• 대한통합의학회지
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• 제7권3호
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• pp.85-94
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• 2019

Purpose: The purpose of this study was to observe the degree of mask contamination in dental hygienist for general and oral bacteria and to identify areas of mask contamination after treatment. Methods: Masks were collected with every fifty dental hygienists who currently working in the department of preventive dentistry, prosthodontics, and orthodontics in Busan. The mask bacteria were collected in specific upper and side parts of the mask. Hand germs were collected using sterile cotton swabs, and then placed in a sterile conical tube. These were transferred to the laboratory. Hand germs and mask bacteria were incubated with nutrient broth (NB) and brain heart infusion broth (BHI) for 24 hrs and each cultured with NB and BHI plate at $37^{\circ}C$ for 48 hrs. Collected data were analyzed using the SPSS Window 20. Results: The number of bacteria was observed in the order of the department of preventive dentistry ($10.1{\times}10^5CFU/ml$), prosthodontics ($14.7{\times}10^5CFU/ml$), and orthodontics ($23.3{\times}10^5CFU/ml$) in the hand. In general bacteria, the difference of contamination was seen by the parts of the mask, but there was no significant difference. However, the oral bacteria were observed highly contaminated upper part of the mask in preventive dentistry. The mask contamination according to the medical departments was observed. Especially, the contamination of mask in preventive dentistry was significantly higher than other departments in oral bacteria. Conclusion: This study suggested that correct mask replacement and recognition of contamination areas can contribute to the prevention of infectious disease. and it would be necessary to increase hand hygiene performance to prevent cross-infection with masks. Also, this study may give an idea for making guidelines for mask management and supporting to establish clear criteria for the education program of personal protective equipment.

• 한국자연치유학회지
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• 제10권1호
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• pp.56-65
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• 2021

목적: 본 연구는 아유르베다 사상을 통해 현대 서양 과학과 철학의 한계의 원인을 고찰하고, 치유사업 발전을 위한 홀리즘의 길을 모색하고자 하였다. 이에 현대 서양 문명이 오늘의 한계에 이르게 된 배경과 치유사업의 현실이 그맥을 함께 할 것이라 추론하였다. 방법: 이를 살펴보기 위해 동서양의 '몸과 마음에 대한 인식'의 차이와 '존재의 근원에 대한 관점'의 차이를 살펴보고 이에 따른 아유르베다 5원소설의 특징을 살펴보았다. 결과: 그 과정을 통해 서양의 '심신이원론'과 서양 4원소설에서의 '공(空)요소'의 부재'를 한계의 원인으로 지목하게 되었다. '공(空)요소'가 보이지 않는 세계, 비물질의 세계라는 점에서 공의 부재가 서양 문명의 한계인 동시에 국가 치유사업 현실의 문제라고 결론짓게 되었다. 결론: 본 연구가 아유르베다 사상의 지속적인 연구와 자연치유 분야의 연구로 이어져 치유사업의 발전의 기초정보가 되고, 국민의 건강과 웰빙·자기치유를 기대하여 본다.

• 농촌계획
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• 제29권1호
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• pp.29-35
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• 2023

Although Due to industrial development and urbanization, the number of schools closing due to a decrease in the school-age population is increasing due to the phenomenon of relocation from farming and fishing villages. Closing schools are used as social and cultural facilities, or they are used to generate income by providing education and experiences. Agro-healing is an activity that promotes psychological, social, and physical health by using rural resources. By reflecting the Agro-healing in the services operated by the closed school, the perception of the provision of the Agro-healing service was investigated as a way to provide a therapeutic service to visitors and to increase the utilization of the closed school. The questionnaire consisted of 10 questions, a total of 5 questions related to demographic information, a total of 5 questions related to the perception of agro-healing activities in closed school facilities. As a result, 347 people participated in the survey. The higher the awareness of agro-healing, the need for a agro-healing expert, the satisfaction with the use of rural closed school facilities, and the willingness to participate in agro-healing activities, the higher the awareness that the provision of agro-healing services was necessary by the state. Theses results are expected to be useful as basic to data to solve the diverse limitation in rural closed school and agro-healing activities.

• 대한가정학회지
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• 제45권1호
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• pp.9-21
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• 2007

This research investigated the retired elderly who had moved to rural areas. The propose of the study was to examine the point at which there must be a difference in the patterns of a return to farming and determine the actual condition of their preparations for migration. This study had surveyed 408 seniors who wereare over 50 years old and had moved to rural areas after their retirement and analyzed the data by the SPSS PC 11.0 program. The results were as follows. First, the relevancy of U-turn, J-turn, and I-turn types that were affected by social demography was found to be dependent on their education levels and family patterns. Second, the actual conditions of the process of preparation by the types of a return to the farming were different according to the motivation and preparation fund. Nevertheless, the most important factor was the influence of their spouses. Third, the actual conditions of the process of adaptation by the patterns of a return to the farming showed no difference between the degree of efforts of the social supportand elevation of the friendship among the neighbors. The recognition of rural life problems were more acquainted towards the area of farming life. Among the 6 problem areas, leisure, health care, and economic problems were highly considered.

