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Articles by R.K. Odunaike
Total Records ( 5 ) for R.K. Odunaike
  R.K. Odunaike , S.K. Alausa , O.A. Oyebanjo , G.C. Ijeoma and A.O. Alo
  The menace of waste dumps in most of our urban centres or cities cannot be over emphasized and its subsequent health hazards needs to be determined for public enlightenment. This motivated the present study in which the authors employed radiation detection method to examine the total intensity and interaction with matter on dumps sites in Lagos metropolis. The results of our investigation on the dumpsites showed that no dump site radiates up to one half of the United Nations Scientific Committee On Effect of Atomic Radiation of 70 ÁSv/y. The mean annual absorbed dose rate of 21.8 ÁSv/y obtained in the study is minimal and that the effect on human health would be very low. Our recommendation is that these waste sites should be effectively managed and re-cycled to reduce the negative aesthetic appeal it has on the environment.
  R.K. Odunaike , V.U. Chukwuma , E.B. Ejiwunmi , J.A. Laoye , A.O. Williams and T.O. Ogunwale
  This study presents the study of effect of weak magnet fields on the haemotological and some Histological parameters of Albino rats exposed for a period of 6 h per day for 2 weeks. Analysis on these parameters clearly showed that no significant differences were observed in both the haemotological and histological studies and therefore poses no serious health risk of any kind. It however recommends that GSM users should not be scared of the usage of their cell phones but to avoid abuse at instantaneous period because the somatic changes might result in late biological injury.
  R.K. Odunaike , V.C. Ozebo , S.K. Alausa and I.M. Alausa
  In this research, the authors employed radiation detection methods to examine the radiation intensity or exposure at 5 quarry sites and their respective neighborhood villages in Ogun State of Nigeria. The highest annual dose rate or exposure of 49.1 ÁSv year 1 was recorded at Equation Limited (Q3) in Obafemi Owode Local Government area in Ogun State of Nigeria. However, this result (49.1 ÁSv year 1) and others from the remaining locations or sites are smaller than the world average of 70 ÁSv year 1 but recommended that workers at quarry sites should always put on masks to eliminate or reduce the amount of radioactive inhalation. Regular comprehensive monitoring of radiation level of each worker by putting on Thermo Luminescent Dosimeters (TLDs) which could be read and interpreted must be encouraged.
  R.K. Odunaike , A.A. Oberafo , M.G. Zebaze Kana and J.A. Laoye
  The geometrical effect of probe shape in a two point arrangements were investigated by measuring the surface electrical current density-voltage (J-V) characteristics as deposited thin films of tellurium with antimony probes. The chosen geometry of antimony probes in contact with the Te-samples were triangles, rectangles, semicircles and segments of circles whose each pair was of 2 types of probe extension. The first was the uniform electrode width configuration in which the metal (Sb) electrode width was continuous at the edge of the Te-sample while the second was the differential electrode configuration is which the metal electrode width was discontinuous as the edge of the Te-sample region. The results showed that the surface density-voltage characteristics were linear in every case. The rectangular electrode pair gave the least values, followed by the semi-circular pair and finally the triangular pair. In the latter 2 cases, the results for both uniform and differential electrode width configuration were practically the same.
  V.C. Ozebo , R.K. Odunaike and A.A. Balogun
  The depth to top of limestone body within a concession at Ibese, in Ogun state, Southwestern Nigeria was evaluated using the Vertical Electric Sounding (VES). The electrical resistivity method employing the VES technique was used to carry out the geophysical investigation and a total 10 VES data was acquired. Three curve types were identified from the acquired data which are the H, A and HK-type curves. Also a geo-electric section was obtained from the result of the field sounding areas, where all the materials above the limestone is regarded as an overburden. The study area (line) spans 5 km of which the trend (direction) of the limestone was found to be NW-SE. VES locations 2, 5, 6, 7, 8 were found to have a shallow depth which is less than 6 m and can be said to be of economic importance.
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