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Seong-Yong Yoon(윤성용),Frederic Barlat 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
In this work, a new strategy to integrate stress without an iterative root-finding process is introduced using a generalized form of the effective plastic strain increment for the purpose of reducing the computational cost of FE-simulations where advanced theoretical plasticity models are implemented. The accuracy and robustness of the method are validated through material anisotropy prediction at a variety of time increments by implementing anisotropic yield functions into the finite element framework. The results of the current method are compared to that of the Euler backward and analytical methods. Moreover, the earing prediction quality after a cup drawing FE-simulation and the associated computational efficiency are comparatively studied.
참여형 개선기법(PAOT)의 원리를 적용한 대사증후군 관리 프로그램 효과분석
윤성용(Seong-Yong Yoon),우극현(Kuck-Hyeun Woo),김화성(Hwa-Sung Kim),김용배(Yong-Bae Kim),김진석(Jin-Seok Kim),조성용(Seong-Yong Jo),이성수(Sung-Soo Lee) 한국보건교육건강증진학회 2014 보건교육건강증진학회지 Vol.31 No.5
Objectives: The purpose of this study was to apply participatory action-oriented training (PAOT) principle for the management of metabolic syndrome and to assess its effectiveness in the workplace. Methods: The metabolic syndrome management program applying participatory action-oriented training (PAOT) principle is constructed action checklist, Group discussion, self-creation of an action plan, after 3 months, 6 months, 1 year, the practice carried out check up and encourage practice activity. Results: The seventy-seven workers who participated in the metabolic syndrome management program made a total of 246 action plans, 3.8 action plans per person and 234 action plans were achieved after one year, so that 81.0% of action plans have been achieved. After 1 year, in the intervention group, systolic blood pressure (SBP) and diastolic blood pressure (DBP), body mass index (BMI), the risk factors score decreased statistically significant, and metabolic syndrome prevalence decreased 54.8%. whereas the control group also showed a significant decreased in the mean systolic and diastolic blood pressure, the risk factors score. but, low-density lipoprotein (LDL) was significantly increased. Conclusions: To improve the effectiveness of metabolic syndrome management program applying participatory action-oriented training (PAOT) principle, the need to continues implementing programs and analysis of the long-term effects are required. Participatory action-oriented training (PAOT) principle can applying without cost and time, the human burden for the prevention and management of chronic diseases such as metabolic syndrome.
윤성용 ( Seong Yong Yoon ),이재국 ( Jae Gook Lee ),류시원 ( See Won Ryu ) 한국병원경영학회 2010 병원경영학회지 Vol.15 No.4
Objectives: This study was supposed to investigate factors which influence to preference of medical tourism products of Japanese tourists in Seoul, Korea. Methods: Data were collected from 228 Japanese tourists who visited `Seoul Center for Culture & Tourism` in Myeong-dong, Seoul, Korea. We measured factors which influence to preference for medical tourism. The data were analyzed by T-test, ANOVA, and multiple regression analysis. Results: The major findings were as follows; Japanese tourists preferred medical products in the order of skin care, oriental medicine treatment, health screening, and scaling & teeth whitening. They considered technical level of medical staff most importantly, followed by safety of medical products, communication during diagnosis and treatment, follow-up service, modernization of medical facilities and equipment, and the reasonable medical expenses. Japanese tourists` preferred medical institutions in the order of a university hospital, a specialty clinic, a special hospital, They said they intend to pay 50,000 to 150,000 yen for medical tourism. The preference to medical tourism products are that single women group in their twenties and thirties for skin care, married people group aged over thirties preferred oriental medicine treatment, and married men aged over forties and high income earners favored health screening. Conclusions: It should be considered carefully that the preference exists on some factors especially for Japanese tourist. Further research about preference on medical tourism products for tourists from the other countries is required appropriately to fulfill the needs.
김순신,우극현,윤성용,임현술,김근배,유승도,조용성,이석용,이현수,양원호,Kim, Sunshin,Woo, Kuck-Hyeun,Yoon, Seong-Yong,Lim, Hyun-Sul,Kim, Geun-Bae,Yu, Seung-Do,Cho, Yong-Sung,Lee, Seokyong,Lee, Hyunsu,Yang, Wonho 한국환경보건학회 2015 한국환경보건학회지 Vol.41 No.1
Objectives: The purpose of this study was to propose an indirect exposure assessment method using a questionnaire survey at a time when direct exposure assessment would be impossible after a chemical accident. Methods: About two weeks after an accident, a questionnaire survey was performed with 1,264 persons from the local community. Variables related to exposure were extracted from the survey contents, weighted and then graded for comparison with subjective symptoms in order to evaluate the extent of exposure. Survey items suitable for reflecting the previous exposure level during the accident were extracted, weighted and divided into quartile ranges. Subjective symptoms showed an increasing tendency with higher exposure level when compared with final exposure level (p<0.01). Results: For the relationship between the final exposure grade and subjective symptoms, as the exposure grade was increasing the rates complaining of symptom also showed an increasing tendency. However, when adjusted for demographic characteristics, there was a tendency for the eye irritation symptom to appear higher in women, and respiratory organ irritation appeared higher in smokers. Conclusions: When the problem of recall bias is considered, this study may not have completely unraveled exposure and the characteristics of the participants can affect subjective symptoms. Nevertheless, the exposure rating method of using a questionnaire showed a significant relationship with symptom level. It can be deemed that assessment of past exposure may be successfully evaluated by questionnaire in cases such as chemical accidents.
