• Asian-Australasian Journal of Animal Sciences
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• v.16 no.5
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• pp.743-747
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• 2003

Applying simple random sampling in typical colony methods in the central area of habitat, 14 structural loci and 31 alleles in blood enzyme and other protein variations of Hu sheep population are examined. After collecting the same data of 11 loci about the 22 sheep colonies in China and other countries, it clusters the 23 sheep populations by fuzzy cluster analysis. The study proves that the phylogenetic relationship between Hu sheep population and Mongolia populations is relatively closed. This result obtained is shown to conform to the historical data.

• Proceedings of the Korea Water Resources Association Conference
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• 2020.06a
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• pp.194-194
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• 2020

본 연구에서는 수평반사도를 이용한 강우추정 관계식을 유효성 측면에서 재평가하였다. 이를 위해, 강우추정 관계식의 유도과정을 다시 살펴보고, 관측자료를 가지고 강우입자분포의 매개변수를 추정할 수 있도록 식의 형태를 변환하였다. 이 식을 이용하여 비슬산 레이더에서 관측된 반사도-강우강도의 쌍 자료에 대한 강우입자분포 매개변수를 추정하였다. 마지막으로 추정된 매개변수 대푯값을 다시 강우추정 관계식 유도에 사용하였다. 이렇게 결정된 강우추정 관계식이 관측된 수평반사도-강우강도 자료를 얼마나 잘 대표하는지를 평가하였으며, 그 결과, 레이더 반사도가 작아지면 작아질수록 강우추정 관계식의 이론적 배경과 관측자료의 괴리가 커지는 것으로 나타났다. 또한 강우입자분포를 지수분포로 가정한 형태의 강우추정 관계식이 모든 반사도 구간에서 유의하지 않을 수 있다는 것을 확인하였다.

• Korean Journal of Remote Sensing
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• v.32 no.2
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• pp.155-169
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• 2016

In this study, we developed a multi-sensor blending short-term rainfall forecasting technique using radar and satellite data during extreme rainfall occurrences in Busan and Gyeongnam region in August 2014. The Tropical Z-R relationship ($Z=32R^{1.65}$) has applied as a optimal radar Z-R relation, which is confirmed that the accuracy is improved during 20mm/h heavy rainfall. In addition, the multi-sensor blending technique has applied using radar and COMS (Communication, Ocean and Meteorological Satellite) data for quantitative precipitation estimation. The very-short-term rainfall forecasting performance was improved in 60 mm/h or more of the strong heavy rainfall events by multi-sensor blending. AWS (Automatic Weather System) and MAPLE data were used for verification of rainfall prediction accuracy. The results have ensured about 50% or more in accuracy of heavy rainfall prediction for 1-hour before rainfall prediction, which are correlations of 10-minute lead time have 0.80 to 0.53, and root mean square errors have 3.99 mm/h to 6.43 mm/h. Through this study, utilizing of multi-sensor blending techniques using radar and satellite data are possible to provide that would be more reliable very-short-term rainfall forecasting data. Further we need ongoing case studies and prediction and estimation of quantitative precipitation by multi-sensor blending is required as well as improving the satellite rainfall estimation algorithm.

• Journal of the Korea Convergence Society
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• v.8 no.9
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• pp.255-263
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• 2017

The purpose of this study is to examine the relationship between the Emotional Expressiveness, Smartphone Addiction, and Self Concept of college students and investigate whether the Self Concept mediate the relationship between the Emotional Expressiveness and Smartphone Addiction. The subjects of this study are 175 college students of 3 colleges located in M-si, J-si and G-si and data collecte for 21 days from June 1 through June 21, 2017. As Emotional Expressiveness increase, Self Concept increase (${\beta}=.286$, p<.01); as their Self Concept increase, their Smartphone Addiction decrease (${\beta}=-.269$, p<.05); and their Self Concept full mediate the relationship between their Emotional Expressiveness and Smartphone Addiction(Z=3.447, p<.01). To alleviate the Smartphone Addiction college students, their Emotional Expressiveness and their Self Concept need to be improved.

• The Journal of Korean Academic Society of Nursing Education
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• v.28 no.3
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• pp.248-258
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• 2022

Purpose: This study aimed to identify the mediating effect of professional self-concept on the relationship between nurse's image and career identity, and between satisfaction with the nursing major and the career identity of nursing students. Methods: This study utilized a descriptive methodology, and 205 nursing students attending three universities in Busan Metropolitan City participated in it. Data were collected from self-reported questionnaires between March 26 and April 30, 2022. Data were analyzed with descriptive statistics, an independent t-test, analysis of variance, Pearson's correlation coefficient, and simple and multiple regression using the IBM SPSS 22.0 program and Sobel test. Results: The mean score of career identity was 2.92±0.57 out of a possible 4. Career identity showed a significantly positive correlation with nurse's image (r=.32, p<.001), satisfaction with major (r=.47, p<.001), and professional self-concept (r=.32, p<.001). Additionally, professional self-concept had a partial mediating effect on the relationship between nurse's image (Z=2.44, p<.001), satisfaction with major (Z=2.35, p<.001), and career identity. Conclusion: The results of the study show professional self-concept had a mediating effect on the relationship between nurse's image, satisfaction with the nursing major, and career identity. Based on the study's results, career identity education programs for nursing students need to include nursing image, satisfaction with major, and professional self-concept.

