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Monjezi, Nasim; Sheikhdavoodi, Mohammad Javad; Zakidizaji, Hasan; Marzban, Afshin; Shomeili, Mahmood. |
This paper presents a GERT method based on fuzzy theory for solving fuzzy project scheduling of sugarcane production (preserve operations, harvesting and rationing) in Khuzestan province of Iran. In this method, activity duration time and loops, repetition number, and output activities from nodes of network belong to a fuzzy set. First, an analytical approach was proposed to simplify the structure of network. Then, GERT network computations were done based on evaluating nodes. Process outputs were scheduled network and project fuzzy completion time. These outputs were fuzzy numbers and can be analyzed by α- cut. Results prove that the method of using fuzzy numbers and fuzzy relation in project scheduling is a powerful tool to estimate time for agricultural... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scheduling; Sugarcane; GERT; Fuzzy. |
Ano: 2016 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3543 |
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HASHEMI,SEYED A.. |
Abstract Ecological capability evaluation is referred to as evaluation of potential capability of land and determination of its natural land use. In this paper, ecological capability of Lille Basin in Lahijan was evaluated for afforestation and forest expansion using Geographical Information Systems (GIS). For this purpose, information layers (slope, elevation, geographical directions, temperature, rainfall, humidity, soil type, and canopy cover) were prepared by digitizing the data obtained from concerned organizations. First, the layers were prepared based on coordinate systems and pixel value. Then, they were standardized using fuzzy membership functions. The evaluation criteria were prioritized with regard to expert opinion, and by using multi-criteria... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecological capability; Afforestation; AHP; Fuzzy; Forest. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703761 |
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Costa,Rodolfo Ferreira Ribeiro da; Costa,Genivalda Cordeiro. |
Resumo: O objetivo deste trabalho é identificar se existe uma relação entre os níveis de pobreza rural e urbano. Para isso, primeiramente foi auferido o patamar de pobreza para ambos os espaços, baseado na definição de pobreza multidimensional, admitindo, portanto, que as carências em saúde, renda, educação e moradia são componentes fundamentais para mensuração das privações. A abordagem utilizada para o indicador de pobreza multidimensional foi a lógica fuzzy, enquanto que a análise de dependência entre os indicadores foi desenvolvida através da função Cópula. Os dados remetem as áreas rurais e urbanas dos 5.565 municípios brasileiros em 2010. Por um lado, verificou-se que aquelas áreas rurais com maiores carências se fazem presentes na região Nordeste,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pobreza multidimensional; Rural; Urbano; Fuzzy; Cópula. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032016000300537 |
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