• Title/Summary/Keyword: Microscopic method

검색결과 772건 처리시간 0.028초

미시적/준미시적 방법을 이용한 자동차용 열교환기 해석기법 (A Numerical Process for the Underhood Thermal Management with the Microscopic and Semi-microscopic Heat Transfer Method)

  • 이상혁;김주한;이나리;허남건
    • 한국전산유체공학회:학술대회논문집
    • /
    • 한국전산유체공학회 2008년도 춘계학술대회논문집
    • /
    • pp.75-79
    • /
    • 2008
  • In this study, the numerical process for analyzing the automotive louver fin heat exchanger was developed with a 3D microscopic and semi-microscopic analysis. In the microscopic analysis, the simulation with the detailed meshes was performed for obtaining the characteristics of the heat exchanger. From this simulation, the numerical correlations of the heat transfer and flow friction were obtained. In the semi-microscopic analysis, the Semi-microscopic Heat Exchanger (SHE) method, which is characterized by a conjugate heat transfer and porous media analysis was used with the numerical correlation from the microscopic analysis. This analysis predicted the flow and heat transfer characteristics of the louver fin heat exchanger in the wind tunnel and vehicle. In the design of the louver fin heat exchanger, this numerical process can predict the performance and characteristic of the louver fin heat exchanger.

  • PDF

금려환(錦儷丸)의 현미감정 연구 (Microscopic Identification of the Chinese Patent Medicine 'Geum Ryeo Hwan')

  • 김정묘;박종희
    • 생약학회지
    • /
    • 제37권2호통권145호
    • /
    • pp.116-119
    • /
    • 2006
  • Geum Ryeo Hwan(錦儷丸) is Chinese patent medicine which has been used for women's diseases and climacteric syndrome in Korea. It consists of 12 kinds of powdered crude drugs. In powdered crude drugs, it is hard to identify each component by chemical analysis or morphological examination. However, the method of identification of powdered crude drugs has not been clearly established. Therefore, it is of interest to establish the microscopic method for identification of powdered crude drugs of Chinese patent medicines. The effectiveness of microscopic method is exemplified by the identification of tissue and contents of crude drugs by comparison with standard drugs. Moreover, this method has advantage as a microscale analysis, since it requires only a small amount of specimens. In this study, it is demonstrated that the microscopic method is very effective for the identification of 12 crude drug ingredients in Geum Ryeo Hwan.

아명단(兒明丹)의 현미감정연구 (Microscopic Identification of the Chinese Patent Medicine 'Ah Myeong Dan')

  • 김정묘;박종희
    • 생약학회지
    • /
    • 제36권3호통권142호
    • /
    • pp.205-208
    • /
    • 2005
  • Ah Myeong Dan (兒明丹) is Chinese patent medicine which is used for congenital fever and congenital boils in Korea. It consists of 11 kinds of powdered crude drugs. In powdered crude drugs, it is hard to identify each component by chemical analysis or morphological examination. However, the method of identification of powdered crude drugs has not been clearly established. Therefore, it is of interest to establish the microscopic method for identification of powdered crude drugs of Chinese patent medicines. The effectiveness of microscopic method is exemplified by the identification of tissue and contents of crude drugs by comparison with standard drugs. In this study, it is demonstrated that the microscopic method is very effective for the identification of 11 crude drug ingredients in Ah Myeong Dan.

High Pressure Freezing (HPF)을 이용한 조류 Ptilota filicina의 미세구조 관찰:HPF 고정법과 화학 고정법의 비교 (Ultrastructures of Ptilota filicina (Rhodophyta) by High Pressure Freezing(HPF): Comparison of HPF Fixation and Chemical Fixation)

  • 이상희;김윤중;정종만;김진규;김영민;권희석;문원진;이석훈
    • ALGAE
    • /
    • 제21권4호
    • /
    • pp.479-483
    • /
    • 2006
  • In preparation of the biological samples for electron microscopy, the chemical fixation by glutaraldehyde, paraformaldehyde, and OsO4 has been generally used for a long time. However, the chemical fixation method has some problems: the infiltration time is a little bit long and the ultrastructure of cell or tissue transforms before complete fixation of sample. So, recently, cryo-fixation is considered more often in biomedical field. In this study, we compared High Pressure Freezing (HPF) method with chemical fixation method using a algal sample (Ptilota filicina J. Agardh), which was difficult to fix using chemical fixation method. In chloroplast, the ultrastructure of thylakoid lamella and phycobilisome can not show clearly by chemical fixation. In this study we could observe the ultrastructure of thylakoid lamella and phycobilisome of chloroplast very clearly using HPF fixation. An improved images of ultrastructures of nucleus, mitochondrion and floridean starch could obtain. These results suggest that HPF method is very useful method in algal specimen for electron microscopy.

