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윤중호,박주희,김정주,권기락,안철진,주우홍,강진호,신동수 Institute of Genetic Engineering Changwon National 1998 Gene and Protein Vol.2 No.1
본 연구에서는 황정 속에 포함되어 있는 생리활성 물질을 hexane, CHCl₃과 n-butanol층에서 각각의 성분들을 추출하였고, hexane층에서 분리된 화합물 I과 H 중에서, 화합물 I의 봐학구조를 ¹H-nmr, ??, DEPT135, COSY, HMQC, HMBC 스펙트럼 및 MS 스펙트럼 등의 분광학적인 방법에 의해 결정하였다. 화합물 I의 구조는 9,12-(9E, 12E)-octadecadienoic acid 임을 확인하였다. In this Paper, biologically active compounds were extracted using organic solvents as hexane. CHC1₃, n-butanol to give each component. Chemical structure of compound I was characterized using ¹H-nmr, ??, DEPT135, COSY, HMQC, HMBC spectrum and MS-spectrum, in separated compound I and Ⅱ from hexane layer. Finally, chemical structure of compound I was determined as 9,12-(9E,12E)-octadecadienoic acid.
벼 잡종초기세대에서 이삭줄기 대유관속 수와 이삭 특성의 분리양상
김광호,안종국,서경인 建國大學校附設農業資源開發硏究所 2001 農資源開發論集 Vol.23 No.-
The segregation modes and the selection efficiency of large vascular bundle(LBV) number and panicle characteristics were measured in three hybrid populations of rice. F_1 plants of the three crosses showed different direction and degree of dominance in vascular bundle number and panicle characteristics. The panicle neck diameter(ND), number of primary branches(PB) and LVB showed a typical normal distribution in F_2. When F_2 plants were divided into two groups up culm length of 90cm, the distribution of LVB number and panicle characteristics were not different between two populations. The selected and non-selected F_3 populations showed no difference in distribution of LVB number and panicle characteristics. However, F_3 populations grouped by culm length of 90cm showed different distributions in LVB and 100-grain weight among six characteristics observed. In F_2 populations, ND showed positive correlationship with PB, LVB number and grain number per panicle(GN). ND was positively correlated with PB, LVB number, GN and panicle length in selected and non-selected F_3 populations.
고재홍,안미영,홍기원,차재호,구정숙 서울大學校 社會科學大學 心理科學硏究所 1993 心理科學 Vol.2 No.-
지방과 도시인의 도로교통 이용실태 및 태도 조사 결과를 보고하였다. 지방을 대표하는 지역으로 경상남도 거창읍을, 그리고 도시는 서울특별시 강남구 대치동을 선정하였고, 각 지역에서 800명(400 부부쌍)의 무선표본을 대상으로 질문지로 조사하였다. 조사내용을 출퇴근 길의 교통수단이용, 외출시의 교통수단이용, 자가용의 이용및 소유실태, 운전면허 소지 및 취득실태, 교통사고경험, 대중교통수단에 대한 평가 및 관련 태도 등이었다. 조사결과, 도시와 지방간의 현재의 교통수단 이용에서의 차이를 파악할 수 있었을 뿐 아니라, 후속연구에서 교통수단이용의 변화를 평가할 수 있는 기저선이 마련되었다. Two representative samples of married couples. one(n=400 couples) from Dae-Chi Dong in Seoul and another(n=400 couples) from the town of Ku-Ch'ang in South Kyung-sang Province were studied through a questionnaire. The questionnaire dealt with (1)transportation uses in commuting to work (2)transportation uses on weekends. (3)types of automobiles owned and the uses to which they are put. (4)statistics related to obtaining and possessing driver licenses. (5)experience of traffic accidents, and (6)attitudes regarding the public trasportations and policies. The study as designed to provide a baseline for future studies on the transportation statistics as well as gauging the urban-rural difference in automobile culture.
김형일,김종렬,안호경,장명익,설효정,김교한 대한치과기재학회 1997 대한치과재료학회지 Vol.24 No.2
The age-hardening behavior of a commercial dental casting low-carat gold alloy was investigated by means of differential thermal analysis, hardness test, optical microscopic observation and X-ray diffraction study. The following results were obtained. 1. By the isothermal aging of this alloy at 300∼400℃, the hardness increased markedly at the initial stage and continued to increased gradually for the time, and then decreased dractically after longer aging time. 2. The hardening was attributed to the formation of the metastable AuCu I' ordered phase from the α matrix. 3. The overaging with softening was attributed to the precipitation of the fine lamellar structure which was composed of the Ag-rich α1 and AuCu I ordered phases.
Joung, Hyou-Arm,Shim, Won-Bo,Chung, Duck-Hwa,Ahn, Jun-Hyoung,Chung, Bong-Hyun,Choi, Ho-Suk,Ha, Sang-Do,Kim, Keun-Sung,Lee, Kyu-Ho,Kim, Cheol-Ho,Kim, Kwang-Yup,Kim, Min-Gon Korean Society for Biotechnology and Bioengineerin 2007 Biotechnology and Bioprocess Engineering Vol.12 No.2
In this study, a specific monoclonal antibody against Listeria monocytogenes was screened using an SPR biosensor. Monoclonal antibodies were bound to protein L, after which the L. monocytogenes cells were subjected to an affinity assay. Protein L was immobilized on a carboxymethyl extran (CM-Dex) surface via an amine coupling method, and utilized repeatedly by regeneration. The monoclonal antibody, 'A18', was selected and employed for the high-sensitivity detection of L. monocytogenes. Under optimized conditions, $10^3 cells/mL$ or 50 cells were detected by the SPR biosensor.
(Ho Joung Jeon),(Jung Yeon Roh),(Do Hyoung Kim),(Wan Kyu Lee),(Young Joon Ahn) 한국응용생명화학회 1998 Applied Biological Chemistry (Appl Biol Chem) Vol.41 No.8
A total of 28 traditional drinks derived from 23 plant species in 19 families were tested for their in vitro growth-inhibiting effects against Bifidobacterium adolescents, Bifidobacterium bifidum, Lactobacillus acidophilus, Lactobacillus casei, Clostridium perfringens, and Escherichia coil using a paper disc agar diffusion method under anaerobic condition. The responses varied with bacterial strain, plant species and tissue sampled. In a test with C. perfringens at 5 and 10 ㎎/disc, potent growth inhibition was produced from the extracts of Eucommia ulmoides stems, Pinus densiflora leaves and shoots, Thea sinensis leaves (green and oolong teas) and Zingiber officinale roots. All materials tested did not adversely affect the growth of bifidobacteria, lactobacilli, and E. coli. These results may be an indication of at least one of the pharmacological activities of these plant-derived drinks.