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Dissertations / Theses on the topic 'Zincate'

Author: Grafiati
Published: 8 June 2024
Last updated: 31 July 2025

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1

Baillie, Sharon E. "Novel synthetic and structural advances in magnesiate and zincate chemistry." Thesis, University of Strathclyde, 2012. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=18668.

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Building on recent successes in mixed-metal chemistry, this research project aims to enhance the understanding of the complicated correlations existing between structural patterns and reactivities of alkali metal magnesiates and zincates together with exploring their applications in a number of fundamental organic transformation reactions such as metallation, alkyl addition and metal-halogen exchange reactions. Elucidating the effect that donor solvents can exert on the overall constitution of organometallic reagents, a series of novel solvated [(donor)MMgR3] and [(donor)2M2MgR4] (donor = THF,
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2

Chohan, Zahid H. "Co-ordination chemistry of the 1,3-dithiole-2-thione (DMIT) and 2-one-4,5-dithiolato (DMIO) compounds." Thesis, University of Aberdeen, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244990.

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Various bis-dmio and -dmit zincate complexes, [Q]<SUB>2</SUB>[Zn(dmio)<SUB>2</SUB>] [Q = NEt<SUB>4</SUB>, 1,4-dmp, Ph<SUB>4</SUB>P and FcCH<SUB>2</SUB>NMe<SUB>3</SUB>] and [Q]<SUB>2</SUB>[Zn(dmit)<SUB>2</SUB>] [Q = FcCH<SUB>2</SUB>NMe<SUB>3</SUB>], have been prepared and characterised by IR, <SUP>1</SUP>H and <SUP>13</SUP>C-NMR spectral and elemental analysis data. The solid state structure of [FcCH<SUB>2</SUB>NMe<SUB>3</SUB>]<SUB>2</SUB>[Zn(dmio)<SUB>2</SUB>] was determined by X-ray crystallography. The complexes, [Q]<SUB>2</SUB>[Zn(dmio)<SUB>2</SUB>] and [Q]<SUB>2</SUB>[Zn(dmit)<SUB>2</SUB>]
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3

Herd, Emma. "Alkali metal zincate chemistry : the importance of structure and stoichiometry on reactivity." Thesis, University of Strathclyde, 2014. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=24356.

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Focusing on the area of cooperative bimetallic reagents, this report aims to advance our understanding on the construction and reactivity of alkali metal zincates. Extending previous studies on the synthesis of dialkyl(amido)zincates, unsolvated lithium zincate [LiZn(HMDS)Me₂] 4a was prepared by a cocomplexation approach, and its interaction with a range of Lewis basic solvents of varying denticity was examined. The effect of these donors on constitution and stability was assessed, resulting in the determination of a novel dialkyl(amido)zincate, [(PMDETA)LiZn(HMDS)Me₂] 5, containing an unusual
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4

Balloch, Liam. "Towards understanding synergic s-block chemistry : new insights from zincate and magnesiate reactions." Thesis, University of Strathclyde, 2012. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=17205.

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5

Robertson, Sherryl G. "The zincate immersion process for plating aluminium: A kinetic, electrochemical and morphological study." Thesis, Robertson, Sherryl, G. (1995) The zincate immersion process for plating aluminium: A kinetic, electrochemical and morphological study. PhD thesis, Murdoch University, 1995. https://researchrepository.murdoch.edu.au/id/eprint/52750/.

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The zincate immersion process is used commercially to treat aluminium prior to electroplating. The aluminium is immersed into an alkaline zincate solution where the oxide layer is dissolved. An intermediate zinc coating is then formed on the surface through displacement. Despite having been used commercially for many decades, the process still experiences a number of problems. The reaction has been studied previously, but no one has yet taken advantage of the fact that the zincate immersion process is a cementation reaction, and a large body of knowledge exists on how to determine the mechanis
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6

ZIPPERIAN, DONALD CHARLES. "PHYSICAL AND CHEMICAL CHARACTERISTICS OF THE ZINCATE IMMERSION PROCESS FOR ALUMINUM AND ALUMINUM ALLOYS." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184123.

