http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이순애,최성희 한국차학회 2014 한국차학회지 Vol.20 No.4
Young barley leaf has been used as a new food material because of its beneficial health components, such as fiber and vitamins. The flavor compounds in young barley leaf powder tea (sample A) and young barley leaf tea (sample B) were extracted using the SDE method. The concentrated flavor extracts were analyzed and identified by GC-MS. Forty-three compounds including 17 terpenes, 9 aldehydes, 8 alcohols, 7 ketones, 2 furans and 2 others were isolated in sample A. Thirty-five compounds including 8 terpenes, 11 aldehydes, 45 alcohols, 7 ketones, and 2 furans were isolated in sample B. The pattern of the total ion chromatograms of the two samples were slightly different. The major components of sample A were terpene compounds (40%), including β-elemene, β-caryophyllene, α-humulene, β-farnescene, germacrene D, zingiberene, and longipinene, having herbal, woody and spicy notes. The major components of sample B were 2-pentenal, 2-hexenal, furfural, and phenylacetaldehyde having sweet, green and floral notes.
Raman 분광법에 의한 GaN OMVPE 전구체들의 열분해에 관한 연구
이순애,김유택,신무환,신건철,박진호 한국결정성장학회 2000 한국결정성장학회지 Vol.10 No.2
도립형 OMVPE 반응기 내부의 기상 온도분포와 OMVPE 전구체들의 농도분포를 in-situ Raman 분광법으로 조사하였다. 운반기체의 회전 Raman 스펙트럼 분석을 통해 반응기 내부의 온도 분포를 측정하였고, 기판 근처에 수직적 온도 구배가 형성됨을 확인할 수 있었다. 또한 진동 Raman 스펙트럼 해석으로부터 전구체의 열분해도를 관찰살 수 있었다. $NH_3$의 경우 800 K 근처에서, TMGa의 경우 650 K 근처에서 열분해가 시작됨을 알 수 있었고, 기판에 매우 근접한 지역에서도 상당량의 전구체가 분해되지 않은 상태로 잔류함을 알 수 있었다. The temperature profiles of gas phase and the concentration profiles of GaN precursors in an inverted OMVPE reactor have been carried out by in-situ Raman spectroscopy. Pure rotational Raman scattering from the carrier gas (rd) was used to determine the temperature profiles in the reactor, and a large temperature gradient perpendicular the susceptor surface was observed. The homogeneous gas phase decompositions of the OMVPE precursors were investigated by the vibrational Raman spectra, and it was found that the pyrolyses of $NH_3$ and TMGa begin above 800 K and 650 K, respectively, but a noticeable amount of precursors remain undecomposed even in the region very close to the susceptor.
이순애,이미순,김영아,안원식,이형철 대한법의학회 2010 대한법의학회지 Vol.34 No.2
Background: Propofol is a widely used anesthetic in anesthesia and sedation. Though it is not regulated under the controlled substance act, the public media broadcasted apprehensive programs about propofol abuse of laypersons. We attempted to determine whether the propofol is abused by the medical personnel working in the operation room in Korea. Methods: We surveyed the 95 delegates who sat in the back benches in the Korean Society of Anesthesiologists. The questionnaire included the job of the propofol abuser, the rehabilitation, drug abuse history, stressful condition, family history of drug abuse in medical personnel in operation room. Additional question was what is the adequate method to prevent propofol abuse. Results: Seventy two delegates among 95 candidates were responded. Seven of 72 responders answered that they knew 9 medical personnel who abused propofol in operation room. Four of them were anesthesiology residents, two were other departments’residents,one was a nurse in anesthesiology and the other two were unknown. Among nine subjects, two had tried to rehabilitate but failed, and all abusers quit working within 1 year. As for the prevention methods, 9 of 12 responders suggested that propofol should be controlled like other centrally acting anesthetics. Conclusion: Although propofol has not been traditionally considered a drug of abuse, a few medical team members abuse it working in operation room. A stricter pharmacy control of propofol or controlled substance act for propofol should be needed to prevent abusing it and to protect medical team members.
이순애,김태욱,최성희 한국차학회 2015 한국차학회지 Vol.21 No.4
The flavor compounds in Korean green powder tea and Japanese green powder tea were extracted using the SDE method. The concentrated flavor extracts were analyzed and identified by GC-MS. Forty-three compounds including 14 compounds including geraniol, linalool, α-terpineol, β-ionone etc with a floral odor, 9 compounds including hexanal, (Z)-3-hexenol etc. having a green odor, 7 compounds including camphene, farnesene etc. with a camphoraceous or woody odor, and other compounds were isolated from Korean powder green tea. Forty-one compounds including 10 compounds including geraniol, linalool, α-terpineol, β-ionone etc. with a floral odor, 7 compounds, including hexanal, (Z)-3-hexenol, (Z)-3-hexenyl hexanoate etc. with a green odor, 6 compounds, including 3-methyl butanal and 2-methyl butanal etc. with a sweet odor and others were isolated from Japanese powder green tea. The flavor compounds in the two groups were different. 국산과 일본 말차류의 향기 성분을 비교 분석하였다. 휘발성 향기성분의 추출에는 Likens and Nickerson형 동시증류추출(SDE)장치를 사용하고 추출된 농축물은 GC-MS에의해 분리, 동정하였다. 말차류는 볕가리개로 재배한 찻잎으로 제조하였기 때문에 양쪽 시료에 공통적인 점도 있고차이점도 있었다. 공통적인 것으로는 양쪽 시료 모두 달콤한 향을 띄는 3-methyl butanal과 2-methyl butanal의 함량이 높았다. 그린계의 향기 성분인 C6계 알콜이나 알데히드의 종류도 많았다. 카로티노이드계 색소 분해물인 이온계화합물인 α-, β-ionone과 β-ionone-5,6-epoxide가 있고 함량도 비교적 많은 편이었다. 국산 말차에만 있는 화합물류는 10개의 화합물이 있었다. Linalool의 산화물인 꽃향을 띄는 linalool oxideⅠ은 국산 말차에만 있었다. 다른 화합물들은 국산말차 3 종류에모두 포함 되어 있지는 않으므로 국산 말차를 특징짓는 화합물로는 생각되지 않았다. 한편, 국산 말차에는 없고 일본말차에만 있는 화합물이 9개가 동정되었는데 이 중pyridine과 (Z)-3-hexenyl hexanoate는 일본 말차 3 종류에모두 포함되어 있었다. 또한, 차류를 높은 온도에서 가열할 때 생성되는 pyrrole류, furfural 및 pyrazine 등이 일본 말차류에서만 나타났다. 일본 말차에는 풋풋한 향을 띄는 화합물의 종류가 많음에도 불구하고 관능적으로는 풋풋한향이 부족하고 미숫가루 같은 향이 나는 것은 pyridine과더불어 가열할 때 생성되는 pyrrole류, furfural 및 pyrazine 등이 요인이 되는 것으로 판명되어 향기 성분의 관점에서보았을 때 국산 말차류가 일본 말차 보다 더 녹차의 특징적인 향을 띄며 이러한 특징이 있기 때문에 우리나라 사람들은 향기의 관능검사에서 국산 말차를 더 선호하는 요인(2) 으로 작용하는 것 같았다.