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۱Building the System Dynamic Models for Disaster Emergency Response System: an earthquake case
نویسنده(ها): ، ،
اطلاعات انتشار: کنفرانس بین المللی مدیریت، اقتصاد و مهندسی صنایع، سال
تعداد صفحات: ۱۲
Every year thousands of people dead or missing and millions of people homeless after natural and manmade disasters. Needs for better management of disaster relief provided by humanitarian organizations during disasters should continue to increase managers in humanitarian organizations must understand the complexity that characterizes humanitarian relief efforts to learn how to design and manage complex relief operations. System dynamics is a method for studying the complexity of world around us and look at things as a whole. In this paper we apply SD tools in simulation software to represent a model by interaction between the relative organization, people receiving aids and donors in disaster situation<\div>

۲System Dynamic Simulation Approach for Analysing of Bullwip Effect in Supply Chain
اطلاعات انتشار: کنفرانس بین المللی مدیریت، اقتصاد و مهندسی صنایع، سال
تعداد صفحات: ۹
The competition between enterprises has already entered the period of competition between supply chains through developing of information technology and economy. Risk management of a supply chain (SC) has a great influence on the stability of dynamic cooperation among SC partners. One of the most important risk and disturbing sources of SC is order fluctuations along when move up in supply chain. Bullwhip Effect is a phenomenon that the demand amplification and fluctuation from supply chain origin to supply chain terminal. In this research we use the system dynamics approach for investigating the bullwhip effect in supply chain. We study the impact of information sharing level, forecasting accuracy, and safety stock level using the order–up to–S policy on the bullwhip effect with the systems dynamic simulation approach using VENSIM software in the three–echelon supply chain consisting of a distributer, a retailer and a manufacturer. This paper illustrates that, with the high forecasting accuracy, the high level of the customer data sharing does not necessarily reduce the bullwhip effect. We noted that variations in demand have been cancelled out through repeated forecastings when forecasting data is not shared.<\div>

۳Evaluating the Social Sustainability of the Supply Chain with A Fuzzy Multi Criteria Approach
اطلاعات انتشار: دومین همایش ملی پژوهش های مهندسی صنایع، سال
تعداد صفحات: ۱۳
An organization’s performance is affected by its suppliers’ performance, and obtaining sustainable suppliers is a strategic decision in order to be successful in today’s competitivemarket. The supplier election problem involves various qualitative and quantitative criteria. In the supplier selection procedure, there are very constraints, so it is urgent to specify the best way to opt one of them. In this paper, a multi criteria framework based on fuzzy multi attributesdecision making (FMADM) is proposed in order to evaluate and compare the company performances in terms of social sustainability of the supply chain. However, mark that decreasing all aspects of sustainable supply chain to a single unit using a multi–criteriaframework may not be sufficient to satisfy all the needs of decision makers. At first, the fuzzyanalytic hierarchy process and fuzzy technique for order preference by similarity to idealsolution is applied in order to analyze the importance of multiple criteria by incorporating experts’ opinion and to determine the best social sustainable supplier. Then, TOPSIS is applied to evaluate the suppliers. At last, the efficiency and application of the proposed approach have been illustrated with a numeric example.<\div>
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