Relevant bibliographies by topics / Second order rate constant

Contents

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

Academic literature on the topic 'Second order rate constant'

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

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Journal articles on the topic "Second order rate constant"

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Paventi, Martino. "Particular solution for any consecutive second-order reaction." Canadian Journal of Chemistry 65, no. 8 (1987): 1987–94. http://dx.doi.org/10.1139/v87-329.

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Arguments are presented against the accepted notion that multiple rate constants may be obtained from observed singular or pooled kinetic runs. For any competitive consecutive second-order reaction, the particular solution satisfying the total differential equation, derived from (n + 1) simultaneous differential equations, is S = (aA0 − S0){(aA0/S0)[exp (aA0 − S0)kt] − 1}−1, where S is the concentration of reactant common for all the steps, A is the concentration of the substrate with a reactive sites, A0 and S0 are the concentration of reactants at zero time, k is the observed rate constant,
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Rigas, Fotis P. "Derivation of rate constant ratios for consecutive second‐order irreversible reactions." International Journal of Chemical Kinetics 53, no. 1 (2020): 7–15. http://dx.doi.org/10.1002/kin.21418.

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Liochev, Stefan I., and Irwin Fridovich. "Second order rate constants: a cautionary note." Free Radical Biology and Medicine 35, no. 7 (2003): 833. http://dx.doi.org/10.1016/s0891-5849(03)00393-9.

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H., C. MALHOTRA, and S. JASSAL P. "Kinetics of Acid-cataiysed Resorcinol-Formaldehyde Reaction." Journal of Indian Chemical Society Vol. 62, Sep 1985 (1985): 657–61. https://doi.org/10.5281/zenodo.6322157.

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Department of Chemistry, University of Delhi, Delhi-110 007 <em>Manuscript received 12 July 1984, revised 22 April 1985, accepted 11 September 1985</em> A kinetic study of the reaction of resorcinol with formaldehyde has been carried out at temperatures 65, 70, 75 and 80&deg; using hydrochloric acid as catalyst. The <em>p</em>H was maintained at 2.15, 2.38, 2.75 and 3.20. The rate is found to increase with the decrease in <em>p</em>H of the reaction. The reaction follows an overall second order rate kinetics. The overall rate constant has been resolved Into the <em>step </em>rate constants. Th
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Ho, Y. S., and G. McKay. "Kinetic Model for Lead(II) Sorption on to Peat." Adsorption Science & Technology 16, no. 4 (1998): 243–55. http://dx.doi.org/10.1177/026361749801600401.

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The kinetics of lead sorption on to peat have been investigated. The batch sorption model, based on the assumption of a pseudo-second order mechanism, has been developed to predict the rate constant of sorption, the equilibrium capacity and initial sorption rate with the effect of initial lead(II) concentration, peat particle size and temperature. An equilibrium capacity of sorption has been evaluated with the pseudo-second order rate equation. In addition, an activation energy of sorption has also been determined based on the pseudo-second order rate constants.
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Wigfield, Donald C., and Douglas M. Goltz. "Kinetics of reconstitution of apotyrosinase by copper." Biochemistry and Cell Biology 68, no. 2 (1990): 476–79. http://dx.doi.org/10.1139/o90-067.

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The kinetics of the reconstitution reaction of apotyrosinase with copper (II) ions are reported. The reaction is pseudo first order with respect to apoenzyme and the values of these pseudo first order rate constants are reported as a function of copper (II) concentration. Two copper ions bind to apoenzyme, and if the second one is rate limiting, the kinetically relevant copper concentration is the copper originally added minus the amount used in binding the first copper ion to enzyme. This modified copper concentration is linearly related to the magnitude of the pseudo first order rate constan
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ITO, Kazuhide. "ESTIMATION OF SECOND ORDER RATE CONSTANT OF OZONE-LIMONENE REACTION AND SOA GENERATION." Journal of Environmental Engineering (Transactions of AIJ) 72, no. 622 (2007): 57–64. http://dx.doi.org/10.3130/aije.72.57_5.