• 인간식물환경학회지
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• 제21권6호
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• pp.445-460
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• 2018

Exposure to indoor air pollution is an emerging world-wide problem, with growing evidence that it is a major cause of morbidity worldwide. Whilst most indoor air pollutants are of outdoor origin, these combine with a range of indoor sourced pollutants that may lead to high pollutant levels indoors. The pollutants of greatest concern are volatile organic compounds (VOCs) and particulate matter (PM), both of which are associated with a range of serious health problems. Whilst current buildings usually use ventilation with outdoor air to remove these pollutants, botanical systems are gaining recognition as an effective alternative. Whilst many years research has shown that traditional potted plants and their substrates are capable of removing VOCs effectively, they are inefficient at removing PM, and are limited in their pollutant removal rates by the need for pollutants to diffuse to the active pollutant removal components of these systems. Active botanical biofiltration, using green wall systems combined with mechanical fans to increase pollutant exposure to the plants and substrate, show greatly increased rates of pollutant removal for both VOCs, PM and also carbon dioxide ($CO_2$). A developing body of research indicates that these systems can outperform existing technologies for indoor air pollutant removal, although further research is required before their use will become widespread. Whilst it is known that plant species selection and substrate characteristics can affect the performance of active botanical systems, optimal characteristics are yet to be identified. Once this research has been completed, it is proposed that active botanical biofiltration will provide a cheap and low energy use alternative to mechanical ventilations systems for the maintenance of indoor environmental quality.

• Smart Structures and Systems
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• 제31권5호
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• pp.469-483
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• 2023

The dynamic characteristics of wind turbine blades are usually monitored by contact sensors with the disadvantages of high cost, difficult installation, easy damage to the structure, and difficult signal transmission. In view of the above problems, based on computer vision technology and the improved YOLOv5 (You Only Look Once v5) deep learning model, a non-contact dynamic characteristic monitoring method for wind turbine blade is proposed. First, the original YOLOv5l model of the CSP (Cross Stage Partial) structure is improved by introducing the CSP2_2 structure, which reduce the number of residual components to better the network training speed. On this basis, combined with the Deep sort algorithm, the accuracy of structural displacement monitoring is mended. Secondly, for the disadvantage that the deep learning sample dataset is difficult to collect, the blender software is used to model the wind turbine structure with conditions, illuminations and other practical engineering similar environments changed. In addition, incorporated with the image expansion technology, a modeling-based dataset augmentation method is proposed. Finally, the feasibility of the proposed algorithm is verified by experiments followed by the analytical procedure about the influence of YOLOv5 models, lighting conditions and angles on the recognition results. The results show that the improved YOLOv5 deep learning model not only perform well compared with many other YOLOv5 models, but also has high accuracy in vibration monitoring in different environments. The method can accurately identify the dynamic characteristics of wind turbine blades, and therefore can provide a reference for evaluating the condition of wind turbine blades.

• 디자인학연구
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• 18호
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• pp.177-186
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• 1996

국민들의 생활수준 향상에 따른 생활패턴의 변화와 더불어 환경오염 문제가 날로 심각해져 가고 있다. 각종 폐기물의 급증으로 파괴되는 환경의 보전을 도모하기 이해 자원의 절약과 재활용 촉진이 불가피하게 되었다. 이러한 환경문제에 대한 인식과 더불어 국민들의 건강, 환경문제에 대한 인식이 점차 강화되고 무공해에 대한 갈망이 환경상품에 대한 욕구로 대체되어 환경소비주의를 대두시켰다. 음료자동판매기는 일회용 용기를 주로 사용하므로 환경문제와 밀접한 관계를 맺고 있고 따라서 그린디자인이 적용되어야만 하는 제품이다. 본 연구에서는 그린디자인의 배경 및 개념과 음료자동판매기의 분류, 구조 및 환경에 대해 조사하였다. 그것을 배경으로 하여 음료자동판매기의 그린디자인 전개방향에 대한 컨셉을 설정하였고 대안들을 분리수거형과 재사용형으로 선정하였다. 대안들을 다시 벽면부착형, 중앙설치형 및 데스크탑형의 셋 방향으로 포커스 모델을 제시하였다. 결론적으로 음료자동판매기의 디자인을 위해서는 환경 문제 해결을 위한 그린디자인, 사용 성을 높이기 위한 인간 공학적 배려와 주변환경과의 조화를 위한 조형이미지 등에 대한 연구가 필요하다.