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A detailed experimental study has been carried out to investigate the zincate immersion deposition process for 99.99%, 6061, and 356-T6 aluminum samples. In particular, the effect of iron and tartrate in the immersion bath, the aluminum surface preparation, and the relationship of the first immersion step to the second immersion step were investigated by chemical, electrochemical (polarization and rest potentials), and surface analytical scanning electron microscopy (SEM), transmission electron microscopy (TEM), Rutherford backscattering spectrometry (RBS), X-ray photoelectron spectroscopy (X
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7

Garden, Jennifer Anne. "Advances in synthetic, structural and reaction chemistry of zinc and zincate complexes containing alkyl and/or amido ligands." Thesis, University of Strathclyde, 2014. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=23171.

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8

Segale, Allan Davide. "Effetto del frenafiletti sul coefficiente d'attrito al serraggio in viti brunite." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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Ad oggi, l'utilizzo dei collegamenti filettati nel campo delle costruzioni meccaniche è ancora piuttosto diffuso, favorito soprattutto dalla possibilità di avere a disposizione dei collegamenti particolarmente resistenti in condizioni operative e facilmente smontabili per operazioni di ispezione o manutenzione. Questa peculiare caratteristica, sfruttata in particolare anche in campo automobilistico, ha spinto nel corso degli anni la ricerca tecnico-scientifica ad indagare sempre meglio le proprietà di questi collegamenti, soprattutto per quanto riguarda le questioni legate all'attrito, di impo
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9

Pierret, Alexandre. "Fonctionnalisation à distance par métallotropie de dérivés benzyliques." Electronic Thesis or Diss., Université de Lorraine, 2023. https://docnum.univ-lorraine.fr/ulprive/DDOC_T_2023_0032_PIERRET.pdf.

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Cette thèse présente un développement de la réaction de fonctionnalisation à distance par réarrangement métallotropique sur des dérivés benzyliques. Le travail repose sur l’utilisation d’un unique réactif métallique, un triorganozincate de lithium, lequel permet la formation de deux liaisons C(sp3)-C(sp2) et C(sp3)-C(sp3) sur des sites distants de 5 atomes en une seule opération. Le premier chapitre se focalise sur les dérivés benzyliques iodés en position 4 du cycle aromatique. Des conditions réactionnelles inédites basées sur l’utilisation d’un solvant biosourcé sont proposées. Elles permett
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10

Chaumont-Olive, Pauline. "Synthèse et développement de la réactivité des triorganozincates de lithium chiraux en addition nucléophile énantiosélective et application à la synthèse de produits bioactifs." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMR069/document.

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Le développement de méthodes de synthèse asymétriques a largement été exploré au cours des vingt dernières années et en particulier par le biais de réactifs organométalliques. Bien que ces processus mènent à d’excellents résultats en terme d’énantiodiscrimination, l’objectif de cette thèse a été de développer de nouveaux outils de synthèse peu onéreux, respectueux des fonctions sensibles environantes et permettant l’accès aux composés attendus avec de bons rendements et excès énantiomériques. Dans cet optique, des triorganozincates de lithium chiraux ont été étudiés. Des méthodes d’alkylation
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11

Rouen, Mathieu. "Les Zincates de lithium en addition nucléophile énantiosélective." Rouen, 2011. http://www.theses.fr/2011ROUES035.

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Divers amidozincates ont été engagés dans des réactions d’additions nucléophiles sur des dérivés carbonylés. Des zincates tétracoordinés ont été étudiés dans un premier temps. Les paramètres de réaction ont d’abord été optimisés en série racémique (amidure = TMP, conversions complètes dans le THF à -78°C après 2h), puis l’utilisation d’un amidure chiral (dérivés de 3-aminopyrrolidines) a permis d’accéder à des alcools énantioenrichis à hauteur de 70% (rendement 60%). Une étude du processus stéréochimique de la réaction a été engagée par spectroscopie RMN. Cependant, du fait de phénomènes d’éch
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12

Greco, Jeffrey Francis. "Preparation, reactivity, and structural studies of zincated C-nucleophiles." Diss., Connect to online resource, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3207757.

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13

Hansson, Robert. "Phase equilibria of zincite containing systems relevant to zinc/lead smelting /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19174.pdf.

