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1138 articles for “Concentricity”
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Preparation and Evaluation of Herbal Gel Containing Multiple Plant Extracts for Acne Treatment
Abstract: A persistent inflammatory condition affecting the pilosebaceous unit, acne is caused by an increase in sebum production by sebaceous glands and an incorrect desquamation of hair follicles in response to rising testosterone levels throughout teenage years. Follicular obstruction results in follicular distention, which frequently triggers an inflammatory reaction and the growth of the Propionibacterium acnes bacteria. This project mainly focused on the formulation of a herbal gels for acne. These …
Published in International Journal of Biochemistry and Biomolecule Research · Vol. 3, Issue 2, 2025 · pp. 18–30 Read article
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Tribological Behaviour of PTFE based Composite Materials with Different Filler Materials: A Combine Numerical and Experimental Approach
Abstract: This study investigates the tribological behaviour of Polytetrafluoroethylene (PTFE) composites reinforced with various fillers, utilizing the Archard wear model to analyse wear mechanisms and predict wear rates. PTFE is widely recognized for its excellent chemical resistance and low friction, but its inherent wear resistance is relatively poor. To enhance its tribological properties, fillers such as glass fibres, carbon fibres, bronze, and graphite were incorporated into the PTFE matrix. In the …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 547–557 Read article
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Quasi-Static Thermal Stress Analysis in a Thin Circular Cylinder Due To Internal Heat Generation Under Transient Temperature Conditions
Abstract: This paper is concerned with inverse quasi-static thermal stress analysis in a thin circular cylinder due to internal heat generation under transient temperature conditions. The internal heat generation is modeled as a cylindrical surface heat source located in the annular region along the axial length of the cylinder. This source is placed concentrically inside the cylinder and begins releasing heat spontaneously at a specific point in time. The thin circular …
Published in Recent Trends in Fluid Mechanics · Vol. 12, Issue 2, 2025 · pp. 17–28 Read article
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The Impact of Quran Memorisation on Wellbeing: Lived Experiences of Bohra Huffaz
Abstract: The Quran, revealed over 1400 years ago, remains central to Muslims' daily lives, particularly through recitation during prayers. Quran memorisation (QM), known as Hifz, is a centuries-old tradition requiring intense cognitive engagement, discipline, and spiritual dedication. While many studies explore the psychological benefits of spiritual practices, few have examined the profound impact of full Quran memorisation on personal well-being. This study examines how Quran memorisation influences psychological well-being, particularly among …
Published in International Journal of Trends in Humanities · Vol. 2, Issue 2, 2025 · pp. 1–13 Read article
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Mathematical Modelling on Unsteady Blood Flow and Unsteady Heat Transfer Through a Stenosed Artery with Hematocrit and Slip Velocity
Abstract: A theoretical investigation concerning variable viscosity dependent on percentage concentration of red blood cell interm of total volume of blood (hematocrit) and slip velocity on unsteady flow of blood and heat transfer has been carried out. The analytical expressions for the flow characteristics and the heat transfer rate, including the velocity profile, volumetric flow rate, flow resistance, wall shear stress, and temperature profile, were obtained using the weighted residual method, …
Published in Research & Reviews: Discrete Mathematical Structures · Vol. 12, Issue 2, 2025 · pp. 16–36 Read article
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TiO₂ Nanostructured Material-based Gas Sensor for Detecting Oxygen and LPG Gases
Abstract: This Paper investigates the use of TiO2 nanowires and nanotetrapods on glass and silicon substrates for sensing combustible gases such as LPG (Liquid Petroleum Gas) and Oxygen. The growth of Titanium dioxide (TiO2) nanowires/nanorods/nanotetrapods was investigated using both physical and chemical methods. In thermal evaporation method, both with and without vacuum conditions, was employed to synthesize various TiO2 nanostructures. A vacuum coating machine was utilized to create uniform TiO2 thin …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 443–451 Read article
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RP-HPLC Analytical Method Development and Validation for Quantitative Estimation of Metoclopramide Hydrochloride in Solid Oral Formulations
