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90 articles for “rate kinetics”
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The Effect of Dynamics and Mass Transfer Limitation on the Kinetic Growth Rate of Methane Gas Hydrates
Abstract: Hydrate management aims to prevent impediments to fluid flow in pipes caused by hydrate deposition. To achieve this goal effectively, a comprehensive understanding of the thermodynamics and kinetics of hydrate formation is essential for predicting their equilibrium conditions, quantifying the amount of deposition, and estimating the associated risk. Hydrate growth studies are a relatively new field, and independent laboratory experiments have shown that hydrate growth is controlled by heat transfer, …
Published in Journal of Petroleum Engineering & Technology · Vol. 16, Issue 1, 2026 · pp. 76–84 Read article
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Removal of CO2 using Aqueous Blends of Amines by Chemical Absorption Method: Modeling
Abstract: Carbon capture from point source emissions has been recognized as one of the several strategies necessary for mitigating unfettered release of greenhouse gases (GHG's) into the atmosphere to prevent global warming. To keep the GHG's at manageable level, large decrease of CO2 should take place through capture technologies like chemical absorption. Alkanolamines such as monoethanolamine (MEA), diethanolamine (DEA), and N-methyldiethanolamine (MDEA) have been used for gas treating at industries. There …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 5, Issue 1, 2014 · pp. 1–5 Read article
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Comparative Study of Biodegradation of Hydrocarbons in Soils under Nipa Palm (Nypa fruticans Wurmb) Treatment
Abstract: This study evaluated the potential of Nipa palm (Nypa fruticans) powder as an alternative amendment for remediation of crude oil polluted loamy and sandy soils. Further, the study investigated the bioremediation process using the first-order degradation rate and quadratic models. From the analysis, there were changes in the physicochemical properties of the soils under the Nipa palm powder amendment during the remediation. Also, TPH reduction in the amended soil samples …
Published in Research & Reviews : Journal of Ecology · Vol. 9, Issue 3, 2020 · pp. 20–32 Read article
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Effect of Draft Tube, its Height and Air Flow Rate on Growth Kinetics of Baker’s yeast in Bubble Column
Abstract: The significance of baker’s yeast to meet the demand of food in a world of low agricultural production and rapidly increasing population makes its production extremely important. Choosing a proper type of bioreactor is a key step in achieving maximum yield. In the present work, batch cultivation of Saccharomyces cerevisiae was carried out in Rectangular Bubble Column (RBC) and Rectangular Draft Tube Bubble Column (RDTBC) with different draft tube height …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 7, Issue 3, 2017 · pp. 28–32 Read article
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Kinetic Parameters of Corrosion Rate constant for Water-Based Plants for the Inhibition of Metal in Acidic Medium
Abstract: Kinetic parameters of metal inhibition in acidic medium in the presence of water-based plant extracts to monitor corrosion rate characteristics was investigated in this research. The two water-based plasts used are pnematopteris pennigera (GF) and selaginella myosurus (SM) and the mild steel was immersed into the extracts and 1.0M of hydrochloride acid was added to monitor the rate of metal sample corrosion of the analytical grade (raw) HCl (87.3mls) in …
Published in Emerging Trends in Chemical Engineering · Vol. 10, Issue 1, 2023 · pp. 21–35 Read article
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Kinetic Analysis of Structural Acrylic Curing by DSC: Polymerization and Phase Transition Optimization
Abstract: Differential Scanning Calorimetry (DSC) was used to analyse the thermal properties and curing behaviour of a structural acrylic adhesive at heating rates of 5, 10, and 15 °C/min. The study focused on the curing kinetics, glass transition temperature (Tg), specific rate (k), and activation energy (Ea) of the polymerization reaction. The material is tested according to ASTM 3418 standards. Results showed that increasing the heating rate shifted the endothermic curing …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 726–733 Read article
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Challenges in the Commercialization of Lithium (Li)–Sulphur (S) Batteries †
Abstract: Li-S batteries can be used in drones owing to their high gravimetric energy density (2600 Wh/kg of sulphur) as well as the high theoretical specific capacity values (1674 mAh/g) values. Most of the ground breaking inventions in energy sources occurred during war time (1st September 1939-2nd September 1945), including the discovery of the famous nuclear fission process that lead to the origin of the little boy and the fat man. …
