This study was aimed at concentration determination of some heavy metals (Cu, Pb, Fe, Zn and Cr) in Moringa stenopetala tree leaves at three growing stages (young, matured and aged). Determination was made on samples collected from Southern part of Ethiopia using flame atomic abs...
Open access
Research Article10.9734/PSIJ/2018/45932
Volatile organic compounds in municipal solid waste dumpsites are considered as one of the major issues in recent years. Open burning is also very common, which emits volatile organic compounds and pose a serious threat to the associated environment. Air samples were collected by...
Open access
Research Article10.9734/PSIJ/2018/42793
We investigate the basic problem of the interaction of a single quantised mode of the radiation field, modelled as quantised harmonic oscillator (HO) with a laser pulse of chirped Gaussian line-shape. The average photon number and the transient emitted spectrum are calculated ana...
Open access
Research Article10.9734/PSIJ/2018/46248
This study identified normal and abnormal conditions, features, events and processes (FEPs) those potentially influence the integrity and safety of the facility that might originate outside or inside the facility. Four hazards, namely terrorist activity, fire outbreak, floods and...
Open access
Research Article10.9734/PSIJ/2018/44436
Assessment of natural radioactivity and associated dose rates of surface soils in Oluwa Glass industry environment of Igbokoda, Ondo state, Nigeria was carried out by means of well-calibrated NaI(TI) that was well shielded with a detector coupled to a computer resident quantum MC...
Open access
Research Article10.9734/PSIJ/2018/42372
The dynamics of the quantum bouncing ball under the influence of gravity has been studied. The Fourier transform techniques was first used to derive the wave function (Airy function) of the time-independent Schrodinger wave equation for a linear potential in the form of the well-...
Open access
Research Article10.9734/PSIJ/2018/45915
Planet atmospheric compositions are determined by the availability of a gas species, its molecular weight and the mass (or gravity force) of a planet. Both Mercury and the Moon are not massive enough to hold any gas species to form an atmosphere. The observed atmospheric compos...
Open access
Research Article10.9734/PSIJ/2018/45815
Aim: Designing a lecture hall acoustics is a prestigious task which demands high accuracy of acoustical measures such as Reverberation time (T), Sound pressure levels (SPL) among other numerous parameters. In Nigeria however, little is considered about the acoustical environment...
Open access
Research Article10.9734/PSIJ/2018/44985
Aims: This study evaluated the concentration of heavy metal contamination of foodstuff by selected milling equipment (burr mill and hammer mill). Place and Duration of Study: Samples collected from a market in Akungba-Akoko Southwestern Nigeria; processed and analysed at Prof. J...
Open access
Research Article10.9734/PSIJ/2018/42572
It is natural to expect and simple to prove that every conformally flat space possess the maximal number of conformal Killing vector fields (CKVs). On the other hand, it is interesting to ask whether the converse is true. Is conformal flatness a necessary condition for the existe...
Open access
Research Article10.9734/PSIJ/2018/45191