• Tunnel and Underground Space
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• v.25 no.1
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• pp.24-36
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• 2015

The Geochang granite widely used in construction works is one of the most popular dimension stones in Korea. In order to evaluate the physical properties of rock, a lot of laboratory tests for the Geochang granite were conducted to find unit weight, absorption ratio, P wave velocity, S wave velocity, uniaxial compressive strength, Young's modulus, Poisson's ratio, tensile strength, cohesion, friction angle and point load strength index. The uniaxial compressive strength of the Geochang granite was 19.5 times tensile strength and also 8.6 times cohesion, besides P wave velocity was 1.5 times S wave velocity. Correlation analyses were also conducted to find the correlation among 11 different physical properties, where the uniaxial compressive strength showed Pearson correlation coefficient of more than 0.8 with Poisson's ratio, point load strength index and Young's modulus, respectively. Regression analyses were finally conducted by means of both linear and multiple analysis and the brief results including coefficient of determination of more than 0.7 were presented.

• Journal of Digital Convergence
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• v.13 no.9
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• pp.277-286
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• 2015

The purpose of this study is to analyze the effects of creativity instruction activities on academic motivation and career maturity of university students and the relationship between these factors. The subjects of this study were university students who took creativity liberal arts based on NFTM-TRIZ creativity education model for a term. The research scales were the self-efficacy scale and failure tolerance scale of academic motivation tests and the Career Maturity Inventory Attitude Scale. The results of this study were as follows : First, creativity instruction activities had a positive influence on academic motivation and career maturity. Especially the effects on self control efficacy, task preference level, career decisiveness and compromise showed significantly(p<.01). Secondly, academic motivation showed positive relationship with career maturity(p<.05).

• Journal of Navigation and Port Research
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• v.41 no.6
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• pp.381-388
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• 2017

Recently, renewed attention for technological applications within the maritime industry has taken place, particularly regarding unmanned vessels. There has been a lot of interest about the number of projects aiming at testing the operational feasibility of unmanned vessels, particularly in relation to technological, safety and security issues. Nevertheless, no studies have investigated this issue from the point of view of seafarers towards unmanned vessels; this paper aims at filling this gap. Data has been collected through a survey questionnaire. A Pearson correlational coefficient has been used to test the correlation between some of the variables. The results show that more than half of the respondents indicated that unmanned vessels do not contribute to an increase in accidents at sea. In addition, seafarers believe unmanned vessels will not be operational in the near future, with most of the respondents indicating a 10-20 year time frame. Thirdly, most of the respondents(both officers and ratings).

• Journal of Convergence for Information Technology
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• v.9 no.1
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• pp.1-11
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• 2019

The study was to investigation the correlation between critical thinking and problem-solving abilities of 320 dental hygiene students enrolled in H university, J region from June 1 to August 30, 2018. The data was analyzed by ANOVA, pearson's correlation and multiple regression using SPSS 18.0 program. The correlation between critical score 3.36 while problem solving ability score 3.41. The correlation between critical thinking problem-solving abilities of the subjects was statistically significant. The significant variables included problem-solving(${\beta}=0.107$)(p<0.05), academic performance(${\beta}=-0.081$)(p<0.05) with an explanatory power of 52.2%. It is necessary to develop a curriculum and learning method in improvement for critical thinking and problem-solving abilities change in educational environment of dental hygiene students.

• Journal of the Korea Society of Computer and Information
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• v.25 no.12
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• pp.253-259
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• 2020

In this paper, we propose to confirm the perceptions of vocational rehabilitation of the mentally disabled by mental health service providers. The survey was conducted using a questionnaire consisting of vocational ability for the mentally disabled, family support, worker competence, and worker needs, targeting 132 workers at the mental health welfare center and mental rehabilitation facility, which are mental health service institutions in A Metropolitan City. The collected data were analyzed using the technical knowledge, t-test, ANOVA, Scheff? test, Pearson's correlation coefficient, and multiple regression using the SPSS 21.0 program. In the end, the workers' desire for vocational rehabilitation for the mentally disabled of workers in mental health service institutions was higher in mental rehabilitation facilities than in mental health welfare centers, and the competence of workers had a significant effect on the vocational skills and family support of the mentally disabled people. Therefore, it will be possible to ultimately promote vocational rehabilitation for the mentally disabled by strengthening the capacity for vocational rehabilitation for the mentally handicapped of mental health service providers in the future.

