Over the last decade, the circular economy (CE) has attracted attention due to the current unsustainable model of production and consumption, which involves an increased resource use and depletion. Agri-food is one of the key sectors where action must be taken to ensure the transition to a more sustainable development model in line with circular economy principles. This study aims to evaluate the potential of implementing the circular economy in the pitahaya agri-food chain in Ecuador. The research was conducted from 2019 to 2021, during which a checklist was applied that included 91 items grouped into nine dimensions: source or supply of materials, design, manufacturing, economic circle, distribution and sales, consumption/use, 4R, remanufacturing, and sustainability. The level of the circular economy evaluated in the study was low (2.14 points out of 5). Therefore, improvements are required in the agri-food management of fruit cultivation and processing. Critical points were identified and strategies were proposed to increase competitiveness, improve environmental performance, and promote the implementation of the circular economy in this production chain. A final recommendation is to explore research on the concept of CE in the sector, mainly focused on the valorization of biomass as a contribution to the bioeconomy in order to contribute to the country’s growth within the context of sustainability.

The strategic members of collaborative supply chain have been looking for actions to synchronize their links. The purpose is to improve the customer service and fulfill the challenges of the globalized competitiveness. This trend is known as integrated supply chain and improves the companies performance as a whole. In this paper, an integration model of collaborative supply chain was developed considering the strategical, tactical and operational perspectives. To implement it, a measurement instrument was designed and validated statistically. Also a mathematical model using fuzzy logic was designed and applied among 36 small, medium and large Mexican companies to determine their integration level and propose specific actions that allow them to improve it.

The use of electric vehicles and their various configurations is seen as a major alternative in efforts towards reducing pollutant emissions from motor vehicles that continue to use fossil fuels. Electric transport technology presents more efficient means of energy conversion in vehicles: electric (EV), hybrid (VH), and hybrid electric (HEV) vehicles. For example, the energy storage system in the latter can be made up of ultracapacitors (UCs), batteries (Bs), and fuel cells. This work focuses on HEVs powered by batteries and ultracapacitors. In particular, the multiple converter configuration (C-CM) for the HEV powertrain system is analyzed using electric models of the vehicle powertrain components. To analyze the multiple converter configuration, parameters of a vehicle taken from the literature and the electrical model of the configuration were developed. With the above, the proposed configuration was evaluated before driving cycles (CITY II and ECE) and the configuration performance was compared with respect to other configurations. In the C-CM model, limitations in the choice of the number of Bs and UCs were observed in the powertrain depending on the maximum power of both energy sources and vehicle load demand. The results show that more energy is extracted from the batteries in the ECE cycle than in the CITY taking into account that the batteries are used as the main power source. C-CM results compared to other configurations show that energy extracted from batteries in the CITY is the same across all configurations. While energy consumption is lower in the ECE, C-CM results were not very significant compared to other configurations. However, the C-MC has the advantage of having better power flow control due to having two converters, thus improving HEV safety.

Vinasse is a toxic pollutant if it is poured into the ecosystem indiscriminately; despite this, it integrates components that make it valuable in nutrients and water. However, its use has been questioned due to the costs involved in its purification. This systematic review focuses on the valorization of vinasse from the studies performed for its post-industrial use. Trends in vinasse management and bioproduct development were analyzed. The PRISMA statement was used as a formal guide for collecting and analyzing 131 studies from 2018 to 2022. We determined that biological processes are the most used to obtain the benefits of vinasse, obtaining up to three post-industrial bioproducts. While it is true that there is a predominant trend of studies focused on the generation of biofuels, it must be noted that the beginning of the sucro-alcohol chain was the agricultural field. In this sense, we determine that 14% of the studies treat vinasse for agricultural reuse purposes, so, under Circular Economy principles, the reincorporation of vinasse into the agricultural field to take advantage of its goodness in nutrients and minerals as a sustainable and eco-efficient alternative should be a research trend that accelerates the consumption of vinasse generated in alcohol distilleries.

13 2.015 7.831 INFLUENCIA DE LOS SÍNTOMAS FÍSICOS SOBRE EL ESTRÉS LABORAL Y FAMILIAR 62 Veces 13 2.015 7.686 APLICACIÓN DE INDICADORES CLAVE DE RENDIMIENTO A LA GESTION DE PROYECTOS 54 Veces 13 2.015 7.535 METABOLISMO INDUSTRIAL INTELIGENTE EN EL PROYECTO DE PRODUCTOS SOSTENIBLES 53 Veces 13 2.014 6.946 LA FORMA LEGAL Y EL ACCESO AL FINANCIAMIENTO DE LAS PYMES INDUSTRIALES 45 Veces 13 2.014 7.008 LA COMPLEJIDAD EN DIRECCIÓN DE PROYECTOS: Dimensiones y marcos de trabajo a nivel internacional 39 Veces 13 2.016 7.943 INFLUENCIA DE LA GESTIÓN DEL ALCANCE EN LOS PROYECTOS DEL SECTOR DE LA CONSTRUCCIÓN 39 Veces jueves, 16 de julio de 2020 Página 1 de 4 29 Veces 13 2.016 7.929 EL ARTE DE CONSTRUIR PUENTES SÓLIDOS: LA MUJER EN CARRERAS DE INGENIERÍA, CIENCIA, TECNOLOGÍA Y MATEMÁTICAS 29 Veces 13 2.014 7.091 MARCO PARA LA VALORIZACIÓN DE RESULTADOS DERIVADOS DE INVESTIGACIÓN Y DESARROLLO 27 Veces 13 2.015 7.266 INNOVACIÓN ABIERTA Y CALIDAD: ¿COMPLEMENTARIEDAD? 27 Veces jueves, 16 de julio de 2020 Página 2 de 4 24 Veces 13 2.015 7.823 DISEÑO Y VALIDACIÓN DE UN CUESTIONARIO PARA ANALIZAR LA PARTICIPACIÓN DE LOS TRABAJADORES EN LA MEJORA CONTINUA 24 Veces 13 2.019 9.086 MODELOS Y PREMIOS DE EXCELENCIA EN LA GESTIÓN: UNA REVISIÓN DE LITERATURA 24 Veces 13 2.015 7.646 PLAN JERÁRQUICO DE PRODUCCIÓN EN UNA CADENA DE SUMINISTRO CON PRODUCTOS DE DEMANDA ESTACIONAL 23 Veces 13 2.015 7.478 GESTIÓN DEL RIESGO DE LOS RECURSOS HUMANOS EN LA CADENA DE SUMINISTRO 23 Veces jueves, 16 de julio de 2020 Página 3 de 4