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Dissertations / Theses on the topic 'Thermogravimetric Analysis - Differential Thermal Analysis'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Smith, Beverly. "Investigating Thermal Transformations of Ligand-Stabilized Gold Nanoparticles: Influence of the Structural Attributes of the Nanoparticle and Its Environment on Thermal Stability." Thesis, University of Oregon, 2015. http://hdl.handle.net/1794/19259.

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Ligand-stabilized metal nanoparticles (LSNPs) have garnered significant attention for use in applications including sensing, catalysis, and thin film fabrication. Many uses rely on the size-dependent properties of the metal nanoparticle core. Therefore, preservation of nanoparticle core size is of paramount importance. In other uses, the low processing temperatures afforded by metal LSNPs make them attractive as precursors for conductive thin films. In these distinctly different applications, understanding nanoparticle thermal stability is crucial. A key finding of this research is that na

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2

Lans, Alexa Michelle. "Evaluation of Water Sorption and Thermal Properties of Galacto-oligosaccharides, and Application in Glassy Confections." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1460764786.

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3

Ertunc, Goker. "Development Of A Software For Determination Of Kinetic Parameters In Thermal Analysis." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613624/index.pdf.

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In this thesis, a new software, THERA-Kinetics was developed for the evaluation of kinetic parameters using non-isothermal data. Different computational methods, available in the software, were applied to a set of experimental and simulated data distributed in the ICTAC (International Confederation for Thermal Analysis and Calorimetry) Kinetics Project. The reliability of the software was verified by comparing the kinetic results, which were in good agreement, with those obtained by the participants of the ICTAC Kinetics Project. It was also within the scope of this study to examine the combus

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4

Fruscella, Jeffrey Allen. "THERMAL ANALYSIS AS AN IMPORTANT RESEARCH TOOL FOR COLLEGES AND UNIVERSITIES." Cleveland State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=csu1323301810.

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5

Trindade, Nuno Miguel Passarinho. "Stochastic modeling of the thermal and catalytic degradation of polyethylene using simultaneous DSC/TG analysis." Master's thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/8468.

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Dissertação para obtenção do Grau de Mestre em Engenharia Química e Bioquímica<br>In the present work a stochastic model to be used for analyzing and predicting experimental data from simultaneous thermogravimetric (TG) and differential scanning calorimetry (DSC) experiments on the thermal and catalytic degradation of high-density polyethylene (HDPE) was developed. Unlike the deterministic models, already developed, with this one it’s possible to compute the mass and energy curves measured by simultaneous TG/DSC assays, as well as to predict the product distribution resulting from primary cra

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6

Gundogar, Sati Asli. "Thermal Characterization And Kinetics Of Crude Oils By Tga And Dsc Methods." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611502/index.pdf.

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In recent years, the application of thermal analysis to study the combustion and pyrolysis behavior of fossil fuels has gained a wide acceptance because of its significance for industry and economy. In this thesis, the thermal and kinetic analysis of different origin crude oil samples are performed by two well-known thermal analysis techniques: Differential Scanning Calorimetry (DSC) and Thermogravimetry (TG/DTG). The investigation of combustion and pyrolysis behaviors, kinetic analysis of oil samples and the determination of heating rate effect are the main objectives of this study. Six diffe

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Laurenti, Karen Cristina. "Avaliação da presença de gordura em tecido muscular e carnes usando DTA e TG." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/82/82131/tde-14022008-105743/.

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Um dos principais fatores da qualidade de vida está relacionado a uma alimentação saudável. Uma alimentação saudável deve ser composta de uma série de nutrientes que sejam essenciais para o crescimento e para a manutenção dos tecidos e órgãos. Assim, este trabalho tem por objetivo avaliar a presença de gordura intramuscular empregando-se a termogravimetria (TG) e análise térmica diferencial (DTA). Os testes preliminares por TG e DTA foram realizados em músculos de coelho, porco, frango, peixe e boi e suas respectivas gorduras. Realizaram-se experimentos com ratas, submetidas a uma dieta enriqu

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8

Gul, Kiymet Gizem. "Thermal Characterization And Kinetic Analyis Of Sara Fractions Of Crude Oils By Tga And Dsc Methods." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613614/index.pdf.

