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비수용매속에서 Eriochrome Black-T의 폴라로그래피적 거동에 관한 연구
金世奉,金一斗,丁梧鎭 조선대학교 기초과학연구소 1988 自然科學硏究 Vol.11 No.1
The electrochemical reduction mechanism of the E. C. B. T in dimethylsulfoxide and system on the addition of proton donor with water was studied. A single two-electron wave, irreversible step below pH5.5 was observed and also irreversible step above pH 6. 1 to pH10.6 was obtained two one-electron waves, and two two-electron waves, respectively. A probable mechanism of the reduction step of each pH range has been proposed.
비수용매 속에서 Chromotrope F.B와 Tellurium(Ⅳ) 착물의 폴라로그래피적 환원에 관한 연구(제2보)
金世奉,丁學鎭,朴聖珪 조선대학교 기초과학연구소 1988 自然科學硏究 Vol.11 No.1
Investigations on the polarographic reduction of 4,5-dihydroxnaphthalene-2,7-disulfonicacid, Sodium salt(Chromotrope F.B) in dimethylsulfoxide as an nonaqueous solvent over pH range 4,9 to 10.8 have been reported. A single wave, reversible step below pH4.9and diffusion controlled, four electron waves was observed over the entire pH range and another irreversible step above pH6.9 was also obtained. The estimation of Tellurium( Ⅳ )from the irreversible diffusion controlled reduction step of the 2 : 1 Chromotrope F.B-Te-llurium(Ⅳ ) Complex has also been reported. A probable mechanism of the formation of the complex and its subsequent reduction has been proposed.
김세봉 동양고전학회 2010 東洋古典硏究 Vol.40 No.-
우리나라는 삼국시대부터 교육기관의 존재가 확인되고 있지만 지방 교육기관인 향교(鄕校)는 고려시대에 처음 등장한다. 언제 향교가 처음 설치되었는지 확실치 않지만 대략 고려 성종이나 인종 연간일 것으로 추정된다. 무신정권과 몽고 침입 기간 등 부실화된 향교가 고려 말 다시 부활되기 시작하였고 신흥사대부들에 의해 조선 건국이 이루어지며 성리학의 보급과 함께 활성화되기에 이른다. 일읍일교(一邑一校)의 기치 하에 향교는 군현 단위로 전국적인 설치가 이루어지지만 한 시기에 동시다발적으로 성사된 것은 아니고 시차를 두고 행해진 것으로 보인다. 보고에 의하면 현재 남한에 231곳, 북한에 93곳, 도합 324곳의 향교가 남아있다고 한다. 숭유억불을 국시로 하고 있는 조선은 초창기부터 과거(科擧)와 연계하여 향교를 통한 인재양성을 표방하였고, 실제로 수령칠사(守令七事)에도 ‘학교흥(學校興)’ 조항을 넣어 중시하고 있었다. 그러나 실제상으로는 지배층의 이데올로기를 전국적으로 확산하는 계기로서 교화(敎化)적 의미가 강하였다고 할 수 있다. 정부에서는 처음에 교관의 파견이라든가 토지와 노비, 서책의 지급 등 보조를 통해 향교를 지원하며 어느 정도 성과를 보였다. 그러나 15세기 후반 경에 이르면 교관의 질적 저하라든가 서원의 남설 등과 관련 그 기능이 현저히 약화되고 종내에는 군역을 회피하는 곳으로 변질되었다. 그럼에도 불구하고 19세기말까지 자신의 신분을 유지하려는 양반 사족들의 이해를 대변하는 향촌기구로서의 기능을 잃지 않고 있었다. Korean history shows that there were already educational institutes even in the Three Kingdoms Time. Hyang-gyo (鄕校), a local educational institute, first appeared in Goryeo dynasty. It is not clearly shown when Hyang-gyo was first established just being estimated to be about the times of King Seongjong or King Injong of Goryeo. Hyang-gyo lost its way through the times of Mongolian invasion and military power regime but it was getting rejuvenated late in Goryeo. Then, Chosun dynasty was founded by Shinheung-Sadaebu(新興士大夫: new nobility group) and Hyang-gyo was vitalized with spreading of Sung Confucianism. Under the emblem of Il-Eup-Il-Gyo(一邑一校: a Hyang-gyo in a village), Hyang-gyo was placed nationwide in every Gun-Hyeon district; not simultaneously but with some interval as far as I have seen the history. A report said that Hyang-gyo is still remaining in total of 324 places including 231 in the South and 93 in the North. With its national policy, Sung-Yu-Eok-Bul (崇儒抑佛: Respecting Confucianism while Suppressing Buddhism), Chosun claimed to support bringing-up of manpower through Hyang-gyo in connection with Gwageo (科擧: national examination to select government officials) even early in its period. In fact, Chosun put the article, 'Hakgyo-Heung (學校興: booming schools)’, in its guideline for local governors, Suryeong-Chil-Sa (守令七事: seven main affairs that local governors must do), to value Hyang-gyo. In fact, however, such policy to spread out Hyang-gyo was no less than an effort of diffusing its ruling power's ideology nationwide. In the early stage, the central government made some achievement in supporting Hyang-gyo through such aids as dispatching trainers, providing land, servants, books and etc. Late in the 15th century, however, Hyang-gyo lost most of its power due to such factors as degrading of trainers, establishment of too many private schools and etc, and finally, it was deteriorated to a place to avoid the duty of national defense. Until late in the 19th century, however, Hyang-gyo did not lose its function completely as a local village organization to represent the benefits of nobility who wanted to keep their position still then.