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- 저자 : 尹善郁 (검색결과 6 건)
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MEMS 경사센서의 가시설 Monitoring 적용을 위한 실험적 연구
윤선욱(Youn, Seon Wook),서태석(Seo, Tae Seok),임홍철(Rhim, Hong Chul),이근우(Lee, Kun Woo) 한국구조물진단유지관리학회 2010 한국구조물진단학회 학술발표회논문집 Vol.2010 No.2
Recently, various smart sensors are used in measuring temporary retaining structures for real-time monitoring. MEMS means Micro-Electro-Mechanical System. Advantages of MEMS sensor are its small size, low cost, low power, and wireless communication capability. The purpose of this study is to verify the applicability of MEMS tiltmeter to the monitoring of structural movement.
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Soil-Nailing 흙막이 가시설 모니터링을 위한 자동계측 현장적용
윤선욱(Youn, Seon Wook),임홍철(Rhim, Hong Chul),이근우(Lee, Kun Woo) 한국구조물진단유지관리학회 2011 한국구조물진단학회 학술발표회논문집 Vol.15 No.1
Recently, the importance of safety management for earth retaining structure is being emphasized. Microelectromechanical system (MEMS) tilitmeter is installed on the surface of earth retaining structure for monitoring. The earth retaining is constructed by Soil-Nailling method. The purpose of this study is to verify the applicability of automatic MEMS tiltmeter system to the real-time monitoring of temporary retaining structure.
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윤선욱(Sun-Wook Youn),김창현(Chang-Hyun Kim),강병조(Byung-Jo Kang) 대한노인정신의학회 2002 노인정신의학 Vol.6 No.2
Objectives:Many recent studies of relationship between geriatric depression and changes in brain have examined the structural abnormalities in hippocampus. Using MRI, the hippocampal volumes of patients with major depression were measured and compared with control subjects for research of above relationship. Method:Fourteen patients (early-onset five, late-onset nine) with major depressive disorder based on DSM-IV and fourteen age-matched normal controls are included. Applying semiautomated computer program to MRI, we measured and compared the hippocampal volumes in two groups. Moreover we identified the laterality and the correlation of the volumes with age of onset, duration of education, numbers of psychiatric admission, duration of illness, MMSE scores at admission, and severity of depression. Result:No significant difference was observed between the hippocampal volumes of patients with major depressive disorder and those of control subjects. A significant correlation in patients was observed between duration of illness and left hippocampal volume to cerebral volume ratio. In early-onset depressed patients, left hippocampal volume was larger than in late-onset depressed patients and the positive correlation was observed between MMSE scores at admission and left hippocampal volume to cerebral volume ratio. In late-onset depressed patients, there was the negative correlation between numbers of psychiatric admission and MMSE scores at admission as well as and between cerebral volume and age of onset. Conclusion:Our study indicated no change in the volume of hippocampus among geriatric major depressive patients. So we suggest that more extensive and systematic studies for structural abnormality of hippocampus will be required. 목 적: 이전의 연구결과 주요우울장애 환자에서 동반하는 인지적 손상이 해마 병리와 연관된다고 한다. 최근 연구들은 성인과 노년기 우울장애 환자의 해마에서 구조적 이상을 보고하고 있다. 본 연구에서는 환자군과 대조군을 대상으로 또, 환자군을 조발군과 만발군으로 나누어 자기공명영상을 이용하여 해마 용적을 측정, 비교하였다. 방 법: DSM-Ⅳ에 의해 주요우울장애로 진단받은 50세이상의 환자 14명과 일반 대조군 14명이 포함되었다. 자기공명영상 자료에서 반자동화된 컴퓨터 프로그램을 이용하여 해마 용적을 측정하였다. 두 군간의 좌, 우 해마용적을 비교하고, 편측성을 조사하고 환자군에서 용적과 발병연령, 교육기간, 정신과 입원횟수, 이환기간, 입원시 MMSE점수, 질환의 심한 정도와의 상관관계를 조사하였다. 결 과: 환자군과 대조군의 해마 용적 사이에 유의한 차이는 없었고(좌 p=.948,우 p=.539), 조발 환자군내에서 좌측 해마가 더 큰 것으로 나타났으며, 환자군 전체에서 질병기간과 대뇌용적 사이, 이환기간과 대뇌용적에 대 한 좌측 해마용적비 사이, 발병연령과 대뇌용적에 대한 좌측 해마용적비가 의미있는 상관관계를 보였다. 조발환자군에서 입원시 MMSE 점수와 대뇌용적에 대한 좌측 해마용적비가 강한 상관관계를 가진 것으로 나타났다. 만발 환자군에서 정신과 입원횟수와 입원시 MMSE 점수, 정신과 입원횟수와 대뇌용적, 발병연령과 정신과 입원횟수가 상관관계를 나타냈다. 해마 용적과 다른 임상 인구학적 변인들간 유의한 상관관계는 없었다. 결 론: 본 연구에서는 노년기 주요우울장애 환자군에서 해마 용적의 변화를 발견하지는 못하였고 주요우울장애 환자군에서 해마 구조이상에 대한 큰 규모의 체계적인 연 구가 필요할 것으로 생각된다.
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李鎭友,尹善郁 東新大學校 工業技術硏究所 1998 工業技術硏究 Vol.4 No.-
Travel time, travel distance and travel cost what is called traffic-system-variable are important factors in the decision of intention of travel activity. It is true that these factors is major factor in decision of intention. But, Not only these factors but also various factors affect on the decision of intension of travel activity. In this study, twelve factors are considered to be effect factor of travel activity, and it's effect on the decision of intention of travel activity analyzed by principal component analysis. The results of this study are available in policy making of transportation demand management
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초경 시작 시기가 여성 정신분열병 환자의 병의 경과에 미치는 영향
김진훈,윤선욱,배명지,임선진,정은기,장동원 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.5
Objectives : The protective effects of estrogen against the development of schizophrenia have been investigated in various perspectives, Previous studies showed patients with earlier age of menarche had later onset of schizophrenia and less frequent admissions. This study was performed to evaluate the effect of the age of menarche on subsequent courses including hospitalizations, suicidal attempts, Physical harm to others, and psychotic symptoms in women with schizophrenia. Methods : Self-report menarche age, onset of psychotic symptoms, and clinical status were collected in a sample of 108 Premenopausal women with the diagnosis of schizophrenia. Results : There was significant correlation between the age of menarche and the frequency of admissions (r=.321, p=.006). Also, Patients with history of physical harms to others showed later age of menarche than those without (t=2.025, df=106, p=.045). Conclusion : In women with schizophrenia, the age of onset of menarche affects subsequent courses indicated by frequency of admissions and violent behaviors. It is suggested that identifying the age of menarche might be helpful to predict the courses in women with schizophrenia. Further investigations regarding the relationship between estrogen and the courses of Schizophrenia in women are needed.
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