Codiphagia in Diego Muñoz Camargo’s «Descripción de la ciudad y provincia de Tlaxcala» (1584)

The concept of «codiphagia», coined by Bolívar Echeverría, allows a broadening of the semiotic-ontological understanding of culture and proposes the conceptual basis for a critical reflection on Diego Muñoz Camargo’s Descripción de la ciudad y provincia de Tlaxcala (1584

Apuntes DE DERECHO PROCESAL

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Congestión vehicular en Medellín: una posible solución desde la economía

Desde la teoría económica se plantean los mecanismos basados en precios como una herramienta adecuada para solucionar el problema de congestión vehicular -- El objetivo de este artículo es diagnosticar el nivel de congestión vehicular de la ciudad de Medellín y proponer alternativas que desde la economía permitan dar solución ha dicho problema -- A diferencia de otros estudios, esta investigación analizó la relación entre gasto en transporte y la elección de transporte (público o privado) a través la metodología de elasticidades -- Se encontró evidencia a favor de los precios como mecanismos para desincentivar el uso del automóvil privado, pues a medida que aumenta el nivel de gasto en transporte por parte de los agentes (dada la imposición de un hipotético peaje urbano), la probabilidad de usar transporte privado disminuye, mientras que la probabilidad de utilizar transporte público increment

Estimation of the acceleration response of a building under earthquake excitation

This master thesis is included inside a project bigger. This project consist in predict the response of a building submitted an earthquake only measuring the first seconds of the earthquake. In order to do that, this big project is divided into small projects with different objectives. First, it is necessary to predict all the earthquake using the first seconds of this earthquake. For do that, one member of the resilience lab of Taiwan has created a prediction model which using some data from the first seconds of an earthquake, estimate the rest of the earthquake. After that, it has to calculate the response of the prototype through any earthquake. With this objective, it has been created a finite element model of the prototype and it has been applied forty earthquakes. For each earthquake, it has been done a modal analysis and it has been obtained the acceleration response of the prototype. This acceleration has been used for calculate the transfer function which relates the acceleration that appears on each floor of the model with the acceleration applied on the base of the structure (the earthquake). In consequence, if a new earthquake happens, using the prediction model it is possible to calculate how big it will be the earthquake after only the first three seconds, and then, using the transfer function, it is possible to calculate the acceleration that will strike the complete structure. So, when a new earthquake appears, it is only needed the first three seconds to know the consequences of this earthquake in a building and, if it is necessary, it is possible to act in order to minimize the damages of the earthquake. The last part of the thesis is based in testing the methodology experimentally. The prototype of the building has been tested in the shaking table and the results has been compared with the results obtained with the finite element model. The objective of this last part is to know if it is possible to predict, with the same precision, the acceleration of a building only using a finite element model of that building than installing some sensors to the building and predict the acceleration using the record of the past earthquakes.Outgoin

Diseño y desarrollo de un simulador de adquisición de entradas digitales y actuadores basado en microcontrolador PIC

El proyecto final de carrera consistirá en el diseño y desarrollo de un simulador de adquisición de entradas digitales gestionada mediante de comunicación puerto serie y Ethernet mediante protocolo UDP. El servicio UDP estará basado en microcontrolador PIC18F mediante el modulo ENC28J60. En este proyecto asimismo se realiza el diseño de un controlador (API) que emulará los drivers de la tarjeta basada en PIC18F y que abstraerá la lógica de bajo nivel, siendo posible su utilización en aplicaciones de alto nivel.Escuela Técnica Superior de Ingeniería de TelecomunicaciónUniversidad Politécnica de Cartagen