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Scarlett, Jonathan, Alfonso Martinez, and Albert Guillen i Fabregas. "Second-Order Rate Region of Constant-Composition Codes for the Multiple-Access Channel." IEEE Transactions on Information Theory 61, no. 1 (2015): 157–72. http://dx.doi.org/10.1109/tit.2014.2371026.

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Bunton, Clifford A., and Angela Cuenca. "Micellar effects upon reactions of the 2,2′,4,4′,4″-pentamethoxytrityl cation with nucleophiles." Canadian Journal of Chemistry 64, no. 6 (1986): 1179–83. http://dx.doi.org/10.1139/v86-195.

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Cationic micelles of cetyltrimethylammonium chloride and bromide (CTACl and CTABr) speed attack of water upon the 2,2′,4,4′,4″-pentamethoxytrityl cation by a factor of ca. 5. The first-order rate constant in water is 5.51 s−1 at 25.0 °C. Anionic micelles of sodium dodecyl sulfate (SDS) have little effect on this reaction, but they strongly inhibit attack of OH−. In water, second-order rate constants for attack of OH−, CN−, and N3− are, respectively, 235, 177, and 2.8 × 105 M−1 s−1. Rate constants of reaction in CTACl go through maxima with increasing [surfactant] and analysis of the data shows
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Meng, Hu, Jiang-Yuan Li, and Yong-Huai Tang. "Virtual Instrument for Determining Rate Constant of Second-Order Reaction bypXBased on LabVIEW 8.0." Journal of Automated Methods and Management in Chemistry 2009 (2009): 1–7. http://dx.doi.org/10.1155/2009/849704.

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The virtual instrument system based on LabVIEW 8.0 for ion analyzer which can measure and analyze ion concentrations in solution is developed and comprises homemade conditioning circuit, data acquiring board, and computer. It can calibrate slope, temperature, and positioning automatically. When applied to determine the reaction rate constant bypX, it achieved live acquiring, real-time displaying, automatical processing of testing data, generating the report of results; and other functions. This method simplifies the experimental operation greatly, avoids complicated procedures of manual proces
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Dissertations / Theses on the topic "Second order rate constant"

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Kazana, Wojciech. "l'évaluation de requêtes avec un délai constant." Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2013. http://tel.archives-ouvertes.fr/tel-00908434.

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Cette thèse se concentre autour du problème de l'évaluation des requêtes. Étant donné une requête q et une base de données D, l'objectif est de calculer l'ensemble q(D) des nuplets résultant de l'évaluation de q sur D. Toutefois, l'ensemble q(D) peut être plus grand que la base de données elle-même car elle peut avoir une taille de la forme n^l où n est la taille de la base de données et l est l'arité de la requête. Calculer entièrement q(D) peut donc nécessiter plus que les ressources disponibles. L'objectif principal de cette thèse est une solution particulière à ce problème: une énumération
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Sulemana, Hisham. "Comparison of mortality rate forecasting using the Second Order Lee–Carter method with different mortality models." Thesis, Mälardalens högskola, Akademin för utbildning, kultur och kommunikation, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-43563.

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Mortality information is very important for national planning and health of a country. Mortality rate forecasting is a basic contribution for the projection of financial improvement of pension plans, well-being and social strategy planning. In the first part of the thesis, we fit the selected mortality rate models, namely the Power-exponential function based model, the ModifiedPerks model and the Heligman and Pollard (HP4) model to the data obtained from the HumanMortality Database [22] for the male population ages 1–70 of the USA, Japan and Australia. We observe that the Heligman and Pollard
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Gibson, Sara Nichols. "Oxidation of pharmaceuticals and personal products by permanganate." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33870.

