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Dissertations / Theses on the topic 'Vanadis'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Kneižytė, Laura. "Vanadžio molekulinių junginių sintezė ir tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120802_114711-83171.

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Zolis-gelis procesas, kuris turi potencialiai didelę technologinę vertę, leidžia sukurti medžiagas, kurių unikalios struktūros ir savybės yra retai gaunamos naudojant kitus metodus. Šio darbo užduotis- pagaminti Vanadžio-Titano-hidrochinono oksidinę bronzą panaudojant zolis-gelis technologiją bei ištirti vanadžio ir titano jonų valentingumą juose naudojant Rentgeno fotoelektronų spektroskopijos metodą. Darbe aprašoma Zolio-Gelio technologijos pagrindai, Rentgeno fotoelektronų spektroskopija ir jos spinduliuotės prietaisai, bei matavimo metodika. Aprašyti eksperimentiniai bronzos ir vanadžio –

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2

Dell'olio, Aurélie. "La Croisière du Vanadis : sur les traces d'Edith Wharton." Thesis, Toulon, 2014. http://www.theses.fr/2014TOUL3003/document.

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Une trace est une suite d’empreintes, laissées par le passage d’un être ou d’un objet – c’est donc avant tout l’indice d’un chemin parcouru. C’est à ce déplacement dans le temps et dans l’espace qu’invitent mes travaux de recherche dont l’objectif est de suivre Edith Wharton « à la trace ». La trace, c’est d’abord, pour ce qu’elle nous apprend sur le voyageur et son rapport au monde, cette croisière en Méditerranée qu’elle entreprend en 1888 à bord du Vanadis. C’est également l’empreinte qui subsiste de cette expérience du voyage : un manuscrit dactylographié qui retrace le périple et rend com

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3

Bračiulis, Gediminas. "Vanadžio pagrindinės būsenos hipersmulkiosios struktūros teoriniai tyrimai." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20060616_111947-51398.

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The hyperfine structure of the ground state of vanadium, is calculated in the nonrelativistic framework of the multi-configiuration Hartree-Fock approximation. A configuration state function limiting algorithm is used to make the calculations feasible and to study the influence of core, valence and core-valence correlations in detail.

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4

Vitkutė, Indrė. "Natrio-vanadžio oksidinės bronzos sintezė ir tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100713_112732-28879.

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Darbo tikslas yra susintetinti natrio-vanadžio oksidinę bronzą Na0.33V2O5 zolių-gelių sintezės būdu bei nustatyti jos cheminį sąstatą Rentgeno fotoelektronų spektroskopijos metodu. Darbe aprašyti zolių-gelių technologijos pagrindai, vanadžio pentoksido ir jo hidratuotų junginių struktūra, vanadžio oksidinių bronzų savybės ir sintezės būdai bei Rentgeno fotoelektronų spektroskopijos metodo pagrindai. Pateiktas išsamus vanadžio – natrio oksidinės bronzos sintezės zolių-gelių metodu technologijos aprašymas. Aprašyti eksperimentiniai bronzos ir vanadžio – natrio kserogelio Rentgeno fotoelektronų s

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5

Pašiškevičius, Audrius. "Synthesis of the Vanadium Oxide Compounds and Investigation by X-Ray Photoelectron Spectroscopy Method." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110219_122819-95620.

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The thin films of oxide xerogels and bronzes and molecular oxide xerogels and bronzes of vanadium compounds were synthesized by sol-gel technology method. The chemical composition of mentioned compounds was investigated using XPS method in order to determine the valence of metal ions. It is shown that it is possible to produce the thin films of vanadium oxide bronzes using simple methods. The possibility to use vanadium-ammonium oxide hydrated compounds as materials for producing the ammonium sensors is shown in the dissertation.<br>Šiame darbe panaudojant zolis-gelis technologiją, susintetint

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6

Pašiškevičius, Audrius. "Vanadžio oksidinių junginių sintezė ir tyrimas Rentgeno fotoelektronų spektroskopijos metodu." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110219_122827-21925.

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Šiame darbe panaudojant zolis-gelis technologiją, susintetinti vanadžio junginių oksidinio kserogelio ir bronzos bei molekulinio oksidinio kserogelio ir bronzos plonieji sluoksniai. Visų minėtų medžiagų cheminė sudėtis ištirta Rentgeno fotoelektronų spektroskopijos metodu, siekiant nustatyti metalų jonų valentines būsenas. Panaudojant zolis-gelis technologiją, galima gana paprastais metodais, nenaudojant sudėtingos technologinės įrangos, gaminti vanadžio oksidinių bronzų plonuosius sluoksnius. Vanadžio amonio hidratuoti oksidiniai junginiai gali būti naudojami kaip medžiagos amoniako dujų juti

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7

Šafář, Martin. "Vliv povlakování na lomové chování ledeburitické oceli." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229293.

