Cálculo de la distribución de temperatura en el electrodo de una soldadura de punto por resistencia mediante el metodo de volumenes finitos

ESTA TESIS TIENE POR OBJETIVO UTILIZAR LAS TEORIAS DE CONDUCCION DE CALOR Y LOS METODOS NUMERICO TALES COMO VOLUMENES FINITOS COMO HERRAMIENTAS VALIOSAS EN EL ANALISIS DE CONDUCCION EN ESTADO TRANSCIENTE CON GENERACION, EN EL DISEÑO DE LOS ELECTRODOS DE LA MAQUINA SOLDADORA DE PUNTO POR RESISTENCIA ELECTRICA. SE REVISA LA INFORMACION CONCERNIENTE A SOLDADURA DE PUNTO POR RESISTENCIA Y LOS PRINCIPALES METODOS DE ANALISIS DE LA DISTRIBUCION DE TEMPERATURA. SE TRATA DE IDEALIZAR LOS PROCESOS DE GENERACION DE CALOR Y ENFRIAMIENTO EN MODELOS MATEMATICOS, PARA OBSERVAR LA VARIACION DE LA TEMPERATURA EN EL LECTRODO CON RESPECTO A LA POSICION Y EL TIEMPO

The database of the PREDICTS (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems) project

The PREDICTS project—Projecting Responses of Ecological Diversity In Changing Terrestrial Systems (www.predicts.org.uk)—has collated from published studies a large, reasonably representative database of comparable samples of biodiversity from multiple sites that differ in the nature or intensity of human impacts relating to land use. We have used this evidence base to develop global and regional statistical models of how local biodiversity responds to these measures. We describe and make freely available this 2016 release of the database, containing more than 3.2 million records sampled at over 26,000 locations and representing over 47,000 species. We outline how the database can help in answering a range of questions in ecology and conservation biology. To our knowledge, this is the largest and most geographically and taxonomically representative database of spatial comparisons of biodiversity that has been collated to date; it will be useful to researchers and international efforts wishing to model and understand the global status of biodiversity