Now showing items 1-6 of 6

  • A hybrid approach to machine-tool selection through AHP and simulation 

    Authors:Ayaǧ, Zeki
    Publisher and Date:(Taylor & Francis, 2007)
    The selection process of a machine tool has been a critical issue for companies for years because the improper selection of a machine tool might cause many problems having a negative effect on productivity precision flexibility and a company's responsive manufacturing capabilities. Therefore in this paper to determine the best machine tool satisfying the needs and expectations of a manufacturing organization among a set of possible alternatives in the market a hybrid approach is proposed which ...

  • An integrated approach to evaluating assembly-line design alternatives with equipment selection 

    Authors:Özdemir, Rıfat Gürcan; Ayaǧ, Zeki
    Publisher and Date:(Taylor & Francis Ltd, 2011)
    The design and implementation of assembly-line systems have been critical issues for companies since the first assembly-line was started at the Ford Highland Plant in 1913. From that time onwards most companies have met with various problems at the design and implementation stages of assembly-line systems two of which are the allocation of different work elements to various workstations and the proper equipment selection for workstations. Therefore in this article to overcome both the above-mentioned ...

  • Cad software evaluation for product design to exchange data in a supply chain network 

    Authors:Ayaǧ, Zeki
    Publisher and Date:(ExcelingTech Publishers, 2015)
    The sharing information in a supply chain environment especially CAD models and drawings are so important companies. So the selection of the most satisfying computer-aided design (CAD) software which enables to exchange data through supply chain network has been major issues for companies in a supply chain. The selection process of CAD software among the raising number of alternatives in the market has been very vital and critical issue for companies that aim to make their design and engineering ...

  • Evaluation of Influenza Intervention Strategies in Turkey with Fuzzy AHP-VIKOR 

    Authors:Samanlıoğlu, Funda
    Publisher and Date:(Hindawi LTD, 2019)
    In this study, a fuzzy AHP-VIKOR method is presented to help decision makers (DMs), especially physicians, evaluate and rank intervention strategies for influenza. Selecting the best intervention strategy is a sophisticated multiple criteria decision-making (MCDM) problem with potentially competing criteria. Two fuzzy MCDM methods, fuzzy analytic hierarchy process (F-AHP) and fuzzy VIsekriterijumska optimizacija i KOmpromisno Resenje (F-VIKOR), are integrated to evaluate and rank influenza ...

  • Fuzzy AHP-GRA approach to evaluating energy sources: a case of Turkey 

    Purpose Since the demand for energy has dramatically increased in the countries which have fast-growing population and economy, they have faced with a critical problem of how to evaluate a set of potential energy sources (i.e. nuclear, natural gas, bio, geothermal, hydro, wind and solar) and choose the ultimate energy source for their needs. On the other hand, this critical problem turns into a multiple-criteria decision-making (MCDM) in the presence of a set of energy source alternatives and ...

  • Multi-objective Fuel Supply for Coal-fired Power Plants Under Emission Transportation and Operational Constraints 

    Authors:Yücekaya, Ahmet
    Publisher and Date:(Taylor & Francis Inc, 2013)
    Coal-fired power plants need to decrease their generation cost in deregulated power markets so as to be selected dispatched and compete with other cheaper resources. On the other hand coal prices have risen significantly and extra costs for SO2 and NOx emission outputs are imposed that force power companies to lower the costs for the fuel-coal supply process. In this article a multi-objective model for supplier transportation and coal order selection is developed for the coal supply of electric ...