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Dissertations / Theses on the topic 'Reactiion kinetics'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2025

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1

Ribeiro, Joao Marcelo Lamim. "Kinetics and Reaction Mechanisms for Methylidyne Radical Reactions with Small Hydrocarbons." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/3023.

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The chemical evolution with respect to time of complex macroscopic mixtures such as interstellar clouds and Titan’s atmosphere is governed via a mutual competition between thousands of simultaneous processes, including thousands of chemical reactions. Chemical kinetic modeling, which attempts to understand their macroscopic observables as well as their overall reaction mechanism through a detailed understanding of their microscopic reactions and processes, thus require thousands of rate coefficients and product distributions. At present, however, just a small fraction of these have been well-s

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2

Rushworth, Philip John. "Quantitative asymmetric reaction kinetics." Thesis, University of Warwick, 2011. http://wrap.warwick.ac.uk/45827/.

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The comparison of catalysts for producing chiral materials is of vital importance in the improvement of reaction scope and efficacy. Here we describe a new method of analysing the kinetics of the stereodetermining steps in asymmetric reactions by performing ligand/catalyst competition experiments against an internal standard and measuring the enantiomeric excess obtained at a variety of ratios of ligand/catalyst to internal standard. From these enantiomeric excess measurements, we can establish the relative rate of reaction between the ligand/catalyst systems and the internal standard, allowin

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3

Melane, Pumeza. "Kinetics reactions of Ammonium Nitrate-Sodium Nitrite Reaction and Ammonium Nitrate Emulsion Explosives." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/6333.

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The aim of this study was to understand and control the gasification rates in ammonium nitrate emulsion explosive using ammonium nitrate-sodium nitrite reaction. This reaction produces N2 gas which is the sensitizer in emulsion explosives. The NH4NO3-NaNO2 gassing reaction produces N2 gas and so the reaction could be followed by the pressure increase in a closed reaction vessel. The reaction is pH sensitive, so the role of pH was investigated in the pH range 2 to 5. Gasification reactions for unbuffered NH4NO3-NaNO2 reaction were found to be rapid below pH = 3 and maximum pressure was attained

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4

Iwamura, Hiroshi. "Mechanistic insights from kinetic analysis by reaction calorimetry into proline-catalyzed asymmetric reactions and autocatalytic reaction." 京都大学 (Kyoto University), 2006. http://hdl.handle.net/2433/136952.

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5

Vaidyaraman, Sundar. "Kinetics of the bosch reaction." Thesis, Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/10277.

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6

Nelson, Dorothy Caroline. "Reaction kinetics of gasless pyrotechnics." Thesis, University of Leeds, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293701.

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7

Frömberg, Daniela. "Reaction Kinetics under Anomalous Diffusion." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2011. http://dx.doi.org/10.18452/16374.

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Die vorliegende Arbeit befasst sich mit der Verallgemeinerung von Reaktions-Diffusions-Systemen auf Subdiffusion. Die subdiffusive Dynamik auf mesoskopischer Skala wurde mittels Continuous-Time Random Walks mit breiten Wartezeitverteilungen modelliert. Die Reaktion findet auf mikroskopischer Skala, d.h. während der Wartezeiten, statt und unterliegt dem Massenwirkungsgesetz. Die resultierenden Integro-Differentialgleichungen weisen im Integralkern des Transportterms eine Abhängigkeit von der Reaktion auf. Im Falle der Degradation A->0 wurde ein allgemeiner Ausdruck für die Lösungen beliebiger D

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8

Rivera, Díaz del Castillo Pedro Eduardo José. "Kinetics of precipitation reactions." Thesis, University of Cambridge, 2002. https://www.repository.cam.ac.uk/handle/1810/221870.

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9

Saleh, Nail Asad. "Dynamical solvent effect in 1-(9-anthryl)-3-(4-dimethylaniline) propane charge transfer reactions /." free to MU campus, to others for purchase, 2002. http://wwwlib.umi.com/cr/mo/fullcit?p3060138.

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10

Tenney, Joel David. "The kinetics of the chlorine dioxide generation reaction." Thesis, Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/10020.

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11

Holmes, R. "Reaction kinetics of oil coke particles." Thesis, University of Portsmouth, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376048.

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12

Wilkinson, Sam K. "Reaction kinetics in formulated industrial catalysts." Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/5113/.

