جستجوی مقالات مرتبط با کلیدواژه "dematel" در نشریات گروه "محیط زیست"

Tehran peri-urban areas are facing disorders and many problems in terms of economic, social, residential and environmental aspects, and nowadays require improve spatial management. The requirement of spatial organization is using a decision support system and these systems will not be successful without having a spatial data infrastructure (SDI). This research, while fully reviewing the past pathological studies, using the fishbone method, searched for the causes of challenges and obstacles in establishing SDI. These causes were extracted in three levels of factors, criteria and sub-criteria. 8 factors, 11 criteria and 19 sub-criteria were included in the fishbone chart. In the next step, by summarizing the results of the previous step and using the Decision-Making Trial and Evaluation Laboratory (DEMATEL), while using the expert’s opinions, an investigation was carried out about the cause and effect relationships between the challenges facing the establishment of SDI in Tehran peri-urban areas. The results of the research indicate that the three factors are known as the cause; 1. low quality of spatial data, 2. the absence of metadata and 3. the lack and inefficiency of map production standards, and the two factors are the effect; 1.wrong attitude towards technology and research and 2. the cost of spatial data production. Three other factors were ignorable to categorize in terms of influence and effectiveness.

Livestock industry as one of the sub-sectors of agriculture in the world has a significant growth and its entrepreneurship in job creation, value creation, human nutrition, human and community health and in general its irreplaceable role in the economy has always attracted the attention of governments. In our country, despite the protections defined in the laws, this industry is still in a tight spot due to the lack of infrastructure, lack of coherent and sustainable management, superficiality of basic and macro issues and lack of prioritization in planning, and has faced activists with some ambiguity about the future. While with the current investments, capacities and potentials and existing facilities, it is possible to lead the curve to more growth and excellence by reforming the infrastructure, facilities and credit support from the government and culture building. Therefore, proper planning in this area requires strategic and forward-looking decisions. For this purpose, Future Study approach was used to formulate future scenarios for the livestock industry in Khorasan Razavi province and the critical uncertainty method, which is one of the common techniques for extracting key factors, was used. In the next step, DEMATEL method was used to determine the interactions of key indicators. The scenarios of the present study were developed based on two macro-policies of government and climate which are scenario 1, scenario 2, scenario 3 and scenario 4. Finally, Using the Moora method, the most probable scenario, which is scenario 4, was determined, in which both the amount of precipitation is reduced and the government's macro-policies do not move towards optimism and productivity.

Health, safety and environment system which established in organizations to protect and safeguard skilled manpower, along with reducing the adverse effects of industry on the environment. Although this system has been studied in depth in various studies, but few tools to measure it have not been well developed.

The current study aims to present a quantitative evaluation of the criteria for health, safety, and the environment in oil refineries based on HSE-MS OGP pattern. The items and sub-items in the HSE-MS are considered as the criteria, and sub-criteria and taking a combined approach based on multi-variate decision making techniques such as network analysis, DEMATEL the study aims to weight and determine the priorities of HSE-MS.

In this study, the criterion of "leadership" with a normalized weight of 0.450, the criterion of "risk assessment and management" with a normalized weight of 0.200, the criterion of "planning" with a normalized weight of 0.101, the criterion of "policy" with a weight of Normalized 0.083, "Organization" criterion with normalized weight of 0.078, "Execution and monitoring" criterion with normalized weight of 0.056, "Audit and review" criterion with normalized weight of 0.032 in order of first priority to It was the seventh. 

Discussion and Conclusion:

Changes in management commitment to health, safety and the environment and reform of the risk management system can improve this performance, and according to their ranking, more appropriate comparisons can be made to allocate sufficient facilities and budget to them.

Environmental risk assessment (EAR) can be recognized as one of the important tools for the realization of sustainable development. The purpose of this research is to identify the types of environmental risks in Mazandaran province and provide a hybrid model in order to assess and prioritize them, which lead to better management of the environment hazards. In this research, 9 experienced manager from Mazandaran province's environmental protection agency and academic professors in this field were used as experts, and the Risk Breakdown structure (RBS) of environmental risk was defined based on their views at three levels. Then, using the DEMATEL technique, the importance of risk categories and their weight was determined. In the next step, criteria for risk assessment were identified and defined. Each risk was evaluated in each criterion based on the Taguchi Loss Function method, and their loss scores were calculated. According to the results,"cultural", "physico-chemical" and "economic" risk categories are more important than the others and affect them. Also,"Urban and Industrial Wastewater", "pest and disease of plants and animals", "excessive harvesting of forest and mineral resources", "discharge and disposal of wastes" and ... were considered as the most important environmental risks respectively.

Development of industry, agriculture and services, requires training of efficient workforce in technical and vocational fields. Knowing that human activity in these three sectors decreases the environmental quality, dealing with environmental degradation can be achieved by implementing long-term sustainable development education policies. The present study is an applied research and aims to choose the best method for sustainable development education. For this purpose, first, the sustainable development competency criteria for technical and vocational graduates were identified by library studies and three different questionnaires were designed based on them. Then, DEMATEL Technique was used to identify the mutual interactions among the criteria. The obtained results were used for designing a network structure on the fuzzy ANP technique to assign weight to each criterion. Finally, the obtained weights were used to rank and select the best method for sustainable development education based on the TOPSIS technique. Since these techniques cannot resolve the ambiguity and uncertainty of verbal evaluations, the fuzzy triangular numbers were used in all the above-mentioned techniques. The results obtained in this study indicate that self-learning skills and proficiency in the environmental knowledge related to a particular technical and vocational field is the most important sub-criteria of sustainable development competence. Furthermore, group discussions were found to be the most appropriate teaching method for sustainable development education. Due to the importance of sustainable development competence criteria in choosing the right method for sustainable development education, it is necessary to consider all aspects of knowledge, skills, attitude, development and growth, in order to strengthen the environmental attitude and behavior.