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This work deals with tool steel Vanadis 6. It describes the preparation of samples for the three-point bending test, with which it examines the influence of surface roughness, the effect of nitriding, coating and duplex coatings on fracture behaviour of the steel. First, it examines bending strength and the total energy required to work of fracture. The work also includes mapping and measurement of surface roughness on different layers. This measurement is performed on a confocal microscope.

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8

Šarkauskas, Karolis. "Etaloninių V2O5 ir VO2 bandinių Rentgeno fotoelektronų spektrų tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20120511_124522-91250.

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Darbo tikslas yra ištirti etaloninių vanadžio pentoksido ir dioksido Rentgeno fotoelektronų spektrus siekiant nustatyti cheminį poslinkį tarp oksidų V 2p spektrų smailių. Darbe išsamiai aprašytos vanadžio dioksido ir prntoksido struktūros, oksidų savybės, Rentgeno fotoelektronų spektroskopijos metodo pagrindai bei V2O5 ir VO2 Rentgeno fotoelektronų spektrų ypatumai. Aprašyti atliktų eksperimentų metodai. Pateikti eksperimentų ir literatūrinės duomenų bazės analizės rezultatai. Atliktas darbas leido nustatyti sekančius faktus: cheminis poslinkis tarp vanadžio dioksido ir pentoksido etaloninių b

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9

Pacheco, Calderón Javier, Fernández Paloma Salas, and Rigo-Righi Carla Galli. "Vanadium Insulin mimetic activity." Revista de Química, 2012. http://repositorio.pucp.edu.pe/index/handle/123456789/100049.

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La diabetes mellitus es un serio desorden metabólicocrónico que se caracteriza por el incremento anormal de laglucosa en la sangre y por complicaciones vasculares yneurológicas. La diabetes mellitus es causada por una falta oun defecto en la acción de la insulina. Si bien actualmenteexisten varios medicamentos orales además de la insulina oanálogos de la insulina, ninguno de estos es el ideal.El vanadio es capaz de imitar los efectos mostrados por lainsulina tanto in vitro como in vivo y se estudia la posibilidadde usar compuestos de vanadio como agentes antidiabéticos. Eneste artículo se revi

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10

Langr, Pavel. "Vanadové články jako zdroje a akumulátory energie." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221095.

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This semestral thesis deals with problematics of redox flow batteries, especially vanadium batteries. The first part is focused on describing basic terms, describes redox batteries and explains chemical processes. It also deals with vanadium batteries properties and construction. The second part of the thesis describes diagnostic method of spectroscopy, which seems to be very perspective for examining attributes of vanadium redax batteries.

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11

Fonseca, Solange Tamara da 1978. "Efeito de adições de vanádio, nióbio e molibdênio na estrutura e propriedades mecânicas de aços com 0,7 % C utilizados na fabricação de rodas ferroviárias." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265830.

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Orientadores: Paulo Roberto Mei , Amilton Sinatora<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-26T20:19:05Z (GMT). No. of bitstreams: 1 Fonseca_SolangeTamarada_D.pdf: 21576321 bytes, checksum: ed8a1cccc8774fff4540b331b49b44b8 (MD5) Previous issue date: 2015<br>Resumo: Uma das maneiras de se reduzir os custos no transporte de cargas é aumentando a quantidade de carga transportada por vagão, isto eleva a tensão no eixo do vagão e, consequentemente, a roda deve possuir maior dureza sem perda da tenacidade para

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12

Kumar, Sachin. "Gas Phase Oxidation of Dimethyl Sulfide by Titanium Dioxide Based Catalysts." Miami University / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=miami1081780904.

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13

Albuquerque, Angela. "[V,AI]-MCM-22 - um catalisador redox bifuncional." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/250415.

