• 대한전기학회:학술대회논문집
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• 대한전기학회 1992년도 하계학술대회 논문집 B
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• pp.857-859
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• 1992

The molten carbonate fuel cell is a new method for generating power which uses coal gasification gas and reformed liquid natural gas for fuel at very high efficiency and with minimal pollution. The purpose of this research is to investigate principle, properties and research status of internal reforming molten carbonate fuel cell.

• 한국정보관리학회:학술대회논문집
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• 한국정보관리학회 2006년도 제13회 학술대회 논문집
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• pp.93-100
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• 2006

The purpose of this study is to improve mobile service in academic libraries that can support the real-time need of users. This paper consists of the literature research, present status research, case studies and questionnaire survey. Based on the literature review, present status research, case studies and survey, the managerial plans to expand mobile service are suggested as four aspects - development of service types, expansion of the facilities and collections, marketing and evaluation.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2008년도 하계종합학술대회
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• pp.127-128
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• 2008

Research and development status of Dog-Horse robot is presented based on the critical technology issues which generates severe problems or hard trade-offs to meet the general requirement of system and new technologies. This paper covers from architectural problems to specific technology to overcome the operational requirement. Technology development based on operation requirement derived new research challenges as well as advanced development for system adaptation.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 1997년도 Proceedings of KIN-CIN Joint Symposium 97 on Safety of Shipping and History of Maritime Communication between Korea and China around 9th Century
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• pp.71-86
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• 1997

DGNSS(Differential GNSS) may be the most feasible positioning system to users who need the precise positioning in the future. A number of countries have carried out research and test about DGNSS based on the marine radiobeacon for improving positioning accuracy. This paper describes the status of DGNSS in the world and the system charactersitics. In special , DGNSS network of Korea to be constructed is discussed. And then DGNSS, which are operating for test, is analyzed by an experimental approach.

• 지역사회간호학회지
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• 제21권4호
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• pp.448-457
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• 2010

Purpose: This study attempted to identify differences in elders' health status, quality of life, and satisfaction with customized home visiting health service depending on connection to volunteerism. Methods: A total of 400 subjects participated in this research. Data were collected from May to August of 2009 and the measurement tool used for this study was the house visiting health service recording sheet recommended by the Ministry of Health. Results: According to the results of this research on elders' health status in customized home visiting health service depending on connection to volunteerism, elders' connected to volunteerism positively showed a high level in functional health status areas such as daily life performance ability, instrumental daily life performance ability and Joint exercise capacity, and in the quality of life area. Conclusion: The results of this study can be utilized as complementary information when resources and networks are used for the effective management of house visiting health service subjects.

• 기본간호학회지
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• 제19권4호
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• pp.483-492
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• 2012

Purpose: This study was done to identify the relationship of perceived health status, leisure satisfaction, loneliness and life satisfaction and to identify predictors of life satisfaction for elders. Method: The research design for this study was a descriptive survey design using a convenience sample. Data collection was done using self-report questionnaires with 297 elders from 6 community health practitioner posts. Data were analyzed using ANOVA, t-test, Pearson correlation coefficients and hierarchical multiple regression with the SPSS Win 18.0 Program. Results: Life satisfaction had significant negative correlations with age (r=-.31, p<.001) and loneliness (r=-.73, p<.001), and positive correlations with monthly spending money (r=.44, p<.001), health status (r=.63, p<.001), and leisure satisfaction (r=.62, p<.001). The explained variance for life satisfaction was 72%. Variables of monthly spending money, health status, leisure satisfaction, and loneliness significantly predicted the degree on life satisfaction of these elders. Conclusion: Findings of this study provide a comprehensive understanding of life satisfaction and related factors for elders in Korea. However, further studies with a larger random sample and more detailed research design are necessary.

