REVISTA DE CIENCIAS TECNOLÓGICAS最新文献

{"title":"Diseño y desarrollo de dispositivo de sujeción hidráulica para el proceso de brochado","authors":"Jorge Alberto Morales Martínez, Carlos Alberto Marin Álvarez, Raúl Pérez Bustamante","doi":"10.37636/recit.v6n4e321","DOIUrl":"https://doi.org/10.37636/recit.v6n4e321","url":null,"abstract":"Se desarrollo un dispositivo de sujeción hidráulica para el proceso de brochado de Brackets usados en los sistemas de frenado de automóviles, que permite reducir la variación del proceso de corte al mejorar el sistema de sujeción y con ello limitar la deformación de la pieza luego de haber sido procesada. Con este concepto de dispositivo es posible mejorar las condiciones del proceso de producción, como lo son: velocidad de corte, reducción de tiempo ciclo, rendimiento de la operación, reducción de costo de scrap, y reducción de tiempo muerto por sobre ajuste de proceso y cambio de modelo. Adicional, se hizo el desarrollo de un sistema de detección de pieza presente que permite captar cuando una pieza no es colocada correctamente en el dispositivo antes de iniciar el ciclo de corte, con esto es posible detectar fallas en el proceso que representen un riesgo para la operación. Durante la etapa de diseño se realizó una simulación del proceso de maquinado en condiciones extremas y condiciones ideales para medir la deformación de la pieza y con esto obtener los parámetros adecuados de corte para la puesta en marcha del dispositivo de sujeción. Para la validación del modelo, se realizó un estudio de habilidad de proceso Cpk y Ppk (acorde a los requerimientos de cliente) para evaluar que el nuevo proceso es eficiente y se encuentra bajo control.","PeriodicalId":216225,"journal":{"name":"REVISTA DE CIENCIAS TECNOLÓGICAS","volume":"190 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139282688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study of waste generation polystyrene based in Misantla, Veracruz from the circular economy","authors":"Romeo García Cruz, David Reyes González, Yodaira Borroto Penton, Neira Sánchez Zárate, Yensy Fernandez Penton, Cleotilde Anahí Álvarez Contreras","doi":"10.37636/recit.v6n4e313","DOIUrl":"https://doi.org/10.37636/recit.v6n4e313","url":null,"abstract":"Recently, the excessive generation of plastic waste and its inadequate management have represented a problem worldwide. Petrochemical plastics, which account for 80% of the world's total plastic use, are the main pollutants. With the growth of the population and its needs, the generation of polystyrene waste increases considerably. Expanded polystyrene (EPS) has a very low recycling rate; it is estimated that, of 125 thousand tons generated annually in Mexico, only 0.1% is recycled. The objective of this project is to obtain a preliminary diagnosis on the generation of EPS waste in the city of Misantla, Ver., which allows its post-consumer use as recycled raw material, under a circular economy approach. The methodological proposal for the development of this research was defined in the following steps: (1) characterization of the participating actors, from the Circular Economy approach; (2) identification of businesses that generate polystyrene as waste; (3) determination of the type of polystyrene generated; (4) estimation of the quantities of waste generated; (5) analysis in comparison with the generation of other types of waste; (6) generation of post-consumer use strategies. According to the 2019 Economic Census, in Misantla the economic sector with the largest number of economic units in the municipality is retail, where it is located, the sale of food in small establishments or street stores, these agents being identified as the main generators of polystyrene waste. A survey was applied to 96 companies, mainly in the food sector. The results of these surveys show that these establishments mainly use disposable products made of expanded polystyrene such as plates and cups, and that, in some cases, the use of disposable polystyrene products such as containers and spoons was identified. With the information collected, it is concluded that the use of disposable products generates approximately 765 kilograms of EPS waste. Unlike plastic waste, misinformation about the recycling of EPS, the lack of strategies for its collection and post-consumer use, as well as the lack of awareness for its recycling, give way to it ending up in final disposal sites, continuing with the trend framed in different investigations that maintain that