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Dissertations / Theses on the topic 'Lanthane ion'

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Published: 4 June 2021

Last updated: 4 February 2022

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1

Vieira, Nunes Antonio Idivan. "Transport d'ions sous l'effet d'un champ électrique en milieu poreux : applications à la séparation de terres rares par électrophorèse à focalisation." Vandoeuvre-les-Nancy, INPL, 1999. http://docnum.univ-lorraine.fr/public/INPL_T_1999_VIEIRA_NUNES_A_I.pdf.

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Les ions trivalents de terre rare ont des propriétés très voisines et leurs séparation les uns des autres, généralement délicate, est souvent effectuée par extraction par solvant ou échange d'ions. L'électrophorèse à focalisation représente une alternative à ces techniques éprouvées et l'objet de ce travail était l'étude fondamentale des phénomènes de transport d'ions dans un tel procédé. L'électrophorèse dite à focalisation permet de séparer des espèces amphotères comme des cations de terres rares, M+3, en ayant recours à un gradient de pH dans la cellule et à l'ajout d'un complexant acide (E

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2

AL-NEAMI, KADOM ANAM. "Mesure des sections efficaces de production des rayons x : :(l) des elements ::(56)ba, ::(57)la, ::(58)ce par des protons de 1 mev-3,5 mev." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13172.

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Mesures dans des cibles epaisses de sulfates et d'oxydes, dans des cibles minces d'oxydes disposees sur des couches minces de carbone et dans des cibles epaisses de tetraborate de li dope par equiv. A 1% de ba, la ou ce sous forme de sulfate ou d'oxyde. Bon accord avec les previsions theoriques et avec les valeurs experimentales trouvees pour des elements voisins

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3

Mottot, Yves. "Propriétés chimiques et électrochimiques des chlorures de lanthanides cérides en milieux chlorures fondus : stabilité thermodynamique des alliages LA-NI et ND-FE à haute température." Paris 6, 1986. http://www.theses.fr/1986PA066127.

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Etude thermodynamique et cinétique de la réduction électrolytique de terres rares cériques, réalisée au sein de l'eutectique fondu LICL-KCL. Comportement singulier du néodyme étudié dans l'eutectique BACL::(2)-KCL jusqu'à 1300k; on montre que la stabilité de ND(II) croit avec la température. Etude des alliages entre les métaux des terres rares et les métaux de transition de composition générale LNM::(X), dont les propriétés thermodynamiques ont été déterminées par mesure de la F. E. M. De la pile LN/LNCL::(3), LICL+KCL/LNM::(X); application aux alliages LA-NI ET ND-FE entre 700 et 800K.

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4

Lefebvre, Dominique. "Hexagallates de lanthanide pour matrices laser et substrats d'épitaxie : élaboration, étude cristallographique et spectroscopique." Paris 6, 1986. http://www.theses.fr/1986PA066415.

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Différentes méthodes de cristallogenèse de la MgGa 11O 19 sont testées, notamment l'élaboration par tirage Czochralski. Affinement structural confirmant la structure de type magnétoplombite du composé. Substitution ionique permettant d'accroitre les paramètres cristallins du composé étudié en vue de son utilisation comme support pour la croissance d'hexaferrites alcalinoterreux. Détermination du domaine schématique de composition des aluminogallates La1-xNdxMgGa11O19. Étude des propriétés optiques du néodyme par réflexion diffuse, RPE et fluorescence.

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5

Martin, Philippe. "Etude des mécanismes de diffusion thermique et de diffusion sous irradiation alpha des terres rares dans les apatites." Lyon 1, 1999. http://www.theses.fr/1999LYO10026.

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A l'heure actuelle, le probleme du stockage des dechets nucleaires doit etre resolu. Une des solutions envisagees est de creer des sites de stockage en profondeur et d'assurer leur securite, c'est a dire d'empecher la migration des radionucleides dans la biosphere. Parmi les materiaux susceptibles de freiner cette diffusion, les apatites sont envisagees en raison de leur faible cout (mineral present dans les phosphates sedimentaires ou dans le roches) et de leurs proprietes de retention vis a vis des elements lourds tels que les actinides et les lanthanides. Le but de ce travail a ete d'etudie

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6

Congreve, Aileen. "Responsive lanthanide complexes for metal ion sensing." Thesis, Durham University, 2004. http://etheses.dur.ac.uk/3668/.

