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Dissertations / Theses on the topic 'Spray application'

Author: Grafiati

Published: 4 June 2021

Last updated: 19 February 2023

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1

Costa, JanaÃna de Paula da. "Shrimp powder obtained by spray dryer: characteristics and application." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15698.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>A maior necessidade por produtos de conveniÃncia, fÃceis de preparar, motivada pelo novo estilo de vida e, ainda, a invasÃo das prateleiras por produtos estrangeiros de alta qualidade e diversificaÃÃo, vÃm modificando o tradicional consumidor de alimentos. O objetivo desse trabalho foi obter camarÃo em pÃ por meio da aplicaÃÃo do processo de spray dryer, assim como determinar sua composiÃÃo centesimal, caracterÃsticas fÃsico-quÃmicas, estudar a estabilidade do produto embalado em dois tipos de embalagens (laminada e poli

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2

Ribeiro, Mateus Dias. "Fuel spray modeling for application in internal combustion engines /." Guaratinguetá, 2019. http://hdl.handle.net/11449/183102.

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Orientador: José Antônio Perrella Balestieri<br>Abstract: Direct injection spark ignition (DISI) engines aim at reducing specific fuel consumption and achieving the strict emission standards in state of the art internal combustion engines. Therefore, in this work the goal is to develop code for simulations of the internal flow in DISI engines, as well as the phenomenon of fuel spray injection into the combustion chamber using a Lagrangian-Eulerian approach for representing the multiphase flow, and Large-eddy Simulations (LES) for modeling the turbulence of the continuum medium by means of the

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3

Javed, Muhammad Asif. "Insecticide application studies for whitefly control." Thesis, Imperial College London, 2001. http://hdl.handle.net/10044/1/8662.

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4

Lavers, Alan. "The development of innovative pesticide application technology to improve spray delivery." Thesis, University of Newcastle Upon Tyne, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.405336.

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5

Veliz, Rubén Darío Collantes. "Avaliação de dois sistemas para aplicação de agrotóxicos em citros." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/11/11148/tde-13032007-135956/.

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O presente trabalho teve por objetivo avaliar e comparar dois sistemas de aplicação de agrotóxicos em citros visando à redução do volume de aplicação com base no estudo da quantidade de produto que permanece no alvo (deposição) e análise das gotas. Na citricultura utilizam-se altos volumes de aplicação (de 2000 a 5000 L.ha-1) para o controle de pragas e doenças incrementando os custos operacionais, por esse motivo, atualmente vem-se desenvolvendo diversos sistemas de aplicação com tecnologia sofisticada visando diminuir esses volumes para 200 ou 500 L.ha-1 mas permitindo que a quantidade de pr

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6

Ferreira, Marcelo da Costa [UNESP]. "Caracterização da cobertura de pulverização necessária para controle do ácaro Brevipalpus phoenicis (G., 1939) em citrus." Universidade Estadual Paulista (UNESP), 2003. http://hdl.handle.net/11449/105316.

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Made available in DSpace on 2014-06-11T19:34:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2003-06-17Bitstream added on 2014-06-13T19:04:55Z : No. of bitstreams: 1 ferreira_mc_dr_jabo.pdf: 878678 bytes, checksum: c7d9ef85f62c02e7e3944ad23533b794 (MD5)<br>O objetivo desta pesquisa foi identificar a cobertura mínima necessária ao controle do ácaro Brevipalpus phoenicis. O trabalho foi conduzido no Depto. Fitossanidade - UNESP, Jaboticabal, em frutos de laranja infestados artificialmente com ácaros criados em câmara climatizada. Testou-se o efeito residual e tópico de propargite e verifi

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7

Di, Sabatino Marcello <1979&gt. "Spray Congealing Technology for the preparation of solid lipid microparticles: new frontiers of application." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2010. http://amsdottorato.unibo.it/2936/.

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8

Gardon, Ramos Marc. "Titanium Dioxide coatings obtained by Thermal Spray technlologies and their functional application." Doctoral thesis, Universitat de Barcelona, 2013. http://hdl.handle.net/10803/128199.

