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24 articles for “dispersion coefficient”
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Modeling Reaction Rate of Dispersion Coefficient and Oxygen Deficit on Nitrobacteria Transport in Onu-Imo River
Abstract: The migration rate of nitrobacteria in the Onu-Imo River was monitored based on some variables that determine the predictive model for such pollution transport. These parameters were factors applied in developing the derived model for the study. The variables were integrated into the system to monitor their various rates of impact on the transport process in the study environment. This was monitored by applying a one-dimensional flow transport system at …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 11, Issue 1, 2021 · pp. 28–41 Read article
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Grey relational fractional programming and cross-evaluating method for multi-attribute decision making problem in spherical fuzzy setting
Abstract: To apply the spherical fuzzy sets(SFSs) for multiple attribute decision making (MCDM) problems have the more realistic significance, because of the assessment data specified by experts are mostly fuzzy and uncertain, the uncertainty and vagueness, ambiguity and subjectivity of the information in an intricate decision making environment, In this paper, a method to acquire attribute weights of interval number form by using the maximization method of the grey relational relative …
Published in Research & Reviews : Journal of Statistics · Vol. 12, Issue 3, 2023 · pp. 40–52 Read article
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Development and Characterization of a Solid Dispersion of an Anti-Diabetic Drug Using Pectin as a Natural Polymer
Abstract: Aim: The current study sought to improve the solubility and oral bioavailability of gliclazide by creating solid dispersions and oral dispersible tablets (ODTs) with enhanced physicochemical characteristics and maintained antidiabetic action. Methods: Preformulation studies were conducted to evaluate the physicochemical properties of gliclazide, including physical appearance, melting point, solubility, and partition coefficient. Solid dispersions were prepared using hydrophilic carriers-pectin and PVP K30, and subsequently characterized by Fourier Transform Infrared Spectroscopy …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 17, Issue 2, 2026 · pp. 01–12 Read article
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Molecular Investigation of CO2 Solubility and Diffusion in Crude Oil
Abstract: It is important to know solubility and molecular diffusion coefficients of gas under reservoir CO2 Enhanced Oil Recovery. In this paper, a set complete device has been established to measure solubility and molecular diffusion coefficients of gas to improve the empirical formula and chart. Based on the experiment, molecular diffusion coefficients and solubility is evaluated, which provides the fundamental data to CO2 Enhanced Oil Recovery. The solubility vs. pressure linear …
Published in Journal of Petroleum Engineering & Technology · Vol. 3, Issue 2, 2013 · pp. 28–35 Read article
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A smart fluids; Magneto rheological, ferrofluid, and nanofluids; a prospect for Medical and Technological application
Abstract: The physiochemical and biomedical applications of smart fluids, typically ferrofluid, magnetorheologicalfluids, and nanofluids are studied. It is predicted that these fluids are impacted by the three most important rheology parameters, namely strain, magnetic field, and temperature. The magnetoresistive contribution is treated in terms of drug force in order to determine thecoefficient of viscosity. The research presents that the viscosity of studied fluids will increase in proportion to applied magnetic field. …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 25, Issue 2, 2023 · pp. 47–57 Read article
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Evaluation of Fly Ash/ZrO2 Reinforced AZ91E Hybrid Composites Based on Wear and Friction Characteristics
Abstract: In the current study the compo-casting Al alloy MMCs' wear resistance was examined under a variety of abrasive circumstances, including coefficient friction, wear rate and it’s sliding distance. The AZ91E matrix composite was made by the liquid metallurgy process and reinforced with aluminum plated zirconium dioxide (ZrO2) particles. Designers examined the characteristics of matrix alloys along with created composites. friction and wear from dry sliding experiments had been performed on …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 324–338 Read article
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Experimental Investigation on Heat Transfer Enhancement in Shell and Tube Heat Exchanger Using Graphene Nanofluids
