• 한국농공학회논문집
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• 제49권4호
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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.

• 디지털융복합연구
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• 제15권9호
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• pp.321-333
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• 2017

본 연구의 목적은 만성신부전환자의 혈액투석 후 삶의 재구성 경험을 이해하고, 그들의 생생한 경험의 의미를 밝히기 위함이며, 연구 방법은 질적연구 방법 중 Colaizzi의 현상학적 연구방법을 이용하였다. 연구대상은 만성신부전증을 진단받고 혈액투석 중인 8명의 환자를 대상으로 개별 심층면담을 통해 자료수집을 진행하였다. 연구결과 도출된 5개의 범주는 '예기치 못한 어려움의 시작', '혈액투석이 가져온 생존의 버거움', '재기의 원동력', '내일을 살기 위한 오늘의 선택과 집중', '정성껏 엮어가야만 하는 일상'으로 나타났다. 본 연구결과를 통해 의료인들은 만성신부전환자가 혈액투석을 하면서 경험하는 신체적, 정신적 고통과 변화된 삶의 방식에 적응하기 위하여 그들이 부단히 노력하는 방법을 심층적으로 이해하는데 도움이 될 것이다. 또한 향후 혈액투석 환자의 건강관리를 위한 효율적인 간호중재를 개발하는 데 기초자료가 될 수 있을 것이라 생각된다.

• 가정∙방문간호학회지
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• 제27권3호
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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.

• 정보처리학회논문지C
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• 제9C권3호
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• pp.431-438
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• 2002

SNMP는 네트워크의 장비들 사이에서 관리 정보를 주고받는 응용 계층 프로토콜로 동작 방법은 매우 간단하다. SNMP는 PDU를 통해서 관리 정보의 이름과 값을 서로 교환한다. 지금까지 네트워크 관리는 SNMP를 이용해 콘솔 기반으로 관리되었기 때문에 매우 불편했다. 이 논문에서는 새롭게 디자인된 사설 MIB와 GUI를 통한 웹 기반 SNMP 망 관리 시스템을 구현한다. 또한 확장성 문제를 해결하기 위해 가상 에이전트를 제안하고 구현한다. 제안된 가상 에이전트를 사용함으로써, 무분별한 트랩 발생에 대한 필터링과 계층적인 망 관리가 가능하게 된다.

• 대한안전경영과학회지
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• 제24권2호
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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.

• 대한간호학회지
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• 제29권5호
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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.

• 정보학연구
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• 제7권4호
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• pp.31-45
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• 2004

WTO출범과 전자상거래의 출현은 국내외 물류산업의 환경변화에 가장 큰 영향을 제공하고 있으며 국내의 경우 물류중심지 전략을 국가발전과제로 활용하면서 물류관리의 신패러다임의 도입과 활용방안이 적극 활용되고 있다. 특히 신패러다임으로 전개되는 물류관리는 기업에게 있어서 소비자의 욕구를 만족할 수 있는 제품을 생산제조하여 이를 효과적으로 공급할 수 있는 능력으로 기업으로 하여금 물류아웃소싱의 적극적 활용을 촉진하고 있다. 이에 본 연구에서는 물류관리의 신패러다임인 물류아웃소싱이 경쟁력 요인임을 강조하고 국내외 물류아웃소싱을 개선하기 위한 활용전략과 과제를 제안하였다.

• 품질경영학회지
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• 제27권3호
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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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• 한국가시화정보학회 2007년도 추계학술대회
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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..

• 정보학연구
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• 제5권3호
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• pp.35-50
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• 2002

최근 경제환경이 세계화되고 정보통신기술이 급속히 성장과 발전을 이룩하면서 지금까지 제한적인 범위에서만 이루어져왔던 전자상거래는 본격적인 성장의 기반을 조성하고 있으며 세계시장변화의 흐름을 지속적으로 주도할 전망이다. 반면 시간의 가치가 중요시되는 인터넷 기반의 전자상거래가 활성화 됨에 따라서 물류문제의 해결과 물류서비스의 차별화 여부가 전자상거래를 수행하는 기업의 수익성을 비롯하여 경쟁력 확보에 직접적인 연계성을 지님에 따라 그 중요성이 증가하고 있다. 이에 전자상거래 환경하에서 기업의 전략적 물류관리 활동은 기업의 경쟁력을 유지할 수 있는 중요한 구조적 특성을 지니고 있는 것이다.