Smartphone Adoption using Smartphone Use and Demographic Characteristics of Elderly

Wonkyoung Shin,Dongbeum Lee,Minyong Park 대한인간공학회 2012 大韓人間工學會誌 Vol.31 No.5

Objective: The purpose of this study was to investigate major factors influencing adoption of smartphone to promote its use by older adults. Background: Despite increasing proportion of elderly people and elderly market, the proportion of elderly smartphone user is still relatively small compared to whole smartphone users. Thus, we need to find out major factors influencing adoption of smartphone to increase proportion of elderly smartphone users. Method: Seven major factors were extracted from 36 survey questions using factor analysis. Regression analysis was also applied to determine specific factors affecting intention of use based on user versus non-user of smartphone, age, gender, and educational background. Results: As results of factor analysis and regression analysis, major factors influencing adoption of smartphone for elderly users were significantly different according to gender, age, educational background based on smartphone users or non-users. Conclusion: The result of this study identified major factors influencing adoption of smartphone for the elderly and provided basic information related to adoption of smartphone according to elderly people"s characteristics. Consequently, we can expect to reduce the information gap and to improve quality of life for the elderly. Application: The development and marketing strategy could be applied differently based on the factors influencing adoption of smartphone. It is also possible to develop a prediction model for smartphone adoption according to elderly users" characteristics.

Development of Emotion Recovery System for Preventing Cumulative Psychological Stress of Emotional Workers

Wonkyoung Shin,Bokyung Huh,Minyong Park 대한인간공학회 2017 대한인간공학회 학술대회논문집 Vol.2017 No.4

Objective: This study suggested emotion recovery system for recovering positive emotion of emotional workers without self-effort and verified effectiveness of the emotion recovery system. Background: As the proportion of the service industries and emotional workers increases, the seriousness of the psychological stress of the emotional workers has been raised and policies and studies are being carried out to prevent work-related psychological disease. Therefore, emotion recovery system was proposed for relieving cumulative psychological stress of emotional workers that can be caused by occupational diseases. Method: The system was designed to provide positive visual and auditory stimuli in order to recover positive emotion for emotional workers. Physiological signal (EEG, GSR, and SKT) of 20 subjects were measured to verify effectiveness of the system. Results: After using the emotion recovery system, the subjects’ emotions showed statistically significant positive changes through both subjective and objective evaluations. The results of this study were verified by the effectiveness of the system for inducing positive emotions and reducing negative emotions. Conclusion: Emotion recovery system can minimize the cumulative psychological stress by changing the emotional workers’ negative emotions to positive emotions. Application: The system is expected to be applicable to various environments (driving, customer-facing tasks, telephone services, etc.) where negative emotions can be easily induced from external stimuli.

Application of Well-balanced Work Scheduling for Prevention of Work-related Musculoskeletal Disorders in an Automotive Parts Assembly Line

Minyong Park,Wonkyoung Shin 대한인간공학회 2014 대한인간공학회 학술대회논문집 Vol.2014 No.5

Well-balanced work scheduling was developed and applied for preventing work-related musculoskeletal disorders (WMSDs) in an automotive parts assembly line. In general, workers are shifted 4 or 5 times a day regularly, but there is no reasonable way to determine work order considering workers’ physical stress. To provide work order reasonably, it should be avoided to concentrate physical stress on a specific body part continuously. Therefore, a coefficient of cumulative workload of a station (CCWS) was elicited by sum of multiplying frequency of physical stress on specific body parts and relative weighted value of each body parts. For this study, customized checklists were proposed by using items from various international safety and health-related organizations according to job demand and workplace conditions. Analytic hierarchy process (AHP) was also applied to carry out to get relative weighted values of each body parts using pairwise comparison depending on tasks. Consequently, combination of work order was determined by summing each CCWS of various work stations based on severity of physical stress during a single day; and rotation cycle (i.e., days) was determined by numbers of worker. For verifying this methodology, a case study was carried out through the example of an automotive parts assembly line with 10 different kinds of assembly work stations connected by a conveyor system and participating 12 female workers. AHP was carried out by 9 experts to get relative weighted values. In this case study, a software tool of well-balanced work scheduling was developed using JAVA 2.7 for convenience and time-saving. By using this tool, the task manager(s) of the manufacturer will be able to generate work schedules very easily and quickly as well as reasonably, just by inputting the frequency of physical stress on a specific body part and relative weighted values derived by expert evaluation for each body parts. The result of this study may help workers have higher satisfaction in shifting work because they were provided well-balanced work scheduling based on their severity of physical stress, which leads to prevent WMSDs. Higher productivity is also expected because of improved workers’ satisfaction and safety.

