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Dissertations / Theses on the topic 'Dispersed materials'

Author: Grafiati
Published: 28 May 2022
Last updated: 31 July 2025

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1

Liu, Eric Chun Yeung. "Nano dispersed materials." Thesis, University of Manchester, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488774.

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2

Vutetakis, David George. "Electrochemical oxidation of carbonaceous materials dispersed in molten carbonate /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487264603217609.

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3

Haidemenopoulos, Gregory N. "Dispersed-phase transformation toughening in ultrahigh-strength steels." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/14564.

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4

Kemiklioglu, Emine. "Polymer Stabilized and Dispersed Blue Phases." Kent State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=kent1409153158.

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5

Chan, Philip Kwok-Kiou. "Formation and performance of polymer dispersed liquid crystal films." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ36963.pdf.

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6

Lee, Woo Young. "Chemical vapor deposition of dispersed phase ceramic composites." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/11857.

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7

Kuroda, Yukio. "Kinetics of deformation-induced transformation of dispersed austenite in two alloy systems." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/52893.

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8

Mulderig, Andrew J. "Structure, Interactions and Aggregation Thermodynamics of Dispersed Mass-Fractal Nanoparticles." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1523629055773887.

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9

Owen, Aaron. "ASSISTED DEVELOPMENT OF MESOPHASE PITCH WITH DISPERSED GRAPHENE AND ITS RESULTING CARBON FIBERS." UKnowledge, 2018. https://uknowledge.uky.edu/me_etds/126.

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The efficacy of dispersed reduced graphene oxide (rGO) as a nucleation site for the growth of mesophase in an isotropic pitch was investigated and quantified in this study. Concentrations of rGO were systematically tested in an isotropic petroleum and coal-tar pitch during thermal treatments and compared to pitch without rGO. The mesophase content of each thermally treated pitch was quantified by polarized light point counting. Further characterization of softening temperature and insolubles were quantified. Additionally, the pitches with and without rGO were melt spun, graphitized, and tensil
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10

Севостьянов, І. В. "Процеси і машини для потокового віброударного фазового розділення вологих дисперсних матаріалів". Thesis, Видавництво СумДУ, 2012. http://essuir.sumdu.edu.ua/handle/123456789/25628.

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11

Hicks, Sarah Elizabeth. "Polymer-Dispersed and Polymer-Stabilized Liquid Crystals." Kent State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=kent1333417859.

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12

Zhang, Hailiang. "Wavelength Tunable Devices Based on Holographic Polymer Dispersed Liquid Crystals." Kent State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=kent1203610126.

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13

JUSTICE, RYAN SCOTT. "INTERFACE MORPHOLOGY AND PHASE SEPARATION IN POLYMER DISPERSED LIQUID CRYSTAL (PDLC) COMPOSITES." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1163783056.

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14

Rosén, Tomas. "Angular dynamics of non-spherical particles in linear flows related to production of biobased materials." Doctoral thesis, KTH, Linné Flow Center, FLOW, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-193124.

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Dispersed particle flows are encountered in many biological, geophysical but also in industrial situations, e.g. during processing of materials. In these flows, the particles usually are non-spherical and their angular dynamics play a crucial role for the final material properties. Generally, the angular dynamics of a particle is dependent on the local flow in the frame-of-reference of this particle. In this frame, the surrounding flow can be linearized and the linear velocity gradient will determine how the particle rotates. In this thesis, the main objective is to improve the fundamental kno
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15

Kuriakose, Maju. "Thermal investigations on polymer dispersed liquid crystal composites and thermo-electric polymer composites using photothermal techniques." Phd thesis, Université du Littoral Côte d'Opale, 2013. http://tel.archives-ouvertes.fr/tel-00982712.

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Primarily, newly developed, high sensitive and accurate methods for thermal characterization of liquids using photothermal radiometry are presented. Two experimental configurations are suggested, tested and validated with usual liquid materials. These methods are used to study polymer dispersed liquid crystal samples. Dynamic thermal properties of samples are analysed verses amplitude varying applied electric field with constant frequency as well as versus frequency varying electric field with constant amplitude. Our results clearly show the thermal properties of the samples are prone to depol
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16

Pallikonda, Mahesh Kumar Pallikonda. "FORMING A METAL MATRIX NANOCOMPOSITE (MMNC) WITH FULLY DISPERSED AND DEAGGLOMERATED MULTIWALLED CARBON NANOTUBES (MWCNTs)." Cleveland State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=csu1503937490966191.

