Facultad de Arquitectura, Diseño y Artes
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Integration of renewable energies in conventional power systems based on computational reliability

2019 , Cumbajín Alferez, Myriam , Ramírez L. , Gordón C.

We report the successful computational reliability of integrating renewable energy into conventional electric power systems. According to renewable resources available in the province of Imbabura in Ecuador, where there are sufficient renewable resources to generate clean energy with three types of technology, such as wind energy, photovoltaic solar energy and thermoelectric energy. We have been able to conduct two fundamental case studies, and then calculate reliability indices using the non-sequential Monte Carlo method using Matlab programming. The reliability indices allowed us to evaluate the reliability of the system. Due to the fact that the lower the reliability index, the higher the reliability of the system. As a result, this paper provides a promising method for increasing the reliability of electric power systems and supporting the future integration of renewable energies. © 2019, Associacao Iberica de Sistemas e Tecnologias de Informacao. All rights reserved.

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Development and Evaluation of a Computerized Didactic Guide with Mathematical Foundations for the Teaching-Learning of Physics

2023 , Balladares-Pico L.M. , Espinosa-Pinos C.A. , Núñez Torres, María Giovanna

The present research aims to implement a computerized guide for the development of meaningful learning of mathematical foundations for learning Physics. It is based on a quantitative approach with a quasi-experimental design with a descriptive/explanatory scope. The population is made up of 20 first year high school students of the Luis A. Martinez Educational Unit; for the quantitative approach, the type of sample is intentional, therefore, 20 first year high school students have been considered. The research technique used is the survey addressed to students and teachers, with the questionnaire as an instrument validated by means of the expert judgment technique. The reliability and validity of the instrument applied was determined by means of Cronbach's Alpha test, obtaining a value of 0.936, which indicates a high level of internal consistency as well as reliability, and validity by means of expert judgment. The results obtained show that there were significant differences between the pre-and post-test after applying the computerized didactic guide and, therefore, it is concluded that this proposal is valid to be implemented in traditional education scenarios and thus ensure the significant learning of Physics in the first year of high school. © 2023 IEEE.

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Multiband Broadband Modulator Implementation on Field-Programmable Gate Array

2020 , Castro, C. , Gordón, C. , Encalada, P. , Cumbajín Alferez, Myriam

The proper management of resources available in FPGA’s is one of the main issues that designers must consider when implementing a high bandwidth communications system. For this reason, we report the hardware-efficient implementation, for mapping stages and pulse shaping, of broadband multi-level QAM signals, in Field-Programmable Gate Array (FPGA) devices. The process for designing the system is based on the large capacity of analog-digital (ADC) converters that exist today, in this case the ADC has a sampling rate of 5 GSPS, which allows the transmission of signals with bandwidths of about 2.5 GHz. The model implements in the same polyphase FIR structure multiplier-less the mapping schemes Q-PSK, 16-QAM, 64-QAM y 256-QAM together with the RRC filter. As a result, this implementation shows that the proposed architecture eliminates the use of dedicated multipliers which would be around 3150 if conventional methods were used. The Error Vector Module is used as a figure of merit in the selection of the RRC filter and the digital quantization levels. We achieved the target frequency for hardware operation at 312.5 MHz con un factor de interpolation de 16 and an EVM < 2%. Also, Hardware Description Language (HDL) models are validates in test benches with reference to the finite precision models of Simulink. © 2020, Springer Nature Switzerland AG.

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Analysis of Adobe Block Manufacturing Techniques

2023 , Molina M.A.R. , Carvajal E. , Jara Garzón, Patricia , Sanz D. , Freire L.

Historically, adobe blocks have been one of the most widely used materials in Ecuador's vernacular architecture due to their low cost and properties. However, in the last decades, its use has decreased as well as the manufacturing expertise. This article focuses on analyzing the adobe manufacturing process in the province of Cotopaxi. We propose a three-stage methodology: 1) documentary bibliographic stage of adobe manufacture and regional regulations. 2) observation stage in local adobe factories identifying the processes and raw material; 3) analysis stage of adobe raw material and experimentation of the material. The documented information facilitates the understanding of adobe manufacturing processes, achieving a reference repository that contributes to sustainable development by using low impact construction materials that are easy to incorporate into architecture. © 2023 IEEE.

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ICT and Augmented Reality in Baños de Agua Santa-Ecuador, Tourist Attractions Generation

2024 , Oleas-Orozco, José , Jara Garzón, Patricia , Castillo F. , Amaluisa P.

Tourism in Ecuadorian context contributes to 2% GDP’s country, it has great potential for growth and exploitation thanks to geographical, natural, cultural, heritage and social factors, among others. These resources are very attractive for internal and external tourism. Baños de Agua Santa, is one of main destinations for local tourists and visitors. Its geographical location, climate and volcanic, mountainous and fluvial landforms have made the place a great interest tourist center. The natural attractions have given way to inhabitant’s initiative for man-made tourist attractions creation, a category part of World Tourism Organization UNWTO classification”. In this way, “Dinosaurs Park” analysis is presented, a theme park, man-made tourist place, which is mainly supported on ICT use, multimedia, offline web APPs and augmented reality AR, for playful learning experiences generation about prehistoric species not native from the area. The AR Through a mixed, quantitative and qualitative approach, information has been obtained on theme park visitors use and satisfaction showing over 90% of positive ratings. The AR applied in theme park, through mobile devices, shows information about prehistoric species, generating entertainment family experiences and significant knowledge in visitors. The results highlight the place's positive economic benefits since the post-pandemic economic reactivation. © 2024, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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Tití App, an Interactive Psycho-Pedagogical Recovery Tool: A Pilot Study