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Pharmaceuticals and personal care products (PPCPs) are widely used, resulting in trace amounts being detected in the aquatic environment. This presence is of human health and ecological concern and it is necessary to determine the best methods to eliminate them from our waters. The oxidation of PPCPs by permanganate was evaluated using a spectrophotometer to monitor permanganate reduction. Thirty-nine compounds were chosen to represent numerous classifications, including beta blockers, cephalosporins, fluoroquinolones, macrolides, non-steroidal anti-inflammatory drugs, phenol structures, po
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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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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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Vignoni, Alejandro. "Invariance and Sliding Modes. Application to coordination of multi-agent systems, bioprocesses estimation, and control in living cells." Doctoral thesis, Editorial Universitat Politècnica de València, 2014. http://hdl.handle.net/10251/37743.

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The present thesis employs ideas of set invariance and sliding modes in order to deal with different relevant problems control of nonlinear systems. Initially, it reviews the techniques of set invariance as well as the more relevant results about sliding modes control. Then the main methodologies used are presented: sliding mode reference conditioning, second order sliding modes and continuous approximation of sliding modes. Finally, the methodologies are applied to different problems in control theory and to a variety of biologically inspired applications. The contributions of the the
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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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Paditz, Ludwig. "Über die Annäherung der Verteilungsfunktionen von Summen unabhängiger Zufallsgrößen gegen unbegrenzt teilbare Verteilungsfunktionen unter besonderer Beachtung der Verteilungsfunktion der standardisierten Normalverteilung." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-114206.

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Mit der vorgelegten Arbeit werden neue Beiträge zur Grundlagenforschung auf dem Gebiet der Grenzwertsätze der Wahrscheinlichkeitstheorie vorgelegt. Grenzwertsätze für Summen unabhängiger Zufallsgrößen nehmen unter den verschiedenartigsten Forschungsrichtungen der Wahrscheinlichkeitstheorie einen bedeutenden Platz ein und sind in der heutigen Zeit nicht mehr allein von theoretischem Interesse. In der Arbeit werden Ergebnisse zu neuere Problemstellungen aus der Summationstheorie unabhängiger Zufallsgrößen vorgestellt, die erstmalig in den fünfziger bzw. sechzger Jahren des 20. Jahrhunderts in de
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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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Pal, Madhumita. "Accurate and Efficient Algorithms for Star Sensor Based Micro-Satellite Attitude and Attitude Rate Estimation." Thesis, 2013. http://etd.iisc.ac.in/handle/2005/3428.

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This dissertation addresses novel techniques in determining gyroless micro-satellite attitude and attitude rate. The main objective of this thesis is to explore the possibility of using commercially available low cost micro-light star sensor as a stand-alone sensor for micro-satellite attitude as well as attitude rate determination. The objective is achieved by developing accurate and computationally efficient algorithms for the realization of onboard operation of a low fidelity star sensor. All the algorithms developed here are tested with the measurement noise presented in the catalog of the
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Books on the topic "Second order rate constant"

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Jaworowski, Susan Ekimoto. Mail order pharmacy: First class or second rate? Legislative Reference Bureau, 1992.

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Nielsen, Julie Hassing, and Mark N. Franklin. Eurosceptic 2014 European Parliament Elections: Second Order or Second Rate? Palgrave Macmillan, 2017.

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The Eurosceptic 2014 European Parliament Elections: Second Order or Second Rate? Palgrave Macmillan, 2016.

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Giebler, Heiko. Not Second-Order, but Still Second-Rate? Patterns of Electoral Behavior in German State Elections. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198792130.003.0009.

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Looking at differences in electoral outcome in first- and second-order elections, there is only scant evidence that the second-order approach holds when translated to and tested on the micro level. We present a more nuanced framework that distinguishes between direct and indirect contextual effects as implicit elements of the original second-order approach. Applying our framework to Länder and federal elections in Germany, we show that electoral behavior does not differ—there is no direct effect of the second-order arena. However, the analysis makes a strong case for an indirect effect that re
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Henriksen, Niels E., and Flemming Y. Hansen. Theories of Molecular Reaction Dynamics. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198805014.001.0001.