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The main subject of this thesis is the fabrication of functional titanium dioxide coatings by means of Atmospheric Plasma Spray (APS) and Cold Gas Spray (CGS). Functional role may be understood as the capacity of TiO2 surfaces to respond in a determined way under certain conditions. Firstly, conventional coating processes, sensing mechanisms and overall efficiencies were deeply studied. As regards to experimental results, it was observed that H2 contained in the plasma mixture could reduce TiO2 towards non stoichiometric or stoichiometric compounds such as titanium sub-oxides (TiO2-x) or M

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9

Lee, Su-Gil. "Dermal and ocular exposure during the spray application of selected industrial chemicals /." Title page, abstract and table of contents only Title page, abstract and table of contents only, 2004. http://web4.library.adelaide.edu.au/theses/09PH/09phl4770.pdf.

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10

Wolf, Thomas Martin. "Spray application into standing stubble : an exploration of physical and physiological components /." The Ohio State University, 1996. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487935125882624.

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11

Wong, Yee-man Melody, and 黃漪汶. "TIP spray ionization mass spectrometry and its analytical application in direct sample analysis." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/195959.

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Electrospray (ES)-based ambient ionization techniques have been rapidly developed and became indispensable tools for direct sample analysis using mass spectrometry. In this study, it was found that with the use of porous substrate, analytes present in complex samples could be detected by directly introducing untreated sample on porous tips. Moreover, the specific feature, micro-channels of the porous tips, allows efficient sample loading and facilitates electrospray ionization (ESI), which is beneficial for the direct sample analysis. Systematic study on the influences of the physical and che

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12

Saeed, Muhammad Tariq. "Application of kinetic models to the design of liquid-liquid extraction spray columns." Thesis, Imperial College London, 1989. http://hdl.handle.net/10044/1/47638.

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13

Bozon, Nicolas. "Coupling atmospheric dispersion model and Geographical Information Systems : application to pesticide spray drift." Montpellier 2, 2009. http://www.theses.fr/2009MON20255.

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La pollution atmosphérique par les pesticides issus de la viticulture est un problème environnemental majeur affectant aussi bien la santé humaine que l'équilibre des écosystèmes. La modélisation de la dispersion atmosphérique et l'usage des systèmes d'information géographique peuvent permettre de quantifier spatialement la pollution atmosphérique sur le territoire. Cette thèse est fondée sur le couplage d'un modèle de dispersion atmosphérique des pesticides et d'un système d'information géographique, destiné à prédire et cartographier la pollution atmosphérique après les traitements phyto-san

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14

Chalé-Góngora, Hugo-Guillermo. "Etude de l'interaction jet/paroi dans un spray transitoire. Application à l'injection diesel." Ecully, Ecole centrale de Lyon, 1998. http://www.theses.fr/1998ECDL0037.

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Ce travail a eu pour objectif une meilleure connaissance des mécanismes régissant la formation et le développement de l'écoulement pariétal formé lors de l'impact d'un jet diesel sur une plaque. Afin d'isoler les aspects dynamiques du phénomène, une configuration expérimentale non confinée à pression et température ambiantes a été utilisée. Le comportement de la phase dispersée pour différentes conditions d'approche du jet et différentes températures de la plaque a été analysé. Les champs de vitesses et de diamètres de la zone libre et la zone pariétale ont pu être relevés à l'aide d'un systèm

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15

Chiewudomrat, Suttiya. "Optical characterization of gradient in droplets : application to CO2 capture by MEA spray." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMIR07.

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Les sprays réactifs peuvent être trouvés dans de nombreuses applications industrielles. La caractérisation de l'état transitoire pour des gouttes est un défi, elle nécessite la mesure de la température et / ou des gradients de composition dans des gouttes. Dans cette thèse, la technique d'arc en ciel globale est étendue pour pouvoir quantifier l'évolution des gradients. Après l'étude numérique des caractéristiques de l'arc-en-ciel diffusé par goutte à gradient d'indice de réfraction radial, une étude expérimentale est réalisée pour le cas particulier de la capture du CO2 par des gouttes de MEA

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16

Sundberg, Kristin L. "Application of Materials Characterization, Efficacy Testing, and Modelling Methods on Copper Cold Spray Coatings for Optimized Antimicrobial Properties." Digital WPI, 2019. https://digitalcommons.wpi.edu/etd-dissertations/511.

