{"id":79030,"date":"2006-10-03T00:00:00","date_gmt":"2006-10-03T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/single-particle-dynamics-of-water-in-xerogel\/"},"modified":"2006-10-03T00:00:00","modified_gmt":"2006-10-03T00:00:00","slug":"single-particle-dynamics-of-water-in-xerogel","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/liquidos\/single-particle-dynamics-of-water-in-xerogel\/","title":{"rendered":"Single particle dynamics of water in xerogel"},"content":{"rendered":"<h2>Tesis doctoral de <strong> David Fern\u00e1ndez Ca\u00f1oto <\/strong><\/h2>\n<p>En esta tesis es presentado un estudio de la din\u00e1mica para la part\u00edcula simple del agua confinada en el xerogel determinada por medio de la t\u00e9cnica dispersi\u00f3n de neutrones altamente inel\u00e1stica (dins). En particular, examinaremos la distribuci\u00f3n de los momentos de los protones del agua confinada en los poros intersticiales donde los (t\u00edpicos di\u00e1metros del por son sobre 24 angstroms y 82 angstroms) de un polvo de xerogel. El xerogel es un material derivado del s\u00edlice y adem\u00e1s transparente, el cual puede ser producido en un amplio rango de densidades macrosc\u00f3picas con porosidad controlada. Es posible cambiar el tama\u00f1o medio de los micro poros en el medio de la estructura, y por lo tanto constituir un sistema modelo para investigar las propiedades din\u00e1micas de los hidr\u00f3genos atrapados.     el agua fue confinada en un cristal de s\u00edlice sol-gel (xerogel) con dos diferentes dimensiones de poro en orden a estudiar la din\u00e1mica de los protones para dos tama\u00f1os de confinamiento distintos y determinar posibles cambios inducidos en el entorno de los protones del agua. el objetivo de este trabajo fue desarrollado para entender como las conectadas redes de los enlaces del hidr\u00f3geno se modifican cuando el agua es confinada en peque\u00f1as cavidades dentro de un material substrato como el xerogel.  los experimentos fueron realizados con el agua confinada en las matrices de xerogel con dos dimensiones de poro distintas, llamados xerogel 24 a y xerogel 82 a con di\u00e1metro del poro promedio de 24 a y 82 a, respectivamente, usando el vesuvio, un espectr\u00f3metro de geometr\u00eda inversa operativo en la fuente de neutrones por espiraci\u00f3n en isis (rutherford appleton laboratoy, united kingdom). las medidas fueron desarrolladas en las muestras hidratadas y tambi\u00e9n secas, cuyos niveles de hidrataci\u00f3n fueron del 108% y 26% para el xerogel 24 a y xerogel 82 a, respectivamente. los experimentos fueron realizados en el rango del momento transferido, q, y de energ\u00eda transferid<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Single particle dynamics of water in xerogel<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Single particle dynamics of water in xerogel <\/li>\n<li><strong>Autor:<\/strong>\u00a0 David Fern\u00e1ndez Ca\u00f1oto <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Vigo<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 10\/03\/2006<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li> Michinel Alvarez Humberto Javier<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jos\u00e9 Luis Legido soto <\/li>\n<li>david Olivieri cecci (vocal)<\/li>\n<li>jerry Mayers (vocal)<\/li>\n<li> Fern\u00e1ndez de cordoba pedro (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de David Fern\u00e1ndez Ca\u00f1oto En esta tesis es presentado un estudio de la din\u00e1mica para la part\u00edcula simple [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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