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17

Guerra, José de Los Santos. "Dispersão dielétrica em materiais ferroelétricos." Universidade Federal de São Carlos, 2004. https://repositorio.ufscar.br/handle/ufscar/4944.

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Made available in DSpace on 2016-06-02T20:15:25Z (GMT). No. of bitstreams: 1 TeseJSG.pdf: 1135396 bytes, checksum: b3e53ebb2a7e53dbbd718828cf88d769 (MD5) Previous issue date: 2004-12-13<br>In the last decades, the high frequency dielectric response has been one of the most studied issues in the ferroelectricity area. The main dielectric characteristic is the strong dependence of the dielectric parameters (real and imaginary component of the dielectric permittivity) with the measuring frequency (dielectric dispersion). Among them, the perovskite-structured family, such as barium titanate (BaT
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18

Susin, Samuel Brando. "Avaliação das técnicas de dispersão mecânica e ultrassônica de nanotubos de carbono de paredes múltiplas em resina epóxi." reponame:Repositório Institucional da UCS, 2010. https://repositorio.ucs.br/handle/11338/572.

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Com o intuito de identificar dentre os métodos de dispersão mecânica e por sonificação, qual apresentaria melhor desempenho na promoção do desemaranhamento e dispersão de nanotubos de carbono em resina epóxi, nesse trabalho foram elaborados compósitos nanotubos/epóxi. Os nanocompósitos obtidos foram submetidos a avaliações de microscopia eletrônica de varredura e de transmissão, além de investigações na cinética de cura a partir de dados de calorimetria diferencial exploratória. Os resultados encontrados indicam que o nível de dispersão das amostras do processo de dispersão mecânica foi melhor
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19

Antunes, Márjore. "Produção, dispersão e consolidação de zircônia obtida a partir do tungstato de zircônio." reponame:Repositório Institucional da UCS, 2016. https://repositorio.ucs.br/handle/11338/1156.

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O presente trabalho tem por objetivo principal explorar a produção, a dispersão e a consolidação de zircônia (óxido de zircônio – ZrO2), em sua forma hidratada, obtida a partir do tungstato de zircônio (ZrW2O8), em meio alcalino e em condições de temperatura de até 100°C. A produção dos materiais particulados foi realizada sob diferentes condições experimentais (concentração de NaOH, tempo e temperatura) de modo a investigar como as características cristalográficas, morfológicas, químicas e térmicas dos pós produzidos são afetadas e, com base nesses resultados, buscou-se inferir o mecanismo pe
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20

Gratclová, Kamila. "Vývoj kompozitního materiálového systému se zaměřením na matrici pro extrémní podmínky." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240388.

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The thesis deals with composite systems, with a focus on matrix resistant to extreme conditions. The aim of this work was to research and development matrix, resistant to high temperatures, typical in case of fire. Used theoretical knowledge were realized with subsequent laboratory research. Attention was paid matrices based binder mixed with any alkali activation of alternative raw materials and geopolymers. Scattered reinforcement featured polypropylene fibers. The subject of the practical part of the two alternatives, including a matrix based on basic ingredients - cement, alternative raw m
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21

Zaťko, Petr. "Vliv rozptýlené výztuže na průběh zrání polymercementových hmot." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265336.

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The diploma thesis is focused on polymercement materials with dispersed reinforcement. The aim of this work is development of suitable polymercement mixture and monitoring of the impact of dispersed reinforcement on the course of maturation of these materials and physico-mechanical properties. The effect of high temperatures on the properties of the mortar is also examined. Emphasis is placed on the use of alternative resources and byproducts. Mixed binder of cement and slag and admixture of microsilica was used. Recycled cellulose was used as dispersed reinforcement and was compared with comm
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22

Yang, Xinyuan. "Carboxymethyl Cellulose Surface Treatment Method to Disperse Carbon Nanotubes in Smart Cementitious Materials." Thesis, North Dakota State University, 2019. https://hdl.handle.net/10365/31741.