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The Copper Development Association (CDA) has identified over 450 copper alloys registered with the U.S. Environmental Protection Agency (EPA) as antimicrobial. With growing antibiotic resistance, there is a need for copper coatings with increased antimicrobial capability. Cold spray is a high velocity, high deposition rate process that forms dense coatings with little to no oxides or inclusions. It is possible that this process contributes to the increased antimicrobial capability of copper cold spray coatings as compared to other additive processes. The focus of this effort is to understand

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17

Dalla, Francesca Kevin. "Exfoliation du graphène par voie liquide en vue d'une application aux contacts électriques." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS134/document.

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Le graphène est un matériau carboné exceptionnel de par ses propriétés électriques (mobilité électronique à température ambiante de 200 000 cm²V-¹s-¹), mécaniques (module d'Young de 1,5 TPA) et sa capacité à protéger un substrat de l’atmosphère. Cela en fait un candidat idéal comme revêtement de protection pour les dispositifs de connexion dont la partie active (le contact électrique) peut subir des dégradations sévères au cours du temps.. Un tel revêtement de protection doit en effet avoir des propriétés de robustesse et de conduction la plupart du temps antinomiques. La première étape de ce

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18

Perednis, Dainius. "Thin film deposition by spray pyrolysis and the application in solid oxide fuel cells /." [S.l.] : [s.n.], 2003. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=15190.

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19

Ntozakhe, Luyolo. "Synthesis of modified zinc oxide nanoparticles using pneumatic spray pyrolysis for solar cell application." Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/5862.

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In this work, the pneumatic spray pyrolysis was used to synthesize un-doped and carbon doped zinc oxide (ZnO) nanoparticles. The zinc acetate, tetrabutylammonium bromide and ethanol were used as starting materials for the desired ZnO nanoparticles and the prepared samples were annealed at 400 oC in the furnace. The as synthesized un-doped and carbon doped ZnO NPs were evaluated using X-ray diffraction (XRD), Scanning electron microscope (SEM), Energy dispersive x-ray spectroscopy (EDX), High-resolution transmission electron microscopy (HRTEM), Raman spectroscopy (RS) and Ultraviolet-visible sp

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Araújo, Demetrius de [UNESP]. "Interferência do volume de pulverização no controle da mancha preta (Guignardia citricarpa kiely) em frutos de laranjeira ‘valência’." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/97217.

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Made available in DSpace on 2014-06-11T19:28:37Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-08-08Bitstream added on 2014-06-13T18:35:03Z : No. of bitstreams: 1 araujo_d_me_botfca.pdf: 601834 bytes, checksum: b2dcd054b52c2b2dc71f5faddbd60de4 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Empresa Privada<br>Em pomares de citros, o controle químico do agente causal da mancha (ou pinta) preta tem merecido destaque pelo excessivo número de pulverizações, elevando sobremaneira os custos de produção. A busca por melhorias na eficiência das pulverizações e reduç

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21

Ferreira, Marcelo da Costa. "Caracterização da cobertura de pulverização necessária para controle do ácaro Brevipalpus phoenicis (G., 1939) em citrus /." Jaboticabal : [s.n.], 2003. http://hdl.handle.net/11449/105316.

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Resumo: O objetivo desta pesquisa foi identificar a cobertura mínima necessária ao controle do ácaro Brevipalpus phoenicis. O trabalho foi conduzido no Depto. Fitossanidade - UNESP, Jaboticabal, em frutos de laranja infestados artificialmente com ácaros criados em câmara climatizada. Testou-se o efeito residual e tópico de propargite e verificou-se que o acaricida possui ambos os efeitos. Investigou-se o efeito da cobertura de frutos com pulverização da calda dos acaricidas: cyhexatin, óxido de fenbutatina, dinocap e propargite na concentração comercial e metade desta. Verificaram-se efeitos d

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22

Brink, Johannes Cornelius (Jan-Cor). "Optimisation of fungicide spray coverage on grapevine and the incidence of Botrytis cinerea." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20418.

