• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.6
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• pp.326-337
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• 2016

This study was conducted to identify the relationships between emotional intelligence, job satisfaction, and quality of nursing service for hospital nurses, and to serve as a basis for improvement of nursing service and nursing resources management. All data were collected and conducted with the cooperation of the nursing service department in a tertiary general hospital and two general hospitals located in G province. Questionnaires were completed by 195 nurses who consented to participation in the study from 7 to 28 April 2014. Data were analyzed using SPSS 18.0. A highly positive relationship (r=0.624, p<0.001, r=0.612, p<0.001) was observed between emotional intelligence and quality of nursing service in the superior general hospitals and the general hospitals. Based on this study, quality of nursing service could be improved by a positive relationship between emotional intelligence and job satisfaction in the superior general hospitals and general hospitals (r=0.430, p<0.001). Therefore, it is important to provide a good occupational environment and develop educational programs to enhance the emotional intelligence of nurses, and a positive measure focused on less experienced and young nurses to improve emotional intelligence.

• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 2003.05a
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• pp.425-430
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• 2003

일반적으로 원자력 관련 연구개발은 타 산업 및 사회에 미치는 파급효과가 크고, 참여 연구원 및 대중 안전에 대한 위험도가 높으며, 대규모의 투자비용이 요구되는 특성을 지니고 있다. 이러한 이유로 원자력 산업은 일찍이 품질보증 개념을 도입하여 원자력 시설의 안전한 이용을 도모하여 왔다. 최근에는 원자력 연구개발 분야에서도 연구결과의 신뢰도 확보 및 안전한 연구수행을 보장하기 위하여 품질보증 적용의 필요성이 강조되고 있다.(중략)

• Proceedings of the Korea Information Processing Society Conference
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• 2019.05a
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• pp.427-430
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• 2019

Object detection is applied in various field. Autonomous driving, surveillance, OCR(optical character recognition) and aerial image etc. We will look at the algorithms that are using to object detect. These algorithms are divided into two methods. The one is R-CNN algorithms [2], [5], [6] which based on region proposal. The other is YOLO [7] and SSD [8] which are one stage object detector based on regression/classification.

• Journal of the Korean Society for Railway
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• v.17 no.1
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• pp.28-34
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• 2014

In this paper, a concept design of a rail type ultra-high-speed train is proposed and its dynamic characteristics are analyzed. Instead of the existing solid axle, a new type bogie system and independently rotating wheels are applied in the proposed train. In order to analyze the dynamic characteristics, a multibody dynamic model of a vehicle is developed and the basic validity is verified by eigenvalue analysis. Also, it is shown that the critical speed is improved in comparison to that of existing high-speed train model HEMU-430X. Finally, through 7000R curved track driving analysis at a speed of 550 km/h, the lateral force of the wheels and the derailment quotient are estimated and the applicability of the new concept railway vehicle is confirmed.

• Journal of Biosystems Engineering
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• v.33 no.6
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• pp.430-437
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• 2008

Optical diffuse reflectance sensing in visible and near-infrared wavelength ranges is one approach to rapidly quantify soil properties for site-specific management. The objectives of this study were to investigate effects of preprocessing of reflectance data and determine the accuracy of the reflectance approach for estimating physical and chemical properties of selected Missouri and Illinois, USA surface soils encompassing a wide range of soil types and textures. Diffuse reflectance spectra of air-dried, sieved samples were obtained in the laboratory. Calibrations relating spectra to soil properties determined by standard methods were developed using partial least squares (PLS) regression. The best data preprocessing, consisting of absorbance transformation and mean centering, reduced estimation errors by up to 20% compared to raw reflectance data. Good estimates ($R^2=0.83$ to 0.92) were obtained using spectral data for soil texture fractions, organic matter, and CEC. Estimates of pH, P, and K were not good ($R^2$ < 0.7), and other approaches to estimating these soil chemical properties should be investigated. Overall, the ability of diffuse reflectance spectroscopy to accurately estimate multiple soil properties across a wide range of soils makes it a good candidate technology for providing at least a portion of the data needed in site-specific management of agriculture.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.7 no.3
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• pp.56-61
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• 2008

