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RISS 인기검색어
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- 저자 : 윤종성 ( Yun Jong Seong ) (검색결과 7 건)
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윤종성,이상인,이재성,박호군,Yun, Jong-Seong,Lee, Sang-In,Rhee, Jae-Seong,Park, Ho-Koon The Society of Korean Medicine 1998 대한한의학회지 Vol.19 No.1
The purpose of present study is to clarify the differences between EIslwitzia Ciliata (Thunb.) Hylander(향유) and Elsholtzia splendens Nakai ex F. Maekawa (꽃향유) for standardization and the proper usage as medicinal herbs. The major ingredients of both species were isolated by distillation and extraction. The qualitative and quantitative analyses of major distillates were carried out by the use of GC/MS. There was a significant difference between the components of Elsholtzia ciliata and Elsholtzia splendens in the aspects of major components. Several common ingredients were identified as linalool, cumene, elsholtzia ketone, naginata ketone isomer, naginata ketone, myristicin, and sesquiterpene alcohol. Comparison between Elsholtzia. ciliata and Elsholtzia splendens was done in the aspect of major compounds. Myristicin (33.7%) has been shown to be the major component in Elsholtzia ciliata whereas naginata ketone isomer (26.1%) was believed to be a major ingredient in Elsholtzia splendens. The elsholtzia ketone was also one of the major differentiating factors between Elsholtzia splendens and Elsholtzia ciliata, and the quantity is 15.1% in Elslwltzia splendens compared to 2.87% in Elsholtzia ciliata. Moreover, in the Elsholtzia splendens, 4- vinylguaiacol and isoosmorhizole were absent, but both compounds were present in the EIsholtzia ciliata.
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이재원(Lee Jae One),윤종성(Yoon Jong Seong),신진수(Sin Jin Soo),윤부열(Yun Bu Yeol) 대한공간정보학회 2008 대한공간정보학회지 Vol.16 No.2
최근 항공측량분야의 가장 큰 기술적 특징은 Camera 혹은 Lidar와 같은 주 센싱 장비에 GPS, IMU 등 다양한 위치결정 센서를 연계한 Direct Georeferencing 기술의 활용이다. 아울러 항측용 디지털 카메라의 기술적 우월성과 이의 활용성이 입증됨에 따라 다양한 종류의 항측용 디지털 카메라가 개발 및 보급되고 있다. 이에 부응하여 국내에서도 일반적인 항공촬영으로는 취득이 불가능한 건물측면과 비고가 큰 지형에서 발생하는 사각지역에 대하여도 3차원 정보취득과 Texture Mapping이 가능한 다각(Multi-looking)항공촬영시스템의 개발이 시도되고 있다. 하지만 다양한 센서 결합과 다중 카메라의 배열에 따른 센서들간의 시각동기화와 함께 정확한 기하 및 복사보정을 실시해야 하는 문제점이 따른다. 이를 해결하기 위해서는 항공측량 시스템의 센서검정(Sensor Calibration)에 필요한 테스트 필드가 절실히 요구되고 있다. 따라서 본 연구에서는 항공측량용 테스트 필드 구축과 관련한 국외 사례를 고찰하고 국내 테스트 필드 구축방안을 제시하고자 한다. Recently, one of the most outstanding technological characteristics of aerial survey is an application of Direct Georeferencing, which is based on the integration of main sensing sensors such as aerial camera or Lidar with positioning sensors GPS and IMU. In addition, a variety of digital aerial mapping cameras is developed and supplied with the verification of their technical superiority and applicability. In accordance with this requirement, the development of a multi-looking aerial photographing system is just making 3-D information acquisition and texture mapping possible for the dead areas arising from building side and high terrain variation where the use of traditional phptogrammetry is not valid. However, the development of a multi-looking camera integrating different sensors and multi-camera array causes some problems to conduct time synchronization among sensors and their geometric and radiometric calibration. The establishment of a test field for aerial sensor calibration is absolutely necessary to solve this problem. Therefore, this paper describes investigations for photogrammetric Test Field of foreign countries and suggest an establishment scheme for domestic test field.
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김사중 ( Kim Sa Jung ),이찬기 ( Lee Chan Gi ),송평섭 ( Song Pyeong Seob ),윤종성 ( Yun Jong Seong ),강용 ( Kang Yong ),김준식 ( Kim Jun Sig ),최명재 ( Choe Myeong Jae ) 한국공업화학회 2003 공업화학 Vol.14 No.5
폐폴리스티렌 및 범용 폴리스티렌을 각각 시료로 하여 TGA (thermogravimetric analysis)를 이용하여 열분해와 연소 반응을 수행하여 폐폴리스티렌과 범용 폴리스티렌의 열분해 및 연소반응 특성을 검토하였다. TGA의 승온속도는 10 K/min, 20 K/min, 30 K/min, 40 K/min 및 50 K/min로 변화 시켰으며, 질소와 산소 분위기에서 가열온도는 323 K~1073 K 범위에서 수행하였다. 반응 특성 검토에서 중요한 요소인 반응차수 및 활성화 에너지들은 Kissinger, Freeman-Carroll, Chatterjee-Conrad, Friedman 및 Coats-Redfern 방법을 사용하여 해석하였고, 각각의 방법에 따른 열분해와 연소반응의 활성화에너지 값을 구하여 비교, 해석하였다. 연구에 사용된 해석 방법과 실험조건에 따라 결과값에 차이가 있음을 알 수 있었으며, 연소 분위기의 겉보기 활성화에너지 값은 140~225 kJ/mol으로 열분해 분위기의 155~260 kJ/mol 값보다 작게 나타났다. Thermal characteristics and kinetic parameters of polystyrene waste and polystyrene were determined by means of thermogravimetry (TGA) at non-isothermal heating conditions(10 K/min, 20 Wmi, 30 K/min, 40 Wmin and 50 K/min) both for pyrolysis and combustion processes. Activation energies and reaction orders of the samples were determined by different methods such as Kissinger, Freeman-Carroll, Chattejee-Conrad, Friedman and Coats-Redfem methods. These methods were compared in terms of their accuracy and the ease of interpretation of the kinetics of thermal decomposition. It was found that the apparent activation energies of the thermal processes were different with variation of analytical methods and experimental conditions. The apparent activation energy of combustion at the atmosphere of 80∼130 KJ/mol was lower than that of pyrolysis at the atmosphere of 90∼150 KJ/mol.
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무기질 흡착제를 이용한 증기상 유해 중금속의 고온제거특성
박성하,윤종성,고명한 한밭대학교 2004 한밭대학교 논문집 Vol.21 No.-
This study investigated the kinetics of the sorption reaction for gaseous lead capture in the packed bed of calcined kaolin at 973~1173 K. The effects of bed temperature and gaseous reactant concentration on the sorption reaction rate were observed by the analysis of experimental data with a developed kinetic model. Detailed information on the lead-sorbent reaction were obtained by the XRD(X-ray diffraction) pattern analysis and the microscopic analysis of pre- and post-sorption sorbent samples. The reaction between metakaolinite, which is the calcination product of kaolin minerals, and the gas-phase lead generated stable metal-mineral complexes(PbAl₂Si₂O_(8)). An increase in bed temperature resulted in an increase of capturing rate, but it had no effect on maximum uptake. The order of sorption reaction with respect to the lead concentration, m, was determined to be 1.67. The activation energy, E_(a), was estimated as 10.16 kcal/mol, according to the Arrhenius relationship.
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