• The Journal of Information Systems
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• v.20 no.2
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• pp.135-154
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• 2011

The Sido.Saeol system, a local government information system cost too much for having been designed and developed during last four years but the effectiveness of this system is still open to doubt. Also maintenance cost is still too high and become increasing year by year. To find out the reasons and to suggest how to solve these problems, a service quality of an Sido Saeol system and the public servant's job satisfaction were investigated based on the Delone and McLean's updated IS success Model(2003). To investigate of the effectiveness of the Sido Saeol system, 8 variables are analyzed to test 3 main hypothesis. After all the analysis, we found that Sido.Saeol systems have many aspects to be improved for system use and job satisfaction and have to be revise in the aspects of system qualities.

• Proceedings of the Korean Society for Quality Management Conference
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• 2010.04a
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• pp.91-96
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• 2010

우리나라의 승강기 기술은 유럽, 미국, 캐나다의 기술표준을 도입함으로써 선진화를 꾀해오고 있으나, 초기의 틀에서 크게 벗어나지 못하고 있을 뿐만 아니라 품질서비스가 아직도 취약한 실정이다. 그 동안 서비스 품질의 정확한 구성요인을 파악하기 위한 연구가 다양하게 이루어져 왔지만, 대부분 서비스품질의 구성요인들 중 기능적 품질에만 국한된 연구가 주류를 이루어 왔으며, 서비스품질 구성요소를 통합한 승강기 유지보수산업에 대한 실증적인 연구는 거의 이루어지지 않은 실정이다. 이에 본 연구에서는 승강기 유지보수산업의 서비스 품질속성에 대한 고유속성과 척도 도출을 통해 경영성과 요인으로서의 고객만족도와 재무 비재무적 성과에 어떠한 영향을 미치는지에 대하여 실증분석하였다. 본 연구의 결과는 우리나라 중소벤처승강기 유지보수 산업의 서비스 품질 제고를 전략의 수립에 기초적인 자료로 활용될 수 있을 것이다.

• Proceedings of the Korean Society for Quality Management Conference
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• 2010.04a
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• pp.200-205
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• 2010

우리나라의 승강기 기술은 유럽, 미국, 캐나다의 기술표준을 도입함으로써 선진화를 꾀해오고 있으나, 초기의 틀에서 크게 벗어나지 못하고 있을 뿐만 아니라 품질서비스가 아직도 취약한 실정이다. 그 동안 서비스 품질의 정확한 구성요인을 파악하기 위한 연구가 다양하게 이루어져 왔지만, 대부분 서비스품질의 구성요인들 중 기능적 품질에만 국한된 연구가 주류를 이루어 왔으며, 서비스품질 구성요소를 통합한 승강기 유지보수산업에 대한 실증적인 연구는 거의 이루어지지 않은 실정이다. 이에 본 연구에서는 승강기 유지보수산업의 서비스 품질속성에 대한 고유속성과 척도 도출을 통해 경영성과 요인으로서의 고객만족도와 재무 비재무적 성과에 어떠한 영향을 미치는지에 대하여 실증분석하였다. 본 연구의 결과는 우리나라 중소벤처승강기 유지보수 산업의 서비스 품질 제고를 전략의 수립에 기초적인 자료로 활용될 수 있을 것이다.

• Journal of the Korean Society for Railway
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• v.8 no.3
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• pp.286-292
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• 2005

In this paper, we introduce IEC 60300(Dependability program management) into urban transit system, and propose effective method to apply IEC 60300 to Subway Corporation. The dependability is the collective term used to describe the availability performance and its influencing factors such as reliability performance, maintainability performance and maintenance support performance. A dependability program covers all phases of a system's life cycle from planning to operation and possibly disposal, and is composed of program elements divided into tasks.

• Proceedings of the KSR Conference
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• 2007.11a
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• pp.419-431
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• 2007

The track and rail surface geometry is of prime importance on the requirement for track dynamic stiffness, particularly for the speed of 350 km/h, for which both the requirement for fatigue and tensile strength limits require a lower stiffness than 100 kN/mm, which is near the value for ballasted track. However, the track quality has been considered as being the same for 350 km/h as that for 300 km/h, and based on ballasted track, and the track geometry may be kept in better condition with a slab track(probably more similar to the medium quality track geometry of ballasted track). In conclusion, under the condition that the track geometry quality provided by the concrete slab system is fairly good, and that the required maintenance is applied to the rail surface, there would be no safety risk if the fastening system point stiffness reaches 160 kN/mm for 300 km/h operation, and 110 N/mm at 350 km/h.

