{"id":59994,"date":"2018-03-09T22:47:49","date_gmt":"2018-03-09T22:47:49","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/simulacion-de-monte-carlo-de-sistemas-complejos-en-red\/"},"modified":"2018-03-09T22:47:49","modified_gmt":"2018-03-09T22:47:49","slug":"simulacion-de-monte-carlo-de-sistemas-complejos-en-red","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/simulacion-de-monte-carlo-de-sistemas-complejos-en-red\/","title":{"rendered":"Simulaci\u00f3n de monte carlo de sistemas complejos en red"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Yolanda Pi\u00f1eiro Redondo <\/strong><\/h2>\n<p>En el presente trabajo, se ha desarrollado un modelo num\u00e9rico de gel f\u00edsico a nivel mesosc\u00f3pico, con un proceso de agregaci\u00f3n que sigue las pautas de la gelatina (agregaci\u00f3n de tres cadenas diferentes en un punto ). Partiendo de un m\u00e9todo de monte carlo din\u00e1mico en red, para un sistema en fase condensada de cadenas autoexcluyentes con interacci\u00f3n (isaw) y asociativas, se analizan las propiedades de la transici\u00f3n sol-gel, mediante ciclos de simulaci\u00f3n din\u00e1mica que siguen una secuencia sucesiva de descenso t\u00e9rmico. el registro continuado de la informaci\u00f3n configuracional permite acceder para cada temperatura a magnitudes de inter\u00e9s topol\u00f3gico y f\u00edsico: el n\u00famero de nodos de la red (equivalente de las triples h\u00e9lices de la gelatina); el n\u00famero de segmentos internodales ( variable que determina el valor del m\u00f3dulo el\u00e1stico de equilibrio ); la distribuci\u00f3n del grado nodal ( que permite evaluar el momento t\u00e9rmico de la transici\u00f3nde fase heterog\u00e9nea a homog\u00e9nea); el grado nodal medio ( relacionado tambi\u00e9n con la rigidez de la red) ; el tama\u00f1o de los poros del gel (mediante el an\u00e1lisis de la distancia euclidea media). adem\u00e1s dado qeu el algortimo de saltos locales implementado es muy local, se puede studiar la din\u00e1mica del sistema mediante el an\u00e1lisis de:  magnitudes de transporte (desplazamiento cuadr\u00e1tico medio del dentro de masas ), que registra un cambio de r\u00e9gimen en al difusi\u00f3n de normal a an\u00f3mala; propiedades \u00f3pticas, a traves de los factores de estructura est\u00e1tico (se registra la aparici\u00f3n de exceso de dispersi\u00f3n a bajo \u00e1ngulo en concordancia con la gelatina en fase gel ) y din\u00e1mico (que reproduce la aprici\u00f3nde un decaimiento potencial en la transici\u00f3n sol-gel con caracter\u00edsticas similares a los observados en el \u00e1mbito experimental para la gelatina); y propiedades diel\u00e9ctricas, mediante la relajaci\u00f3n del modo normal correspondiente a pol\u00edmeros de tipo-a (  que consigue reproducir la caida del salto diel\u00e9ctrico en l<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Simulaci\u00f3n de monte carlo de sistemas complejos en red<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Simulaci\u00f3n de monte carlo de sistemas complejos en red <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Yolanda Pi\u00f1eiro Redondo <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Santiago de compostela<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 16\/07\/2007<\/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>Jose Rivas Rey<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Juan  jose Freire gomez <\/li>\n<li>attilio Ces\u00ed\u00a0ro (vocal)<\/li>\n<li> Buj\u00e1n n\u00fa\u00f1ez m. carmen (vocal)<\/li>\n<li>cristina Hoppe (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Yolanda Pi\u00f1eiro Redondo En el presente trabajo, se ha desarrollado un modelo num\u00e9rico de gel f\u00edsico a [&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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