Published in International Journal of Advance in Molecular Engineering · Vol. 1, Issue 2, 2023 · pp. 26–36 Read article
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Study on the Variations in Physicochemical Property Concentration in a Contaminated Fresh and Salt Water
Abstract: In this research, the dispersion of crude oil contaminated was subjected into laboratory observations and results were recorded. These results were used to develop and adopt mathematical models for a proper engineering experimental practice. 1.5m3 volumes of fresh water and salt water were filled in two tanks of equal fit at the same intervals along the tanks and depth, where samples were collected for the purpose of analysis of physicochemical …
Published in International Journal of Pollution: Prevention & Control · Vol. 1, Issue 2, 2023 · pp. 1–9 Read article
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Evaluation of the Effects of Total Suspended Solid and Total Hardness in Crude Oil Contaminated Water Environment
Abstract: The actions and effects of a few selected physiochemical traits present in a contaminated water environment were examined in this study attempt using experimental methods and mathematical expressions. Throughout the course of 84 days at 14-day intervals, six control valves were established at equal intervals down the depth of the tanks to collect samples for study of physicochemical characteristics, total bacterial counts (TBC), and total petroleum hydrocarbon (TPH) content. The …
Published in Journal of Petroleum Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 35–46 Read article
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Fluorescence of Compose to Justify Illumination Informatics
Abstract: This article has written from descriptive issues on fluorescence of compose to justify illuminationinformatics. Subjective has been modified from standards of bio-chemical stipulation, where respect has been typified patented by yes/no said, so forth, has lime lighted to adjunct prosecution of singlemolecule adaptation, which has been better sensing apt to rescue rich information than earlier.Progress of different spectroscopic techniques has advanced fluorescence to secure spectrofluorimetry to imply towards biochemistry, electronics …
Published in Journal of Nuclear Engineering & Technology · Vol. 11, Issue 1-2, 2021 · pp. 35–41 Read article
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Thermal degradation analysis of banana fiber by Coats & Redfern methodThermal Degradation Analysis of Banana Fiber by Coats and Redfern Method
Abstract: Nowadays, natural fiber is more advantageous than synthetic fiber. Natural fibers are used as reinforcement material with combination of polymer matrix. These are of different types like banana fiber, bamboo fiber, sisal, hemp, and jute, etc. Banana fiber is one of them which is most common and easily available fiber in global scenario. It is biodegradable, renewable, and lower in cost. This fiber is higher in cellulosic content. Out of …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 28–32 Read article
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Kinetics of Non-isothermal Crystallization of Ge-Se-Sn Chalcogenide Glasses
Abstract: AbstractThe calorimetric measurements of as-prepared Ge30-xSe70Snx (8≤x≤20) chalcogenide glasses have been performed using differential scanning calorimetery (DSC) at five different heating rates (10, 15, 20, 25 and 30 Kmin-1) under non-isothermal conditions. These non-isothermal calorimetric measurements have been analyzed in terms of activation energy (Ec), Avrami exponent, dimensionality of growth, frequency factor, Ko(sec-1), half time of crystallization,t1/2(min) and crystallization rate parameter. These kinetic parameters have been evaluated using different theoretical …
Published in Research & Reviews : Journal of Physics · Vol. 4, Issue 2, 2015 · pp. 25–34 Read article
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Experimental and Simulation Study on Reduction Kinetics of Magnetite Ore by using Hydrogen
Abstract: In the present work, magnetite ore fines pellets were prepared for a study of reduction kinetics using hydrogen gas. In the present work, various parameters are investigated to assess their influence on reduction kinetics with respect to hydrogen utilisation. The different input variables influence the process, yielding the reduction fraction. The effect of temperature on reduction kinetics with hydrogen flow rate was explored for the optimum value of these parameters. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 16, Issue 1, 2026 · pp. 71–81 Read article
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Microbial Competition in the Rumen: Insights into Fermentation Kinetics, Host Health, and Environmental Sustainability