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In heterogeneous catalysis, a fundamental understanding of the necessary physico-chemical requirements for a catalyst formulation is essential to its success. Understanding of reaction kinetics via modelling can demonstrate how catalysts work, providing functional information around surface active sites and reaction mechanism. This tool, combined with well-designed laboratory experiments to test a catalyst under steady and/or non-steady state conditions, can provide insight into the links between catalyst formulation and reaction performance. The aim of this project is to develop novel strateg

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13

Moonga, B. S. "The kinetics of protiodecarbonylation reactions." Thesis, Brunel University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375474.

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14

Grigsby, Charles Owen 1951. "Kinetics of rock-water reactions." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/37986.

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15

Heard, Dwayne Ellis. "Laser studies of chemical kinetics." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.258025.

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16

Tempelmann, Alexandra. "Reaction kinetics of muonium with hydrogen bromide." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/30385.

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The rate constants of the abstraction reaction Mu + HBr —• MuH + Br were measured using the well established μSR technique at TRIUMF. Measurements were made at various temperatures between 170 and 480 K, and fit to the Arrhenius equation both with and without an additional T½ dependence. The rate constants obtained were k(T) = (5.101 ± 0.106) x 10⁻¹¹ exp{-(0.560 ± 0.110) kcal mol⁻¹/RT} and k(T) = (0.183 ± 0.005) x 10⁻¹¹T½exp{-(0.286± 0.014) kcal mol⁻¹/RT} cm³ molecule⁻¹ s⁻¹. The low activation energy for such an exothermic reaction indicates that the barrier on the Mu + HBr surface is early. K

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17

Zhao, Rong. "Thiyl radicals, reaction kinetics and redox chemistry." Doctoral thesis, Stockholm, 1998. http://www.lib.kth.se/abs98/zhao1218.pdf.

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18

Soller, Raenell. "Photochemistry and reaction kinetics of bromine nitrate." Diss., Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/26223.

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19

Seakins, Paul W. "Thermochemistry and reaction kinetics of alkyl radicals." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.276856.

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20

Dunningham, Elizabeth A. "Kinetics of the wood-acetic anhydride reaction." Thesis, Bangor University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273575.

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21

Braddock, Gareth Rhys. "Microfluidic stopped-flow measurement of reaction kinetics." Thesis, University of Sheffield, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.575450.

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In recent decades microfluidic analytical devices have become an increasingly popular re- search topic because of the advantages they confer over their macro-scale counterparts. These include inherent low sample hold up volume, rapid response times and flexible operation. These benefits as well as their predisposition to automation make them ideal for use in high throughput analytical systems. The work presented in this thesis is concerned with the underpinning technical issues of per- forming a microfluidic stopped-flow reaction kinetics measurement test. These are concentrated on the ability

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22

Prosser, J. L. "The kinetics of reaction epoxy powder coatings." Thesis, City University London, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333577.

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23

Thurston, Tom. "Chemometrics, kinetics and software for reaction monitoring." Thesis, University of Bristol, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.411114.

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24

Mössinger, Juliane Cornelia. "Heterogeneous reaction kinetics of atmospheric halogen species." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621294.

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25

Matthews, Sinéad Marie. "A microfluidic investigation of interfacial reaction kinetics." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.613334.

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26

Mahmutovic, Anel. "Reaction-Diffusion kinetics of Protein DNA Interactions." Doctoral thesis, Uppsala universitet, Beräknings- och systembiologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-263527.

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Transcription factors need to rapidly find one specific binding site among millions of nonspecific sites on the chromosomal DNA. In this thesis I use various aspects of reaction-diffusion theory to investigate the interaction between proteins and DNA and to explain the searching, finding and binding to specific operator sites. Using molecular dynamics methods we calculate the free energy profile for the model protein LacI as it leaves a nonspecific stretch of DNA and as it slides along DNA. Based on the free energy profiles we estimate the microscopic dissociation rate constant, kdmicro ~1.45×

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27

Bellion, Ian Richard. "Kinetics of the sulphite- inhibited Maillard reaction." Thesis, University of Leeds, 1992. http://etheses.whiterose.ac.uk/2604/.

