Afe Babalola University, Ado-Ekiti
Mathematical and Physical Sciences
An algebraic version of the Closed Graph Theorem is proved. This yields a characterization of orthocontinuous linear transformations on quadratic spaces and also settles an open question as to whether or not an everywhere defined closed... more
In this work a Lax-Milgram type theorem is proved for quadratic spaces over a division ring K with involution *, say, whose center contains an ordered domain P such that for every element a in K9 αα * = |α|2, (where |α|, the absolute... more
An algebraic version of the Closed Graph Theorem is proved. This yields a characterization of orthocontinuous linear transformations on quadratic spaces and also settles an open question as to whether or not an everywhere defined closed... more
Increasing competition between GSM service providers and several calls for improvement of their quality of service from members of the public has led to proliferation of base station (BTS) masts in Nigeria. Consequently, there is an... more
An assessment of radiofrequency exposure due to GSM 900 and GSM 1800 was carried out at 30 strategic locations in the University College Hospital (UCH), Ibadan with a frequency selective spectrum analyzer (SPECTRAN HF 60105). The Spectrum... more
The quantitative evaluations of naturally occurring radioisotopes in environmental media have provided significant information on the geological and radiological characteristics of different environments around the world. In furtherance... more
The radon concentration and natural radioactivity i n soil of Aramoko, Ekiti State, Nigeria have been d etermined. The soil gas radon measurement was performed in-situ with Rad7 r adon monitor coupled with a soil gas probe. Natural... more
Agbabu community in Ondo State Southwestern, Nigeria, is characterized by the high volume of bitumen deposit. The level of radon concentrations in soil gas and groundwater was assessed using RAD 7. Soil gas radon concentration ranged from... more
Drinking water samples obtained from different groundwater sources in Ekiti State, Nigeria were assayed for radon concentration with the aid of a Durridge RAD7 electronic radon detector. In the three types of well considered, higher radon... more
An assessment of radiofrequency exposure due to GSM 900 and GSM 1800 was carried out at 30 strategic locations in the University College Hospital (UCH), Ibadan with a frequency selective spectrum analyzer (SPECTRAN HF 60105). The Spectrum... more
Vehicle tracking system using GSM GPRS GPS and Arduino Microcontroller can provide complete location information to user over mobile phone. This system, on request of the user, gives real time update about vehicle location by sending SMS... more
These recent studies discuss the micro physical characteristics of a raindrop associated with strati-form rainfall type. The observed drop shapes are between 0.25mm and 1mm spheroidal drop shapes. In a theoretical sense, the rising... more
Health hazards reported to be associated with exposure to electromagnetic radiations which include brain tumors, genotoxic effects, neurological effects, immune system deregulation, allergic responses and some cardiovascular effects are... more
Copper-doped hematite thin films were prepared by spray pyrolysis technique using a mixture of ethanol and distilled water precursors. Visual observations showed that aqua precursor produced films of less integrity compared with ethanol... more
The design and analysis of Parabolic Trough Solar Thermal Collector (PTSTC) system used to generate hot/steam water for domestic and industrial purposes were carried out. The parametric studies were also conducted on the collector, study... more
The nanoparticles of pure and Ni doped CdS were synthesized by sol gel route in aqueous medium. The obtained particles were characterized by X-ray diffraction studies (XRD). The results of structural characterization show the formation of... more