• Journal of the Korea Society of Computer and Information
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• v.17 no.1
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• pp.117-123
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• 2012

The purpose of this study is to design and develop the e-mentoring system which supports the effective information education and to evaluate the usability of the system. Through literature reviews of related studies, an effective e-mentoring performance model was drawn. An e-mentoring system was designed and developed based on the model. 237 middle school students who had participated in e-mentoring for the information education evaluated the usability of the system. As a result of it, the system was considered good in both category(supporting mentoring(M=3.63), technology(M=3.78). The means of subcategories of 'supporting mentoring'(instructional easiness, psychological safety, and adaptability) were scored 3.65, 3.30, 3.43 respectively. And means in the subcategories of 'technology'(usefulness, accuracy, and look & feel) were 3.90, 3.64, and 3.73. It can be concluded that the e-mentoring system developed in this study was effective in mentoring information education.

• Journal of the korean academy of Pediatric Dentistry
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• v.35 no.4
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• pp.700-708
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• 2008

The aim of this study was to recognize guardians' desire and awareness on sedation, and to guide guardians' satisfaction and cooperation. Followings are the conclusion : 1. Information supply about conscious sedation were restrictive and insufficient. 2. Both first-visit guardians and guardians of sedated patients were interested in decrease of dental fear. 3. Both first-visit guardians and guardians of sedated patients were satisfied with psychological improvement better than behavior improvement. Therefore, decrease of patients'ear and anxiety was essential. 4. Both first-visit guardians and guardians of sedated patients didn't recognize accurate safety of conscious sedation.

• Journal of Navigation and Port Research
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• v.42 no.3
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• pp.187-194
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• 2018

Aids to Navigation (AtoN) is a marine traffic safety facility used to facilitate the safe and efficient movement of shipping and enhance the protection of the marine environment by the regulations or guidelines of The International Association of Marine Aids to Navigation and Lighthouse Authorities (IALA). Our country is managing AtoN to provide consistent services for AtoN users, although an average of 141 AtoN accidents occur annually. An AtoN accident forces non-planned work on the managers to resort the function, and causes psychological anxiety for its users, ultimately resulting in economic losses. This study developed the Social Cost evaluation model of AtoN accidents. The model can be used to quantify the manager's economic activities related to the shutdown and recovery, as well as the cost associated with the inconvenience to AtoN users. The Social Cost evaluation model of AtoN accidents is proposed as the sum of the encounter cost, administration cost and risk cost.

• Journal of the Ergonomics Society of Korea
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• v.29 no.3
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• pp.311-320
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• 2010

This study aimed to examine the development and characteristics of the workers with upper limb musculoskeletal symptoms and disorders and to analyze the upper limb musculoskeletal symptoms and disorders for its relationship with the individual socio-demographic characteristics. This study investigated the effect on the limitations of physical activities using standardized surveillance tool and clinical diagnosis. Musculoskeletal symptoms and the limitations of physical activities were examined. The clinical diagnosis of musculoskeletal disorders were carried out by physical examination, radiological examination and electromyography-electroneuronography for 22 workers in kitchen hood assembly process and 50 workers in toggle process of leather product manufacturing. The proportion of workers with musculoskeletal disorders was higher and the DASH score was also statistically higher in female and aged workers with longer working hours, longer household working hours, less leisure/hobby activity and higher physical load. Physical activities component score increased in the following order: workers in normal health, workers with musculoskeletal symptoms, and workers with musculoskeletal disorders as clinically diagnosed. Score for each DASH component increased in the following order: sports/performing arts ability, social activities, specific physical functional activities, work or other regular daily activities, work ability, psychological activities, insomnia and upper limb symptoms. The overall and each component DASH scores were higher in workers with symptoms of status praesens and of more severity, and receiving medical intervention. Musculoskeletal symptoms and disorders are associated with individual socio-demographic characteristics, and DASH score for physical activities of upper limb was higher in workers with musculoskeletal disorders. Musculoskeletal symptoms and disorders have a remarkable epidemiological significance for physical activities, social activities, work or other regular daily activities, upper limb symptoms and insomnia, where work ability, sports/performing arts ability and preventive measure is needed.

