• 보건의료산업학회지
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• 제7권4호
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• pp.131-141
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• 2013

The purpose of this study was to investigate the long-term care hospital nurse's recognition and performance level of hospital infection control. The subjects of the study were 147 long-term care hospital nurses. The period of data collection was from April 1 to 30, 2013. The data were analyzed by SPSS 19.0 program. The result are as followed; First, the total average scores of the recognition and performance by long-term care hospital nurses of hospital infection control were $4.64{\pm}0.32$ and $4.21{\pm}0.23$. Second, recognition of hospital infection control was significantly different according to position and hospital infection control education experience. Performance of hospital infection control was significantly different according to education level and hospital infection control education experience. Third, there was a positive correlation between the degree of recognition and performance of hospital infection control. Therefore, it is suggested to apply the concrete education program to enhance the recognition in order to improve the performance of hospital infection control of the Long-term hospital nurses.

• 가정∙방문간호학회지
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• 제20권1호
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• pp.16-23
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• 2013

Purpose: The purpose of this study was to analyze the relationship between cognitive function, self-esteem, and depression among patients in long-term care hospitals. Methods: The study participants were 159 patients from 2 long-term care hospitals in Kyungki province. Data were collected from January 2 to February 5, 2013, by conducting across-sectional descriptive survey using a structured questionnaire administered by researchers. Results: Cognitive function and depression were significantly different according to age, education level and marriage. Self-esteem was significantly different according to education level and economic status. Self-esteem was significantly positively correlated with cognitive function, which in contrast showed a significant negative correlation with depression. Among our subjects, those older than 80 years showed low cognitive function and those with low educational attainment showed high scores of depression. Conclusion: We conclude that, elderly patients in long-term care hospitals who have low educational attainment should be carefully monitored, especially by nurses, for cognitive function and depression. In addition, nurses should have constant communication with their patients. Moreover, long-term care hospitals should apply early detection of and a management system for cognitive impairment and depression among their patients.

• 대한물리의학회지
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• 제8권4호
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• pp.573-582
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• 2013

PURPOSE: The purpose of this study was to establish the reliability and validity of the Wheelchair User's Shoulder Pain Index (WUSPI), which was translated into Korean for long-term wheelchair users. This index measured 15 functional activities, including transfer, self-care, wheelchair mobility and general activities. METHODS: To assess test-retest reliability, 23 long-term wheelchair users completed this self-administered index twice within the same day. Reliability was determined by the intraclass correlation coefficient (ICC), and Cronbach's alpha was used to measure internal consistency. To examine concurrent validity, 21 long-term wheelchair users completed the questionnaire, and we examined the correlation between the index score and the shoulder range of motion measurements. RESULT: The results showed that the intraclass correlation for test-retest reliability of the total index score ranging from .88 to .99 was good to excellent. Additionally, Cronbach's alpha was .96. The internal consistency indicated excellent. Concurrent validity showed negative correlations of total index score to range of motion measurements of shoulder flexion (rho=-.58), extension (rho=-.09), abduction (rho=-.59), external rotation (rho=-.07) and internal rotation (rho=-.3), suggesting a relationship of total index score to loss of shoulder range of motion. CONCLUSION: The Korean WUSPI shows not only high reliability and internal consistency, but also concurrent validity with loss of shoulder flexion and abduction.

• 한국산학기술학회논문지
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• 제21권3호
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• pp.353-359
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• 2020

