• Proceedings of the KSR Conference
• /
• 2009.05a
• /
• pp.1989-1992
• /
• 2009

Maintenance is classified preventive maintenance before performing equipment failure and corrective maintenance after performing equipment failure. In preventive maintenance, we may analyze the failure data to end from beginning of equipment and allocate maintenance method and calculate maintenance cycle quantitatively by the failure data analysis. So, it has a merit to reduce system maintenance cost and to operate effectively but, it require high cost in system introducing and continuous operation to end of system. In corrective maintenance, we may calculate MTTR(mean time to repair) quantitatively based on function failure time. it can be based on establishing maintenance system for operation efficiency. In this paper, we may reflect the MTTR for the onboard equipped in Tilting train to establish maintenance system for Tilting train operation efficiency.

• Journal of Korean Institute of Industrial Engineers
• /
• v.21 no.4
• /
• pp.555-570
• /
• 1995

We consider a preventive replacement policy for a cold-standby system with N components, in which only one component is in operation at a time. If the component in operation fails, a standby component is immediately switched into operation. If all components fail, the system fails. The system is inspected at random poins in time to determine whether it is to be replaced or not. If the number of failed components at the time of inspection exceeds a threshold value r, the system is replaced. Otherwise the decision is put off until the next inspection point arrives. Under the cost structure which includes a replacement cost, a system down-time cost and a holding cost of the components, we develop an efficient procedure to find the optimal control values N and r, which minimize the expected cost per unit time.

• Korea Journal of Hospital Management
• /
• v.6 no.2
• /
• pp.37-69
• /
• 2001

A new cost management system, called Activity Based Costing (ABC) system, has arisen to solve the limitation of a Traditional Cost Accounting (TCA) system until last two decades and ABC has been applied by many companies. TCA systems have limitation in tracing cost because they arbitrarily allocate overhead cost to the cost objects without standard for direct cost distribution. ABC is an accounting system that assigns costs to products or services based on the resources they consume. The costs of all activities are traced to the products for which they are performed. Therefore ABC is a cost management system that provides a matrix to accurately quantify consumed resources triggered by activities and activities triggered by products and services. There is little implementation of ABC in the health services field, one of service industries, due to complicated and many activities, and volatile cost object. However, the necessity for applying reasonable cost accounting system is largely issuing as strategy responding hostile environment, and financial pressure, and it is imperative to implement the Activity Based Costing (ABC) system. Therefore, this study presents the framework to develop ABC system for total health service organizations. Cost objects in this study base on medical service activities per health insurance claim from one general hospital located in Metropolitan Statistical Areas (MSAs). Medical service activities include all health insurance claims in the hospital. The purpose of the study is presenting useful tools and basic frame to develop Activity Based Costing system for health service organizations which want to use ABC system. The steps to develop ABC system for health service organizations are following: 1. Identifying of activity centers; 2. Definition of cost objects and activity by activity center; 3. Analysis of activity and tracing activity contribution; 4. Allocation of direct cost for specific activity; 5. Allocation of indirect cost for specific activity; 6. Allocation of depreciation for facilities, applicants, and consumption goods; 7. Allocation of administration cost; 8. Allocation of cost among activity centers; and 9. Tracing cost of cost objects by activity center. This study identified necessary information from existing reports which hospitals generally made by each step, and defined outcome which had to be produced in each step using this information. The steps of this study had limitation to apply all different size hospitals because the steps were structured ABC system by one hospital, however, this study used similar basic framework and methods with general cases. When a health service organization want to apply Activity Based Costing (ABC) system on all activities of it in future days, this study is very useful to design system structure in the health service organization.

• Journal of Preventive Medicine and Public Health
• /
• v.40 no.4
• /
• pp.259-264
• /
• 2007

Effective communicable disease surveillance systems are the basis of the national disease prevention and control. Following the increase in emerging and re-emerging infectious diseases since late 1990s, the Korean government has strived to enhance surveillance and response system. Since 2000, sentinel surveillance, such as influenza sentinel surveillance, pediatric sentinel surveillance, school-based sentinel surveillance and ophthalmological sentinel surveillance, was introduced to improve the surveillance activities. Electronic reporting system was developed in 2000, enabling the establishment of national database of reported cases. Disweb, a portal for sharing communicable disease information with the public and health care workers, was developed. In general, the survey results on usefulness and attributes of the system, such as simplicity, flexibility, acceptability, sensitivity, timeliness, and representa-tiveness, received relatively high recognition. Compared to the number of paid cases of national health insurance, reported cases by national notifiable disease surveillance system, and various sentinel surveillance system, the result of the correlation analysis was high. According to the research project conducted by KCDC, the reporting rate of physicians in 2004 has also greatly improved, compared with that in 1990s. However, continuous efforts are needed to further improve the communicable disease surveillance system. Awareness of physicians on communicable disease surveillance system must be improved by conducting education and information campaigns on a continuous basis. We should also devise means for efficient use of various administrative data including cause of death statistics and health insurance. In addition, efficiency of the system must be improved by linking data from various surveillance system.

• Journal of agricultural medicine and community health
• /
• v.35 no.4
• /
• pp.395-404
• /
• 2010

Objectives: This study was conducted to investigate the relationship between vertical trust in the healthcare system and participation in routine health examinations. Method: Data from the 2008 Pusan Health Survey were analyzed for this study. Multiple logistic regression analyses were performed to investigate the influence of possible confounders (sex, age, education, monthly mean household income, horizontal trust) on participation in routine health examinations according to trust in the healthcare system. Result: In a total sample of 7,683 participants, 3,756 (48.9%) were classified as health examination participants. Respondents with high trust in the healthcare system had significantly higher odds ratios of participation, 1.17 (95% CI 1.03-1.33), after multiple adjustments. Conclusion: Vertical trust in the healthcare system was significantly associated with higher odds of participation in routine health examinations. Improvements to the healthcare system have potential for increasing participation in routine health examinations.