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Thesis (PhD(Agric))--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: Despite adherence to fungicide spray schedules and label recommendations, table and wine grape producers invariably suffer crop losses when environmental conditions are conducive to fruit and foliar pathogens. Registered fungicides are effective and poor control is often attributed to: 1) improper spray timing, 2) reduced sensitivity to fungicides in the pathogen populations, and 3) poor spray deposition. Spray timing, management of fungicide resistance and the epidemiology of Botrytis cinerea have been thoroughly r

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23

Le, Brize Axel. "Etude de la nanostructuration de matériaux énergétiques multi-composants pour application aux poudres propulsives à sensibilités réduites." Thesis, Strasbourg, 2017. http://www.theses.fr/2017STRAE020/document.

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Les travaux de thèse présentés dans ce manuscrit ont porté sur l’élaboration et la caractérisation de poudres propulsives à sensibilités réduites. Ceci a été effectué par l’utilisation de matériaux énergétiques relativement insensibles ainsi que par l’emploi du procédé de Spray Evaporation Flash (SFE). Ce dernier a permis d’obtenir des poudres nanostructurées de composition ternaire. La caractérisation de ces poudres propulsives par spectroscopie Raman a permis de mettre en évidence le mécanisme de plastification de la nitrocellulose par les plastifiants employés. Des analyses de microscopie é

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Ma, Guanqin. "Modélisation 1D de la combustion diesel : application à un moteur automobile." Ecole centrale de Nantes, 2013. http://www.theses.fr/2013ECDN0006.

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Dans le cadre de la réduction des émissions polluantes et de la consommation de carburant des moteurs à combustion interne, ces dernières années ont vu le développement de modes de combustion à allumage par compression partiellement prémélangés (LTC, PCCI,. . ) pour lesquels la cinétique chimique joue un rôle important. Dans ce contexte, le travail présenté dans ce mémoire vise à développer un modèle phénoménologique 1D multizone de combustion Diesel, basé sur un modèle de spray évolué et intégrant différents niveaux de description de la cinétique chimique. L’étude bibliographique réalise un a

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Martins, Tatiana dos Reis. "Microencapsulation of antitubercular drugs in a matrix of partially hydrolyzed guar gum, for application in tuberculosis treatment." Master's thesis, Instituto de Tecnologia Química e Biológica António Xavier. Universidade Nova de Lisboa, 2015. http://hdl.handle.net/10362/43588.

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Trabalho realizado na Universidade do Algarve<br>Tuberculosis (TB), despite being a completely curable disease, has reemerged due to drug resistance and deadly synergism with HIV infection, which limit the success of its management. Lung tuberculosis is the main manifestation of TB. Thus, exploring the inhalable route for a local delivery of antitubercular drugs seems a promising therapeutic approach. Partially hydrolyzed guar gum (PHGG) is a strong candidate as matrix material for antitubercular drug carriers. This is mainly due to its affinity for macrophages, the hosts of mycobacteria, whic

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26

Abuzahra, Fakhry. "Etude Expérimentale des Processus d'Atomisation Textuels : Application à des Ecoulements Cavitants." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMR028/document.

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L’atomisation texturelle désigne le mécanisme d’arrachage de gouttes à l’interface d’un écoulement liquide libre. Cemécanisme est contrôlé par les caractéristiques de l’écoulement au sortir de l’injecteur et se manifeste dans son champproche. Peu étudiée, l’atomisation texturelle est un phénomène rapide, impliquant de très petites structures ligamentaireset produisant un brouillard de très fines gouttes. Le travail de cette thèse est une étude expérimentale d’un processusd’atomisation texturelle observé sur des écoulements produits par des injecteurs cavitants. Trois atomiseurs académiquestran

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27

Arbeau, Anne. "Étude de l'entraînement d'air dans un spray haute pression : diagnostics optiques et application à l'injection Diesel." Toulouse, INPT, 2004. http://ethesis.inp-toulouse.fr/archive/00000029/.

