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Imazethapyr 유도체의 제초활성에 미치는 3-(N-methyl-N-(X)-치환-phenylaminooxoacetyl) group의 영향
성낙도,김현재,장해성,김대황 충남대학교 생물공학연구소 1993 생물공학연구지 Vol.3 No.-
새로운 25종의 Imazethapyr 유도체, (2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)-3-(N-methyl-N-(X)치환 -phenylaminooxoacetyl)-5-methylpyridine)들을 합성하여 치환기(X) 변화에 따른 발아 전 후, 피(Echinochla crus-galli.)의 제초활성에 미치는 3-(N-methyl-N-(X)치환 -phenylaminoozoacetyl) group의 영향을 검토한 바, 발아 전보다 발아 후의 제초활성에 더 큰 영향을 미침을 알 수 있었다. 발아 후의 제초활성은 X-치환기의 전자밀게 효과와 입체상수(E_s)에 의존적이었으며 가장 큰 제초활성을 나타내는 화합물로는 bulky(E_s<O)하고 전자밀게 (б<O)가 치환된 화합물, 15(4-t-butyl group)와 20(3,5-dimethyl group)이었다. 그리고 높은 제초활성을 나타낼 것으로 예상되는 화합물의 조건들이 검토되었다. (1993년 9월 18일 접수, 1993년 9월 22일 수리). New twenty five Imazethapyr derivatives, [2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)-3-(N-methyl-N-X(sub.)-phenylaminooxoacetyl)-5-methylpyridine] were synthesized. and The quantitative structure activity relationships (QSARs) between their post-emergence herbicidal activity(pI_50) values in vivo against Barnyard grass (Echinochloa crus-galli) and physicochemical parameters of substituents(X) of 3-(N-methyl-N-X(sub.)-phenylaminoo-xoacetyl) group have been studied. From the basis on the findings, in case of post-emergence, the activities were dependent on the steric constant(E_s<θ)and electron donating (o<O) effect by subsitituents(X) of 3-(N-methyl-N-X(sub.)phenylaminooxacetyl) group. Therefore, The most effective compound, 15 (4-t-butyl group) and 20 (3,5-dimethyl group) were examined in this study. And the conditions on the compounds predicted to show higher herbicidal activity were also discussed.
Imazapyr 유도체의 제초활성에 미치는 3 - ( N - methyl - N ( X ) - 치환 - Phenylaminooxoacetyl ) Group 의 영향
성낙도(N . D . Sung),유택승(T . S . Ryu),장해성(H . S . Chang),김대황(D . W . Kim) 한국응용생명화학회 1994 Applied Biological Chemistry (Appl Biol Chem) Vol.37 No.6
New seventeen imazapyr derivatives, 2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)-3-(N-methyl-N-X(sub.)-phenylaminooxoacetyl)pyridine, 6 were synthesized and their pre-emergence herbicidal activity(pI_(50) in vivo against Corn (Zea mays L.) and Pigweed (Amaranthus viridis L.) were studied by the pot test under paddly conditions. (quantitative structure activity relationships (QSARs) were analyzed using the physicochemical parameters of substituent(X) on the phenyl ring of 3-(N-methyl-N-X(sub.)-phenylaminooxoacetyl) group and regression analysis. The herbicidal activities were related to the steric effect of X-substituent. The effect was rationalized by paraholic function of MR and L₁, where the optimal values were MR=5.56 (Zea mays L.) and L₁=3.34 Å (Amaranthus viridis L.). Among them, 2,5-difluoro substituted compound, 6i showed good herbicidal activity against Pigweed with excellent tolerance to Corn.
Multiferroic h-HoMnO₃의 자기적 성질 연구
김성백(Sung Baek Kim),금복연(Bok Yeon Kum),김철성(Chul Sung Kim),안성용(Sung Yong An),N. Hur(N. Hur),S. Park(S. Park),S.-W. Cheong(S.-W. Cheong),장광현(Kwang-Hyun Jang),박제근(J.-G. Park) 한국자기학회 2005 韓國磁氣學會誌 Vol.15 No.2
Multiferroic HoMnO₃ single crystal was prepared using 4-point focused floating zone furnace, and polycrystalline HoMn_(1-x)(57)^Fe_xO₃ (x=0.00, 0.01, 0.02, 0.05) powders have been prepared by solid state reaction. Their magnetic and crystallographic properties are studied using MPMS, PPMS, and Mossbauer spectroscopy. The crystal structure is found to be a hexagonal and a magnetic easy-axis is (110) direction. As the external applied magnetic field increases, temperature of the dielectric constant anomaly is decreased. HoMn_(0.95)(57)^Fe_(0.05)O₃ shows huge quadrupole splitting value from the Mossbauer spectra.
