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Dissertations / Theses on the topic 'TG/DTA'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 July 2025

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1

Nunes, Ronaldo Spezia. "Estudo do comportamento térmico de alguns aditivos alimentares por TG/DTG, DTA e DSC." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/75/75132/tde-25082009-161837/.

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Estudos termoanalíticos de alguns aditivos alimentares da classe dos realçadores de sabor foram desenvolvidos visando avaliar sua estabilidade e resistência durante o preparo de alimentos a quente assim como investigar os eventuais intermediários de decomposição que poderiam resultar destes processos. Os sais foram obtidos de fontes industriais ou sintetizados e submetidos à caracterização por análise elementar, espectrometria vibracional na região do infra-vermelho, termogravimetria/termogravimetria derivada, análise térmica diferencial e em alguns casos, calorimetria exploratória diferencial
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2

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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3

Chaushli, Azad. "Beiträge zur Darstellung ternärer Nitridometallate von Übergangsmetallen und Reihenuntersuchungen zur Reaktivität entsprechender Eduktgemenge mittels DTA-TG." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=96174507X.

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4

Pereira, Thereza Mylene de Moura. "Caracteriza??o t?rmica (TG/DTG, DTA, DSC, DSC-fotovisual) de Horm?nios bioid?nticos (estriol estradiol)." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/13478.

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Made available in DSpace on 2014-12-17T14:16:30Z (GMT). No. of bitstreams: 1 TherezaMMP_DISSERT.pdf: 3247575 bytes, checksum: b56626eecb3cf571b5b30d6c0ab92d04 (MD5) Previous issue date: 2013-03-22<br>Bioidentical hormones are defined as compounds that have exactly the same chemical and molecular structure as hormones that are produced in the human body. It is believed that the use of hormones may be safer and more effective than the non-bioidentical hormones, because binding to receptors in the organism would be similar to the endogenous hormone. Bioidentical estrogens have been used in meno
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5

Ramos, Luiz Antonio. "Investigação do comportamento térmico e de polimorfismo do anti-histamínico loratadina." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/75/75132/tde-04082011-143805/.

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O comportamento térmico, a obtenção e caracterização de formas cristalinas do anti-histamínico loratadina foram investigado. A escolha do anti-histamínico loratadina como objeto de estudo resulta do seu interesse farmacológico. A loratadina é a Denominação Comum Internacional (DCI) dada ao etil 4-(8-cloro-5,6-dihidro-11H-benzo[5,6]cicloheptano[1,2-b]piridino-11-ilideno)-1-piperidinocarboxilato, que é um potente antialérgico e anti-histamínicos tricíclico, não-sedativo de ação prolongada. Formas cristalinas foram preparadas e estudadas com vista à identificação de formas polimórficas. Os solven
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6

Carmo, Ana Carolina Paiva. "Investiga??o da estabilidade t?rmica e das propriedades el?tricas do TiO2 em fun??o da dopagem com Ce(SO4)2." Universidade Federal do Rio Grande do Norte, 2008. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17588.

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Made available in DSpace on 2014-12-17T15:41:40Z (GMT). No. of bitstreams: 1 AnaCPC.pdf: 1447913 bytes, checksum: 8f65c2f6df911f6db297163eb551fb69 (MD5) Previous issue date: 2008-02-29<br>Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico<br>The metalic oxides have been studies due to differents applications as materials semiconductor in solar cells, catalysts, full cells and, resistors. Titanium dioxide (TiO2) has a high electric conductivity due to oxygen vacancies. The Ce(SO4)2.2H2O doped samples TiO2 and TiO2 pure was obtained sol-gel process, and characterized by X-ray diff
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7

Bertolazi, Vanessa Thoma. "Concentração de argilominerais 2:1 em solos subtropicais." Universidade Federal de Santa Maria, 2013. http://repositorio.ufsm.br/handle/1/5566.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The 2:1 expandable clay minerals have high importance when present in soil, even in small amount, as in the case of soil with a high degree of secondary alteration. The study of these minerals is essential to understanding the physical and chemical behavior of soils, however, the techniques have not always permitted their suitable concentration, in order to facilitate their study. Therefore, this study aimed to analyze the concentration of phyllosilicates clay minerals with 2:1 structure through the technique of selective dissoluti
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8

Dulina, I., L. Klochkov, M. Danilenko, and A. Ragulya. "Synthesis of Ni/NiO Nanopowder by Thermal Decomposition of Nickel Acetate Amine." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/34819.

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Ni/NiO nanopowders have been synthesized using thermal decomposition of nickel acetate hexaammine in air. Obtained powders have been characterized by IR-spectroscopy, XRD and TG, DTA, DTG and HR TEM. Thermal decomposition of nickel ammine complexes occurs with forming nickel hydroxide, carbonate and hydroxocarbonate ammines precursors. Mean particle size of nickel and nickel oxide phases in powders depends on temperature. In the temperature range from 350 to 500 degrees Celsius the particle size of nickel oxide has grown from 5 to 25 nm and nickel from 50 to 55 nm. Particle size of 5 nm
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9

Yahya, Mahzoun. "Heating Value and Energy Recovery Potential of Sewage Sludge and Suspended Solids in Municipal Wastewater Treatment Plant." Kyoto University, 2018. http://hdl.handle.net/2433/232029.