국내외 농업인 천식 및 만성 폐쇄성 폐질환에 관한 고찰
김시영(Siyoung Kim),윤성용(Seongyong Yoon),김진석(Jinseok Kim),조성용(Seong-yong Cho),박현우(Hyun Woo Park),김대환(Daehwan Kim),김가영(Gayoung Kim),강지수(Jisoo Kang),김경수(Kyungsu Kim),최동필(Dongphil Choi),유석주(Seok-Ju Yoo) 한국농촌의학 지역보건학회 2023 농촌의학·지역보건 Vol.48 No.4
본 연구는 국내 농업인의 천식 및 만성 폐쇄성 폐질환을 파악하기 위해「농업인의 업무상 질병 및 손상조사」를 조사하였다. 관련된 국내연구 자료가 미비하여 국외 농업인의 천식 및 만성폐쇄성 폐질환 연구결과를 찾아보았고, 그 결과. 국내 농업인들의 천식 및 만성 폐쇄성 폐질환 유병률은 국외 연구 결과들보다 낮게 나타났다. 실제 국내 농업인의 호흡기 질환 유병률은 더 높을 수 있으므로, 추가적인 연구가 필요하고, 호흡기 질환 예방대책이 마련되어야 한다. Objective: Farmers are known to have high prevalence of asthma and chronic obstructive pulmonary disease(COPD). This study aims to investigate the current status of asthma and COPD in domestic and foreign farmers with the ultimate goal of raising awareness of asthma and COPD among farmers and contribute to supporting evidence for the prevention of respiratory diseases in farmers. Methods: The study utilized data from the Farmer’s Occupational Disease Survey, conducted by the Rural Development Administration, to determine the prevalence of respiratory diseases in domestic farmers. The prevalence of asthma and COPD in overseas farmers was evaluated by researching other foreign studies and articles. Results: The prevalence of asthma and COPD in domestic farmers was less than of foreign farmers’. The prevalence of asthma in domestic farmers was high as upto 8.4% and COPD upto 5.5%. Studies from Europe and America showed prevalence of asthma in farmers high as upto 14.8% and COPD upto 17.1%. Conclusions: This study conducted an investigation using the Survey on Occupational Diseases and Injuries in Farmers to understand the current status of asthma and COPD in domestic farmers. Due to a lack of relevant domestic research, we examined and compared with the research results on asthma and COPD among overseas farmers. Further research is necessary and preventive measures for respiratory diseases need to be developed.
건강한 농촌마을 가꾸기를 위한 참여형 마을지도 그리기 교육기법의 개발과 적용
김진석(Jin-Seok Kim),윤성용(Seong-Yong Yoon),조성용(Seong-Yong Jo),김주안(Joo-Ahn Kim),조서현(Seo-Hyeon Jo),차혜지(Hea-Ji Cha),박기수(Ki-Soo Park) 한국보건교육건강증진학회 2012 보건교육건강증진학회지 Vol.29 No.5
Objectives: We used participatory mapping as a tool for empowerment training for promoting health and safety of farmers. We would like to introduce the application of participatory mapping method and report our experiences in a rural community in Korea. Methods: A one-day workshop was offered in six rural villages which were designated as ‘safe farm zones’. Each workshop started with an orientation session, followed by a village rounding, presentations of best cases, a group exercise to draw and present a healthy village map. Participants were requested to express their ideas and experiences about healthy and safe residential and working environments on their map. Results: A total of 206 farmers(100 male, 106 female) participated in the workshops. In each workshop, an average of 34.3 farmers participated, and their mean age was 59 years. In the six workshops, the participants proposed a total of 137 action plans. The action plans included improvement of co-working condition, building facilities for recreation, improving traffic safety measures, and improving residential environment. Conclusions: Participatory mapping was successfully developed and applied as a tool for empowering Korean farmers. The participants were able to express their ideas and thoughts about healthy and safe village and action plans on the map. Moreover, some of the actions in the action plans were carried out immediately after workshop.