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Orientador: Heloise de Oliveira Pastore<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-08-07T11:21:16Z (GMT). No. of bitstreams: 1 Albuquerque_Angela_D.pdf: 3045566 bytes, checksum: 280ada8d591e09adc89304ad0847ca95 (MD5) Previous issue date: 2006<br>Resumo: A síntese da peneira molecular vanadoaluminossilicato com estrutura MWW, [V,Al]-MCM-22, foi realizada por tratamento hidrotérmico estático. Os materiais recém sintetizados, calcinados e trocados com íons H, Na ou K foram caracterizados por diversas técnicas analíticas e es

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14

Ferreira, João Paulo Ligabó. "Intercalação de íons lantanídeos e de poli(óxido de etileno) assistida por tensoativo na matriz hospedeira VOPO4.2H2O." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/59/59138/tde-20082009-151045/.

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Compostos de vanádio são extensivamente estudados, devido suas propriedades redox, eletroquímicas, catalíticas, magnéticas e biológicas. Nesta dissertação tivemos como foco de nosso trabalho o composto VOPO4.2H2O que apresenta uma forma lamelar com suas lamelas unidas por interações de Van der Waals. Essas fracas interações interlamelares fazem do fosfato de vanadila e de seus componentes análogos excelentes matrizes para a síntese de compostos de intercalação. A morfologia do VOPO4.2H2O mostrou-se sensível a alterações de temperatura e tempo durante síntese. Através da alteração destes parâme

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15

Castro, Elisabeth Pavão de. "Estudo das interações magneto-elásticas em ligas de cromo-vanádio." Universidade de São Paulo, 1988. http://www.teses.usp.br/teses/disponiveis/54/54132/tde-13102014-152807/.

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Medidas de atenuação ultrassônica e constante elástica em ligas de Cr-V, utilizando técnicas de pulso eco foram realizadas e as transições na temperatura de Neel, TN, estudadas. Um modelo teórico é proposto para descrever os comportamentos da atenuação e constante elástica perto da transição em TN. De acordo com o modelo proposto a adição de vanádio diminui drasticamente o coeficiente de difusão, modificando a natureza da transição. Foram utilizadas amostras de cromo contendo 0,2%V; 0,5%V; 0,67%V; 1,0%V e 1,5%V. A partir da dependência aproximadamente linear de TN com a concentração de vanádio

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16

Wolke, Silvana Ines. "Quimica organometalica de superficie de metais dos grupos 5 e 6 : reatividade dos complexos [V(=NtBu)(Np3)], Np= neopentila, e [Mo(=CHCMe2Ph)(=NAr)(OR)2], Ar = 2,6-i-Pr2-C6H3, R = tBu e CMe(CF3)2, em relação a superficie de oxidos inorganicos." [s.n.], 2000. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249148.

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Orientador : Regina Buffon<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-07-27T16:53:27Z (GMT). No. of bitstreams: 1 Wolke_SilvanaInes_D.pdf: 3491368 bytes, checksum: 8a31ab2d117ac0fb9bc5fd52f9f94f1d (MD5) Previous issue date: 2000<br>Doutorado

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17

Guo, Xiaoyu. "Poisoning and Sulfation on Vanadia SCR Catalyst." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1332.pdf.

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18

Drexler, Andreas. "Charakterisierung von elektrochemisch präparierten Deckschichten auf Vanadium, Eisen-Vanadium- und Eisen-Chrom-Vanadium-Legierungen mit Röntgenphotoelektronenspektroskopie (XPS)." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=97833423X.

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19

Kramer, Karl-Heinz [Verfasser]. "Ausscheidungsverhalten von Nickel-Vanadin-Legierungen / Karl-Heinz Kramer." Karlsruhe : KIT-Bibliothek, 2008. http://d-nb.info/1186272325/34.

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20

Zwane, Seneliso T. "Vanadia Promoted Co-AI20 3 Fischer-Tropsch Catalysts." Master's thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/6760.

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Bibliography: leaves 117-124.<br>The primary aim of this work was to study systematically V20 5 promotion on yAI203 supported cobalt-based Fischer-Tropsch catalysts. The y-Ah03 support was modified by addition of varying amounts of vanadia and was subsequently loaded with the same Co content (10 wt-%). The modified supports and catalysts were characterised using conventional characterisation methods. The physio-chemical properties of the vanadia promoted supports and catalysts were characterised using Atomic Adsorption Spectroscopy (AAS), zeta-potential measurements, and BET measurements, X-ra

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21

Breitenbach, Kathrin [Verfasser], Vanadin R. [Akademischer Betreuer] Seifert-Klauss, and Marion Brigitta [Akademischer Betreuer] Kiechle. "Compliance bei der Einnahme von Bisphosphonaten / Kathrin Breitenbach. Gutachter: Vanadin R. Seifert-Klauss ; Marion Brigitta Kiechle. Betreuer: Vanadin R. Seifert-Klauss." München : Universitätsbibliothek der TU München, 2014. http://d-nb.info/1054753369/34.

