List of Articles Supply Chain

• Open Access Article
  • Abstract Page
  • Full-Text
  
  1 - Enhancing Efficiency and Organizational Knowledge in Assembly Lines Using Discrete-event Simulation Techniques
  Moslem Fadaei Hadi Heydari Ghare Bagh Sedigh Reisi
  10.7508/jstpi.2015.02.008
  In today’s competitive market, companies must work closely with their customers and suppliers if they want to survive and improve their own performance and to provide a better response to market forces. In a typical supply chain, information flow is more important than More

  In today’s competitive market, companies must work closely with their customers and suppliers if they want to survive and improve their own performance and to provide a better response to market forces. In a typical supply chain, information flow is more important than the other two involved flows including material flow and cash flow. It can be lead to enhance organizational knowledge. The main purpose of the research, is to identify, analyse and improve the performance of an assembly line using simulation techniques. Many factors, such as setup time, operating time, failure rate, repair rate, and production rate, can cause data to be non-stationary. Therefor, in order to analyse such complicated systems it is necessary to apply simulation techniques. The most important properties of an assembly line including bottlenecks, cycle time, buffers capacities, and the number of finished products in a given time period are investigated in the research. After data gathering, and building an appropriate simulation model, the simulation experiments were done with Enterprise Dynamic software. The simulation model is implemented and tested against real-world data and is demenostrated by a numerical example. Then, the bottlenecks and performance measures including throughput time and waiting time are identified and analysed in order to develop a new scenario in which opportunities for improvements are presented. The results show significant improvements in terms of reducing waiting time and increasing efficiencies. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  2 - The Potential of E-Business to Reduce the Bullwhip Effect in Auto Industry of Iran
  Lauya Olfat Mohsen Shafiei Nik Abadi
  Uncertainty about the supply chain and its various components causes demand variability in the length of chain in a way that as diverting from the final customer demand and actual orders, more fluctuation in amount of orders is observed and this can be followed by undes More

  Uncertainty about the supply chain and its various components causes demand variability in the length of chain in a way that as diverting from the final customer demand and actual orders, more fluctuation in amount of orders is observed and this can be followed by undesirable effects. This phenomenon is called Bullwhip effect. Several factors are involved in the occurrence of this problem for which some strategies to are listed. In this paper, first Bullwhip effect and what caused it in the supply chain are defined. Then, Key factors in reducing the effects in Auto industry using Survey are analyzed. Finally, with regard to the capabilities of electronic business, its role in confronting this phenomenon will be expressed. This Research is an Applied Research and a questionnaire containing 26 questions was used for the analysis. According to various aspects of creating Bullwhip Effect, partial sampling was used and a collection of experts in the field of inventory control, production planning and parts supply, sales, after sales service and supply chain management were surveyed. Calculated Samples are 171 experts. In this paper, The Mean Test is used to evaluate each hypothesis and finally Friedman's Test is used to assess being equal rank of Reducing Factors of Bullwhip effect. Innovative aspect of the research is observed in the study and identification of key factors in creating Bullwhip effect in supply chain and investigation of electronic business impact in reducing the negative effect. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  3 - Optimum Effect of Electronic Commerce on Supply Chain Management
  Hadi Heydari Saeed moheb Rabbani Hesam Zand Hesami
  Competitive advantage of an organization heavily dependent on the effectiveness of supply chain organization. Today, Supply Chain Management,is a growing body of tools and technologies for coordination and optimization of key processes, including: Reduction costs, incre More

  Competitive advantage of an organization heavily dependent on the effectiveness of supply chain organization. Today, Supply Chain Management,is a growing body of tools and technologies for coordination and optimization of key processes, including: Reduction costs, increasing quality, facilitate distribution, increasing customer satisfaction and ... , and Supply Chain Management should improve the coordination between members of the chain in order to achieve these goals and increase opportunities. Growth in information technology recent years, we witness, E-commerce are provided in the development pillars management. Especially that part of an integrated Internet and Electronic Commerce is required, high potential and capacity for efficient supply chain is to be. Paing attention to concepts of Electronic Commerce and Supply Chain Management, this article study factors influencing technology adoption in an organization and its followers, the effect of electronic commerce emerging as a new technology on the different section of chain. SCM development and change in the strategy units along with commercial development E-business with problems and obstacles inherent, It is necessary to response the pre challenges for this technology to the executive and the implementation makes essential. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  4 - Modeling and Implementing Supply Chain Management in Small and Medium Enterprises
  Hadi Heydari
  In the past decades, the cooperation of organizations was based on the short-term to gain maximum profit in a short time. Today, lots of Small and Medium Enterprises (SMEs) that has been established in Technology Parks wants to cooperate to have more profit in long term More