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14

Ferrari, Jean Vicente. "Contaminação com sal de cloreto e cromatização da superfície do aço zincado no processo não-contínuo de zincagem por imersão a quente: influência no desempenho de tintas e determinação de pré-tratamentos para pintura adequados." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-05092006-124730/.

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O processo industrial não-contínuo de zincagem por imersão a quente (ZIQ) pode ocasionar a contaminação superficial do aço-carbono zincado por imersão a quente (AZIQ) com resíduos de cloreto. Estes resíduos, se não forem efetivamente eliminados, podem influenciar negativamente no desempenho dos esquemas de pintura dos sistemas dúplex (zincagem mais pintura). Sabe-se que no processo de ZIQ, a cromatização é amplamente utilizada, entretanto, o efeito que este pós-tratamento exerce no desempenho dos esquemas de pintura ainda não é bem estabelecido. Neste contexto, este trabalho teve como objetivo
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15

Pedroso, Danieli Cristina. "Análise de causas de rejeições de peças de aço zincadas a quente." Universidade Presbiteriana Mackenzie, 2009. http://tede.mackenzie.br/jspui/handle/tede/2745.

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Made available in DSpace on 2016-04-18T21:36:00Z (GMT). No. of bitstreams: 4 Danieli Cristina Pedroso1.pdf: 893786 bytes, checksum: 0b49df9c67021da69e5f47f5170c5703 (MD5) Danieli Cristina Pedroso2.pdf: 3031650 bytes, checksum: bbf4b2dc04de906b1c5596adb5c76bb8 (MD5) Danieli Cristina Pedroso3.pdf: 2597659 bytes, checksum: 1a3e7d52a670d6eb3f003b1583e76702 (MD5) Danieli Cristina Pedroso4.pdf: 198943 bytes, checksum: 16b69ef67e7c298a9fc35b695825e236 (MD5) Previous issue date: 2009-08-17<br>In this work the causes of rejection of lots of artifacts from the company Produto para Linhas Preformados,
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16

Korzenowski, Christa. "Tratamento de efluentes ácidos e alcalinos de zincagem eletrolítica por eletrodiálise." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 1996. http://hdl.handle.net/10183/159031.

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O presente trabalho propõe através do uso da eletrodiálise, um método de tratamento de efluentes de zincagem eletrolítica ácida e alcalina, sem a geração do lodo de hidróxidos metálicos, que são subprodutos do tratamento de efluentes convencional. Inicialmente foram estudados, separadamente, efluentes sintéticos contendo zinco e cloreto e os efluentes alcalinos contendo zinco, cianeto e hidróxido. Determinou-se nesses efluentes as melhores condições de uso da eletrodiálise, como melhor tempo, melhor densidade de corrente, melhor temperatura e melhor pH, observando-se fenômenos como polarização
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17

Rodrigues, Tania Regina Inacio. "Perda de carga provocada por engate rapido em tubulações de aço zincado." [s.n.], 1998. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258406.

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Orientador: Ana Ines Borri Genovez<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil<br>Made available in DSpace on 2018-07-24T18:05:07Z (GMT). No. of bitstreams: 1 Rodrigues_TaniaReginaInacio_M.pdf: 3444158 bytes, checksum: 29c5cfa68d8db1064f29635715db1fd9 (MD5) Previous issue date: 1998<br>Resumo: Amplamente utilizados em conjuntos portáteis de irrigação, os tubos de aço zincado com engate rápido proporcionam facilidade na operação e manuseio destes sistemas. Uma dificuldade frenquentemente encontrada pelos projetistas para o dimensionamento hidr
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18

Denichoux, Aurélien. "Réarrangements d'époxydes acétyléniques : applications synthétiques." Paris 6, 2006. http://www.theses.fr/2006PA066464.

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L’étude de trois réarrangements d’époxydes acétyléniques est reportée dans ce manuscrit. Le premier réarrangement effectué via un zincate acétylénique peut être apparenté à une SNi. L’instabilité configurationnelle de l’allénylalkylzinc intermédiaire a notamment été démontrée. Cette réaction permet la synthèse de divers alcools alléniques et homopropargyliques ainsi que de diols-1,3. Le deuxième réarrangement s’effectue par addition de titane(II) ou zirconium(II) sur la triple liaison de l’époxyde acétylénique. Il s’ensuit alors une ouverture de celui-ci puis une élimination pour conduire aux
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19

Bernardes, Andrea Moura. "Processo simplificado de tratamento de efluentes líquidos de zincagem eletrolítica contendo soluções de cianeto." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 1989. http://hdl.handle.net/10183/130129.

