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All published articles 983

Jones-Dole Coefficients of Electrolyte Solutions of Zncl\(_2\) in Mixtures of Propylene-Carbonate and 1,2-Dimethoxyethane

J. N. Obowu, M. Jaja & B. Abbey-Kalio · Physical Science International Journal · 2026

The paper reports the contrasting impact of non-bonding electrostatic interactions - dipole-dipole and ion-dipole interactions in ZnCl2 electrolytes; prepared in mixed solvents of propylene carbonate and 1,2-Dimethoxyehane. The organic electrolyte solutions were constituted by in...

Open access Research Article 10.9734/psij/2026/v30i2932

Optimization of a Building's Indoor Temperature and Sensitive Air-Conditioning Loads Using the BLT-Parpaing Hollow Double Wall

Daouda Sawadogo, Benjamin Kiema & Ousmane Coulibaly · Physical Science International Journal · 2026

In hot, dry tropical climates (sahelian), such as Ouagadougou (Burkina Faso), high demand for air conditioning in buildings poses a major energy challenge. This study aims to optimize the indoor temperature and sensible air conditioning loads of a typical three-bedroom F3 buildin...

Open access Research Article 10.9734/psij/2026/v30i2930

Enhanced Performance of Dye-Sensitized Solar Cells Using Natural Dye Mixtures and Mesoporous TiO₂ Photoelectrodes

F. Jabli · Physical Science International Journal · 2026

In this study, dye-sensitized solar cells (DSSCs) were fabricated using natural dyes extracted from blackberry, spinach, and red cabbage as environmentally friendly photosensitizers. The optical properties of the extracted dyes were examined using UV–visible spectroscopy. The pho...

Open access Research Article 10.9734/psij/2026/v30i2931

Numerical Study of Forced Convection Film Condensation in a Channel with Porous Walls

Momath Ndiaye, Ibrahima FAYE & Mbaye GUEYE · Physical Science International Journal · 2026

This work presents a numerical study of laminar film condensation of a pure saturated vapor under forced convection inside a vertical plane channel whose walls are covered with a porous material. The mathematical model, based on the conservation equations of mass, momentum, and e...

Open access Research Article 10.9734/psij/2026/v30i2929

Study of the Cathodoluminesence Properties of Sio2:Pr3+ and Zno.Sio2: Pr3+ Nanopowder Phosphors and Investigated the Dependence of Luminescence Properties

Dhaneshwari Patle & Shailendra Jain · Physical Science International Journal · 2026

The present study focused on the luminescence behavior of trivalent rare earth ions in sol-gel derived SiO₂ and ZnO co-doped SiO₂:Pr³⁺ nanophosphors, with the aim of understanding their cathodoluminescence (CL) characteristics under varying synthesis and experimental conditions....

Open access Research Article 10.9734/psij/2026/v30i1928

Impact of Chromatic Dispersion on NRZ, RZ and DPSK Modulation Formats in Different Optical Links of a 402 km Metropolitan Optical Backbone

Atani Dominique KOLAH, Agbéssignalé LATO & Barèrèm-Mêlgueba MAO · Physical Science International Journal · 2026

The use of optical fiber has revolutionized the optical telecommunications sector. Optical fiber enables faster data transmission in telecommunications networks. Data transmitted in fiber optic systems are affected by several phenomena during their propagation such as chromatic d...

Open access Research Article 10.9734/psij/2026/v30i1927

Effect of Indium on Bond Distribution, Cohesive Energy, Heat of Atomization and Electro Negativity in Se98-xCd2Inx (0≤x≤10) and Se75Te15-xCd10Inx (0≤x≤15) Chalcogenide Glasses

Sunil Kumar · Physical Science International Journal · 2026

This review paper related to the effect of indium (In) on the bond distribution, cohesive energy (CE), average heat of atomization (Hs) and average electro negativity χave of chemically modified chalcogenide glasses belonging to the study of physical parameters of Se98-xCd2Inx (0...