  In the past decades, the cooperation of organizations was based on the short-term to gain maximum profit in a short time. Today, lots of Small and Medium Enterprises (SMEs) that has been established in Technology Parks wants to cooperate to have more profit in long term relation. Nowadays, in order to produce a product or to present a service, different organizations should work together. Therefore, supply chain management is one of the best ways to have more profit, long-term relationship and to share the information between Small and Medium Enterprises. In this paper, we try to explain the history of supply chain management and the method of organizing and defining supply chain management and its main features. In addition, we will explain the efficient elements for organizing supply chain management and supply chain operating reference model. Moreover, based on an inspection from different text sources, different fields and the method of descriptive study, we will look at the result of supply chain management in SMEs that include: improvement of customer relationship, improvement of the time from order to the issue of invoices, improvement of physical material relation between suppliers and customers, improvement of the connections with the market, improvement of demand forecasting to meet the order and improvement the process of supply chain. Also, in this paper we will look at how to inplement supply chain management in SMEs. Keywords: Supply Chain Management, Planning, Supply, SCOR Model Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  5 - Recognition of Unsuccessful Development of Iran's Marine Industries through the Analysis of Current and Ideal Situation of the Industries' Value Chain
  Seyed Amir Aghaei Abrand Abadi Seyed Hossein Hosseini Mohamad Saeid Seif Navid Mohammadi
  10.7508/jstpi.2017.01.008
  20.1001.1.17355486.1395.13.49.4.4
  Iran's marine industry is of high importance due to the countries 5800 km of coastline, access to the sea in the north and the south, and access to free water although the industry's situation is not as successful as its rivals which started their development plan simul More

  Iran's marine industry is of high importance due to the countries 5800 km of coastline, access to the sea in the north and the south, and access to free water although the industry's situation is not as successful as its rivals which started their development plan simultaneously. The purpose of this paper is to examine the gap between current and ideal situation of marine industry to find bottlenecks of development. To do so, the marine industry value chains in other countries are studied and customized with Iran's industry through expert opinions as the first step. Next, private and governmental companies, which have been registered in Iranian Association of Naval Architecture & Marine Engineering, are reviewed and located in the value chain to find industry strengths and weaknesses. Finally, solutions to remove bottlenecks of Iran's marine industry development are proposed. Results are representative of the fact that the majour bottlenecks in supportive activities are the lack of integrated finance and insurance system, occupational skill training system, customs adminstartion, and R&D infrastructure. Moreover, the major bottlenecks in primery activities are lack of vendor list, and weakness of needs & feasibility assessment, supply chain management and technical capabilities. To improve the industry performance, the government should focus on integrated laboratory services, finance and insurance, and regulations to reduce investment risks and private sector should promote its productivity and competitiveness. This research could be used as a basis to formulate Iran's marine industry strategic plan. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  6 - Identifying Effective Critical Success Factors in Electronic Supply Chain Management (Case study: Small and Medium-sized Enterprises)
  morteza jabale Sajad Ranjkesh Mohammad Reza Ghiasy Hossein Ali  Hassan pour
  10.7508/jstpi.2016.03.004
  Electronic supply chain management (e-SCM) is one of the competitive industrial fields of the country. Availability of Internet network and information in supply chain management, gives the capability and competitiveness to small and medium-sized enterprises (SMEs) and More

  Electronic supply chain management (e-SCM) is one of the competitive industrial fields of the country. Availability of Internet network and information in supply chain management, gives the capability and competitiveness to small and medium-sized enterprises (SMEs) and also helps them for resilience in today`s competitions. Electronic supply chain management plays an important role in improving supply chain factors, information authenticity, reducing bullwhip effect and delivering products to the customers in right time and right place with high speed and accuracy. Attending to these factors can be helpful in making suitable decisions to promote enterprise by managers. The goals of this paper is to identifying effective critical success factors in electronic supply chain management and survey their effects on e-SCM implementation in small and medium-sized enterprises. To achieve this goal, thirteen questions has been developed and a multi-variable linear regression technique in SPSS used for analyzing questionnaire. A Multi regression analyses a dependent variable, which linearly relates to some independent controlled variables. Independent variables Xk are critical sub-factors for main factors and dependent variable Y indicate implementation of electronic supply chain management. Result analysis shows that four critical success factors are the most important factors playing role in e-SCM implementation in small and medium-sized enterprises, which are supporting of capacity of supplier, organizational scale, compatibility of e-SCM and CEO’s creative level. Management by focusing on four factors will make to improvement and forward upgrades in future. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  7 - Multi-period Multi-level Supply Chain Network Design in Agile Manufacturing with Tabu Search Algorithm
  elahe salari mohammadreza shahraki abdollah sharifi
  10.7508/jstpi.2019.02.003
  20.1001.1.17355486.1398.15.58.3.9
  Supply chain network design includes key decisions that have a major impact on the supply chain operational structure. Efficient supply chain design improves performance in organizations. This has led to the emergence of new concepts in the supply chain issue in the pas More

