International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2537

Table of Content: October-December, 2021; 16(4)

October 2021

Performance analysis of the 23 MWp grid connected photovoltaic plant in Diass Senegal

This paper presents the performance analysis of a 23 MWp photovoltaic solar power plant installed in Diass, Senegal. The solar photovoltaic power plant is composed of 85608 polycrystalline PV modules and 8 transformer stations (TS). Each TS consists of 4 inverters, several DC BOX and 2 transformers. The environmental and performance data of the plant used in this work were recorded throughout the year 2020. The...

Author(s): Fatima LACH-HEB, Mamadou Lamine NDIAYE, Anna Kerstin USBECK and Mohamed Cherif AIDARA  

October 2021

Design, green synthesis and reactions of 2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6 sulfonohydrazide derivatives

2,3-Dioxo-1,2,3,4-tetrahydroquinoxaline-6-sulfonohydrazide and its derivatives were synthesized and characterize by IR, 1H-NMR, 13C-NMR and mass spectrometry analytical methods. The 2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6-sulfonyl hydrazide (compound 1), was synthesized from the reaction of o-phenylenediamine with oxalic acid to obtain quinoxaline-2,3-dione, which was subjected to chlorosulfonation with chlorosulfonic...

Author(s): Festus O. Taiwo and Craig A. Obafemi

October 2021

Total electron content (TEC) seasonal variability under fluctuating activity, from 2000 to 2002, at Niamey station

This paper presents the Total Electron Content variability, during the solar cycle 23 maximum under geomagnetic fluctuating activity conditions from 2000 to 2002 at Niamey station (lat. :13°28’N ; long : 2°10’E) in Niger. A comparative study of TEC profiles variation under quiet and fluctuating geomagnetic activity conditions allowed us to analyze the effects of fluctuations in solar wind on...

Author(s): Zoundi Christian, Bazié Nongobsom, Kaboré M’Bi, and Ouattara Frédéric

November 2021

High pressure phase stability, elastic anisotropy and electronic properties of BC2N

Crystal lattice structure searching by Particle Swarm Optimization (PSO) and first-principles structural optimization have been used to explore polymorphs of BC2N, possessing sp3 hybridization, under a varying applied hydrostatic pressure. Two low Gibbs free energy structures were identified: one with a primitive orthorhombic structure and Space Group, Pmm2, and the other with a primitive tetragonal structure and Space...

Author(s): Habanyama A., Samukonga G., and Mumba N. K.  

November 2021

Monitoring the loss of mass or the volume recessed into a waveguide by resonant signal principle: Nano-inscribed slots in DUV210 micro-resonators

The goal of this paper is to study the impact of a differential mass loss or a lack of material (void) directly located into the core structure of matter together with the possibility of measuring its effect by a resonant signal surface at optical frequencies. To this end, the focus has been on the evolution of effective indices or eigenvalues of micro-resonators as relevant models. Specific lack of mass was measured by...

Author(s): Arthur Doliveira, Lucas Garnier, Fabrice Mahé, Hervé Lhermite, Etienne Gaviot and Bruno Bêche  

December 2021

Plastics: The good, the bad and the ugly

Plastics’ demand and consumption is on the increase since 1950s due to their unique properties. Their high use coupled with challenges in end-of-use handling and their inherent resistance to degradation has led to their accumulation in the environment, which is a matter of grave concern. This review presents a general overview of the state of knowledge of the diverse faces of plastics with special reference to...

Author(s): Kamweru Paul K. and Tindibale Edward L.  

December 2021

Solar activities and geomagnetism: Long-term statistical study of magnetics clouds activity day’s occurrence as a function of the phases of solar cycles 11 to 24

This article examines magnetics clouds activity day’s occurrence as a function of the different phases of the solar cycle and the duration of their geoeffectiveness. The study period extends from cycle 11 to cycle 24. Magnetic clouds activity day’s occurrence were identified using pixel diagram from the years 1867 to 2019, that is to say, fourteen (14) solar cycles. The results show that in the study period:...

Author(s): Kaboré Salfo, Guibula Karim, Zerbo Jean Louis, and Ouattara Frédéric,  

December 2021

Theoretical and experimental studies of effective carriers lifetime: Magnetic effects

In this manuscript, we present a study on the effects of magnetic field on charge carrier effective lifetime within the base of a polycrystalline PV solar cell p-n junction. This study is elaborated in two forms as a theoretical study and an experimental study. Indeed, under various magnetic field values, PV solar cell is illuminated by using the light from stroboscopic. From a theoretical approach mainly use the open...

Author(s): SAM Raguilignaba, DIASSO Alain, ZOUMA Bernard and ZOUGMORÉ François