http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
미량의 코발트 첨가가 W-Cu 전기 접점재의 성질에 미치는 영향
이재성,문인형 대한금속재료학회(대한금속학회) 1977 대한금속·재료학회지 Vol.15 No.2
高負荷能을 갖는 W-Cu系 전기 접점재의 미량의 Co를 첨가함으로서 얻어지는 諸使用特性의 變化를 單純W-Cu系와 또 미량의 Ni을 첨가한 경우와 對比 조사하였다. W-Cu-Co (tr.)系는 W-Cu-Ni (tr.)系나 W-Cu系에 比하여 旣發表한 바와 같은^(1)) 燒結 및 溶侵時에 보여주는 有利한 製造上의 特性이외에도 그 전기적특성에 있어서도 뚜렷한 개선을 보여주었다. W-Cu-Co(tr.) 系는 同一한 使用條件아래에서 W-Cu나 W-Cu-Ni (tr.)系에 比하여서 보다 낮은 接觸抵抗과 contact erosion 율을 보였다. 이와 같은 낮은 contact resistance나 contact erosion 현상은 W-Cu-Co 系에서도 W-Ag-Co에서와 같이^(2,3)) Co_7W_6 金屬間化合物이 W粒子주변에 형성되어 접점저항의 증가를 가져오는 복잡 산화물의 형성을 저지하기 때문이라 생각된다. ※^(1)) 李載星, 文仁炯 : 大韓金屬學會, 1976年度秋季學術發表會서 "미량의 코발트 첨가가 W-Cu 전기 접점재의 수축거동에 미치는 영향"발표(同學會誌 14권 4호의 초록 발표) ※^(2)) Kabryamc, et al: PMI 5 (1973) 122 (3) I.H. Moon and W.J. Huppmann: PMI 6 (1974) 190.
이재성,한스-우베 담스,최범순,이재성,최익영 한국유전학회 2012 Genes & Genomics Vol.34 No.4
Microcystins are cyanobacterial hepatotoxins, and are produced by nonribosomal enzyme complexes, mcy gene cluster. In this study, we report on whole mcy gene clusters from two Korean strains of M. aeruginosa that were blooming in Lake Paldang (FCY-26) and Geum river (FCY-28). Their specific gene locus, amino acid information, and sub-cluster orientation were also characterized in both strains. Both gene clusters are of 55 kb, and also each length, number and the arrangement are identical. Their sequence analysis revealed a cluster of 10genes (mcyA, B, C, D, E, F, G, H, I, and J) involved in the biosynthesis of microcystin, and mcyABC and mcyDEFGHIJ formed two polycistronic operon structures that are transcribed bidirectionally from a central promoter region between mcyA and mcyD. The analysis of SNPs provided different nucleotide composition and amino acid variations in two Korean strains of M. aeruginosa. This approach is useful to develop genetic indicators identifying toxic cyanobacteria and their cyanotoxins,and helpful for a better understanding of the diversities of mcy gene clusters, the biosynthesis of microcystin, and the mediation of environmental parameters causing algal blooming and HABs.
이재성,이재성,김보미,Leda Mirbahai,Angela Mally,J. Kevin Chipman 한국유전학회 2016 Genes & Genomics Vol.38 No.1
DNA methyltransferases (DNMTs) are an enzyme family that catalyzes the transfer of a methyl group to DNA for a wide variety of biological functions. To determine whether the number and composition of the Dnmt gene family affects the 5-methylcytosine (5mc) ratio at the genome level, genome-wide 5mc ratios from three marine animals, the mangrove killifish (Kryptolebias marmoratus), an intertidal copepod (Tigriopus japonicus), and a monogonont rotifer (Brachionus koreanus), were analyzed in each organism after the cloning of Dnmt genes. Lineage- and teleost-specific gene evolution was observed in the vertebrate Dnmt3 gene family, while unique gene expansion was found in the T. japonicus Dnmt1 gene family. However, the rotifer did not have any apparent homologue of Dnmt1 or Dnmt3 in its genome. This gene information was highly supportive of genome-wide 5mc levels in the three marine animals. Therefore, the absence or presence of the Dnmt gene family could be an important evolutionary parameter of how this could affect genomewide epigenetic metabolism.
주문형 떡 제작 자동화를 위한 영상처리 기반 객체 위치 인식
이재성 조선대학교 IT연구소 2022 정보기술융합공학논문지 Vol.12 No.2
최근 다양한 종류의 푸드테크 기기들이 출시되고 있다. 본 논문은 사각형 모양의 떡 위치를 자동 인식한 후 이벤트성 이미지나 문구를 인쇄하는 푸드 프린터를 개발하는 과정에서 영상처리를 이용하여 인쇄 대상 식품의 모양과 정확한 인쇄 위치를 자동으로 인지하는 기술을 연구한다. 개발 초기에 고안한 기본 알고리즘의 문제점들을 면밀히 파악하고 이를 개선하기 위한 방법을 제시한다. 개선 방법을 적용하여 다시 구현한 OpenCV 영상처리 코드에 대하여 성능 평가를 실시한 결과 사각형 모양의 객체 인식률은 100%, 객체의 무게 중심 인식 오차율은 1.7% 이하로 나타나 업계가 요구하는 수준을 여유 있게 달성하였다.
Affect Theory, the Sublime, and the Buddhist Nonduality: Affectus as the Dimension of the True Self
이재성 한국비평이론학회 2018 비평과이론 Vol.23 No.2
Human tendency to stick to reason has been characterized especially as the “Western” thinking mode. Recently, scholars started to gather their heads together and think under the name, the “affect theor” as a discipline that goes against the traditional Western mode of thought. Affect theory has been conducted in many different fields, but the Spinozean-Deleuzean line of thinking is the representative stream. As they say, in the end, it all comes down to affect, with which we can comprehend non-homogenous totality of an entity, which is neither reason nor ordinary emotion and which is the best vision for mankind. For my part, I would like to contribute to the work of advancing affect theory by linking postmodern ethics and Buddhist philosophy for literary studies (not as a religion). I would like to open my discussion of Buddhist philosophy as the a new way of revealing the genuine nature of affect. Of course, my whole discussion is to contribute to literary criticism, and thus I will always be referring back to literary criticism and theory. Toward the end, this paper discusses The Avatamsaka Sutra, which has spiritual power to comprehend the inherent essence of all beings and things to which we can approach with affectus.