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서상헌,유회영,김상남,하성철,Seo, Sang-Hyeon,Yu, Heoi-Young,Kim, Sang-Nam,Ha, Sung-Chul 한국조명전기설비학회 1996 조명.전기설비 Vol.10 No.6
본 논문은 저자들에 위해 결정된 전자충돌단면적을 사용하여 몬테칼로 시뮬레이션 볼쯔만 방정식법에 의해 E/N:150∼180[Td] 범위에서 계산된 {{{{ { SF}_{ 6} }}}}가스의 전자수송 특성과 TOF법에서 구한 전자군 파라미터 값들을 나타냈다. 전자이동 속도 전자전력 또는 부착계숙, 종·횡방향 확산계수 등의 전자군 파라미터 값들은 E/N범위에서 실험치와 이론치가 일치하였다. 전자사태의 특성은 전자에너지의 비평형영역에서 고려되었다. 전자에너지 분포함수 는 평균에너지의 평형영역에 대하여 E/N:150∼180[Td]에서 해석하였다. 그 결과의 타당성은 TOF법에 의해 입증되었다. This paper describes the electron transport characteristics in SF6 gas calculated for range of E/N values from 150~ 800[Td) by the Monte Carlo simulation and Boltzmann equation method using a set of electron collision cross sections detennined by the authors and the values of electron swarm parameters are obtained by TOF method. The results gRined that the values of the electron swarm parameters such as the electron drift velocity, the electron ionization or Rttachment coefficients, longitudinal and transverse diffusion coefficients agree with the experimental and theoretical for a range of E/N. The properties of electron avalanches is concerned electron energy non--equilibrium region. The electron energy distributions function were analysed in sulphur hexafluoride at E/N : 500~800[Td) for a case of non-equilibrium region in the mean electron energy. The validity of the results obtained has been confilll1ed by a TOF method.
SF<SUB>6</SUB>가스의 전자에너지 분포함수에 관한 연구
김상남(Sang-Nam Kim),유희영(Heoi-Young Yu),서상현(Sang-Hyeon Seo),박동화(Dong-Wha Park),하성철(Sung-Chul Ha) 한국조명·전기설비학회 1996 한국조명·전기설비학회 학술대회논문집 Vol.1996 No.-
The electron energy distributions function were analysed in sulphur hexaflouride at E/N : 500~800(Td) for a case of non-equilibrium region in the mean electron energy. This paper describes the electron transport characteristics in SF<SUB>6</SUB> gas calculated for range of E/N values from 150~800(Td) by the Monte Carlo simulation and Boltzmann equation method using a set of electron collision cross sections determined by the authors and the values of electron swarm parameters. The results gained that the value of an electron swarm parameter such as the electron drift velocity, the electron ionization or attachment coefficients, longitudinal and transverse diffusion coefficients agree with the experimental and theoretical for a range of E/N. The properties of electron avalanches in an election energy non-equilibrium region.
Physicochemical Property of Polygonum multiflorum by Acetic Acid Bacteria Fermentation
Kyung-Je Kim,Seong-Woo Jin,Hae-Shin Je,Young-Woo Koh,Seung-Bin Im,Sang-Wook Jeong,Yu-Seon Kim,Junseok Oh,Jae-Heoi Hong,Tae-Young Park,Kyoungsun Seo 한국버섯학회 2017 버섯 Vol.21 No.2
Polygonum multiflorum (Polygonaceae family) is effective to cholesterol lowering effect, increased immunity effect and whitening effect. P. multiflorum root is used for medicinal herb that can be used as raw material for food. In this study, acetic acid fermentation was adding extracts of P. multiflorum root(0%, 1%, 3%, 5%) for the developing healthy beverage. In this study, we investigated the contents of free sugars, organic acids and inorganic components of P. multiflorum root. As a result of free sugars from P. multiflorum root analysis, three kind of free sugars were determined the glucose, sucrose and lactose by HPLC. Four kind of organic acids were found in lactic acid fermented P. multiflorum root. And oxalic acid, lactic acid and succinic acid were detected in organic acids. The content of lactose and lactic acid in lactic acid fermented P. multiflorum root was the highest among the free sugars and organic acids. The content of minerals were in high orders of sodium> calcium> magnesium in P. multiflorum by acetic acid fermentation. The content of inorganic components was highest in lactic acid fermented solution with 5% and proportional to the content of P. multiflorum