• Proceedings of KOSOMES biannual meeting
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• 2007.11a
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• pp.139-144
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• 2007

The vibration generated on shipboard is very important because it is greatly affect on the comfortable mind of passenger and working conditions et crews. Shipboard vibration is closely concerned with the development of propulsion method tint is main engine to decide speed of ship. To make the propulsion power, the main engine of ship engine room have continuous explosion process, so the shipboard vibration is generated The physiological damage and psychological damage of human body have caused by the vibration et shipboard In the case of the human body is exposed to the shipboard vibration, the evaluation of human exposure to whole-body vibration is prescribed in ISO 6954: 2000(E). In this paper, to evaluate the shipboard working environment, the vibration levels of two kinds of ship onboard were measured and compared with engine rooms, engine control rooms and bridges by the regulation of ISO 6954: 2000(E)

• The Journal of the Convergence on Culture Technology
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• v.6 no.3
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• pp.57-65
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• 2020

This study is places importance on health and safety in the era of untact, non-face-to-face care areas are increasing. To find out the fun factors and the effect of immersion on use satisfaction of health application users. Through the first factor analysis, we found the fun and immersion elements(joyful, interest, social intercourse) of users. Secondly, we looked at the impact of fun factors and immersion on satisfaction (viral intention, continuity). Finally, we looked at whether the user's characteristics affect satisfaction. The impact on fun factors and satisfaction was different depending on gender, which are characteristics of health application users. Both men and women showed significant results in oral tradition of pleasure, and in the case of women, elements of joy and psychological compensation were found to affect the continuation of use. It is thought that it is important to consider this in terms of marketing so that the elements of enjoyment among the fun factors of users through health application can continuously affect the continuation of use or oral tradition.

• Spatial Information Research
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• v.18 no.4
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• pp.99-108
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• 2010

Space Syntax methodology can be quantitatively calculated spatial cognitive analysis by number of turns_ In the existing GIS-based spatial information service provide 'physical distance' due to the shortest distance as a priority. but pedestrians tends to choose the path with concerned a lot of emphasis of safety, more vitality way from the crime at night, traffic accidents, and comfort on a road. Human's 'psychological distance' may reflect the spatial information services and provided path should be. In this study, using GIS Road Data implements the axial map with idea of the linear simplification principles. Traditional axial map of the Space Syntax get the assumption from the actual traffic values by comparing the results of correlation relationship. Through these methods, the actual relationship between traffic and test values have the correlation value($R^2$= 0.5387) 50% level and was able to get the results.

• Korean Security Journal
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• no.14
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• pp.181-194
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• 2007

Social psychological suspense has been increased rapidly because of a lack of morality by individual personality and offense by dissatisfactory desire. To help safety area from the situation, a professional private security guard company is increased remarkably. Followed by data from the National Statistical Office, the security guard companies and the guards had been increased. In 1999, there were 994companies and 25,464 employees were registered but in 2004, there were 1,081companies and 35,876 employees were registered. Based on the data, Security guard becomes a popular career but we should consider that the service also has been improved. Dissatisfactory service could occur to a fastidious person. The purpose of this study is to become a trustful and respectful private guard's activity through analyze defective activities of private guards and matters of what the customer feels.

• Journal of the Institute of Electronics Engineers of Korea TE
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• v.42 no.4
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• pp.41-46
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• 2005

Acoustic problems in the environment have gained attention due to the noise and vibration contact often in industry as well as life on modem society. Noise is one of safety element in industry, this proves damaging to humans from both a physical and a psychological aspect and so drop working efficiency. Various noises are happened from machines of manufacturing process in PCB industry. This paper present a new approach for subband feedback Active Noise Control (ANC) using Mel scale for headset system in PCB industry. The proposed Mel scale subband algorithm had a performance advantage over the subband algorithm in the noise attenuation and convergence time.

• Journal of Broadcast Engineering
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• v.25 no.5
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• pp.734-741
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• 2020

This article proposes a new pedestrian avoidance algorithm for social robots that coexist and communicate with humans and do not induce stress caused by invasion of psychological safety distance(Social Distance). To redefine the pedestrian model, pedestrians are clustered according to the pedestrian's gait characteristics(straightness, speed) and a social distance is defined for each pedestrian cluster. After modeling pedestrians(obstacles) with the social distances, integrated navigation algorithm is completed by applying the newly defined pedestrian model to commercial obstacle avoidance and path planning algorithms. To show the effectiveness of the proposed algorithm, two commercial obstacle avoidance & path planning algorithms(the Dynamic Window Approach (DWA) algorithm and the Timed Elastic Bands (TEB) algorithm) are used. Four cases were experimented in applying and non-applying the new pedestrian model, respectively. Simulation results show that the proposed algorithm can significantly reduce the stress index of pedestrians without loss of traveling time.