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In this thesis, four different crude oil samples and their saturate, aromatic and resin fractions were analyzed by two different thermoanalytical methods, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The experiments were performed at three different heating rates (5, 10 and 15 &deg<br>C/min) under air atmosphere. Same gas flow rate and same pressure were applied to all samples. The aim is to determine the kinetic analysis and combustion behavior of crude oils and their fractions and also determining the effect of heating rate on all samples. For all samples

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9

Sharma, Varun. "Evaluation of novel metalorganic precursors for atomic layer deposition of Nickel-based thin films." Master's thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-166627.

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Nickel und Nickel (II) -oxid werden in großem Umfang in fortgeschrittenen elektronischen Geräten verwendet. In der Mikroelektronik-Industrie wird Nickel verwendet werden, um Nickelsilizid bilden. Die Nickelmono Silizid (NiSi) wurde als ausgezeichnetes Material für Source-Drain-Kontaktanwendungen unter 45 nm-CMOS-Technologie entwickelt. Im Vergleich zu anderen Siliziden für die Kontaktanwendungen verwendet wird NiSi wegen seines niedrigen spezifischen Widerstand, niedrigen Kontaktwiderstand, relativ niedrigen Bildungstemperatur und niedrigem Siliziumverbrauchs bevorzugt. Nickel in Nickelbasis-A

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Denari, Gabriela Bueno. "Contribuições ao ensino de análise térmica." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/75/75135/tde-04042013-151955/.

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Considerando a importância crescente das técnicas termoanalíticas na indústria e na pesquisa contemporânea, torna-se necessário apresentá-las de forma adequada aos alunos de cursos de graduação, não apenas de química, mas de ciência dos materiais, física, farmácia, das diversas modalidades de engenharia, entre outros. Por outro lado, pode-se notar que isso raramente acontece, por diversos motivos, como falta de equipamentos, falta de experimentos demonstrativos das técnicas e até mesmo de falta de preparo dos docentes, com relação ao conhecimento dos fundamentos das técnicas e normalização de

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11

Kovačíková, Barbora. "Termo-oxidační stabilita směsí rostlinných olejů." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2010. http://www.nusl.cz/ntk/nusl-216590.

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Rostlinné oleje se používají v mnoha odvětvích chemického průmyslu. V průběhu zpracování konkrétního produktu, ve kterém jsou rostlinné oleje použity, dochází často ke zvyšování teploty. Vyšší teplota urychluje průběh auto-oxidace což negativně ovlivňuje stabilitu olejů nebo výrobků z nich připravených. Mezidruhové mísení olejů je poměrně častým jevem jak při samotné výrobě tak i ve finálním výrobku. Cílem této práce bylo stanovit termo-oxidační stabilitu šesti čistých rostlinných olejů a jejich binárních směsí. První část práce zkoumá oleje a připravené směsi pomocí metody diferenciální kompe

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MISSO, AGATHA M. "Síntese e caracterização de fósforos a base de silicatos de cálcio e magnésio dopados com európio e disprósio." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/27510.

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Submitted by Marco Antonio Oliveira da Silva (maosilva@ipen.br) on 2017-05-25T17:33:34Z No. of bitstreams: 0<br>Made available in DSpace on 2017-05-25T17:33:34Z (GMT). No. of bitstreams: 0<br>Fósforos a base de silicatos de Ca e Mg foram preparados pelo método sol-gel combinado com o processo de sais fundidos. O gel de sílica foi obtido a partir da solução de Na2SiO3 usando soluções de cloretos de európio, disprósio, cálcio e magnésio. Assim, estes cloretos foram homogeneamente distribuídos no gel. O gel obtido foi seco e tratado termicamente a 900°C por 1h para permitir a fusão dos sais prese

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13

Topa, Ece Hatice. "Thermal Characterization And Kinetics Of Diesel, Methanol Route Biodiesel, Canola Oil And Diesel-biodiesel Blends At Different Blending Rates By Tga And Dsc." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612460/index.pdf.

