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유리섬유복합소재를 이용한 지중매설형 승하강식 홍수방지 벽체구조물
윤영만 한국재난정보학회 2013 한국재난정보학회 논문집 Vol.9 No.4
제방 월류방지 대체공법으로 전도식, 부력식 홍수방지벽을 국내ㆍ외에서 개발하는 실정이다. 그러나, 사전점검 불가 및 유지관리 문제점이 있어 본 연구에서는 국내ㆍ외 최초로 경량 재질이면서 강도가 우수한 유리섬유복합소재를 이용한 승하강식 홍수방지 벽체구조물을 연구ㆍ개발하였다. 개발된 홍수방지 벽체구조물은 수치해석을 통해 구조적 안정성과 함께 현장 적용성을 제시하여 공사비를 약 87%~95%로 감소시키고 벽체구조물 내부에 고무지수부재를 설치하여 차수성이 확보되는 것을 확인하였다.
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윤영만,박현태,김연중,한혜성 한국농촌경제연구원 2012 농촌경제 Vol.35 No.4
This study conducted a case study analyzing the cost and benefits of biogas plants that use livestock manure to produce biogas. The purpose was to review the possibility of expanding the facilities across the country. According to the analysis results, it was found that in most cases economic viability would be very low if the revenue is earned through the selling of surplus electricity only. If we consider the sales revenue from surplus power as the direct benefit (Scenario 1), the compensation rate would be 24.8% of total facility cost. However, in Scenario 2 where we consider private investment as the only cost, the compensation rate would be 34.0% of the total cost. It was found that if indirect benefit is taken into account, only the biogas facility in Jeju Island would generate an economic benefit of 381 won/㎥. In the cost analysis of private investment, it was estimated that the economic benefit of the biogas plants would be 2,565~4,809 won/㎥, that is, excluding two plants in Suncheon and Changnyeong that are built with private investment only and another two plants in Anseong that are built for experimental purpose only. Therefore, in order to improve the economic viability of manure biogas plants, government support is needed more than anything else to share the initial facility cost.
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윤영만 한국재난정보학회 2017 한국재난정보학회 논문집 Vol.13 No.4
For the bridges managed by the municipalities, there is a need for a maintenance management system for the municipal governments for the scientific and systematic maintenance standard and the scientificization of the budget acquisition and execution through the quantified data base. The purpose of this study is to develop a system for efficient management of small bridgies maintained by the municipality and use ICT convergence technology such as BIM / GIS technology. The details of the system development include the development of the small bridgies maintenance program for mobile devices, the development of the small bridgies maintenance database, the development of the small bridgies integration maintenance management, and the reliability of the program system developed by checking the construction and operation contents of the small bridgies test-bed. The developed program system is linked to the development of smart name plate and reader module of non - power system. 지자체에서 관리하는 교량에 대해서 과학적이고 체계적인 유지관리 표준안과 정량화된 데이터기반을 통한 예산확보 및 집행의 과학화를 위해 지자체관리용 교량 유지관리시스템이 필요한 실정이다. 본 연구는 지자체에서 유지관리하고 있는 소규모 교량의 효율적인 관리를 위한 시스템 개발을 목표로 하며 BIM/GIS기술 등의 ICT융합기술을 사용하였다. 시스템개발의 세부내용으로는 모바일 기기용 소규모 교량 유지관리 프로그램 개발, 소규모 교량 유지관리 데이터베이스 개발, 소규모 교량 통합유지관리 개발이며 지자체에서 관리하는 소규모 교량의 테스트베드 구축 및 운영내용을 확인하여 개발한 프로그램 시스템의 신뢰성을 얻었다. 개발된 프로그램 시스템을 무전원방식의 교량 스마트 명판제작 및 Reader모듈 개발로 연계하였다.
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구강병으로 인한 학업손실실태와 그 연관요인에 관한 연구
윤영만,이흥수 원광대학교 치의학연구소 2002 圓光齒醫學 Vol.11 No.2
To prepare basic data for oral health promotion of elementary and middle school students through the survey of the status of school loss on account of oral diseases and the examination of the related factors, a questionnaire survey was conducted for 3,080 students. School loss was investigated based on the experiences of absences and leaving school early, which had happened from oral diseases. Also the restricted activities related with schoolwork such as dining and sleeping were surveyed. The independent variables were oral health behaviors and socioeconmic factors such as sex, age of their parents, education level of their fathers, family income. Factors related with school loss and the restricted activities were analyzed by the multiple logistic regression method. The results of this study were as follows. 1. The 2.37% of students were absent on account of oral disease at elementary and midlde school. Also, the annual average days of absence and early leaving school for elementary school students were 0.05, while the average days for middle school students were 0.07. 2. The rate of students' restricted activity were 39.1% at elementary school and 55.7% at middle school. 3. The elementary students whose mothers are employed showed higher probability of absence due to oral diseases than the students whose mothers are unemployed. 4. The elementary students who live in rural regions showed higher probability of absence and restricted activities on account of oral diseases than the students who live in urban regions. 5. School loss of middle school students was correlated to a load of schoolwork and score of schoolwork. 6. Middle school students who do not trust oral treatment showed higher probability to experience the restricted activities due to oral diseases than the students who trust in it.
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윤영만,유호천,김창현,최은희,윤성이,Yoon, Young-Man,Yoo, Ho-Chun,Kim, Chang-Hyun,Choi, Eun-Hee,Yoon, Sung-Yee 한국유기농업학회 2012 韓國有機農業學會誌 Vol.20 No.4
Based on the general policy called "Green Growth", the Korean government planed to establish a biomass town in South Korea in order to recover energy from organic waste and to substitute for fossil fuel at rural region. Technical and financial support for the establishment of biomass town was insufficient so far. There are some policies to support biomass town establishment, however financial support from several Korean ministries seemed not to have been used efficiently. Some policies are planned excessively so that they cannot be realized on time. Therefore, there is a need to analyze the status of biomass utilization technology and policy in Japan from the point of view of an external biomass expert, since biomass utilization technology and policy of Japan take good achievement during the many developed countries. For the analyzing of technology and policy in Japan, literatures concerned biomass management policy and biomass town design were collected by visiting Japan Ministry of Agriculture, Forestry and Fisheries and interview of public officials in charge was carried out. There are several implications for the promotion of Korean policy concerned with biomass utilization and biomass town establishment.
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