Abstract: RP-HPLC technique formulated for the numerical assessment of Metoclopramide Hydrochloride in tablet formulation has been confirmed for reliability. A C18 column facilitated the chromatographic separation using a mobile phase comprising 60:40 (v/v) potassium dihydrogen phosphate buffer: meth anol mixture. Such method was used to detect, where the retained time was 6.78 minutes and Metoclo pramide Hydrochloride produced a clear peaked at 273 nm. Results were in agreement with ICH Q2 …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 12, Issue 2, 2025 · pp. 07–15 Read article
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Enhancing Delamination Resistance in CFRP Composites through surface Functionalization of Woven carbon Fiber by CuO Nanostructures
Abstract: In order to produce a nanostructured interphase that improves the interfacial interaction with an epoxy resin matrix, copper oxide (CuO) nanostructures were hydrothermally formed onto woven carbon fibers (WCF). Hexagonal CuO nanorods were created using a two-step, seed-assisted solvothermal technique on plain woven carbon fiber. This study investigates the effects of surface modification of carbon fibers by the formation of CuO nanostructures using a hydrothermal technique on the mechanical properties …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 589–602 Read article
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Circular Economy Approach in Wastewater Treatment: Recycling and Recovery
Abstract: The demand for freshwater resources has been greatly raised by the exponential expansion of urbanization, industrialization, and population, therefore causing water scarcity in many different countries. Concerning the safe disposal of sewage to safeguard public health and the environment, traditional wastewater treatment methods have mostly concentrated. These linear solutions, however, sometimes ignore the possibilities of wastewater as a useful resource. Focused on resource recovery and recycling, the circular economy (CE) …
Published in Journal of Water Pollution & Purification Research · Vol. 12, Issue 3, 2025 · pp. 1–8 Read article
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Exploring Polymer Biocomposite as a Sustainable Filter for Water Treatment
Abstract: The present study explores the utilization of polylactic acid (PLA), a renewable polymer combined with surface-modified nanocellulose (SMNC), and pectin derived from Borassus flabellifer leaves and fruits respectively. Existing methods of filtration are synthetic and affect the environment and public health at an alarming rate thereby making biopolymer-based membranes a greener and effective approach for water treatment. PLA-SMNC-pectin biofilm was fabricated using 88.5 mg PLA, 3.5% (wt. % of PLA) …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 594–608 Read article
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Mechanical Characterization of Hybrid Basalt Fiber Composites with Silicon Carbide Fillers
Abstract: Natural fiber composites (NFCs) have experienced significant growth and innovation in recent research because to their advantages over synthetic fiber composites, including their lower cost and environmental impact. This paper investigates the tension and compression properties of hybrid laminate composites composed of stainless-steel wire mesh, epoxy resin reinforced with basalt fibre, and silicon carbide (SiC) filler. Composites with varying weight percentages of SiC filler (0%, 1.5%, and 3%), were made …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 582–593 Read article
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Solid acidity of MoO3 synthesized by solution combustion method and acetalization of formaldehyde using it
Abstract: MoO 3 nanoparticles were synthesized via solution combustion approach. Ammonium nitrate was used as oxidant and ammonium molybdate as fuel in combustion reaction. XRD, FTIR and Raman spectroscopy results showed that MoO 3 nanoparticles were successfully synthesized by the solution combustion reaction. The SEM analysis showed that synthesized MoO 3 nanoparticles have rod-like shape with width and thickness of 50-200nm and length of 0.2-1μm, respectively. The XRD pattern and morphology …
Published in Journal of Catalyst & Catalysis · Vol. 12, Issue 3, 2025 · pp. 01–09 Read article
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Feature Extraction and Analysis of Bearing Faults: A Review
Abstract: One of the most important steps in identifying bearing problems is feature extraction. In order to provide a more meaningful dataset, it entails locating and extracting pertinent features from raw bearing vibration signals. Tasks involving categorization and prediction can then make use of these attributes. In many practical applications, such as monitoring rotating machinery or electronic components, the raw signals collected (e.g., vibration, current, temperature) are often complex, high-dimensional, and …
Published in Trends in Mechanical Engineering & Technology · Vol. 15, Issue 2, 2025 · pp. 20–28 Read article
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Chemical Reactor Design and Analysis: A Review
