• Journal of The Korean Society of Agricultural Engineers
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• v.49 no.4
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• pp.13-22
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• 2007

The uncertainty in water quality model predictions is inevitably high due to natural stochasticity, model uncertainty, and parameter uncertainty. An integrated modeling system under uncertainty was described and demonstrated for use in watershed management and receiving-water quality prediction. A watershed model (HSPF), a receiving water quality model (WASP), and a wetland model (NPS-WET) were incorporated into an integrated modeling system (modified-BASINS) and applied to the Hwaseong Reservoir watershed. Reservoir water quality was predicted using the calibrated integrated modeling system, and the deterministic integrated modeling output was useful for estimating mean water quality given future watershed conditions and assessing the spatial distribution of pollutant loads. A Monte Carlo simulation was used to investigate the effect of various uncertainties on output prediction. Without pollution control measures in the watershed, the concentrations of total nitrogen (T-N) and total phosphorous (T-P) in the Hwaseong Reservoir, considering uncertainty, would be less than about 4.8 and 0.26 mg 4.8 and 0.26 mg $L^{-1}$, respectively, with 95% confidence. The effects of two watershed management practices, a wastewater treatment plant (WWTP) and a constructed wetland (WETLAND), were evaluated. The combined scenario (WWTP + WETLAND) was the most effective at improving reservoir water quality, bringing concentrations of T-N and T-P in the Hwaseong Reservoir to less than 3.54 and 0.15 mg ${L^{-1}$, 26.7 and 42.9% improvements, respectively, with 95% confidence. Overall, the Monte Carlo simulation in the integrated modeling system was practical for estimating uncertainty and reliable in water quality prediction. The approach described here may allow decisions to be made based on probability and level of risk, and its application is recommended.

• Journal of Digital Convergence
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• v.15 no.9
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• pp.321-333
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• 2017

This study was a qualitative study using Colaizzi's phenomenological study method to understand the experience of reconstructing life through hemodialysis in chronic renal failure patients and to clarify the meaning of their vivid experience. The participants were eight chronic renal failure patients receiving hemodialysis. Data were collected through individual in - depth interviews with participants. The five categories that were found in the study were 'The beginning of unexpected difficulties', 'Burden of survival brought on by hemodialysis', 'The driving force of recovery', 'Choices and concentration of today in order', ' Every day life which must be woven sincerely'. The results of this study will help clinicians better understand the physical and mental suffering experienced by patients with chronic renal failure receiving hemodialysis and how they are constantly trying to adapt to a changed lifestyle. Also it might provide basic data for the development of efficient nursing intervention for the health management of hemodialysis patients.

• Journal of Home Health Care Nursing
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• v.27 no.3
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• pp.294-305
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• 2020

Purpose: The aim of this study was to examine the preliminary effects of applying a developed web-based video education program in patients with cancer receiving chemotherapy. Methods: A one-group pre-post test design was used. The web-based video education program to prevent infection consisted of 5 subjects. The program was confirmed to be valid by an expert group of doctors and nurses. Convenience sampling of 23 subjects was performed to evaluate the effectiveness of the web-based video education program. Data were analyzed based on nonparametric statistics using SPSS 25.0 software. Results: Per the results of the study, knowledge and self-management behavior of infection prevention significantly improved after application of the program; however, there was no significant difference in self-efficacy. Conclusion: It was confirmed that the web-based video education program is effective to improve the knowledge and self-management behavior of infection prevention. However, as a preliminary study, this study did not have external validity. Therefore, it is necessary to verify the effectiveness of the program through randomized controlled trials and confirm the true infection prevention effect that was not considered in this research design.

• The KIPS Transactions:PartC
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• v.9C no.3
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• pp.431-438
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• 2002

SNMP is a simple, application layer protocol and that is sending and receiving the management information among network devices. It exchanges the management information by the PDUs that have the management information names and values. Until now, network management is so inconvenience because of console-based management by using SNMP. This paper shows the Web-based SNMP network management system that is using the designed private MIB and GUI. In this paper, we have proposed a virtual SNMP agent supporting scalability of network management. With the virtual agent, large-scale network can be managed simply by trap filtering and hierarchical management.