• Journal of Convergence for Information Technology
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• v.11 no.2
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• pp.73-81
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• 2021

The purpose of this study was to examine relationships among health empowerment and health behavior compliance on quality of life and identify the factors that influence on quality of life in patients with coronary artery disease. Participants in this study were 180 patients with coronary artery disease in the Intervention of Cardiology of a general hospital in S city. Data were analyzed using descriptive statistics, t-test, one-way ANOVA, Scheffe test, Pearson correlation coefficient, and multiple regression using the SPSS Win. 22.0 program. The result of the multiple regression indicates the health behavior compliance, gender, health empowerment and educational level predict 23.4%(F=5.17, p=.024) in quality of life. Therefore, it is necessary to develop programs a health behavior compliance and health empowerment use specific strategies to improve quality of life for patients with coronary artery disease.

• The Journal of the Convergence on Culture Technology
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• v.8 no.2
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• pp.15-22
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• 2022

The purpose of this study was to investigate the effect of perceived stress, anxiety, depression of suicide ideation in nursing students. Data were collected from 224 nursing students in B city and analyzed by t-test, ANOVA, Pearson correlation coefficient, and multiple regression using SPSS/WIN 22.0. The degree of suicide ideation in nursing students was 3.33±5.28. There were significant differences in suicide ideation with number of friend(F=4.114, p=.007). There was negative correlation between suicide ideation and perceived stress(r=.404, p<.001), anxiety(r=.480, p<.001), depression(r=.580, p<.001). The factors affecting suicide ideation of the study subjects were anxiety(β=.158, p=.040), depression(β=.463, p<.001), number of friend(β=.109, p=.044), with an explanatory power of 36.8%. Through the result of this study, it is necessary to development various education and program that can control the suicide ideation of nursing students.

• Journal of Industrial Convergence
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• v.20 no.6
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• pp.135-140
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• 2022

In the domestic stock market, the capital market opened in January 1992, and the proportion of foreign capital has steadily increased, accounting for 30% of the domestic market in Overall stock market trend infers that the domestic stock market is more influenced by foreign issues than domestic issues. The trading trend of foreign capital displays a similar flow to exchange rate fluctuations,; thus, preparing an investment strategy by using the Pearson analyzing method the effect of exchange rates of foreign capital trading, fluctuations in exchange rates, and predicting one of the macroeconomic indicators will yield high returns in the stock market. Therefore, this research was conducted to help investment by predicting foreign variables comparing and analyzing exchange rates and foreign capital trading patterns, and predicting appropriate time for buying and selling.

• The Journal of the Convergence on Culture Technology
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• v.7 no.4
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• pp.237-242
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• 2021

The purpose of this study was to investigate the effect of patient safety competencies and ethical climate in long-term care hospital nurses and to provide the basic data. Data were collected from 120 in D city and analyzed by t-test, ANOVA, Pearson correlation coefficient, and multiple regression using SPSS/WIN 25.0. The degree of Patient Safety Competencies in long-term care hospital nurses was 3.45± .41. There were not significant differences in Patient Safety. There was positive correlation between patient safety competencies and peer(r=.123, p<.001), manager(r=.241, p<.001), and hospital(r=.241, p<.001). The factors affecting the patient safety competencies confidence of the study subjects were peer(β=.23, p=.003), manager(β=.55, p=.004), hospital(β=.43, p=.031), with an explanatory power of 33.5%. Through this research requires the fellow study to determine the factors affecting patient safety competencies confidence of long-term care hospital nurses.

• The Journal of the Convergence on Culture Technology
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• v.8 no.5
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• pp.251-258
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• 2022

The purpose of this study was to investigate of resilience on nursing students in COVID-19 pandemic situation. Data were collected from 320 nursing students in B city and analyzed by t-test, ANOVA, Pearson correlation coefficient, and multiple regression using SPSS/WIN 22.0. The degree of resilience in nursing students was 3.78±0.61. There were significant differences in college life adaptation with department (F=9.932, p<.001), number of friend (F=5.681, p<.001), close professor (t=3.739, p<.001), There was positive correlation between resilience and grit (r=.469, p<.001), nursing professionalism (r=.614, p<.001), nurses' image (r=.552, p<.001). The factors affecting resilience of the study subjects were grit (β=.321, p<.001), nursing professionalism (β=.385, p<.001), nurses' image (β=.165, p=.022), with an explanatory power of 47.3%. Through the results of this study, it was confirmed that it is necessary to improve grit, nursing professionalism, and nurses' image in order to improve the resilience of nursing students in the COVID-19 pandemic.