• 대한한방소아과학회지
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• 제25권1호
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• pp.119-127
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• 2011

Objectives: The purpose of this study is to evaluate the parents' awareness on the oriental medical treatment and their expectation on children's growth. Methods: The survey was conducted on 78 Health Kids Fair visitors, and 87 children's height and weight were measured in this study. Results: 1. Compare to other treatment, 62.82% of the parents responded that herbal medicine is relatively effective in treating weakness, followed by 'Allergic disease'(46.15%) 'Growth disturbance'(26.92%) 'Obesity'(26.92%) 'Respiratory disease'(26.92%) 'Digestive disease'(19.23%) 'Precocious puberty'(8.97%) 'Neurologic & psychologic disease'(6.41%) 'Urogenital disease'(3.85%). 2. Parents recognize that 'Oriental medicine have an effect on children's height mostly'(25.64%) 'Oriental medicine have an effect on children's height partially'(64.10%) 'Oriental medicine have no effect on children's height'(10.26%) 25.64% of the parents responded that herbal medicine would be helpful in increasing height, 64.10% of the parents said they would be helpful to the certain extent, and 10.26% said they would not play any roles. 3. Expected average weight, height, and BMI score for the boys were 71.8kg, 179.6cm and 22.10. For the girls, however, they were 53.4kg, 168.7, and 18.74. 4. Survey on parents' awareness on benefits of different treatments for challenged growth, Herbal medicine'(48.72%) 'Acupuncture'(7.69%), 'Moxibustion'(3.85%), 'Electronic acupuncture and Aqua acupuncture'(1.28%), 'Massage on acupuncture point'(19.23%), 'Consultation of eating habits'(61.54%), 'Consultation of exercise'(47.44%) were measured. Conclusions: Considering the collected results, we realized that the parents' expected height on their children was, in fact, higher than the standard height. In addition, for treatments for their children's growth improvement, parents expected that 'Herbal madicine' 'Massage on acupuncture point' 'Consultation of eating habits' 'Consultation of exercise would be beneficial.

• 한국환경과학회지
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• 제27권7호
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• pp.519-529
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• 2018

With rapid economic growth, the urban environment has created a problem of human physical and mental illness. In order to solve these problems, urban forests have emerged as a way to mitigate the environmental risks through improving the polluted environment of the city and improve the quality of life. As the urban forests have expanded, the school forests movement has also been taking an important place recently. The study focused on the performance of school forests by comparing the perceptions among teachers and students about their functions. The questionnaire was composed of 4 questions concerning human matters, 10 questions for space recognition, 4 questions for thermal environment, 2 questions for health promotion, and 20 total questions for composition of survey items. The reliability of the school forest function, number of tree planting areas and quantities, the harmony of the planting, and the satisfaction of the school forest were analyzed in the questionnaire conducted by the school members. Although it does not recognize school forests, it has a positive response to the green space that is built outdoors. It is considered that outdoor education and environmental education are sufficient in school forests and green spaces. The results showed that the outdoor green space was more satisfactory when compared with the general school. Teachers and students' preferences were similar to 'seasonal changes' and' trees of various colors and shapes'. The reliability analysis between each item shows that the coefficient for cronbach's ${\alpha}$ was .700 to .834. The purpose of this study is to identify the perception of forest function among school forest members and to utilize them as a basic data in the future.

• 가족자원경영과 정책
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• 제11권3호
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• pp.45-65
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• 2007

The purpose of this study was to analyze the life satisfaction of a single household head. This study examined the life satisfaction level of the single household head and analyzed the contributing factors. Data for this study were from the 7th KLIPS (7th Korea Labor and Income Panel Study), and the sample. consisted of 241 single household heads (including 83 male household single heads and 158 female single household heads). The statistics used for the analysis were frequencies, percentile, means, standardization, ANOVA, and multiple regression. The results were as follows. First, 53% of the household heads were due to their spouses' death, 34% of the household heads were single due to divorce, and 13% were single for other reasons. The average age of a single household head was 51 years, and the average education level of a single household head was 9.7 years and 70% of the single household heads were employed. Approximately 46% of the single household heads lived in small-and medium-sized cities. Second, the level of satisfaction with income, leisure, and residence of the single household head was lower than the middle level (3.0 points), while the level of satisfaction with family relationships, relatives, and social relationships was higher than the middle level (3.0 points). Third, there were differences in the life satisfaction level of single household heads in accordance with the single household head's marriage status, residence, recognition of health status, and current financial situation. Finally, significant variables contributing to the life satisfaction level of the single household head were gender, educational level, residence, monthly total income, satisfaction level of leisure, and family relationships. The most influential variable was the residence.