• Journal of the Korean Society of Clothing and Textiles
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• v.41 no.6
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• pp.1010-1021
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• 2017

Adjustment of clothing pressure for compression wear is critical to the physiological and psychological satisfaction of the wearer; however, there are limited studies on the practical relationship among extensibility of materials, pattern reduction of compression wear and resultant clothing pressure. This study provides consumers and designers with information on clothing pressure using a screening extensibility test suggested by Ziegert and Keil (1988) even for the final products. As the first step, ten commercial products were collected and their size, extensibility and corresponding clothing pressure were analyzed. It was found that clothing pressure around the waist level could be predicted well from the information of Ziegert and Keil's (1988) % extensibility of the material (Z stretch %) and the actual application of Z stretch amount to the pattern reduction rate (applied % of Z stretch), with an $r^2$ of around 0.80, especially at the waist level. However, it was not simple for the case of clothing pressure around the back of the chest level due to the various design variation and the complexity of the anatomical structure around the trapezius.

• Journal of Korea Water Resources Association
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• v.38 no.12 s.161
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• pp.1039-1049
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• 2005

The objective of this study is to produce optimal radar-derived rainfall for hydrologic utilization. The ground clutter and beam blockage effects from Mt. Kwanak station (E.L 608m) are removed from radar reflectivities by POD analysis. The reflectivities are used to produce radar rainfall data in the form of rain rates (mm/h) by the application of the Marshall-Palmer reflectivity versus rainfall relationship. However, these radar-derived rainfall are underestimated in temporal and spatial scale compared with observed one, so it is necessary to hire a correction scheme based on the gauge-to-radar (G/R) statistical adjustment technique. The selected watershed for studying the real-time correction of radar-rainfall estimation is the Soyang dam site, which is located approximately 100km east of Kwanak radar station. The results indicate that adjusted radar rainfall with the gauge measurement have reasonal G/R ratio ranged on 0.95-1.32 and less uncertainty with that mean standard deviation of G/R ratio are decreased by $9-28\%$. Mean areal precipitation from adjusted radar rainfall are well agreed to the observed one on the Soyang River watershed. It is concluded that the real-time bias adjustment scheme is useful to estimate accurate basin-based radar rainfall for hydrologic application.

• Journal of Industrial Convergence
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• v.20 no.6
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• pp.55-63
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• 2022

The purpose of this study was to identify the effect of compassion competence on communication behavior of long-term care hospital nurses caring for patients with cognitive impairment and the mediating effect of resilience in the process. The data collection period was from September 27, 2021 to October 22, 2021, and the subjects were 131 long-term care hospital nurses in P city. The collected data were analyzed using the SPSS WIN 25.0 program, and descriptive statistics, pearson correlation coefficient, and multiple regression were performed. As a result of the study, first, it was found that there was a significant positive correlation between compassion competence and communication behavior(r=.625, p<.001), resilience and communication behavior(r=.535, p<.001). Second, resilience was verified as a partial mediating in the relationship between compassion competence and communication behavior(Z=2.012, p=.042). Therefore, in order to improve the communication behavior of nurses, it is suggested to develop and apply a program that can enhance compassion competence and resilience.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.7
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• pp.100-108
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• 2020

This descriptive research study investigated the mediating effect of self-leadership on the relationship between critical thinking and problem solving ability of nursing university students. The data were collected from nursing university students in G city. Korea, from 20 Sep. 2019 through 30 Sep. 2019. General characteristics, critical thinking, problem solving ability and self-leadership were surveyed using structured questionnaires. Statistical analysis was performed using descriptive statistics, ANOVA, and stepwise multiple regression analysis with SPSS/WIN 21.0. The mediating effect of self-leadership on the relationship between critical thinking and problem solving ability was tested using Baron & Kenny's 3-step hierarchical regression analysis. There were positive correlations between problem solving ability and critical thinking(r=.48, p<.001), between problem solving ability and self-leadership(r=.73, p<.001) and between critical thinking and self-leadership(r=.70, p<.001). In addition, self-leadership had a partial mediating effect(Z=6.64 p<.001) on the relationship between critical thinking and problem-solving ability. Therefore, strengthening of self-leadership is necessary to improve the problem-solving ability of nursing university students. Various strategies through regular education courses and extracurricular activities should be prepared for this purpose.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.4
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• pp.400-409
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• 2020

This descriptive research study investigated the mediating effect of positive psychological capital (PPC) on the relationship between emotional labor (EL) and job satisfaction (JS) of clinical nurses. The data was collected from 274 nurses working for two hospitals in the D city, Korea, from 7 Sep. 2016 through 23 Sep. 2016. General characteristics, EL, JS, and PPC were surveyed using structured questionnaires. Statistical analysis was performed using descriptive statistics, ANOVA, and stepwise multiple regression analysis with SPSS/WIN 21.0. The mediating effect of PPC on the relationship between EL and JS was tested using Baron & Kenny's 3-step hierarchical regression analysis. There were negative correlations between EL and JS (r=-.36, p<.001) and EL and PPC (r=-.25, p<.001) and a positive correlation between JS and PPC (r=.47, p<.001). In addition, the PPC, had a partial mediating effect (z=-3.44, p=.001) on the relationship between EL and JS. It is proposed, based on the results, to develop an organized intervention program that enhances job satisfaction by reducing emotional labor and strengthening positive psychological capital in clinical nurses.