Relevant bibliographies by topics / Pseudo first order kinetic

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Pseudo first order kinetic'

Author: Grafiati
Published: 4 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Pseudo first order kinetic"

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Liu, Zu Lan, Lan Qian Li, Yi Ping Liu, and Ming Lu. "Kinetic Study of the Adsorption of Dye onto Cotton in SDS-CTAB Reverse Micelles." Applied Mechanics and Materials 723 (January 2015): 591–95. http://dx.doi.org/10.4028/www.scientific.net/amm.723.591.

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Adsorption kinetic study of C.I. reactive blue 19 onto cotton was carried out in SDS-CTAB reverse micelles. The data of adsorption kinetics were examined using pseudo first-and second-order kinetic models. It was found that the adsorption kinetics of dye on cotton with diffusion controlling follows the pseudo first-order kinetic model.
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Yao, Hui Min, Jun Yi Zhu, and Guang Qing Xia. "The Drug Loading Kinetics Mechanism of Ion Exchange Fiber as a Novel Kind of Drug Carrier Material." Advanced Materials Research 904 (March 2014): 54–58. http://dx.doi.org/10.4028/www.scientific.net/amr.904.54.

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The adsorption of Fenazoxine hydrochloride was investigated by performing batch kinetic sorption experiments. Experiments were carried out as function of contact time, initial concentration. Adsorption data were modeled using the pseudo-first-order and pseudo-second-order kinetics equations. It showed that the pseudo-second order kinetic equation can describe the adsorption kinetics best. The results indicate that ion-exchange fiber is suitable as drug carriers for loading drugs.
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Agarwal, Ajay Kumar. "A COMPARATIVE STUDY FOR CHOOSING THE BEST KINETIC MODEL USING DIFFERENT ERROR METRICS." Journal of Chemical Technology and Metallurgy 60, no. 3 (2025): 401–12. https://doi.org/10.59957/jctm.v60.i3.2025.4.

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In the present investigations, a comparison of fly ash and cow dung ash was carried out to study the adsorption kinetics of Nickel ions present in aqueous solution. Various kinetic models are evaluated during these investigations, which include pseudo-first-order, pseudo-second-order, intra-particle diffusion, fractional power, and Elovich models. These models were exhaustively evaluated and compared using eighteen different error functions. An overall performance indicator metric has also been discussed that helps in ranking the different kinetic models for estimation of adsorption capacity (
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Denesa, Erwhyanta Monorizho, Tammy Laysandra, Felycia Edi Soetaredjo, et al. "Binary Adsorption Kinetics of Tetracycline and Doxycycline on HKUST-1: Modification Pseudo First and Second Order Models." Engineering Chemistry 8 (December 13, 2024): 31–40. https://doi.org/10.4028/p-3vojww.

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The investigation of kinetics is crucial for optimizing the adsorption process, particularly in multicomponent systems where several adsorbates compete for active sites on the adsorbent particle. This study presents a novel approach to improve the pseudo-first-order and pseudo-second-order kinetic models by integrating a competition parameter. This parameter quantifies the influence of the adsorbate interaction on the adsorption process. Empirical data of binary adsorption involving doxycycline (DXC) and tetracycline (TTC) were used to validate the improved models. The results indicate that th
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Fouad, Mohamed R., Ahmed F. El-Aswad, and Maher I. Aly. "Mathematical models of the adsorption-desorption kinetics of fenitrothion in clay soil and sandy clay loam soil." Current Chemistry Letters 13, no. 4 (2024): 641–54. http://dx.doi.org/10.5267/j.ccl.2024.6.002.

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Batch adsorption and desorption kinetic experiments of fenitrothion on clay soil and sandy clay loam soil indicated that the equilibration time was approximately 30 hours. The kinetics of adsorption and desorption exhibited two distinct stages: a rapid process in the initial stages followed by a slow process. The pseudo-first-order model followed by the Elovich kinetic model fit the experimental adsorption and desorption data quite well, with high values of R2 and low values of ∆qe% and SSE. Accordingly, the pseudo-first-order model is most suitable for describing the adsorption and desorption
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Chen, Jian Qiu, Zhi Liang Wang, Guo Ping Li, Rui Xin Guo, and Yu Zhu Hu. "Kinetics and Equilibrium Study for Acetazolamide in Soils." Advanced Materials Research 781-784 (September 2013): 2296–300. http://dx.doi.org/10.4028/www.scientific.net/amr.781-784.2296.