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Application of thermogravimetric analysis to the renewable energy sources is a novel study and it has been becoming attractive by the researchers in recent years. In this thesis, thermal and kinetic properties of biodiesel as new energy source, diesel and canola oil have been analyzed by using very popular thermogravimetric analysis methods which are<br>Differential Scanning Calorimetry (DSC) and Thermogravimetry (TGA/DTG). The main aim of the study is to observe the combustion and pyrolysis behaviour of methanol route biodiesel and diesel blends at different blending rates. Additionally, comb

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14

Modi, Sunny J. "Assessing the Feasibility of Poly-(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and Poly-(lactic acid) for Potential Food Packaging Applications." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1268921056.

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15

Lele, Stephen, and slele@bigpond net au. "Additives on the Curing of Phenolic Novolak Composites." RMIT University. Applied Sciences, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070205.095402.

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The research programme studied the cure reaction of a phenolic novolak resin and the effects of various additives and fillers on the reaction. The programme utilised the recently developed thermal analysis technique of temperature-modulated differential scanning calorimetry (TMDSC) performed in conjunction with other available thermal analysis techniques. TMDSC enables the signal for the heat of reaction to be separated from the underlying specific heat change in the resin. This meant that the reaction could be studied without interference from any physical changes in the resin.

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16

Zuru, Abdullahi Abdu. "Evaluation of kinetic parameters and investigation of reaction mechanisms using rising temperature thermogravimetric technique." Thesis, University of Salford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315456.

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17

Carvalho, Cláudio Teodoro de [UNESP]. "Síntese, caracterização e estudo do comportamento térmico dos 2-metoxicinamalpiruvatos de lantanídeos (III), exceto promécio, e ítrio (III) no estado sólido." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/105707.

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Made available in DSpace on 2014-06-11T19:35:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-02-22Bitstream added on 2014-06-13T19:24:24Z : No. of bitstreams: 1 carvalho_ct_dr_araiq.pdf: 783523 bytes, checksum: 845f90e2b52f8926bba04e0f2219f870 (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Sintetizou-se o ácido 2-metoxicinamalpirúvico (2-MeO-HCP), através da reação de condensação aldólica do 2-metoxicinamaldeído (CH3O-C6H4-(CH)2-CHO), 96 % de pureza com o piruvato de sódio, (Na-

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18

Sumka, Martin. "Nové gelové elektrolyty." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-254469.

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This master´s thesis deals with the properties of gel polymer electrolytes, brief characteristics of other types of electrolytes and materials that are used for preparing polymer electrolytes. The thesis explains the use of the gel electrolytes in practice, the current conduction in the electrolytes and the properties of ionic liquids, and flame retardants. This thesis also focuses on methods of measurement of mechanical properties of gel polymer electrolytes. The practical part is focused on preparation of methacrylate gel electrolytes and their modifications with the use of flame retardant -

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19

Bandarupalli, Praveen Kumar. "Thermal Analysis of Decomposition Reactions of Aspartic and Glutamic Acids in Potassium Chloride Matrix." Youngstown State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1391391780.

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20

Nikolopoulos, Christos. "Mathematical modelling of modulated-temperature differential scanning calorimetry." Thesis, Heriot-Watt University, 1997. http://hdl.handle.net/10399/659.

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21

Kumar, Prateek. "Heat Capacity and Oxidation Kinetic Studies of Fe-Ti Composite Metal Oxide (ITCMO) using Simultaneous Differential Scanning Calorimetry and Thermogravimetric Analysis." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1502723527531035.

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22

Charsley, Edward Leonard. "The application of quantitative differential thermal analysis to the study of pyrotechnic systems." Thesis, University of Salford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358815.

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Carvalho, Cláudio Teodoro de. "Síntese, caracterização e estudo do comportamento térmico dos 2-metoxicinamalpiruvatos de lantanídeos (III), exceto promécio, e ítrio (III) no estado sólido /." Araraquara : [s.n.], 2010. http://hdl.handle.net/11449/105707.