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This book deals with a central topic at the interface of chemistry and physics—the understanding of how the transformation of matter takes place at the atomic level. Building on the laws of physics, the book focuses on the theoretical framework for predicting the outcome of chemical reactions. The style is highly systematic with attention to basic concepts and clarity of presentation. Molecular reaction dynamics is about the detailed atomic-level description of chemical reactions. Based on quantum mechanics and statistical mechanics or, as an approximation, classical mechanics, the dynamics of
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Henriksen, Niels Engholm, and Flemming Yssing Hansen. Microscopic Interpretation of Arrhenius Parameters. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198805014.003.0008.

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This chapter reviews the microscopic interpretation of the pre-exponential factor and the activation energy in rate constant expressions of the Arrhenius form. The pre-exponential factor of apparent unimolecular reactions is, roughly, expected to be of the order of a vibrational frequency, whereas the pre-exponential factor of bimolecular reactions, roughly, is related to the number of collisions per unit time and per unit volume. The activation energy of an elementary reaction can be interpreted as the average energy of the molecules that react minus the average energy of the reactants. Speci
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Back, Kerry E. Portfolio Choice. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780190241148.003.0002.

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The portfolio choice model is introduced, and the first‐order condition is derived. Properties of the demand for a single risky asset are derived from second‐order risk aversion and decreasing absolute risk aversion. Optimal investments are independent of initial wealth for investors with constant absolute risk aversion. Optimal investments are affine functions of initial wealth for investors iwth linear risk tolerance. The optimal portfolio for an investor with constant absolute risk aversion is derived when asset returns are normally distributed. Investors with quadratic utility have mean‐va
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Back, Kerry E. Utility and Risk Aversion. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780190241148.003.0001.

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Expected utility is introduced. Risk aversion and its equivalence with concavity of the utility function (Jensen’s inequality) are explained. The concepts of relative risk aversion, absolute risk aversion, and risk tolerance are introduced. Certainty equivalents are defined. Expected utility is shown to imply second‐order risk aversion. Linear risk tolerance (hyperbolic absolute risk aversion), cautiousness parameters, constant relative risk aversion, and constant absolute risk aversion are described. Decreasing absolute risk aversion is shown to imply a preference for positive skewness. Prefe
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Lazar, Seth, and Laura Valentini. Proxy Battles in Just War Theory. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198801221.003.0008.

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Orthodox just war theorists argue that the principles governing conduct in war—jus in bello—broadly track the current laws of armed conflict. Revisionists deny this. This chapter argues that these first-order disagreements are traceable to second-order disputes about (i) the appropriate site of principles of jus in bello and (ii) the feasibility constraints that theorizing about jus in bello should take into account. Regarding (i), orthodox theorists focus on the institutions that govern armed conflict, revisionists on individuals’ conduct. The chapter shows that, holding a given site constant
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Bartolini, Giulio, ed. A History of International Law in Italy. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198842934.001.0001.

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This volume critically reassesses the history of international law studies in the Italian context. It aims to address such basic questions as: How have such studies been driven by the convergence of global dynamics and context-dependent solutions based on local features, through a constant process of attrition and cross-fertilization? To what extent have historical and political turning points had an influence on such studies, scholars being part of broader academic or public debates or even active participants as legal advisers or politicians? Was international law used—or misused—by relevant
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Book chapters on the topic "Second order rate constant"

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Sun, Fengzhi, Kilian Ortmann, Kerstin Eckert, and Zhe Lei. "Interferometric Measurement of Forward Reaction Rate Order and Rate Constant of a Dy(III)-PC88A-HCl Solvent Extraction System." In Topics in Applied Physics. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-58376-6_10.

