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박대옥,보비에트하이 한국도로학회 2013 한국도로학회 학술대회 발표논문 초록집 Vol.2013 No.09
전라북도 새만금 지역은 내부개발 공사로 인하여 많은 준설토가 발생되고 있으나 다짐에 적합하지 않고 건설재료로서도 적합하지 않아 폐기되는 경우가 많다. 본 연구에서는 준설토를 도로포장 노상층 재료로 재활용하기 위하여 준설토에 고화재인 시멘트와 기포 제(air foam agent)를 혼합하여 준설토 경량혼합토 배합설계를 개발하였으며. 다양한 시멘트양과 기포제 양을 이용하여 경량혼합토 시료를 제작하였다. 회복탄성계수를 구하기 위하여 AASHTO T 307법을 이용하여 경량혼합토 시료에 반복삼축하중을 재하하여 응력변형율을 측정하였다. 회복탄성계수 시험을 위하여 UTM 시험기를 사용하여 구속압력과 축압력을 제하하였으며, 시료의 크기는 직경 100mm에 높이는 200mm로 제작하였다. 시멘트량과 기포제량에 따른 회복탄성계수의 변화를 분석하였다. 또한 기포제량 변화에 따른 전도율 변화를 분석하기 위하여 전도율 시험을 수행하였다. 회복탄성계수를 이용하여 역학경 험적 방법을 이용하여 포장의 공용성을 평가하였다. 회복탄성계수 시험 분석결과 시멘트량이 증가할수록 회복탄성계수는 증가하였으며, 동일한 시멘트량에 서는 기포제량이 증가할수록 회복탄성계수는 증가하였다. 공용성 분석결과 시멘트량이 15% 이상이고 기포제가 20%미만일 때 1백만 ESALs의 차량하중을 만족하는 것으로 나타났다.
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정진옥,김솔림,이복실,박대한 한국장애인개발원 2021 장애인복지연구 Vol.12 No.1
This study was designed to explore the mothersʼ perceptions of sexuality of their children with developmental disabilities. A phenomenological methodology was used to grasp the mothersʼ perceptions with the meaning of their experiences. 18 mothers having children with developmental disabilities were participated in the study. Individual and group in-depth interviews (face-to-face) with the participants were carried out to collect data. Hycnerʼs method was utilized to analyze the data. The mothersʼ perceptions of sexuality of their children with developmental disabilities were revealed as intimacy, which is achieved through personal relationships with others on the journey to their humanness(mature person)ʼ. The perception has evolved in the process of 4 steps are as follows. The childrenʼs feeling love and self-worth with their mothers caring: no boundary. The childrenʼs having sexual ethics and values in the separation and contact with their family: ambiguous boundary. The childrenʼs having regard and intimacy in the mutual relationship with people: partial boundary. The childrenʼs having mature attitudes in the extensive relationship of their social life: clear boundary. A professional training course for sexuality educators with the developmental disability, a support system for families with the developmental disability, an educational support system for students with developmental disabilities, a job support system for young adults with developmental disabilities, and developing a customized curriculum for family with the developmental disability were suggested. 본 연구는 발달장애인 자녀의 성에 대한 어머니의 인식을 탐색하기 위하여 실시하였다. 인식은 어머니들의 경험에 기반하여 파악하였으며, 연구방법은 질적연구인 현상학적 방법론을 적용하였다. 연구참여자는 발달장애인 자녀를 둔 13명의 어머니들이다. 자료 수집을 위해 개별심층면접을 실시하였으며, Hycner의 분석방법으로 분석하였다. 발달장애 자녀의 성에 대한 어머니의 인식은 ʻʻ인간되어감의 여정 안에서 관계맺기를 통해 성취하는 친밀감ʼʼ으로 조사되었다. 인식은 ʻ자녀가 어머니와의 돌봄과정에서 성취하는 사랑, 자기가치: 바운더리 없음ʼ, ʻ자녀가 가족과의 분리와 접촉관계에서 성취하는 성 윤리와 가치: 모호한 바운더리ʼ, ʻ자녀가 주변인과의 쌍방적 관계에서 성취하는 배려와 친밀감: 부분적 바운더리ʼ, ʻ자녀가 사회생활의 확장적 관계에서 성취하는 성숙한 태도: 명료한 바운더리ʼ로 분석되었다. 어머니가 인식하는 발달장애인 자녀의 성 핵심은 사람들과의 관계맺기와 친밀감이며 이는 다양한 수준의 바운더리(경계)를 성취하는 것임을 알 수 있다. 연구 결과에 기반하여 대인관계와 사회적 관계 중심의 교육, 주 양육자 대상의 교육컨텐츠 개발, 성교육 전문인력 양성, 소그룹 집중형 교육방식 등을 제언하였다.