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Orientador: Massao Hionashiro<br>Banca: Lazaro Moscardini D'Assunção<br>Banca: Nedja Suely Fernandes<br>Banca: José Marques Luiz<br>Banca: Salvador Claro Neto<br>Resumo: Sintetizou-se o ácido 2-metoxicinamalpirúvico (2-MeO-HCP), através da reação de condensação aldólica do 2-metoxicinamaldeído (CH3O-C6H4-(CH)2-CHO), 96 % de pureza com o piruvato de sódio, (Na-2-MeO-CP), 99% puro, ambos da Aldrich. A pureza do ácido 2-metoxicinamalpirúvico sintetizado foi determinada por DSC através do pico de fusão em 125 ºC. O ácido 2-metoxicinamalpirúvico foi convertido a uma solução de aproximadamente 0,15

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AQUINO, AFONSO R. de. "Caracterizacao e estudo termoanalitico de clinquer produzido em industrias brasileiras." reponame:Repositório Institucional do IPEN, 1996. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10800.

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Made available in DSpace on 2014-10-09T12:44:08Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:07:00Z (GMT). No. of bitstreams: 1 02948.pdf: 2171704 bytes, checksum: 896d566852d96a5900bc907e2d478a43 (MD5)<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Química - Universidade de São Paulo - IQ/USP

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Butler, Catherine J. "The solidification characteristics of titanium aluminides." Thesis, University of Nottingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294701.

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Pillar, Rachel Joanne, and rachel pillar@flinders edu au. "The Influence of Rolling Oil Decomposition Deposits on the Quality of 55Al-43.4Zn-1.6Si Alloy Coatings." Flinders University. School of Chemistry, Physics and Earth Sciences, 2007. http://catalogue.flinders.edu.au./local/adt/public/adt-SFU20080108.132120.

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Uncoated defects in hot dip metal-coated steel products result from non-wetting of the steel surface by the molten alloy. The occurrence of uncoated defects is highly detrimental to product quality and production efficiency; uncoated defects compromise the appearance and anti-corrosion performance of hot dip metal-coated steel products and causes time delays in the application of subsequent surface treatments. Although many studies have been directed towards evaluating the effect of steel pre-heat temperature and oxidation on the formation of uncoated defects, fewer investigations have analyse

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Phillips, Kent Thomas. "Applications of Thermal and Laser-Based Methods for Monitoring Airborne Particulates in Coal Mines." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/79386.

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The purpose of this thesis is to examine applications of thermal and laser-based methods to monitor airborne particulates in underground coal mines. Specifically, coal and mixed mineral mine dust, as well as, diesel particulate matter (DPM). These particulates have historically, and continue to have, significant health impacts on underground miners. Chapters 1 and 2 of this thesis concentrate on using a novel method of thermogravimetric analysis (TGA) to characterize respirable coal and mixed mineral mine dust and presents the results of this method being applied to samples collected in Appala

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Das, Sudipto. "Wood/Polymeric Isocyanate Resin Interactions: Species dependence." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/28745.

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The performance of polymeric diphenylmethane diisocyanate (PMDI) resin is known to be highly dependent on the wood species. This species dependence may be due to differences in: cure chemistry, interphase morphology, or both of these factors. This study addresses aspects of the cure chemistry and interphase morphology of wood/PMDI bondlines; specifically these effects are compared using two woods: yellow-poplar and southern pine. In this study, the cure chemistry of wood-PMDI system was analyzed with solid state NMR (SSNMR) using wood samples cured with doubly labeled (15N,13C) PMDI resin. Th

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FERMINO, DANILO M. "Estudo das propriedades mecânicas, reológicas e térmicas de nanocompósito de HMSPP (Polipropileno com alta resistência do fundido)com uma betonita brasileira." reponame:Repositório Institucional do IPEN, 2011. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10028.

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Made available in DSpace on 2014-10-09T12:33:59Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:00:53Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP

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Galdo, Antonella. "Kinetic study of the thermal and thermo-oxidative decomposition of spent coffee grounds under inert and oxidative atmospheres." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23617/.