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AbstractA novel approach is reported for obtaining the forward rate law of a rare earth (RE) solvent extraction system. An immiscible water–oil system is studied with a Dy(III) laden aqueous phase and a PC88A laden organic phase with a 1:1 volume ratio, with a total volume of about 0.68 mL. The two phases are poured into a Hele-Shaw cell with a gap width of 1 mm. Hence, a stratified interface forms at the gravitational-perpendicular plane. The Dy(III) concentration boundary layer, as a result of cation exchange, is monitored in real time in the aqueous phase by means of a monochromatic laser-b
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Adkins, William A., and Mark G. Davidson. "Second Order Constant Coefficient Linear Differential Equations." In Ordinary Differential Equations. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-3618-8_3.

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Gray, Alfred, Michael Mezzino, and Mark A. Pinsky. "Second-Order Linear Differential Equations with Constant Coefficients." In Introduction to Ordinary Differential Equations with Mathematica®. Springer New York, 1998. http://dx.doi.org/10.1007/978-1-4612-1736-7_9.

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Gray, Alfred, Michael Mezzino, and Mark A. Pinsky. "Second-Order Linear Differential Equations with Constant Coefficients." In Introduction to Ordinary Differential Equations with Mathematica®. Springer New York, 1997. http://dx.doi.org/10.1007/978-1-4612-2242-2_9.

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Shankar, P. Mohana. "Linear Second Order Differential Equations with Constant Coefficients." In Differential Equations. CRC Press, 2018. http://dx.doi.org/10.1201/b22396-3.

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Goodwine, Bill. "Second-Order Linear Constant-Coefficient Ordinary Differential Equations." In Engineering Differential Equations. Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-7919-3_3.

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Krylov, N. V. "Nonlinear Equations with Constant ‘Coefficients’ in the Whole Space." In Nonlinear Elliptic and Parabolic Equations of the Second Order. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-010-9557-0_2.

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Lin, Wei, and Ciquian Wu. "The Systems of Second Order Partial Differential Equations with Constant Coefficients." In Partial Differential Equations in China. Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1198-0_12.

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Pérez-Rosés, Hebert. "Totally Greedy Sequences Defined by Second-Order Linear Recurrences With Constant Coefficients." In Lecture Notes in Computer Science. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-97000-9_8.

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Lasiecka, Irena, and Xiaojun Wang. "Intrinsic Decay Rate Estimates for Semilinear Abstract Second Order Equations with Memory." In Springer INdAM Series. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-11406-4_14.

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Conference papers on the topic "Second order rate constant"

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Woollam, Richard C., Joshua Owen, Yasmin Hayatgheib, and Richard Barker. "Corrosion Inhibitor Surfactant Optimization: Part 2 – Adsorption Kinetics Approach." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-18045.

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Abstract In Part 1 of this two part paper, the critical micelle concentration (CMC) and corrosion inhibitor efficiency response curve was estimated for mixtures relating to the homologous series of alkyldimethylbenzylammonium chlorides with C12, C14 and C16 tail lengths. In the first paper, the uninhibited and inhibited corrosion rates were used to estimate corrosion inhibitor efficiency and were used to determine the optimum mixture ratio of the three surfactants based on their ability to minimize the steady state inhibited corrosion rate. In this second part, the transient data between the u
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Scarlett, Jonathan, Alfonso Martinez, and Albert Guillen i Fabregas. "Second-order rate region of constant-composition codes for the multiple-access channel." In 2013 51st Annual Allerton Conference on Communication, Control, and Computing (Allerton). IEEE, 2013. http://dx.doi.org/10.1109/allerton.2013.6736578.

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van Rij, Jennifer, Tim Ameel, and Todd Harman. "Constant Wall Temperature Nusselt and Poiseuille Numbers in Rectangular Microchannels." In ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ht2007-32465.

