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새로운 2-Quinazolylacetonitrile 유도체들의 합성
김정환,민경수,Kim, Jung Hwan,Min, Kyung Su 대한화학회 2001 대한화학회지 Vol.45 No.6
H-chelate형태의 2-Quinazolylacetonitrile유도체들은 2-cyanomethylquinazoline에 여러가지 친전자체들, 즉, 4-chloroquinazoline, 4-chloro-2-phenylquinazoline, 4,6-dichloropyrinidine, 4,6-dichloro-2-phenylpyrimidine, 4,6-dichloro-5-phenylpyrimidine, 2-chloroauinoxaline,1,3- dichloroisoquinoline, 2,6-dichloropyrazine, 2-chloropyrazine, 4,6-dichloro-2,5-diphenylpyrimidine 등을 반응시켜 얻을 수 있었다. 합성된 H-chelate화합물들은 polymethine계의 발색단 구조를 가지게 된다. 이들 화합물에 대한 구조는 분광학적인 방법으로 분석 확인 하였다. 2-Quinazolylacetonitrile derivatives containing H-chelate have been synthesized from 2-cyanomethylquinazoline using electrophiles such as 4-chloroquinazoline, 4-chloro-2-phenylquinazoline, 4,6-dichloropyrimidine, 4,6-dichloro-2-phenylpyrimidine, 4,6-dichloro-5-phenylpyrimidine, 2-chloroquinoxaline, 1,3-dichloroisoquinoline, 2,6-dichloropyrazine, 2-chloropyrazine and 4,6-dichloro-2,5-diphenylpyrimidine. These H-chelates may serve as a polymethine chromophore system. Structures of the target molecules were identified by spectral methods.
경사지(傾斜地)밭에 있어 이랑방향(方向)이 농지보전(農地保全)에 미치는 영향
한욱동 ( Wook Dong Han ),민경수 ( Kyung Su Min ) 한국농공학회 1969 韓國農工學會誌 : 전원과 자원 Vol.11 No.3
In this country, farmers lay out furrows in the direction which is considered by their own judgement to be convenient for cultivation without paying much attention for soil erosion. The direction of furrow has considerable effects on soil and water losses. In this experiment, it is intedned to observe the differences of soil and water losses in different directions of furrows of sloped fields so that the results thus obtained could be informed to farmers who should be careful in determining furrow direction for soil erosion control. Some the major experimental results are summarized as follows: The direction of furrows did not affect so much on the runoffs in a gentle slope, as the runoff is 509 ton/10a in the contouring plot, 51°/ton/10a in the 45-degree plot, and 560 ton/10a in the up-and-down hill plot. The contouring plot among the three plots had best effect on soil conservation, as the soil losses are 5.8 ton/10a in the contouring plot, 9.3 ton/10a in the 45 degree plot, and 10.2 ton/10a in the up-and-down hill plot.
김용일(Yong Il Kim),이종범(Jong Bum Lee),민경수(Kyung Su Min),홍달수(Dal Su Hong),최지식(Ji Sik Choi),서영석(Young Seok Seo) 대한산부인과학회 2001 Obstetrics & Gynecology Science Vol.44 No.10
Dermoid cysts are the most common type of ovarian neoplasms occurring during a woman's reproductive life and account for 25% of all premenopausal ovarian neoplasms. Intraoperative spillage of dermoid cyst materials may lead to febrile morbidity, ileus, peritonitis, adhesion or fistula formation. Rarely, malignant element spillage, if present, may also lead to cancer dissemination. The management of dermoid cyst is controversal. Recently, laparoscopic surgery for ovarian cysts has been increasingly accepted. But, in view of the high risk of intraperitoneal rupture of large sized cysts, many surgeon still prefer the laparotomic approach. Recently, we did laparoscopic salphingo-oophorectomy to the patient having 20cm sized dermoid cyst. Intraoperative spillage of cyst material occurred, but patient recovered without any postoperative complication. So, we present this case with brief review of the literatures.