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The growing request of energy by the global population, related to the improvement of life quality, has generated an increase of environmental pollution due to the massive use of fossil fuels. In this context, the development of new technologies may implement the use of biomass as a renewable source of energy and to generate value-added products. Particular interest has been dedicated to the lignocellulosic biomass. Coffee is one of the most popular beverages in the world and the second commodity traded after petroleum. One of his most abundant by-products is the spent coffee grounds (SCG), wh

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Rini, Pietro. "Analysis of differential diffusion phenomena in high enthalpy flows, with application to thermal protection material testing in ICP facilities." Doctoral thesis, Universite Libre de Bruxelles, 2006. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210893.

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This thesis presents the derivation of the theory leading to the determination of the governing equations of chemically reacting flows under local thermodynamic equilibrium, which rigorously takes into account effects of elemental (de)mixing. As a result, new transport coefficients appear in the equations allowing a quantitative predictions and helping to gain deeper insight into the physics of chemically reacting flows at and near local equilibrium. These transport coefficients have been computed for both air and carbon dioxide mixtures allowing the application of this theory to both Earth an

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Tan, Ah Goh. "The combustion of wood, mainly as assessed by fluidised-bed differential thermal analysis, with particular reference to rubber wood." Thesis, University of Canterbury. Chemical and Process Engineering, 1986. http://hdl.handle.net/10092/7729.

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The combustion characteristics of Rubber wood were studied using differential thermal analysis (DTA) carried out in fluidised-beds. Test samples up to 10 mm in diameter and fluidising gas of different oxygen concentrations were used. A number of tropical hardwoods were included in the study for comparison. Prior to the above study, investigations on the thermal behaviour of Rubber wood in an inert environment, in particular, the effect of particle size, were carried out. The particle sizes used ranged from smaller than 150 mesh to 19 mm diameter. The yields of the various degradation products

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TAKAHASHI, ELISA A. N. "Utilização da escória de alumínio na fabricação de argila expandida." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11461.

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Made available in DSpace on 2014-10-09T12:52:10Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:01:02Z (GMT). No. of bitstreams: 0<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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NAKAMURA, GERSON H. de G. "Análise térmica e diagramas de fase dos sistemas LiF-BiFsub(3) e NaF-BiFsub(3)." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10513.

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Made available in DSpace on 2014-10-09T12:41:22Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:06:16Z (GMT). No. of bitstreams: 0<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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SOUZA, CLECIA de M. "Utilização da radiação ionizante na reciclagem de pneus inservíveis de automóvel e sua destinação ambiental adequada." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10613.

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Made available in DSpace on 2014-10-09T12:42:28Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:02:09Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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Jančaříková, Marie. "Testování pryžových těsnících prvků podrobených různým vnějším vlivům." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2016. http://www.nusl.cz/ntk/nusl-240540.

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Diploma thesis studies the effect of temperature (75 and 105 °C) and the effect of 3 kinds of liquids (silicone and hydraulic oil and coolant) at room temperature and at 105 °C on change of the structure of 3 species butadiene-acrylonitrile (NBR) seals (o-ring and two types of bolts). The seals are inspected by the thermogravimetric analysis, differential scanning calorimetry and infrared spectroscopy, the influence of 105 °C on the o-rings is also evaluated in terms of changes in tensile properties. The greatest changes in the composition and structure are observed on o-rings particularly due

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Sjöstrand, Linda. "Method Development for Thermal Stability Analysis by Circular Dichroism : Application to the Abp1p SH3 domain from yeast." Thesis, Linköpings universitet, Kemi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-148286.

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Thermal stability is an important and interesting physical property of proteins. A common method to study it by is circular dichroism (CD) spectroscopy. The aim of this study was to test methods to improve thermal stability analysis by CD spectroscopy. Experiments were performed using the Abp1p SH3 domain from yeast as a model protein. Thermal denaturation was monitored at multiple wavelengths. It was concluded that for data sets of reasonable quality the choice of wavelength does not affect the results. An approach to estimate stability of thermophilic proteins was tested where thermal stabil

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Blomdahl, Emil. "Synthesis and characterization of novel hybrid organic-inorganic materials." Thesis, KTH, Tillämpad fysikalisk kemi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302288.

