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Revista Ingenierias

Revista Ingenierías Universidad de Medellín

DOI: 10.22395/rium

Revista Ingenierías Universidad de Medellín is a biennial scientific journal oriented towards building and interdisciplinary academic community among engineers. The journal covers a wide array of interesting topics for different branches of engineering as a contribution to the dialogue between their different specialties among which environmental, civilian and systems engineering can be highlighted. After an editorial decision of looking for topic similarities, we have recently prioritized the reception of contents on engineering in areas like energy, electronic, industrial and materials engineering, which have been consolidating an important presence in our publication..

  • Dynamic simulation of a R,S stock politic of hardware supply chain
    por Andrés Mauricio Paredes Rodríguez el septiembre 15, 2021 a las 12:00 am

    Nowadays, stock management became a strategic decision used by organizations due to the high impact it has on the overall performance of supply chains. This paper evaluates the impact of the implementation of a R, S inventory policy in the finances of a distribution network. The research involves the functioning of a hardware supply chain conformed by a retailer and a manufacturer, which is simulated trough system dyna- mics. The main results of the study validate the positive impact that the policy about network liquidity have. Likewise, it is possible to determine the dominance of parameters such as demand, the review period and the maximum production capacity over the overall performance of the system.

  • Biological and Physiochemical Conditions of the Surface Waters of the Cauca River in the Urban Area of Popayán, Colombia
    por Rafael Mauricio Padilla Moreno el julio 6, 2021 a las 12:00 am

    The homes and companies located on the banks of the Cauca River have altered the conditions of the quality of the water generated by residual discharges. Therefore, this paper proposes to analyze the biological and physicochemical conditions of the surface waters that cross the urban area of Popayán, Colombia, and determine if they are suitable for human consumption. For this, an in-situ sampling was carried out in the two river stations. The two points were covered taking into account the dry and rainy seasons. At each point, the parameters were measured to calculate the contamination indicators. Likewise, Ph, diluted oxygen, conductivity and temperature parameters were measured, also other physicochemical parameters such as total alkalinity, total hardness, total phosphorus and suspended total solids were measured as well as the microbiological parameters like total coliforms. It was found that the water source contains high levels of pollutant load and that biological discharge is one of the main causes that alters the quality of the water for drinking. The number of macroinvertebrates in the river decreases by 48% as the river advances through the urban area of the city. According to the BMWP values, highly contaminated carbonated waters enter the urban area. However, due to the flow throughout the water source, the Cauca River can regulate the pollution load according to the result evidenced in the Icomi, Icomo, and Icosus indices.

  • LexRank with threshold to identify EF-ISF navigation patterns in xMOOC of Open edX
    por Fabián Andrés Ancona Anacona el junio 28, 2021 a las 12:00 am

    The use of the Open edX platform to offer xMOOC courses by different Universities in the world, has led to a growth in the participation of students in the courses, thus generating a set of navigation patterns when interacting with the xMOOC which are recorded in the tracking.log file. So far there is no study that identifies EF-ISF navigation patterns of the set of patterns, for this reason in this document propose the use of the LexRank with Threshold algorithm for the identification of the EF-ISF navigation patterns.

  • ICT and Educational Innovation: Demands and Expectations
    por Mary Cristina Carrascal el junio 28, 2021 a las 12:00 am

    In the development of the research project "Strengthening and expanding the coverage of postgraduate training in Educational Innovation with ICTs through virtual education strategies relevant to the socio-cultural context of the region", the meaning of Educational Innovations for teachers was investigated. Through 7 focus groups, with the participation of 168 teachers from urban and rural schools, public and private schools, as well as teachers in training, schoolteachers and university professors, from 3 different departments in southwestern Colombia, it was identified, through the use of the grounded theory analysis method, that teachers associate educational innovations with changes in the way they teach in their classes. In this way, the incorporation of ICTs is seen as important, since it facilitates teaching processes, motivates learning and improves the quality and pertinence of education.

  • Architecture proposal for MOOC and wearable integration
    por Marlon-Felipe Burbano-Fernandez el junio 28, 2021 a las 12:00 am

    Conference Derivative Article. Every day, people need to be trained, either to complement their professional skills or because of personal interests that lead to their well-being. Online education, especially MOOC and SPOC are good alternatives for carrying out continuing educational processes, but are not enough when it comes to learning motor skills. This paper shows a research approach on how MOOC can expand its functionalities so that it can be applied to learning motor skills. It also proposes the development of a project to integrate three components: the integration component, the wearable component and the open edX component for the future development of a "salsa" course. Finally, it proposes an architecture based on the 4+1 view model, where the functionality in different areas of the design is shown.

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