• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.1
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• pp.460-465
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• 2014

The Financial Supervisory Institution constantly has tightened the regulation for secure electronic financial service. Information Security Consulting and Service companies are not enough to cover about 4,500 financial institutes required to comply with the regulation, and the Financial Supervisory Institution also suffers from work overload. The demand for real-time work of risk management is getting stronger. Compliance with the regulation has to be attempted with technical approach so that requirement, implementation, monitoring, and supervision are efficiently performed. And, articles have to be concluded with compliance management service. In this research used compliance management framework and IT GRC process model, have to be designed compliance management lifecycle and 34 index.

• Journal of Korean Institute of Industrial Engineers
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• v.41 no.3
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• pp.259-266
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• 2015

Among many energy resources, natural gas has recently received a remarkable amount of attention, particularly from the electrical generation industry. This is in part due to increasing shale gas production, providing an environment-friendly fossil fuel, and high risk of nuclear power. Because South Korea, the world's second largest LNG importing nation after Japan, has no international natural gas pipelines and relies on imports in the form of LNG, the natural gas has been traditionally procured by long term LNG contracts at relatively high price. Thus, there is a need of developing an Asian LNG trading hub, where LNG can be traded at more competitive spot prices. In a natural gas spot market, the amount of natural gas to be bought should be carefully determined considering a limited storage capacity and future pricing dynamics. In this work, the problem to find the optimal amount of natural gas in a spot market is formulated as a Markov decision process (MDP) in risk neutral environment and the optimal base stock policy which depends on a stage and price is established. Taking into account price and demand uncertainties, the basestock target levels are simply approximated from dynamic programming. The simulation results show that the basestock policy can be one of effective ways for procurement of LNG in a spot market.

• The Journal of Society for e-Business Studies
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• v.11 no.1
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• pp.127-144
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• 2006

This paper presents Web service based ASP (WS-ASP) model for QR(Quick Response) system, supply chain management system in the textiles and clothing industry. The Korean textiles and clothing industry is mostly composed of medium and small-sized companies, which are not capable of recruiting If specialists and making a large scale investment in IT. ASP model not only let them obtain QR system at relatively low usage cost, but also take higher vendor risk due to high dependency. This paper argue that WS-ASP model is appropriate for QR systems by complimenting ASP model with lower vender risk, which results from re-integrating software-on-demand services distributed to several QR specialized WS-ASP vendors.

• Korea Journal of Hospital Management
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• v.17 no.4
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• pp.133-166
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• 2012

Hospitals tend to provide uniformed service to patients despite their various demands stemming from the severity of disease stages or the uncertainties in information of treatment stages. To identify service factors and provide effective contextually aware service models that patients demand depending on their evolving circumstances, the study conducted a survey on service quality based on importance and satisfaction of cancer patients. The study surveyed 286 patients and caregivers on importance and satisfaction through a questionnaire comprising of 17 questions at the outpatient clinic of cancer centers of university hospitals in 5 cities. Based on the risks of the disease and uncertainties in information of treatment stages, the cancer patients were grouped into diagnosis stage; low-risk treatment stage; high-risk treatment stage; stabilization stage. Depending on the patient's situation, the importance and satisfaction of service factors were ranked. These factors were categorized into 4 groups from a managerial perspective into 'keep it up area', 'focus here area', 'low priority area', 'overdone area'. This study provides an effective medical service model that can accommodate patients based on management areas of cancer patients.

• Korean Journal of Occupational Health Nursing
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• v.25 no.4
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• pp.300-310
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• 2016

Purpose: Few studies have considered the psychosocial work environment factors in relation to employee health. This study explored the relationship between psychosocial work characteristics and self-rated health among Korean employees. Methods: The study population of 21,476 employees was derived from the 2014 Korean Work Environment Survey (KWES). Psychosocial work environment was measured by Copenhagen psychosocial questionnaire scales. Results: Among employees at workplaces (n=21,476), 23.3% rated their health as poor. Among 12 indicators of psychosocial work environment characteristics, 'higher emotional demand', 'demands for hiding emotions', 'work-family conflict', and 'social community at work' were independently associated with risk of poor self-rated health of Korean employees after adjustment of all sociodemographics, work condition characteristics and physical work environment exposure. In addition, higher 'possibilities for development' and 'social support from supervisor' were more likely to decrease the risk of poor health. Conclusion: We suggest that psychosocial work environment is an important determinant of employees' health. The study results provide a good starting point for developing intervention and strategies for health improvement.