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The speciation and distribution of zinc (II) within cells is not well established and the range of zinc (II) probes available are of limited use. The quest was to develop responsive lanthanide complexes to bind selectively and respond (by change in hydration state) to biologically relevant concentrations of zinc at physiological pH for possible application in MRI and luminescence. A pyridyl sulfonamide ligand with an a-CH(_2)NHSO(_2)CF(_3) substituent was found to have the desired properties for strong zinc (II) coordination. The presence of a methyl group at 6', inhibited the formation of rel

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7

Abram, Edward John. "Synthesis and characterisation of doped lanthanum gallate and lanthanum silicate oxide-ion conductors." Thesis, University of Sheffield, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251374.

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8

COURANT-DENIARD, SYLVIE. "Les acides phosphatoantimoniques h::(n)sb::(n)p::(2)o::(3n+5),xh::(2)o (n = 1,3,5) : synthese, caracterisation, proprietes d'echange, de conductivite protonique et de catalyse." Nantes, 1988. http://www.theses.fr/1988NANT2002.

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Les acides sont prepares par echange k**(+)-h**(+) a partir des phosphoantimonates de potassium. Les composes correspondant a n=1 et 3 ont une structure en couche alors que le troisieme presente une charpente covalente tridimensionnelle. Pour chacun d'eux, ont ete precisees l'isotherme d'hydratation a 20**(o)c, la variation des parametres de mailles avec l'humidite relative a 20**(o)c et l'evolution de la teneur en eau et des parametres de maille en fonction de la temperature

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9

Aull, Brian Francis. "The impact of ion-host interactions on the 5d-to-4f spectra of lanthanide rare earth ions." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/40343.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1985.<br>MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING.<br>Includes bibliographical references.<br>by Brian Francis Aull.<br>Ph.D.

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10

White, Gaye Francine. "Lanthanide ion binding proteins as in vivo luminescent labels." Thesis, University of East Anglia, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.247225.

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11

Felix, Olivia. "Etude thermodynamique de la sorption de l'uranyle sur la monazite et la magnétite." Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00737326.

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Les phénomènes d'adsorption interviennent dans les processus géochimiques gouvernant ainsi le transport des contaminants. Par ailleurs, les variations de température sont susceptibles d'influencer significativement leur comportement vis-à-vis de la surface des minéraux. Aussi, l'influence de la température sur la sorption doit être étudiée afin de mieux appréhender le devenir des éléments dans l'environnement. Dans cette optique, l'interaction entre un ion modèle, l'uranyle et deux minéraux a été étudiée. Dans un premier temps, un composé méthodologique, la monazite, a été choisi afin de déter

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12

Cullen, Thomas Donovan. "Hydroxyl radical reaction and lanthanide ion complexation kinetics of DTPA." Thesis, California State University, Long Beach, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=1524188.

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13

Sudhakaran, Pillai S. "Luminescent materials based on Lanthanide ions." Thesis, Kingston University, 2010. http://eprints.kingston.ac.uk/20413/.

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The inclusion of lanthanide (III) (Ln[sup]3+) ions into polymers by “covalent” bonding has applications. Heteroleptic hydrotris(pyrazolyl)borate crotonate and cinnamate complexes were synthesised for reasons that, firstly, knowledge of the polymerisable double bond was helpful in establishing the conditions of any copolymerisation reaction; secondly, the chosen ligands are very good at receiving energy in the UV region; and thirdly, lanthanide complexes might undergo changes in properties, on moving between adjacent lanthanide ions, allowing potentially convenient isolations of pure materials

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14

Accorsi, Gianluca <1973&gt. "Trivalent lanthanide ions: luminescence and applications." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/472/.

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15

Moscrop, R. "Experimental techniques for the study of nuclei in the light Lanthanide region." Thesis, University of Manchester, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383186.

