• Journal of the Korean Society of Safety
• /
• v.26 no.6
• /
• pp.79-84
• /
• 2011

There have been so many studies related to job stress or musculoskeletal disorders(MSDs) in the shipbuilding industry. However, study of employee performance evaluation that reflect on the industrial features of the deckhouse manufacturing industry has not been established. Therefore, this study aimed to evaluate workers' job stress and work ability through statistical significance tests according to age, work types, years of service, work forms and sex. For this, the study conducted a job stress test using the Korean Occupational Stress Questionnaire Short Form, and employee performance evaluations using the Work Ability Index(WAI) of the Finnish Institute of Occupational Health (FIOH) on 536 workers in the deckhouse manufacturing industry. MINITAB statistics program was used for statistics analysis and significance was verified with the Kruskal-Wallis test, a corporate body of nonparametric statistical analysis. As a result, employee performance had significant differences, depending on age, work types, years of service and sex, and job stress also depended on the number of service year and work form. Additionally, it was found that employee performance decreased more as job stress increased.

• Korean Journal of Hydrosciences
• /
• v.6
• /
• pp.13-22
• /
• 1995

The augmenting hydrologic data using a correlation procedure has been used to improve the estimates of the mean and variance at the site of interest with short record when one or more near by sites with longer records are available. The variance of the unbiased maximum likelihood estimator of $ derived by Moran based on the multivariate normal distribytion is modified into the form of Matalas and Jacobs for the biveriate normal distribution to get the critical minimum values of the multiple correlation coefficient which give the improvement for estimating the variance at the site of interest. Those values are tabulated for various lengths of short records and the number of sites.

• Journal of the Mineralogical Society of Korea
• /
• v.9 no.2
• /
• pp.64-70
• /
• 1996

Early weathering products of anorthosite were investigated by using scanning electron microscopy in order to trace the development of halloysite particles and aggregates. Tiny short tubes or spheres precipitate on the plagioclase surface in the initial stage of weathering and form the compact globular aggregates. With continued growth, several globules are coalesced into wrinkled halloysite aggregates, and short tubes or spheres in globules grow into long tubes forming sheaf-like aggregates. Particle shape of halloysite varies with changing supersaturation degree of weathering solution, and determines the morphology of halloysite aggregates.

• Proceedings of the KIEE Conference
• /
• 1997.07c
• /
• pp.1177-1179
• /
• 1997

In this paper, short-term power demand forecast using exclusion of week periodicity presented. Week periodicity excluded from weekday change ratio. Forecast term of five and multiple regression model of the three form was composed. Forecast result was good. Therefore, It Could be the power demand forecast of special day(weekend). This method may contribute improvement of forecast accuracy.

• The Journal of the Korea Contents Association
• /
• v.16 no.9
• /
• pp.580-589
• /
• 2016

This study aimed to develop the short-form of age-friendly scale which was suitable for the Korean cities and to examine the validity. To develop the scale, WHO and Seoul welfare foundation's age-friendly city guide were compared and analyzed. The data for this study were collected on people aged over 55 years old living in Seoul. The results in exploratory factor analysis showed that seven-factor structure model was appropriate for the scale. Seven factors were outdoor amenity, transportation, leisure activity, social participation, social communication, health and welfare service, social exclusion. The results supported the construct and concurrent validity of the age-friendly scale. Also its good internal consistency was confirmed. The implication and limitation of the study and suggestions for the future studies were discussed.

• Journal of Sasang Constitutional Medicine
• /
• v.21 no.1
• /
• pp.79-84
• /
• 2009

1. Objectives This study was proposed to use the test-retest method to verify the independence and agreement between the questions (Short Form Sasang Classification Questionnaire for American ; SF_SSCQ-A). 2. Methods The questionnaire was administered to 50 American and they were asked to complete the questionnaire again two weeks after the first administration. The final subjects are 42 except of 5 dropouts and 3 insufficient respondents. A reliability analysis for each individual question was conducted using the test-retest method to verify the independence and agreement between the questions. To verify independence, a Chi-square test with crosstabs analysis and p-values was used. The agreement verification was conducted by using the Cohen kappa coefficient. In addition, the constitutional variable was defined as the constitutional attribute of each question, and Pearson's correlation coefficient was confirmed after testing the scale. 3. Results and Conclusions The test-retest method showed that Pearson's correlation coefficients for the results of the two tests ranged from 0.66 to 0.87. The Chi-square test results indicated that there are 7 independent item. Among the other 114 questions, the agreement test revealed that 88 questions (70.5%) showed above common agreement.