• Animal cells and systems
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• 제11권2호
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• pp.161-164
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• 2007

Oxidative stress is prerequisite for the development of atherosclerosis. Apart from the traditional risk factors that contribute to this devastating condition, in the past few decades, much attention has been focused on plasma total homocysteine mainly because of its strong association with coronary artery disease. It has been suggested that homocysteine induces oxidative stress and hence the present work was undertaken to assess the total homocysteine status and plasma total antioxidant capacity in the acute myocardial infarction (AMI) patients among Tamil population. The study subjects included only the Tamil population. Blood samples were collected from 100 AMI patients and 100 controls. Plasma was separated and the total antioxidant status was assessed as a measure of ferric reducing power of antioxidants using spectrophotometric method. Plasma total homocysteine concentrations were assessed by automated chemiluminescence method. While Total antioxidant status was significantly decreased, the plasma homocysteine concentrations were elevated in AMI patients compared to the controls. However, there was no correlation between the homocysteine levels and total antioxidant status. The findings of this study may have therapeutic implications, including food sources rich in antioxidants for all AMI patients to minimize the effect of free radicals formed during oxidative stress among Tamil population.

• 한국응급구조학회지
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• 제5권1호
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• pp.23-35
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• 2001

This study was done to examine the relationship between stress and coping methods of 86 emergency medical technicians with the 1st or 2nd grade qualifications who serve at 36 fire stations in Gwangju and Jeonnam region from Aug. 1 to Aug. 31, 2001. Data collection was done by questionnaire. The research instruments used the stress measure tool developed by Cho Hee et al.(1999) and revised and complemented by the researcher to measure firemen's stress, and health instrument revised by Suh Mi Hye et al(1993). Data were analyzed by t-test, ANOVA, and Pearson's correlation using SPSS. The results of this study were as follows : 1. The mean score of perceived stress was 3.4. The mean score of coping methods was 2.11. 2. The levels of stress according to the general characteristics of subjects were significantly different at marital status(t=7.054, p=.009) and in relation with organization(t=3.989, p=.049). 3. The relationship between levels of stress and health status was significantly correlated(r=.325, p=.000), and so the hypothesis of this research, "the less levels of stress, the better health status is." was supported. 4. The relationship between stress and health status was significantly different at crisis status(r=.393, p=.000), relation with organization(r=.348, p=.001), the characteristics of subjects(r=.387, p=.000), special knowledge and technology(r=.337, p=.001), and the roll complication as a professional(r=.343, p=.001).

• 한국경영과학회지
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• 제41권1호
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• pp.55-69
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• 2016

In response to drastic environmental changes, companies have been continuously rebalancing their resources and capabilities to sustain their competitive status or to survive difficult times. The aim of this study is to analyze the effect of sudden environmental changes on the competitive status of a firm and to identify the internal factors that differentiate sustainer and non-sustainer groups. To achieve this goal, we selected 85 representative IT and non-IT companies from the S&P 500 companies and investigated them with respect to the change in their five-year competitive status since the 2008 global financial crisis. As a concrete performance measure, the concept of perceived competitive status (PCS) was introduced, and four distinct PCS categories were identified by using the stock price changes during the selected period. The four distinct PCS categories are "sustaining," "drifting," "deep sunken," and "bouncing back." Discriminant analysis was performed on these four distinct PCS categories. The empirical study conducted showed that revenue and cost efficiency are the most discriminating factors, especially in the economic recovery period. In particular, stronger financial liquidity was observed in high-performing "bouncing back" companies than in the other category companies.

• 한국안전학회지
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• 제29권3호
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• pp.129-135
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• 2014

The number of abnormal operation procedures (AOPs) for mitigating a plant abnormal status amounts to about one hundreds for the most of 1000MWe optimized power plant (OPR1000) and it is expected that the number of AOPs would be increased to cope with an abnormal status occurred newly. However, it is not well organized for operators to select a proper AOP from alarms occurred in main control room (MCR) during a plant abnormal status. It may be a burden to operators since the selection of AOP to respond an abnormal status is authorized by operators. When multiple alarms occur in MCR, it would take more time to respond them than a single alarm. To reduce the efforts, various MCR operation support systems have been developed. The purpose of this study was to develop a multi-alarm pattern card to select an appropriate AOP effectively when multiple alarms occurs in a single upper layout (UL) of MCR. It can be applied for an operation support tool as well as an education tool.