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16

Pereao, Omoniyi Kolawole. "Functionalisation of electrospun nanofibre for lanthanide ion adsorption from aqueous solution." University of the Western Cape, 2018. http://hdl.handle.net/11394/6393.

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Philosophiae Doctor - PhD (Chemistry)<br>Rare earth elements (REEs) have widespread use and importance for industrial applications due to their metallurgical, optical and electronic properties. Several typical hydrometallurgical techniques such as adsorption, chemical precipitation, filtration, ion exchange and solvent extraction techniques have been used for separation and recovery of the rare earth metals from aqueous solutions. Adsorption was recognised as one of the most promising methods due to its simplicity, high efficiency and availability. Many adsorbents are being investigated but th

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17

Lisowski, Carmen Ellen 1978. "Hybrid organic/inorganic nanomaterials: Development of malonamide-functionalized nanoparticles designed for lanthanide ion detection." Thesis, University of Oregon, 2010. http://hdl.handle.net/1794/10523.

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xviii, 174 p. : ill. (some col.) A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number.<br>Hybrid nanoscale complexes incorporate the attributes of organic and inorganic components to yield novel multifunctional materials. Because the individual components themselves and the combinations used can be widely varied to tune the properties of the resulting complex, the potential for new properties and practical applications is nearly limitless. However, widespread use of these materials relies on appropriate design, synthesi

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18

Farkas, Ildiko. "Coordination Chemistry of Actinide and Lanthanide Ions." Doctoral thesis, KTH, Chemistry, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3236.

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19

Farkas, Ildikó. "Coordination chemistry of actinide and lanthanide ions /." Stockholm, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3236.

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20

McCaw, Charles Stuart. "Electronic structure of lanthanide ions in crystals." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298628.

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21

Shehu, Ali. "Structural analysis and its implications for oxide ion conductivity of lanthanide zirconate pyrochlores." Thesis, Queen Mary, University of London, 2018. http://qmro.qmul.ac.uk/xmlui/handle/123456789/36699.

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The local structure evolution as a function of composition and temperature, and the resulting electrical conductivities were studied in samples with general composition (Yb1-xNdx)2Zr2O7, using Reverse Monte Carlo (RMC) modelling of total neutron scattering data and Impedance Spectroscopy. At low neodymium content (0.00 ≤ x ≤ 0.50), this system crystallizes in the fluorite structure with space group Fm3̄m, where-as at high neodymium content (0.75 ≤ x ≤ 1.00), a pyrochlore structure with space group Fd3̄m is observed. For compositions with high neodymium content prepared at lower temperatures, a

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22

Takasaki, Bryan K. "Lanthanide ions in the development of artificial nucleases." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28535.

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The kinetics and mechanism of hydrolysis of both activated and unactivated phosphate diesters in the presence of aqueous solutions of Ce(III) salts are studied in detail. In the presence of 20 mM Ce$ rm (ClO sb4) sb3 (pH 8, 37 sp circ C)$ a DNA dinucleotide (dApdA) is converted to the nucleoside (dA) and inorganic phosphate with a half-life of approximately 100 minutes. This reaction is oxygen dependent and a mechanism involving the activation of oxygen by Ce(III) to give a Ce(IV) coordinated peroxide dianion as the active species is proposed.<br>The addition of 20 mM hydrogen peroxide to 2mM

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23

楊友源 and Yau-yuen Yeung. "Alternative parametrization schemes in lanthanide crystal fieldtheory." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1986. http://hub.hku.hk/bib/B31231044.

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24

Crooks, Steven M. "Analysis of the spectra of compounds containing lanthanide ions." Thesis, University of Canterbury. Physics, 1998. http://hdl.handle.net/10092/8144.

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This thesis is concerned with the mechanics of transforming between observational data of lanthanide ion transition intensities and the parameters which model the observed intensities. The accuracy of intensity measurements and the underlying accuracy of the model used to predict the observables is investigated. Investigation is made of the effect of uncertainties for the fitting of transition intensities and rotatory strengths. In this thesis it is shown that the parameterisation of the transition intensity operator using the Reid-Richardson Aλtp intensity parameters is inherently, multi-val

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25

Zouad, Sélim. "Etude de la fixation des ions strontium et lanthane sur les acides antimonique et phosphatoantimonique." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37619334w.