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Sorption of Acetazolamide was found to be impacted by clay content and soil solution pH, with higher Kd values for soils with higher clay content and higher Kd values as the pH increased. Sorption data on soils were well fitted with Freundlich model (R2> 0.98). The kinetics of adsorption of Acetazolamide has been discussed using four kinetic models, i.e., the pseudo-first-order model, the pseudo-second-order model, the Elovich equation, the intraparticle diffusion model. The pseudo-first-order model and the pseudo-second-order model were both used to describe the kinetics data, and the pseu
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Eze, Kenneth Afamefuna, A. O. Eze, and J. C. Iyidobi. "SORPTION AND DESORPTION KINETICS OF CADMIUM IMMOBILIZATION IN LATERITE SOIL USING ANIMAL BONES." FUDMA JOURNAL OF SCIENCES 9, no. 2 (2025): 49–55. https://doi.org/10.33003/fjs-2025-0902-3103.

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The sorption and desorption kinetics of cadmium immobilization in laterite soil using animal bones were investigated by subjecting the experimental data to various kinetic models. Sorption kinetic was studied with Pseudo first order, pseudo second order and parabolic diffusion while desorption kinetics was investigated with first order, Second order, and Simple Elovich Models. These models were chosen for their significance to understanding and optimizing the kinetics of immobilization processes, since they provide insights into the mechanisms driving sorption and desorption, allowing for the
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Muniroh, Syarifatul, and Maya Rahmayanti. "KINETIKA ADSORPSI KROMIUM(VI) YANG TERKANDUNG DALAM LIMBAH BATIK PADA ASAM HUMAT TERMODIFIKASI MAGNETIT (AH-Fe3O4)." Integrated Lab Journal 7, no. 2 (2019): 42–46. https://doi.org/10.5281/zenodo.3524030.

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Chromium(VI) is a hazardous metal which usually exist in wastewater from batik textile industry. This research aim to study the adsorption kinetic of Cr(VI) using humic acid coated on magnetite (HA-Fe3O4). Adsorption kinetic has studied using kinetic models of first order, second order, pseudo first order, and pseudo second order reaction in pH 7 and 10. Result shows that the adsorption kinetic of Cr(VI) by HA-Fe3O4 followed pseudo second order kinetic in pH 7 and 10.
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Alias, A. B., D. Qarizada, A. Y. b. Ariffin, N. M. R. Noraini, and Z. A. Rashid. "Kinetics models of hydrogen sulphide adsorption from hydrogel biochar derived from empty fruit bunch (EFB)." Archives of Materials Science and Engineering 120, no. 1 (2023): 15–21. http://dx.doi.org/10.5604/01.3001.0053.5981.

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This research aims to investigate the detailed state of adsorption kinetics modelling and research on the application of hydrogen sulfide adsorption by hydrogel derived from empty fruit bunch (EFB), the determination of the kinetics parameters, and the comparison between models in a selection of the best-fit model.The kinetics modelling used are pseudo-first-order and pseudo-second-order models. The correlation coefficient was used to evaluate the suitability of the equation R2. After obtaining the results, the comparison was made by comparing the R2 of each model. The pseudo-second-order mode
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L Salami, DO Olumuyiwa, EA Alfred, and OS Olakanmi. "Kinetic modelling of dumpsite leachate treatment using Musa sapientum peels as bio-sorbent." Global Journal of Engineering and Technology Advances 9, no. 2 (2021): 024–31. http://dx.doi.org/10.30574/gjeta.2021.9.2.0117.

