Air pollution is undoubtedly one of the most important environmental issues in the world and especially in major cities. The need to investigate this issue is apparent given the importance of the problem of air pollution and its impact on the health of residents. The problem of air pollution in metropolises is the result of the combination of several factors, one of the most important onebeing the industrial sector and, among them, polluting industries including ceramic tile industry. Using a dynamic system modeling approach and selecting Yazd, Iran as a case study and alsoconsidering the inherent complexity of each of the factorsthat makes it impossible to be analyzed using conventional tools of mathematical modeling, this study tries to presenta pollution subsystem of ceramic tile industry in order to analyze the problem of air pollution of Yazd. This simulation is carried out over a six-year period using Vensim software, and represents a long-term vision. This model and the simulation accompanying it can be used as an applied decision support system for ceramic tile industry decision-makers and environmentalists in order to make the best possible decisions based on the circumstances of their organization or factory.
La prefabricación en un edificio de gran altura puede reducir los desechos de la construcción. En esta investigación, se estudiaron las empresas constructoras de gran altura en Irán y se identificaron las ventajas y desventajas de la prefabricación; luego se revisaron las estrategias de desarrollo de esta industria. Para ello se utilizaron cuestionarios para seleccionar los subsistemas adecuados para prefabricación. A partir de la opinión de los expertos se aplicó el método Delphi Snowball para identificar y adoptar los cuestionarios adecuados. Luego, se examinó el efecto de la prefabricación en componentes no estructurales en la reducción de desechos. En consecuencia, los resultados de la investigación de la producción de desechos en un edificio de gran altura revelaron que la prefabricación puede reducir el costo de los desechos al 97.54% y el costo total del proyecto se reduciría en un 5.06%.
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