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22

Feyel, Sandra. "Gaseous vanadium, vanadium oxide and hydroxide clusters from clusters to model catalysts." Berlin Logos-Verl, 2008. http://d-nb.info/990757048/04.

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23

Bolte, Stephanie Elizabeth. "Vanadium-51 solid state NMR of inorganic vanadium(V) dipicolinic acid complexes." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 76 p, 2009. http://proquest.umi.com/pqdweb?did=1889078501&sid=7&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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24

Abernethy, C. D. "Inorganometallic clusters containing vanadium." Thesis, University of New Brunswick, 1997. http://hdl.handle.net/1882/920.

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25

Behrens, Axel. "Thiofunktionelle Vanadium- und Molybdänkomplexe." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976792400.

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26

Abernethy, Colin D. "Inorganometallic clusters containing vanadium." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0026/NQ29462.pdf.

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27

Salam, Md Abdus. "Studies in vanadium chemistry /." Title page, contents and summary only, 1986. http://web4.library.adelaide.edu.au/theses/09PH/09phs1595.pdf.

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28

Rice, Gordon L. "Structure and reactivity of silica-supported vanadium and vanadium/titanium single-site catalysts." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0020/NQ46540.pdf.

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29

Hamidi, Helaleh. "Effekter av vanadin föreningar på fosfatas i olika celler." Thesis, Mälardalen University, School of Sustainable Development of Society and Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-4449.

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<p> </p><p>Enligt tidigare undersökningar har vanadinföreningar visat sig ha insulinliknande effekter både in vitro och in vivo. Syftet med detta examensarbete var att prova ut en teknik för att testa effekten av vanadinföreningar på två olika celltyper: adherenta celler (AA-celler) och suspensionsceller (K562-celler). När insulinet binder till sin receptor på cellytan är det starten på en biologisk respons. Insulinreceptorn är ett tyrosinkinas som transporterar fosfatgrupper från ATP till tyrosin på sin egen peptidkedja. De aktiverade tyrosinkinasreceptorn kan aktivera ett antal signalmolekyl

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30

Bader, Mirko. "Beitrag zur Charakterisierung der Wälzbeanspruchung von Gradientenschichten am Beispiel von Nitrierschichten /." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=966415957.

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Murga, Cotrina Christian Julio. "Síntesis y caracterización de un novedoso conjugado poliaspartamida-Oxavanadio (IV) como potencial metalofarmaco insulino-mimético." Bachelor's thesis, Pontificia Universidad Católica del Perú, 2013. http://tesis.pucp.edu.pe/repositorio/handle/123456789/6203.

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La presente tesis tiene como objetivo central la síntesis y caracterización de un nuevo conjugado polímero-droga como potencial metalofármaco de uso oral en la terapia contra la diabetes mellitus tipo 2. En este conjugado se emplea una poliaspartamida derivatizada como vehículo polimérico para el agente activo con propiedades insulino-miméticas oxovanadio (IV). La síntesis del mencionado conjugado requirió la preparación de un polímero que cumpla con ciertos criterios básicos, como por ejemplo, ser hidrosoluble, biodegradable y no tóxico. Así, se escogió a la poli-(alfa,beta-D,L-[N-(3-di(ca

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Guiotoku, Marcela. "Estudo dos equilíbrios de monossacarídeos com os íons vanadila(IV) e zinco (II) em solução aquosa." Florianópolis, SC, 2002. http://repositorio.ufsc.br/xmlui/handle/123456789/83444.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Química.<br>Made available in DSpace on 2012-10-20T00:06:35Z (GMT). No. of bitstreams: 1 207495.pdf: 211512 bytes, checksum: 98924d98fb955e52ea108135d13cd9b9 (MD5)<br>Estudo dos equilíbrios de monossacarídeos (ác. D-Glicônico, D-galactono-1,4-lactona, D-Ribono-1,4lactona e 2-deoxi-D-Glicopiranose em solução aquosa. Análise dos complexos formados através de titulação potenciométrica e para o ác. D-Glicônico, medidas de RPE. Estudo do efeito hipoglicêmico do co

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Halepoto, Dost Muhammad. "Syntheses and structures of some novel chromium(II), vanadium(II) and vanadium(III) complexes." Thesis, University of Surrey, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375971.

