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All published articles 345

A Hyperbolic Tangent Damping Function for the Turbulence Model: Mathematical Formulation and Analytical Properties

E. E. Iyeme, E. O. Odok & E. A. Etikpe · Asian Journal of Physical and Chemical Sciences · 2026

The standard \(k-\varepsilon\) turbulence model as we know, requires damping functions to correct the over - prediction of eddy viscosity in low turbulent Reynolds number regions. The existing damping functions, such as the Launder - Sharma exponential formulation are mathematica...

Open access Research Article 10.9734/ajopacs/2026/v14i2320

Physicochemical Analysis of Stream Water from Sabon Barki of Bokkos LGA of Plateau State, Nigeria

John Rople Gungshik, Mohammed Ibrahim, Samuel Emmmanuel Egga, Magdalene Sazeya Ayuba & Juliet Dodo Dingtsen · Asian Journal of Physical and Chemical Sciences · 2026

The availability and access to portable water has been a global problem especially in developing countries where regulations and government policies is poorly implemented and managed. The determination of the physical and chemical parameters of stream water samples from Sabon Bar...

Open access Research Article 10.9734/ajopacs/2026/v14i2319

Ionic Conductivity Study of a New Promising Blended Solid Polymer Electrolytes for Sodium-ion Transport: Synthesis and Characterization

Angesh Chandra, Lumeshwari Sahu, Alok Bhatt & Archana Chandra · Asian Journal of Physical and Chemical Sciences · 2026

Superionic polymer electrolytes are advanced solid-state ionic materials with high conductivity, widely studied for next-generation electrochemical device applications. In this study, Polyethylene oxide (PEO) and Polyvinyl pyrrolidine (PVP)-based a new sodium-ion conducting blend...

Open access Research Article 10.9734/ajopacs/2026/v14i2318

Hydrodynamic Radius of Poly (Ethylene Glycol) 6000 Determined via Characterization of Composition-Dependent Aqueous Two-Phase Equilibrium System

Adedayo A. Fodeke · Asian Journal of Physical and Chemical Sciences · 2026

This work was carried out to develop a simple method for the determination of hydrodynamic radius of poly (ethylene glycol) 6000 (PEG-6000). The contribution of the activity coefficients of PEG-6000 and a mixture of phosphate and sodium chloride salts to the apparent equilibrium...

Open access Research Article 10.9734/ajopacs/2026/v14i2317

Antibacterial and Antioxidant Activity of Copper (II) Complexes of Senna Podocarda Extract

A. O. Ojo, I. A. Adedoyin, O. O. Akande, O. A. Okekunle, O. G. Olugbodi, L. A. Aribisala, O. F. Bamigboye & I. A. Amuzat · Asian Journal of Physical and Chemical Sciences · 2026

Senna podocarpa (Guill. & Perr) LOCK formerly Cassia podocarpa Guill. Et. Perr (Leguminosae-Caesalpinoidae) is a medicinal plant used extensively for the treatment of skin diseases. The leaves are commonly known for their anti-gonorrheal and purgative properties as well as gu...

Open access Research Article 10.9734/ajopacs/2026/v14i2315

Assessment of Excess Lifetime Cancer Risk from Background Ionizing Radiation at Aluu and Eliozu Dumpsites in Obio/Akpor Local Government Area

Orlunta, Aloysius Ndubisi & Sokari, Sylvester Akinabie · Asian Journal of Physical and Chemical Sciences · 2026

Excess lifetime cancer risk refers to the likelihood of an individual developing cancer due to exposure to a particular carcinogenic agent. It is expressed as an additional increase in cancer incidence within an exposed population compared to what would normally be expected witho...

Open access Research Article 10.9734/ajopacs/2026/v14i2316

Evaluation of Radiation Health Risk in Major Automobile Mechanic Villages in Port Harcourt, Rivers State, Nigeria

Sokari, Sylvester Akinabie, Orlunta, Aloysius Ndubisi & Onwuka, Maduabuchi · Asian Journal of Physical and Chemical Sciences · 2026

Humans are continuously exposed to natural and artificial radiation sources, and while ionizing radiation can damage cells and DNA depending on dose and exposure levels, its effects are generally negligible when kept within accepted safety limits. An In-situ measurement of backgr...

Open access Research Article 10.9734/ajopacs/2026/v14i2312

Mechanical Characterization of a Composite Material Made from Recycled Plastic and Sand under Compression and Bending Loads

Xavier Bazemo, Salifou Ouedraogo, Moussa dit Corneille TARPILGA, Issa Traore, Kevin Namoulniara & Bétaboalé Naon · Asian Journal of Physical and Chemical Sciences · 2026

This study is part of an initiative to valorize plastic waste for use in sustainable construction materials. Indeed, despite the growing interest in plastic-sand composites, a significant research gap remains regarding the optimization of plastic content to achieve a balance betw...