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An innovative surface treatment method was proposed using carboxymethyl cellulose (CMC) to surface-treat carbon nanotubes (CNTs) for a consistent dispersion in cementitious materials to achieve high force detection sensitivity. This CMC surface treatment method was compared with two traditional methods, direct mixing and surfactant surface treatment, to validate dispersion effectiveness. Experimental results demonstrated that CMC and CNTs combined can increase force sensitivity of the smart cementitious material more than six times compared with direct mixing and more than three times compared
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23

Velho, Fernanda da Costa. "Nanocápsulas formadas por dispersão aquosa de poliuretano." Pontifícia Universidade Católica do Rio Grande do Sul, 2011. http://hdl.handle.net/10923/3243.

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Made available in DSpace on 2013-08-07T18:53:54Z (GMT). No. of bitstreams: 1 000431128-Texto+Parcial-0.pdf: 838056 bytes, checksum: 2f4ab7817bd95a0567306c4e09ec03dd (MD5) Previous issue date: 2011<br>Polymeric nanoparticles have been developed as an important strategy for the release of conventional drugs, proteins, vaccines and more recently nucleotides. The studies aiming to obtain polymeric nanoparticles with a programmed and controlled release system is of great importance. The main goal of this work was to produce polyurethane-oil nanocapsules (PU-oil) through of aqueous polyurethane di
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24

Filomeno, Cleber Lopes. "Reatividade e fenômenos eletrocinéticos de nanopartículas magnéticas carregadas, no seio da dispersão aquosa e na interface eletrodo/dispersão." reponame:Repositório Institucional da UnB, 2011. http://repositorio.unb.br/handle/10482/10998.

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Dissertação (mestrado)—Universidade de Brasília, Instituto de Química, 2011.<br>Submitted by Jaqueline Ferreira de Souza (jaquefs.braz@gmail.com) on 2012-07-23T15:05:10Z No. of bitstreams: 1 2011_CleberLopesFilomeno.pdf: 2905325 bytes, checksum: 6b30a96fc6cb83faaad284b86dccbdc4 (MD5)<br>Approved for entry into archive by Jaqueline Ferreira de Souza(jaquefs.braz@gmail.com) on 2012-07-23T15:05:32Z (GMT) No. of bitstreams: 1 2011_CleberLopesFilomeno.pdf: 2905325 bytes, checksum: 6b30a96fc6cb83faaad284b86dccbdc4 (MD5)<br>Made available in DSpace on 2012-07-23T15:05:32Z (GMT). No. of bitstreams: 1
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25

Chequer, Farah Maria Drumond. "Avaliação da capacidade de dano ao material genético pelos azo corantes Disperse Red 1, Disperse Red 13 e Disperse Orange 1: identificação e análise do potencial mutagênico dos seus produtos de biotransformação." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/60/60134/tde-28032012-101528/.

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Atualmente, a utilização de azo corantes por vários ramos industriais constitui um problema ambiental e de saúde pública, tendo em vista o lançamento de quantidades elevadas para o meio ambiente e a falta de dados toxicológicos a cerca dos corantes e de seus metabólitos gerados, principalmente, após os processos de oxidação e redução. Nosso grupo realizou ensaios com micronúcleos em linfócitos humanos e em células HepG2 e ensaio de mutagenicidade com Salmonella typhimurium, demonstrando que os azo corantes Disperse Red 1, Disperse Red 13 e Disperse Orange 1 são mutagênicos para os diferentes p
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26

Olea, Mejía Oscar Fernando Brostow Witold. "Micro and nano composites composed of a polymer matrix and a metal disperse phase." [Denton, Tex.] : University of North Texas, 2007. http://digital.library.unt.edu/permalink/meta-dc-5135.

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27

Alves, Claudia Marins. "Modelos estocásticos para tratamento da dispersão de material particulado na atmosfera." Laboratório Nacional de Computação Científica, 2006. https://tede.lncc.br/handle/tede/62.