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10

Porto, Dayanne Lopes. "Contribui??es sobre estudos t?rmicos (TG/DTG, DTA, DSC e DSC-Fotovisual) da rifampicina e seus principais produtos de degrada??o." Universidade Federal do Rio Grande do Norte, 2014. http://repositorio.ufrn.br:8080/jspui/handle/123456789/13506.

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Made available in DSpace on 2014-12-17T14:16:37Z (GMT). No. of bitstreams: 1 DayanneLP_DISSERT.pdf: 9773593 bytes, checksum: c2be9b4f3b701218666100df5b460f30 (MD5) Previous issue date: 2014-03-24<br>Since its synthesis over 48 years rifampicin has been extensively studied. The literature reports the characterization of thermal events for rifampicin in nitrogen atmosphere, however, no characterization in synthetic air atmosphere. This paper aims to contribute to the thermal study of rifampicin through thermal (TG / DTG, DTA, DSC and DSC - FOTOVISUAL ) and non-thermal (HPLC, XRPD , IR - FTIR ,
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11

Dulina, I. O., T. F. Lobunets, L. O. Klochkov, and A. V. Ragulya. "Synthesis of Ni/NiO Nanosize Powders with Different Phase Ratio by Thermal Decomposition of Nickel Acetate Amines." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35125.

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Ni/NiO nanopowders with different phase ratio have been prepared using thermal decomposition of nickel acetate ammine complexes containing various ammonia content in air at the temperature range 300 – 500 °C. Obtained powders have been characterized by IR-spectroscopy, XRD and TG, DTA, DTG, TEM, laser granulometry and adsorption-structural method. Thermal decomposition of nickel ammine complexes occurred with forming nickel hydroxide, carbonate and hydroxocarbonate ammines precursors. Composition of the precursors depended on temperature and ammonia content in initial complex. Mean crystallite
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12

林俊豪. "TG-DTA-IR在含揮發性成分中藥制劑質量分析和控制中的應用". HKBU Institutional Repository, 2011. http://repository.hkbu.edu.hk/etd_ra/1329.

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13

Siqueira, Geisa Liandra de Andrade de. "EFEITO DO TRATAMENTO ÁCIDO EM MEIO AQUOSO E ALCOÓLICO NA MODIFICAÇÃO DO AMIDO DE PINHÃO (Araucaria angustifolia)." Universidade Estadual de Ponta Grossa, 2017. http://tede2.uepg.br/jspui/handle/prefix/2667.

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Submitted by Angela Maria de Oliveira (amolivei@uepg.br) on 2018-11-06T17:35:07Z No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Geisa Liandra.pdf: 3414564 bytes, checksum: b9fc4d1a56d56c9c5c38f3f88871810e (MD5)<br>Made available in DSpace on 2018-11-06T17:35:07Z (GMT). No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Geisa Liandra.pdf: 3414564 bytes, checksum: b9fc4d1a56d56c9c5c38f3f88871810e (MD5) Previous issue date: 2017-02-09<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Arau
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14

Kalina, Lukáš. "Fosfátová pojiva." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2008. http://www.nusl.cz/ntk/nusl-216349.

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The work deals with the preparation and study of polyphosphate composites. Aluminum phosphates provide some unusual properties like high-heat resistance in terms of inorganic binders. The addition of chromium in the form of Cr2O3 or directly the bond with the aluminum-chromium-phosphate can improve the properties of this binder. Highly viscous Al2Cr(H2PO4)9 and Al3Cr(H2PO4)12 binders were prepared by dissolving Al(OH)3 and CrO3 in 85% phosphoric acid, and mixed with Al2O3 and Cr2O3 fillers. The composites were cured in the furnace at 150 °C for 24 h under pressure of 10 MPa. During the anneali
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15

Chaushli, Azad [Verfasser]. "Beiträge zur Darstellung ternärer Nitridometallate von Übergangsmetallen und Reihenuntersuchungen zur Reaktivität entsprechender Eduktgemenge mittels DTA-TG / von Azad Chaushli." 2001. http://d-nb.info/96174507X/34.

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16

Ali, F., I. Ali, H. Bibi, A. Malik, Ben Stern, and Derek J. Maitland. "Qualitative and Quantitative Assessment of Fatty Acids of Buddleja asiatica by GC-MS." 2013. http://hdl.handle.net/10454/10110.

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No<br>To analyze the fatty acid contents of Buddleja asiatica Lour, both the non-volatile oil and fat obtained from the n-hexane soluble sub-fraction were subjected to GC/MS using BSTFA (N,O-bis(trimethylsilyl) trifloroacetamide) derivatization. The oil showed the presence of six fatty acids including palmitic acid (46.75 %), linoleic acid (37.80 %), stearic acid (10.98 %), arachidic acid, margaric acid and lignoceric acid (< 3 %). Analysis of the fat revealed nine fatty acids including lignoceric acid (43.12 %), behenic acid (26.39 %), arachidic acid (9.29 %) and stearic acid (5.3 %). Cerotic
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