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Kinetics models are very vital to dumpsite operators and planners as they provide relevant information for effective treatment of leachates. The aim of this work is to model the kinetic process of treatment of Lagos dumpsite leachate using Musa sapientum peels as bio-sorbent with a view of establishing the kinetic parameters of the treatment process. Musa sapientum peels which were collected from Ayetoro market in Epe Local Government area of Lagos State were used to prepare the bio-sorbent. Kinetic process was carried out using 1 g of the prepared bio-sorbent in 100 ml Lagos dumpsite leachate
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Dissertations / Theses on the topic "Pseudo first order kinetic"

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He, Ruo. "MEMBRANE IMMOBILIZED REACTIVE Fe/Pd NANOPARTICLES: MODELING AND TCE DEGRADATION RESULTS." UKnowledge, 2012. http://uknowledge.uky.edu/cme_etds/14.

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Detoxification of chlorinated organic compound is an important and urgent issue in water remediation nowadays. Trichloroethylene (TCE), as a model compound in this study, has been proved to be degraded effectively by bimetallic nanoparticles (NPs) in solution phase. In this study, Fe/Pd bimetallic NPs were synthesized in poly (acrylic acid) (PAA) functionalized polyvinylidene fluoride (PVDF) microfiltration membranes. TCE dechlorination with these bimetallic NPs was conducted under different pH values and different metal loadings to study the role of corrosion on reaction rates. One-dimensiona
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Yalala, Bongani Ndhlovu. "Ion exchange resins an functional fibres :a comparative study for the treatment of brine waste water." Thesis, University of the Western Cape, 2009. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_8342_1298358875.

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<p>To improve the adsorption capacity of polyacrylonitrile (PAN) fibres, hydrophilic amidoxime fibres were prepared by subsequent conversion of the cyano groups to an amidoxime group by reacting with hydroxylamine at 80&deg<br>C at an optimum amidoximation time of 2 hrs. The amidoxime fibre was hydrolyzed/alkali treated in a solution of sodium hydroxide to enhance or improve the adsorption properties. This was followed by characterization of the amidoxime and hydrolyzed fibres using Scanning electron microscopy (SEM)<br>Fourier transform Infrared Spectroscopy (FTIR) and exchange capacity (cati
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Thekkudan, Dennis. "Multidimensional Methods: Applications in Drug-Enzyme Intrinsic Clearance Determination and Comprehensive Two-Dimensional Liquid Chromatography Peak Volume Determination." VCU Scholars Compass, 2009. http://scholarscompass.vcu.edu/etd/2005.

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The goal of the first project was to evaluate strategies for determining the in vitro intrinsic clearance (CLint) of dextrorphan (DR) as metabolized by the UGT2B7 enzyme to obtain dextrorphan glucuronide (DR-G). A direct injection liquid chromatography-mass spectrometry (LC-MS) method was used to monitor products using the pseudo-first-order (PFO) model. Standard enzymatic incubations were also quantified using LC-MS. These data were fit utilizing both PFO and Michaelis-Menten (MM) models to determine estimates of kinetic parameters. The CLint was determined to be 0.28 (± 0.08) µL/min/mg p
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Sursaeva, V. G. "Kinetic Properties of the First Order Ridges in Zn." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35136.

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The migration of a grain boundary system with ridges of the first order is studied. A theory of steadystate motion of a grain boundary (GB) half-loop with facets and ridges is presented. The shape and properties of a moving grain boundary which contains additional structural elements (curved segments, facets and ridges of first order) are addressed. The major kinetic parameters (mobility and its activation enthalpy) of the “high-temperature” and “low-temperature” grain boundary ridge of first order with curved segments were measured. When you are citing the document, use the following lin
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Ackah, Louis Akainya. "Comparative study of complete- mix and plug flow first-order kinetic models of constructed wetlands." OpenSIUC, 2013. https://opensiuc.lib.siu.edu/theses/1073.

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Constructed Wetlands are used in many parts of the world for the treatment of wastewater from diverse sources. They are effective, low cost and sustainable alternative to most conventional wastewater treatment processes. They are engineered to mimic many of the same processes that occur in natural wetlands but within a more controlled environment. The need for proper design of constructed wetlands for secondary and tertiary wastewater treatment is of utmost importance in meeting today's stringent water quality standards. Subsequently, numerous design tools have been proposed for the assessment
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Klee, Ulysses. "Evaluation of a body-residue-based one-compartment first-order kinetic model for estimating the toxicity of mixtures of chlorinated organic contaminants to rainbow trout, Oncorhynchus mykiss." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0012/NQ30618.pdf.