한국 노인주택에서의 유니버설 디자인 적용을 위한 기초 연구

황원경(Hwnag, WonKyoung),신경주(Shin, KyungJoo) 한국노년학회 2000 한국노년학 Vol.20 No.3

본 연구의 목적은 한국에서의 노인주택 내 유니버설 디자인 적용에 앞서 적용방향을 설정할 수 있는 기초자료를 제공하는데 있다. 우선 한국의 상황을 파악하기 위하여 한국과 미국의 유니버설 디자인 관련법과 시행규칙을 비교하고, 다음으로 미국에서의 주택 내 유니버설 디자인 적용내용을 분석하여 세부항목과 가장 중요시되고 있는 점을 살펴보고자 한다. 이를 통하여 앞으로 한국에서 유니버설 디자인 적용내용을 제시하고, 보완해야 할 점을 파악할 수 있는 자료를 제공하고자 한다. 연구방법으로는 문헌조사법을 실시하였다. 조사결과로는 한국과 미국의 유니버설 디자인 관련법과 시행규칙을 비교하였고, 다음으로는 미국의 주택내에서의 유니버설 디자인 적용내용을 사례분석하였다. 마지막으로 미국 주택에서의 유니버설 디자인 적용사례의 분석을 통하여 한국에서 적용할 방향을 분석하였는데, 그 결과 주택전반에 있어서는 기본적 접근성이 가장 많이 나타났으며, 다음으로 작업 접근성에 관한 내용이었다. 기본적 접근성의 내용은 충분한 활동 공간확보, 가정기기의 조절기는 전면에 설치할 것, 레버식 손잡이, 낮은 문지방 등의 내용이었고, 작업 접근성에는 작업대 아래의 무릎에 들어갈 공간 확보, 높이가 조절되는 작업대 등의 적용사례가 나타났다. 전반적인 적용사례에 대한 분석에 이어, 주택내 각 실에서의 적용내용을 보면, 유니버설 디자인적 특성을 가장 많이 적용하고 있는 공간은 부엌이었으며, 다음으로 욕실이었다. 이는 물과 불을 사용하는 공간으로 사고의 위험성이 많은 공간이며, 또한 인간의 기본적인 욕구를 해결하기 위한 공간이기 때문에 노인을 위한 접근성에 대하여 가장 크게 고려해야 하기 때문이라 사료된다. The current research is aimed at providing the preliminary information in applying universal design to the Korean Housing Systems. The report was performed through extensive literature survey. The detailed issues include the relevant laws and administration regulations of Korea and US in universal design. Subsequently, the case studies in US are also included for the report Up to now, the relevant laws and administration regulations in UD were compared and the detailed applications were discussed. First of all, the laws for handicapped people was investigated as a relevant law of UD. In Korea, the eligibility is rather broad but the actual enforcement is somehow weak. In particular, the legal administration of UD in housing is not guaranteed and so, the complementary measure is required. The application direction of UD to the Korean housing was discussed through the case studies of UD in US. The basic accessibility features was found to be stressed most. The accessible work surfaces are found to be the second in the application of UD. The basic accessibility features includes ample clear floor space, lever hardware on doors, and so on. Through the general analyses, the kitchen are stressed most importantly. The bathrooms, entrance halls, bedrooms, laundry rooms, etc are treated significantly in the listed order.