• Proceedings of the KIPE Conference
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• 2014.07a
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• pp.91-92
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• 2014

This paper will discuss the experimental result for the monitoring module that enables analysing breakdown by adding the monitoring circuit to our prototype power supply that temporarily saves electrical status of the main parts. The purpose of this experiments with various power supplies were to provide technical background for quick assumption of causes and to suggest the method for analysing them.

• The Journal of Sustainable Design and Educational Environment Research
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• v.14 no.3
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• pp.18-27
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• 2015

2009 As the School District is amended as a metropolitan area public development operators obliged to free supply of school facilities contribute to the streamlining of the provincial education funding, and although institutions shortly became implemented in earnest, the effect has been, despite a number of problems occur. In this study, analysis of these school facilities free of charge supply system on the status and problems through surveys, and suggests directions for future drafting and improving legislation.

• The Transactions of the Korean Institute of Electrical Engineers A
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• v.48 no.5
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• pp.517-523
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• 1999

The Start-up transformers or on-site stand-by transformers are installed for the start-up and shut-down of generator and emergency status in unclear power plant. The on-site power supply configuration using these transformers must be detemined by considering configuration requirements, site characteristics, reliability and availability severely because it is remarkably important for safety and benefit of plant. The start-up or stand-by power supply configuration has been determined considering only safety requirements and construction cost up to now in Korea. I study various reliability estimating methods for the prediction of availability, and estimate the unavailability for the start-up power supply system of two 1,000㎿ unclear power plants. I also detemine the reliability and unavailability and unavailavility of equipment, system and configuration using FTA method.

• Proceedings of the KIPE Conference
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• 2017.07a
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• pp.216-218
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• 2017

The imbalance at the 3-phase side at the railway power supply substation has been a well-known issue. Due to the difference in status of loads at each phase at any given moment, it is difficult to maintain the balance in the 2-phase side of the transformer. Consequently, the 3-phase side also presents a certain level of imbalance as well. A co-phase power supply was proposed as a solution. The real application of such system is gradually expanding, proving the effectiveness of the system. In this paper, the application of the single phase D-Q rotating frame theory was applied to the control of the co-phase power supply system. In addition, the power stack of the system was composed of MMC valves, which offers superior operational characteristics. The effectiveness of the system was verified with a real-time simulation, and the results are presented.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.10a
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• pp.567-569
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• 2021

The power battery supply chain in China currently lacks stable cooperation and effective information exchange. The competitive pressure brings about irregular recycling channels, reducing the operation and efficiency of the power battery supply chain. Besides, some regular power battery recycling enterprises fabricate data to obtain subsidies by taking advantage of the loopholes in the relevant policies of the state on recycling subsidies. Due to the high price of recycling in the black market, some regular enterprises resell the batteries recycled through regular channels, later purchasing the batteries with no utilization value to obtain the national recycling subsidies by cheating at the same time. Fig. 3 shows the present network structure of the tradi tional Chinese power battery closed-loop supply chain

• Health Policy and Management
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• v.27 no.1
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• pp.88-94
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• 2017

The aim of this study was to investigate the current and trend of healthcare status of South Korea compared to Organization for Economic Cooperation and Development (OECD) countries. We used the position value for relative comparison (PARC) method for measuring the healthcare status of South Korea by five parts of healthcare policy (demand, supply, accessibility, quality, and cost). Additionally, we conducted Mann-Kendall test for analyzing the trend of PARC from 2000 to the present. Demand, supply, accessibility, and quality of healthcare of Korea were located upon the average of OECD countries, and showed an increasing trend from 2000 to the present. However, primary care and screening for cervical cancer were placed at a lower level compared the OECD average. In conclusion, the current state of healthcare in Korea seems to be generally beyond the average among OECD countries. However, some parts, including primary care, need to be improved.

• Current Research on Agriculture and Life Sciences
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• v.3
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• pp.203-218
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• 1985

In Korea, the developmental gap is deep between rural and urban areas in spacial aspect and, or between agricultural and industrial side. So there are much room for improvement in agri. development in national standpoint as well as in individual farmer's level. In this respect, agricultural financing is requisitive to speed up the pace of agricultural development and in result, to contribute to improvement of farm income. By the way, farmers' credit demands are always in excess-demand status and they rely on private money-lenders in the burden of high interest rate. In agricultural financing market, there are two kinds of credit ; institutional credit and non-institutional credit market, that is private money-lending. In institutional credit, there are mutual credit system operating by the primary coops and policy credit system by NACF financed by Government in part. Here, in this paper, I venture to study on the improvements of the policy credit system to increase and activate the supply function of agri. policy credit into farmers to enhance their socio-economic status.

• Journal of Korean Society of Environmental Engineers
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• v.28 no.9
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• pp.893-902
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• 2006

• Journal of Korean Society of Water and Wastewater
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• v.19 no.5
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• pp.521-528
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• 2005

• Journal of Korean Clinical Nursing Research
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• v.20 no.3
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• pp.303-312
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• 2014

Purpose: This study aimed to use the DACUM analysis technique and identify the job description among nurses of the Central Supply Department, in order to clarify their duty and task descriptions, identify the characteristics of job. Methods: Through a DACUM workshop, job descriptions, and the job duties and tasks were derived. A total of 150 nurses from the Central Supply Departments of medical Institutions over 100 beds were surveyed using drafting and a job analysis table. Individual jobs' frequency, importance and difficulty were measured using a 3-point scale, and the results were analyzed using SPSS. Results: The nurses' job in the Central Supply Department consisted of 13 duties and 64 tasks. Duties with highest importance and difficulty was 'sterilization assurance system', the second was 'employee safety management' and the duty with highest frequency was 'manage packaging before sterilization'. Conclusion: This study clarified the types of nursing jobs in the Central Supply Departments, as well as identified the job characteristics and status in the given setting. Given the sterilization assurance system for preventing hospital infection, and safety management for ensuring work environment safe were found to be important duties, it is suggested for the department to stress those important jobs for managing hospital safety.