• Journal of the Korea Safety Management & Science
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• v.17 no.2
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• pp.55-66
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• 2015

In the perspective of industrial health management, it is important for the employee to decrease their job stress, to improve their productivity and quality of labor. In this study, the job stress, and it's influence on PWI(Psychosocial Wellbeing Index) were investigated by the questionnaire survey of 138 industrial workers who had studied assistive technology in college. The contents of questionnaire consist of the demographic characteristics, job-related characteristics, job stress and psycho-social stress. We evaluated job stress by KOSS-SF(Korean Occupational Stress Scale-Sort Form) and psychosocial stress by PWI-SF(Psychosocial Well-being Index-Short Form). To analyze the results, we evaluated the exposure level of KOSS and PWI by demographic characteristics and job-related characteristics using significance tests. Also, we estimated the relationship among demographic characteristics, job-related characteristics, job stress and psychosocial stress, using correlation analysis. As a results, all workers were found to be in a group under the high risky stress. It showed that the scale index of female's job non-autonomy and pwi were much larger than those of male's. Therefore, to guarantee job autonomy of female workers should be more emphasized, to improve their working environment. Job type had significant relationships with many job stress category; physical environment, job demand, job instability and organization culture. Regarding pwi, the scale index of the workers who is in charge of the civil service such as contacting the disabled and the aged in person, were much larger than that of the other workers. Accordingly, the job stress management program including physical environment, job demand, job instability and organization culture, should be suggested, to decrease the stress of the workers in charge of the disabled and the elders service. The strongest predictors of pwi was organization system through maximum positive relations between organization system and pwi. Therefore, it indicates that improvement of organization system such as a fair merit rating, a manpower supply, demand plan and department cooperation is urgently needed to reduce pwi.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.9
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• pp.1373-1381
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• 2013

The purpose of this study was to examine the level of job stress and depression, and to find the associated domains of job stress with depression among local public officials. The study subjects consist of 734 local public officials in Seogu, Gwang Ju. A structure self-reported questionnaire was composed of general and job-related characteristics, job stress(KOSS), and depression(CES-D). The use statistical methods were t-test, ANOVA, Pearson's correlation analysis and multiple logistic regression analysis. The total score of job stress was $44.38{\pm}7.96$ and the score of depression was $14.46{\pm}10.19$. The result of multiple logistic regression analysis was shown that the three domains of job stress including job demand, job insecurity and lack of reward were associated with the depression.

• Journal of People, Plants, and Environment
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• v.24 no.2
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• pp.137-152
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• 2021

Background and objective: This study was carried out to investigate and analyze the preference for plant fragrance and the psychological effects of a agro-healing activity in 101 firefighters aged 39.71 ± 10.94. Methods: For the psychological evaluation, post-traumatic stress symptoms, Korean occupational stress scale short form (KOSS-SF), emotional intelligence, and job satisfaction were surveyed on the Likert scale. For the preference for plant fragrances, 20 ㎕ of commercially available essential oils from four plant species (Mentha spp., Lavandula spp., Citrus limon, C. sinensis) were absorbed into each test paper and provided to the participants. Results: The rate of post-traumatic stress symptoms was high at 37.6% of the firefighters surveyed.. C. limon fragrance had the highest preference among the four plant fragrances, followed by C. sinensis > Mentha spp. > Lavandula spp. with statistically significant difference (F = 14.256, p < .001). The lower their age, income, and position, and higher the education level, the higher the preference for plant fragrances. And the administrative group had higher preference for plant fragrances than field group. In addition, as a result of examining the correlation between job satisfaction, preference for plant fragrance, post-traumatic stress, emotional intelligence, and job stress for fire-fighters, the higher the job satisfaction, the higher the fragrance preference and emotional intelligence, and the lower the post-traumatic stress and job stress. Conclusion: Therefore, installing a garden using botanical fragrances at workplaces that firefighters can easily access will improve job satisfaction and relieve stress. It can be concluded that applying the fragrance of plants to the healing farming activities at the fire-fighter's workplace can increase the usefulness of the healing activities.

• International Journal of Knowledge Content Development & Technology
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• v.7 no.4
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• pp.71-84
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• 2017

The paper discusses the nature of Knowledge Organization Systems (KOSs) and shows how these can support digital library users. It demonstrates processes related to integration of KOS like the Dewey Decimal Classification, $22^{nd}$ edition (DDC22) in DSpace software (http://www.dspace.org/) for organizing and retrieving (browsing and searching) scholarly objects. An attempt has been made to use the DDC22 available in Bengali language and highlights the required mechanisms for system-level integration. It may help a repository administrator to build an IDR (Institutional Digital Repository) integrated with SKOS-enabled multilingual subject access systems for supporting subject descriptors based indexing (DC.Subject metadata element), structured navigation (browsing) and efficient searching.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.13 no.4
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• pp.274-280
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• 2003

