2017: 6th Engineering, Science and Technology Conference - Panama (ESTEC 2017)6th Engineering, Science and Technology Conference (ESTEC 2017) organized by the Universidad Tecnologica de Panama (UTP)https://ridda2.utp.ac.pa/handle/123456789/37662024-03-29T07:15:03Z2024-03-29T07:15:03ZModel for Knowledge Management with the Ontological Approach in Social Networkshttps://ridda2.utp.ac.pa/handle/123456789/44032021-07-06T16:47:40ZModel for Knowledge Management with the Ontological Approach in Social Networks
The article shows the results of the structure of collective knowledge management (CKM), defined from the concept of research management of research groups in the university with the use of a semantic algorithm. The process begins with the creation of a site in the social network facebook with the subject of the investigative management in the university. Through a structure of dimension given by profile, role, category and subcategory making direct connection with a relational database called MySQL. Through the application of metadata and algorithm is expected to obtain the lessons learned from these groups during the development of their projects. The result is the proposal of a functional scheme that allows the design and creation of a collective knowledge management model as support for university research. Keywords: Knowledge management, Collective knowledge, Knowledge model, Scientific Production
Monitoreo de Dinoflagelados Causantes de Ciguatera en las Aguas de Punta Galeta, Colón, Panamáhttps://ridda2.utp.ac.pa/handle/123456789/44002021-07-06T16:47:40ZMonitoreo de Dinoflagelados Causantes de Ciguatera en las Aguas de Punta Galeta, Colón, Panamá
Los océanos son la clave para la conservación de la vida y son la conexión para los ecosistemas y el mercado mundial. Los seres humanos somos atraídos a las zonas costeras por los múltiples beneficios que nos brinda, siendo el principal la pesca. A través de los productos del mar que consumimos, podemos resultar contaminados con toxinas que producen unos microorganismos acuáticos llamados dinoflagelados que a su vez pueden causar la enfermedad ciguatera. En Panamá dentro el Paisaje Protegido de Punta Galeta se está realizando una investigación desde junio 2016 hasta la fecha y se han encontrado tres géneros de dinoflagelados que pueden causar esta enfermedad (Gambierdiscus, Prorocentrum y Ostreopsis), siendo el primero el más abundante. Los datos obtenidos de pH en campo van en un rango de 8.02 hasta 8.63 siendo estos de poca variación, mientras que en los análisis de laboratorio para estos mismos cinco puntos se han obtenido datos en un rango de 7.89 a 8.33. Ambos resultados indican que las condiciones de pH para Punta Galeta son buenas ya que estudios previos determinan que el agua de mar presenta, de forma estable, pH comprendido entre 7-9 unidades, siendo 8 unidades el valor normal en superficie.Palabras claves: Ciguatera, dinoflagelados, mariscos, pH, algas.
Comparación y Efecto del Homogenizado en Billets de Aluminio AA 6063https://ridda2.utp.ac.pa/handle/123456789/43932021-07-06T16:47:40ZComparación y Efecto del Homogenizado en Billets de Aluminio AA 6063
The lack of comparative studies about the distribution of the main alloying elements along aluminum billet´s AA 6063 widely use in extrusion companies to produce aluminum profiles, It makes necessary to counterpoise the difference between homogenized billet produced in horizontal continuous casting machine and a billet produced in vertical semi-continuous casting process. Applying spectrometric tests to quantify the weight percent of main alloying elements, brings out its own nature of each production process on every billet. Nevertheless, helped out by a metallographic test reveals in one billet the negative effect of an inadequate process of homogenization after the heat treatment process T5 in the aluminum profiles that holds it back to reach an adequate Webster hardness related to quality assurance. It reflects that is not enough to have a billet with a uniform chemical composition but the importance of an adequate billet´s heat treatment in order to be use in the extrusion process.Keywords: AA 6063, Billet, Comparison, Homogenized
Experimental Study of a natural ventilation strategy in a Full-Scale Enclosure Under Meteorological Conditions: A Buoyancy-Driven Approachhttps://ridda2.utp.ac.pa/handle/123456789/43902021-07-06T16:47:40ZExperimental Study of a natural ventilation strategy in a Full-Scale Enclosure Under Meteorological Conditions: A Buoyancy-Driven Approach
The performance of a natural ventilation strategy, in a full-scale enclosure under meteorological conditions is studied through an experimental study, a buoyancy-driven approach, by means of the estimation of the air exchange rate per hour and ventilation power. A theoretical and an empirical model are proposed based on the airflow theory in buildings and blower-door tests. A preliminary validation, by comparing our results with standards in air leakage rate determination, is made. The experimental study conducted here has shown that the natural ventilation strategy implemented reach promising air exchange rate levels, as they are rather high compared to other experimental studies found in the literature. The proposed models have shown good potential and further analysis should take place. Also, other methods for validating these models should be implemented (for instants: CFD simulation or tracer gas methods), as the one in the standards is rather rough estimations.Keywords: Buoyancy-driven, natural ventilation, ventilation power, blower-door test, airflow in buildings.