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Made available in DSpace on 2015-03-04T18:50:49Z (GMT). No. of bitstreams: 1 tese.pdf: 5590910 bytes, checksum: a89ccd96ade2b696f0e5b9163dc31bf5 (MD5) Previous issue date: 2006-11-13<br>Lagrangian stochastic models are a largely used tool in the study of passive substances dispersion inside the Atmospheric Boundary Layer. Its application is related to the trajectory computation of thousands of particles, that numerically simulate the dispersion of suspense substances in the atmosphere. In this study, the basic concepts related to the Lagrangian stochastic modelling are presented and discu
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28

Oliveira, Vitória Mariana Silva de. "Síntese e caracterização de dispersões aquosas de poliuretano." Pontifícia Universidade Católica do Rio Grande do Sul, 2008. http://hdl.handle.net/10923/3358.

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Made available in DSpace on 2013-08-07T18:54:55Z (GMT). No. of bitstreams: 1 000401347-Texto+Completo-0.pdf: 3599370 bytes, checksum: e5c856d0ff54d52fa051b716ca2c0ef6 (MD5) Previous issue date: 2008<br>Aqueous polyurethane dispersions (PUDs) have been used in the area of coatings, adhesives, sealants, among others. In the preparation these systems there are several variables, such as: the nature of raw materials, the NCO/OH rate, the ionic groups contents, the degrees of neutralization and chain extension and the type of process that can change features such as molar mass (MM), viscosity ( )
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29

SIMOES, ANGELA V. "Desempenho sob irradiacao de combustiveis a dispersao de MTR." reponame:Repositório Institucional do IPEN, 1993. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10332.

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Made available in DSpace on 2014-10-09T12:37:26Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:03:22Z (GMT). No. of bitstreams: 1 02035.pdf: 5072972 bytes, checksum: 35b1e5339204e26ba5bab9ad7bcf8a76 (MD5)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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30

Cano, Sarabia Antonia María. "Preparación de materiales moleculares nanoparticulados y dispersos -vesículas y microemulsiones- empleando fluidos comprimidos." Doctoral thesis, Universitat Autònoma de Barcelona, 2009. http://hdl.handle.net/10803/3302.

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A día de hoy, la nanotecnología es considerada por muchos como uno de los campos de investigación más importantes de la próxima década, ya que ésta tendrá un gran impacto dentro de los campos de la biología, farmacología y medicina. En particular, la medicina se aprovechará de la generación de nuevos vehículos de transporte de moléculas activas de tamaño nanométrico para el diagnostico y tratamiento de muchas enfermedades. Concretamente, vesículas, nanopartículas y mícelas constituidas por materiales inteligentes están siendo actualmente estudiadas para la liberación controlada de compuesto tó
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31

Delgado, Eliana Isidorina Aqueveque Reydet de. "Determinação experimental de coeficiente de dispersão para injeção de nitrogenio." [s.n.], 2001. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263350.

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Orientador: Antonio Claudio de França Correa<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica e Instituto de Geociencias<br>Made available in DSpace on 2018-07-31T14:53:12Z (GMT). No. of bitstreams: 1 Delgado_ElianaIsidorinaAquevequeReydetde_D.pdf: 13123395 bytes, checksum: 86342412b0dccff64b6ed4a32ffc7494 (MD5) Previous issue date: 2001<br>Resumo: O fenômeno da dispersão de um fluido dentro de outro tem sido amplamente estudado. Não obstante, ainda fica uma grande área pouco explorada no campo de escoamento em meios porosos, onde as propriedades da r
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32

Tissot, Rita Clarice Machado. "Estudo da dispersão de material particulado (PTS), emitido pela Usina Termelétrica de Charqueadas." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/61680.

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O Objetivo deste trabalho é estudar a dispersão do poluente material particulado (PTS), na região da Usina Termelétrica de Charqueadas, localizada no município de Charqueadas, utilizando a modelagem numérica ( mais especificamente o modelo ISCST- Industrial Source Complex Term – Short Term ) Esse modelo de dispersão utilizado é recomendado pela EPA ( Environmental Protection Agency ) para tratamento da dispersão de poluentes emitidos por fontes industriais como refinarias,termelétricas, industrias siderúrgicas, etc. Neste estudo, os resultados foram simulados pelo modelo para o ano de 2005 com
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33

Burk, David Edward. "Forward model calculations for determining isotopic compositions of materials used in a radiological dispersal device." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2366.