Abstract: The paper focuses on the dispersion of Graphene nanoparticles in a water–ethylene glycol based fluid to investigate their impact on the convective heat transfer performance of the resulting nanofluid. Various concentrations of graphene nanoparticles were prepared, and the nanofluids were subjected to different ultrasonication durations to ensure proper dispersion and stability of the nanoparticles within the base fluid. The study involved extensive experimental evaluation to systematically analyze how the nanoparticle …
Published in Journal of Automobile Engineering and Applications · Vol. 12, Issue 3, 2025 · pp. 32–38 Read article
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Mechanical & Tribological Characterization of Al2024-Alumina-Graphite Reinforced Monolithic and Hybrid Composites
Abstract: This work investigates the mechanical characteristics of Al2024-Al2O3-Graphite reinforced monolithic and hybrid composites fabricated by the stir casting method. Exploratory work involved the fabrication of monolithic composites with varying Al2O3 contents (5-8 wt%) and hybrid composites with the ratios of Al2O3 (2-6 wt%) and Graphite (1-3 wt%) in matrix Al2024. For improving their dispersion, preheated reinforcement particles were introduced in matrix alloy at controlled stirring rates. A homogeneous particle distribution …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 823–836 Read article
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Evaluation of Mucoadhesive Polymers for Nasal Delivery of Herbal Bioactives
Abstract: A study assessed mucoadhesive polymers for intranasal herbal bioactive administration with higher residence time and mucosal permeability. Chitosan, Carbopol® 934P, and HPMC K15M were utilized to manufacture mucoadhesive nasal gels with standardized herbal bioactive fractions. Formulations were examined for pH, viscosity, spreadability, drug content, mucoadhesive strength, in-vitro release, ex-vivo penetration, and short-term stability. All formulations demonstrated a suitable pH for nasal usage and uniform drug content (97.48 ± 1.12% to …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1680–1689 Read article
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A Review on Thermodynamic Analysis of thermal Heat Dissipating Fins
Abstract: The Engine chamber is one of the essential motor components, that is exposed to extreme temperature varieties and thermal burdens. Balances are set on the outer layer of the chamber to improve the measure of Heat & mass transfer by convection. For thermal investigation of the motor chamber blades, it is more gainful to know the Heat & mass transfer dissemination inside the chamber. Present review has been done to …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 8, Issue 2, 2021 · pp. 13–21 Read article
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Fabrication and Assessment of Tribological Performance of Nickel-Graphene-MXene Hybrid Nano-composites
Abstract: As industries such as aerospace, automotive, defence, and electronics demand materials with superior wear resistance, high strength, and thermal stability, traditional metals are reaching their performance limits. Hybrid nanocomposites offer a pathway to meet these stringent requirements. In this study, novel Nickel-Graphene-MXene hybrid nanocomposites were fabricated using a powder metallurgy route, incorporating varying weight percentages (up to 2 wt.%) of MXene and 1 wt.% graphene nanosheets into a nickel matrix …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 780–798 Read article
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Synthesis and Characterization of Forsterite Incorporated HDPE Composites for Microwave Substrate Application
Abstract: High Density Polyethylene (HDPE) combined with dispersed forsterite (Mg₂SiO₄) powder was utilized to fabricate polymer matrix composites (PMCs) aimed at high-frequency microwave substrate applications. Forsterite powders were synthesized using the mixed oxide method, and their phase purity was confirmed by X-ray diffraction (XRD) analysis. The dispersion and morphology of the ceramic filler within the HDPE matrix were examined through Scanning Electron Microscopy (SEM), ensuring a homogeneous distribution essential for optimal …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 109–120 Read article
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Structure-Property-Process Relationships in BNNS-Modified PEEK Nanocomposites for High-Performance Applications
Abstract: This study reports the design and performance evaluation of boron nitride nanosheet (BNNS)-reinforced polyetheretherketone (PEEK) nanocomposites fabricated using melt compounding and high-temperature Fused Filament Fabrication (FFF). PEEK, a high-performance thermoplastic, was reinforced with BNNS at 0.5–5wt.% to enhance mechanical, thermal, and tribological functionalities for advanced engineering use. Composite filaments were extruded and printed using a modified Bambu Lab FFF printer. Mechanical testing revealed a peak tensile strength of 108 MPa …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 867–888 Read article
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Wear Characteristics of Aluminium-Graphite Composites Produced by Stir Casting Technique
