• Korean Journal of Health Education and Promotion
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• v.24 no.2
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• pp.77-91
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• 2007

Purpose: The purpose of this study was to investigate the relationship among health behavior, obesity and QOL, and to identify factors affecting QOL of University Students in rural area, to provide the basic data for health promoting program in order to improve the QOL. Methods: The subjects of this study were 991 university students. The collected data was analyzed using descriptive statistics, t-test, ANOVA, Scheffe's test, Pearson correlation coefficient and Stepwise multiple regression with SAS. Results: In the degree of the obesity were 13.4% of the underweight group, 48.9% of the normal weight group, and 37.6% of the overweight group. The average item score for the QOL was 3.19; the highest score on the subscale was physical domains(M=3.25) with the lowest environmental domains. In the degree of health behavior performance were 15.3% of regular health check, 27.5% of exercise, 45.1% of no-smoking, 32.4% of no-drinking alcohol, 53.1% of sleeping 7-hour, 49.7% of weight care, 56.1% of stress management, and 44.4% of breakfast. The score of QOL was statistically significant difference according to age, occupation of father, the number of brothers, total income, level of life, perceived health status, and admission of hospital. The score of QOL correlated positively with health behavior(r=.2521, p<.0001), and the scores of health behavior correlated positively with obesity(r=.0915, p=.0039). Stepwise multiple regression analysis for QOL revealed that the most powerful predictor was level of life. Stress management, perceived health status, sleeping 7-hour, regular health check, admission of hospital, total income, and weight care explained 13.2% of the variance. Conclusions: Therefore, it is necessary to develop health behavior promotion program in order to enhance the quality of life of university students. Future studies need to be pursued to find significant influencing factors for QOL of university students.

• Journal of Fisheries and Marine Sciences Education
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• v.21 no.1
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• pp.16-27
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• 2009

The purpose of this study was to develop of learning strategy scale for college students. This study further classified several sub-areas and defined each concepts of learning strategy. Based upon the classification of each sub-areas, tentative test items were developed through the verification of validity by three professionals. A pilot study of the developed scale was administered to 239 college students. And the research collected major data from 1,012 college students. Data were analyzed to obtain item quality, reliability, and validity analysis. The results of this study were as follows. The scale for learning strategy was defined by eight factors and they were 'self-management strategy', 'examination-readiness strategy', 'cognitive strategy', 'memorizing strategy', 'reporting strategy', 'resource-utilization strategy', 'self-regulated strategy', 'cooperative learning strategy'. The results of the confirmatory factor analysis proved the eight factors in the learning strategy. And criterion validity evidence was also obtained from a correlation analysis of the level of academic achievement.

• Journal of Environmental Health Sciences
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• v.14 no.1
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• pp.39-45
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• 1988

The stochastic variations were analyzed periodicity by autocorrelation, variance spectrum and Fourier series. These time series included hourly and hourly mean observations on DO, water temperature and air temperature which measured by automatic recording instrument at Guii from 1, Jan., 1986 to 23, Feb., 1986. The results of study were as follows: l. Autocorrelation coef. (lag time 120) DO($\varrho_1$= 0.9705), WT($\varrho_1$ = 0.9890), and AT($\varrho_1$ = 0.9874) were deeply related. DO and AT clearly showedr 24-hour periodicities while WT showed 23-26 hour periodicity. 2. Spectral density showed high at 24 hour in eech item and all of them showed weak peak at 12 hour. 3. The explained variance, which was a measure of the contribution of periodic function to the original time series, varied high 90.8 - 94.7%. This results showed that water qualities at Guii were affected deterministic components.

• Journal of Information Technology Applications and Management
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• v.24 no.1
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• pp.111-128
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• 2017

Existing studies for recommender have focused on recommending an appropriate item based on the customer preference. However, it has not yet been studied actively to recommend purchase timing for the repurchase product despite of its importance. This study aims to propose MLP and RNN models based on the only simple purchase history data to predict the timing of customer repurchase and compare performances in the perspective of prediction accuracy and quality. As an experiment result, RNN model showed outstanding performance compared to MLP model. The proposed model can be used to develop CRM system which can offer SMS or app based promotion to the customer at the right time. This model also can be used to increase sales for repurchase product business by balancing the level of order as well as inducing repurchase of customer.

• Journal of Fisheries and Marine Sciences Education
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• v.26 no.3
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• pp.627-638
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• 2014

The aims of this study are to analysis the elements associated with a occupational basic competencies of fisheries and maritime high school students. Fisheries & maritime key competencies were defined as the abilities that include the essential knowledge, skills, attitude, and experiences required for the workforce on the fisheries and maritime job condition. This research collected preliminary data from 177 fisheries & maritime high school teachers. Data were analyzed to obtain item quality, reliability and validity analysis. The results of the study were as follows; First, largely, fisheris & maritime key competencies were divided into two parts; basic vocational skills and fisheries-maritime job skills. Second, fisheries & maritime key competencies were consisted of communicative competence, numeracy skills, thinking skills, English communication skills, self-management skills, interpersonal competency, selection & application of alternative, marine technology & information skills, marine consciousness and maritime professional ethics. Third, each key competency consisted of 2-9 sub-competencies.

