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천화산(天花散)과 옥천산(玉泉散)이 고혈당(高血糖) 백서(白鼠)에 미치는 영향(影響)
김권철,박지현,강석봉,Kim Gweon-Cheol,Park Ji-Hyeon,Kang Seog-Bong 대한예방한의학회 2000 대한예방한의학회지 Vol.4 No.1
This present study was carried out to investigate the effect of Chonhwasan and Okchunsan in streptozotocin induced hyperglycemic rats. Body weight, serum levels of glucose, insulin, total cholesterol triglyceride and urine levels of volume, glucose, protein were measured in streptozotocin induced hyperglycemic rats orally receiving extracts of Chonhwasan and Okchunsan plus Radix Trichosandis for 4 days. According to the result, Chonhwasan and Okchunsan have the effect of decreased body weight delate and decreased blood sugar, serum lipid metabolism and urine volume, glucose, protein in streptozotocine induced hyperglycemic rats, and they were expected to be applied to the treatment of Diabetes Mellitus.
인천공항의 154 kV 전력시스템 모델링과 역송 전력 방지대책에 대한 고찰
김권철,김인수 대한전기학회 2023 전기학회논문지 Vol.72 No.11
Yeongjongdo Island, where Incheon Airport is located, has six 154 kV substations, including Yeongjong, Jungsan and Eurwang substations, which are under the control of Korea Electric Power Corporation (KEPCO), and A, B and C substations, which are under the control of Incheon Airport Corp. Since Incheon Airport Corp. is not a "district power supplier," it cannot supply power to KEPCO. Therefore, Incheon Airport Corp. has to pay the electricity bill, including the unused electricity, when the reverse transmission occurs. When the load of Eulwang substation, which is located at the end of the system, increases, reverse transmission of power from "C" to Eulwang substation may occur. To prevent reverse transmission power, power flow analysis and countermeasures are required. In this paper, ETAP, a power system analysis program, was used to present the modeling of six 154 kV substations and transmission lines in Yeongjongdo area, and to confirm the conditions and preventive measures for reverse power transmission.
가상현실을 활용한 전기안전 교육장 구현: 인천국제공항 사례
김권철,김인수 대한전기학회 2024 전기학회논문지 Vol.73 No.3
The number of electrical safety accidents has been decreasing compared to the past, but they are still occurring. Since its opening in 2001, Incheon International Airport has been steadily installing new power facilities and improving existing facilities, and electrical safety accidents have occurred intermittently at these sites. Various electrical facilities have been installed and operated at Incheon Airport such as underground transmission lines connecting to 154kV power grid of Korea Electric Power Corporation, 154/22.9kV substations, 170kV GIS facilities, 25.8kV GIS facilities, 22.9kV underground distribution lines to supply power to passenger terminals and auxiliary buildings, switch gears and 22.9kV/380V transformers. Accordingly, since 2021, Incheon International Airport has implemented these devices using Virtual Reality technology to prevent safety accidents caused by unskilled devices through education and pre-work training for new employees. The purpose of this paper is to introduce the VR training center of Incheon Airport to prevent electrical safety accidents and analyze the effects accordingly.