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In the event that a radiological dispersal device (RDD) is detonated in the U.S. or near U.S. interests overseas, it will be crucial that the actors involved in the event can be identified quickly. If irradiated nuclear fuel is used as the dispersion material for the RDD, it will be beneficial for law enforcement officials to quickly identify where the irradiated nuclear fuel originated. One signature which may lead to the identification of the spent fuel origin is the isotopic composition of the RDD debris. The objective of this research was to benchmark a forward model methodology for predic
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34

Olea, Mejia Oscar Fernando. "Micro and nano composites composed of a polymer matrix and a metal disperse phase." Thesis, University of North Texas, 2007. https://digital.library.unt.edu/ark:/67531/metadc5135/.

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Low density polyethylene (LDPE) and Hytrel (a thermoplastic elastomer) were used as polymeric matrices in polymer + metal composites. The concentration of micrometric (Al, Ag and Ni) as well as nanometric particles (Al and Ag) was varied from 0 to 10 %. Composites were prepared by blending followed by injection molding. The resulting samples were analyzed by scanning electron microscopy (SEM) and focused ion beam (FIB) in order to determine their microstructure. Certain mechanical properties of the composites were also determined. Static and dynamic friction was measured. The scratch resistanc
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35

Katzer, Jacek. "Special waste fine aggregate concrete modified by silica fume and dispersed reinforcement : doctoral dissertation." Rozprawa doktorska, [s.n.], 1999. http://dlibra.tu.koszalin.pl/Content/1220.

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36

Velho, Fernanda da Costa. "Nanoc?psulas formadas por dispers?o aquosa de poliuretano." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2011. http://tede2.pucrs.br/tede2/handle/tede/3177.

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Made available in DSpace on 2015-04-14T13:58:42Z (GMT). No. of bitstreams: 1 431128.pdf: 838056 bytes, checksum: 2f4ab7817bd95a0567306c4e09ec03dd (MD5) Previous issue date: 2011-03-03<br>As nanopart?culas polim?ricas t?m sido desenvolvidas como uma importante estrat?gia para libera??o de f?rmacos convencionais, prote?nas, vacinas e, mais recentemente nucleot?deos. O estudo visando obter nanopart?culas polim?ricas com um sistema de libera??o programado e controlado ? de extrema relev?ncia. Este trabalho teve como objetivo a produ??o de nanoc?psulas de poliuretano-?leo (PU?leo) atrav?s de disp
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Teeuw, Dirk Herbert Johan. "Engineering ceramics and thermal stresses." [S.l. : [Groningen] : s.n.] ; [University Library Groningen] [Host], 1997. http://irs.ub.rug.nl/ppn/164402217.

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Larraguibel, Quiñones Alfonso Tomás. "Materiales reactivos locales para un reactivo tipo DAS (Dispersed Alkaline Substrate) a utilizar en sistemas de tratamiento pasivo en Chile." Tesis, Universidad de Chile, 2017. http://repositorio.uchile.cl/handle/2250/150695.

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Geólogo<br>La presencia de aguas contaminadas es un problema medioambiental que toma cada vez más importancia en el mundo globalizado. En particular, la industria minera interviene el medioambiente de formas diversas, siendo una de ellas el cambio de condiciones de minerales que eventualmente generan drenajes ácidos mineros (AMD). Por esta razón, se hace esencial tratar las aguas ácidas de forma adecuada y sustentable. Dentro de este marco, el método DAS (sustrato disperso alcalino, en inglés) es una muy buena alternativa para purificar aguas ácidas, al combinar un material inerte de grano gr
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39

Hutchinson, Jesson. "Handheld gamma-ray spectrometry for assaying radioactive materials in lungs." Thesis, Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-11102005-164303/.

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Bragança, Fabio do Carmo. "Nanocompositos polimericos com argila preparados a partir de dispersões aquosas : efeito dos contra-ions e auto-adesão." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/250327.