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O presente trabalho propoe um método de tratamento dos efluentes de zincagern eletrolítica alcalina de peças de aço e/ou ferro fundido sem segregação dos diferentes tipos de águas residuais. Inicialmente foram estudados, separadamente, efluentes sintéticos contendo cromo hexavalente e efluentes sintéticos contendo cianeto. Determinou-se nessas aguas residuais a relação entre potencial redox e pH, potencial redox e concentração de poluentes, potencial redox e volume adicionado de agente redutor e/ou oxidante e estudou-se a cinética de reaçao entre Cr +6 e agente redutor (Na - 2s 2o4 + Feso4), e
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20

Bittencourt, Sérgio Deitos. "Tratamento de efluentes de zincagem eletrolítica ácida por eletrodiálise : utilização de densidades de corrente inferiores e superiores a limite." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/180147.

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A galvanoplastia está entre os processos industriais que mais descartam contaminantes no meio ambiente. Os efluentes gerados contêm elevada carga de metais e sais que necessitam ser tratados, para a recuperação da água e a concentração dos produtos químicos, possibilitando suas reutilizações no processo. Novas tecnologias para o tratamento de efluentes contaminados com metais estão sendo pesquisadas e a eletrodiálise (ED) tem se mostrado eficiente para a recuperação da água e a concentração de eletrólitos. Neste método eletroquímico de separação por membranas, as espécies iônicas em solução sã
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21

Costa, Josiane Soares. "Avaliação do revestimento de conversão à base de zircônio e tanino sobre aço zincado por eletrodeposição." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/96644.

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O pré-tratamento de superfícies metálicas é utilizado para aumentar o desempenho contra a corrosão. Muitas peças, de diversos tamanhos, são cromatizadas, resultando em uma grande quantidade de efluentes e resíduos sólidos gerados desde o desengraxe inicial até a lavagem final. O cromo hexavalente é tóxico e cancerígeno. Isso vai contra a grande preocupação mundial da atualidade: sustentabilidade e redução do impacto ambiental. Novos processos sustentáveis têm sido estudados para reduzir os impactos ambientais. Portanto, este trabalho apresenta o desempenho de revestimentos nanocerâmicos à base
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22

Zhao, Peng. "The Attempted Synthesis of Carba-Nicotinic Acid Mononucleotide Methyl Ester using the Zincke Reaction." University of Toledo Health Science Campus / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=mco1488576282701401.

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23

Daltro, Adnauer Tarquínio. "Soldagem a arco elétrico com proteção gasosa em juntas de chapas finas de aço." Universidade de São Paulo, 2000. http://www.teses.usp.br/teses/disponiveis/88/88131/tde-16092016-160549/.

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O uso de chapas finas de aço, revestidas ou não, tem sido crescente nos últimos anos, principalmente aquelas que tem revestimento à base de zinco. Isto ocorre tanto na indústria automobilística e mecânica como na construção civil, que geralmente fabricam suas peças e estruturas utilizando um procedimento de soldagem. O objetivo deste trabalho é estabelecer procedimentos de soldagem à arco elétrico com proteção gasosa - GMAW - com transferência por curto circuito, para elementos de chapa fina de aço carbono não revestido e aço zincado, de modo a se obter junções de qualidade aceitável e diminui
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24

Berville, Mathilde. "Radicaux π-conjugués pour la construction et le contrôle redox d'assemblages moléculaires". Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAF050/document.