• Communications for Statistical Applications and Methods
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• v.17 no.3
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• pp.319-326
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• 2010

In this paper, a new group sampling plan for the lot acceptance is proposed for the time truncated life test, which can be utilized when multi-item testers are implemented. The design parameters are found using the two-point approach such that the producer's and consumer's risks are satisfied simultaneously at the acceptable reliability level and the lot tolerance reliability level, respectively. The case of Weibull distribution is described to illustrate the procedure that can be used when the quality level is expressed by a multiple of the specified life. The advantage of the proposed plan is demonstrated by comparing with the existing plan in terms of the sample size required. The tables are constructed and some examples are given to illustrate the procedure developed here.

• Journal of Information Management
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• v.43 no.2
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• pp.23-42
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• 2012

This study is to investigate and analyze the service quality and satisfaction perceived by users and librarians of the Foreign Research Information Center (FRIC). The survey results reveal that three groups of in-campus (internal) user group, external user group and interlibrary loan librarian group has highly perceived the service quality and satisfaction of the FRIC. Two user groups have statistically significant different perceptions on the service quality, loyalty, and satisfaction. Internal user group perceived more highly than external user group, in 6 items of satisfaction, 1 item of loyalty, and 7 items of service quality. Structural equation models of satisfaction and loyalty on two user groups were proved to be appropriate. Material factor including success rate of copied text and general physical status of the copy influences significantly on the user satisfaction in both groups.

• The Journal of the Korea Contents Association
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• v.22 no.8
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• pp.347-357
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• 2022

This study was attempted to identify the health-related quality of life of Chronic Obstructive Pulmonary Disease (COPD) patients and factors influencing the quality of life, focusing on Health-related quality of life with 8 items (HINT-8). The subjects of this study were 451 adults aged 40 years or older who performed lung function tests and whose ratio is less than 0.7 by measuring forced respiratory volume in 1 second [FEV₁] to forced vital capacity in the 2019 National Health and Nutrition Examination Survey, It was analyzed using SAS program. As a result, both the HINT-8 index and EuroQol five-dimensions 3-level version (EQ-5D-3L) index were appropriate as tools to measure the health-related quality of life in COPD patients, and the factors affecting the health-related quality of life were age, gender, income, and smoking status, comorbidities, stress, and subjective health status. Therefore, in order to improve the health-related quality of life of COPD patients, an individualized management program suitable for the characteristics of subjects such as the low-income class and the elderly, including smoking cessation education and stress management, should be developed and applied.

• The International Journal of Costume Culture
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• v.12 no.2
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• pp.141-152
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• 2009

In this study, the business structure and characteristics of buying offices used by buyers for apparel productions through global sourcing were analyzed in specifics. Data were acquired through in-depth interviews of twelve merchandisers at representative apparel buying offices. The results of this study can be summarized as following. The business structure of a buying office varied depending on the functions, the item characteristics of products to be manufactured or the characteristics of the major buyers who were the customers. Overall, teams were formed by brands or organizations were formed by functions. Functional teams were divided within each brand team when business teams were divided by brands and personnel was divided by brands occasionally within each functional team when business teams were divided by functions. Business teams were composed of MR which managed the overall business about orders such as factory sourcing, price decision and production management and teams with various specialized skills. The teams with specialized skills were composed of Technical team, Fabric Development team, Colorist team, Quality Assurance (QA) or Quality Control (QC) team, Logistics team, Factory Audit team, and etc. For the future directions on the improvements, ways to increase international competitiveness of buying offices need to be researched and many expressed the opinion that it would be effective to move the offices to countries close to buyers or manufacturing locations as most buyers demand lower prices and shorter lead time than before and it is increasing trend for buyers and factories to do business directly without buying offices in the middle.

• Journal of the Korean Academy of Esthetic Dentistry
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• v.23 no.2
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• pp.95-104
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• 2014

This study is about the basis of satisfactions by patients : One is 'what factors of the marketing by dental medical service have an effect on consumers dental clinic' The other is 'what is the most important part when consumers choose the dental medical ser Seoul and Gyeonggi area unintentionally. Finally 446 people were analyzed. 6 general questions, 5 selective form questions when consumers choose the dental service, 11 satisfactions questions after treating and thought of reuse the dental service 6 (Likert scale) questions. Whether the choice of hospital dental marketing by dental analysis, both male and female hospital medical marketing and use of selected highly suggests that it does not respond. The resulting satisfaction analysis using the Hospital Dental Marketing consumer access to medical care, and then, a full explanation, comfort, quality and level, health care costs, treatment management, and symptom improvement were higher satisfaction with the item, select the dental healthcare after the analysis of the marketing of recycled doctors are otherwise subject the person selected from all entries equal to or higher than the average consumer satisfaction showed a higher medical doctor also higher reuse. Consequently, Through the use of marketing to choose the best dental healthcare need to providing quality care.