Abstract: Microbial competition within the rumen is a crucial determinant of fermentation efficiency, nutrient utilization, and overall host health in ruminant animals. The complex microbial community in the rumen comprises bacteria, protozoa, fungi, and archaea, all of which interact in intricate and often competitive ways to degrade feed and produce essential metabolites. This competition significantly influences fermentation kinetics, determining the rate and efficiency of carbohydrate, protein, and fat breakdown. Such microbial …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 15, Issue 3, 2025 · pp. 27–42 Read article
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Ru(III)-Catalyzed Oxidative Cleavage of Ritodrine Hydrochloride: A Kinetic and Mechanistic Study
Abstract: A systematic kinetic and mechanistic study of the oxidation of ritodrine hydrochloride (RTH) with chloramine-T (CAT) in both HClO4 and NaOH media has been carried out at 303 K. In acid medium, the reaction rate is very sluggish to be measured kinetically. Ruthenium (III) chloride ([Ru(III)]) was found to be an efficient catalyst. The reaction rate exhibits a first-order dependence on [CAT]0 in both media. It shows a fractional-order on …
Published in Journal of Catalyst & Catalysis · Vol. 1, Issue 1, 2014 · pp. 29–40 Read article
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Kinetics of Soil Contaminant Degradation Enhanced by Jatropha Tanjorensis Leaf Bio-Stimulant
Abstract: The data obtained from the experiment show a high viability of the plant extracts in the biodegradation process, the maximum specific rate was determined. Also, application of Michael Menten’s equation were also applied, the maximum dissociation rate constant was obtained from lineweaver bulk plot, for both sun-dried and room dried at 100 g of CPED and CPEL as RMAX to be 1000 ppmday-1 and 555.55 ppmday-1 whereas KPTH 3190.16 ppm-1 …
Published in Journal of Catalyst & Catalysis · Vol. 11, Issue 1, 2024 · pp. 01–06 Read article
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Advent in Dynamic Recovery of Dislocation Cusps: Especially for Loosely Tangled Dislocations
Abstract: Steady state dynamic recovery Kinetics is defined to quantify dislocation density during macro and micro-scale ausforming. High-stress regime of ausforming is liable to follow the rate controlling dynamic recovery kinetics of thermal glide by rapid advancements of kinks. Crystallographic orientation, specific Taylor factor, is observed to increase the work-hardening induced dynamic recovery. Stacking fault energy, is found to be inversely proportional to. Distance covered by kinks, is expressed as dislocation …
Published in Journal of Aerospace Engineering & Technology · Vol. 12, Issue 2, 2022 · pp. 1–8 Read article
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A Mathematical Model for the Prediction of Microbial Decay and Kinetics
Abstract: The application of mathematical model for the prediction of kinetics of microbial decay was developed and simulated with variation in time. The result obtained demonstrates increase in the microbial decline in concentration revealing high depletion in substrate concentration as well as the available nutrient in the system. The functional parameters of the kinetic used in the monitoring, predicting and simulating the microbial characteristics in terms of decay rate is within …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 12, Issue 3, 2021 Read article
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Comparison of Different Models forthe Remediation of Crude Oil Contaminated Clay and Swampy Soil Environment
Abstract: This research was carried out to compare different mathematical models for the determination of best practice or method for remediation of crude oil contaminated clay and swampy soil environment. The results obtained were utilized to calculate the highest specific rates, the disassociation constant, and the kinetic values in terms of first- and second-order kinetics. The use of the Lineweaver Buck plot was taken into consideration for the different reactors, and …
Published in International Journal of Pollution: Prevention & Control · Vol. 1, Issue 1, 2023 · pp. 1–8 Read article
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Effect of Polymer Crosslinking on Drug Release Kinetics
Abstract: In order to improve treatment effectiveness and minimise adverse effects, polymer-based drug delivery systems are often used to produce regulated and sustained drug release. Polymer crosslinking, which alters the structural, mechanical, and degrading characteristics of the polymer matrix, is one of the key elements affecting drug release kinetics. The porosity, swelling behaviour, and rate of degradation of the polymer are all impacted by the crosslinking process, which may be accomplished …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 636–647 Read article