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La conduction dans les matériaux organiques est un défi fondamental relevé par de nombreux chercheurs pour adapter au mieux la structure des matériaux à leur application. Les radicaux pi-conjugués sont les plus petites entités pouvant être le support d’une charge délocalisée. Ce travail s’inscrit dans le domaine de la synthèse de composés électro-actifs conduisant à des radicaux pi-conjugués pour l’auto-assemblage et le contrôle redox des propriétés de matériaux. Le chapitre 1 introduit les interactions spécifiques aux radicaux pi-conjugués et les propriétés physicochimiques liées aux édifices
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Viana, Gustavo Henrique Ribeiro. "Estudos para a síntese da viscosamina, de análogos oxigenados e de novos sais de piridínio quirais usando a reação de zincke." Universidade Federal de Minas Gerais, 2008. http://hdl.handle.net/1843/SFSA-867UVE.

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This work was divided into two parts. The first part deals with the attempt at the synthesis of the marine alkaloid viscosamine, a macrocycle of natural occurrence, and its oxygenated analogues. The second part deals with the synthesis of chiral pyridinium salts. The Zincke's reaction was chosen to perform the key step that would lead to viscosamine and its oxygenated analogues; and for the introduction of the stereocenter directly linked to the ring nitrogen of chiral pyridinium salts. The studies to obtain viscosamine did not lead to total synthesis of this alkaloid. In addition to the sever
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Zincke, Fabian [Verfasser], Ulrike [Gutachter] Stein, Edda [Gutachter] Klipp, and Stephan Michael [Gutachter] Feller. "Biomarker based therapies in high risk cancer patients - MACC1 as molecular target / Fabian Zincke ; Gutachter: Ulrike Stein, Edda Klipp, Stephan Michael Feller." Berlin : Humboldt-Universität zu Berlin, 2020. http://d-nb.info/1202775608/34.

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27

Pokhrel, Lok R., and Phillip R. Scheuerman. "Ecological Risk Assessment of Zinc Oxide Nanoparticles." Digital Commons @ East Tennessee State University, 2012. https://dc.etsu.edu/etsu-works/2962.

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28

Carpinelli, Nicolo. "Definizione di una metodica per il controllo in continuo delle proprietà meccaniche su prodotti di acciaio laminati e zincati mediante sensore di rilevamento della magnetizzazione residua e sviluppo del ciclo produttivo di un materiale bifasico." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/6936/.

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Questo elaborato presenta un metodo per lo sviluppo di correlazioni lineari con lo scopo di determinare le proprietà meccaniche di un acciaio laminato e zincato utilizzando un sensore che percepisce la magnetizzazione residua del materiale. Vengono utilizzati metodi statistici di analisi della varianza per lo studio delle funzioni di regressione lineari. Lo studio effettuato è stato sviluppato per la lavorazione di zincatura di coils presso Marcegaglia spa, stabilimento di Ravenna. È risultato evidente che la sola misurazione della magnetizzazione residua non fosse sufficiente per la determina
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Johansen, Jonathan Frederick. "Mathematical modelling of primary alkaline batteries." Thesis, Queensland University of Technology, 2007. https://eprints.qut.edu.au/16412/1/Jonathan_Johansen_Thesis.pdf.

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Three mathematical models, two of primary alkaline battery cathode discharge, and one of primary alkaline battery discharge, are developed, presented, solved and investigated in this thesis. The primary aim of this work is to improve our understanding of the complex, interrelated and nonlinear processes that occur within primary alkaline batteries during discharge. We use perturbation techniques and Laplace transforms to analyse and simplify an existing model of primary alkaline battery cathode under galvanostatic discharge. The process highlights key phenomena, and removes those phenomena
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Johansen, Jonathan Frederick. "Mathematical modelling of primary alkaline batteries." Queensland University of Technology, 2007. http://eprints.qut.edu.au/16412/.

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Three mathematical models, two of primary alkaline battery cathode discharge, and one of primary alkaline battery discharge, are developed, presented, solved and investigated in this thesis. The primary aim of this work is to improve our understanding of the complex, interrelated and nonlinear processes that occur within primary alkaline batteries during discharge. We use perturbation techniques and Laplace transforms to analyse and simplify an existing model of primary alkaline battery cathode under galvanostatic discharge. The process highlights key phenomena, and removes those phenomena
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Lam, Jonathan K. "Part I| Ring-Rearrangement Metathesis of Himbert Arene-Allene Cycloadducts for the Rapid, Modular Construction of Complex Molecular Scaffolds. Part II| Application of Zincke Aldehydes Toward the Synthesis of Gelsemine." Thesis, University of California, Irvine, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3646740.