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26

Zouad, Sélim. "Etude de la fixation des ions strontium et lanthane sur les acides polyantimonique et phosphatoantimonique." Paris 6, 1988. http://www.theses.fr/1988PA066620.

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Etude des mecanisme et cinetique de la fixation d'ions lanthane et strontium sur le pentoxyde d'antimoine hydrate et sur les aides h#3sb#3p#2o#1#4?xh#2o et h#5sb#5p#2 o#2#0?xh#2o. Mise en evidence de l'echange cationique h#+/sr#2#+

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27

Yeung, Yau-yuen. "Alternative parametrization schemes in lanthanide crystal field theory /." [Hong Kong : University of Hong Kong], 1986. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12324863.

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28

Guillot, Stéphanie. "Étude des paramètres principaux gouvernant les propriétés de conduction dans les apatites, électrolytes pour piles SOFC." Thesis, Lille 1, 2009. http://www.theses.fr/2009LIL10052/document.

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Cette thèse a pour objet l’élaboration et la caractérisation d’oxyapatite silicatées de lanthane, matériaux potentiellement utilisables comme électrolyte pour piles à combustible à oxyde solide. Des poudres et céramiques denses d’apatite de stœchiométries en oxygène et de compositions (substitutions) différentes ont été élaborées par réaction à l’état solide à haute température. Il ressort que quelque soit la composition, le paramètre principal qui gouverne les propriétés de conduction est la stœchiométrie en oxygène. La conductivité atteint 1,7 x 10-2 S.cm-1 à 700°C pour la composition La10Si

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29

Smith, Charlene Amanda. "The synthesis and magnetochemistry of transition and lanthanide metal compounds." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/the-synthesis-and-magnetochemistry-of-transition-and-lanthanide-metal-compounds(1f50bd6e-19e2-4cf6-9211-e22fcef578f9).html.

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The introductory Chapter to this thesis outlines fundamental aspects of 4f lanthanide(III) coordination chemistry, in particular compounds that possess the intriguing properties of slow relaxation of magnetisation, (or the ability to behave as single-molecule magnets, SMMs). The recent renaissance into the study of the magnetic behaviour of 4f-coordination complexes has led to the consideration of utilising organometallic precursors for the development of novel lanthanide containing compounds, which may possess interesting magnetic properties, subsequently forming the basis of Chapter Two. In

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30

蔡慶銘 and Hing-ming Michael Chua. "Transition intensities and energy transfer of lanthanide ions in crystals." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1994. http://hub.hku.hk/bib/B31211409.

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31

Chua, Hing-ming Michael. "Transition intensities and energy transfer of lanthanide ions in crystals /." [Hong Kong : University of Hong Kong], 1994. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13692689.

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32

Ritt, Marie-Claude. "Thermodynamics of interaction of macrocyclic ligands with multivalent ions and organic molecules of biological importance." Thesis, University of Surrey, 1991. http://epubs.surrey.ac.uk/843105/.

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The first part of this work deals with the determination of the thermodynamic parameters for the complexation of lanthanide cations (La3+, Pr3+ and Nd3+) with Cryptand-221 and Cryptand-222 in acetonitrile and propylene carbonate at 298.15 K. The complexation process between these cations and these ligands in these solvents is enthalpy-controlled. The higher stability observed for these cations and these ligands in propylene carbonate with respect to acetonitrile is attributed to the increase in entropy observed for the complexation reaction in propylene carbonate. Enthalpies of solution of lan

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33

Chen, Chao-Hsu. "Atomistic Computer Simulations of Diffusion Mechanisms in Lithium Lanthanum Titanate Solid State Electrolytes for Lithium Ion Batteries." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc700110/.

