• Journal of Practical Engineering Education
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• v.14 no.1
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• pp.195-203
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• 2022

Recently, as the introduction of smart factories spreads, interest and research on the positive and negative effects of smart factory introduction are increasing. This study quantitatively analyzed the changes in the workplace innovation index following the introduction of smart factory for 750 companies in the 4 categories of the workplace innovation index. Overall, the workplace innovation index of companies that introduced smart factory was higher than those that did not, and there was a statistically significant difference, especially in the work organization. In addition, as a result of analyzing the effects of smart factory introduction and workplace innovation consulting together, in the case of labor-management relations and work organization, the introduction of a smart factory and consulting were found to match the improvement of the workplace innovation index.

• Journal of Information Technology Applications and Management
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• v.25 no.3
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• pp.55-66
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• 2018

Early smart-work of company K was a technology-led way of applying ICT such as smart phones and mobile devices to business. After company K perceived the limitations of ICT-driven smart work, it propelled the work-smart, doing a work smart toward the way that human beings become central and a creative organizational culture is engendered. Company K propelled work-smart strategy in eight categories: simplification of data requirements, establishment efficient meeting culture, streamlining reporting and approval process, simplified document creation, overtime decrease, spreading flexible work system, settlement of healing leave, creating work-smart place. Company K set up an organizational culture secretariat dedicated to work-smart promotion and selected task priorities in consideration of urgency and effectiveness. Owing to such efforts, the company K's work-smart index rose sharply to 72 points this year from 56 points in the previous year. At the organizational culture survey, employees responded that organizational culture improved in all area. For a better future, company K analyzed its work-smart outcomes and planned progressively to improve its work-smart efforts based on employees opinions. This case study will serve as a guideline, for companies to make efforts to going forward to today work-smart beyond yesterday smart-work.

• Journal of Korean Clinical Health Science
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• v.4 no.4
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• pp.699-708
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• 2016

Purpose. This study assessed the actual status of oral health behaviors, oral health consciousness and oral health belief with workers at work sites in some regions and would utilize the results of changes in the hygiene status in the oral cavity as basic materials for developing an education program for the oral health promotion of workers at work sites with the implementation of oral health education and oral health promotion program. Methods. The subjects of the study were 106 workers who expressed their intention to participate in a program in SMEs that agreed on the activities of an oral health education program through an education once per week, of the SMEs with less than 500 persons, located in G. City. General characteristics and the questionnaires of the items on the survey were investigated with a self-administered method, and the collected data were statistically analyzed, using SPSS 20.0. Results. As a result of research, it was noted that PHP-Index, the dental plaque index in the oral cavity became lower from 2.02 points to 1.00 point with continuous management and practice of oral promotion behaviors, and that the oral hygiene status improved. Conclusions. In order to promote the oral health of workers at work sites, substantially, it would be necessary to introduce an oral health promotion program they can practice themselves and through continuous education of oral health by assessing their consciousness and the actual status of their oral health behaviors, and it is expected that their oral health would be promoted ultimately by changing workers' oral health behaviors and consciousness.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.43 no.2
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• pp.56-64
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• 2020

This paper is a follow up to the previous study which reveals that smartphone users are divided into three subcategories according to their usage characteristics. In this paper, these groups are called as 'general', 'entertainment', and 'work-assistant', taking into account their respective characteristics. The 'general' is a group whose smartphone usage characteristics are not focused on a specific purpose, the 'entertainment' is focused on music, internet, SNS, picture, and e-banking, and the 'work-assistant' is on work, GPS, diary. Inter-relation between the importance and satisfaction for the purchase determinants to the groups is investigated. In addition, Kano analysis of quality attributes is also performed, which includes quality type, satisfaction/dissatisfaction index, and PCSI (Potential Customer Satisfaction Improvement) index. The analysis result are as follows. Firstly, inter-relation between importance and satisfaction differs by user group. 'Internet', 'Ease of use', and 'Performance' purchase determinants are evaluated as competitive determinants in 'work-assistant' user group. Secondly Kano quality types of quality characteristics also differs by user group. 'Application' was classified as an attractive (A) types to 'entertainment' group and so on. 'Internet' 'Failure/Bug', 'Touch response rate' and 'Charging' are located in 'Nice' Region of S-PCSI Diagram and have to be considered as strategic quality characteristics. The results of this study is expected to give some helps in establishing a customer tailored quality strategy.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2018.11a
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• pp.130-131
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• 2018

The main purpose of this study is to analyze the importance of the construction work of apartment buildings. The construction work operation was divided into five major tasks, which include: Schedule Control (P'1 - P5) Construction Management (C'1 - C'5), Environmental Management (E'1 - E'3), and Quality Management. Finally, this study derived major construction execution tasks through correlation between construction work and the original index and t-test.

