The Yangtze River is one of the largest and longest rivers in Asia.The river originates in the Tibet-Qinghai Plateau(headwater reach),passes through the mountainous provinces of Sichuan,Yunnan and Chongqing(upper reac...The Yangtze River is one of the largest and longest rivers in Asia.The river originates in the Tibet-Qinghai Plateau(headwater reach),passes through the mountainous provinces of Sichuan,Yunnan and Chongqing(upper reach),flows into the Central Plain(middle reach)and Lower Plain(lower reach),and finally empties into the East China Sea in Shanghai(estuary).The Yangtze River Economic Belt(YREB;Fig.1)has a surface area of 2.1展开更多
Purpose-In this paper,the four popular multiple-criteria decision-making(MCDM)methods in fuzzy environment are utilized to reflect the vagueness and uncertainty on the judgments of decision-makers(DMs),because the cri...Purpose-In this paper,the four popular multiple-criteria decision-making(MCDM)methods in fuzzy environment are utilized to reflect the vagueness and uncertainty on the judgments of decision-makers(DMs),because the crisp pairwise comparison in these conventional MCDM methods seems to be insufficient and imprecise to capture the right judgments of DMs.Of these methods,as Fuzzy analytic hierarchy process(F-AHP)is used to calculate criteria weights,the other methods;Fuzzy Technique for Order of Preference by Similarity to Ideal Solution(F-TOPSIS),Fuzzy Grey relational analysis(F-GRA)and Fuzzy Preference Ranking Organization METhod for Enrichment of Evaluations(F-PROMETHEE II)are used to rank alternatives in the three different ways for a comparative study.Design/methodology/approach-The demand for green products has dramatically increased because the importance and public awareness of the preservation of natural environment was taken into consideration much more in the last two decades.As a result of this,especially manufacturing companies have been forced to design more green products,resulting in a problem of how they incorporate environmental issues into their design and evaluate concept options.The need for the practical decision-making tools to address this problem is rapidly evolving since the problem turns into an MCDM problem in the presence of a set of green concept alternatives and criteria.Findings-The incorporation of fuzzy set theory into these methods is discussed on a real-life case study,and a comparative analysis is done by using its numerical results in which the three fuzzy-based methods reveal the same outcomes(or rankings),while F-GRA requires less computational steps.Moreover,more detailed analyses on the numerical results of the case study are completed on the normalization methods,distance metrics,aggregation functions,defuzzification methods and other issues.Research limitations/implications-The designing and manufacturing environmental-friendly products in a product design process has been a vital issue for many companies which take care of reflecting environmental issues into their product design and meeting standards of recent green guidelines.These companies have utilized these guidelines by following special procedures at the design phase.Along the design process consisting of various steps,the environmental issues have been considered an important factor in the end-of-life of products since it can reduce the impact on the nature.In the stage of developing a new product with the aim of environmental-friendly design,the green thinking should be incorporated as early as possible in the process.Practical implications-The case study was inspired from the previous work of the author,which was realized in a hot runner systems manufacturer,used in injection molding systems in a Canada.In a new product development process,the back-and front-ends of development efforts mainly determine the following criteria:cost,risk,quality and green used in this paper.The case study showed that the three fuzzy MCDM methods come to the same ranking outcomes.F-GRA has a better time complexity compared to the other two methods and uses a smaller number of computational steps.Moreover,a comparative analysis of the three F-MCDM methods;F-PROMETHEE II,F-TOPSIS and F-GRA used in ranking for green concept alternatives using the numerical results of the case study.For the case study;as seen in table 20,the three F-MCDM methods produced the numerical results on the rankings of the green concept alternatives as follows;{Concept AConcept C-Concept B-Concept D}.Social implications-Inclusion of environmental-related criteria into concept selection problem has been gaining increasing importance in the last decade.Therefore,to facilitate necessary calculations in applying each method especially with its fuzzy extension,it can be developed a knowledge-based(KB)or an expert system(ES)to help the DMs make the required calculations of each method,and interpret its results with detailed analysis.Originality/value-The objective of the research was to propose a F-AHP based F-MCDM approach to green concept selection problem through F-PROMETHEE II,F-TOPSIS and F-GRA methods.As the F-AHP is used to weight evaluation criteria,the other methods are respectively used for ranking the concept alternatives and determine the best concept alternative.展开更多
