• 대한안전경영과학회지
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• 제15권4호
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• pp.383-392
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• 2013

In order to promote social responsibility, a company reads to engage in various activities to increase their competitiveness to ensure stable and continuous development. One of the activities is to input human/material resources in order to draw and develop the core abilities of member for the productivity improvement of the company. This study is concerned with capability improvement of members in relation to core company performance, the focus of the study is to identify how education training in a company may contribute to team performance by leaning transfer through empirical study. As a result of this study, it was found that the personality of members, as well as the training programs, within the company can be a significant factor for improving productivity and performance of the company. In addition, team members noted that learning transfer take place when effectively lead through the leadership of a boss and identified that this leadership ultimately has a significant effect on team performance.

• 산업경영시스템학회지
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• 제41권2호
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• pp.159-166
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• 2018

The proliferation of information technologies made it possible to produce information products of different versions at much lower cost comparing to traditional physical products. Thus it is common for information product manufacturers to consider vertically differentiated product line for more profit through improved market coverage. Another salient characteristic of most information product is network externality. Existing researches dealing with vertical differentiation and network externality usually assumed oligopolistic market where vertically differentiated products are provided by competing companies, respectively. Moreover, they analyzed the essentially dynamic characteristic of network externality statically. In this study, different from the previous researches, the vertical differentiation strategy of a monopolistic company under network externality is dynamically analyzed. We used a two-period model to accommodate the dynamic feature of network externality. Based on the two-period model, the profit maximizing solutions are analyzed. The results showed that a monopolistic company has no incentive to differentiate products vertically when the network externality is absent. On the contrary, when the network externality exists, the monopolistic company can derive more profit by vertically differentiating the product line. It is also shown that, for more profit, the monopolistic company should keep the quality difference between the high quality product and the low quality product as greater as possible.

• Industrial Engineering and Management Systems
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• 제15권4호
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• pp.335-344
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• 2016

Construction project is a competitive business with high risk especially in developing countries like Iran which faces with many problems such as delay and time and costs increases. Thus, the first priority here is to determine the causes of prolongation of construction projects and to evaluate their importance. Khuzestan Steel Company (KSC) has made important contribution to the projects in Iran and in turn is required to finish them on time. In this study, an attempt was made to investigate the causes of delay in implementation of construction projects held by this company. Data was collected through questionnaire distributed among the sample including 10 owners, 10 consultants and 15 con-tractors. Accordingly, participants rated the causes in the questionnaire so the most important priorities of each area were specified using TOPSIS method. The results showed that according to the employers, consultants and contractors' viewpoints, the most important reason for delays in construction projects of KSC is related to the financial matters. Hence, according to the results obtained, causes for delays in the company's projects are largely related to the drilling permits and long administrative cycle to renew them. Besides, continuous production of steel in this company is another reason to delays of construction projects.

• Journal of Electrical Engineering and Technology
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• 제13권5호
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• pp.1821-1830
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• 2018

With the wide application of intelligent household appliances, the optimization of electricity behavior has become an important component of home-based intelligent electricity. In this study, a multi-objective optimization model in an intelligent electricity environment is proposed based on economy and comfort. Firstly, the domestic consumer's load characteristics are analyzed, and the operating constraints of interruptible and transferable electrical appliances are defined. Then, constraints such as household electrical load, electricity habits, the correlation minimization electricity expenditure model of household appliances, and the comfort model of electricity use are integrated into multi-objective optimization. Finally, a continuous search multi-objective particle swarm algorithm is proposed to solve the optimization problem. The analysis of the corresponding example shows that the multi-objective optimization model can effectively reduce electricity costs and improve electricity use comfort.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2003년도 춘계학술발표대회 요약집
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• pp.171-171
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• 2003

• 산업경영시스템학회지
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• 제30권3호
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• pp.20-27
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• 2007

A company establishes a sale strategy through the inventory to set the purchasing requisite of the customer in a global company environment. And a sale company can become the reason of a sale opportunity loss because of a customer satisfaction rate if it does not have the all thing to want a purchasing company in a business-to-business. This paper analyzes the association relation of the goods which the customer orders. And we use a datamining technique for an association analysis of goods. The result of such analysis enhances the ability to get the orders of customer and may minimize a sale opportunity loss. We present a case of the 'D' company inventory management system, in order to verify the effect of the proposal system.

• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2006년도 추계학술발표논문집
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• pp.331-334
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• 2006

This paper proposes the selection model of the telecommunication company using an analytical hierarchy technique. When selecting a telecommunication company, consumers conflict the difficulty in decision-making because there are many competitive and complementary factors of telecommunication companies. To select an optimum telecommunication company, consumers need to consider a number of different quantitative and qualitative factors such as fare, various services, additional function and so on. In this study, we develop the method for selecting the telecommunication company considering various factors to help consumers' decision-making for their benefits.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 1994년도 수공학연구발표회논문집
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• pp.411-416
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• 1994

• 시스템엔지니어링학술지
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• 제14권1호
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• pp.52-62
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• 2018

A software support system, called procurement engineering management support system (PeMSS), is currently under development through a joint research project. The procurement-related scenarios considered in this research is as follow: an EPC (Engineering, Procurement and Construction) company receives an EPC project contract and starts the project to deliver the agreed system to the acquirer. In order to acquire the required equipments that the EPC company does not produce by itself, it eventually interacts with subcontractors, also called vendors. The EPC company responsibilities during the procurement activities are twofold. First, the EPC company has to guarantee that it has ordered the equipment, through issuing Purchase Order (PO), based on the requirements stated in the contract. Second, the EPC company has to verify that the received equipment designs, called Vendor Print (VP), meet the specifications in the PO, before finally acquiring the equipments. During our survey study, we discovered that EPC company takes a lot of time and effort to create PO and verify VP, mainly because these activities are performed manually by the responsible engineers. Therefore, we intent to support the above activities by developing a support system to the legacy procurement system that can trace the requirements from the contract to the PO and VP, among other functionalities. At the time of the writing of this paper, PeMMS is still under-development, thus, in this paper we focus on presenting the development steps of PeMMS using systems engineering theory and introducing the PO creation function. Wholly, PeMSS attempts to reduce the time and effort of engineers on the procurements activities while also increasing the quality of the procurement outcomes.

• 대한안전경영과학회지
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• 제17권1호
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• pp.265-270
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• 2015

In industrial society, the core competency of company was depend on the productivity. However the knowledge information era of the 21st century, the market power moved to downstream, the core competency of company is moved from productivity to how to make the products meet the market. Inventory was the burden of the company management. Most of company trying to reduce the inventory. In this study, analyze the impact of inventory to company's operating profit and the impact of distribution center consolidation to total inventory of company.