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Efterfrågan på bättre och mer hållbart material ökar. Mer effektivt material kommer att behövas för att möta den ökande, globala efterfrågan. Hybrida organiska-oorganiska material är en typ av material som har varit av stort intresse nyligen, och kan beskrivas som en typ av material som består av både organiska och oorganiska komponenter. Denna avhandling har fokuserat på hybrida organiska-oorganiska material inspirerade av den klassiska perovskitstrukturen ABX3, där komponent A är en organisk katjon, komponent B är en divalent metalkatjon och komponent X är en anjon. Hybrida organiska-oorgani

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CARVALHO, SABRINA G. de M. "Inclusão e remoção térmica de NaCl, KI e grafite para obtenção de cerâmicas porosas de zircônia estabilizada com ítria." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10553.

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Made available in DSpace on 2014-10-09T12:41:49Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:08:17Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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Jarrett, Colby Lewis. "Quantifying the impact of pump performance, chemical conversion, and material properties on solar hydrogen production." Thesis, Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/54297.

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As renewable energy production becomes more prevalent, the challenge of producing renewable dispatchable fuel for the transportation sector remains unresolved. One promising approach is to produce hydrogen from solar energy with a two step thermochemical cycle which utilizes an oxygen storage material (OSM) to split water through two reversible reactions. Due to the strong coupling between reactor design, operational parameters, and OSM properties, the direct comparison of two OSMs is not straightforward. In order to guide the designs of OSMs for two-step thermochemical hydrogen production, a

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Xi, Yunfei. "Synthesis, characterisation and application of organoclays." Thesis, Queensland University of Technology, 2006. https://eprints.qut.edu.au/16483/1/Yunfei_Xi_Thesis.pdf.

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This thesis focuses on the synthesis and characterisation of organoclays. X-ray diffraction has been used to study the changes in the basal spacings of montmorillonite clay and surfactant-intercalated organoclays. Variation in the d-spacing was found to be a step function of the surfactant concentration. Three different molecular environments for surfactant octadecyltrimethylammonium bromide (ODTMA) within the surface-modified montmorillonite are proposed upon the basis of their different decomposition temperatures. High-resolution thermogravimetric analysis (HRTG) shows that the thermal de

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Xi, Yunfei. "Synthesis, characterisation and application of organoclays." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16483/.

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This thesis focuses on the synthesis and characterisation of organoclays. X-ray diffraction has been used to study the changes in the basal spacings of montmorillonite clay and surfactant-intercalated organoclays. Variation in the d-spacing was found to be a step function of the surfactant concentration. Three different molecular environments for surfactant octadecyltrimethylammonium bromide (ODTMA) within the surface-modified montmorillonite are proposed upon the basis of their different decomposition temperatures. High-resolution thermogravimetric analysis (HRTG) shows that the thermal de

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ALMEIDA, FÁBIO J. M. de. "Obtenção de vidros fosfatos contendo ferro por meio do aquecimento em fornos de microondas." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11460.

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Made available in DSpace on 2014-10-09T12:52:09Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:58:11Z (GMT). No. of bitstreams: 0<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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PINHEIRO, LUCAS B. "Síntese e caracterização de compósitos de NiO-YSZ-CeOsub(2) com tratamento hidrotermal assistido por micro-ondas." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10574.

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Made available in DSpace on 2014-10-09T12:42:08Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:04:41Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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SANTOS, IVANILDO A. dos. "Avaliação dos diagramas de fase do sistema LiF-GdF3-LuF3 utilizando termodinâmica computacional." reponame:Repositório Institucional do IPEN, 2012. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10174.

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Made available in DSpace on 2014-10-09T12:35:37Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:03:58Z (GMT). No. of bitstreams: 1 18221.pdf: 475984 bytes, checksum: d5ed50df9b4585d0998e12d282f7f294 (MD5)<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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Cristofolini, Renato. "Estudo da potencialidade da aplicação do ferro fundido nodular ASTM A536 60-40-18 como materia prima para processos de tixoconformação." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263560.