본 연구는 감정노동, 회복 탄력성이 요양병원 간호사의 소진에 미치는 영향을 파악하기 위해 시도된 서술적 조사연구이다. 자료수집 기간은 2019년 5월 23일에서 6월 5일까지이며 D시,B시,G도 소재의 요양병원에 재직 중인 간호사 195명을 본 연구대상으로 하였다. 자료의 분석을 위하여 SPSS 21.0 통계 프로그램의 평균과 표준편차, Pearson correlation coefficients, t-test, ANOVA 및 Multiple regression을 이용하였다. 분석 결과 감정노동과 소진(r=.476, p<.005), 회복 탄력성(r=-.416, p< .005)은 유의한 상관관계를 보였다. 회귀분석 결과 감정노동(β= .37, p<.001)과 회복 탄력성(β= .17, p< .048)은 요양병원 간호사 소진에 통계적으로 유의한 영향을 미치는 변수로 파악되었으며, 이들 변인은 요양병원 간호사의 소진에 25.5%의 설명력을 가지고 있었다(F=23.51,p<.001). 이에 본 연구결과를 기반으로 감정노동을 낮추고, 회복 탄력성을 강화할 수 있는 프로그램을 요양병원 간호사 직무교육에서 개발하고 적용 및 활용으로 요양병원 환자를 이해하고, 질적인 간호서비스를 제공할 수 있는 노력이 필요하다. 또한, 본 연구결과를 기반으로 요양병원 간호사의 소진에 영향을 미치는 다양한 요인을 파악하고 이를 기반으로 한 프로그램 개발이 필요하다.

• 한국태양에너지학회 논문집
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• 제33권5호
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• pp.1-8
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• 2013

Wind resource data of short-term period has to be corrected a long-term period by using MCP method that Is a statistical method to predict the long-term wind resource at target site data with a reference site data. Because the field measurement for wind assessment is limited to a short period by various constraints. In this study, 2 different MCP methods such as Linear regression and Matrix method were chosen to compare the predictive accuracy between the methods. Finally long-term wind speed, wind power density and capacity factor at the target site for 20 years were estimated for the variability of wind and wind energy. As a result, for 20 years annual average wind speed, Yellow sea off shore wind farm was estimated to have 4.29% for coefficient of variation, CV, and -9.57%~9.53% for range of variation, RV. It was predicted that the annual wind speed at Yellow sea offshore wind farm varied within ${\pm}10%$.

• 한국환경과학회지
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• 제17권6호
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• pp.591-599
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• 2008

In order to support the development of wind farms in Jejudo, a wind resource database for Jejudo has been established using a meteor-statistical analysis of KIER(Korea Institute of Energy Research) met-mast measurements and KMA(Korea Meteorological Administration) weather data. The analysis included wind statistics, tower shading, an exposure category classification using satellite images, the effect of atmospheric stability on the wind profile exponent, and a correlation matrix of wind speed to gain an understanding of the meteorological correlation between long-term weather observation stations and short-term met-mast measurements. The wind resource database for Jejudo, is to be provided as an add-on to Google $Earth^{TM}$, which is expected to be utilized as a guideline for the selection of an appropriate reference site for long-term correction in the next wind farm development project.

• Smart Structures and Systems
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• 제20권2호
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• pp.197-205
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• 2017

The dynamic performance of railway bridges under high-speed trains draws the attention of bridge engineers. The vibration issue for long-span bridges under high-speed trains is still not well understood due to lack of validations through structural health monitoring (SHM) data. This paper investigates the correlation between bridge acceleration and train speed based on structural dynamics theory and SHM system from three foci. Firstly, the calculated formula of acceleration response under a series of moving load is deduced for the situation that train length is near the length of the bridge span, the correlation between train speed and acceleration amplitude is analyzed. Secondly, the correlation scatterplots of the speed-acceleration is presented and discussed based on the transverse and vertical acceleration response data of Dashengguan Yangtze River Bridge SHM system. Thirdly, the warning indexes of the bridge performance for correlation scatterplots of speed-acceleration are established. The main conclusions are: (1) The resonance between trains and the bridge is unlikely to happen for long-span bridge, but a multimodal correlation curve between train speed and acceleration amplitude exists after the resonance speed; (2) Based on SHM data, multimodal correlation scatterplots of speed-acceleration exist and they have similar trends with the calculated formula; (3) An envelope line of polylines can be used as early warning indicators of the changes of bridge performance due to the changes of slope of envelope line and peak speed of amplitude. This work also gives several suggestions which lay a foundation for the better design, maintenance and long-term monitoring of a long-span high-speed bridge.