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Solid state lithium ion electrolytes are important to the development of next generation safer and high power density lithium ion batteries. Perovskite-structured LLT is a promising solid electrolyte with high lithium ion conductivity. LLT also serves as a good model system to understand lithium ion diffusion behaviors in solids. In this thesis, molecular dynamics and related atomistic computer simulations were used to study the diffusion behavior and diffusion mechanism in bulk crystal and grain boundary in lithium lanthanum titanate (LLT) solid state electrolytes. The effects of defect conce

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34

Sharples, Joseph William. "Cooling rapidly and relaxing slowly with 4f ions." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/cooling-rapidly-and-relaxing-slowly-with-4f-ions(fab0aa0f-1ab7-4016-9d97-5edf6a629fa8).html.

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Anisotropic magnetic materials have been proposed over the past twenty years or so as candidates for high density storage, so-called Single-Molecule Magnets (SMMs). These may in future be used to store data at the level of an individual molecule. Separately, isotropic materials may be harnessed for their large magnetocaloric effect which enables them to be used as refrigerants. This can potentially replace the increasingly rare and therefore expensive 3He and 4He currently employed either separately or in 3He-4He dilution refrigerators. This thesis examines the use of lanthanide(III) ions for

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35

Santos, Marina. "ANALYTICAL POTENTIAL OF POLYMERIZED LIPOSOMES BOUND TO LANTHANIDE IONS FOR QUALITATIVE AND QUANTITATIVE ANALYSIS OF PROTEINS." Doctoral diss., University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2587.

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One of the intriguing features of biological systems is the prevalence of highly selective and often very strong interactions among different cellular components. Such interactions play a variety of organizational, mechanical, and physiological roles at the cellular and organism levels. Antigen-antibody complexes are representative examples of highly selective and potent interactions involving proteins. The marked specificity of protein-antibody complexes have led to a wide range of applications in cellular and molecular biology related research. They have become an integral research tool in t

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36

Santos, Marina. "ANALYTICAL POTENTIAL OF POLYMERIZED LIPOSOMES BOUND TO LANTHANIDE IONS FOR QUALITATIVE AND QUANTITATIVE ANALYSIS OF PROTEINS." Doctoral diss., University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2588.

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One of the intriguing features of biological systems is the prevalence of highly selective and often very strong interactions among different cellular components. Such interactions play a variety of organizational, mechanical, and physiological roles at the cellular and organism levels. Antigen-antibody complexes are representative examples of highly selective and potent interactions involving proteins. The marked specificity of protein-antibody complexes have led to a wide range of applications in cellular and molecular biology related research. They have become an integral research tool in t

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37

Couchman, Samantha M. "Syntheses and structural studies of complexes of mixed donor pyridine/phenol and pyridine/pyrazole ligands." Thesis, University of Bristol, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299312.

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38

Lontsi, Fomena Mireille Doumerc Jean-Pierre Villesuzanne Antoine. "Etude théorique de la diffusion de l'oxygène dans des oxydes diélectriques." S. l. : Bordeaux 1, 2008. http://tel.archives-ouvertes.fr/tel-00402631.

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39

Viguier, Romain. "Synthèse de nouveaux ligands polypodes : complexation des ions lanthanide en solution aqueuse." Grenoble 1, 1999. http://www.theses.fr/1999GRE10277.

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Dans ce travail les syntheses de ligands tripodes a sous unites methyloxyacetates : hexadentes, nonadentes et dodecadentes, a espaceur tris (oxymethyl) alkyle, ont ete realisees. La synthese de nouveaux ligands hexapodes triaminehexaacetates : nonadentes a espaceur tris (aminomethyl) alkyle est egalement decrite. Les constantes de stabilite ainsi que les constantes de protonation des complexes d'ions lanthanide de ces ligands sont determinees ainsi que celles d'une serie de ligands tripodes a sous unites methyloxypropionates. Les valeurs des constantes de stabilite des complexes d'ions lanthan

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40

Huber, Anne-Katrin, Sven Ole Steinmüller, Eva Mutoro, Bjoern Luerßen, and Jürgen Janek. "In situ examination of Lanthanum Strontium Manganate (LSM) with Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS)." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-186860.