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Berhane, Tedros Mesfin. "KINETIC AND EQUILIBRIUM SORPTION EXPERIMENTS INVESTIGATING PALYGORSKITE-MONTMORILLONITE AS A POTENTIAL FILTER MEDIUM FOR REMOVAL OF PHARMACEUTICALS AND ENDOCRINE-DISRUPTING COMPOUNDS." Miami University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=miami1429882830.

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Desalegn, Nebiyou. "Kinetic Studies Of The Thermolysis Of 3-Halogenated-4,5-Dihydro-3h-Pyrazoles." Digital Archive @ GSU, 2005. http://digitalarchive.gsu.edu/chemistry_theses/1.

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3-Chloro-4,4,5-trimethyl-3,5-diphenyl-4,5-dihydro-3H-pyrazole (3b) and 3-bromo-4,4,5-trimethyl-3,5-diphenyl-4,5-dihydro-3H-pyrazole (3c) were prepared for the thermolysis project. The thermal decompositions of 3b and 3c were monitored using 1H NMR spectroscopy. Plots of ln (% starting material) vs. time (sec) were linear for at least two half lives and the first order rate constants were determined over at least a 30o temperature range. The relative reactivity was found to be 3c > 3b. The activation parameters determined for the thermal decomposition of the pyrazoline at 150oC were found to be
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Maafi, Wassila. "Modelling and elucidation of photoreaction kinetics : applications and actinometry using nifedipine, nisoldipine, montelukast, fluvoxamine and riboflavin." Thesis, De Montfort University, 2016. http://hdl.handle.net/2086/13110.

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The kinetics of drugs photodegradation have traditionally been treated using thermal kinetic analysis methods consisting most commonly in zero and first order kinetics. These treatment strategies were shown to lack specificity and present a number of limitations when applied to photoreactions kinetics. Nevertheless, these methods have widely been used due to a lack of integrated rate-laws for the majority of photoreactions types, in turn, due to the presence of a variable time-dependent factor in most photoreactions rate-laws that prevents their mathematical integration. To address these limit
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Tshabalala, Oupa Samuel. "The development of FT-Raman techniques to quantify the hydrolysis of Cobalt (III) nitrophenylphosphate complexes using multivariate data analysis." Diss., 2007. http://hdl.handle.net/10500/23202.

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The FT-Raman techniques were developed to quantify reactions that follow on mixing aqueous solutions of bis-(1,3-diaminopropane)diaquacobalt( III) ion ([Co(tn)2(0H)(H20)]2+) and p-nitrophenylphosphate (PNPP). For the development and validation of the kinetic modelling technique, the well-studied inversion of sucrose was utilized. Rate constants and concentrations could be estimated using calibration solutions and modelling methods. It was found that the results obtained are comparable to literature values. Hence this technique could be further used for the [Co(tn)2(0H)(H20)]2+ assiste
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Books on the topic "Pseudo first order kinetic"

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Deruelle, Nathalie, and Jean-Philippe Uzan. Kinetic theory. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198786399.003.0010.

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This chapter covers the equations governing the evolution of particle distribution and relates the macroscopic thermodynamical quantities to the distribution function. The motion of N particles is governed by 6N equations of motion of first order in time, written in either Hamiltonian form or in terms of Poisson brackets. Thus, as this chapter shows, as the number of particles grows it becomes necessary to resort to a statistical description. The chapter first introduces the Liouville equation, which states the conservation of the probability density, before turning to the Boltzmann–Vlasov equ
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Morawetz, Klaus. Quantum Kinetic Equations. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198797241.003.0009.