Abstract: Metal matrix composites (MMCs) are finding more applications due to their significantly improved properties such as high specific strength, high specific modulus, good damping capacity and good wear resistance compared to unreinforced alloys. In recent years, there has been an increasing interest in composites containing low density and low cost reinforcements. Graphite is one of the most suitable and low density reinforcement available for making light-weight and wear resistant parts …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 3, 2014 · pp. 13–20 Read article
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Improved Cooling Effectiveness in Radiators and Heat Exchangers with Nanofluid-Based Technology
Abstract: This study discusses how the process of heat transfer in radiators and heat exchangers can be improved using nanofluids and analysis of computational fluid dynamics. These nanofluids comprise Al₂O₃ and ZnO dispersed in water-based ethylene glycol solutions, and graphene oxide dispersed in water-based solutions, and performance evaluation was done for the range of flow rates 180–420 l/h. And a 3D CAD model was created using the ANSYS Workbench. It was …
Published in Recent Trends in Fluid Mechanics · Vol. 12, Issue 1, 2025 · pp. 31–62 Read article
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Boron Nitride Unleashed: Revolutionary Insights into Its Superhard Phases and Machining Aptitude
Abstract: Exploration from the prehistoric era has proven steel to be a hard substance. According to research, the four main crystalline forms of boron nitride are graphitic, cubic, rhombohedral, and wurtzitic. Better hard materials for industrial processes have been provided by diamond, hard ceramic, and cermet in the process of developing the front of the script, which is descriptive. Turning, cutting, drilling, boring, and grinding of hard materials have been linked …
Published in Journal of Catalyst & Catalysis · Vol. 11, Issue 2, 2024 · pp. 17–24 Read article
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Effect of High-Shear Mixing on Alignment of Carbon Nanofiber/Epoxy Nanocomposites
Abstract: AbstractOne of the major technological issues limiting widespread use of epoxy polymer nanocomposites containing carbon nanofibers is processability, where the dispersion or alignment of the nanofibers is crucial to performance of the composite. Poor dispersion of the nanofibers can lead to deterioration in properties, while aligning them affords the opportunity to maximize properties in a given direction. The authors have recently investigated the effect of high-shear mixing as a potential …
Published in Journal of Polymer & Composites · Vol. 2, Issue 1, 2023 · pp. 9–18 Read article
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Effect of Ni Addition on the Hardness and Tensile Strength of Al – Cu Alloy Prepared by Powder Metallurgy Technique
Abstract: Aluminium alloys are becoming potential engineering materials offering excellent combination of properties such as high specific strength, high specific stiffness, electrical and thermal conductivities, low coefficient of thermal expansion and wear resistance. Generally, copper and nickel were used as alloying elements in aluminium alloy to increase high temperature strength.Both powder metallurgy as well as casting techniques is used to produce Al-Cu-Ni alloys.However, P/M technique is better suited for preparing this …
Published in Journal of Experimental & Applied Mechanics · Vol. 9, Issue 3, 2018 · pp. 19–23 Read article
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Experimental Investigations on Aluminium Composites Materials Using Stir Casting Process
Abstract: In physical operations, accoutrements in motorcars and aeronautical machine factors, aluminium and its alloys are extensively used. In this study an effort is made to ameliorate the properties of aluminium essence matrix compound (A356) for manufacturing of machine rudiments taking High Tensile strength, Hardness, Wear resistance and low coefficient of friction, aluminium alloy (A356) reinforced with aluminium oxide, graphite and silicon carbide. In the current work, A356 as base metal …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 302–323 Read article
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Investigating The Influence of Sic Reinforcement on The Mechanical and Tribological Properties of PA12 Polymer Composites in SLS
Abstract: The study investigates the mechanical and tribological performance of neat PA12 polymer and SiC-reinforced PA12 polymer composites made via Selective Laser Sintering (SLS). To evaluate just how reinforcement has influence upon overall performance, we incorporated into the PA12 polymer matrix a constant amount of 5 wt.% of Silicon Carbide (SiC). Mechanical testing focused on both tensile and fatigue behavior and testers conducted it with a Servo-Hydraulic Multipurpose High-Capacity Fatigue Test …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 541–554 Read article