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Orientador: Fernando Galembeck<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-08-11T02:26:13Z (GMT). No. of bitstreams: 1 Braganca_FabiodoCarmo_D.pdf: 5432342 bytes, checksum: bed10dd45e0418cfb0468e2a4a0df2ae (MD5) Previous issue date: 2008<br>Resumo: Este trabalho mostra a influência das interações eletrostáticas nas propriedades físicas e morfológicas de nanocompósitos poliméricos com argila preparados a partir de dispersões aquosas, e as características estruturais de laminados nanoestruturados autoadesivos preparados com
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Verges, Afonso Santos. "Correção da dispersão em sinais do teste dinamico de materiais, com elevadas taxas de deformação." [s.n.], 2001. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264984.

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Orientador : Paulo R. G. Kurka<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-07-31T18:24:51Z (GMT). No. of bitstreams: 1 Verges_AfonsoSantos_D.pdf: 3891256 bytes, checksum: 75175f48df80da40d5b68c937e525146 (MD5) Previous issue date: 2001<br>Resumo: Esta é uma contribuição ao problema de correção da dispersão que ocorre na região de deformação plástica da curva de tensão-deformação obtida no teste com a barra de pressão Split Hopkinson Pressure Bar (SHPB) ou, teste de compressão com altas taxas de deformação. Util
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Tessier, Lorraine. "GREFFAGE DE FILMS ORGANIQUES PAR POLYMERISATION RADICALAIRE ÉLECTRO-AMORCEE EN MILIEU AQUEUX DISPERSE." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2009. http://tel.archives-ouvertes.fr/tel-00462948.

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Découvert en 2006 au Laboratoire de Chimie des Surfaces et Interfaces (CEA Saclay), le procédé de Surface Electroinitiated Emulsion Polymerization (SEEP) est une nouvelle technique électrochimique de greffage covalent de films polymères fins sur des surfaces conductrices ou semi-conductrices à partir de solutions aqueuses, et ce, quelle que soit la solubilité du monomère dans l'eau. Son principe repose sur une polymérisation radicalaire électro-amorcée en milieu aqueux dispersé via la réduction de sels d'aryldiazonium. Sa mise en oeuvre et le processus réactionnel impliqué résultent de la comb
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Ecco, Luiz Gustavo. "Efeito do surfactante nas propriedades fisico-quimicas de blendas TPU/PPy." reponame:Repositório Institucional da UFSC, 2012. http://repositorio.ufsc.br/xmlui/handle/123456789/95923.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnologico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2011<br>Made available in DSpace on 2012-10-26T07:10:51Z (GMT). No. of bitstreams: 1 289494.pdf: 1704220 bytes, checksum: 8ee0d12a8e75210ce6cdc42ac15abc6f (MD5)<br>O desenvolvimento de blendas poliméricas semicondutoras tem impulsionado avanços tecnológicos e industriais nas últimas décadas, sobretudo no setor eletroeletrônico. O polipirrol (PPy) é um polímero intrinsecamente condutor (PIC) que tem sido incorporado em várias matrize
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LOPES, T. R. "Ressonância magnética nuclear aplicada ao estudo de óxidos de alumínio nanoestruturados dispersos em materiais carbonosos porosos." Universidade Federal do Espírito Santo, 2013. http://repositorio.ufes.br/handle/10/7446.

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Made available in DSpace on 2018-08-01T22:29:38Z (GMT). No. of bitstreams: 1 tese_6419_.pdf: 2750220 bytes, checksum: 6e03c2ba67680937d08def36ecf10378 (MD5) Previous issue date: 2013-04-02<br>Este trabalho é dedicado ao estudo de materiais carbonosos porosos contendo partículas dispersas de óxidos e/ou hidróxidos de alumínio, tendo como principal ferramenta a técnica de ressonância magnética nuclear (RMN) no estado sólido. Esses materiais possuem interesse para aplicações na remoção de íons fluoreto contidos em água, na adsorção de amônia em fase gasosa e como suportes de catalisadores. As a
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Andrade, Toni Carvalho de. "Estudo da granulação por solidificação de materiais fundidos em leito fluidizado utilizando dispersão sólida de indometacina." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/60/60137/tde-29072009-115330/.

