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중성 운반체 선택성 막전극법에 의한 우라늄 금속의 연속정량
정오진,정경훈,김삼혁 조선대학교 환경공해연구소 1998 環境公害硏究 Vol.14 No.-
The equipments with which selective ions were able to determinated by ion selective membrane electrode method have been designed with the simole electronic circuits. Having made the selective neutral carrier membrance electrodes with PVC matrix. the response potentials of ??O^(2+)_(2)??were measured with the selective membrance electrodes and all of equipments and treatment of data amalysis were operated, and obtained by using the personal computer programs. The neutral carrier membrane electrodes were made by mixing the neutral carriers (macrocyclic compounds and Cryptand), p1asticizer(A1iquart 336, TOPO, and TBP) and matrix(PVC). These neutral carrier membrane electrodes showed a linear potential response to the activities of UO^(2+)_(2)(10-2-10-6M). The neutral carrier selective membrane electrodes for UO^(2+)_(2) and equipment for analysis of selective ions mentioned above were stable and reproducible for a long time use, and the selective coefficients for ??O^(2+)_(2)??were increased in proportion to the formation constants of metal complexes with neutral carrier ligands.
중성 운반체 선택성 막전극법에 의한 우라늄 금속의 연속정량
정오진,정경훈,김삼혁 조선대학교 환경연구소 1998 環境硏究 Vol.14 No.1
The equipments with which selective ions were able to determinated by ion selective membrane electrode method have been designed with the simole electronic circuits. Having made the selective neutral carrier membrance electrodes with PVC matrix, the response potentials of 〔UO^2+_2〕 were measured with the selective membrance electrode and all of equipments and treatment of data amalysis were operated, and obtained by using the personal computer programs. The neutral carrier membrane electrodes were made by mixing the neutral carriers (macrocyclic compounds and Cryptand), plasticizer(Aliquart 336, TOPO, and TBP) and matrix(PVC). These neutral carrier membrane electrodes showed a linear potential response to the activities of UO^2+_2)(10-2-10-6M). The neutral carrier selective membrane electrodes for UO^2+_2 and equipment for analysis of selective ions mentioned above were stable and reproducible for a long time use, and the selective coefficients for 〔UO^2+_2〕 were increased in proportion to the formation constants of metal complexes with neutral carrier ligands.
김삼진,오율자 漢陽大學校 體育科學硏究所 1994 體育科學 Vol.14 No.14
We should maintain firmly our stance in order to cope with any prejudice or any belief in terms of the process of dance socialization. At a time, in the field of sports sociology, it has majorly been projected in the sphere of learning of social science for a needed methodology for the subject sol- ution and not been established a characteristic knowledge and methodological sys- tem by accepting with almost non-criticism, therefore, the process of dance socialization should be emphasized on this, and making firmness a position of one of the part as a individual sphere of learning among the sports sociology, and then it, in its own way, should be needed to develops with deepest concerns to which we study a various variable factors with proper methodology on what shall we do a objective of study and of interesting relations on the process of dance socializtion of dancer together with a broaden understanding over the pre-existing sports sociology in order to build a creative and systematic knowledge system. The people who are living in mordern society can't overlook the society, there-fore we should enhance many things such as social nature, cooperation, esthetic sense, imaginative power and emotion by means of direct participation(a work of performance and a class) and indirect participation(viewing of artistic work, the affiliation of an aid association) which can be achieved through dance. It is very essential for goverment to devise and develop nationwide dancing program. When· it comes to our proposal for the future researcher, we should come up with well-planned research blueprint.
김영진,오삼권,임기욱 호서대학교 반도체제조장비국산화연구센터 2001 반도체장비학술심포지움 Vol.2001 No.-
기업 내 관련 업무 및 조직의 유기적 연결을 통한 원활한 정보의 흐름은 생산성의 중대에 많은 영향을 주며 기업의 경쟁력과도 밀접한 관계가 있다.이러한 이유로 연구개발에서부터 설계, 제조, 판매에 이르기까지 컴퓨터와 통신기술을 활용하여 기업의 업무 흐름을 통합적으로 관리할 수 있는 컴퓨팅 시스템이 필요하다.그러나 기업 내 업무의 성격 및 규모, 어플리케이션 튜닝 등의 충분한 검토가 수행되지 않은 컴퓨팅 시스템은 개발비용의 부담과 더불어 시스템의 성능을 오히려 저하시킬 수 있다.본 논문은 생산 제조 업체의 업무의 성격과 환경에 적합하고 업무의 흐름을 유기적으로 통합 관리할 수 있는 클라이언트/서버 기반 생산 관리 시스템을 설계 및 구현하였다.