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La préparation du mélange air/carburant, fortment conditionnée par l'entraînement d'air par les sprays, est essentielle pour la réduction des émissions de dioxyde d'azote et de particules par les moteurs Diesel. Des outils métrologiques pour l'analyse des mécanismes d'entraînement d'air par des sprays coniques denses moyenne et haute pression sont développées. La Vélocimétrie par Images de Particules (PIV) permet d'extraire les champs de vitesses de l'air entraîné à partir desquels le taux de mélange est calculé. L'influence des paramètres d'injection sur ce dernier est alors étudiée. Les résu

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Scudeler, Fábio [UNESP]. "Assistência de ar e angulação da barra pulverizadora na deposição e perdas da pulverização na cultura da batata." Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/97200.

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Made available in DSpace on 2014-06-11T19:28:36Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-03-04Bitstream added on 2014-06-13T19:37:28Z : No. of bitstreams: 1 scudeler_f_me_botfca.pdf: 1044258 bytes, checksum: 463181dbc507a5ef09e2efc81b815e2a (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Empresa Privada<br>A cultura da batata possui grande expressão econômica dentro do cenário agrícola. Para issso, equipamentos e técnicas de aplicação de produtos fitossanitários vêm sendo desenvolvi

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Araújo, Demetrius de 1981. "Interferência do volume de pulverização no controle da mancha preta (Guignardia citricarpa kiely) em frutos de laranjeira 'valência' /." Botucatu : [s.n.], 2008. http://hdl.handle.net/11449/97217.

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Resumo: Em pomares de citros, o controle químico do agente causal da mancha (ou pinta) preta tem merecido destaque pelo excessivo número de pulverizações, elevando sobremaneira os custos de produção. A busca por melhorias na eficiência das pulverizações e reduções na quantidade dos produtos fitossanitários já tem sido realizada, mas os resultados dessa prática ainda não são consistentes para que possa ser aplicado em escala comercial. Sendo assim, esse trabalho objetivou avaliar a interferência da redução nos volumes de pulverização, no controle da mancha preta em frutos cítricos, bem como o e

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Zambianco, Edmar Casarin. "Avaliação da qualidade de pulverização em plantas de tomate utilizando diferentes pontas." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/11/11152/tde-16122013-165050/.

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A tecnologia da aplicação tem papel fundamental na agricultura, pois proporciona uma correta aplicação do produto biologicamente ativo no alvo, ocasionando um melhor aproveitamento dos agrotóxicos. O objetivo do trabalho foi avaliar a influência de diferentes pontas e pressões na qualidade da pulverização na cultura do tomate por meio da quantificação do depósito e da cobertura foliar. Foram estudadas as pontas GA 11002 (jato plano com indução de ar), TTJ 60-11002 (jato plano duplo) e TT 11002 (jato plano padrão), todas nas pressões de 200, 350 e 500 kPa. Para todos os tratamentos a taxa de ap

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Berna, Raquel [UNESP]. "Espectro de gotas geradas por ponta de jato plano de impacto para aplicação aérea na presença de adjuvantes em caldas de pulverização." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/150846.

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Doisneau, François. "Eulerian modeling and simulation of polydisperse moderately dense coalescing spray flows with nanometric-to-inertial droplets : application to Solid Rocket Motors." Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2013. http://www.theses.fr/2013ECAP0030/document.

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Dans un moteur à propergol solide, l’écoulement dépend fortement des gouttes d’alumine en suspension, dont la fraction massique est élevée. La distribution en taille des gouttes, qui s’élargit avec la coalescence, joue un rôle clef. Or résoudre des écoulements diphasiques polydisperses instationnaires avec une bonne précision sur la taille est un défi à la fois sur le plan de la modélisation et du calcul scientifique: (1) de très petites gouttes, par exemple résultant de la combustion de nanoparticules d’aluminium, subissent mouvement brownien et coalescence, (2) de petites gout

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Farah, Ali M. (Ali Muhamed). "Liquid dynamic compaction spray deposition of commercial and modified 3003 Al-alloy : process application and materials characterization." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/41394.

