http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
시뮬레이션 프로그램을 이용한 신규 차량의 인테리어 물질에 따른 VOC와 폼알데히드의 농도 변화에 관한 연구
이영섭 ( Young Seop Yi ),김인범 ( In Bum Kim ),고원경 ( Won Kyoung Ko ) 한국안전학회(구-한국산업안전학회) 2012 한국안전학회지 Vol.27 No.3
The concentrations of Volatile Organic Compounds(VOCs) and Formaldehyde(HCHO) for interior materials of new vehicles are estimated and recognized by using the simulation program known as IAQx. The concentrations of contaminants are estimated and evaluated by the ventilation rates of new domestic vehicles and the required ventilation rates for new vehicles are estimated through the given contaminant data. This study is conducted to compare the ventilation rates for the contaminants between the discontinuously ventilated new vehicles and the continuously ventilated new vehicles using the simulation program. The equation of ventilation rate of new vehicles is acquired to be able to lower initial concentrations below the standard level under different conditions for both business and personal commuting
이영섭(Young-Seop Lee),이수묵(Sue-muk Yi),이덕진(Duck-jin Lee) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
시험용단자대(TTB : Terminal Test Block)는 계기용변성기(MOF)와 전력량계 사이에 조합 부설하여 정전 없이 전력량계를 시험하거나 교체할 때 사용하는 전력량계 부속장치로 고압으로 수전받는 설비에는 반드시 시설해야 하는 필수 기자재이다. 현행 단자대는 오결선 및 고장발생의 소지가 있고 가격도 비싼 단점이 있어 크기가 작고 결선이 간단하며 단순한 구조의 고압 전자식전력량계 무정전 교체단자대를 개발하였다. 새로이 개발한 단자대는 전력량계에 꽂음방식으로 설치하여 연결이 간편하고 오결선 발생의 소지가 없으며 전자부품을 사용하지 않아 고장이 없고 가격을 기존 제품에 비해 1/2 수준으로 대폭 낮출 수 있는 장점이 있으며 오결선 또는 고장발생으로 인한 불편을 해소할 수 있다.
고원경 ( Won Kyoung Ko ),이영섭 ( Young Seop Yi ),이준원 ( Jun Won Lee ),박종일 ( Jong Yil Park ) 한국안전학회(구 한국산업안전학회) 2014 한국안전학회지 Vol.29 No.5
More than 76% of occupational accidents occur in small and medium sized enterprises(SME) employing less than 50workers, due to the lack of safety and health systems, and carelessness of workers and owners. Timely Technical Guidance(TTG) project of Korea Occupational Safety & Heath Agency(KOSHA) for SME was initiated to analyze and inform accident causes just after accidents occur. Improvement direction of TTG project is suggested through situation and performance analysis on TTG services conducted in 2012. KOSHA provided TTS services on 15,571 SMEs(suffering at least one accident in 2012), through which the working day losses from recurrence resulted in 19.0%p, 14.5%p and 31.3%p decreases in manufacturing, services and construction businesses, respectively.
김완진 ( Wan Jin Kim ),이영섭 ( Young Seop Yi ),류근준 ( Keun Jun Ryu ),김현기 ( Hyun Ki Kim ) 한국안전학회 2009 한국안전학회지 Vol.24 No.4
PVC hose for gas is used widely in many of places which is used for connector between combustor and gas cock. In this study, it is collected by 5 regional area as Gyeonggi, Jeonnam, Gyeongbuk, Jeju and Gangwon and tested in leakage, hardness, anti-low temperature. As a result, the color on it is started to change rapidly when it is installed. Some of specimen are broken in bending test after keeping in -25℃,24hours. It`s hardness has a tendency to increase gradually. If hardness of hose is increased, PVC hose is separated easily from cock or combustor so that LP gas or city gas can be escaped. For prevention of gas leakage accidents of PVC hose, the available period of it should be presented.
박훈 ( Hoon Park ),박형기 ( Hyoung Ki Park ),석철기 ( Chul Gi Suk ),이영섭 ( Young Seop Yi ),가네꼬카츠히꼬 ( Katsuhiko Kaneko ) 대한화약발파공학회 2012 화약발파 Vol.30 No.1
구조물의 노후화와 기능성 상실에 따른 해체 수요가 증가하고 있으며, 다양한 해체 기술이 개발되어 왔다. 대규모 기초콘크리트의 경우에는 구조적 특성에 의한 일부 기계식 해체공법의 적용에 제한이 있으며,지반진동에 의한 주변 환경의 영향으로 최근에는 발파해체공법을 적용하거나 발파해체와 기계식 해체를 혼합한 공법을 적용하고 있다. 본 연구에서는 기초콘크리트 발파해체 설계 시 비장약량과 입지상수, 감쇄지수와의 관계식, 콘크리트의 평균 파쇄도와 비장약량과의 관계식을 통해 평균 파쇄도와 지반진동속도를 비교하였다. With the deterioration and functional loss of structures, there is an increasing demand for demolition and various demolition technologies have been developed. In case of a large-scale concrete foundation, application of some mechanical demolition techniques is limited because of the structural characteristics, and explosive demolition or explosive demolition combined with mechanical demolition is applied recently due to the effect to the surrounding environment by the ground vibration. In this study, we compared peak particle velocity of ground vibration depending on average fragment size in case of explosive demolition design for large-scale concrete foundation using the relation among specific charge, charge constant and transmitting medium constant as well as the relation between average concrete fragment size and specific charge.
김병욱(Byoung-Ug Kim),홍영균(Young-Kyun Hong),이영섭(Yeong-Seob Lee),양승표(Seung-Pyo Yang),현근우(Geun-Woo Hyun),이건호(Geon-Ho Yi) 한국환경보건학회 2021 한국환경보건학회지 Vol.47 No.3
Objectives: This study was conducted to identify the emissions characteristics of total particulate matter (TPM), fine dust (PM₁₀, PM₂.₅), and gaseous pollutants (SOx, NOx) in iron and steel manufacturing facilities in order to investigate emissions factors suitable for domestic conditions. Methods: Total particulate matter (TPM), fine dust (PM₁₀, PM₂.₅), and gas phase materials were investigated at the outlet of electric arc furnace facilities using a cyclone sampling machine and a gas analyzer. Results: The concentrations of TPM ranged from 1.64 to 3.14 mg/Sm³ and the average was 2.47 mg/Sm³. Particulate matter 10 (PM₁₀) averaged 1.49 mg/Sm³ with a range of 0.92 to 1.99 mg/Sm³ , and the resulting ratio of PM₁₀ to TPM was around 60 percent. PM₂.₅/PM₁₀ ranged from 33.7 to 47.9% and averaged 41.6%. Sulfur oxides (SOx) were not detected, and nitrogen oxides (NOx) averaged 6.8 ppm in the range of 5.50 to 8.67 ppm. TPM emission coefficients per product output were in the range of 0.60 to 1.26 g/kg, 0.13 to 0.79 g/kg for PM₁₀ and 0.12 to 0.36 g/kg for PM₂.₅, and showed many differences from the emissions coefficients previously announced. An emissions coefficient for NOx is not currently included in the domestic notices, but the results were calculated to be 0.42 g/kg per product output. Conclusions: Investigation and research on emissions coefficients that can reflect the characteristics of various facilities in Korea should be conducted continuously, and the determination and application of unique emissions coefficients that are more suitable for domestic conditions are needed.