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BIM 기반의 준설매립전용 Library Browser 개발
이동윤(Dongyun Lee),이준호(Junho Lee),이상웅(Sangwoong Lee),최차석(Chaseok Choi),구본효(Bonhyo Gu) 한국지반환경공학회 2014 한국지반환경공학회논문집 Vol.15 No.3
본 연구에서는 준설매립분야의 설계자동화를 위하여 준설토 투기장 설계 시 고려되는 상부 및 하부 구조물을 대상으로 Library를 구축하고, 이를 통합?관리할 수 있는 브라우저를 개발하였다. 개발 Library는 주요 단면제원을 변수화하여 형상의 가변성확보가 가능한 파라메트릭 모델링 방법을 이용하여 작성하였으며, 작업환경에 맞게 표준횡단 및 패밀리 Library로 구분하여 작성하였다. 작성된 Library를 특성별로 구분하여 객체를 관리하고 BIM 기반 모델링 작업 시 객체의 적용이 간편하도록 C# 언어를 이용하여 브라우저를 개발하였다. 개발된 브라우저를 BIM 기반의 3차원 캐드 프로그램에 연동함으로써 간편하게 3차원 모델링, 도면작성 및 물량산출이 가능하고 신규 Library의 작성 및 관리 또한 가능하다. This study has been conducted to building a library intended for structures considered in the design of reclamation for design automation and developing browser for integrated management system. The library has been developed using a parametric modeling method capable of changing section shape, also classifying standard crossing and family library, has been developed according to the working environment. Classified library by the characteristics manages objects and working modeling on based BIM has been developed browser using the C# program for objects to use conveniently. By interworking between developed Browser and 3D Autocad based BIM, it is possible to use easily at design drafting, calculating quantities, developing a new library, and managing a library. The browser using effectively exclusive library to reclamation is developed in this study.
한국·태국 대학교 방사선학과 교과과정 비교를 통한 한국형 교과과정
이동윤(Lee Dongyun),이삼열(Lee Samyol),윤태형(Yoon Taehyeong) 한국방사선학회 2015 한국방사선학회 학술대회 논문집 Vol.2015 No.추계
본 연구는 1960년대 이후 괄목할만한 경제성장을 이룩하며 우수한 의료기술도입으로 양적·질적성장을 이어오고 있는 대한민국의 방사선학과와 1300만 달러 규모의 전 세계 의료관광시장을 선도하고 있는 태국 방사선학과의 교육과정을 비교해보고, 아시아 개발도상국의 방사선보건의료인력 양성교육을 이끌어나갈 수 있는 ‘수출형 방사선학과 교육과정 모델’을 개발·제시하고자 한다. 비교매체는 한국의 동서대학교 방사선학과와 태국 나레수안대학교의 Department of Radiological Technology 두 학교의 교과과정을 직접 비교하였으며, 아시아지역에 범용할 수 있는 교육과정에 어떤 항목 이 필수적인지, 선택적인지, 불필요한 것인지 결정하여 우수한 방사선사를 양성할 수 있는 최적의 모델을 찾는다. This study aspires to develop and present a 'Korean Curriculum Model' in Radiological Science(or Technology), which will be applied to developing countries located in Asia. Because Republic of Korea has grown one of a well developed country in Health Science and Thailand has also been occupying a good position in world's medical tourism market which is on thirteen-million dollars of scale. The ideal curriculum model made by comparing and contrasting those two countries' university. Department of Radiological Science in Dongseo University and Department of Radiological Technology in Naresuan University are the sample of this research and the major source of a wide use education system in Asia to train well-educated Radiological Technician.
측면 충돌 상해 경감을 위한 능/수동 복합 안전장치 연구
이동윤(Dongyun Lee),안창섭(Changsup Ahn),신중엽(Joongyub Shin) 한국자동차공학회 2023 한국자동차공학회 부문종합 학술대회 Vol.2023 No.5
The existing restraint system has been developed with passive method. Which is that airbag ECU detect the crash and send the signal to deploy airbag at crash. In addition to the traditional method, this study suggests more effective way to protect occupant by using ADAS sensor data according to ADAS technology improvement. RADAR/LIDAR can detect the distance, speed and direction of the object by measuring reflected wave. Through communication with RADAR/LIDAR, Airbag ECU can deploy side airbag in advance for occupant protection. As the result, the efficiency of airbag and space between occupant and vehicle is increased, occupant protection can be improved with pre-crash activation.