Recently, although demands for an internal antenna applicable to DVB-H handhold terminals are increased, there are many difficulties in designing the antenna due to the long wavelength of $430{\sim}640mm$ and the wide bandwidth of $470MHz{\sim}702MHz$. Since the proposed DVB-H band antenna can be analyzed as an SDA (Supported structure Defined Antenna), it is designed by combination of the folded monopole radiator which has a wideband characteristics and the wing-type element which can reduce the resonant frequency effectively. The DVB-H band antenna has VSWR of 4 and obtains a good gain from -5 to 2 dBi, when it is built-in the mobile handset.

• Journal of the Korean Ceramic Society
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• v.52 no.1
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• pp.19-22
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• 2015

The joining behavior of YSZ ceramics to the glasses used in the $9Al_2O_3-24ZrO_2-51SiO_2-16R_2O$ and $9Al_2O_3-24ZrO_2-51SiO_2-7La_2O_3-9R_2O$ (wt%) glass systems was investigated. The glass transition and softening temperatures were determined to be $430^{\circ}C$ and $760^{\circ}C$, respectively. The behavior of the contact angle was inversely proportional to an increase in the temperature. The Zr element in YSZ acted as a nucleation agent and contributed to the bonding behavior at the interface.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.17 no.3
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• pp.382-390
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• 2010

Purpose: This study was done to identify the relationship of perceived health, coping strategies, dependency, suicidal ideation and depression widowed elders, and to identify predictors of depression in this population. Method: The research design for this study was a descriptive survey design using a convenience sampling. Data collection was done using self-questionnaire with 162 elders from welfare centers for senior citizens located in 3 cities, Seoul, Gangneung and Seosan. Pearson correlation coefficients and stepwise multiple regression with the SPSS Win 12.0 Program were used to analyze the data. Results: Depression had significant negative correlations with perceived health (r=-.525, p<.001), and coping strategies (r=-.253, p=.005) and positive correlations with dependency (r=.430, p<.001), and suicidal ideation (r=.473, p<.001). The explained variance for depression was 47.5%. Of the variables, perceived health (${\beta}=-.237$, p=.003), suicidal ideation (${\beta}=.398$, p<.001) and dependency (${\beta}=.341$, p<.001) significantly predicted the degree of depression. Conclusion: Findings from this study provide a comprehensive understanding of depression and related factors for widowed elders in Korea. However, further study with a larger random sample and more a detailed research design is necessary.

• Wind and Structures
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• v.31 no.5
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• pp.419-430
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• 2020

Weibull distribution is a conspicuous distribution known for its accuracy and its usage for wind energy analysis. The two and three parameter Weibull distributions are adopted in this study to fit wind speed data. The daily mean wind speed data of Ennore, Tamil Nadu, India has been used to validate the procedure. The parameters are estimated using maximum likelihood method, least square method and moment method. Four statistical tests namely Root mean square error, R2 test, Kolmogorov-Smirnov test and Anderson-Darling test are employed to inspect the fitness of Weibull probability density functions. The value of shape factor, scale factor, wind speed and wind power are determined at a height of 100m using extrapolation of numerical equations. Also, the value of capacity factor is calculated mathematically. This study provides a way to evaluate feasible locations for wind energy assessment, which can be used at any windy site throughout the world.

• Carbon letters
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• v.10 no.4
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• pp.300-304
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• 2009

Thermal emissivity of nuclear graphite was measured with its oxidation degree. Commercial nuclear graphites (IG-110, PECA, IG-430, and NBG-18) have been used as samples. Concave on graphites surface increased as its oxidation degree increased, and R value (Id/Ig) of the graphites decreased as the oxidation degree increased. The thermal emissivity increased depending on the decrease of the R (Id/Ig) value through Raman spectroscopy analysis. It was determined that the thermal emissivity was influenced by the crystallinity of the nuclear graphite.