Abstract: Chemical reactors play a critical role in industries such as oil and gas, chemical processing, and power generation, where they operate under extreme pressure and handle highly toxic, compressible fluids. The growing need for alternative energy sources has led to an increased demand for vessels capable of withstanding high pressure and temperature, especially in the chemical and petroleum industries. Recent innovations in chemical reactor technology have concentrated on creating new …
Published in Recent Trends in Fluid Mechanics · Vol. 12, Issue 2, 2025 · pp. 49–59 Read article
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Chemical Modifications and Tensile Properties of Areca Leaf Sheath Fiber Reinforced Polymer Composites: A Comprehensive Review
Abstract: Areca leaf sheath (ALS) fiber is a promising eco-friendly material, offering a sustainable, lightweight, and cost-effective alternative for low-strength applications. Its natural biodegradability aligns well with the growing global demand for environmentally responsible materials. This review explores the transformative effects of chemical treatments, such as alkali, silane, and benzoylation, on the tensile properties of Areca leaf sheath fibers. Among these, alkali treatment consistently demonstrates the most significant improvement in tensile …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 94–106 Read article
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Evaluation and Study of The chemical Pollution Ratio of Dams Water in Najaf Governorate and The surrounding Environments
Abstract: The importance of water and the urgent need for a clean environment free from pollutants has drawn our attention and focused in this study on estimating and evaluating ionic pollutants of elements (iron, chromium, lead, manganese) in the water of dams in Najaf Governorate and the surrounding areas. The study included four dams, namely ()Al-Mushkhab Dam, Al-Hindiya Dam, Shatt Al-Kufa, and Umm Abbasiyat Dam)( to determine the percentage of pollution …
Published in Emerging Trends in Chemical Engineering · Vol. 12, Issue 3, 2025 Read article
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Analytical Method Development and Validation for Simultaneous Estimation of Paracetamol and Piroxicam by UV Method
Abstract: A new establishment and validation of a simple, precise, accurate and cost effective UV-Visible spectrophotometric method was developed to estimate both Paracetamol and Piroxicam simultaneously in conjoined pharmaceutical dosage forms. This technique was founded on simultaneous equation method of absorbances recorded at 252.0 nm and 282.0 nm of Paracetamol and Piroxicam in methanol respectively and an isosbestic point could be observed at 265.0 nm. It showed very good linearity over …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 12, Issue 3, 2025 · pp. 14–21 Read article
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Analytical Method Development and Validation of Simultaneous Estimation of Natural Active Constituents Andrographolide and Piperine by UV Method.
Abstract: A simple, accurate, precise, and robust UV-Visible spectrophotometric method was developed and validated for the simultaneous estimation of Andrographolide and Piperine in bulk and combined pharmaceutical dosage forms. Preformulation studies confirmed favorable physicochemical properties for both drugs, including acceptable solubility profiles, melting points, pH values, and partition coefficients. The method development involved determination of λmax values at 224 nm for Andrographolide and 288 nm for Piperine using ethanol as solvent. …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 12, Issue 3, 2025 · pp. 33–41 Read article
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Sustainable Concrete Solutions: Chemically Predictive Modeling of Geopolymer Versus Ordinary Concrete in a Circular Economy
Abstract: Concrete is a fundamental structural material widely used in civil engineering projects. It plays a key role in various types of building structures, with its quality directly influencing the durability of the construction. This research focuses on assessing the current state of concrete construction, highlighting critical issues and technical aspects in the process, while emphasizing the importance of improving construction quality and management practices. Geopolymer concrete (GPC) presents a viable …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 170–192 Read article
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Green Fabrication of Glutaraldehyde-Crosslinked Chitosan/PVA Biocomposite for Heavy Metal Removal from Wastewater
Abstract: Chitosan (CS) and Polyvinyl alcohol (PVA) are polymers that possess biodegradable, biocompatible, and non-toxic properties, making them suitable for wastewater treatment applications. The primary objective of this research is to chemically modify chitosan in a novel manner to enhance its ability to remove hexavalent chromium Cr(VI) from aqueous solutions. In this study, a composite material was synthesized by crosslinking PVA and CS with glutaraldehyde (GA), resulting in the formation of …
Published in Journal of Water Pollution & Purification Research · Vol. 12, Issue 3, 2025 · pp. 59–83 Read article