• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.2
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• pp.668-675
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• 2018

The continuing urbanization and industrialization around the world has required a large amount of power. Therefore, construction of major infrastructure, including nuclear power plants in coastal areas, has accelerated. In addition, the intensity of natural disasters is increasing due to global warming and abnormal climate phenomena. Natural disasters are difficult to predict in terms of occurrence, location, and scale, resulting in human casualties and property damage. For these reasons, the disaster scale and damage estimation in coastal areas have become important issues. The present study examined the predictable weather data and regional ratings and developed estimating functions for wind wave damage based on the disaster statistics in the southern areas. The results of the present study are expected to help disaster management in advance of the wind wave damage. The NRMSE was used for verification. The accuracy of the NRMSE results ranged from 1.61% to 21.73%.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.10
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• pp.6688-6697
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• 2015

This study aimed to investigate differences in self-esteem, self-efficacy, and resilience according to the general characteristics and properties of volunteer activity in Dental Hygiene students, and to investigate correlations and the factors affecting these. After explaining the aims of the study to participants and receiving their consent during January 2015, the participants were given a structured, self-report questionnaire, with 178 responses included in the final analysis. IBM SPSS Statistics (version 21.0) was used for statistical analysis, with a significance level of p<0.05. Some general characteristics and volunteer activity properties were found to affect self-efficacy, self-esteem, and resilience. Academic achievement and participation in volunteer activities improved self-efficacy, self-esteem, and resilience. In addition to the factors affecting academic achievement, volunteer participation, age, religious, etc. It is thought that the development of various programs that provide students with academic motivation and natural opportunities to participate in volunteer activities would be helpful, as would increasing group activities to encourage active participation.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.8 no.3
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• pp.488-495
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• 2007

In spite of regular electrical safety inspection and improvement management of incongruent facilities, over 80 percent of electrical fires were generated in electrical facilities for general use, and the prevention of electrical safety accidents gets more difficult because of incomprehension on electrical safety inspection system, the increasement of non-inspection electrical facilities user, un-installation of residual current protective devices and leaving unsuitable equipments alone. This paper analyzed electrical safety inspection system of electrical facilities for general use and results of safety inspection and electrical fire statistics, and deducted the related problems. Also, improvement method of safety management of electrical facilities for general use was proposed in view of electrical safety inspection system, inspection implementation method, electrical fire statistics establishment, electrical safety consciousness and remote electrical safety inspection system.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.4
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• pp.1755-1764
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• 2013

This study was to identify factors influencing the job-related burnout of the nurses and caregivers in nursing homes. The participants in this study were 188 who were working as nurses (77) and caregivers (111) at five nursing homes in Seoul and Gyeonggi Province. Collected data were analyzed in independent t-test, Pearson's correlation coefficients, multiple stepwise regression using IBM SPSS Statistics 19.0. The nurse's job-related burnout was positively correlated with job-satisfaction(r=.333, p=.003), and stress(r=.484, p<.001), whereas caregiver's job-related burnout was positively correlated with stress(r=.458, p<.001). The factor influencing on nurse's job-related burnout was interpersonal relation stress and this factors explained 27.0% of the variance. In case of the caregivers, work-related stress was a factor influencing on job-related burnout and it explained 21.2% of the variance. On the basis of the results in this study, the improvement of working conditions, and the development of stress management program should be considered systematically.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.26 no.3
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• pp.317-323
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• 2016

Objectives: This study was performed to estimate domestic usage amount of insecticide for fruit cultivation to suggest job-exposure matrix(JEM) regarding farmers treating agricultural insecticide. Materials and Methods: The domestic usage amount of insecticide for fruit cultivation was investigated according to two research methods. The former method is to use agricultural pesticides published annually from Korea Crop Protection Association(KCPA) and the latter method is to apply cultivation area of fruit provided officially from Statistics Korea(SK). Results: It was found that its domestic usage amount has decreased gradually from the first sale to presence(2012). However, there is a significant difference of annual usage trend of insecticide for fruit cultivation between shipments and estimation. The annual usage trends of insecticide for fruit cultivation based on regional classification were different from those based on total aspect. Conclusions: The region which used insecticide for fruit cultivation the most in Korea was as follows: Gyeonsang-do, followed by Jeolla-do, Chungcheong-do, Jeju-do, Seoul/Gyeonggi-do and Gangwon-do. An averaged ratio of usage amounts of insecticide based on shipments and those based on estimation by cultivation area was $980{\pm}186%$, which means that usage amounts of insecticide estimated by shipments are ten times higher than those based on cultivation area.