• Journal of the Korean Society of Tobacco Science
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• v.14 no.1
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• pp.57-65
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• 1992

The quality of cut tobacco will be deteriorated due to weather conditions such as temperature and relative humidity, when shipping and long term storaging. The change of equilibrium moisture contents in cut tobacco were under influence of relative humidity and temperature but not humectants. Therefore internal packing materials are necessary for cut tobacco to maintain initial quality, including taste, flavour and musty smell during shipping or storaging. When packing cut tobacco for shipping or long term storaging, desiralbe packing density was 200/$m^2$, For the long term storage under R.H 90% and 3$0^{\circ}C$, polyethylene film thickness suitable for packing material are above 100$\mu$, which resulted in 42days of shelf life.

• Journal of Korean Society for Quality Management
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• v.38 no.3
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• pp.449-462
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• 2010

In this Paper, We analyzed influence Factor to TPM Performance in medium and small enterprises by empirically. By Literature survey, We hypothesize education training and 5S influence to individual improvement, independence maintenance, planning and foresight, which also influence to flexibility, total equipment performance, quality, which finally influence to lower cost, delivery date. To analyze empirically, we survey questionnaire in medium and small enterprises being below 300 people. From statistical analysis, 7 hypotheses are rejected, which is different existing research. This is analyzed that reflect actuality that medium and small enterprises is different from large enterprises. We expect that result of this treatise does concentration effort in important factor to get TPM performance in medium and small enterprises.

• Journal of Korean Society for Quality Management
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• v.41 no.3
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• pp.413-421
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• 2013

Purpose: System availability and life cycle cost are often used to evaluate the system performance and is influenced by the operation and maintenance characteristic. In this paper, we propose the method to improve life cycle cost and satisfy the target availability through redundancy allocation. Methods: We consider the redundancy is available at all items in multi level system. Thus, we assume that sub-assembly, module, components can be duplicated. Simulation and genetic algorithm are employed to optimize redundancy allocation. Results: Target availability is higher, the life cycle cost is increased. In addition, the items for redundancy are selected at higher level in multi level system if target availability is higher. Conclusion: We could know that target availability affects the duplication number of items and the selection of redundancy items. For further study, we will consider new optimization algorithms to compare with the proposed GA algorithm and improve optimization performance.

• Proceedings of the Membrane Society of Korea Conference
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• 1995.10a
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• pp.106-122
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• 1995

Industrialization has given humanity many benefits, such as material abundance and conveniences. However, it has also caused detrimental side effects to the environment which are becoming a global problem. During the 1960's, the national economic scale in Korea was expanded and personal lifestyles rapidly improved. These improvements also caused environmental problems such as water contamination. Water contamination caused by old, worn water pipes, harmful materials and deposits from the water purification processes decreased the tap water quality, causing unpleasant odors and tastes. Due to poor maintenance of the reservoir facilities of tap water quality, citizens lost their faith in the water quality. In the long term, it made us worry about the health of our nation's citizens (6,16).

• Journal of Korea Technology Innovation Society
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• v.2 no.1
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• pp.74-89
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• 1999

The purpose of this study is to identify in two aspects the relationship between standardization activities and technological development at the firm level. The first aspect is to analyze the relationship between the current Korean industrial standards system and the firm's technological development vis-a-vis quality standards. The analysis reveals that even if Korean firms recognize the importance of standards, the level of product quality of the KS mark is still lower compared to the average world level. The survey also reveals that the reasons for acquiring ISO and KS marks are mainly aimed at enforcing company image and increasing quality management mind, rather than to foster technological innovation. The second aspect explores how much Korean industrial standards (KS marks) affect the firm's technological development in the Process of standards acquisition activities. The survey results show that standardization activities have a less positive impact on technological innovation than on the maintenance of consistent production works.