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Prosperi, Brice. "Analyse de l'entraînement d'air induit par le développement instationnaire d'un spray conique creux : application à l'injection directe essence." Phd thesis, Toulouse, INPT, 2008. http://oatao.univ-toulouse.fr/7815/1/prosperi.pdf.

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Les travaux présentés s'inscrivent dans l'étude générale de la mise au point des moteurs à injection directe essence de deuxième génération. Ces moteurs présentent un gain potentiel de réduction de la consommation de carburant dans un fonctionnement en mode de combustion en mélange pauvre et stratifié. Pour accroître le gain, l'application de ce mode de fonctionnement doit être étendue des bas régimes et faibles charges du moteur jusqu'aux régimes intermédiaires et charges partielles. La technologie d'injecteur à actuateur piézo-électrique permet de contrôler précisément la quantité de carbura

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Prosperi, Brice Bazile Rudy. "Analyse de l'entraînement d'air induit par le développement instationnaire d'un spray conique creux application à l'injection directe essence /." Toulouse : INP Toulouse, 2009. http://ethesis.inp-toulouse.fr/archive/00000836.

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Palumbo, John, and Wayne Coates. "Air-Assisted Electrostatic Application of Pyrethrois and Endosulfan Mixtures for Sweetpotato Whitefly Control and Spray Deposition in Cauliflower." College of Agriculture, University of Arizona (Tucson, AZ), 1996. http://hdl.handle.net/10150/214740.

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Pyrethroid and endosulfan mixtures applied at full and reduced rates with three application methods (air-assisted electrostatic, air-assisted hydraulic, and standard hydraulic sprayers) were evaluated in field studies in 1992 and 1993 for control of sweetpotato whitefly, Bemisia tabaci-strain B (Genn.), also known as silverleaf whitefly, Bemisia argentifolii Bellows and Perring, and spray deposition on caulker, Brassica oleracea L. Based on adult suppression, improved control of whiteflies was achieved with full and reduced rates of the air-assisted electrostatic sprayer following two applicat

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Kaniuga, Michael Brian. "Applicator Exposure to Glycol Derivatives and Total Volatile Organic Compounds during the Application of Spray Polyurethane Foam Insulation." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5427.

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There is currently high demand for new building materials which are considered "environmentally friendly" or "green" for both new construction and renovations. Spray polyurethane foam (SPUF) insulation has gained significant acceptance by both consumers and the construction industry due to its high R-value, which results into significant energy savings among other things. Despite its acceptance by consumers and the construction industry, consideration must be given to potential chemical exposures to applicators installing these products. This study sought to determine, through quantitative exp

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Fife, Jane Patterson. "Investigation of the effect of agricultural spray application equipment on damage to entomopathogenic nematodes a biological pest control agent /." Columbus, OH : Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1069194860.

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Thesis (Ph. D.)--Ohio State University, 2003.<br>Title from first page of PDF file. Document formatted into pages; contains xxii, 303 p.: ill. (some col.). Includes abstract and vita. Advisors: H. Erdal Ozkan and Richard C. Derksen, Dept. of Food, Agricultural, and Biological Engineering. Includes bibliographical references (p. 213-221).

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Comunian, Talita Aline. "Simultaneous encapsulation of echium (Echium Plantagineum L.) seed oil, phytosterols and phenolic compounds: characterization and application of microcapsules." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/74/74132/tde-23022018-135021/.