• Journal of Society of Preventive Korean Medicine
• /
• v.11 no.1
• /
• pp.55-64
• /
• 2007

This study was carried out to examine that the SamJae Theory(三才思想) was applied for a philosophic background of medical ethics. SamJae theory is not the system of three categories, which is unlike to the meaning of the word 'Sam(三)', but it is the system of two categories with 天(陽) and 地(陰) which are dividing all creations and phenomenons in the universe into two. Nevertheless, the reason why we divide all the universal creations and phenomenons into three, 天, 地 and 人, and also why we give a name 'SamJae' to this theory using the word 'Sam' meaning three, is to emphasize the human free volition that comes from the independent human life in the universe composed of 天(陽) and 地(陰). In other word, the core concept of SamJae theory is not 天(陽) and 地(陰) but 人 which symbolize the independent free volition of human. Therefore, if we try to use SamJae theory as a philosophic background of medical ethics, we can establish a comprehensive theoretical system including the existing ethical theories such as utilitarianism.

• Journal of Society of Preventive Korean Medicine
• /
• v.22 no.1
• /
• pp.29-44
• /
• 2018

Objectives : This study was conducted to survey on the research trends of Traditional Korean Medicine(TKM) intervention with woman menopausal symptoms in Korea. Method : We searched Korean research database by using keyword 'Menopause'. Korean research databases were Korean Studies Information Service System(KISS), Research Information Service System(RISS) and Korean Medicine Information System(OASIS). We classified articles identified by TKM treatments. Results : We analyzed 63 studies by classifying 4 interventions that consist of acupuncture treatment, herbal medicine, lifestyle modification, complex therapy. According to studies using acupuncture, Sameumgyo(三陰交, SP6) was the most treated. Soyosan(逍遙散) was most treated in herbal medicine studies, and massage was most used in lifestyle modification. Conclusion : A variety of treatment using TKM have been used for menopausal women. It is necessary to increase the level of evidence of TKM intervention through additional studies in the future.

• The Transactions of The Korean Institute of Electrical Engineers
• /
• v.67 no.2
• /
• pp.331-336
• /
• 2018

In this paper, the life cycle cost of the auxiliary power unit in the conventional 8200 series electric locomotive is evaluated and an effective life cycle cost reduction method is sought. For this, a life cycle cost evaluation model was proposed using IEC 60300-3-3 standard. As a result of analysis, material cost which accounted for a large percentage of preventive maintenance cost, accounted for 64% of total cost, and breakdown maintenance cost was as high as 27%. Except for the cost of preventive maintenance, the breakdown maintenance cost ratio was the highest. In order to reduce the LCC of the auxiliary power unit(APU) of the 8200 series in the future, it is necessary to reduce the material cost in case of development and to secure the high reliability according to the parts manufacturing so as to minimize the maintenance cost.

• Journal of Preventive Medicine and Public Health
• /
• v.48 no.6
• /
• pp.265-270
• /
• 2015

The recent Middle East respiratory syndrome coronavirus (MERS-CoV) outbreak has originated from a failure in the national quarantine system in the Republic of Korea as most basic role of protecting the safety and lives of its citizens. Furthermore, a number of the Korean healthcare system's weaknesses seem to have been completely exposed. The MERS-CoV outbreak can be considered a typical public health crisis in that the public was not only greatly terrorized by the actual fear of the disease, but also experienced a great impact to their daily lives, all in a short period of time. Preparedness for and an appropriate response to a public health crisis require comprehensive systematic public healthcare measures to address risks comprehensively with an all-hazards approach. Consequently, discussion regarding establishment of post-MERS-CoV improvement measures must focus on the total reform of the national quarantine system and strengthening of the public health infrastructure. In addition, the Korea Centers for Disease Control and Prevention must implement specific strategies of action including taking on the role of "control tower" in a public health emergency, training of Field Epidemic Intelligence Service officers, establishment of collaborative governance between central and local governments for infection prevention and control, strengthening the roles and capabilities of community-based public hospitals, and development of nationwide crisis communication methods.

• Journal of Preventive Medicine and Public Health
• /
• v.21 no.2 s.24
• /
• pp.380-389
• /
• 1988

This study was conducted in order to find out the attitude of housewives toward the home attendants system, the type of institute managing home attendants, the education for home attendants, the basic requisites for home attendants, and home nursing education, and identify the factors influencing on the housewives's attitude. The data were collected through questionnaires obtained from 401 housewives from March 1 to March 31, 1988. The results summarized were as follows; 1) 90.2 percent of total housewives favored the home attendants system, and housewives who had have their family member with health problem especially showed favorable response. 2) The favored types of institution managing home attendants appeared to be private social work agency(33.0%), half-private and half-public agency(32.2%), government agency(19.9%) and profit agency (2.2%). In particular, housewives who had experienced nursing favored half-private and half-public ageney (37.6%). 3) As the basic requisites for home attendants, housewives wanted service attitude(37.2%), nursing education(34.4%) and nursing experience(28.4%). But, housewives with nursing experience favored nursing education rather than service attitude. 4) 91.1% of total housewives favored the home nursing education. In particular, housewives of high education level and nursing experience showed more favorable response to the home nursing education.