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Slip flow convective heat transfer and friction loss characteristics are numerically evaluated for constant wall temperature rectangular microchannels. The effects of rarefaction, accommodation coefficients, aspect ratio, second-order slip boundary conditions, axial conduction, and viscous dissipation with flow work are each considered. Second-order slip boundary conditions, axial conduction, and viscous dissipation with flow work effects have not been studied previously for rectangular channel slip flows. The effects of each of these parameters on the numerically computed convective heat tran
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Pydzinska, Katarzyna, Jerzy Karolczak, Janusz Szeremeta, Konrad Wojciechowski, and Marcin Ziolek. "Transient Absorption of Perovskite Solar Cells. Differences in the Transient Features due to Synthesis Methods and Proper Determination of the Second Order Recombination Rate Constant." In nanoGe Fall Meeting 2018. Fundació Scito, 2018. http://dx.doi.org/10.29363/nanoge.fallmeeting.2018.157.

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Pydzinska, Katarzyna, Jerzy Karolczak, Janusz Szeremeta, Konrad Wojciechowski, and Marcin Ziolek. "Transient Absorption of Perovskite Solar Cells. Differences in the Transient Features due to Synthesis Methods and Proper Determination of the Second Order Recombination Rate Constant." In nanoGe Fall Meeting 2018. Fundació Scito, 2018. http://dx.doi.org/10.29363/nanoge.nfm.2018.157.

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Gao, Hongchang, and Heng Huang. "Stochastic Second-Order Method for Large-Scale Nonconvex Sparse Learning Models." In Twenty-Seventh International Joint Conference on Artificial Intelligence {IJCAI-18}. International Joint Conferences on Artificial Intelligence Organization, 2018. http://dx.doi.org/10.24963/ijcai.2018/294.

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Sparse learning models have shown promising performance in the high dimensional machine learning applications. The main challenge of sparse learning models is how to optimize it efficiently. Most existing methods solve this problem by relaxing it as a convex problem, incurring large estimation bias. Thus, the sparse learning model with nonconvex constraint has attracted much attention due to its better performance. But it is difficult to optimize due to the non-convexity. In this paper, we propose a linearly convergent stochastic second-order method to optimize this nonconvex problem for large
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Dörfle, M., and R. Graham. "Semi-classical Limit of Chaos and Quantum Noise in Second Harmonic Generation." In Instabilities and Dynamics of Lasers and Nonlinear Optical Systems. Optica Publishing Group, 1985. http://dx.doi.org/10.1364/idlnos.1985.thc6.

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Second harmonic generation and subharmonic generation in a cavity are described by the usual master equation (1) for the statistical operator of the system of two modes (fundamental and second harmonic). The master equation is equivalent to a partial differential equation for the Wigner function which is a generalized Fokker-Planck equation involving partial derivatives of the first, second and third order (2). In the semi-classical limit the third order derivatives are negligible and the Wigner distribution satisfies the Fokker-Planck equation equivalent to the Langevin equation with the form
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Rice, Perry R., Xiaoyi Wang, and Howard J. Carmichael. "Cross correlations between fluorescent and transmitted photons in single-atom cavity-enhanced absorption." In OSA Annual Meeting. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.ms9.

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We study a single two-level atom interacting on resonance with a weakly driven optical cavity mode. In earlier work on this system we calculated the degree of second-order coherence, the optical spectrum, and the spectrum of squeezing for both the transmitted light and fluorescence out the sides of the cavity.1,2 We present results for the cross-correlation functions that determine joint probabilities for a photodetection in transmission (fluorescence) followed by a photodetection in fluorescence (transmission). We compute these correlation functions numerically for arbitrary values of the thr
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Sciacovelli, Adriano, Elisa Guelpa, and Vittorio Verda. "Second Law Analysis of Tree-Shaped Fins for the Heat Transfer Enhancement in a PCM Thermal Storage System." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65105.