• Journal of Industrial Convergence
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• v.18 no.2
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• pp.1-7
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• 2020

This study was conducted to identify factors that affect subjective health in middle-aged with hypertension. Hypertension, a representative chronic disease, is a disease of increasing prevalence from middle age. To effectively manage hypertension from middle age, it is necessary to revise lifestyle based on subjective health awareness. The subjects of this study were 2,254 middle-age with hypertension who were 30-64 years of age among the 2014-17 national health and nutrition survey. Study variables consisted of general, physical, and psychological factors. For data analysis, compound statistics were made using SPSS 25.0 program and then complex statistics. The results of this study showed that the factors that significantly influenced the subjective health of the subjects were sex, age, economic level, number of households, home ownership, stress, quality of life, and their explanatory power was 20.4% (F = 12.58, p<.001). The results of this study can be used as a basis for the intervention to improve the subjective health of middle-aged with hypertension. Appropriate lifestyle modifications are needed to effectively manage hypertension based on good subjective health awareness.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.38 no.3
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• pp.136-148
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• 2015

We analyzed the effect of three different types of inventory systems for saving the total cost using simulation on the system where multiple depots and many retailers disperse on the limited area. Three types of inventory systems are single echelon system with inventory exchange and two-echelon system and the variant two-echelon system. Variant two echelon system is the two-echelon system where the inventory transshipmentsare allowed on every two stage inventory echelons. Inventories kept on every retailer are commonly used for all retailers when certain retailer has stock-out. And when all retailers are stock-out, inventories kept on every depot are commonly used for the retailers whose assigned depots are stock-out. These all three systems are simulated with the constraint of service level on wide range of parameter settings. Simulation results show that cost saving effect appear clear for single echelon system and two-echelon system when shortage cost portion and transportation cost portion becomes large respectively irrespective of depot number. Variant two echelon system seems to be superior to two other systems when transportationcost portion becomes very small. But this superiority is not proved in terms of statistics. So we may conclude that the variant two echelon system may be useless with the higher administrative efforts due to frequent inventory exchange. Also we note that the traditional two echelon system becomes inferior to two other systems in terms of statistics when service level becomes high or when demand variance becomes very large. And inventory integration effect that cost becomes saved when depot number decrease, diminishes when transportation cost or stock-out cost increases irrespective of inventory systems.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.11
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• pp.7831-7837
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• 2015

In order to understand how various support programs affect the development of traditional performing arts, I used descriptive statistics and multivariate statistics analysis on 267 surveys. I estimated relationship between item-whole by calculating mean and standard deviation. This will help us comprehend effects of the variables. Cronbach alpha coefficient, a measure of internal consistency, exceeded 0.7, indicating that reliability is satisfactory. I have established one main hypothesis and four sub-hypothesis to identify the relationship between support programs and the performing arts more clearly. The result supports that the support programs do have effects on the performing arts. However, there are not enough researches done on this subject, and additional researches are needed in order to systemize relevant theories and the development of performing arts industry.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.5
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• pp.2859-2869
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• 2014

The present study aims to examine job satisfaction and stress in relation to features of jobs taken by nursing assistants. The subjects for study are 469 nursing assistants active at work in various medical clinics and hospitals in Seoul Metropolitan City, engaged in a study conducted from May 1, 2013 through September 4, 2013. The positive analysis was verified at a significance level of five percent, and SPSS/WIN18.0 was used for statistics process. The analysis of frequency, t-test, one-way analysis of variance, and multiple regression analysis were conducted, and was then analyzed by multiple range test for statistics. The analysis reveals that job satisfaction level marks significant variance in accordance to the year of nursing assistant certificate acquired, age, and their final academic backgrounds. As to the job satisfaction variances in accordance to job features, the location of working places, fields of jobs, and the mode of jobs mark the highest. The study indicates that standardized directions for tasks in specific fields of jobs and education programs should be implemented for consistent management are requisite for improved efficiency of nursing assistants and professional nursing workforce.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.10
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• pp.213-220
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• 2016

This study surveyed 252 senior citizens in the Chungnam and Chungbuk regions to review the effects that information use has on quality of life. Participants were divided into two sub-groups based on household types. Data was analyzed using PASW Statistics 18.0. Major findings are as follows: First, information use, mental and psychological health, as well a&s social relationships found in study subjects were significantly higher among seniors not living alone. Second, factors that influence the quality of life were found to be same for each group, but significantly different for their influence of each group. Factors that influence the quality of life were found to be economic status, information use, and education level. Factors that influence the quality of life in elderly living alone were found to be economic status, education level, information use. Based on these findings, the study presents practical and integrated measures to help the original objective of this research to be achieved.