out in this study using a vertically looking Micro Rain ...