فصلنامه مدیریت زنجیره تامین
پیاپی 39 (بهار 1392)

Innovation in technology and customer requirements are constantly changing and it causes competitive environment to be became more complex. These changes lead organizations and countries to become more competitive. In this situation must compete or accept denying. In other hand, countries create growth path by developing of competitive capacitance. In this paper aspect of supply chain capability and competitiveness are identified and extracted and the impact of these components on the economic development of Iran has been investigated. Supply chain capabilities were extracted in 4 dimensions and 8 dimensions for competitiveness. According to limitation of experts to extract dimensions effect on the other is used DEMATEL technique. Findings and results research based on dimensions of supply chain capabilities have an effect on competitiveness and economic development of developing countries. “Network Integration” is evaluated as the most influencing factor and being influenced factor is “price”.

The concept of reverse logistics has received growing attention in the last decades, due to a number of factors. Competition and marketing motives, direct economic motives and concerns with the environment are some of the important of them. With the legislative measures tightening up, there are not many options left with the companies, but to go for reverse logistics practices. The implementation of these may be a risky endeavor for the top management as it involves financial and operational aspects, which determine the performance of the company in the long run.Today the reverse logistics has become one of the most challenging subjects in automobile Industry’s supply chain. Hence the recognition of the barriers which hinder the reverse logistics application is so important. Since the researchers usually discuss on the every barrier separately.There is a need to develop a model which shows all the barriers and their ranking in a sol format. In this paper we tried to find the major barriers in reverse logistics hence we review the published literature in reverse logistics area and we interview with some experts in logistics sector at the specific formats. And at the end we adjust the first phase with the second one. Then we used the interpretive structural modeling to ranking the barriers and identifying the relation between them.

There is lots of loss in current Iranian electric supply chain that causes wasting of national investment and bad effect on environment. Green energy development as a new source of energy and reconstruction of electric network can provide a suitable field for reduction of loss and improvement of electric supply chain. This article focuses on a smart grid between houses with solar power system and compare this system with current transmission system from operation research point of view, in the form of mathematical model.

In recent decades, cross-docking problem has led to a new approach to design warehouses and distribution centers in transportation problems. The main idea of the cross-docking problem is transportation of incoming shipments directly by outbound trucks without saving them. Cross dock locating is the first decision for using them. Therefore, this paper addresses an evaluation of cross dock designing problem in two levels, first level is single-source and second is multi-source. To increase the problem efficiency, multiple capacity levels are considered for each cross dock and each warehouse. Finally, eight different instances are solved by using GAMS software to evaluate the model's performance and validate it.

This article studies the history of Komatsu machinery engine oil analyze results in Aghchy reservoir dam and impurities in the oil samples that was determined by oil analyze, also surveys causes of contamination genesis and hide.In this regard, primarily, the causes for genesis and hide of contaminations, including soil, water and fuel were identified and evaluated technically and by CM then TPM, Then the components for increasing the effectiveness of Komatsu machinery motor maintenance according to TPM and role and effects of OCM in determining each of mentioned components was specified. Eventually the solutions for increasing effectiveness of OCM with approach of TPM are presented based on a model.

In many financial firms, providing high-quality products at the lowest cost is one of their main objectives. Obtaining these two objectives simultaneously with each other in many cases are not possible. In this paper, an integrated bi-objective mathematical model to determine flow of products throughout dynamic supply chain in levels of production, distribution and market is presented. The goal of proposed model is to minimize purchasing, transformation and holding costs of products and to maximize purchasing high quality products. Finally, to evaluate the proposed model using ε-constraint method as an optimization approach for multi-objective problems, an example for an army organization is solved.