• 환경영향평가
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• 제24권2호
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• pp.111-118
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• 2015

본 연구는 서울의 오존 장기변동 특성을 대표하는 대표측정소를 선정하기 위한 통계적인 기법을 구축하기 위하여 수행되었다. 2002년부터 2011년까지 10년간의 오존 시간 농도자료를 분석에 적용하였다. KZ 필터, 상관관계 매트릭스, 군집분석, 공간 분석 방법을 적용하여 대표측정소를 선정하였다. 상관관계 분석 결과 서울 신정동, 사당동, 번동 측정소의 오존 장기간 변동 추세가 높은 상관관계를 나타내었다. 군집분석에서도 세 측정소가 같은 군집으로 분석되었다. 공간분석 결과, 세 측정소가 다른 측정소와 공간적인 상관관계가 높게 나타났다. 이러한 분석결과와 상관계수값을 고려하였을 때, 신정동 측정소가 서울의 오존 장기변동 추세를 대표하는 측정소로 적합하였다. 본 연구 결과는 오존 이외의 대기오염물질의 분석을 위한 대표측정소 선정에도 적용될 수 있으며, 국가대기측정망의 공간적인 분포의 적절성을 평가하기 위해서도 사용될 수 있을 것으로 판단된다.

• Corrosion Science and Technology
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• 제13권6호
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• pp.214-223
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• 2014

Interest in the durability assessment and structural performance has increased according to an increase of concrete structures in salt damage environment recent years. Reliable way ensuring the most accelerated corrosion test is a method of performing the rebar corrosion monitoring as exposed directly to the marine test site exposure. However, long-term exposure test has a disadvantage because of a long period of time. Therefore, many studies on reinforced concrete in salt damage environments have been developed as alternatives to replace this. However, accelerated corrosion test is appropriate to evaluate the critical chlorine concentration in the short term, but only accelerated test method, is not easy to get correct answer. Accuracy of correlation acceleration test depends on the period of the degree of exposure environments. Therefore, in this study, depending on the concrete mix material, by the test was performed on the basis of the composite degradation of the salt damage, and investigate the difference of corrosion initiation time of the rebar, and indoor corrosion time of the structure, of the marine environment of the actual environments were inuestigated. The correlation coefficient was derived in the experiment. Long-term exposure test was actually conducted in consideration of the exposure conditions submerged zone, splash zone and tidal zone. The accelerated corrosion tests were carried out by immersion conditions, and by the combined deterioration due to the carbonation and accelerated corrosion due to wet and dry condition.

• 한국산학기술학회논문지
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• 제16권6호
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• pp.4048-4055
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• 2015

본 연구는 요양병원 간호사의 생명의료윤리 의식정도를 파악하는 것이다. 본 연구는 광주와 전남 지역 요양병원에 근무하고 요양병원에서 근무한지 5개월 이상 된 간호사 183명을 대상으로 설문지를 사용하였으며, 수집된 자료는 SPSS 21.0 프로그램을 이용하여, 기술통계, Independent t-test와 one-way ANOVA, 사후검증은 $scheff{\acute{e}}$ test, 상관관계분석(Pearson's Correlation Analysis)으로 분석하였다. 본 연구에서 대상자의 생명의료윤리 의식에 대한 대상자들의 의식은 중간보다 높은 수준이었다. 생명의료윤리 하위영역별 의식 중 태아생명권의 의식과 임신중절의 의식이 가장 유의한 양적 상관관계가 있었다. 요양병원 간호사의 생명의료윤리의식 정도는 높았으나, 가치관이 정립되지 않아 임상상황에서 의사결정이 혼돈된다. 따라서 기관의 신규간호사나 간호대학생에게 생명의료윤리 교육을 통해 윤리적 가치관을 확립하여 환자의 안녕에 기여해야 할 것이다.