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<p> Developing new synthetic methods and strategies is an important area of research in organic chemistry. Especially useful are transformations that rapidly and rationally generate complex molecular architectures, with multiple new bonds and new stereocenters, from simple, achiral and modular precursors. This dissertation discusses the synthetic investigation and exploitation of two such reactions.</p><p> In PART I, the intramolecular Diels&ndash;Alder (IMDA) reaction of aromatic dienes and allene dienophiles, utilized in conjunction with ring-rearrangement metathesis (RRM) to prepare angul
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BILLOT, XAVIER. "Utilisation de la reaction de zincke pour la synthese d'oligomeres lineaires ou macrocycliques de type polypyridinium, analogues de produits marins cytotoxiques. Synthese des (r)-niphatesines c et d, de la motuporamine a et de la (r)-haliclorensine." Paris 11, 1999. http://www.theses.fr/1999PA112334.

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La reaction de zincke, developpe au laboratoire pour la synthese de sels de pyridiniums chiraux, a ete utilisee pour effectuer la polymerisation controlee et selective d'un monomere de base 3-(7-heptylamino)-pyridine afin de produire des polymeres de taille definie. Ces derniers sont des analogues d'alcaloides naturels cytotoxiques de la famille des manzamines extraits d'eponges. Cette reaction a ensuite permis la macrocyclisation de ces polymeres pour donner des macrocycles dimeriques, tetrameriques et octameriques de 3-heptylpyridinium. La synthese des niphatesines c et d a ete effectuee a p
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Mehmandoust, Maryam. "Synthèse de dihydro-1, 2 pyridines et d'équivalents de sels de dihydro-2, 5 pyridinium à partir d'amines primaires chirales : application à la synthèse énantiosélective de dérivés d'isoquinuclidines et de pipéridines 2-substituées." Paris 11, 1989. http://www.theses.fr/1989PA112254.

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Une méthode générale de synthèse des sels de pyridinium N-substitués par différents auxiliaires chiraux, une application de la réaction de Zincke, à partir des amines primaires chirales correspondantes, est décrite. Par réduction au borohydrure de sodium en milieu alcalin, ces sels de pyridinium conduisent aux dihydro-1,2 pyridines correspondantes dont les réactions de cycloaddition avec l'acrylate de méthyle ont été étudiées. Des composés azabicyclo[2. 2. 2]octane (isoquinuclidines), dont la configuration absolue a été établie, sont obtenus avec des e. D. De 20 à 33% et une bonne pureté optiq
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Hales, Matthew Cameron. "Synthesis and characterisation of substituted smithsonite and calcite." Thesis, Queensland University of Technology, 2008. https://eprints.qut.edu.au/16643/1/Matthew_Hales_Thesis.pdf.

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Carbonate minerals play a very important role in nature, they represent some of the most diverse and common mineral species on the Planet. They are directly involved in the carbon dioxide (CO2) cycle acting as relatively stable long term chemical storage reservoirs, moderating both global warming trends and oceanaquatic chemistry through carbonate buffering systems. A range of synthetic metal carbonates have been synthesised for analysis under multiple experimental conditions, in order to study the variation in physical and chemical properties such as phase specificity, metal substitution, hyd
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35

Hales, Matthew Cameron. "Synthesis and characterisation of substituted smithsonite and calcite." Queensland University of Technology, 2008. http://eprints.qut.edu.au/16643/.

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Carbonate minerals play a very important role in nature, they represent some of the most diverse and common mineral species on the Planet. They are directly involved in the carbon dioxide (CO2) cycle acting as relatively stable long term chemical storage reservoirs, moderating both global warming trends and oceanaquatic chemistry through carbonate buffering systems. A range of synthetic metal carbonates have been synthesised for analysis under multiple experimental conditions, in order to study the variation in physical and chemical properties such as phase specificity, metal substitution, hyd
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36

Dietze, Markus. "Die Lukasevangelien auf Caló. Die Ursachen ihrer Sprachinterferenz und der Anteil des Spanischen." Master's thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-152855.