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The gradient approximations of the Kadanoff and Baym equations are derived up to first order. The off-shell motions responsible for the satellites are shown to ensure causality. The cancellation of off-shell motions from the drift and correlation part of the reduced density provides a precursor of the kinetic equation for the quasiparticle distribution which leads to a functional between reduced and quasiparticle distribution, named the extended quasiparticle picture. Virial corrections appear as internal gradients in the selfenergy and therefore in the considered processes. With this extended
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Scully, Jason. The Greek Sources for Isaac of Nineveh’s Development of Wonder and Astonishment. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198803584.003.0005.

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This chapter shows that Isaac derives specific definitions for the ecstatic experience of wonder and astonishment from Syriac translations of two sources that were originally written in Greek: Pseudo-Dionysius’s Mystical Theology and a series of Evagrian texts. The first section of this chapter concludes that Isaac uses language from the first chapter of Pseudo-Dionysius’s Mystical Theology in order to establish a connection between language of light and darkness and the theme of the Shekinah, on the one hand, and wonder and astonishment on the other. The second section shows that Isaac explic
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Nail, Thomas. Marx in Motion. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780197526477.001.0001.

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Socialism is back, and with it comes a renewed interest in Marx’s critique of capitalism. After the 2008 financial crash, international book sales of Capital exploded for the first time in decades. In a world of rising income inequality, right-wing nationalisms, and global climate change, people are looking to the father of modern socialism for answers. This book has been written to help those returning to Marx get answers to their pressing questions about the nature of wealth, ecological crisis, gender inequality, colonialism, migration, and the possibility of socialism. This book also offers
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Parker, Joanne, and Corinna Wagner, eds. The Oxford Handbook of Victorian Medievalism. Oxford University Press, 2020. http://dx.doi.org/10.1093/oxfordhb/9780199669509.001.0001.

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Victorian medievalism physically transformed the streets of Britain. It lay at the root of new laws and social policies. It changed religious practices. It deeply coloured national identities. And it inspired art, literature, and music that remains influential to this day. Sometimes driven by nostalgia, but also often progressive and future-facing, this wide-reaching movement, which reached its peak during the reign of Queen Victoria, looked back to a range of different peoples and historical periods spanning a thousand years, in order to inspire and vindicate cultural, political and social ch
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Садовников, Василий. Теория гетерогенного катализа. Теория хемосорбции. Publishing House Triumph, 2021. http://dx.doi.org/10.32986/978-5-40-10-01-2001.

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This monograph is a continuation of the monograph by V.V. Sadovnikov. Lateral interaction. Moscow 2006. Publishing house "Anta-Eco", 2006. ISBN 5-9730-0017-6. In this work, the foundations of the theory of heterogeneous catalysis and the theory of chemisorption are more easily formulated. The book consists of two parts, closely related to each other. These are the theoretical foundations of heterogeneous catalysis and chemisorption. In the theory of heterogeneous catalysis, an experiment is described in detail, which must be carried out in order to isolate the stages of a catalytic reaction, t
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Book chapters on the topic "Pseudo first order kinetic"

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Jensen, Kristine Steen. "Measuring and Analyzing Binding Kinetics of Coupled Folding and Binding Reactions Under Pseudo-First-Order Conditions." In Methods in Molecular Biology. Springer US, 2020. http://dx.doi.org/10.1007/978-1-0716-0524-0_32.

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Limet, Sébastien, and Pierre Pillot. "Solving First Order Formulae of Pseudo-Regular Theory." In Theoretical Aspects of Computing – ICTAC 2005. Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11560647_7.

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Levajković, Tijana, and Dora Seleši. "Nonhomogeneous First-order Linear Malliavin Type Differential Equation." In Pseudo-Differential Operators, Generalized Functions and Asymptotics. Springer Basel, 2013. http://dx.doi.org/10.1007/978-3-0348-0585-8_20.

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Kmit, I. "Smoothing Effect and Fredholm Property for First-order Hyperbolic PDEs." In Pseudo-Differential Operators, Generalized Functions and Asymptotics. Springer Basel, 2013. http://dx.doi.org/10.1007/978-3-0348-0585-8_11.

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Hanel, Clemens, Günther Hörmann, Christian Spreitzer, and Roland Steinbauer. "Wave Equations and Symmetric First-order Systems in Case of Low Regularity." In Pseudo-Differential Operators, Generalized Functions and Asymptotics. Springer Basel, 2013. http://dx.doi.org/10.1007/978-3-0348-0585-8_15.