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The consumption of omega-3 fatty acids and phytosterol promotes the reduction of cholesterol and triacylglycerol levels. However, such compounds are susceptible to oxidation, which hampers their application. First, the aim of this work was to encapsulate echium oil (Echium plantagineum L.), source of omega-3 fatty acids, with hydrophilic phenolic compounds (sinapic acid and rutin) by double emulsion followed by complex coacervation in order to evaluate the best hydrophilic phenolic compound. In this case, sinapic acid showed better performance as antioxidant. Then, the second objective of this

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Llop, Casamada Jordi. "Improvement of spray application process in greenhouse tomato crop : assessment of adapted spraying technologies and methods for canopy characterization." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/458447.

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Vegetable production in greenhouses is an important and productive economic activity for agricultural businesses in Southern Europe. One of the most risky factors affecting this activity is the use of plant protection products (PPP). Several studies have demonstrated that the use of vertical boom sprayers in greenhouses has several advantages over that of traditional spray guns, such as improved spray distribution, reduced labour costs, and reduced operator exposure. On the other hand, canopy characterization is important for a better adjustment of the amount of pesticide/mixture sprayed, and

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Ouboukhlik, Maria. "Caractérisation du transfert de matière dans un spray réactif pour le traitement des fumées : application au captage du CO2." Thesis, Rouen, INSA, 2015. http://www.theses.fr/2015ISAM0008/document.

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Le captage de polluants des effluents industriels, et plus particulièrement du CO2, est un défi majeur à relever. Le procédé de captage du CO2 basé sur l’absorption par des solutions aqueuses d’amines est la technique la plus maîtrisée pour le traitement des fumées en postcombustion. La substitution des colonnes à garnissage par des colonnes à pulvérisation présente un intérêt économique car la surface d’échange entre les phases gazeuse et liquide est très importante réduisant ainsi la taille de la colonne d’absorption. De plus, les pertes de charge côté gaz sont évitées et les coûts de mainte

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Baba, Kamal. "Développement et optimisation du procédé Spray Plasma de dépôt de couches minces d'oxyde de zinc : application aux cellules photovoltaïques." Paris 13, 2013. http://scbd-sto.univ-paris13.fr/secure/edgalilee_th_2013_baba.pdf.

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Ce travail de thèse a pour but la mise au point et l’optimisation d’un nouveau procédé de dépôt de couches minces d’oxyde de zinc pour des applications photovoltaïques. Le principe de ce procédé, nommé « Spray Plasma », consiste à injecter un aérosol de microgouttelettes d’une solution aqueuse de nitrate ou chlorure de zinc dans un réacteur plasma basse pression. Sous l’effet de l’évaporation rapide et la réactivité du plasma d’argon/oxygène, le précurseur de zinc est transformé en couches minces d’oxyde sur la surface du substrat à température contrôlée. La transformation chimique fait interv

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Belghit, Khalid. "Fabrication et caractérisation des matériaux CuInSe2 "N" et ZnO obtenus par pulvérisation chimique réactive "spray" : application aux photopiles solaires." Montpellier 2, 1991. http://www.theses.fr/1991MON20012.

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Ce travail consiste en la fabrication par spray de cuinse#2 de type n en vue de realiser une homojonction. Les caracterisations ont montre que l'obtention du type n est correlee par la presence de la phase secondaire in#2o#3 qui court-circuite la jonction et conduit donc a l'absence de l'effet redresseur. La seconde partie est consacree a la fabrication par la meme technique du materiau transparent zno. Les caracterisations electriques ont montre que la conductivite de zno n'est pas suffisante pour l'utiliser comme electrode a la place de l'i. T. O. Les premiers resultats sur la photopile c. I

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Clark, Lee J., Eddie W. Carpenter, and Jeff Silvertooth. "Effect of Spray Dilution and Rate of Pix Application on Long and Short Staple Cotton, Safford Agricultural Center, 1987." College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/204550.

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PIX was applied to long and short staple cotton in 5, 10 and 20 gallons of water in an incomplete factorial design involving 0.5, 1 and 2 pints of the product per acre. Plant heights were significantly shortened and the percent of lint obtained in the first picking was significantly increased when Piz was applied on the short staple cotton. No statistically significant yield differences were observed between the volumes of dilution or the rates of application for either long or short staple cotton. A factor underlying the experiment was that the monsoon rains. They kept the surface of the grou

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Pérez, Sánchez Eduardo Javier. "Application of a flamelet-based combustion model to diesel-like reacting sprays." Doctoral thesis, Universitat Politècnica de València, 2019. http://hdl.handle.net/10251/117316.