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Latent heat thermal energy storage (LHTES) systems based on phase change materials (PCMs) are a promising option to be employed as effective energy storage devices. PCM allows one to achieve high energy storage density and almost constant temperature energy retrieval, however LHTES systems performance is limited by poor thermal conductivity of the PCMs which leads to unacceptably low melting and solidification rates. Thus, heat transfer enhancement techniques are required in order to obtain acceptable melting and solidification rates. The preliminary design of a shell-and-tube LHTES unit is in
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Chmielewska, J., and B. Wiman. "ON THE KINETICS OF THE INHIBITION OF PLASMINOGEN ACTIVATORS BY THE PLASMINOGEN ACTIVATOR INHIBITOR PAI-1." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1642808.

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The kinetics of the inhibition of the following plasminogen activators: one- and two-chain tissue plasminogen activator (t-PA) and low and high molecular weight urokinase (UK) by PAI-1 was studied. For this purpose direct systems were employed and the reactions were studied in the presence of different concentrations of plasminogen activator chromogenic substrates. The second-order rate constant of the association reaction was estimated from the initial decline in plasminogen activator activity. Determination of the rate constants in the absence of substrates was performed by plotting the rate
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Reports on the topic "Second order rate constant"

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Ajzenman, Nicolás, and Laura Jaitman. Crime Concentration and Hot Spot Dynamics in Latin America. Inter-American Development Bank, 2016. http://dx.doi.org/10.18235/0011745.

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Latin America and the Caribbean is the most violent region in the world, with an annual homicide rate of more than 20 per 100,000 population and with an increasing trend. Yet most evidence of crime concentration, geo-temporal patterns, and event dependence comes from cities in high-income countries. Understanding crime patterns in the region and how they compare to those in high-income countries is of first-order importance to formulate crime reduction policies. This paper is the first to analyze crime patterns of cities in five Latin American countries. Using micro-geographic units of analysi
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Larrahondo, Cristhian, Augusto Chávez, Laura Giles Álvarez, and Leandro Gaston Andrian. The exchange rate passthrough to domestic prices, new evidence from Colombia. Inter-American Development Bank, 2025. https://doi.org/10.18235/0013378.

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This paper calculates the exchange rate pass through (ERPT) with time constant and time varying coefficients for Colombia between 2006 and 2023. It then estimates the ERPT during four specific depreciation events during the period of analysis: the 2008 financial crisis, the 2014-2016 fall in international fuel prices, the COVID-19 pandemic and the post-COVID recovery. A Bayesian Vector Autoregressive model with exogenous variables (BVARX) model with time constant and time varying coefficients is used for the exercise. The results for time constant coefficients show that a 1 percentage point (p
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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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Mendoza, Waldo, Marco Vega, Carlos Rojas, and Yuliño Anastacio. Fiscal Rules and Public Investment: The Case of Peru, 2000-2019. Inter-American Development Bank, 2021. http://dx.doi.org/10.18235/0003018.

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This article has three goals. First, it describes the genesis of fiscal rules in Peru and its degree of compliance. Second, it estimates the effect of fiscal rules adoption on public investment. Last, it analyzes the impact of alternative fiscal rules on public investment and public debt sustainability. Our main results are as follows. First, the implementation of fiscal rules in the year 2000 caused a 60 to 80 percent fall in public investment relative to several counterfactuals. Second, our DSGE model suggests a Structural Fiscal Rule would have increased the consumers welfare in the period
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Restrepo, Sergio, Roberto Steiner, Juan Camilo Medellín, César Pabón, and Adolfo Barajas. Balance Sheet Effects in Colombian Non-Financial Firms. Inter-American Development Bank, 2016. http://dx.doi.org/10.18235/0011769.

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After building up foreign currency-denominated (FC) liabilities over several years, the balance sheets of Colombian firms might be particularly vulnerable to a shift in external conditions. This paper undertakes four exercises in order to get a better understanding of these vulnerabilities. First, probit/logit estimations are used to identify the firm-level and macroeconomic determinants of FC borrowing by non-financial corporations. Second, the implications of the balance sheet vulnerability for real activity are investigated. Evidence is found of an FC balance sheet effect that transmits exc
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Bauza, Rodrigo, and Daniel Olsen. PR-179-20200-R01 Improved Catalyst Regeneration Process to Increase Poison Removal. Pipeline Research Council International, Inc. (PRCI), 2021. http://dx.doi.org/10.55274/r0012106.