Knowledge of conservation biology has received much attention from both authorities and experts of environment in the recent decades maintaining biodiversity values. One of the strategies for environmental management, is to create infrastructure facilities required for physical protection of conserved areas. Conservation of arid ecosystems, such as Naybandan wildlife refuge that has the ability to achieve least natural conditions and introduced as one of the most significant habitat of Asiatic Cheetah (Acinonyx jubatus venaticus), should be placed on conservation priorities. Objectives of the current study were zoning and site selection for environmental monitoring stations using multiple criteria decision making systems, in the Naybandan wildlife refuge. Therefore, effective criteria and indicators were identified by the Delphi method and the internal structure of the criteria and indicators were characterized using DEMATEL technique. Next, indicators were weighted using Analytic network process technique and combined using Gray Cluster method and classified in five classes, that class one represents the best areas for the installation of the environmental monitoring stations. Finally, we used the three-dimensional analysis and satellite images to determine the exact location of the station and the exact location of environmental monitoring stations were identified. The results showed that between technical and socio-economic criteria, distance from the point of gravity and distance from communication lines are the main criteria affecting the positioning of the environmental monitoring stations, respectively. These findings indicate the efficacy of the combination of multiple criteria decision making systems with Gray functions in location decisions.

Capability evaluation can be considered as a basic strategy for land use becausethe development synchronous with the naturecan be achieved by using identifying and assessing of the ecological characteristics of the area. Agricultural land suitability classification based on indigenous knowledge is vital to land-use planning (ecological capacity evaluation). Execution of development and creation of appropriate points for agriculture land usewithoutconsidering ecological capability will result in the appearance of several environmental, economic andsocial problems. In the agricultural sector, goals for sustainability generallyinclude the maintenance or enhancement of the naturalenvironment, provision of human food needs, economicviability, and social welfare. Sincethat agriculture has enormous environmental impacts on peri-urban regions, it is necessary to evaluate agriculture land use. Therefore, agriculturalland suitability analysis is a prerequisite to achieve optimum utilisation of the available land resources for sustainable agricultural production. The objective of the present study is to evaluate the arable land suitability using the decision making models such as analytic network process (ANP) and Fuzzy Analytical Hierarchy Analysis (FAHP CHANG). In this paper, we determine agricultural land suitability classifications using case spatial data sets from Behbahannorth Plain. Matherial and

This research was done in framework of the ecological model and multicriteria decision making methods such as DEMATEL, ANP, FAHPCHANG by using Arc GIS 10, Excel 2013, Super Decision 2.0.8, MATLAB 7.11.0, Surfer11 soft wares and with the aim of choosing the suitable locations for agriculture land use in Behbahan north plain.The present study is based on theecologicalparameters(physical andbiological) to assess theecological capability of agriculture landuse including physiographic(percent slope) (So), precipitation(Cp),temperature(Ct),distance fromwater sources(Wc),soil depth(Pd),soil erosion(Es),soil structure(Ps), soil texture(Pte),soil drainage(Pdr)andvegetation types(Vgo).DEMATEL isa comprehensive method for building and analyzing structural model involving causal relationships betweencomplex factors.ANP is based on the creation of a control network which describes dependency among decision elements.InFuzzy Analytical Hierarchy Analysis method, Forpairedcomparisonsof criteria and forgaining weightandpreference use Triangular fuzzy numbers and Geometricaveragingmethod Respectively.In order to integrate layers Simple Additive Weighting or Weighted linear combination method (SAW) Was used. The study area is located in Behbahan north plain. This area is limited in 30°, 36' to 30°, 37' north of latitude and 50°, 19' to 50°, 29' east longitude. Discussion of

Analyzing the criteria objectively involved using specific GIS techniques to break the analysis down into quantifiable measurements. From the available 10 m interval contour map of the study area in ArcGIS, a contour Digital Elevation Model (DEM) was generated from which a grid DEM was derived and the slope data was obtained. The reclassify tool was then used to reclassify all the variable data sets by Iranian ecological model. It is favourable to usethe DEMATEL to handle the problem of inner dependences, since it can provide more valuableinformation for decision-making. For example, from the causal table (r + c and r – c matrix) it can be directly and visibly seen that the most important criterion is slope (Table 1). This study also shows that using DEMATEL tonormalize the unweighted super matrix in the ANP procedure is more reasonable thanusing the assumption of equal weight in each cluster (Table 2).Using FAHP and paired comparisons were done by experts, the weight of each of the evaluation criteria and sub-criteria affecting agriculture can be calculated using Matlab softwareFuzzy evaluation criteria of ecological agriculture is shown in (Table 3). In final, total digital layers were integrated using the simple additive weighting method and evaluated each alternative. Based onthezoningmap by ANP method, from thetotalarea, 4%havethe appropriate power and 3% have the inappropriate power for usage Agriculture and by FAHP method, 4%havethe appropriate power and 11% have the inappropriate power for usage Agriculture. Fig. 1 shows the final layer of evaluation ANP method. Fig. 2 shows the final layer of evaluation FAHP method.

InAgriculture ecologicalmodel, was consideredsevenclasses that from class one to class seven, quality of landbecome inappropriate for this user that there aresevenClassin thestudy area. In generalcan be said thatthe study areain terms ofecological potentialis unsuitable foragricultural landusebecause of near to mountain, thehills and thedissolutionformations of gypsum andlimestone.Thisresult isclearlyseenin theFuzzy AHPmethod. The results of such studies can help those in charge of the area designated for agriculture in places better use.In any case, we can conclude that Models Multi Criteria Decision on assessment of land suitability for various applications are very useful.