Open access Research Article 10.9734/ajopacs/2026/v14i2313

Evaluation of Excess Life Cancer Risk in Rumuokwurushi Town in Obio/Akpor LGA, Port Harcourt, Rivers State, Nigeria

Onwuka, Maduabuchi & Sokari, Sylvester Akinabie · Asian Journal of Physical and Chemical Sciences · 2026

Radiation is a naturally occurring energy present as particles or waves, widely used in fields like medicine and industry, but excessive exposure to ionizing radiation can cause serious health effects despite its beneficial applications. An In-situ measurement of background ioniz...

Open access Research Article 10.9734/ajopacs/2026/v14i2314

Thermal Efficiency Enhancement and Entropy Generation Reduction in Solar-powered Water Pumping Systems Using Oldroyd-B Hybrid Nanofluids in Nigeria

Ndubuisi O. Okoro, E. O. Fatunmbi & A. M. Obalalu · Asian Journal of Physical and Chemical Sciences · 2026

With the growing demand for sustainable and efficient energy solutions, optimizing solar water pumping (SWP) systems has become a priority. This study evaluates the thermal performance of a hybrid nanofluid (HNF) composed of AA7075–Ti–6Al–4V/ethylene glycol and compares it with a...

Open access Research Article 10.9734/ajopacs/2026/v14i2310

Physicochemical Characterization and Spatial Variability of Leachate and Its Environmental Implications at Aluu Municipal Dumpsite, Port Harcourt, Nigeria

Erefama Ekine Esonanjor, C. Akpelu & Tammy Morrison · Asian Journal of Physical and Chemical Sciences · 2026

Background: Leachate from open, unlined landfills, particularly in tropical regions like the Niger Delta, contains high levels of toxic and poorly biodegradable contaminants. Its infiltration into soil and water systems poses serious environmental and public health risks. Aim: Th...

Open access Research Article 10.9734/ajopacs/2026/v14i2308

Fabrication and Discharging Behaviour of Solid-State Batteries Using Newly Synthesised Fast Ion Conducting Material as an Electrolyte

R. K. Nagarch & R. Kumar · Asian Journal of Physical and Chemical Sciences · 2026

Solid-state batteries use fast ion-conducting solid electrolytes instead of liquids, offering higher safety, energy density, thermal stability, and longer lifespan. They are promising for applications from portable electronics to electric vehicles, potentially enabling faster cha...

Open access Research Article 10.9734/ajopacs/2026/v14i2309

Characterization and Evaluation of Heavy Gasoline from the RFCC Unit of Zinder Refining Company (SORAZ)

DOKA DAOURA Amadou, ABDOUL BARI IDI Awali, SAED ALI NAJI Zinab, SABIOU MAHAMAN Attika & MANZOLA Abdou Salam · Asian Journal of Physical and Chemical Sciences · 2026

Cracked heavy gasoline from SORAZ contains hydrocarbons and trace pollutants that release toxic emissions upon combustion. Ensuring its physicochemical quality is essential for environmental safety and energy performance. This document presents a summary of the study on the chara...

Open access Research Article 10.9734/ajopacs/2026/v14i2307

Assessment of Physicochemical and Microbial Quality of Selected Wells in Macabalan, Cagayan de Oro City

Marwah S. Acub, Venice P. Chua, Ross Zion P. Advincula, Christian Jake L. Nanale, Amal B. Acub, Samantha Aguilar, Tracy Jean E. Antiquera, Gercil Jane Q. Barona, Thalia Vil Bilar, Daniela Faye G. Crisologo, Kalene May L. Dacar, Ma. Vanessa Michelle S. Enriquez, Princess Erica T. Gica, Ashlley P. Pahillan, Natasha Ellen S. Uba, Alliore P. Tabian & Cristy Wyin L. Montecalvo · Asian Journal of Physical and Chemical Sciences · 2026

This study employed a descriptive–comparative quantitative research design to assess the physicochemical and microbial quality of water from three selected community wells in Barangay Macabalan, Cagayan de Oro City, Philippines, and determine its suitability for domestic non-drin...

Open access Research Article 10.9734/ajopacs/2026/v14i2305

Synthesis and Characterization of Engineered Nanobiochar for Enhanced Removal of Excess Fluoride in Water

Y. G. Ranga, S. Y. Goji, L. D. Solomon, D. A. Bala, M. M. Gocheka & H. U. Dibal · Asian Journal of Physical and Chemical Sciences · 2026

Fluoride contamination in groundwater poses serious public health risks in many developing regions. This study reports the synthesis, characterization, and application of hydrochloric acid (HCl)-engineered corncob-derived nanobiochar for fluoride removal from aqueous solutions. C...

Open access Research Article 10.9734/ajopacs/2026/v14i2303