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수종 담수어간의 (淡水魚間) 근단백 전기영동 분획의 유사성에 관한 연구
김지식 ( Ji Sik Kim ) 한국하천호수학회 1981 생태와 환경 Vol.14 No.1·2
Soluble muscle protein extracted from 9 species fresh water fish was electroph oresised with polyacrylamide gel. The percentage similarity from the electrophoresis band pattern are as followes; 1. The average percentage similarity of Microphysogobio koreensis, M. yaluensis, M. longidorsalis which belong to the same genus of Gobiobotinae appe-ared to be 81%. 2. The average percentage similarity of Hemibarbus longirostris, Gonoproktopterus mylodon and Pseudogobio esocinus which are of different genus but of similar morphological feature appeared to be 78%. 3. The average similarity of Pungtungia herzi, Pseudopungtungia tenuicorpus, Coreleucisus splendidus which are of different genus and of relatively different morphological feature represented 72%. 4. From the above-mentioned 9 species, the percentage similarity of species which is pertained to the same genus is higher than that the percentage similarity of the species with similar morphological feature in defferent genuses of the same family is a little higher of different genuses than that of species which has different morphological features.
한국산 (韓國産) 모래무지아과 어류 (魚類) 수용성 (水溶性) 근단백질의 전기영동상 (電氣泳動像)
김지식,김익수,심재환 ( Ji Sik Kim,Ik Soo Kim,Jae whan Shim ) 한국하천호수학회 1984 생태와 환경 Vol.17 No.3·4
Muscle proteins of the Korean gudgeon of the subfamily Gobioninae were investigated by the polyacrylamide gel electrophoresis to determine the relationships among the species and genera studied. The number of bands were varied between 8∼13, and the mobiltiy and density or width of staining were appeared to be specificity. Judging from the genera Pseudorasbora and Puntungia are closely related each other, but Gnathopogon and Squalidus which were previously known to be cospecific genus were conspicuously difference between them. The muscle protein electrophoretic patterns was provided to be confirmed the phyletic groups adopted for the subfamily Gobioninae by Banarescu and Nalbant in 1973.
담수어의 (淡水魚) 지리적 집단간의 수용성 근단백 분획에 대하여 (1)
김지식,전상린 ( Ji Sik Kim,Sang Rin Jeon ) 한국하천호수학회 1981 생태와 환경 Vol.14 No.1·2
To study the difference of aqueous soluble muscle protein pattern of fresh-water fishes in geographical populations the method of disc-electrophoresis using polyacrylamide was adapted. 1) The number of bands of aqueous soluble muscle protein were 10 in Zacco platypus, 7 in Zacco temmincki, 6 in Pungtungia herzi, 7 in Pseudopungtungia tenuiscorpus, 5 in Rhodus ocellatus, 8 in Coreoleuciscus splendidus, 9 in Microphysogobio longidorsalis. 2) The number of bands, degree of stain, mobility and rate of contents were different in interspecies. 3) No electrophoretic pattern was observed different among the four locality.
압광 페인트를 이용한 MgO 안정화 지르코니아 소재의 급작스러운 파괴거동에 관한 실시간적 관찰연구
김지식 ( Ji Sik Kim ),손기선 ( Kee Sun Sohn ),고향진 ( Hyang Jin Koh ),이완두 ( Wan Boo Lee ) 대한금속재료학회 ( 구 대한금속학회 ) 2007 대한금속·재료학회지 Vol.45 No.5
The recently devlopoped ML(Mechano-Luminescence) technique enables macro-scale visualization of crack propagation during catastrophic failure, together with transformation zone (crack wake) in both crack front and side areas of Mg-PSZ in realistic time frame. The ML made it possible to precisely detect a relatively fast crack propagating in the speed range from 5 to 15 m/sec, thereby realizing so-called quasi-dynamic R-curve. A systematic observation of growth in wake height, as well as wake length, was made successfully in quasi-dynamic condition. Effective-toughening applied-stress intensity factor increased up to 22 MPa(m)(1/2). The h0 values obtained from the ML observation deviated significantly from that predicted by Evans-McMeeking model(J. Am. Ceram. Soc. 65,242(1982)); rahter it supports Marshall et al.`s results by interference microscopy and Raman spectroscopy (J Am. Ceram. Soc. 73,2659(1990)) in the quasi-static crack propagation. It was also mentioned that conventional R-curves spanning over several millimeters range reported for long-crack systems such as DCB(Double Cantilever Beam), CT(Compact Tension), SENB(Single Edged Notched Bar), and etc. can not be explained by Evans-McMeeking model.
조민영,김지식,Jo, Min-Yeong,Timilsina, Suman,Kim, Ji-Sik 한국정보디스플레이학회 2016 인포메이션 디스플레이 Vol.17 No.2
압광 기술의 발전으로 인하여 압광 소재가 형광 페인트나 박막 형태로 제조되어, 응력을 받고 있는 소재의 표면에 적용됨으로써 실시간으로 가해지는 응력과 변형의 정도 및 그 변화를 가시적으로 표시 하고자 하는 센서 기술이 지난 10 여 년간 비약적으로 발전하였다. 이러한 성과를 바탕으로 본 기술 특집 원고에서는 압광 및 형광 기반의 스마트 센서 개발과 관련된 분야에 특화된 내용을 중점적으로 요약 소개 하였다.