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[ES] El objetivo de esta tesis es la investigación y análisis de la estructura interna de los chorros diésel reactivos y el efecto de las condiciones de contorno en los parámetros asociados a la combustión. Este objetivo se consigue por medio de la simulación numérica del chorro con modelos de turbulencia RANS y LES usando un modelo de combustión avanzado basado en el concepto flamelet. Para este estudio, se aplica una aproximación simplificada de las flamelets de difusión, conocidas en la literatura como Flamelets de Difusión Aproximadas (ADF en inglés), como fundamento del modelo de combust

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Yousef, Narin. "Solution-based and flame spray pyrolysis synthesis of cupric oxide nanostructures and their potential application in dye-sensitized solar cells." Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-119329.

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The dye sensitized solar cell (DSSC) is a promising low-cost technology alternative to conventional solar cell in certain applications. A DSSC is a photo-electrochemical photovoltaic device, mainly composed of a working electrode, a dye sensitized semiconductor layer, an electrolyte and a counter electrode. Sunlight excites the dye, producing electrons and holes that can be transported by the semiconductor and electrolyte to the external circuit, converting the sunlight into an electrical current. A material that could be useful for DSSCs is the nanoscale cupric oxide, which can act as a p-typ

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Lemaitre, Pascal. "Développement et application de la réfractométrie arc-en-ciel global pour l'étude des transferts massique et thermique dans un spray." Rouen, INSA, 2004. http://www.theses.fr/2004ISAM0019.

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Huber, Justin P. "UV-LITHOGRAPHIC PATTERNING OF MICRO-FEATURES ON A CONICAL MOLD INSERT." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_theses/26.

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In past studies, several techniques have been employed to create microscopic features on relatively simple surfaces. Of these, lithography-based techniques have proven effective at manufacturing large fields of deterministic microasperities and microcavities on planar and cylindrical substrates. The present study focuses on adapting UV-lithography to a more complex substrate. Machined from stainless steel, a conical mold insert introduces an interesting geometry designed for the injection molding of radial lip seal elastomer. The distinct shape of this mold insert poises unique challenges to a

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Rolland, Gilles. "Élaboration et étude de l'endommagement de dépôts composites obtenus par projection dynamique par gaz froid ("cold spray") : application aux contacts électriques." Phd thesis, École Nationale Supérieure des Mines de Paris, 2010. http://pastel.archives-ouvertes.fr/pastel-00584319.

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Les contacts électriques, utilisés dans les contacteurs et les disjoncteurs, sont des composants fortement sollicités dont le comportement influence la durée de vie des appareils. Les pastilles de contacts électriques, en matériaux composites à matrice d'argent, sont actuellement élaborées par des opérations classiques de métallurgie des poudres avant d'être assemblées par soudage sur des supports contacts. Un procédé envisagé pour le remplacement de la méthode classique d'élaboration est celui de la projection dynamique par gaz froid communément appelé cold spray. Dans ce procédé, des particu

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Lemetayer, Julien. "Etude par PIV par fluorescence de l’interaction d’un spray avec un écoulement gazeux en aérodynamique contrôlée : application à l’injection directe essence." Thesis, Rouen, INSA, 2016. http://www.theses.fr/2016ISAM0023/document.

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De nombreux procédés actuels mettent en jeu des écoulements diphasiques (sprays agricoles, pharmaceutiques, peinture...). Néanmoins, la connaissance des mécanismes régissant les interactions entre les phases (entraînement, modification des trajectoires des particules, transfert d'énergie...) est encore incomplète, notamment lors de l'injection directe essence, qui représente le cadre de cette étude. Dans cette étude expérimentale, les dynamiques instantanées des deux phases sont étudiées dans un plan pour mettre en évidence les interactions aérodynamiques entre les phases. Pour ce faire, un di

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