基金partially funded by Chinese Academy of Sciences (Y62302,Y45Z04,Y55Z06,and Y62Z17)World Wide Fund for Nature (Y56002 and Y63Z08)
文摘The Yangtze River is one of the largest and longest rivers in Asia.The river originates in the Tibet-Qinghai Plateau(headwater reach),passes through the mountainous provinces of Sichuan,Yunnan and Chongqing(upper reach),flows into the Central Plain(middle reach)and Lower Plain(lower reach),and finally empties into the East China Sea in Shanghai(estuary).The Yangtze River Economic Belt(YREB;Fig.1)has a surface area of 2.1
文摘Purpose-In this paper,the four popular multiple-criteria decision-making(MCDM)methods in fuzzy environment are utilized to reflect the vagueness and uncertainty on the judgments of decision-makers(DMs),because the crisp pairwise comparison in these conventional MCDM methods seems to be insufficient and imprecise to capture the right judgments of DMs.Of these methods,as Fuzzy analytic hierarchy process(F-AHP)is used to calculate criteria weights,the other methods;Fuzzy Technique for Order of Preference by Similarity to Ideal Solution(F-TOPSIS),Fuzzy Grey relational analysis(F-GRA)and Fuzzy Preference Ranking Organization METhod for Enrichment of Evaluations(F-PROMETHEE II)are used to rank alternatives in the three different ways for a comparative study.Design/methodology/approach-The demand for green products has dramatically increased because the importance and public awareness of the preservation of natural environment was taken into consideration much more in the last two decades.As a result of this,especially manufacturing companies have been forced to design more green products,resulting in a problem of how they incorporate environmental issues into their design and evaluate concept options.The need for the practical decision-making tools to address this problem is rapidly evolving since the problem turns into an MCDM problem in the presence of a set of green concept alternatives and criteria.Findings-The incorporation of fuzzy set theory into these methods is discussed on a real-life case study,and a comparative analysis is done by using its numerical results in which the three fuzzy-based methods reveal the same outcomes(or rankings),while F-GRA requires less computational steps.Moreover,more detailed analyses on the numerical results of the case study are completed on the normalization methods,distance metrics,aggregation functions,defuzzification methods and other issues.Research limitations/implications-The designing and manufacturing environmental-friendly products in a product design process has been a vital issue for many companies which take care of reflecting environmental issues into their product design and meeting standards of recent green guidelines.These companies have utilized these guidelines by following special procedures at the design phase.Along the design process consisting of various steps,the environmental issues have been considered an important factor in the end-of-life of products since it can reduce the impact on the nature.In the stage of developing a new product with the aim of environmental-friendly design,the green thinking should be incorporated as early as possible in the process.Practical implications-The case study was inspired from the previous work of the author,which was realized in a hot runner systems manufacturer,used in injection molding systems in a Canada.In a new product development process,the back-and front-ends of development efforts mainly determine the following criteria:cost,risk,quality and green used in this paper.The case study showed that the three fuzzy MCDM methods come to the same ranking outcomes.F-GRA has a better time complexity compared to the other two methods and uses a smaller number of computational steps.Moreover,a comparative analysis of the three F-MCDM methods;F-PROMETHEE II,F-TOPSIS and F-GRA used in ranking for green concept alternatives using the numerical results of the case study.For the case study;as seen in table 20,the three F-MCDM methods produced the numerical results on the rankings of the green concept alternatives as follows;{Concept AConcept C-Concept B-Concept D}.Social implications-Inclusion of environmental-related criteria into concept selection problem has been gaining increasing importance in the last decade.Therefore,to facilitate necessary calculations in applying each method especially with its fuzzy extension,it can be developed a knowledge-based(KB)or an expert system(ES)to help the DMs make the required calculations of each method,and interpret its results with detailed analysis.Originality/value-The objective of the research was to propose a F-AHP based F-MCDM approach to green concept selection problem through F-PROMETHEE II,F-TOPSIS and F-GRA methods.As the F-AHP is used to weight evaluation criteria,the other methods are respectively used for ranking the concept alternatives and determine the best concept alternative.
