• International Journal of Quality Innovation
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• v.8 no.2
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• pp.132-146
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• 2007

Constructing an effective production control policy is the most important issue in wafer fabrication factories. Most of researches focus on the input regulations of wafer fabrication. Although many of these policies have been proven to be effective for wafer fabrication manufacturing, in practical, there is a need to help operators decide which lots should be pulled in the right time and to develop a systematic way to alleviate the long queues at the bottleneck workstation. The purpose of this study is to construct a photolithography workstation dispatching rule (PADR). This dispatching rule considers several characteristics of wafer fabrication and influential factors. Then utilize the weights and threshold values to design a hierarchical priority rule. A simulation model is also constructed to demonstrate the effect of the PADR dispatching rule. The PADR performs better in throughput, yield rate, and mean cycle time than FIFO (First-In-First-Out) and SPT (Shortest Process Time).

• Journal of Korean Society for Quality Management
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• v.42 no.4
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• pp.543-562
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• 2014

Purpose: The purpose of this study is to suggest a modified approach that compensates some shortcomings of RPN with relevant strength of ASIL for Safety System and suggests systematic and logical approach for FMEA. Methods: By comparing the objectives, determination procedures, and key conceptual differences of RPN and ASIL, a refined method of risk evaluation and a new risk metric are devised. Results: While the traditional FMEA provides only rough evaluation of relative risk for each failure, the proposed method compensates its shortcomings with relevant strength of ASIL and provides a more logical and practical procedure of risk evaluation. Conclusion: The new metric RPM provides not only a comparative priority rank but also the degree of physical seriousness. Besides, it may have even more benefits for various applications if the severity can be expressed as mone tary amount of losses.

• Journal of Korea Game Society
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• v.13 no.5
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• pp.5-18
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• 2013

The Management of Game Money in online game is considered as a crucial factor for successful game business as well as balancing game economy. The generation and flow of game money have a strong relationship with game contents, entertainment factors, game planning and level design. This paper explores online game economy in various ways especially the matter about managing & controlling game money in this context through theoretical and practical perspectives. It also examines how this management makes an effect on 'Free to Pay' policy and Sales revenue. Finally, this paper draws conclusions about the Management of Game Money which can be considered to be practically useful for game development and management. I hope that the study helps further studies and researches and can be served as a foundation regarding the issue.

• Korea Journal of Hospital Management
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• v.23 no.3
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• pp.39-51
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• 2018

The purpose of this study is to find out the relationship among self-efficacy, emotional labor, organizational commitment and job satisfaction of medical tourism employees. This survey was conducted from March 2 to March 31, 2018 and targeting medical tourism employees who work at hospitals, travel agencies, medical tourism agencies and consulting firms in Seoul. 282 questionnaires were analyzed using SPSS 12.0 and AMOS 18.0. The result of this study is as follows. First, self-efficacy positively influenced on emotional labor and organizational commitment. Second, self-efficacy positively influenced on all job satisfaction factors as like job itself satisfaction, salary/promotion satisfaction and relationship satisfaction. Third, deep acting factor of emotional labor positively influenced on job itself satisfaction and relationship satisfaction. Forth, job itself satisfaction and relationship satisfaction positively influenced on organizational commitment. These research findings can be summarized as follows. Medical tourism employees of hospitals, travel agencies, medical tourism agencies and consulting firms have to be supported greatly to improve their own job competency and job qualifications. Second, medical tourism organizations try to understand the real emotion of medical tourism employees when they are dealing with medical tourists. Third, medical tourism employees have to be recognized their job performance and provided suitable incentives for the results. The findings of this study provide practical implications about strategical human resource management of medical tourism agencies. Moreover, it will be useful for hospitals and government officials to establish a management framework in medical tourism industry.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2004.11a
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• pp.370-375
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• 2004

The management of daily work report is very important due to the variety of work trade and activities. Although various project management systems have been developed to effectively deal with various task in site, they are not in practical use due to the non-coorperative attitude of sub-contractors. This is the reason the system are not developed in the focus of sub-contractors, but main contractors and the detail information about daily work report is omitted or lost in the collection process by contractors. Therefore the purpose of this study was to propose the Web-based coordination system for daily work report between contractor and sub-contractors

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2008.02a
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• pp.43-46
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• 2008