• Journal of the Korean Operations Research and Management Science Society
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• v.37 no.3
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• pp.135-150
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• 2012

This paper presents a portfolio model for a long-term power generation mix problem. The proposed portfolio model evaluates generation mix by considering the tradeoffs between the expected cost for power generation and its variability. Unlike conventional portfolio models measuring variance, we introduce Conditional Value-at-Risk (CVaR) in designing the variability with aims to considering events that are enormously expensive but are rare such as nuclear power plant accidents. Further, we consider uncertainties associated with future electricity demand, fuel prices and their correlations, and capital costs for power plant investments. To obtain an objective generation by each energy source, we employ the sample average approximation method that approximates the stochastic objective function by taking the average of large sample values so that provides asymptotic convergence of optimal solutions. In addition, the method includes Monte Carlo simulation techniques in generating random samples from multivariate distributions. Applications of the proposed model and method are demonstrated through a case study of an electricity industry with nuclear, coal, oil (OCGT), and LNG (CCGT) in South Korea.

• Journal of Korean society of Dental Hygiene
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• v.12 no.1
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• pp.67-79
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• 2012

Objectives : The study was carried out to find out the experience of musculoskeletal disorder symptoms of dental hygienists and evaluate the risk with ergonomic evaluation method(RULA). Methods : The subjects in this study were 344 dental hygienists working at dental clinics and general hospitals in Seoul, Gyeonggi, Daejeon and Chungnam/Chungbuk. The data were collected through the self-questionnaire survey from July 26th 2010 to September 30th 2010. Results : The results showed that those who working at dental hospital, network dental clinics, with 1-5 years of clinical experience, long working hour and sitting hour, no rest hour, more physical and mental burden had higher rate of the experience of musculoskeletal disorder symptoms compared with other groups. The final score of RULA evaluation results was 6 on average requiring continuous observation and urgent demand for work improvements. According to the result of RULA evaluation by work, the orthodontic clinics were 4.5, prosthodontic clinics were 5.0, and dental surgery clinics were 6.8 being the most risky. Conclusions : The study showed high complaints rate on musculoskeletal disorders in dental hygienists. Thus, various measures including provision of proper working and rest hours, use of ergonomic working equipments, strengthening the health education for desirable working posture and the development of musculoskeletal disorder prevention program should be needed.

• Structural Engineering and Mechanics
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• v.39 no.4
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• pp.559-578
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• 2011

In regions of high seismic risk, high-strength concrete (HSC) columns of tall buildings are designed to be fully ductile during earthquake attack by providing substantial amount of confining steel within the critical region. However. in areas of low to moderate seismic risk, the same provision of confining steel is too conservative because of the reduced seismic demand. More critically, it causes problematic steel congestion in the beam-column joints and column critical region. This will eventually affect the quality of concrete placing owing to blockage. To relieve the problem, the confining steel in the critical region of HSC columns located in low to moderate seismicity regions can be suitably reduced, while maintaining a limited ductility level. Despite the advantage, there are still no guidelines developed for designing limited ductility HSC columns. In this paper, a formula for designing limited ductility HSC columns is presented. The validity of the formula was verified by testing half-scale HSC columns subjected to combined high-axial load and flexure, in which the confining steel was provided as per the proposed formula. From the test results, it is evident that the curvature ductility factors obtained for all these columns were about 10, which is the generally accepted level of limited ductility.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.05a
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• pp.752-754
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• 2016

Power is compared to the overall share of energy continues to increase, so as a way for efficient demand management and value added according to the AMR system was introduced. But there is a risk in a variety of external attack, such as when you use the remote meter reading system, cyber attacks and hacking. It is considered that the measures sought, which can be used to prevent or pre safer urgent. In this paper, I want to point out the current research trends and issues of security authentication technology of remote meter reading system.

• Journal of Korean Society for Geospatial Information Science
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• v.10 no.1 s.19
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• pp.67-76
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• 2002

At a recent, with an increase of traffic demand and a spread of automobile culture, the safety, convenience and speed of highway is required. On this study, using the real time kinematic GPS, observation value at a center line of ready-built road is obtained and then design specification of highway, IP, IA and R are obtained by least square method. Using those IP, IA and R, we analysed the risk factor of highway alignment by the standard for structure and facility of the road. With using RTK GPS, we could analyse dangerous element of highway alignment rapidly and cope with dangerous area of the existing road. It is also proved to apply availably whether we determine alignment improvement is needed or not or analyze source of accident related with alignment in the region having a high traffic accident rate.