Open access Research Article 10.9734/psij/2026/v30i1926

Theoretical Study of the Spectral Response of Photodiodes Based on GaSb and GaInSb under Reverse Polarization: The Electric Field Effect

Mamadou Dia, Abdoul Aziz Correa, Chamsidine Sow, Yves Tabar & Babacar MBOW · Physical Science International Journal · 2026

Several semiconductor materials are currently retaining attention with a view of elaboration of photodiodes in near-infrared. Photodiodes are essential components in numerous applications, including medical imaging, remote sensing, telecommunications, and optical communication sy...

Open access Research Article 10.9734/psij/2026/v30i1925

Assessment of Transmission Factors and Shielding Requirements for Lead, Concrete and Iron in PET Imaging Environments

KEM. Mohamadain, Zeinab K. Osman & Nada.AA. Tahir · Physical Science International Journal · 2026

Positron Emission Tomography (PET) facilities require tailored radiation shielding because of the highly penetrating 511 keV annihilation photons and the increased construction costs associated with overly conservative designs. In many low-resource settings, reliance on Monte Car...

Open access Research Article 10.9734/psij/2026/v30i1923

Structural and Spectroscopic Analysis of Treated Water with a Crystal Instrument

Ignat Ignatov & Ludmila Pesotskaya · Physical Science International Journal · 2026

The water investigated in this study – generated via crystal-mediated activation and designated as Alpha Omega Water – exhibits measurable modifications in its hydrogen-bond network and in parameters associated with hydrogen-bond and related interactions. A multidisciplinary anal...

Open access Research Article 10.9734/psij/2026/v30i1924

Assessment of Wind Energy Potential in North Central Nigeria Using Weibull Distribution for Sustainable Energy Planning and Generation

A Kabir, O Cecilia & L Sylvia · Physical Science International Journal · 2026

This study assesses the wind energy potential of five states in North Central Nigeria: Benue, FCT Abuja, Kogi, Kwara, and Nasarawa using statistical modeling of wind speed data. Monthly mean wind speed data were analyzed with the two-parameter, Weibull probability distribution fu...

Open access Research Article 10.9734/psij/2026/v30i1922

UV and IR Studies of Nano and Bulk Schiff Base Compounds of Cobalt and Nickel Transition Metals

S. Mishra & Reena Bhatt · Physical Science International Journal · 2026

Physical techniques are used in addition to chemical analysis to characterize both pure and mixed compounds. Optical spectroscopy in the ultraviolet and visible light range (UV/VIS) is extensively utilized across nearly all industries and environments for research, manufacturing,...

Open access Research Article 10.9734/psij/2026/v30i1921

Experimental Analysis of Pre-Ignition Transients and Flow Instabilities in Cryotechnic Space Rocket Engine

Philippe Fauquet-Alekhine · Physical Science International Journal · 2025

The safe ignition of cryotechnic space launchers is threatened by flow instabilities that occur before ignition, a phase that remains poorly understood. While most research focuses on post-ignition instabilities, we investigated the critical few hundred milliseconds preceding ign...

Open access Research Article 10.9734/psij/2025/v29i6920

Thermodynamic and Superstatistical Analysis of a Harmonic Oscillator with Position-Dependent Mass

Daniel Sabi Takou, Assimiou Yarou Mora & Gabriel Y. H. Avossevou · Physical Science International Journal · 2025

In this paper, we investigate the thermodynamic behavior of a quantum harmonic oscillator with a positiondependent mass (PDM), where spatial inhomogeneity is introduced through a deformation parameter α. Using the exact energy spectrum, we derive the associated thermodynamic quan...

Open access Research Article 10.9734/psij/2025/v29i6919

Self-Healing Polymer Composites from Waxy Maize Starch: Mechanisms and Sustainable Applications

Arum Chinaecherem Tochukwu, Simon Bbumba, Okafor Chukwuebuka Ubaka, Saifullahi Mukhtar & Chinedum Ogechukwu Emelda · Physical Science International Journal · 2025

Herein, we reviewed a highly branched, amylopectin-rich biopolymer, waxy maize starch (WMS), which promises to be a good matrix for durable self-healing polymer composites. Brittle petroleum-based polymers and native starch films lack barrier properties and self-healing. Sustaina...

Open access Research Article 10.9734/psij/2025/v29i6918