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Die Arbeit behandelt die beiden Übersetzungsversionen des Lukasevangeliums ins Caló, die George Borrow 1837 und 1872 anfertigte. Sie hat mehrere Zielstellungen. Der erste Teil geht der Frage nach: Wie kam es zu den beiden Schriften? Er legt dar, welche Einflussfaktoren das authentische Caló im Spanien der 1830er Jahre herausgeprägt haben konnten und welche Einflüsse durch den Übersetzer George Borrow auf die Übersetzungen wirkten. Als extralinguistische Faktoren wird dafür die (Kultur-)Geschichte der Gitanos herangezogen, werden Borrows Biographie sowie seine Sprachkenntnisse untersucht und we
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37

Wang, Rainey Yu. "The morphology study of zinc electrodeposits from alkaline zincate solutions." 2006. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=449830&T=F.

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38

Chen, Po-Wei, and 陳柏瑋. "Preparation calcium zincate composite and its application to a Ni/Zn battery." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/76306082666603047808.

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碩士<br>明志科技大學<br>化工與材料工程研究所<br>97<br>The purpose of this work is to improve the life-cycle of a Zn electrode on a secondary Ni/Zn battery. As we know, the application of the secondary Zn electrode on the rechargeable Ni/Zn battery is still limited because of the dendritic growth, the shape change, and the high solubility in a concentrated KOH solution for the Zn electrode. The calcium zincate powders used as active materials (so-called CP-ZnCa) for the secondary Zn electrode were prepared by a chemical co-precipitation (CP) method. The preparation condition of CP-ZnCa active materials was at 60
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39

Meng-HanYang and 楊孟翰. "Synthesis and characterization of nano-zincite with different morphologies." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/37611175096721365916.

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碩士<br>國立成功大學<br>地球科學系<br>102<br>Zincite (ZnO), which has many potential properties, such as wide direct band gap (~3.37 eV) and high-exciton binding energy (~60 meV), has been widely investigated. In this study, zincite with two crystal morphologies (nano-particle and nano-rod) is synthesized via the chemical precipitation and hydrothermal methods. The zincite nano-particle and nano-rod both have a hexagonal structure with the wurtzite-type. The zincite nano-particle has a particle size around 20~60 nm and nano-rod has a particle size of 15~35 nm in width and 100~150 nm in length, which are fa
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40

Zortea, Laura. "Caratterizzazione microstrutturale e meccanica di rivestimenti colorati innovativi ottenuti tramite bagni di zincatura con l'aggiunta di titanio." Doctoral thesis, 2013. http://hdl.handle.net/11573/917219.

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L’uso di rivestimenti in zinco e leghe di zinco sugli acciai è una delle tecniche commercialmente più importanti usate per proteggere i componenti esposti all’ambiente esterno. Lo scopo di questo lavoro è stato quello di studiare l’effetto del titanio sui rivestimenti zincati, in quanto l’aggiunta di questo elemento comporta una colorazione della superficie. Si è cercato così di unire l’effetto protettivo della zincatura alla bellezza di una colorazione resa solidale al ricoprimento grazie alla formazione di ossidi superficiali, e ovviare così ai problemi dei sistemi duplex zincatura‐vernic
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41

Monteiro, Fernando Jorge Mendes. "A electrodeposição sobre alumínio : tratamentos prévios em solução modificada de zincato." Doctoral thesis, 1986. http://hdl.handle.net/10216/12781.

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42

Monteiro, Fernando Jorge Mendes. "A electrodeposição sobre alumínio : tratamentos prévios em solução modificada de zincato." Tese, 1986. http://hdl.handle.net/10216/12781.

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43

Montuori, Mario. "CORROSIONE DI ARMATURE IN ACCIAIO E ACCIAIO ZINCATO SU STRUTTURE IN CALCESTRUZZO ARMATO RINFORZATE CON FRP." Tesi di dottorato, 2008. http://www.fedoa.unina.it/4017/1/montuori%29.pdf.