디지털 증거의 수집은 컴퓨터 포렌식 수사절차에서 매우 중요하다. 디지털 증거는 특히 용의자가 범죄 과정에서 노출한 증거들을 획득한다는 것에 의미가 있으며, 현재 이러한 디지털 증거 수집을 위한 많은 도구들이 활용되고 있다. 그 중 LiveCD는 대상 운영체제의 영향을 받지 않고, CD 자체를 통해 저장된 다양한 포렌식 툴을 사용 할 수가 있다. 또한 여러 종류의 파일 시스템을 지원하기 때문에 초기 대응에 아주 유용하게 사용되며, 위 과정을 통해 수집된 데이터는 무결성 검증을 통해 증거 수사에 활용된다. 현재 여러 가지 LiveCD를 수사에 활용하고 있으나, 각 도구들 마다 지원하는 포렌식 툴이 다르고 지원하는 운영체제도 다양하다. 따라서 상황에 따라 적절한 LiveCD를 활용하는 것은 매우 중요하며, 이를 통해 증거의 수집을 용이하게 할 수 있다. 따라서 본고에서는 국외의 포렌식용 LiveCD 현황에 대한 조사 및 비교 분석하여 국내 수사 환경을 고려한 LiveCD 활용 방안에 대해 제시 한다.

• Journal of the Society of Naval Architects of Korea
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• v.50 no.3
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• pp.129-137
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• 2013

Each owner or operator of offshore products uses a maintenance management system like CMMS(Computerized Maintenance Management System) in order to manage their assets effectively and efficiently for a long time. But most of maintenance management systems have been focused on machinery items, not on 'Hull' until now. On the other hand, classifications like ABS, DNV, GL are having a sale on hull inspection and maintenance system for ships and an interest in hull maintenance system is increasing because of the application of EDD(Extended Dry Docking). This paper discusses the concept, inspection process and the practical application of Hull maintenance for Semi-submersible drilling rig to extend the service life and run a stable operation.

• Journal of the Ergonomics Society of Korea
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• v.36 no.3
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• pp.221-230
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• 2017

Objective: The purpose of this study is to draw the accident prevention model using the signal detection theory, and to implement accident prevention program, based on a health promotion and support activities in a shipbuilding company. Background: Workers' health management is perceived important from the human resource management perspective, as well as from the personal perspective. Method: This study developed an accident prevention model by analyzing the correlation between 704 workers' health examination variables, and reviewed the verification of the model through a follow-up survey on the control variables and status of hazards targeting 650 workers for four years from 2007 to 2010. Also, a health promotion program was implemented targeting a production division to improve alcohol habits, smoking, musculoskeletal pain complaints and hearing control indices, which are the control variables of the model. Results: As a result of four years' implementation, the following effects were obtained: the days away from work fell 87.5%, and accident rate dropped 71.5% in 2010, respectively, compared to 2006, before the activity was implemented. Conclusion: This study shows that the accident prevention activities based on workers' health promotion activities are effective to prevent industrial accidents and injuries. Application: The research findings will serve as a practical guideline for establishing preventive measures in the shipbuilding company.

• Journal of the Korean Society of Food Culture
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• v.10 no.1
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• pp.1-10
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• 1995

The purpose of this study is to identify potentially hazardous factors which can contribute to the outbreak of food borne disease and present more practical management methods in terms of sanitary management of cooking equipment and personal hygiene. 230 Korean-style restaurants in Seoul were surveyed in the same manner on the published study-A study for the Improvement of Sanitary Condition in Korean style-restaurant in Seoul city area (I). Sanitary check-lists were developed to evaluate the sanitary status of cooking equipment and personal hygiene of employee. The sanitary condition of cooking equipment the maintenance of refrigeration, food habits and personal hygiene were assessed by the sanitary score. The sanitary condition of cooking equipment, the maintenance of refrigeration as well as food habits and personal hygiene employee was in good condition. The effective sanitation education and training for good service workers should be practice for the improvement of sanitary management of cooking equipment and personal hygiene.

• Research in Community and Public Health Nursing
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• v.4 no.1
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• pp.38-44
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• 1993

The purpose of this study was to identify the status of health management from Dec 5, 1992 to March 10, 1993. The data. was. collected from 30 industrial nurses, through a structured questionnaire. The results were as follows : 1. 1.50%. of the companies surveyed were manufacturing companies, 24% of them were research center. 2. The sizes of the companies were as follows: 300-499 employees 11(37%). more than 1,000 employees 4(13%). 3. 18 companies(60%) had organized safety and health committees. 4. 25 companies(83%) had there own health clinics. 5. 60% of companies had a Health center assigned as were hospitals 83%. 6. Practical nurses were employed by all industries, 10 companies had their own physicians, and 3 had their own industrial hygienist. 7. The primary health examination rate was 96% and workers who took follow up examinations were 8.5% out of them, 73.6% were evaluated at the C & D grade. Follow Up management to D. evaluations was performed about 50%. 8. 13 personnel(43%) required, special examinations. 9. The relation between the workers health score and the health status, score was negative and not significant. Therefore the better health management the higher health level score.