its final destination is incineration. After the diagnosis, there is a concrete vision of the generation of polystyrene waste and future work is given in the generation and implementation of strategies that allow the use of post-consumer unicel for its return to the value chain.","PeriodicalId":216225,"journal":{"name":"REVISTA DE CIENCIAS TECNOLÓGICAS","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139287944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable practices for the efficient use of green energy in Ciudad Juárez SMEs","authors":"Georgina Elizabeth Riosvelasco Monroy, Alicia Rojas-Ramírez, Salvador Noriiega-Morales","doi":"10.37636/recit.v6n4e265","DOIUrl":"https://doi.org/10.37636/recit.v6n4e265","url":null,"abstract":"Carbon emissions have been increasing due to economic growth and development. Fossil-based energy is one of the main factors of environmental pollution. In Mexico, 77.24% of fossil-based energy is from stationary source combustion, 15.7% from industry processes and commercial activities, 6.64% from mobile sources, and 0.05% from agriculture and livestock activities. Specifically, manufacturing operations use 33.4%, of the total consumption of electricity and natural gas. Because the production of green energy is from naturally regenerating sources and does not emit greenhouse gases or compounds, decreases the environmental impact, and because they are able to apply to manufacturing operations, it is pertinent the efforts in this sense. The article presents the PRISMA 2020 as a methodology for searching between distinct databases and current research with the objective of identifying variables and their measurements so micro, small, and mid-size enterprises in Ciudad Juarez, Chihuahua, Mexico can develop collaboration strategies towards a sustainable manufacturing environment. The literature review resulted in the identification of six green energy indicators and their measurements.","PeriodicalId":216225,"journal":{"name":"REVISTA DE CIENCIAS TECNOLÓGICAS","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139289771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Control de seguimiento de robot móvil rodante en campo de velocidad con evasión de obstáculos","authors":"L. A. García, Ricardo Pérez Alcocer, Gilberto Ramos","doi":"10.37636/recit.v6n4e266","DOIUrl":"https://doi.org/10.37636/recit.v6n4e266","url":null,"abstract":"Los vehículos no holonómicos, es decir, aquellos vehículos que tienen restricciones de movimiento o no pueden seguir cualquier trayectoria deseada, son empleados en una amplia gama de actividades, tanto en la vida cotidiana como en ambientes industriales. En este trabajo se presenta una estrategia de navegación para vehículos tipo uniciclo, basada en campos potenciales de velocidad. La validación de la estrategia de navegación se realizó empleando simulación numérica y experimentos en la plataforma de prueba. Los resultados obtenidos muestran que el método estudiado cumple con la tarea asignada.","PeriodicalId":216225,"journal":{"name":"REVISTA DE CIENCIAS TECNOLÓGICAS","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139314300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Método Taguchi para la optimización de parámetros en la simulación numérica del proceso de inyección de plástico","authors":"Elva Lilia Reynoso Jardón, Manuel de Jesús Nandayapa Alfaro, Quirino Estrada Barbosa, Oscar Tenango Pirin, Yahir DE Jesus MARIACA BELTRÁN, Jacinto Fraire Bernal, Carlos Sebastian González Miranda","doi":"10.37636/recit.v6n4e269","DOIUrl":"https://doi.org/10.37636/recit.v6n4e269","url":null,"abstract":"El trabajo plantea el uso de Método Taguchi para la optimización de parámetros en la simulación numérica del proceso de inyección de plástico para reducir el desplazamiento total en el producto. Se identificaron las variables de temperatura de derretimiento, tiempo de enfriamiento, tiempo de llenado, y tiempo de mantención. Se plantea la utilización de diseño de experimentos de Taguchi de tres niveles y cinco factores, que suman un total de 27 iteraciones del experimento. El análisis de señal a ruido determinó que los dos parámetros más influyentes en la disminución de desplazamiento fueron temperatura de derretimiento y tiempo de mantención de presión. Tras el análisis de la varianza y la interpretación de gráficas de señal se plantearon dos experimentos cuyos valores demostraron una mejora de 27 % (5.0349 mm) y 31.43% (4.7485 mm), respectivamente, en comparación a los valores de