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Development of Digital Contents for ADHD Treatment Specialized for VR-based Children
박대원,장춘옥 국제문화기술진흥원 2023 International Journal of Advanced Culture Technolo Vol.11 No.3
This study aimed to develop a VR-based digital therapeutic intervention for the diagnosis and treatment of ADHD. The research combined medical data with virtual reality technology to develop an algorithm for ADHD diagnostic scales and implemented a VR-based digital therapeutic platform using a head-mounted display (HMD). This platform can be used for the diagnosis and treatment of ADHD in children and adolescents. Additionally, we four VR games were developed, including archery timing, Antarctic exploration, grocery shopping, and rhythm-based drumming(RBD), incorporating various psychiatric treatment techniques based on cognitive-behavioral therapy(CBT). To evaluate the usability of this digital therapeutic intervention, a group of experts specialized in counseling psychology participated in the study. The evaluations received highly positive feedback regarding the ability to access the system menu while wearing the HMD, the consistency of terminology used in menus and icons, the usage of actual size for 3D graphic elements, and the support for shortcut key functionality. The assessments also indicated that the games could improve attention, working memory, and impulse control, suggesting potential therapeutic effects for ADHD. This intervention could provide a daily treatment method for families experiencing financial constraints that limit hospital-based therapies, thereby reducing the burden.
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대학 도서관 건물 리모델링에 따른 실내공기질 영향 평가
백성옥,박대권,박선영,이여진 한국대기환경학회 2006 한국대기환경학회지 Vol.22 No.6
Recently, there have been a large number of remodeling (or renovation) works in old buildings in urban areas. Compared to new buildings, environmental risk might be more significant in such buildings where remodeling works are going on, since some parts of the building may still be in service for people. This study was carried out to investigate the impacts of remodeling works on the indoor air quality (IAQ) of a large building (a 22 stories university library). Indoor air monitoring was conducted during and after the remodeling works every two weeks for a one year period, and target compounds included BTEX, styrene, TVOC, carbonyl compounds such as formaldehyde and acetaldehyde, CO, CO2, PM10, and PM2.5. Overall, the IAQ appeared to be recovered within two months after the remodeling works. However, in some places, concentrations of formaldehyde, toluene, xylene, and ethylbenzene showed higher levels even after works than those during the works. The results indicate that painting, glues and office furnitures are major sources of aromatic VOCs and formaldehyde. Therefore, in order to decrease the concentrations of toxic VOCs, the use of environmental-friendly building materials is strongly recommended during the remodeling works. In addition, IAQ control and management scheme (for example, baking the inside of the building) should be taken into consideration before reopening the buildings.
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백성옥,이여진,박대권 한국대기환경학회 2006 한국대기환경학회지 Vol.22 No.4
The air quality index (AQI) is an index for reporting daily or hourly air quality to the general public. The AQIfocuses on health effects that can happen within a few hours or days after breathing polluted air. Many countrieshave their own AQI reporting systems, and the HAEI(hourly air environment index) method is now being used inAQI, Canadian AQI, and Korean HAEI, to the same air quality data-base. The data-base was constructed from 10monitoring sites in Gyeong-buk province for the last four years since 2000. Based on the results, a criticalevaluation of the Korean HAEI method was made, and a number of suggestions and recommendations werepresented to improve the AQI reporting system in Korea.
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대기 중 다환방향족탄화수소 측정방법의 성능평가 - 하이볼륨 샘플링 및 GC/MS 분석방법을 대상으로
서영교,박대권,백성옥,Seo, Young-Kyo,Park, Dae-Kwon,Baek, Sung-Ok 한국환경보건학회 2009 한국환경보건학회지 Vol.35 No.4
In this study, a measurement method was evaluated for the determination of polycyclic aromatic hydrocarbons (PAHs) in the ambient atmosphere. PAHs were sampled by high-volume samplers, and were then analysed with a GC/MS system. Particulate PAHs were collected on $8"{\times}10"$ quartz fiber filter, while vapor phase PAHs were adsorbed on polyurethane foam (PUF). Target compounds included a total of 36 PAHs, which are known to be frequently detected in the urban atmosphere. It was not necessary to clean-up samples before samples were analyzed using GC/MS, and the overall performance of the method was tested by a variety of quality control and quality assurance schemes. It is generally known that the clean-up procedure can negatively affect the recovery of samples. Precision and accuracy was evaluated using SRM provided by US NIST, and the results were generally satisfactory and reliable. However, the GC/MS method appeared not to be adequate for 6-rings PAHs, such as coronene, due to its lower sensitivity. In addition, collection efficiencies for low molecular compounds, such as 2-rings PAHs, were poor because of the lower retention volume of the PUF adsorbent. As a result, it was concluded that the method based on high-volume sampling and GC/MS analysis can give very reliable data by simultaneous sampling of both particulate and vapor phases for 3-rings to 5-rings PAHs of environmental concern.
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