Vikor Method

Purpose: The development of eco-resorts is important for accommodation of domestic and foreign tourists, so their quality of indicators should be improved, regardless of its economic approach.  The purpose of this study is to spatially analyze the status of rural eco-resorts in Sari, so the present study seeks to answer these key questions: 1- What is the current status of rural eco-resorts indicators? 2- What is the level of the studied villages in terms of eco-resorts indicators? Methodology: The current study is descriptive-analytical and applied in terms of approach and aim, respectively.  Documentary and field study methods were used to obtain the required data.  The statistical population of this study consists of two groups, the first group, included experts in tourism who were selected with census method, and consequently, 15 people in total. The second group included tourists who have stayed in these eco-resorts. According to the Cochran's formula, with an error value of 0.07, 181 questionnaires were completed randomly. In order to analyze the data, descriptive statistics (mean, standard deviation and variance), inferential (one-sample t-test) and VIKOR method were used. Findings/results: Findings of the study showed that based on the significance level of the one-sample test, there is a significant relationship and difference between 7 indicators of the research. Late Letkan & Late Leteka, Tapurestan and Miansheh ranked first to third, and eco-resorts in Mah Joon (Q = 0.785), Senam and Saray Khan (Q = 0.828) had the lowest ranks. Therefore, it can be said that the resorts, which are at an acceptable level in terms of the studied indicators, have appropriate facilities and services in eco-resorts.

The purpose of this research is to select the best energy supply methods for blockchain technology and to optimize the use of each of the selected methods.For this purpose,a two-part hybrid approach based on best-worst multi-criteria decision making methods,VIKOR method and mathematical programming model has been used under uncertainty conditions.To implement this approach,first by reviewing the literature,the effective criteria in selecting the best method were extracted and then,the options or energy supply methods using blockchain technology were determined based on the experts’ opinion.Finally,the weight of the criteria and the final ranking of the selected options were determined by the best-worst and VIKOR methods, respectively.In the second part,in order to determine the optimal amount of using available facilities for blockchain technology to implement the selected method,a robust mathematical model is designed in which the NPV criterion is used as an economic evaluation measure of using the selected method in the first part. was taken As the obtained results show,the criteria of "implementability"and"productivity level"and"coordination with consumption pattern correction policies"have the highest level of importance with the weight of 0.339, 0.14and 0.14, respectively,in order to choose the best option.Also, the best score compared to other options belongs to the energy supply method"electricity generation from the combined use of national grid and solar panels".Solving the mathematical model shows that the highest level of economic efficiency belongs to the use of solar panels to provide a significant part of the need for power.