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Orientador: Maria Helena Robert<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-13T05:19:05Z (GMT). No. of bitstreams: 1 Cristofolini_Renato_D.pdf: 5642775 bytes, checksum: 04967fdc1ef436f81dd6c3fb1fcb52d0 (MD5) Previous issue date: 2009<br>Resumo: Este trabalho analisa a tixohabilidade, a viabilidade de produção de pastas tixotrópicas e as transformações de fase que ocorrem na tixofundição do ferro fundido nodular ASTM A536 60-40-18. A análise da tixohabilidade é feita através de análises térmicas utilizando té

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CHAMBOUN, HASSAN. "Nouveaux phosphates de vanadium, molybdene, niobium et tantale a charpentes mixtes formees d'octaedres mo : :(6) et de tetraedres po::(4)." Caen, 1987. http://www.theses.fr/1987CAEN2030.

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L'etude des systemes v-p-o et mo-p-v-o a permis d'isoler les nouvelles phases vpo::(4), p::(3)v::(12)o::(34), p::(2)mo::(2)v::(4)o::(19) et de la caracteriser par diffraction rx, microscopie electronique, spectroscopie ir et uv, analyse thermique differentielle et thermogravimetrie. Etude structurale sur monocristal de b-nbpo::(5). Les phases b-nbpo::(5), b-tapo::(5) et tavo::(5) apparaissent apparentees a la familles des bronzes a tunnels pentagonaux mptbp(po::(2))::(4) (wo::(3))::(2m) dont ils constitument le terme m = z. E-nbpo::(5) et g-tapo::(5) ont ete isoles et leurs temperatures de tra

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Chan, Hin Chung Stephen. "Co-crystal screening of poorly water-soluble active pharmaceutical ingredients. Application of hot stage microscopy on curcumin-nicotinamide system and construction of ternary phase diagram of fenbufen-nicotinamide-water co-crystal system." Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/4253.

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Curcumin is the major phenolic diarylheptane derivative in Curcuma longa and has been reported to possess pharmacological activities. Unfortunately this compound suffers from poor bioavailability and rapid neutral-alkaline degradation. Co-crystal of curcumin is one option under exploration, motivated by the fact that a number of active pharmaceutical ingredient (API) co-crystals with improved dissolution have recently been synthesized. Hence, co-crystallization technique highlights an alternative means to improve the performance of curcumin. Within our work evidences for a co-crystal was asce

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Franco, Jacome Diego Luis 1986. "Caracterização físico-química das cinzas da palha de cana-de-açúcar através de análises térmicas simultâneas (STA)." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265950.

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Orientador: Waldir Antonio Bizzo<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-24T20:40:56Z (GMT). No. of bitstreams: 1 FrancoJacome_DiegoLuis_M.pdf: 6974773 bytes, checksum: 66b68efde995c3ab7c55a3d28e15cc19 (MD5) Previous issue date: 2014<br>Resumo: A cadeia produtiva da cana-de-açúcar tem focado grande interesse no aproveitamento integral dos seus principais subprodutos: a palha e o bagaço (sendo a palha constituída das porções foliares e ponteiras da cana-de-açúcar). Isto tem sido feito através da mud

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Johnson, Graham Richard. "The Formation and Growth of Marine Aerosols and the Development of New Techniques for their In-situ Analysis." Thesis, Queensland University of Technology, 2005. https://eprints.qut.edu.au/16117/1/Graham_Johnson_Thesis.pdf.

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Marine aerosols have attracted increasing attention over the past 15 years because of their potential significance for global climate modelling. The size distribution of these aerosols extends from super-micrometer sea salt mode particles down through 150 nm accumulation mode particles, 40 nm Aitken mode particles and nucleation mode particles which extend from 25 nm right down to clusters of a few molecules. The process by which the submicrometer modes form and grow and their composition have remained topics of debate throughout this time in large part because of the diff

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