If a sinusoidal excitation force moves back and forth along a structure with a certain frequency, the structure will be excited with the difference frequency of these two frequencies. A low frequency vibration shaker has been developed using this force frequency shifting without actually moving a shaker The shaker consists of an ordinary eccentric mass shaker, a plate, constant springs, and time varying dampers. The dampers are turned on and off in a sequential manner to simulate a traveling slide of an excitation force. The operation of the shaker is simulated by solving the equations of motion of the shaker. Characteristics of the shaker have been found and they can be utilized to design efficient low frequency shakers.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2002.11b
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• pp.182-186
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• 2002

If a sinusoidal excitation force moves back and forth along a structure with a certain frequency, the structure will be excited with the difference frequency of these two frequencies. A low frequency vibration shaker has been developed using this force frequency shifting without actually moving a shaker. The shaker consists of an ordinary eccentric mass shaker, a plate, constant springs, and time varying dampers. The dampers are turned on and off in a sequential manner to simulate a traveling slide of an excitation force. The operation of the shaker is simulated by solving the equations of motion of the shaker. Characteristics of the shaker have been found and they will be utilized to design efficient low frequency shakers.

• Korean Journal of Childcare and Education
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• v.14 no.1
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• pp.187-202
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• 2018

Objective: The study aims to examine fathers' parental stress and the variables effecting parental stress of fathers with infants. Methods: One hundred seventeen fathers with 0 to 2 year-olds were recruited from daycare centers in Daejeon metropolitan city. The Korean version of the Parenting Stress Index Short Form (K-PSI-SF) by Lee, Jung, Park and Kim(2008), The Korean Occupational Stress Scale-Short Form (Koss-SF) by Jang and Ko(2005), and the Revised-Kansas Marital Satisfaction Scale(RKMSS) by Chung (2004) were used to measure fathers'parental stress, occupational stress, and marital satisfaction. Results: First, the most influential variable that affected father's parental stress was their marital satisfaction. The fathers felt less parental stress when they felt higher marital satisfaction. Second, fathers felt less parental stress when their occupational environments were family friendly. Conclusion/Implications: Ways to improve mariatal satisfacation and a family friendly evironment at work should be sought out in order to lessen the parental stress of fathers raising infants.

• 한국벤처창업학회:학술대회논문집
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• 2018.04a
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• pp.143-147
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• 2018

직무스트레스를 이해하기 위해 많은 선행연구가 있어왔다. 특히 고위험 공무직군의 직무스트레스는 다양한 정신건강에 영향을 미쳐오고 있는 만큼 연구된 내용을 이해할 필요가 있다. 선행연구내용을 경찰관과 소방관을 중심으로 분류하고 적용된 직무스트레스 모델과 척도를 분석하였다. 분석된 논문에서 직무스트레스가 영향을 주고 있는 정신장애를 확인하고, 직무스트레스와 정신장애 간의 영향을 조절할 수 있는 조절변인들을 확인하였다. 직무스트레스 모델과 척도는 JCQ, ERI, NIOSH 모델을 바탕으로, 척도는 KOSS(52%)가 가장 많았다. 또한 직무스트레스가 영향을 주는 요인들로는 직무태도(62%)로 가장 많았으며, 우울(19%)로 나타났다. 직무스트레스를 조절하는 변인으로 직무만족(20%), 사회적지지(19%), 직무특성(15%)로 나타났다. 논의에서는 연구의 한계와 직무스트레스가 영향을 주는 정신장애와 조절변인들을 분석하는 것을 통해서 이후 연구에 나아갈 방향을 제시하였다.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2002.11a
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• pp.324.2-324
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• 2002

If a sinusoidal excitation force moves back and forth along a structure with a certain frequency, the structure will be excited with the difference frequency of these two frequencies. A low frequency vibration shaker has been developed using this force frequency shifting without actually moving a shaker. The shaker consists of an ordinary eccentric mass shaker, a plate, constant springs, and time varying dampers. The dampers are fumed on and off in a sequential manner to simulate a traveling slide of an excitation force. (omitted)

• The Bulletin of The Korean Astronomical Society
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• v.43 no.2
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• pp.32.4-33
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• 2018

We present the BAT AGN Spectroscopic Survey (BASS) which is an optical/NIR spectroscopic survey of the least biased sample of hard X-ray selected local AGN. For more than a thousand AGN that identified through Swift-BAT hard X-ray all-sky survey, we are conducting dedicated spectroscopic observing runs using world-class telescopes such as ESO-VLT, Magellan, and Palomar. The goal of the project is measuring black hole mass, investigating supermassive blackhole growth and its structure, and providing a baseline for future X-ray missions that will perform deeper observations of more distant AGN. In this presentation, we briefly introduce the concept of the project, past and the current status, and future work.