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Approach to solve multi-criteria group decision-making problems by exponential operational law in generalised spherical fuzzy environment

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CAAI Transactions on Intelligence Technology 2020年第2期5卷 106-114页

作者： tipu sultan haque Avishek Chakraborty Sankar Prasad Mondal Shariful Alam Department of Mathematics Indian Institute of Engineering Science and TechnologyShibpurIndia Department of Basic Science Narula Institute of TechnologyAgarparaKolkata-700109India Department of Applied Science Maulana Abul Kalam Azad University of TechnologyWest BengalIndia

The construction of generalised spherical fuzzy number(GSFN)is a reliable philosophy to design and understanding of vagueness and *** this study,at first,the authors have defined the generalised spherical fuzzy set and discussed its several ***,a new score and accuracy functions have been introduced in the generalised spherical fuzzy environment which leads to a new method of conversion of fuzzy number into a crisp *** exponential operational law has been defined for GSFNs where the bases are positive real numbers&components are GSFNs and its various algebraic properties have been studied *** this exponential operational law,a generalised spherical weighted exponential averaging operator has been proposed,which is used to develop a multi-criteria group decision-making(MCGDM)method in the generalised spherical fuzzy *** newly developed MCGDM has been demonstrated through a real-life problem and its effectiveness and rationality have been shown through sensitivity analysis.

关键词： properties. spherical exponential

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Amelioration of Saline Soil by the Application of Gypsum, Calcium Chloride, Rice Husk and Cow Dung

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Journal of Agricultural Chemistry and Environment 2019年第2期8卷 78-91页

作者： Mohammad Zulfikar Khan Mohammad Golam Azom Mohammad tipu sultan Sudipta Mandal Mohammad Ariful Islam Rikta Khatun Shaikh Motasim Billah Abu Hena Mohammad Zulfikar Ali Soil Water and Environment Discipline Khulna University Khulna Bangladesh Department of Soil Water and Environment University of Dhaka Dhaka Bangladesh

A pot experiment was conducted to investigate the effect of cow dung, rice husks, calcium chloride and gypsum on soil reclamation and compare the effect of organic and inorganic amendments on soil reclamation during the period of 5th March to 20th April, 2017. The experiment was laid to fit a completely randomized design (CRD) with seven treatments [Reference soil (T0), Cow dung (T1), Rice husk (T2), Gypsum (T3), Calcium chloride (T4), Cow dung + Rice husk (T5) and Gypsum + Calcium chloride (T6)] each having three replications for this experiment. After incubation (45 days), the laboratory investigation was carried out in the Soil, Water and Environment Discipline, Khulna University, Khulna, Bangladesh. Results indicate that the individual or combined effect of gypsum (T3) was more effective in changing EC and SAR. Gypsum application in combination with calcium chloride (T6) improved the soil chemical properties by reducing the EC. Among the treatment, calcium chloride (T4) had a remarkable effect in reducing sodium adsorption ratio and gypsum had a remarkable effect in reducing pH. Cow dung (T1), rice husk (T2), combination of cow dung and rice husk (T5) were less effective to reduce EC, pH and SAR. It’s measured for soils of different soil amendments varied significantly

关键词： Amelioration Saline Soil Cow dung Rice Husk Gypsum Calcium Chloride C/N Ratio

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