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La valutazione della durabilità e la prevenzione della corrosione delle armature di strutture in calcestruzzo rappresentano, al giorno d’oggi, un argomento critico nello studio di manufatti in calcestruzzo armato. I costi elevati relativi alla manutenzione e al recupero di strutture danneggiate hanno condotto alla consapevolezza che la corrosione delle barre deve essere prevenuta al fine di incrementare la vita utile di un manufatto. Nel presente lavoro si sono studiati i fenomeni di degrado di provini di calcestruzzo armato in presenza di cloruri e di anidride carbonica, in condizioni di libe
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44

"Perda de carga provocada por engate rapido em tubulações de aço zincado." Tese, Biblioteca Digital da Unicamp, 1998. http://libdigi.unicamp.br/document/?code=vtls000184082.

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45

Zincke, Horst [Verfasser]. "Zur Alteration der Immunogenität von Nierentransplantaten beim Hund und beim Menschen / vorgelegt von Horst Zincke." 2006. http://d-nb.info/98060477X/34.

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46

Cokoja, Mirza [Verfasser]. "Nanometallurgy in organic solution: organometallic synthesis of intermetallic transition metal aluminide and -zincide nanoparticles / vorgelegt von Mirza Cokoja." 2007. http://d-nb.info/985056525/34.

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47

Rodrigues, Joana Isabel da Silva. "Recuperação de metais de águas contaminadas por processos baseados na utilização de extratos das plantas Cistus ladanifer e Erica andevalensis." Master's thesis, 2019. http://hdl.handle.net/10400.1/14894.

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Atualmente, devido à maior preocupação com os problemas ambientais que consequentemente levam a restrições à descarga de efluentes contaminados com metais, tornou-se essencial o desenvolvimento de processos sustentáveis e eficazes, visando a recuperação dos metais das águas residuais. Simultaneamente, inúmeras espécies vegetais foram descritas como tolerantes e acumuladores de metais, como é o caso de Erica andevalensis e Cistus ladanifer, ambas encontradas em Portugal na mina de São Domingos. Essa capacidade dessas plantas foi explorada no presente trabalho, visando a recuperação de metais de
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48

Roy, Debangsu. "Exchange Spring Behaviour in Magnetic Oxides." Thesis, 2012. http://etd.iisc.ac.in/handle/2005/3172.

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When a permanent magnet is considered for an application, the quantity that quantifies the usability of that material is the magnetic energy product (BH)max. In today’s world, rare earth transition metal permanent magnets like Nd-Fe-B, Sm-Co possesses the maximum magnetic energy product. But still for the industrial application, the ferrite permanent magnets are the primary choice over these rare transition metal magnets. Thus, in the present context, the magnetic energy product of the low cost ferrite system makes it unsuitable for the high magnetic energy application. In this regard, exchang
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49

Roy, Debangsu. "Exchange Spring Behaviour in Magnetic Oxides." Thesis, 2012. http://hdl.handle.net/2005/3172.

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When a permanent magnet is considered for an application, the quantity that quantifies the usability of that material is the magnetic energy product (BH)max. In today’s world, rare earth transition metal permanent magnets like Nd-Fe-B, Sm-Co possesses the maximum magnetic energy product. But still for the industrial application, the ferrite permanent magnets are the primary choice over these rare transition metal magnets. Thus, in the present context, the magnetic energy product of the low cost ferrite system makes it unsuitable for the high magnetic energy application. In this regard, exchang
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50

Dietze, Markus. "Die Lukasevangelien auf Caló. Die Ursachen ihrer Sprachinterferenz und der Anteil des Spanischen." Master's thesis, 2012. https://tud.qucosa.de/id/qucosa%3A28299.

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Die Arbeit behandelt die beiden Übersetzungsversionen des Lukasevangeliums ins Caló, die George Borrow 1837 und 1872 anfertigte. Sie hat mehrere Zielstellungen. Der erste Teil geht der Frage nach: Wie kam es zu den beiden Schriften? Er legt dar, welche Einflussfaktoren das authentische Caló im Spanien der 1830er Jahre herausgeprägt haben konnten und welche Einflüsse durch den Übersetzer George Borrow auf die Übersetzungen wirkten. Als extralinguistische Faktoren wird dafür die (Kultur-)Geschichte der Gitanos herangezogen, werden Borrows Biographie sowie seine Sprachkenntnisse untersucht und we
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