2022 , Gordón J. , Caicedo, Andrés , Subia Arellano, Andrés

The acquisition of reading and writing is a complex and decisive process for the knowledge appropriation of children and their culturalization; similarly, the number of children who do not achieve the expected literacy level for their age and schooling is also a matter of concern. One of the explanations lies in the learning situation, which regularly develops in a classroom. Nowadays, the incorporation of new technologies that include smartphones and tablets as learning-enhancing resources is crucial. Due to the absence of contextualized tools for the Ecuadorian population, Tití application is proposed. It is focused on reducing the errors in children’s reading by solving tasks that are based on the errors determined in the literacy analysis test, TALE, in a contextualized and motivating digital scenario. The user-centered design is the basis for the construction of this tool with characteristics that are specific to Ecuador such as the use of the Spanish language in an Ecuadorian context, navigation on a map of Ecuador, and rescue of endangered endemic animals. This allows children to identify with their environment and engage in the dynamics of the tool. In the research, a repeated measures study design was applied to assess statistically significant differences between a first and second evaluation. A marked decrease in the number of errors in the elements of the TALE test can be observed. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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University Extension in Architecture: Strategies adopted by COVID-19

2022 , Cabrera Gómez, Juan Daniel

Latin-American universities have reacted during pandemic times by implementing strategies not only virtual (Bedoya-Dorado, Murillo-Vargas, y González-Campo, 2021), the actions adopted over the road have allowed that the programme of extension continues being performed in other ways and to consider as not a requirement the permanent presential link with the community. The goal of the research is to analyze the strategies developed in community projects of University Extension in Architecture developed in seven Latin-American countries. The inquiry presents a methodology with combined strategies (Groat y Wang, 2013) that includes a literature review of primary and secondary sources, cases of study and interviews. This papers contains cuali-cuantitative data related to modes of working, alternatives of virtual communication in social media and elaborated knowledge of seven community projects selected from online activities developed by Architectural Latin-American universities in Costa Rica, México, Colombia, Ecuador, Chile y Argentina. The study found that the compilation of projects done last year and few years ago are the most used modes of working, also, digital material, Facebook pages and YouTube channels are the alternatives for virtual communication and finally, that digital publications and videos are the elaboration (Cano e Ingold, 2020), production (Salvatierra, 2003), (Cohen, 2014), (Martínez y García, 2019) and construction (Bolaños y Aguilera cited by Martínez y García, 2019) of knowledge. © 2022 The authors.

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Vernacular Passive Strategies for Sustainable Houses in the Andean Ecuadorian Context

2022 , Ormaza M.V. , Moya Vicuña, Susana , Monar E.

Sustainability and thermal comfort in developing countries could be hard to achieve due to the high cost of standardized construction methods, such as reinforced concrete and steel framed structures. As a result, most dwellings ignore the basic principles of livability and sustainability promoting a high demand of external construction resources and using elevated quantities of energy during its operative life. The purpose of this paper is to analyze passive and vernacular strategies for typical active thermal comfort as alternatives for low rise housing in the Andean region of Ecuador by using rammed earth walls as thermal mass elements. This research aims to reach the minimum comfort levels stablished by INER and ASHRAE 90.1 envelope requirements for climate zone 4C (temperate continental). © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Tiktok as a Learning Tool for Elementary School Students

2023 , Amaluisa Rendón, Paulina Magally , Espinosa-Pinos C.A. , Núñez-Torres M.G.

The large number of users of the social network Tiktok worldwide and the studies that demonstrate the advantages of its use in relation to its educational capacity encourage us to seek new ways of teaching. The present study was conducted at the Indoamerica Educational University in the city of Ambato-Ecuador during the 2021–2022 school year, comparing the motivation of students of General Basic Education: specifically, Basic Middle (Sublevel 3): fifth, sixth and seventh grade corresponding to boys and girls of 9, 10 and 11 years old respectively, and the use of Tiktok as a learning tool demonstrated in their academic performance. Group A has used Tiktok as a tool for the development of academic activities, while group B has not used it. A quantitative methodology was used with a descriptive-inferential procedure and a qualitative analysis through interviews with educators. A pre-test and a post-test were carried out to demonstrate the children's motivation at the end of the school year. It is confirmed that the children who used Tiktok as a learning tool consider themselves more motivated and show a greater dedication to the proposed subject matter than children who do not use it, which is evidenced in their academic record. On the other hand, the teachers interviewed expressed heterogeneous opinions. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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Dataset on the thermal performance of green roofs and green walls in a temperate continental climate: An experimental approach in Quito, Ecuador

2025 , Villacis Ormaza, Marcelo

This dataset comprises temperature and humidity measurements obtained from two experimental building prototypes designed to characterize the thermal behavior of green roofs and green walls in a temperate continental climate. The data was collected at an elevation of 2850 m above sea level in Quito, Ecuador (−0.120694, −78.498677). At 15-min intervals, calibrated digital sensors recorded the temperature and relative humidity indoors over the course of four months. Values from two configurations are included in the dataset: one that integrates green infrastructure and another that acts as a base case devoid of vegetation. With possible uses for building simulations, urban climate studies, and policy creation, the data are organized to promote study on thermal comfort, energy efficiency, and sustainable construction methods.

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