جستجوی مقالات مرتبط با کلیدواژه « analytical hierarchy » در نشریات گروه « محیط زیست »

With the increasing number of environmental problems, it is very important to pay attention to environmental standards in the supply chain and has led to the creation of a green supply chain that causes the least damage to the environment. Evaluating, ranking and selecting a green supplier in the supply chain is important in order to reduce costs and achieve more profit and thus increase the efficiency and performance of the supply chain. The purpose of this article is to evaluate and select the best green suppliers of wind farm equipment using SELKA proposed approach and to prioritize suppliers according to economic and environmental criteria in the supply chain using this method.

In this paper, a hybrid approach called SELKA method is presented, which is a combination of data envelopment analysis methods and hierarchical analysis process, and the crossover matrix of efficiency is used instead of the matrix of weights.

The most important advantage of the proposed approach is to simultaneously consider the efficiency of suppliers and evaluate them according to the existing criteria, which is not considered in any of the decision-making methods, and thus leads to a more accurate and efficient evaluation of suppliers.

In order to validate SELKA's proposed method, the issue of evaluation and selection of green suppliers in wind power plants is discussed and the results are compared with similar methods. The results show the superiority of the proposed method of the article in the ranking of suppliers and selects more efficient suppliers.

Attention to social security is very important in the development of the province and cities as a whole. What is considered by experts and planners in social security is categorized in the form of city and province indicators. Sistan and Baluchestan province has not received enough attention in the discussion of security; therefore, the social security of this province is not at the desired level. The main issue in Sistan and Baluchestan province is achieving sustainable security in various dimensions. In this regard, to answer the research question entitled, "What is the zoning of Sistan and Baluchestan province and the situation of this province in the field of social security?" Been paid. The main goal of achieving sustainable security in Sistan and Baluchestan province is the micro-leveling of the cities of Sistan and Baluchestan province in the field of social security.

Based on the nature, descriptive-analytical method has been used for this research. The writing framework is based on the interrelationship of security indicators in the social dimension, data collection through library studies and field research (interview) and preparation of a questionnaire, which is used to analyze the data in this part of the analysis method and technique.

It indicates that the indicators of social security in the cities of Zahedan, Saravan, Iranshahr, Chabahar, Khash, respectively, have been more effective in creating danger and as a result of insecurity in these areas than other cities.

Based on the results obtained in the field of social security, the cities of Fanuj, Delgan, Qasr Ghand, Mehrestan (Zaboli) and Zahak have more security than other cities, respectively, and Zahedan, Saravan and Iranshahr have the lowest, respectively. They have security among the cities of the region.

The present study was conducted to evaluate and compare the sustainability of rain fed and irrigated wheat products in Golestan province.

The required data were collected from Golestan Agricultural Jihad Organization, Agricultural Jihad Agricultural Production Cost System and also by completing the questionnaires. Also, to weighing criteria and sub-criteria that determines the sustainability, some expert’s opinions in agricultural economics, agricultural extension and education, environment, agronomy and plant protection were used. Finally, using aggregation of economic, social and environmental indicators, the sustainability of the irrigated and rain fed wheat in Golestan province during 2015-2016 was evaluated and compared. Hierarchical analysis method was used for achieving the research purpose.

The results of this study showed that rain fed wheat in the environmental indices (fertilizer use, pesticides use, irrigation water, farm machinery and combined agriculture) with the score of 0.679is more compatible with the environment than irrigated wheat with a score of 0.331. Also, in economic indices (gross margin of agriculture, product gross margin, crop yield and insurance yield), irrigated wheat with the score of 0.538 was more sustainable than rain fed wheat, with a sustainability score of 0.462. Finally, in social indicators (level of education, age of farmers, labor sub jobs and family size), rainfed wheat with a score of 0.56 is more sustainable than irrigated wheat with a score of 0.44. In addition, the overall sustainability index indicates that rainfed wheat is more sustainable than irrigated wheat.

According to the results, it is recommended that wheat cultivation should be promoted with dehydration-resistant species.