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Frouvelle, Amic. "Body-Attitude Alignment: First Order Phase Transition, Link with Rodlike Polymers Through Quaternions, and Stability." In Recent Advances in Kinetic Equations and Applications. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-82946-9_7.

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West, Jeffrey A., and Michael J. Aziz. "Kinetic Disordering of Intermetallic Compounds Through First- and Second-Order Transitions by Rapid Solidification." In Ordering and Disordering in Alloys. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2886-5_3.

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Russo, Camilla, and Giulio Vaccaro. "L’Urbano. Origine e fortuna di una novella pseudo-boccaccesca." In Intorno a Boccaccio / Boccaccio e dintorni 2019. Firenze University Press, 2020. http://dx.doi.org/10.36253/978-88-5518-236-2.11.

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The paper pursues an investigation on an apocryphal text still underinvestigated by scholars: the Urbano, falsely attributed to Boccaccio. The first part focuses on its fortune in the Boccaccio’s canon, from the first edition of the Vocabolario della Crusca to the Boccaccio’s complete works edited in the Ottocento; furthermore, are pointed out its connections with the Libellus de Constantino Magno eiusque matre Helena, the main source of the plot, and with other genealogical medieval tales, such as the Libro imperiale and the Manfredo. The second part focuses on the manuscript tradition of the
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Tatsumoto, Takuya, Yutaro Takaya, Yuki Tsunazawa, Taketoshi Koita, Keishi Oyama, and Chiharu Tokoro. "Evaluation of the Effect of Impact Energy on Liberation of Electronic Scrap by Correlation Analysis of the First-Order Kinetic Equation." In Proceedings of the 63rd Conference of Metallurgists, COM 2024. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-67398-6_138.

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Barfusz, Oliver, Felix Hötte, Stefanie Reese, and Matthias Haupt. "Pseudo-transient 3D Conjugate Heat Transfer Simulation and Lifetime Prediction of a Rocket Combustion Chamber." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53847-7_17.

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Abstract Rocket engine nozzle structures typically fail after a few engine cycles due to the extreme thermomechanical loading near the nozzle throat. In order to obtain an accurate lifetime prediction and to increase the lifetime, a detailed understanding of the thermomechanical behavior and the acting loads is indispensable. The first part is devoted to a thermally coupled simulation (conjugate heat transfer) of a fatigue experiment. The simulation contains a thermal FEM model of the fatigue specimen structure, RANS simulations of nine cooling channel flows and a Flamelet-based RANS simulatio
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Conference papers on the topic "Pseudo first order kinetic"

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Avilez, Leonardo A. C., Antonio E. Bresciani, Claudio A. O. Nascimento, and Rita M. B. Alves. "High-pressure Membrane Reactor for Ammonia Decomposition: Modeling, Simulation and Scale-up using a Python-Aspen Custom Modeler Interface." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.139572.

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One of the current challenges for hydrogen-related technologies is its storage and transportation. The low volumetric density and low boiling point require high-pressure and low-temperature conditions for effective transport and storage. A potential solution to these challenges involves storing hydrogen in chemical compounds that can be easily transported and stored, with hydrogen being released through decomposition processes. Ammonia stands out as a promising hydrogen carrier due to its high hydrogen content (17.8% by weight), relatively mild liquefaction conditions (~10 bar at 25�C), and th
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Kirboga, Semra, and Mualla Öner. "Removal of Cu(II) from Aqueous Solution with Precipitated Calcium Carbonate." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07445.

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Abstract Calcium carbonate (CaCO3) was synthesized in the presence of the water-soluble biopolymer carboxymethyl inulin (CMI) by a precipitation method. The obtained CaCO3 crystals were characterized by X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). The results showed that the polymorph of the synthesized calcium carbonate crystals changed from pure calcite to the mixture of vaterite and calcite in the presence of biopolymer at a concentration of 0.5 g/L. The sorption behavior of Cu(II) on synthesized calcium carbonate crystals was investigated. The results showed that Cu(II)
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Obid,, Tursunmuratov, and Bekchanov Davronbek. "VERMIKULIT ASOSIDA OLINGAN IONITGA MIS (II) KATIONLARINING YUTILISH KINETIKASINING TAHLILI." In GOALS OF SUSTAINABLE DEVELOPMENT IN THE INTEGRATION OF SCIENCE AND EDUCATION. International Scientific and Current Research Conferences, 2023. http://dx.doi.org/10.37547/goal-10.