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A preparação de partículas pela técnica de granulação por solidificação de material fundido em leito fluidizado tem se destacado no âmbito da indústria farmacêutica. As vantagens do uso deste método têm atraído muitos pesquisadores para aprimorar e colocar em prática tal técnica de preparo. A principal vantagem deste processo é dispensar o uso de solventes e diminuir o tempo de preparo dos granulados para compressão. O objetivo do presente trabalho foi o desenvolvimento e estudo desta técnica de granulação, usando a lactose tipo spray-dried como substrato e como agente aglutinante uma dispersã
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Gómez, Ana Maria Mosquera. "Modelagem da dispersão de material particulado na atmosfera a partir de fontes estacionárias utilizando fluidodinâmica computacional." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/3/3137/tde-24102017-151559/.

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Neste trabalho propõe-se uma análise da dispersão de material particulado gerado por fontes estacionárias, aplicando ferramentas de Fluidodinâmica Computacional (em inglês Computatonal Fluid Dynamics, CFD), usando um modelo Euleriano para o escoamento e Lagrangeano para as partículas, em estado estacionário no software Fluent. A verificação da modelagem é apresentada em duas sessões, a primeira compreende o estudo do escoamento atmosférico em condições de estabilidade neutra incluindo os efeitos das heterogeneidades do terreno, no caso, um monte de 126m de altura em escala real. Foram comparad
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Löfving, Axel. "The Dispersal of Gold : Material and Figural Traits of the Gold Foil Figures from Västra Vång." Thesis, Södertörns högskola, Arkeologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-41584.

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Gold Foil Figures or guldgubbar (henceforth GFFs) are precious metal artefacts from the Scandinavian Late Iron Age. This master's essay offers a new approach to GFFs. As opposed to the established understanding of GFFs as representational images with real or mythic referents, belonging to an aristocratic milieu, this essay instead attends to GFFs in terms of their material and Figural traits. The material for this study consists if 42 GFFs from the find site of Västra Vång, Blekinge, Sweden. A comprehensive presentation of this artefact material is a secondary aim of this essay. With the aid o
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Záruba, Jiří. "Vývoj požárně odolných správkových malt s jemnozrnným plnivem." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227280.

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The diploma thesis is focused on fire-resistant repair mortar with fine-grained filler. The aim of this work is the research and development of fine-grained Mortars resistant to high temperatures, which are characteristic at the beginning of the fire. The theoretical knowledge with subsequently realized laboratory verification was used. At-tention was paid to the masses based on the mixed binder comprising cement and blast furnace slag, respectively. high-temperature ash. Cellulose fibres were used as the dis-persed reinforcement. Two kinds of aggregate were assessed - fly ash agloporit and am
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Oliveira, Amanda Dantas de. "Dispersão seletiva de argila montmorilonita em blendas poliméricas de PA6/ABS." Universidade Federal de São Carlos, 2009. https://repositorio.ufscar.br/handle/ufscar/843.

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Made available in DSpace on 2016-06-02T19:12:12Z (GMT). No. of bitstreams: 1 3787.pdf: 6482564 bytes, checksum: 22646bf792c17f5ba5c86bd4182c9b34 (MD5) Previous issue date: 2009-08-25<br>Universidade Federal de Sao Carlos<br>For some applications toughening of polyamide is important. This can be accomplished through the addition of an elastomeric phase to the polyamide matrix with the drawback of a reduction in the stiffness and strength of the material. Several studies lately have focused on the modification of polyamide matrix with the purpose of obtaining a balance between toughness and st
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Parucker, Moisés Luiz. "Desenvolvimento de materiais compósitos de baixo coeficiente de atrito com partículas de lubrificante sólido dispersas em matriz metálica a base de níquel." Florianópolis, SC, 2008. http://repositorio.ufsc.br/xmlui/handle/123456789/91840.

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Tese (Doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Ciência e Engenharia de Materiais<br>Made available in DSpace on 2012-10-24T03:05:35Z (GMT). No. of bitstreams: 1 261822.pdf: 6652764 bytes, checksum: 355bdfcac388b0b18f82775e8465066a (MD5)<br>O objetivo deste trabalho foi o desenvolvimento de compósitos autolubrificantes de níquel utilizando lubrificante sólido como 2ª fase. O trabalho foi dividido em 4 etapas. Na primeira etapa foi realizada o desenvolvimento de ligas de níquel sinterizadas utilizando Cr, Al, Si, P, W, Fe e C como ele
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