신쾌환의 현미감정연구 (Microscopic Identification of the Chinese Patent Medicine "Shin Kwae Hwan")

  • 정지현;김성룡;박종희
    • 생약학회지
    • /
    • 제39권4호
    • /
    • pp.330-334
    • /
    • 2008
  • Shin Kwae Hwan(神快丸) is a Chinese patent medicine which has been used for polymyositis, trigeminal neuralgiaand ischiodynia in Korea. It consists of 15 kinds of powdered crude drugs. In powered crude drugs, it is hard to identify each component by chemical analysis or morphological examination. However, the method of identification of powdered crude drugs has not been clearly established. For the identification of individual crude drugs in such powdery mixtures, microscopic method may advantageously be used, as it requires only small amount of specimens. In this study, it is demonstrated that the microscopic method is very effective for the identification of 15 crude drug ingredients in Shin Kwae Hwan.

안체환의 현미감정연구 (Microscopic Identification of the Chinese Patent Medicine 'An Che Whan')

  • 김정묘;김성령;박종희
    • 생약학회지
    • /
    • 제37권3호
    • /
    • pp.196-199
    • /
    • 2006
  • 'An Che Whan(安滯九)' is a Chinese patent medicine which has been used for gastric ulcer and digestive disorder in Korea. It consists of 15 kinds of powdered crude drugs. In powdered crude drugs, it is hard to identify each component by chemical analysis or morphological examination. However, the method of identification of powdered crude drugs has not been clearly established. For the identification of individual crude drugs in such powdery mixtures, a microscopic method may be used conveniently as it requires only a small amount of specimens. In this study, it is demonstrated that the microscopic method is very effective fer the identification of the 15 crude drug ingredients in An Che Whan.

만경단의 현미감정연구 (Microscopic Identification of the Chinese Patent Medicine 'Man Kyung Dan')

  • 정지현;김성룡;박종희
    • 생약학회지
    • /
    • 제39권3호
    • /
    • pp.203-207
    • /
    • 2008
  • Man Kyung Dan(萬經丹) is a Chinese patent medicine which has been used for rheumatic neuralgia, apoplexy, extremitas neurolepsis in Korea. It consists of 16 kinds of powdered crude drugs. In powered crude drugs, it is hard to identify each component by chemical analysis or morphological examination. However, the method of identification of powdered crude drugs has not been clearly established. For the identification of individual crude drugs in such powdery mixtures, microscopic method may advantageously be used, as it requires only small amount of specimens. In this study, it is demonstrated that the microscopic method is very effective for the identification of 16 crude drug ingredients in Man kyung Dan.

환소단의 현미감정연구 (Microscopic Identification of 'Hwan So Dan')

  • 김정묘;정지현;박종희
    • 생약학회지
    • /
    • 제36권4호통권143호
    • /
    • pp.278-281
    • /
    • 2005
  • 'Hwan So Dan(還少丹)' is Chinese patent medicine which has been used for shortage of vitality and asthenia in Korea. It consists of 14 kinds of powdered crude drugs. In powdered crude drugs, it is hard to identify each component by chemical analysis or morphological examination. However, the method of identification of powdered crude drugs has not been clearly established. For the identification of individual crude drugs in such powdery mixtures, microscopic method may advantageously be used as it requires only a small amount specimens. In this study, it is demonstrated that the microscopic method is very effective for the identification of 14 crude drug ingredients in Hwan So Dan.

환명환의 현미감정 연구 (Microscopic Identification of the Chinese Patent Medicine Hwan Myeong Hwan)

  • 김정묘;박종희
    • 생약학회지
    • /
    • 제37권1호통권144호
    • /
    • pp.11-15
    • /
    • 2006
  • Hwan Myeong Hwan (環明丸) is Chinese patent medicine which is used for presbyopia and eye disease. It consists of 23 kind of powdered crude drugs. In powered crude drugs, it is hard to identify each component by chemical analysis or morphological examination. However, the method of identification of powdered crude drugs has not been clearly established. For the identification of individual crude drugs in such powdery mixtures, microscopic method may advantageously be used as it requires only a small amount of specimens. In this study, it is demonstrated that the microscopic method is very effective for the identification of 23 crude drug ingredients in Hwan Myeong Hwan.

대정환의 현미감정연구 (Microscopic Identification of the Chinese Patent Medicine "Dae Jeong Hwan")

  • 정지현;박종희
    • 생약학회지
    • /
    • 제39권1호
    • /
    • pp.43-49
    • /
    • 2008
  • Dae Jeong Hwan (大精丸) is a Chinese patent medicine which has been used for improvement of lassitude, anorexia, and enervation in Korea. It consists of 24 kinds of powdered crude drugs. In powered crude drugs, it is hard to identify each component by chemical analysis or morphological examination. However, the method of identification of powdered crude drugs has not been clearly established. For the identification of individual crude drugs in such powdery mixtures, microscopic method may advantageously be used, as it requires only small amount of specimens. In this study, it is demonstrated that the microscopic method is very effective for the identification of 24 crude drug ingredients in Dae Jeong Hwan.