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41

Huber, Anne-Katrin, Sven Ole Steinmüller, Eva Mutoro, Bjoern Luerßen, and Jürgen Janek. "In situ examination of Lanthanum Strontium Manganate (LSM) with Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS)." Diffusion fundamentals 12 (2010) 52, 2010. https://ul.qucosa.de/id/qucosa%3A13889.

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42

BOREL, CORINNE. "Cristallogenese et caracterisation d'hexaaluminates de lanthane dopes aux ions chrome et titane pour la realisation de nouveaux lasers accordables." Paris 6, 1990. http://www.theses.fr/1990PA066732.

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L'etude des monocristaux d'hexaaluminates mixtes de lanthane et magnesium, de formule lamgal11019 (lma), dopes aux ions cr3+ et ti3+, pour la realisation de nouveaux materiaux laser accordables dans le visible et proche infra-rouge (600-1200 nm), s'est deroulees en trois etapes: cristallogenese et amelioration de la qualite cristalline, etude des proprietes spectroscopiques d'absorption et d'emission et essais laser en cavite. Aucun des deux materiaux n'a donne lieu a une emission laser: le lma:cr de bonne qualite cristalline possede des proprietes d'emission mediocres, principalement dues a l

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43

Bortolus, Sophie. "Etude comportementale des acides humiques en solution et de leur interaction avec les ions cuivre (II) et lanthane (III)." Paris 6, 2004. http://www.theses.fr/2004PA066516.

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44

Henneberg, Eva. "Thermodynamische und kinetische Untersuchungen im System La-Si-H-(Cl)." Doctoral thesis, [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969828241.

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45

Zheng, Zhangfeng. "Sol-Gel Processed Amorphous LiLaTiO3 as Solid Electrolyte for Lithium Ion Batteries." Digital WPI, 2015. https://digitalcommons.wpi.edu/etd-dissertations/547.

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Rechargeable lithium ion batteries have been widely used in portable consumer electronic devices, hybrid and full electric vehicles, and emergency power supply systems, because of their high energy density and long lifespan. The lithium ion battery market was approximately $11.8 billion in 2010 and is expected to grow to $53.7 billion in 2020. However, there is an intrinsic safety issue in these batteries because electrolyte contains a flammable organic solvent which may cause fire and/or even explosion. All solid-state lithium ion battery is recognized as next-generation technology for rechar

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46

DIAS, CRISTIANE. "O Estudo do comportamento eletroquimico do ion La sup(3+) em meio a cloretos fundidos. A formacao de LaNi sub(5)." reponame:Repositório Institucional do IPEN, 2002. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11062.

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Made available in DSpace on 2014-10-09T12:47:41Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:08:15Z (GMT). No. of bitstreams: 1 08318.pdf: 5216839 bytes, checksum: a5aa91f30daca6826d66086676357dd7 (MD5)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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47

Gömann, Anissa. "Das Verhalten von donatordotierten SrTiO3-Oberflächen unter Hochtemperaturbehandlung." Clausthal-Zellerfeld : Papierflieger, 2005. http://deposit.d-nb.de/cgi-bin/dokserv?idn=974496510.

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48

Hatscher, Stephan Tobias. "Thiosilicate der Lanthanide Synthesen, Kristallstrukturen und magnetische Eigenschaften /." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=968692176.

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49

Waiter, Gordon David. "The NMR proton relaxation effectiveness of paramagnetic metal ions and their potential as MRI contrast agents." Thesis, University of Aberdeen, 1995. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU077829.

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Paramagnetic lanthanide ions have been investigated as possible MIR phantom materials and contrast agents. The aim of this study is to determine if it is possible to apply the well known Solomon-Bloembergen equations to solutions of paramagnetic lanthanide ions that have fast electron spin relaxation times, compared to Gadolinium, the most widely used ion for NMR. Studies of the relaxivity, frequency and temperature dependence, show that there is a considerable difference in those properties over the series. Chelation of the ions to EDTA and DTPA resulted in a decrease in the relaxivity which

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Bentz, Dirk. "Komplexe von Zink, Cadmium, Lanthan, Cer und Samarium mit sperrigen Alkylcyclopentadienyl-Liganden." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=977288579.

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