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In this work, the details of catalyst poison deposition are studied, and new catalyst restoration methods are explored. Lubrication oil makes its way through the combustion chamber and into the exhaust system, depositing poisons onto the catalyst and degrading catalyst performance. To estimate the degradation rate of the units and to find the best restoration method, two identical alumina-platinum oxidation catalysts were used in a dual setting, combining a field degradation engine and a laboratory testing engine. In order to find the best restoration process, the combination of both baking an
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Wu, Xiaoqi, Maoxia Fan, Yaobo Pan, and Dona Guo. Quality of Evidence Supporting the Effects of Ginkgo Terpene Lactone Preparations in Ischemic Stroke: An Overview of Systematic Reviews and Meta-Analyses. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.9.0124.

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Review question / Objective: 2.2.1 Type of studies SRs/MAs of Randomized Controlled Trials (RCTs) of GTLP for IS in any language. 2.2.2 Type of Participants Included patients were diagnosed with IS according to international or national standards, regardless of race, age, gender, time of onset, and source of cases. 2.2.3 Type of Intervention The intervention method in the control group was routine treatment, and the intervention method in the intervention group was GTLP treatment or GTLP combined with the treatment of the control group. 2.2.4 Types of outcomes Conclusions at least need to incl
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Knibb, Rebecca, Lily Hawkins, and Dan Rigby. Food Sensitive Study: Wave Two Survey. Food Standards Agency, 2022. http://dx.doi.org/10.46756/sci.fsa.nyx192.

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Food hypersensitivities (FH) include food allergy, food intolerance and coeliac disease. Food allergy and coeliac disease involve an immune mediated reaction to certain foods; food intolerance is caused by a non-immune mediated reaction (such as an enzymatic or pharmacological effect). Each of these FHs result in unpleasant symptoms if the food is eaten in sufficient quantity, with food allergic reactions sometimes resulting in life-threatening symptoms. Management of FH by an individual or members of their family therefore involves constant vigilance and risk assessment to determine if a food
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Regan, Jack, and Robin Zevotek. Evaluation of the Thermal Conditions and Smoke Obscuration of Live Fire Training Fuel Packages. UL Firefighter Safety Research Institute, 2019. http://dx.doi.org/10.54206/102376/karu4002.

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Firefighters routinely conduct live fire training in an effort to prepare themselves for the challenges of the fire ground. While conducting realistic live fire training is important, it also carries inherent risks. This is highlighted by several live fire training incidents in which an inappropriate fuel load contributed to the death of participants. NFPA 1403: Standard on Live Fire Training Evolutions was first established in response to a live fire training incident in which several firefighters died. Among the stipulations in NFPA 1403 is that the fuel load shall be composed of wood-based
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Brosh, Arieh, David Robertshaw, Yoav Aharoni, Zvi Holzer, Mario Gutman, and Amichai Arieli. Estimation of Energy Expenditure of Free Living and Growing Domesticated Ruminants by Heart Rate Measurement. United States Department of Agriculture, 2002. http://dx.doi.org/10.32747/2002.7580685.bard.

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Research objectives were: 1) To study the effect of diet energy density, level of exercise, thermal conditions and reproductive state on cardiovascular function as it relates to oxygen (O2) mobilization. 2) To validate the use of heart rate (HR) to predict energy expenditure (EE) of ruminants, by measuring and calculating the energy balance components at different productive and reproductive states. 3) To validate the use of HR to identify changes in the metabolizable energy (ME) and ME intake (MEI) of grazing ruminants. Background: The development of an effective method for the measurement of
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