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Müggenburg, Jan. "Ion beam analysis of metallic vanadium superlattices : Ion beam analysis of metallic vanadium superlattices." Thesis, Uppsala universitet, Tillämpad kärnfysik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-328067.

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35

Šacl, Vojtěch. "Optické stanovení stavu nabití průtokových vanadových článků." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221100.

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The investigated subject for this diploma thesis is getting know properties of the vanadium redox battery (VRB), especially electrolyte. Specialization is applied to the state of charge of this cell and its measurements using the optical methods. Upon different state of charge is changed oxidation number of vanadium and resultant color of the electrolyte. Using spectrofotometry method that characteristic property is undergone measurement. The basic thing was learning to handle a measurement system. The first practical measurement was executed on example foils. Upon measurement of vanadium cell

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Tantrawong, Sukrit. "Magnetomesogens : vanadium-containing liquid crystals." Thesis, University of Hull, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262403.

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Tavakolikhaledi, Mohammadreza. "Vanadium : leaching and solvent extraction." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46814.

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The fundamental understanding of vanadium hydrometallurgy was developed in three phases: vanadium (V) leaching, vanadium (III) oxidative leaching, and solvent extraction of vanadium (V&IV). In the first section, V₂O₅ leaching was studied in three steps. First, vanadium leaching and solubility of VO₂⁺ at different pH’s and temperatures were investigated in sulfuric acid. Secondly, the kinetics of vanadium leaching in pH 5 and pH 8 solutions, and the reductive leaching of vanadium pentoxide using sodium sulfite were studied. It was shown that the kinetics of acid leaching is rapid but suffers f

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38

Sarginson, James Stanley. "Vanadium interaction with FCC catalysts." Thesis, Open University, 1997. http://oro.open.ac.uk/57712/.

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Fluidised cracking catalysts, which contain a form of zeolite-Y as the main catalytically active component, are widply used commercially for the conversion of crude oil into more profitable product streams. During the cracking reaction, these catalysts are contaminated with vanadium which has a marked effect on the crystallinity of the zeolite-Y component and, as a consequence, activity and selectivity for hydrocarbon processing is degraded. The purpose of this work has been to carry out a detailed investigation, on the laboratory scale, of the effect of vanadium contaminatioil on both commerc

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Wells, F. J. "Tertiary phosphine complexes of vanadium." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/46906.

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BOURDIN, ANNE-DOMINIQUE. "Les proprietes insulinomimetiques du vanadium." Strasbourg 1, 1994. http://www.theses.fr/1994STR15040.

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Alvino, De la Sota Nora, and Calderón Javier Pacheco. "Diseño de Agentes Antidiabéticos de Vanadio: Desarrollo y Avances Recientes." Revista de Química, 2007. http://repositorio.pucp.edu.pe/index/handle/123456789/100688.

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El descubrimient o del mayor efecto hipoglicémic o del bis(maltolato)oxovanadio (IV) (BMOV) con respecto a las salesde vanadio, propició el diseño, síntesis y evaluación in vitro e in vivo de una amplia variedad de complejos de oxovanadio(IV) con diversos ligandos orgánicos para su potencial uso como fármacos antidiabéticos que reemplacen , parcial ototalmente , las incómodas inyecciones de insulina en el tratamiento de la diabetes mellitus tipo 1 o los fármacos oraleshipoglicemiante s empleados generalment e en terapias combinadas para la tipo 2.Recientemente , un complejo etil sustituido , a

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42

Straub, Loreen [Verfasser], Vanadin R. [Akademischer Betreuer] Seifert-Klauss, Vanadin R. [Gutachter] Seifert-Klauss, Marion [Gutachter] Kiechle, and Ernst J. [Gutachter] Rummeny. "Mammographische Dichte und Vitamin D-Spiegel : Eine Querschnittsuntersuchung / Loreen Straub ; Gutachter: Vanadin R. Seifert-Klauss, Marion Kiechle, Ernst J. Rummeny ; Betreuer: Vanadin R. Seifert-Klauss." München : Universitätsbibliothek der TU München, 2018. http://d-nb.info/1159703205/34.

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Fregene, Paul Oritseweyimi. "Subvalent vanadium reagents mode of action and applications in organic synthesis /." Diss., Online access via UMI:, 2006.

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44

Sanchez, Henao Mari Luz. "Préparation contrôlée d'oxydes multicomposants supportés pour la déshydrogénation oxydante du propane en propylène." Poitiers, 2001. http://www.theses.fr/2001POIT2308.