당뇨병을 가진 노인에서의 혈압과 인지기능 사이의 관련성
김봉조(Bong-Jo Kim),이소영(So-Young Lee),이소진(So-Jin Lee),차보석(Boseok Cha),이철순(Cheol-Soon Lee),박철수(Chul-Soo Park),제남주(Nam-Joo Je),서지영(Ji-Yeong Seo),이동윤(Dongyun Lee) 대한생물치료정신의학회 2015 생물치료정신의학 Vol.21 No.2
Objectives:The aim of this study was to investigate the relationship between blood pressure(BP) and cognitive function in the elderly with diabetes mellitus(DM). Methods:A total of 68 patients with DM aged 65≥ years were included in this cross-sectional study. Relationships between BP and cognitive function tests were determined using Spearman’s rank correlations and multiple regression models. Results:Higher diastolic BP(DBP) was associated with lower score on Mini-Mental State Examination(MMSE)(p=0.009), less verbal fluency test(p=0.007) and poorer digit span test(DST)(p=0.014). The relationship of verbal fluency test(VFT) and DBP was not attenuated after adjusting for covariates: age, gender, body mass index, depressive symptoms, education, duration of DM and quality of sleep in multivariable model. However, DBP could be predictor of MMSE and DST only after controlling for body mass index. Conclusion:The result of this study indicates that elevated DBP in elderly with DM were associated with poorer cognitive performance, particularly semantic memory. Also this study demonstrated that verbal fluency was related to DBP after multivariate adjustment. This study underlines the importance of cognitive evaluation in elderly DM patients, and suggests that a high DBP may have deleterious effects on cognitive functions.
농촌지역 독거노인의 사회적 지지 및 만성 의학적 질환이 우울증상에 미치는 영향
채철호(Cholho Chae),이상수(Sangsoo Lee),박철수(Chul-Soo Park),김봉조(Bong-Jo Kim),이철순(Cheol-Soon Lee),이소진(So-Jin Lee),이동윤(Dongyun Lee),서지영(Ji-Yeong Seo),안인영(In-Young Ahn),최재원(Jae-Won Choi),차보석(Boseok Cha) 대한생물치료정신의학회 2018 생물치료정신의학 Vol.24 No.3
Objectives:This study investigated the effects of social support and chronic medical conditions on depressive symptoms in elderly people living alone in a rural community. Methods:Sociodemographic information on 173 subjects aged 65 years or older who lived alone in a rural community and were recipients of National Basic Livelihood Security was collected and analyzed. All participants completed the Korean Form of the Geriatric Depression Scale and the Lubben Social Network Scale. Additionally, the current prevalence of chronic medical conditions that interfere with the activities of daily living was examined. Multiple logistic regression analysis was conducted to analyze the associations of social support and chronic medical conditions with depressive symptoms. Results:Social support(odds ratio: OR, 0.96; 95% confidence interval: 95% CI, 0.92-0.99) and chronic medical conditions(OR, 1.59; 95% CI, 1.23-2.05) were significantly associated with depressive symptoms in all subjects. When analyzed by gender, social support served as a protective factor against depressive symptoms in elderly men only(OR, 0.91; 95% CI, 0.83-0.99), and chronic medical conditions increased the risk of depressive symptoms in elderly women only(OR, 1.74; 95% CI, 1.26-2.40). Furthermore, osteoarthritis and lumbar pain were risk factors for depressive symptoms in all subjects(OR, 2.24; 95% CI, 1.10-4.56 and OR, 2.10; 95% CI, 1.08-4.12) and in elderly women(OR, 4.07; 95% CI, 1.68-9.84 and OR, 3.34; 95% CI, 1.47-7.57), respectively. Conclusion:This study indicates that improving the social support and managing the chronic medical conditions of elderly people living alone are important for the prevention of depression in this population. Additionally, the present results suggest that it is necessary to establish different depression-prevention strategies for elderly men and women living alone.
안인영(In-Young Ahn),이다원(Dawon Lee),박철수(Chul-Soo Park),김봉조(Bong-Jo Kim),이철순(Cheol-Soon Lee),차보석(Boseok Cha),이소진(So-Jin Lee),서지영(Ji-Yeong Seo),최재원(Jae-Won Choi),이동윤(Dongyun Lee) 대한생물치료정신의학회 2016 생물치료정신의학 Vol.22 No.2
Objectives:Diverse psychiatric symptoms and individual traits comprise risk factors of suicide ideation. The aim of this study was to investigate whether depressive symptoms and stress-related symptoms mediate between impulsivity and suicidal ideation. Methods:A total of 445 participants completed the Barratt Impulsiveness Scale-11-Revised Korean version(KBIS-11), Scale for Suicide ideation(SSI), Center for Epidemiological Studies-Depression Scale(CES-D), and Impact Event Scale-Revised Korean version(IES-R-K) before basic military training. Structural Equation Model(SEM) was used to determine integrated relationship between impulsivity, suicide ideation, depressive symptoms and stress-related symptoms. Results:SEM showed good model fit. The direct effect was 0.107(p<0.05) between impulsivity and suicide ideation; and the indirect effect was 0.199(p<0.01) between impulsivity and suicidal ideation through depressive symptoms and stress-related symptoms. Conclusion:The present study revealed a significant mediating effect between impulsivity and suicidal ideation through depressive symptoms and stress-related symptoms. The findings indicated that comprehensive assessment of impulsivity, depressive symptoms and stress-related symptoms are needed for evaluation of suicidal ideation.