김병삼,정진오 순천대학교 공업기술연구소 1997 工業技術硏究所論文集 Vol.11 No.-
Noise produced by vehicles affects daily lives, penetrating where man lives or works. Road noise of automobile is related to the axle vibration, and noise characteristics of automobile interior is also affected by the axle vibration. In this paper, a theoretical model is studied to describe the force transmissibility between road and tire axle vibration. The purpose of this paper is to investigate the relation between tire axle vibration and automobile interior noise experimentally. The results show that the frequency band of the interior noise is almost the same as that of the tire axle vibration. This implies that the reduction of tire axle vibration, through the change of vibration characteristics in tire can be useful for reduction of automobile interior noise.
자동차용 브레이크 마찰재에서의 환원분철의 마찰특성에 관한 연구
정진오,이경환,김옥삼,김봉수 순천대학교 2000 순천대학교 자연과학논문집 Vol.19 No.1
In most automotive brakes, the friction material is used to convert the kinetic energy into heat. The friction material is a complex composite consisting of a resin, reinforcing fibers, lubricants and filler materials. In an attempt to enhance the friction performance of the friction material, a trial was done to examine the substitution of filler material by the reduction iron powder. In this study, two types of reduction powder M1 and M3 was prepared by the reduction process developed by Hanta M&B Inc. M1 and M3 which has reduction ratio of 1.5 and 92% respectively was used in place of BaSO_4, which was conventionally used as a filler material. The amount of M1 and M3 was varied as 10, 20, 30%, while the other component remains the same except the replaced BaSO_4. For those specimens with different amount of reduction iron powder, friction performance tests such as friction coefficient, rotor compatibility were conducted by using brake dynamometer. The bonding strength and hardness tend to decrease with use of M1 and M3, but specific weight decreased with increase of M1 and M3. The friction coefficient increased with use of M1 up to 10%, but decreased for use of M1 more than 20%. However the use of M3 resulted in a decrease of friction coefficient all the way. The surface roughness decreased with the use of M1 and M3, except for a case of excessive use of M1 of 30%. The rotor surface roughness did not show any correspondence with hardness of friction material in this study.
최문경,허경회,이원진,오성욱,이삼선 대한구강악안면방사선학회 2008 Imaging Science in Dentistry Vol.38 No.1
The present study reports a case of eosinophilic granuloma of the mandibular condyle. Eosinophilic granulomas on the mandibular condyle are very rare, but there are several common clinical and radiographic presentations. The clinical presentations involve swelling on preauricular area, limitation of opening, TMJ pain, etc. The radiographic presentations involve radiolucent lytic condylar lesion with or without pathologic fracture. Sometimes new bone formations are observed. The purpose of the article is to add new cases to the literatures.
전통 약용식물 및 각종 식물의 항암효과에 대한 연구(Ⅱ)
현진원(Jin Won Hyun),임경화(Kyoung Hwa Lim),신진이(Jin E Shin),성민숙(Min Sook Sung),오재환(Jae Hwan Oh),양용만(Yong Man Yang),원용진(Yong Jin Won),김영식(Yeong Shik Kim),강삼식(Sam Sik Kang),장일무(Il Moo Chang),백우현(Woo Hyun Paik 한국생약학회 1995 생약학회지 Vol.25 No.4
Antineoplastic activity against human gastric and colon carcinoma cell lines was measured in 49 extracts from 46 plants using the MTT(3-[4, 5-dimethyl thiazol-2-yl]-2, 5-diphenyl tetrazolium bromide) method. Six extracts from five plants have been reported to have antineoplastic effects. Extracts from remaining the 41 plants failed to show significant cytotoxic effect at the concentration of less than 230 ㎍/㎖.