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45

Thery, Virginie. "Etude de la microstructure et des transitions de phases électroniques et cristallines de couches épitaxiales de VO₂ déposées sur différents substrats." Thesis, Limoges, 2017. http://www.theses.fr/2017LIMO0059/document.

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Les travaux de recherche présentés dans ce manuscrit concernent l'étude du rôle des déformations (épitaxiale et d'origine thermique) sur les transitions structurales et électriques du dioxyde de vanadium. A cet effet, nous avons synthétisé des films minces de VO₂ par évaporation à faisceau d'électrons et par ablation laser. La géométrie des déformations est contrôlée en modifiant, d'une part, la nature des substrats et, d'autre part, l'épaisseur des dépôts. Dans le cas de la croissance sur des substrats de saphir (Al₂ O₃ ) orientés (001), le fort désaccord de réseau entraîne une croissance par

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Krosniak, Miroslaw. "Rôle des ligands organiques dans les propriétés antidiabétiques du vanadium." Montpellier 1, 2003. http://www.theses.fr/2003MON13523.

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Delahay, Gérard. "Synthese par voie humide de bronzes oxygenes lithium-vanadium, cuivre-vanadium. Caracterisation et proprietes catalytiques redox." Toulouse 3, 1991. http://www.theses.fr/1991TOU30149.

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Une synthese par voie chimique douce de bronzes oxygenes cuivre-vanadium a structure lamellaire et a grande aire specifique a ete realisee. Les composes prepares de formule generale cu(x)v2o5 h2o(x) avec x compris entre 0,4 et 0,7 ont ete caracterises par les techniques suivantes: desorption en temperature programmee (dtp), reduction en temperature programmee (rtp), spectroscopie infrarouge et diffraction des rayons x sur poudre. La mobilite des atomes d'oxygene du reseau du pentaoxyde de vanadium est augmentee par l'intercalation du cuivre pour les reactions d'oxydation de l'hydrogene et du m

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Zegarra, Urquia Carmen Luz. "Síntesis de un nuevo vehículo polimérico alfa,beta-Poli (DL-ácido aspártico) del agente antidiabético oxovanadio (IV)." Master's thesis, Pontificia Universidad Católica del Perú, 2012. http://tesis.pucp.edu.pe/repositorio/handle/123456789/4475.

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El presente trabajo se basa en el diseño y síntesis de un complejo de oxovanadio (IV) con el ligando polimérico α,β-poli(DL-ácido aspártico). Esta macromolécula sintética reúne las características apropiadas para fungir como un vehículo polimérico del agente insulino mimético oxovanadio(IV). Es biodegradable, biocompatible, no tóxica, hidrosoluble y posee grupos carboxílicos capaces de coordinar al metal. La idea de usar un polímero como agente quelante en lugar de los usuales ligandos orgánicos resulta atractiva puesto que el aumento del peso molecular produce un cambio radical en la farmacoc

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Oliveira, Vinicius Silva de. "Propriedades ópticas de nanopartículas de vanádio produzidas por ablação a laser." reponame:Repositório Institucional da UFPR, 2013. http://hdl.handle.net/1884/32048.

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Resumo: Este trabalho apresenta os resultados da produção e caracterização de nanopartículas sintetizadas a partir de um alvo de vanádio. A técnica de ablação a laser em meio líquido foi aplicada na geração de soluções contendo nanopartículas em suspensão. A ablação a laser pode produzir soluções coloidais sem a necessidade de utilizar substâncias que causam danos ao meio ambiente. Além disto, o trabalho revela que a técnica pode ser aplicada na produção de nanopartículas em grande escala. As nanopartículas produzidas neste trabalho foram feitas a partir da ablação de um alvo de vanádio metáli

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Yamazaki, Ricardo Key. "Reduçao da glicemia em ratos diabéticos tratados com sais de vanádio peroxidados." reponame:Repositório Institucional da UFPR, 2012. http://hdl.handle.net/1884/27939.

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A insulina é um hormônio que apresenta ação anabólica em diferentes tipos celulares. Deficiência na secreção e/ou na ação deste hormônio resulta na diabetes mellitus, doença que acomete milhões de pessoas no munto. A busca por novas drogas que atuam na melhoria do estado diabético tem sido foco de intensos estudos, objetivando melhorar a qualidade de vida dos indivíduos diabéticos. Este trabalho investigou a ação de dois compostos de vanádio (sulfato de vanadil e ortovanadato, ambos peroxidados), sobre a glicemia e sua sinalização no músculo sóleo de ratos diabetizados com estreptozotocina (45

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