http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Boo, Bong Hyun,Kang, Heun Kag,Kang, Sung Kwon,Lee, Sun Sook,Kim, Dongho,Lee, Myung Ho 충남대학교 기초과학연구소 1992 연구논문집 Vol.12 No.-
The title compounds were synthesized and characterized. The vibrational frequencies of (Me_3Si)_3SiX (X=H, Cl, OH, OD, Me, OMe, SiMe_3) were determined by means of IR and Raman spectroscopy. Based on our AM1 semiempirical calculation and the literature group frequencies of CH_3, Me_3Si, SiSi_3, SiX (X=H, Cl, OH, OD, CH_3, OCH_3) have been assigned. The intensities of the Raman lines of the stretching vibrations of (Me_3Si)_3Si-X (X=Cl, OH, OMe) and (Me_3Si)_3SiO-H are very low compared with those of the IR lines. This indicates that the bonds have a strong ionic nature.
전기 임피던스를 측정할 때 외부 간섭을 제거하기 위한 대역확산 기술의 적용
황인덕,강현각 대한전기학회 2006 전기학회논문지 D Vol.55 No.4(D)
When we measure electrical impedance of a small object, such as an electronic component, external interference or jamming signal can be rejected by shielding the object. However, when we measure impedance of a large object, such as a human body, shielding is not easy and severe error due to the external interference could be introduced. In this paper, spread spectrum technique applicable to bioimpedance measurements for rejecting external interference without shielding is introduced. The improvement in signal-to-jamming ratio by the spread spectrum technique was experimentally confirmed.
백경아,강현각,신명희,박종진,김종대,박성민,이미영,임지순 한국식품저장유통학회 2014 한국식품저장유통학회지 Vol.21 No.4
본 연구는 전통적으로 방부 또는 살균효과가 있어 떡 등에 첨가되거나 저장 및 포장에 이용되었던 자생식물 15종 21건에 대하여 데하이드로초산(sodium dehydroacetate), 소르빈산(sorbic acid), 안식향산(benzoic acid), 파라옥시안식향산메틸(methyl p-hydroxybenzoate), 파라옥시안식향산에틸(ethyl p-hydroxybenzoate), 파라옥시안식향산프로필(propyl p-hydroxybenzoate), 파라옥시안식향산이소프로필(isopropyl p-hydroxybenzoate), 파라옥시안식향산이소부틸(isobutyl p-hydroxybenzoate), 파라옥시안식향산부틸(butyl p-hydroxybenzoate), 프로피온산(propionic acid)의 함유량을 분석하였다. 솔잎, 망개잎, 대나무잎 등 15종에 대한 천연유래 보존료 함유량을 조사한 결과 솔잎, 대나무잎, 칡잎, 모시잎, 쑥, 잣나무잎 등 6종에서 안식향산, 소르빈산, 프로피온산을 확인할 수 있었다. 안식향산은 대나무잎, 모시잎, 솔잎, 쑥, 칡잎, 잣나무잎에서 8.201~21.839mg/kg, 소르빈산은 대나무잎과 칡잎에서 5.630~24.995mg/kg, 프로피온산은 모시잎에서 61.324~62.726mg/kg이 검출되었다. 조사 식물 중 망개잎, 토란잎, 조릿대, 연잎, 원추리, 구절초, 떡갈나무잎, 산초잎, 감잎 등 9종에서는 천연보존성분이 검출되지 않았다.
전기 임피던스를 측정할 때 외부 간섭을 제거하기 위한 대역확산 기술의 적용
黃仁德(In-Duk Hwang),姜顯珏(Hyun-Kag Kang) 대한전기학회 2006 전기학회논문지 D Vol.55 No.4
When we measure electrical impedance of a small object, such as an electronic component, external interference or jamming signal can be rejected by shielding the object. However, when we measure impedance of a large object, such as a human body, shielding is not easy and severe error due to the external interference could be introduced. In this paper, spread spectrum technique applicable to bioimpedance measurements for rejecting external interference without shielding is introduced. The improvement in signal-to-jamming ratio by the spread spectrum technique was experimentally confirmed.