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Browsing by Autor "Amilkar Ilaya-Ayza"

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    Análisis de las causas que originan el suministro de agua intermitente, caso de estudio: zona sur de la ciudad de Oruro (Bolivia)
    (Universidad de Guanajuato, 2017) Amilkar Ilaya-Ayza; Rafael Pérez‐García; Carlos Roberto Martins; Joaquín Izquierdo; Enrique Campbell
    Generalmente, los sistemas con suministro intermitente son diseñados para trabajar inicialmente bajo suministro continuo. Sin embargo, por diversas causas las empresas de agua adoptan el suministro intermitente. En el presente artículo se analiza este proceso de transición, de suministro continuo a intermitente. En el primer caso de estudio se evalúa la presencia de nodos favorables y nodos desfavorables en una red con suministro intermitente; esta clasificación permite comprender la inequidad en la entrega de agua y las causas de su falta en los nodos desfavorables, situación que puede ser interpretada de modo erróneo como escasez física de agua. En el segundo caso de estudio se reconstruyen las etapas de ampliación de la red del subsistema sur de Oruro, con base en las cuales se calcula la capacidad de la red y el requerimiento de agua de la población; ambos valores son comparados para establecer la etapa desde la cual el suministro es intermitente.
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    Consistent clustering of entries in large pairwise comparison matrices
    (Elsevier BV, 2018) Julio Benítez; Silvia Carpitella; Antonella Certa; Amilkar Ilaya-Ayza; Joaquín Izquierdo
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    Gradual transition from intermittent to continuous water supply based on multi-criteria optimization for network sector selection
    (Elsevier BV, 2017) Amilkar Ilaya-Ayza; Carlos Roberto Martins; Enrique Campbell; Joaquín Izquierdo
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    Implementation of DMAs in Intermittent Water Supply Networks Based on Equity Criteria
    (Multidisciplinary Digital Publishing Institute, 2017) Amilkar Ilaya-Ayza; Carlos Roberto Martins; Enrique Campbell; Joaquín Izquierdo
    Intermittent supply is a common way of delivering water in many developing countries. Limitations on water and economic resources, in addition to poor management and population growth, limit the possibilities of delivering water 24 h a day. Intermittent water supply networks are usually designed and managed in an empirical manner, or using tools and criteria devised for continuous supply systems, and this approach can produce supply inequity. In this paper, an approach based on the hydraulic capacity concept, which uses soft computing tools of graph theory and cluster analysis, is developed to define sectors, also called district metered areas (DMAs), to produce an equitable water supply. Moreover, this approach helps determine the supply time for each sector, which depends on each sector’s hydraulic characteristics. This process also includes the opinions of water company experts, the individuals who are best acquainted with the intricacies of the network.
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    La curva de consigna, una herramienta útil para la esqueletización, sectorización y determinación de la capacidad de una red de suministro de agua
    (Universidad de Guanajuato, 2017) Amilkar Ilaya-Ayza; Joaquín Izquierdo; Rafael Pérez‐García; Carlos Roberto Martins; David Ayala–Cabrera
    La curva de consigna es una herramienta bastante utilizada en la optimización energética de los sistemas de agua potable que trabajan por bombeo. En el presente trabajo se analizan otras aplicaciones como la esqueletización, la sectorización, la determinación de la capacidad de la red y los procesos de incremento de la demanda debido al crecimiento urbano horizontal y/o vertical. Asimismo, se estudian sus características cuando existe la presencia de fugas, cambios de la presión mínima y cambios en la rugosidad de la red. Estas propiedades y aplicaciones potenciales convierten a la curva de consigna en una herramienta muy útil para la planificación, diseño, gestión y mantenimiento de las redes de suministro de agua.
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    Sectorizaciin de redes de abastecimiento mediante la implementaciin de mapas auto organizados (Sectorization of Supply Networks Through the Implementation of Self Organized Maps)
    (RELX Group (Netherlands), 2017) Carlos Martins; Enrique Campbell; Amilkar Ilaya-Ayza; Bruno Brentan; Joaquín Izquierdo
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    Structural Model for Socially Sustainable Public Housing Decision-Making in Chile
    (Multidisciplinary Digital Publishing Institute, 2023) Leonardo Sierra; Maximiliano Lizana; Catalina Pino; Amilkar Ilaya-Ayza; Briguitte Neculman
    Normally the social approaches addressed in public housing policies are unclear in the implementation processes. Indeed, public agencies do not have systems that integrate clear social criteria to consider the social assessment of public housing projects. Therefore, the inclusion of social sustainability in planning and early decision-making is limited. In addition, social development technically involves variables that are not normally independent, and its completeness means their relationships must be considered to sum up the impacts. Thus, this work proposes a structural model that explains an integral interrelation of social criteria that determines socially sustainable housing projects for the vulnerable population in Chile. For this, a theoretical model was constructed and validated using a structural equation model (SEM). This system derives from the application of a survey applied to 188 professionals related to the development of public housing. From this, a model of social sustainability of public housing is validated with ten social criteria and eleven unidirectional interrelations, structured in two dimensions: the functional conditions of the home and the environmental conditions of the house. In the first dimension, the relation between the Improvement in family economic availability and Spaces for family development stands out. In the second, the strongest link is between Community health and safety and the Integration of the design in the context.

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