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This article presents the results of studying the sorption of copper(II) ions in artificial solutions to the new vermiculite-based ionite at temperatures of 293, 303 and 313 K, the duration of sorption up to the equilibrium state (24 hours) and at different concentrations. Kinetic models of processes (pseudo first and second) were studied. The research shows that the adsorption of Cu(II) ions on vermiculite-based ionite is quenched according to the pseudo-first-order kinetic model, and the correlation coefficient of the pseudo-first-order kinetic model is correspondingly Cu2+ (R2=0.788-0.936),
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Seniūnaitė, Jurgita, Rasa Vaiškūnaitė, and Kristina Bazienė. "Mathematical Modelling for Copper and Lead Adsorption on Coffee Grounds." In Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.007.

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Research studies on the adsorption kinetics are conducted in order to determine the absorption time of heavy metals on coffee grounds from liquid. The models of adsorption kinetics and adsorption diffusion are based on mathe-matical models (Cho et al. 2005). The adsorption kinetics can provide information on the mechanisms occurring be-tween adsorbates and adsorbents and give an understanding of the adsorption process. In the mathematical modelling of processes, Lagergren’s pseudo-first- and pseudo-second-order kinetics and the intra-particle diffusion models are usually applied. The mathemati
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OUALLAL, Hassan. "Insight on the Natural Moroccan Clay Valorization for Malachite Green Adsorption: Kinetic and Isotherm Studies." In Mediterranean Architectural Heritage. Materials Research Forum LLC, 2024. http://dx.doi.org/10.21741/9781644903117-29.

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Abstract. This work investigates the potential of Natural Moroccan Clay (NMC) sourced from the Draa-Tafilalet region for removing malachite green from aqueous media through adsorption. X-ray diffraction (XRD) and scanning electron microscopy combined with energy-dispersive X-ray microanalysis (SEM/EDX) were used to characterize the clay. Malachite green (MG) was subjected to batch adsorption experiments, and a kinetic study was carried out at three concentrations (5, 50, and 100 mg/L). The results showed that adsorption is typically fast for all three concentrations and that the adsorbed amoun
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Alsaba, Wisam Hussam, Raafat Alenany, and Mohammed Zamzam. "Using Synthetic Resins for Removal of Emulsified Oil from Produced Water." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0103.

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In this study, adsorption of emulsified oil in produced water was experimented using synthetic resins. Adsorbent dosage, contact time, initial oil concentration, and PH were the main key parameters evaluated for Optipore L493, Amberlite IRA 958, Amberlite XAD 7 and Lewatit AF 5. Oil removal rates have reached up to 98% using AF 5, XAD 7 and L493, while they are lesser than 25% for IRA 958. Isotherm data were fitted using Langmuir, Freundlich, Toth, Flory Huggins and Dubinin-Radushkevich models. Adsorption isotherms for XAD 7 and L 493 were best fitted using Langmuir model, whereas AF 5 curves
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Bares, S. J., and R. B. Hall. "Time Resolved Kinetic Studies of Molecular Decomposition on Ni(100) using Laser Induced Desorption." In Microphysics of Surfaces, Beams, and Adsorbates. Optica Publishing Group, 1985. http://dx.doi.org/10.1364/msba.1985.tub2.