control (6.9252 mm). Mediante el uso de las herramientas permite. Mediante el uso de Taguchi y SolidWorks plastic se logró disminuir la variación de la deformación y la detección de las principales variables que afectan en el proceso de llenado de la pieza aplicando el método propuesto.","PeriodicalId":216225,"journal":{"name":"REVISTA DE CIENCIAS TECNOLÓGICAS","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139314847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and finite element analysis of a 3D-printed packaging insert","authors":"Ismael Alejandro Muñoz Salazar, I. E. Garduño Olvera, M. Del Angel-Monroy","doi":"10.37636/recit.v6n3e254","DOIUrl":"https://doi.org/10.37636/recit.v6n3e254","url":null,"abstract":"Packaging inserts play a crucial role in protecting products during transportation. However, their design and production processes often rely on conventional methods limiting equipment capabilities. Moreover, the empirical nature of their design can result in a lack of reliability in the final product. To address these challenges, this study aimed to validate the design of a packaging insert using the finite element method and subsequently create it using 3D printing. The chosen material is a thermoplastic polyurethane (TPU) filament commonly used in fused deposition filament printers for 3D printing. This process demonstrates the feasibility of using 3D printing to create cushioning inserts for packaging and employing finite element analysis to simulate the insert behavior. The main findings of this research highlight the potential benefits of numerical simulation, revealing the areas where the insert is primarily impacted by weight. Furthermore, the forces load and displacement simulation results confirm that the TPU elastic limit (3.9x106 MPa) is sufficient to handle the weight this insert intends to hold. These tools determine the viability of the proposed design for its intended application. Therefore, this study verifies that 3D printing is a reliable option for producing packaging inserts, offering significant advantages over traditional methods. These advantages include increased design flexibility and the ability to create custom inserts on demand.","PeriodicalId":216225,"journal":{"name":"REVISTA DE CIENCIAS TECNOLÓGICAS","volume":"196 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139360678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relación entre el crecimiento y la temperatura en la punta de la grieta por fatiga en acero AISI 1018","authors":"Darío Antonio García Lavariega, Arturo Abúndez Pliego, Christian Jesús García López, Jan Mayén Chaires","doi":"10.37636/recit.v611427","DOIUrl":"https://doi.org/10.37636/recit.v611427","url":null,"abstract":"En este artículo se presenta un estudio sobre la relación que existe entre el comportamiento del crecimiento de grieta por fatiga y la evolución de la temperatura en la punta de grieta en un acero AISI 1018. Tanto la longitud de la grieta como la temperatura se obtuvieron experimentalmente de ensayos de fatiga de acuerdo a la norma ASTM E647. La temperatura se midió simultáneamente a través de termopares y termografía infrarroja, mientras que la longitud de la grieta se midió a través de un microscopio. Los datos experimentales se procesaron para obtener curvas de ciclos contra temperatura y ciclos contra longitud de grieta para posteriormente correlacionar la información y obtener, por regresión lineal de los datos experimentales, un modelo para relacionar la temperatura con la longitud de la grieta. Los resultados muestran que el modelo propuesto está en buena concordancia con los datos experimentales y permite estimar la tendencia y la magnitud de la temperatura al crecer la grieta.","PeriodicalId":216225,"journal":{"name":"REVISTA DE CIENCIAS TECNOLÓGICAS","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132521039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Análisis del comportamiento de la distorsión armónica de corriente en inversores interconectados a la red eléctrica, mediante el uso de metodología de diseño experimental","authors":"Adán Alberto Jumilla Corral, Zulma Yadira Medrano Hurtado, Pedro Mayorga Ortiz, Hernán Daniel Magaña Almaguer, Mario Alberto Camarillo Ramos","doi":"10.37636/recit.v61113","DOIUrl":"https://doi.org/10.37636/recit.v61113","url":null,"abstract":"En este trabajo de investigación se realizó un estudio del comportamiento de la distorsión armónica de corriente en un nodo de carga alimentado por la red pública de