Imazethapyr 유도체의 제초활성에 미치는 3 - ( N - methyl - N - ( X ) - 치환 - phenylaminooxoacetyl ) group 의 영향
성낙도(N . D . Sung),김현재(H . J . Kim),장해성(H . S . Chang),김대황(D . W . Kim) 한국응용생명화학회 1993 Applied Biological Chemistry (Appl Biol Chem) Vol.36 No.5
New twenty five Imazethapyr derivatives, [2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)-3-(N-methyl-N-X(sub.)-phenylaminooxoacetyl)-5-methylpyridine] were synthesized. and The quantitative structure activity relationships (QSARs) between their post-emergence herbicidal activity(pI_(50)) values in vivo against Barnyard grass (Echinochloa crus-galli) and physicochemical parameters of substituents(X) of 3-(N-methyl-N-X(sub.)-phenylaminooxoacetyl) group have been studied. From the basis on the findings, in case of post-emergence, the activities were dependent on the steric constant(E_s$lt;0) and electron donating (σ$lt;0) effect by subsitituents(X) of 3-(N-methyl-N-X(sub.)phenylaminooxoacetyl) group. Therefore, The most effective compound, 15 (4-t-butyl group) and 20 (3,5-dimethyl group) were examined in this study. And the conditions on the compounds predicted to show higher herbicidal activity were also discussed.
하수슬러지 처리를 위한 건조 및 열분해공정의 반응특성에 관한 기초연구
조지영,하상안,정병길,정유진,고현웅,성낙창 東亞大學校 附設 環境問題硏究所 2004 硏究報告 Vol.26 No.-
The Objective of this study was conducted to investigate the reaction characteristics of dry and pyrolysis process for sewage sludge treatment. The important conditions include running time of pyrolysis, running time of dry and pyrolysis process, water content of sewage sludge, total solids amount of sewage sludge(TS%), condition of pyrolysis temperature. Most reaction velocities in sewage sludge are first equation, it assumed the first order and elucidated the kinetics. This was the basis of characteristics analysis of sewage sludge reaction mechanism. As the result of analysis on it, it increases in reaction velocity constant less and less total solids amount of sewage sludge by pyrolysis process.
원발성 동맥염 15 예 ( 4 부검예포함 ) 에 관한 고찰
안우풍 ( W. P. Ahn ),성낙훈 ( N. H. Sung ),김영호 ( Y. H. Kim ),김열자 ( Y. J. Kim ),유수웅 ( S. W. Yoo ),박승광 ( S. K. Park ),홍진숙 ( J. S. Hong ),강석린 ( Suk Rin Kang ),지정희 ( Chung Hee Chi ) 대한내과학회 1971 대한내과학회지 Vol.14 No.3
During the period from Jan. 19o9 to Sept. 1967, 15 cases with primary arteritis or pulseless disease were observed in the Department of Medicine of National Medical Center. The diagnosis was made on, the basis of autopsy findings in 2 cases, of aortographi
강의 산세 (酸洗) 폐수를 이용한 Magnetite 자성잉크 제조에 관한 연구
이명재,설수덕,김영삼,차동득,성명원,박세윤 대한금속재료학회(대한금속학회) 1989 대한금속·재료학회지 Vol.27 No.9
This paper describes the results on the formation of magnetite particles to be used in making magnetic ink from the waste pickling liquor of steel which contains 8.9 wt.% of Fe ion (in which Fe²+ ion occupies 8.58wt.%) under conditions of pH 11, temperature of 80℃, air blowing rate of 100 cc/sec, and Fe^(2-)/Fe^(+3) ㏖-ratio of the waste pickling liquor being 0.5-27.1) Oxidation is easily proceeded in 200 g of waste liquor added with 1% HNO₃from Fe^(+2)+ ion to Fe^(+3) ion at 70℃ with air blowing rate of 100cc/sec. 2) Magnetite particles at Fe^(+2)/Fe^(+3) ㏖-ratio of 0.5-1.0 were of ultra-fine sizes less than 110 angstrom. They have magnetic susceptibility of 48-60 emu/g at 6kOe and showed super-paramagnetic characteristics and thus could be used in making magnetic ink. 3) It was possible to produce magnetic ink by coating the oleic acid on the surface of magnetize particles made from the waste pickling liquor of steel and dispersing them into kerosene oil.
젖소의 골반입구 크기와 요각폭에 (腰角幅) 대한 산차효과 및 유전력 추정
안병석(B . S . Ahn),상병돈(B . D . Sang),윤문석(M . S . Yun),김재원(J . W . Kim),전재원(J . W . Jeon),조윤연(Y . Y . Cho),박태진(T . J . Park),김내수(N . S . Kim) 한국축산학회 1992 한국축산학회지 Vol.34 No.6
To estimate the effect of parity, and the heritability of the pelvic inlet size and rump width, the data set of 276 heads of dairy cattle were analized. The parity influenced on the pelvic inlet size and rump width (p $lt;.01). The heritabilities of the pelvic inlet size and rump width were .24±.24, .28±.22 by GLM and Harvey, .40±.23, .35±.23 by ML, .43±.23, .38±.23 by REML, .59±.22, .30±.22 by MIVQUE, respectively.