The use of lowlands for refuse collection point (dumpsite) is a very common practice in Nigeria. However, people cultivated the areas within the vicinity of the dumpsites, without knowledge of the risk of these heavy metals. Therefore, this study was done to evaluate the risk of...
Open access
Research Article10.9734/psij/2021/v25i130236
Serge Wendsida Igo, Gaël Lassina Sawadogo, Drissa Ouedraogo, Abdoulaye Compaoré, David Namoano & Joseph Dieudonné Bathiébo·Physical Science International Journal·2021
This work is devoted to a numerical study of the performance of a double insulated barbecue oven using terracotta bricks and plywood. The numerical methodology is based on the nodal method and the heat transfer equations have been established by performing an energy balance on ea...
Open access
Research Article10.9734/psij/2020/v24i1130222
Along with the development of engine technology to be able to produce maximum efficiency in aircraft jet engines, various modifications were made to the machine tools. Modifications are made by taking into account four main factors, namely: maximum power output, reduced engine we...
Open access
Research Article10.9734/psij/2021/v25i130231
A theoretical model that relates the rotational Doppler shift of a photon and the rotational velocity of the lenses traversed by the beam of light, is presented. The mathematical relation, which is resolved in the context of a four-dimensional Minkowski flat spacetime and Cartesi...
Open access
Research Article10.9734/psij/2020/v24i1030220
Regular execution of quality control (QC) tests in medical diagnostic X-ray units is primarily important to provide high-quality images and proper diagnoses with least hazard. The performance criteria in diagnostic radiology in Zanzibar Islands, Tanzania were followed in accordan...
Open access
Research Article10.9734/psij/2020/v24i1230228
The appropriate placements of the four-dimensional spacetimes of different universes make their coexistence possible, such that corresponding points in spacetimes within the universes are not separated in space or time. The corresponding points do not touch, because they are poin...
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Research Article10.9734/psij/2020/v24i1230229
Self-organization in small systems of particles with simple dynamic laws has been simulated. The purpose of this work is to investigate self-organization in small systems where we could follow individual particles. The intention is to look for pattern formation as the system ev...
Open access
Research Article10.9734/psij/2020/v24i1230230
First principles pseudopotential method based on density functional theory is used to investigate the Structural, Mechanical, Phonon, Thermodynamic and Electronic properties of Mg2Sn. The equilibrium properties including lattice constant, bulk modulus, pressure derivative cohesiv...
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Research Article10.9734/psij/2020/v24i1230232
The Wave-Particle Duality is a basic property of microscopic particles. As a basic concept of quantum mechanics, the wave-particle duality theory from elementary particles to big molecules had been verified by lots of experiments. Different from electromagnetic wave, the matter w...
Open access
Research Article10.9734/psij/2020/v24i1130221
The thermodynamic properties at equilibrium, in this case, enthalpy, pressure, temperature, mass fraction, of working pairs are very important for researchers and in the design of absorption refrigeration systems. Although some authors have carried out their research in this dire...
Open access
Research Article10.9734/psij/2020/v24i1130223