  Supply chain network design includes key decisions that have a major impact on the supply chain operational structure. Efficient supply chain design improves performance in organizations. This has led to the emergence of new concepts in the supply chain issue in the past decade. In this study, the supply chain network design problem in agile organizations has been taken into account with multi-level and multi-period. This problem is considered under conditions of having multiple customers with a high demand volume. The decisions include the selection of companies at each level, the amount of production, storage and transportation of each company. The problem has been modeled to integrate all decision variables with the goal of minimizing overall operating costs across the entire supply chain and Satisfaction of customers' complete demand and Satisfaction with them. Since multi-period multi-level supply chain design problem solving is one of the NP-Hard issues in uncertainty conditions, it is better to use innovative and meta-algorithms to reduce problem solving time. For this reason, the algorithm for banning search algorithms, which is one of the meta-algorithms, has been used to solve the model. The results of this research show that as the number of problem-solving repetitions increases, answers with less than 3% of the difference between the optimal answer are achieved. The search algorithm is forbidden to get the optimal response compared to the Lagrange algorithm. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  8 - Investigating and Ranking the Effective Factors on Green Supply Chain Management in Petrochemical Industry with DEMATEL Approach (Study of Lorestan Petrochemicals)
  Farshid Farokhizadeh
  10.52547/jstpi.20806.16.62.51
  20.1001.1.17355486.1399.16.62.4.5
  Purpose: Green supply chain management is based on both integrating the supply chain management and environment management, controls the environmental effects of products in their life cycle via sharing the information and coordination. The main objective of this study More

  Purpose: Green supply chain management is based on both integrating the supply chain management and environment management, controls the environmental effects of products in their life cycle via sharing the information and coordination. The main objective of this study is to evaluate and rank the "Green Supply Chain Management" in the petrochemical industry, as well as identification of sub-indicators of these major dimensions as research sub-goals. Methodology: In order to achieve the goals and answer the research questions, this research has been done in two steps. In the first step, with the study of scientific literature and the opinions of environmental experts, green supply chain management, and petrochemical industry, the indicators affecting green supply chain management were identified based on the main dimensions extracted and the basis for the preparation of the first questionnaire. After collecting and analyzing the data and determining the mean of society and the importance of dimensions and indicators, four demensions among 5 and 11 indicators of 22 indices were selected. In the second step, the DEMATEL method was used to analyze the causal and causal factors and rank the effective dimensions and indicators. Results: The results indicate that the dimensions of society, organizational participation, the indicators of the formation of the working group, senior management support, community expectation from the company and environmental education and training have respectively the most importance and the most weight this industry. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  9 - The Role of BlockChain Technology in Addressing Supply Chain Challenges: Requirements and Policies
  Aliakbar Farahzadi Mahdi  Naser
  10.52547/jstpi.20881.17.66.11
  20.1001.1.17355486.1400.17.66.3.9
  Supply chain refers to the process of production, assembly, transit and receipt of goods by the consumer, which plays a vital role in the development of the economy. This area faces challenges in the development path, such as lack of transparency in identifying the sour More

  Supply chain refers to the process of production, assembly, transit and receipt of goods by the consumer, which plays a vital role in the development of the economy. This area faces challenges in the development path, such as lack of transparency in identifying the source of supply or distribution of commercial goods, lack of exchange security or creating tension in the contracts of traders and consumers. Implementation of blockchain technology can be a suitable solution to solve these challenges. This platform with the feature of transparency, the existence of mechanisms to prevent the occurrence or online resolution of disputes and the elimination of financial intermediaries in electronic transactions makes it possible to achieve the set goals. But its implementation in any system faces challenges such as scalability, connectivity, standardization, and some legal challenges, the solution of which requires legislative and executive policy, including the use of efficient digital tools, their validation, and the establishment of formalities. Decentralized platforms and competent institutions to monitor the proper course of affairs. After explaining the introduction and concept of blockchain (first and second speeches), the present article details the supply chain challenges in the field of trade and expresses the practical features of blockchain in solving these challenges. After that, this study has tried to improve the process of exploiting this technology in the field of supply chain by examining the challenges facing this platform in its application in the supply chain and providing policy recommendations. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  10 - A Supervision System on Organic Products Supply Chain Based on Blockchain Technology
  FERESHTEHAZADI PARAND َAli TAVAKOLIGOLPAYGANI Negin Ghaderi
  10.61186/jstpi.32595.19.76.52
  20.1001.1.17355486.1402.19.76.2.2
  Nowadays, based on the spreading of information technology, food consumers especially organic food increasingly want to be informed about the history of food products that they are buying. They want to know about the origin of food, the condition of storage, transportin More

  Nowadays, based on the spreading of information technology, food consumers especially organic food increasingly want to be informed about the history of food products that they are buying. They want to know about the origin of food, the condition of storage, transporting, etc. besides the information are printed on the packages. In this paper, we are proposing a back and forth supervision system on organic products supply chain based on blockchain technology to ensure data integrity and allow data tracing. The proposed system as a decentralized and secure infrastructure database improves food security and safety, and reduces fraud by verifying the quality and the origin of the products throughout the entire their agricultural supply chain. A unique Quick Response code was used to identify each product within the supply chain. Automated protocols on validation each transaction and events related to a product by peers of the Blockchain system enable data transmitted on the network to be verified and stored immutably and minimizing the risk of data corruption. Manuscript profile