Examinando por Materia "Fenómeno"

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  • Miniatura
    PublicaciónAcceso abierto
    Estudio de los fenómenos termoluminiscentes
    (2022-11-10) Vargas Vega, Mercedes María; Cogollo Pitalúa, Rafael Ricardo; Maya Taboada, Héctor Roger
    This work is constituted by a bibliographic compilation in the form of a monograph on the phenomenon of thermoluminescence, in which the investigations carried out by the teacher Rafael Cogollo are analyzed and broken down [1], [2], [3], [4 ] in the Physics Program of the University of C´ordoba and the text Numerical and Practical Exercises in Thermoluminescence [5]; that will serve as bibliographic support for future students who choose to do their research work on this topic. It is important to highlight that in this monograph we have improved the model of Randall J. and Wilkins M. [6], commonly known as the one-trap-one-recombination center model, which allows analyzing the first order peaks of the thermoluminescent glow curves. The improvement consists in having obtained an analytical expression to calculate the intensity of these peaks as a function of temperature and in proposing a standard methodology that allows obtaining the kinetic parameters that characterize these peaks. Another characteristic, and in our opinion the most important of this work, is the possibility that the reader has to reproduce all the curves that are used in the analysis of the peaks of first, second and general order of the thermoluminescent brightness curves presented in this monograph.
  • Miniatura
    PublicaciónAcceso abierto
    Uso de las TIG para determinar el análisis de riesgo por inundación en el barrio Remolino del municipio de Santa Cruz de Lorica-Córdoba
    (2022-08-19) Burgos Monterroza, Daniela De Jesús; Aguilar Jiménez, Teonila; Puertas Avilez, Oscar
    The present investigation, Its main objective is to analyze the risk of flooding presented by the inhabitants of the Remolino neighborhood located in the municipality of Santa Cruz de Lorica-Córdoba, from the characterization of the population of this area, taking into account their vulnerability to flooding, being able to identify the factors that influence this to occur. The development of this study was carried out using the explanatory method and a mixed approach, in order to publicize the causes of this problem. Through the implementation of variables and indicators, thus determining the level of threat, vulnerability and risk of flooding. In this way, the degree associated with the threat, vulnerability and risk of flooding was established. In this way, the degree of risk associated with these variables was established, which 39.3% corresponds to a low risk level, distributed in the central part of the study area, 39.2% represents a low risk level. medium which is distributed intermediately to the north and south, 19.3% corresponds to a high risk which is located on the borders of the neighborhood to the south, north and east, finally, the level of risk very high corresponds to 2.2% located south of the Remolino neighborhood. Thus, concluding that the aforementioned variables are associated with the proximity of the residences to the tributaries, the state of the housing, the type of material and inadequate land use in the vicinity of the Chimalito channel and the Sinú river