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Laser induced desorption (LID) of surface bound species is rapidly developing into an important technique for studying the dynamics of the adsorbate-substrate bond. We report here the first application of this new technique to time resolved studies of reaction kinetics on a clean metal surface. In particular, measurements of decomposition rates of methanol to form the methoxy intermediate and hydrogen are described. Surprisingly, the decomposition curves cannot be interpreted assuming a simple first order rate expression; rather, a pseudo-second order rate law is invoked to explain the data. A
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Buthpitiya, B. L. S. K., and Yohan L. N. Mathota Arachchige. "Analysis of Efficiency and The Adsorption Nature of Malachite Green Dye from an Aqueous Solution on activated Carbon Generated from Strychnos potatorum (Ingini) seeds." In 3rd SLIIT International Conference on Engineering and Technology. SLIIT, 2024. http://dx.doi.org/10.54389/foxb3223.

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Malachite green (MG) is a basic dye with an amino group which is water soluble. This is a higher brilliance dye even in low concentrations. Therefore, MG is used mainly in dyeing for wool, leather, cotton, paper, wood, jute and as an anti-bacterial, anti-fungal, and anti-parasitical agent in aquaculture. The releasing of wastewater with MG from various industries is a huge problem because of the existence of MG in the wastewater causes toxicity for aquatic lives and it enters into the trophic levels of the food chains and causes teratogenic, mutagenic, carcinogenic and tumor-enhancing effects
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Rahman, Saad ur, Shaine Mohammadali Lalji, Syed Imran Ali, et al. "Enhancing Carbon Capture: Analyzing Kinetic Models for CO2 Adsorption on Amine Silica Sorbent—Statistical Insight." In SPE International Health, Safety, Environment and Sustainability Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/220509-ms.

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Abstract Carbon capture and storage is an effective way of preventing the greenhouse gases emission and alleviate the effect of global warming. The capturing effect can be performed with the help of adsorption processes, which overcomes the limitations associated with absorption process. During this study, CO2 adsorption on amine functional silica sorbent experimental data was gathered. This data was collect at five different temperatures ranging from 313-393 K and at various CO2 concentration. The main objective of this study is to investigate the performance of different kinetic model in val
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Heneghan, Shawn P., Charles R. Martel, Ted F. Williams, and Dilip R. Ballal. "Effects of Oxygen and Additives on the Thermal Stability of Jet Fuels." In ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/93-gt-130.

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A previously developed flowing single-pass heat-exchanger test rig (Phoenix rig) has been used to evaluate the effectiveness of various additives and the kinetic mechanism of both deposit formation and oxygen consumption. The Phoenix rig has been modified to include not just a heated single tube, but also a cooling test section and both hot and cold filters. The effects of flow conditions, antioxidants, and metal deactivator additives on the location and amount of the deposit are discussed. In general, antioxidants were effective at reducing the deposits on the hot test section, but almost inv
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Reports on the topic "Pseudo first order kinetic"

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Yang, Yu, Hen-Geul Yeh, and Bryan Aguirre. Fuel Cell System Development for Heavy Duty Vehicles. Mineta Transportation Institute, 2025. https://doi.org/10.31979/mti.2025.2441.

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As California advances its ambitious goals for transportation electrification to combat climate change, hydrogen-powered fuel cells are emerging as a viable solution for overcoming the challenges of heavy-duty vehicles, offering an efficient alternative to lithium-ion batteries because they produce minimal chemical, thermal, and carbon emissions. One type of hydrogen fuel cell technology called proton exchange membrane fuel cells (PEMFCs) has garnered the most attention due to its distinct advantages, including relatively low operating temperatures (60–80 °C) and reliable performance at high c
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Asenath-Smith, Emily, Emma Ambrogi, Eftihia Barnes, and Jonathon Brame. CuO enhances the photocatalytic activity of Fe₂O₃ through synergistic reactive oxygen species interactions. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42131.

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Iron oxide (α-Fe₂O₃, hematite) colloids were synthesized under hydrothermal conditions and investigated as catalysts for the photodegradation of an organic dye under broad-spectrum illumination. To enhance photocatalytic performance, Fe₂O₃ was combined with other transition-metal oxide (TMO) colloids (e.g., CuO and ZnO), which are sensitive to different regions of the solar spectrum (far visible and ultraviolet, respectively), using a ternary blending approach for compositional mixtures. For a variety of ZnO/Fe₂O₃/CuO mole ratios, the pseudo-first-order rate constant for methyl orange degradat
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