• Journal of Korean Institute of Industrial Engineers
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• v.41 no.1
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• pp.86-96
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• 2015

A lot of research works in the BPM area focuses on the development of new techniques in process mining. Even though the application of process mining to analyze real life process logs is important, only few case studies are available. Thus, in this paper, we conduct a case study on how to analyze a real life process log which comes from a Korean company in the heavy industry area. We analyze a customer service process that consists of a series of activities to enhance the level of customer satisfaction. In this case study, five research questions are derived based on collected questions from the company. Then we focus on bottleneck analysis, basic performance analysis and pattern analysis that are selected in order to answer the research questions. The analysis shows some abnormal behaviors in the process and possible ways to improve current processes are suggested.

• Proceedings of the KIEE Conference
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• 2005.05a
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• pp.75-77
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• 2005

An integrated I&C architecture for nuclear power plants is designed by the systems and devices being developed in a project. Its design reference is the APR1400 that was design certified in Korea. Digital equipment and several kinds of data communication networks (DCN) are used. To confirm the validity of DCN based architecture design, the traffic loads fur each network were calculated assuming the anticipated maximum traffic condition. The analysis showed that the utilizations of all networks satisfied the design requirements.

• Proceedings of the Korean Nuclear Society Conference
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• 2004.10a
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• pp.1035-1036
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• 2004

• Proceedings of the Korean Nuclear Society Conference
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• 2004.10a
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• pp.1041-1042
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• 2004

• Proceedings of the Korean Nuclear Society Conference
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• 2005.10a
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• pp.394-395
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• 2005

• Journal of Navigation and Port Research
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• v.31 no.8
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• pp.741-750
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• 2007

The purposes of the study are as follows; First, to find out valid variables from preceding studies which expedite and revitalize the electronic information sharing between shipping company and container terminal and (to) verify the effect empirically. Second, to examine the impacts of electronic information sharing between shipping company and container terminal on performance by empirical research. The results are as follows; First, the degree of support by the CEO, the stage of information technology infrastructure, committment and dependence were proved as valid factors affecting the electronic information sharing between shipping company and container terminal. Second, it was proved that the electronic information sharing between shipping company and container terminal has influenced on the performance.

• Journal of the Korean Geographical Society
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• v.41 no.1 s.112
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• pp.58-72
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• 2006

The importance of R & D activities has been emphasized in modem economy due to rapid growth of high-tech industry. This research has taken a macroscopic approach to understand the spatial location pattern of company-affiliated R & D institute. According to the result based on this analysis, a number of company-affiliated R & D institutes have shown high centralization in Seoul Metropolitan Area(SMA); however, more serious analysis has shown that institutes have different regional tendencies based on their industrial classifications with lower high-tech tendencies show less centralization in the SMA. Moreover, it also has indicated that larger corporations or higher capability of hiring top class researcher have tendency to decentralize their institutes. The result also points out that institutes are likely to be located near their head offices or factories; or located along with other research institutes in the same industrial field. The locations of the institutes, however, have shown the regional differences as well. After taking all the characteristics into consideration, this study has categorized types of institutes locations into four groups.

• Journal of the Korean Institute of Rural Architecture
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• v.17 no.1
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• pp.19-26
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• 2015

The old Samcheok construction company housing in Donghae City was built for employees of Nitrogenous lime factory with railway construction in 1939. The 31 company houses are arranged in a rows including a House A, two No. 2 and 3 Houses, a dormitory, 12 row houses of two households, and 15 row houses of four households. At present, they are preserved with prototype at that time of building as a private company. Researching the architectural characteristics from A and No. $2{\cdot}3$ detached houses of them, the results are as follows. The tea room, living room, and kitchen are centralized and connected with toilet, bathroom, and maid's room by corridor. The exterior wall was finished with paintwork on cement mortar on stud wall framing plastered. The key exterior elements such as diamond shaped asbestos slate, large openings, corner bay window, lintel cornice are in accordance with drawings that they were first designed. The wooden roof structure is based on the structure that supports transverse load with a beam and beam plate instead of thrust. The kitchen and toilet are remodelled and only seem to be a mere shadow of their former self, but the position of sink and toilet bowl is the same as before.

• Journal of the Korean Institute of Navigation
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• v.22 no.4
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• pp.1-14
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• 1998

There are three basic modes of operation of ships: liner, tramp and industrial operations. Industrial operations, where the owner of the cargo, i.e. the industrial carrier controls the ships, abound in the shipment of bulk commodities, such as oil, chemicals and ores. Industrial carriers strive to minimize the shipping cost of their cargoes. This paper is concerned with the operational optimization problem of a fleet owned by major international oil company. The major oil company is a holding corporation for a group of oil producing, transporting, refining, and marketing companies located in various countries throughout the world. The operational optimization problem of the fleet is divided into two-phases. The front end corresponds to the optimization of transporting crude oil, product mix, and the distribution of product oil to meet market demand. The back end tackles the operational optimization problem of the fleet to meet the transportation demand derived from the front end. A case study is carried out with the H major oil company problem composed by reflecting the practices of an international major oil company. The results are summarized and examined in the point of optimization for the total operation of the H major oil company and the operational optimization problem of the fleet. The paper concludes with the remark that the results of the study might be useful and applicable in practices of these related decision problems.

• International conference on construction engineering and project management
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• 2020.12a
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• pp.30-37
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• 2020

In the building construction, the steel-frame work occupies an important position in terms of structure, cost and quality. Especially in Japan, steel frames have traditionally been the main structure of many buildings. For steel-frame works in such positions, this paper investigates an existing steel fabricator to clarify the actual conditions of design decision making process and management method in steel production process. This study focuses on a steel fabricator (Company M in the following sentences), whose main market is Japan and which has facilities in Thailand, China, and Japan. Company M uses QR codes to control the production status of products, and exchanges all information between inside and outside the company via specialized departments in the form of documents. The authors have already analyzed the relationship between production lead time and defect rate based on actual project data at Architectural Institute of Japan in 2016. In 2019, we expressed the process from the confirmation of the design information of the current steel frame to the production by WBS, and clarified the relationship between the production lead time and steel frame product quality structurally. In this paper, the authors reoport the progress of the survey conducted so far, the positioning of the collected data, and the future survey policy.