• The Journal of the Korea Contents Association
• /
• v.21 no.2
• /
• pp.507-519
• /
• 2021

This paper attempts to explore advertising factors that affect TikTok advertising effectiveness by identifying motivations to use a short-form video social media platform, TikTok and further looking at perceptions of and attitudes toward TikTok advertising. The results of in-depth interviews with 20s-30s TikTok users suggest that users are motivated to use TikTok for information and fun. Further, TikTok is characterized as a short-form video, rich contents, and a novel format. Regarding TikTok advertising, the results reveal that usefulness, enjoyment, easiness of advertising skip, sense of closeness, and interaction are significant factors of TikTok advertising. Finally, it is suggested that users respond to the advertising by clicking 'like', writing comments, sharing, clicking 'purchase link'/advertiser's website, and creating user-created contents and so on. These findings theoretically contribute to the literature on social media advertising, and practically offer strategic guidelines for TikTok advertising.

• Journal of Oriental Neuropsychiatry
• /
• v.33 no.1
• /
• pp.21-31
• /
• 2022

Objectives: To perform correlation analysis between the Core Seven Emotions Inventory-Short Form (CSEI-s), Beck Anxiety Inventory (BAI), Beck Depression Inventory (BDI), upper gastrointestinal symptoms, and gastroscopic findings and to compare emotional characteristics with upper gastrointestinal endoscopic findings. Methods: In this study, medical records of 38 participants who visited the hospital for examination purposes or complained upper gastrointestinal symptoms and completed the CSEI-s, BAI, BDI, and Questionnaire for upper gastrointestinal symptoms were analyzed using SPSS (Statistical Package for the Social Sciences) version 25.0. Frequency Analysis, Descriptive Analysis, Independent t-test, Mann-Whitney's U-test, and Correlation analysis were performed. Results: The upper gastrointestinal symptom group showed higher levels of anger, sorrow, depression, and anxiety than the asymptomatic group. On gastroscopy, the normal group had higher levels of Joy than the abnormal group. The reflux esophagitis group showed higher levels of thought, depression, sorrow, and anxiety than the non-reflux esophagitis group. Joy showed a negative correlation with BDI score. However, anger, depression, sorrow, BAI, and BDI score showed positive correlations. Conclusions: Results of this study suggest that CSEI-s can be used to treat patients with upper gastrointestinal symptoms and reflux esophagitis.

• The Journal of the Korea Contents Association
• /
• v.22 no.8
• /
• pp.115-125
• /
• 2022

This study examines the effect of performers on the number of views and likes of entertainment show clips consumed on AVOD short form platform. Multiple regression analysis was performed, setting program viewing factors and performer's topicality index as independent variables, and setting the number of views and likes of clips as dependent variables. As a result of the analysis, performer's topicality index had a positive(+) effect on both dependent variables. According to standardized coefficient, on the number of views, the standardization coefficient of the performer's topicality index was the second highest, and on the number of likes it was the highest among variables. The results suggest that performers contribute a lot to the success of clips on AVOD short form platform.

• Industry Promotion Research
• /
• v.9 no.3
• /
• pp.193-203
• /
• 2024

This study analyzes user behavior on YouTube Shorts within snack culture and proposes short-form video production strategies by identifying key value factors. Prior research identified seven characteristics (playfulness, time killing, information provision, social presence, interactivity, escapism, conciseness) and criteria based on the 5W1H principles. Surveys and interviews revealed that key user values are playfulness, time killing, conciseness, and interactivity. Users engage without specific purposes, watch 10-20 consecutive pieces selectively, and use it in comfortable environments. This research provides insights for understanding user behavior and short-form video production strategies.