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The kinetics of the inhibition of Maillard browning of glucose and glycine by suIphur(IV) oxospecies, S(IV), are reported in detail in water, and solutions containing either 40% w/w ethanol, 40% w/w polyethylene glycol 400 or up to 81.5% w/w glycerol. The progress of the reaction was followed by measuring free and reversibly bound S(IV), production of H+ and formation of sulphate ion. Equilibria between S(IV)-species were investigated by Fourier Transform Infrared (FTIR) Spectroscopy. Kinetic data show that despite earlier reports demonstrating a lack of an effect of pH on this reaction, maint

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28

Poole, Anthony John. "Reaction-diffusion structures in nonlinear chemical kinetics." Thesis, University of Leeds, 1998. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.712528.

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29

Hakin, Andrew William. "Kinetics of reactions in aqueous solutions." Thesis, University of Leicester, 1987. http://hdl.handle.net/2381/33716.

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Rate constants for chemical reactions in various aqueous systems have been measured and analysed. A major part of this thesis discusses the effect of added salts on the reaction kinetics of organic substrates and the effect of added cosolvent on iron(II) complexes in solution. The thesis discusses the properties of aqueous solutions with reference to the prediction of trends in kinetic parameters. Transfer chemical potentials for single ions in 'urea + water' mixtures have been estimated, using solubility data for salts in conjunction with the tetraphenylarsonium tetraphenylboronate assumption

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30

Calderini, Danilo. "Kinetics and dynamics for chemical reactions in gas phase." Doctoral thesis, Scuola Normale Superiore, 2016. http://hdl.handle.net/11384/85818.

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A deep understanding of molecular reactions is a challenging task since the range of time and energy covered implies a wide and dense grid for the numerical representation of the reactive Hamiltonian. For a computational chemist, the accurate prediction of its value starting from the definition of reactants and products is fascinating and demanding, but can be extremely useful for further investigation and optimization problems. Several methods, all derived by the Transition State Theory, have been developed to avoid the computational cost of the Hamiltonian representation on a large, multid

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31

Knowles, Haydn Scott. "The light activated alkylation of glycine." Thesis, University of York, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341492.

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32

Firat, Fatih. "Gas Phase Reaction Kinetics Of Boron Fiber Production." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605188/index.pdf.

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In the production of boron fibers using CVD technique, boron deposition and dichloroborane formation reactions take place in a reactor. Boron deposition reaction occurs at the surface while formation of dichloroborane is the result of both gas phase and surface reactions. A CSTR type of reactor was designed and constructed from stainless steel to investigate the gas phase reaction kinetics and kinetic parameters of boron fibers produced from the reaction of boron trichloride and hydrogen gases in a CVD reactor. The gases were heated by passing through the two pipes which were located into the

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33

Richter, Florian [Verfasser]. "Ultracold chemistry and its reaction kinetics / Florian Richter." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover (TIB), 2015. http://d-nb.info/1077017014/34.

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34

O'Rourke, David John. "The use of calorimetry to study reaction kinetics." Thesis, London South Bank University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388168.

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35

Lesutis, Heather Patrick. "Reaction kinetics in environmentally benign novel solvent systems." Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/11865.

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36

Chinnick, S. J. "Computer based elucidation of reaction mechanisms." Thesis, University of Leeds, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380303.

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37

Goy, Aytunc. "Axial Ligand Substitution Reaction Kinetics Of Pyrimidine-2-thionato Bridged Binuclear Platinum(iii) Complexes." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/2/12608684/index.pdf.

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ABSTRACT AXIAL LIGAND SUBSTITUTION REACTION KINETICS OF PYRIMIDINE-2-THIONATO BRIDGED BINUCLEAR PLATINUM(III) COMPLEXES G&ouml<br>y, Aytun&ccedil<br>M. S. Department of Chemistry Supervisor: Prof. Dr. H&uuml<br>seyin iS&ccedil<br>i Co-supervisor: Assoc. Prof.Dr. Seniz &Ouml<br>zalp Yaman September 2007, 89 pages The kinetics of the ligand substitution reactions, which is represented by the equation, [Pt2(C4H3N2S)4X2] + 2Y- Pt2(C4H3N2S)4Y2 + 2X- where X- = Cl-, Br-, I- and Y- = Cl-, Br-, I- are studied in acetonitrile in the presence of excess Y-

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38

Syal, Sham. "The nonequilibrium kinetics of reversible bimolecular reactions." Thesis, University of Ottawa (Canada), 1999. http://hdl.handle.net/10393/8826.