energía eléctrica y por inversores interconectados al mismo nodo. El análisis se desarrolló a través de un diseño experimental, empleando herramientas estadísticas como el análisis de la varianza y arreglos factoriales completos, aplicados a datos experimentales obtenidos mediante la configuración de un banco de pruebas con un punto de acoplamiento común con la carga, donde se integran las potencias de la red y de los sistemas renovables (fotovoltaicos), a través de inversores electrónicos. Los resultados obtenidos muestran que el impacto en la distorsión armónica de corriente en el nodo de carga depende mayormente del tipo de inversor utilizado y de la carga conectada al nodo. Además, los flujos de armónicas aparecen en mayor medida en la red del suministrador en comparación con las armónicas presentes en las cargas conectadas al nodo bajo estudio.","PeriodicalId":216225,"journal":{"name":"REVISTA DE CIENCIAS TECNOLÓGICAS","volume":"197 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121081503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Virtualization of teaching in design: analysis of an academic exercise focused on an electronic toy","authors":"Alejandro Daniel Murga González","doi":"10.37636/recit.v54453460","DOIUrl":"https://doi.org/10.37636/recit.v54453460","url":null,"abstract":"The present work aims to analyze from a pedagogical approach the controversy of the virtualization of teaching in design disciplines based on an academic exercise developed from 2020, the year of the beginning of the COVID-19 pandemic; within the framework of several collegiate courses of the Industrial Design educational program, Faculty of Engineering Sciences (FCITEC) of the Autonomous University of Baja California (UABC). For this, recognized authors in the field of pedagogy and its crossover with the discipline of Design are considered; as well as the implementation of concepts such as interface, to give a schematic explanation of the interactive process of teaching and learning and teaching practice.","PeriodicalId":216225,"journal":{"name":"REVISTA DE CIENCIAS TECNOLÓGICAS","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126753751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal and luminic comfort assessment in university classrooms in Tijuana, Baja California. Case of study FCITEC, Valle de las Palmas","authors":"María Teresa De la Cruz Chaidez, José Francisco Armendáriz López, Francisco José Martín del Campo Saray, Miguel Isaac Sahagún Valenzuela, María Cristina Castañón Bautista, Carmen García Gómez","doi":"10.37636/recit.v54419452","DOIUrl":"https://doi.org/10.37636/recit.v54419452","url":null,"abstract":"About 2022, studies on environmental conditions inside classrooms have increased because they are related to well-being, performance, and student productivity in terms of concentration, attention, and learning during school hours. Assessing the conditions of the educational space once inhabited can be fundamental to identifying environmental adjustments that could improve achievement in learning through design strategies in school facilities in the locality. The evaluation of the thermal and luminic conditions of three classrooms designed to function with natural ventilation, in two buildings of the Universidad Autónoma of Baja California, in Tijuana, Mexico, during the cold-warm transition period is presented. Physical measurements of environmental indicators were made, including temperature, relative humidity, and daylight. A total of 181 students completed the environmental survey questionnaires. This study aimed to evaluate the interior environmental space conditions and determine the influence on occupants' comfort. Results showed that more than 50% of the students were in a thermal discomfort situation when the temperature was out of the range of 19.7°C -27.7° C, consistent with the application of the ASHRAE Adaptative Comfort Zones. Daylight values were below the minimum required of 300 Lux for educational classroom specificity in [1, 2] of the three classrooms. Building's orientations, West and South registered illuminance values that could produce glare and increase thermal discomfort due to high solar radiation. The results confirmed the close relationship between environmental conditions and students' comfort in classrooms.","PeriodicalId":216225,"journal":{"name":"REVISTA DE CIENCIAS TECNOLÓGICAS","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116145057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}