• Physical Therapy Korea
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• v.7 no.2
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• pp.20-34
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• 2000

The purpose of this study was to establish modified physiological cost index (PCI) for predicting energy consumption by heart rate (HR) at isokinetic ergometer exercise testing. The subjects were twenty-eight healthy men in their twenties. All of them performed upper and lower extremity isokinetic ergometer exercise tests which had six loads (400, 500, 600, 700, 800, and 900 kg-m/min) and five loads (400, 500, 600, 700, and 800 kg-m/min) respectively. The exercise sessions were finished when HR was in plateau. HR and oxygen consumption were determined during the final minute. Resting heart rate and oxygen consumption were used for calculating heart rate, oxygen consumption changes and modified PCI. Regression analysis established the relationship between each variable to work load, HR and oxygen consumption. The results were as follows: 1) In the lower extremity ergometer exercise test, oxygen consumption increased continuously as work load increased, but in the upper extremity ergometer test, oxygen consumption only increased until work load was 700 kg-m/min. 2) HR increased as work load increased in both exercise tests, but in the upper extremity ergometer test, HR decreased from the 700 kg-m/min. 3) The modified PCI increased as work load mcreased until the 700 kg-m/min point in the lower extremity ergometer test and until the 500 kg-m/min point in the upper extremity ergometer test when it started to decrease in both tests. 4) In the lower extremity ergometer exercise test, regression analysis established the relation as $dVO_2$ = -.0215HR - .2141 where $dVO_2$ is given in l/min and HR in beat/min ($R^2$ = .2677, p = .000). ln the upper extremity ergometer exercise test. regression analysis established the relation as $dVO_2$ = -.0115HR + .2746 ($R^2$ = .1308, p = .000). The results of this study were similar to previous studies but were different under high work load conditions. So modified PCI should be used with only low intensity work load testing. Subjects for upper extremity ergometer exercise testing should complete a prescribed training course prior to testing, and only low intensity work load should be used for safety considerations.

• Journal of Family Resource Management and Policy Review
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• v.16 no.2
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• pp.1-18
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• 2012

This study analyzes the balance between work and family in married, working men and investigates their need to create this balance. Data from 253 married men was collected and analyzed. The index for the questionnaire was developed using the scale from the Second National Survey of Korean Families and related research. The results show that married, working men are slightly better at balancing their work and family lives than average. Furthermore, the effects of job-related variables were higher than the effects of other social-demographic variables. Job flexibility was the major variable that determined the balance between work and family. The highest need to balance between work and family was monetary support for caring and educating children. This paper concludes that in order to improve the work-family balance, the current working culture has to be changed, and various policies and strategies that encourage a family-friendly working culture must be implemented.

• Journal of Korean Clinical Health Science
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• v.3 no.1
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• pp.256-267
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• 2015

Purpose. The objective of this study was to investigate factors influencing turnover intention index of work environment, emotional labor by hospital nurses Methods. A survey was conducted with 290 nurses who were working hospital. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson correlation coefficients and multiple regression with SPSS window 18.0 program. Result. Findings revealed that; 1) The mean scores were 2.81 [range : 1-5] for work environment, 3.24 [range : 1-5] for emotional labor, 3.43 [range : 1-5] for turnover intention. 2) Pearson's correlation revealed work environment was negatively correlated with turnover intention but emotional labor positively correlated with the turnover intention. 3) Hrarchical multiple regression analysis showed work environment, ages, assign ward, period in current hospital, emotional labor significantly influenced turnover intention in hospital nurses. Conclusion. These findings can be utilized to development of strategies to improving the work environment, managing the emotional labor for decreasing turnover intention of hospital nurses so that can be long time.

• Safety and Health at Work
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• v.8 no.4
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• pp.356-363
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• 2017

Background: The aim of this study was to investigate which physical and psychosocial work demands were associated with excellent work ability in individuals with neck pain, and to investigate age and sex differences in these associations. Methods: The study sample was obtained from the Statistics Sweden cross-sectional Work Environment survey and consisted of workers who reported neck pain after work (N = 3,212). Results: The findings showed an association between excellent work ability and self-reported low exposure to lifting, twisted work posture, working with hands in shoulder level or higher, and leaning forward without support and combination of exposures containing these work demands. Low exposure to seated work and high demands showed a reversed association. The associations were present mainly among older workers and were generally stronger for men than for women. Conclusion: This study indicates that a lower level of physically demanding work is an important element to maintain excellent work ability, especially for the older worker with neck pain.

• Journal of KIISE:Databases
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• v.30 no.1
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• pp.27-40
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• 2003

The inverted index widely used in the existing information retrieval field should be extended for XML documents to support containment queries by XML information retrieval systems. In this paper, we consider that there are two methods in storing the inverted index and processing containment queries for XML documents as the previous work suggested: using a RDBMS or using an inverted lift engine. It has two drawbacks to extend the inverted index in the previous work. One is that using a RDBMS is moth worse in the performance than using an inverted list engine. The other is that when containment queries are processed in a RDBMS, there is an increase in the number of a join operation as the path length of a query increases and a join operation always happens between large fables. In this paper. we extend the inverted index in a different way to solve these problems and show the effectiveness of using a RDBMS.