• Journal of the Korea Safety Management & Science
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• v.24 no.2
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• pp.77-85
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• 2022

This study tried to suggest a systematic improvement plan to prepare a civil safety insurance operation and management system by reviewing the operation and management status of civil safety insurance, which is operated and managed by each local government autonomously. In this study, the problems of the current civil safety insurance were analyzed by dividing them into the lack of systematic management of insurance items, overlapping coverage between insurance items, and deviations in compensation limits. As a systematic improvement plan, it was suggested to secure the systemic management of guarantee items, standardize compensation standards, prepare an integrated operation and management system, and provide financial support for local governments with poor financial independence. Since the problems and improvement plans for the civil safety insurance analyzed as described above are formed by exchanging and receiving a complex mutual influence, the institutional improvement plan for the operation and management system of the civil safety insurance is not only a specific part of the study, but also comprehensively current citizens. Based on the results derived from the analysis of safety insurance, it is concluded that alternatives must be found.

• Journal of Korean Academy of Nursing
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• v.29 no.5
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• pp.1113-1122
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• 1999

The author investigated pain experiences of 90 cancer patients and the adequacy of pain treatment they have received during their stay at a large medical center in T city between October 1994 and August 1995. Pain was assessed by the Shortened BPQ and results are summarized as follows: As for ratings of “worst pain” during the 24 hour period, 70% of the patients reported they had “severe” pain. As for ratings on “pain now,” 43% of the cancer patients reported “moderate to severe” pain. Over 46% of the patients reported a pain relief score of 0(not at all) or 1(somewhat) even after receiving pain medication. Adequacy of analgesic treatment was evaluated by comparing the patient's reported level of pain and the analgesic use, namely, the pain management index(PMI). The PMI indicated that 58% of the patients were undertreated for the pain control. In review of nurse's notes. systematic pain assessment was scarcely recorded, although pain documentation appeared in 70% of the notes; and the contents were mostly simple description. In conclusion, the results of patient's pain ratings, the PMI and poor pain documentation in the nurse's notes implied poor pain assessment and management.

• The Journal of Information Technology
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• v.7 no.4
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• pp.31-45
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• 2004

The Understanding of The New Paradigm of Logistics Management is very important competitive factors. Especially, Logistics Outsourcing are receiving increased attention as means of becomming competitive in globally challenging environment. So, This paper presents a in-depth analysis for New logistics management recently and suggest that third-party logistics and its implications for korea logistics strategy is most effectively new logistics management.

• Journal of Korean Society for Quality Management
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• v.27 no.3
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• pp.40-50
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• 1999

This paper empirically investigates the impact of winning a quality award by investigating the rate of return of a firm's stock in the stock market, and by analyzing the contribution and effectiveness to a firm's competitiveness. It also compares the effect of firms winning MB(Malcolm Baldrige) award with that of firms winning Korean quality awards on the stock market. A comparative method is used to analyze the change of award-winning firms'rate of return and then they are classified by time-series, cross-sectional, firm's size, award agency, and the year of receiving the award. The number of firms employed in this study is 74, however, multiple award-winning firms are included in the analysis, which increased the sample size to 118. Results indicate that Korean quality awards improve an award-winning firms'market value but not as much as the MB award did.

• 한국가시화정보학회:학술대회논문집
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• 2007.11a
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• pp.155-158
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• 2007

Water management for Polymer Electrolyte Fuel Cell (PEFC) has been receiving large attention as an important issue in practical applications. Proper water management is vital to achieve high performance and durability of PEFC. In this study, an X-ray imaging technique was employed to visualize the water distribution in a PEFC quantitatively. X-ray images of the PEFC components with and without water are distinguished clearly. From the visualized X-ray images, we could confirm the water distribution in the region between separator and gas diffusion layer (GDL). In addition, the contact angle of water in the micro-channels was also clearly visualized..

• The Journal of Information Technology
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• v.5 no.3
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• pp.35-50
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• 2002

The Understanding of the Electronic Commerce and Strategic Management of Logistics in EC are receiving increased attention as means of becoming competitive in globally challenging environment This paper presents a in-depth analysis for Strategic Management of Logistics and its implications for Korea Electronic Commerce Companies.