In the past several decades, the ecotourism industry has a special place in the community nature and the environment, sustainable development and local revenues with significant growth. In this article, because of natural landscapes and pristine, and also because of the elevated area of clean air and a beautiful view of the city of Mashhad in the evening, the Khorshid forest park has a high potential for tourists attracting. Due to the large area and the local environment, this area has the visitors and tourists such as climbers during much of the year.
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The aim of this paper is to examine the current situation of tourism and ecotourism area from different directions (strengths, weaknesses, opportunities and threats) which has created a mechanism to improve the situation. Studies in this paper based on the SWOT matrix analysis and analytic hierarchy process AHP have been done.

According to the scores obtained from the final sum of internal factors, weights of strengths (with a final weight of 3.96) were found to be greater than the weaknesses, which indicates that the strengths of the park were greater than its weaknesses, as well as the existing opportunities, the threats are more that using the opportunities and strengths available to improve the current situation, park tried to provide the satisfaction of tourists more than ever.

According to calculations made and matrix analysis of SWOT, the Khorshid forest park showed the strengths and weaknesses, opportunities and threats in the development of ecotourism are more. As a result, the park has a high potential to develop an ecotourism industry that requires planning and management to attract tourists and the nature of the ecological range of the region.

Due to the lack of drinking water resources and their importance in the economy of any region, it is vital to locate most suitable place for water storage and water harvesting. Hence, this study was conducted to determine the appropriate places of conservation dams through applying heuristic methods of optimum like AHP and ANP methods in Torghabe and Shandiz located in Khorasan Razavi Province. Selection criteria in this research were five parameters including reservoir volume, reservoir damage, runoff, location, and geology. The research found that eight points in Torghabe and four points in Shandiz have good potential for constructing water reservoir structures. Thus, in Torghabe, a point having higher runoff and reservoir volume compared with the other points was considered as the best place for dam construction. In Shandiz, a point having the highest rating location and geology was proposed as appropriate location for construction. The results showed although ANP method is more advanced than AHP method, both methods have equal value in selecting the best option for constructing the water reservoir.

Reuse of wastewater plays a key role in reducing the consumption of water resources. Results show that the use of wastewater in agriculture had a positive effect on sodium absorption ratio and humus soil and improves soil conditions. The aim of this study was to improve the performance of the treatment of industrial effluents for reuse through applying the analytic hierarchy process. In determining the promotion of industries wastewater treatment system, the most important criterion was environment with relative weighting of 43.7%; the best sub-criterion was desired treatment degree with relative weight of 23.6%. regarding to management criteria, the best sub-criterion was sustainable operation with relative weight of 28.8%; for the economic criteria, the sub-criterion was the land requirement with relative weight of 58.2% and finally for technical criteria, the sub-criterion was treatment plant upgrading and development with the relative weight of 38.5%. Therefore, for improving system performance of the industrial wastewater treatment to prevent the accumulation of heavy metals, recycling and increased soil salinity to the level not resulting in soil salinity are recommended as environmental criteria (degree of treatment).

Iran is located in one of the driest land regions of the world, where water is a limiting factor for lasting life, therefore using seasonal floodwaters is very important in arid and semi arid regions. On the other hand special attention has been paid to artificial groundwater recharge in these regions. Floodwater spreading on the permeable terrain is one of the flooding control way and utilization methods. Determination of appropriate site for water spreading is one of the most important stages of this project. Parameters considered in the selection of groundwater artificial recharge locations are diverse and complex. These factors consist of earth sciences (geology, geomorphology and soils), hydrology (runoff, sediment yield, infiltration and groundwater conditions) and socio-economic aspects (irrigated agriculture, flood damage mitigation, environment, job creation and so on). Hence, decision making depends on criteria of diverse nature. The goal of this study is defining a Decision Support System for floodwater site selection in Mashkid area. Four main criteria were selected in this research are floodwater characters, infiltration, water application and flood damage. In order to determining the importance of factors, Analytical hierarchy Process and GIS was used. It will be expected that soil texture and floodwater volume of water application and floodwater main criteria are two important factors among other criteria (Hypothesis). After providing output maps which had been defined in several scenarios to determine the best locations for floodwater spreading and finally investigates sums suitability and averages suitability of each sub basin.