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The master equation describing the rate of the bimolecular reaction A+BC&rlhar2;AB+C under steadystate conditions at the vibrational level of detail, is solved by a matrix technique. A computer program (MRBIM) has been written by the author to exploit the matrix technique as applied to the H + O 2 reaction. Reaction from levels v = 0 to 15 for O2 and from levels v = 0 to 9 for OH are considered for, while vibrational-translational (V -- T) energy transfer by O2, H, OH, O and He is considered as the mechanism for equilibration. The distortion to the fates of the reaction H+O2&rlhar2;OH+O

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39

West, H. "Kinetics and mechanism of wood-isocyanate reactions." Thesis, Bangor University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382248.

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40

Monks, Paul S. "Kinetics of radical reactions of tropospheric importance." Thesis, University of Oxford, 1991. http://ora.ox.ac.uk/objects/uuid:57362031-6d04-481e-8b23-cc2cefa1cc5c.

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The object of the research described in this thesis is to provide, by means of laboratory experiments, data required to understand the atmospheric chemistry of the nitrate radical, from both a mechanistic and kinetic point of view. The low pressure discharge-flow kinetic technique coupled detection of the NO<sub>3</sub> radical by optical absorption was used to measure the temperature-dependent rate coefficients for the reaction of NO<sub>3</sub> with 1-butene, 1-chloro-l-butene, 2-chloro-2-butene, 3-chloro-l-butene, 1-chloro-2-butene, 2-chloro-2-butene, 1-chloromethylpropene, 3-chloromethylpr

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41

Lee, Heung Chan. "Magnetic field effects on electron transfer reactions: heterogeneous photoelectrochemical hydrogen evolution and homogeneous self exchange reaction." Diss., University of Iowa, 2010. https://ir.uiowa.edu/etd/2562.

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Magnetic field effects (MFE) on electrochemical systems have been of interest to researchers for the past 60 years. MFEs on mass transport, such as magnetohydrodynamics and magnetic field gradients effects are reported, but MFEs on electron transfer kinetics have been rarely investigated. Magnetic modification of electrodes enhances electron transfer kinetics under conditions of high concentrations and low physical diffusion conditions, as shown by Leddy and coworkers. Magnetic microparticles embedded in an ion exchange polymer (e.g., Nafion) applied to electrode surfaces. Rates of electron tr

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42

Hall, I. W. "Kinetic studies of atmospheric reactions." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236263.

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43

Mansfield, Jonathan Mark. "Reaction behaviour from temperature dynamics." Thesis, University of Nottingham, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339552.

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44

Legodi, Annah Mokganyetji Kgotlelelo. "Analysis of heat transfer and thermal stability in a slab subjected to Arrhenius kinetics." Thesis, Cape Peninsula University of Technology, 2010. http://hdl.handle.net/20.500.11838/1250.

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Thesis (MTech (Mechanical Engineering))--Cape Peninsula University of Technology, 2010<br>Development of safe storage for reactive combustible materials to prevent possible human and environmental hazards as well as ensure and enhance industrial safety can significantly benefit from mathematical modelling of systems. In the recent past, models with varying degrees of sophistication have been developed and applied to the problem of predicting thermal criticality conditions, temperature and concentration profiles of such system. In this thesis, a model showing the temperature history of an

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45

Davies, Joanne Wendy. "Studies of gas-phase radical reactions." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329952.

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46

Socaciu-Siebert, Liana D. "Reaction kinetics and femtosecond dynamics of small gold clusters." [S.l. : s.n.], 2004. http://www.diss.fu-berlin.de/2004/335/index.html.

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47

Ghionis, Anastase Constantine. "Kinetics and modeling of a complex condensation reaction system." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/10914.

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48

Keskin-Schneider, Aliye. "Engineering reaction kinetics in sulfite and sulfite-anthraquinone pulping." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=70207.

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In this study, engineering reaction kinetics of sulfite and sulfite-anthraquinone pulping of black spruce wood are investigated. The considered sulfite processes are neutral-sulfite (NS), neutral sulfite-anthraquinone (NS-AQ), neutral sulfite semichemical (NSSC) and neutral sulfite semichemical anthraquinone (NSSC-AQ).<br>In preliminary studies, an experimental design was tested and optimum kinetic conditions were found so that penetration and diffusion would not be the rate-controlling steps and the amount of anthraquinone would not be reaction limiting.<br>Delignification and carbohydrate de

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49

Kwok, Kin-Chor Casey. "Reaction kinetics of heat-induced quality changes in soymilk." Thesis, University of Reading, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263043.

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50

Messner, Robert Paull. "Formation kinetics of reaction bonded silicon carbide based materials." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13704.

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