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San Hong,Sangjun Park,Chanil Kim,Hyunjoo Song 한국정보과학회 2022 Journal of Computing Science and Engineering Vol.16 No.4
In this study, a novel orthogonal graph layout algorithm was proposed to efficiently represent the connection relationship between each node in power system data. The proposed layout algorithm is a four-stage algorithm. First, clustering was performed based on the connection relationship between nodes, and the obtained clusters were placed close to squares by using the squarified treemap technique to fully utilize the given space. Next, adjacent nodes were arranged in a snakelike order in each cluster according to the characteristics of the IEEE test system data. The links were then arranged according to the positional relationship of the pairs of connected nodes. Each node had several ports so that links could be distributed evenly according to the direction of the links. A case in which all nodes were arranged orthogonally in an arbitrary manner without performing clustering; a case in which adjacent nodes within each cluster were arranged in arbitrary order after only performing clustering; and a case where adjacent nodes within each cluster were arranged in row-major order after only performing clustering were compared. The results revealed that the proposed method considerably improved edge crossing, edge bending, and edge length.
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이준상(Junsang Lee),김진영(Jinyoung Kim),김산홍(Sanhong Kim),유근규(Guenkyu Yu) 한국철도학회 2013 한국철도학회 학술발표대회논문집 Vol.2013 No.11
서울도시철도 조명제어시스템의 특성은 건설 시 GE, TOSHIBA, NATIONAL 등 외산제품으로 설치되었으며, 시설물의 노후화 진행과 더불어 외산 장비의 유지보수에는 많은 비용과 시간이 소비되고 있다. 서울도시철도공사에는 도시철도 특성에 부합하고 신기술이 접목된 조명제어시스템 국산화 개발을 추진하였다. 개발 시 주요사항으로는 사용자 중심의 PC 기반시스템, 2 중 안정화 시스템, 변화되는 조명시스템에 대응 시스템, 에너지 절감형 시스템으로의 국산화 개발 등이 주요 개발전략으로 추진되었다. Seoul Metropolitan Rapid Transit station light control system during the construction of the characteristic GE, TOSHIBA, NATIONAL, such as the foreign product has been installed, proceed with the aging of the foreign facility maintenance of equipment and a lot of money and time is spent. Seoul Metropolitan Rapid Transit Corporation in accordance with the characteristics of the city railway and lighting control systems with a combination of new technologies to promote localization was Key points in the development of a user-oriented PC-based systems, dual stabilization system, a lighting system in response to changes in the system, energy-saving systems, such as the localization of two major development was promoted as a strategy.
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Shuai Lui,Changguo Luo,Longming Zhu,Renhe Sha,Shenchun Qu,Binhua Ca,Sanhong Wang 한국식물학회 2017 Journal of Plant Biology Vol.60 No.2
The WRKY family, a large family of transcription factors (TFs) found in higher plants, plays central roles in many aspects of biological processes and adaption to environment. However, little information is available on this family in apple (Malus domestica). In the present study, a total of 119 candidate WRKY genes in apple genome were identified and classified into three main groups (Group I–III) based on the structure of the conserved domains. Each group or subgroup showed similar exon–intron structures and motif compositions. The evolution analysis showed that 44 MdWRKY genes clustered into 20 intensive regions (<100 kb) and 78 MdWRKY formed 85 pairs of collinear relationships, suggesting that both tandem and segmental duplications played an important role in the evolution and diversification of the WRKY gene family in apple. Furthermore, the expression of the MdWRKY genes in apple leaves in response to biotic stress (Alternaria alternate) and hormone treatments [salicylic acid (SA), methyl jasmonate (MeJA) and ethephon] was examined by using RNA-seq and qRT-PCR. The results showed that 63 MdWRKY genes had differential expression in their transcript abundance in response to Alternaria alternata apple pathotype infection. Moreover, most pathogen responsive MdWRKY genes were also changed significantly when apple leaves were treated by SA, MeJA or ethephon plant growth regulations, suggesting an interaction between SA, JA and ethylene (Eth) hormone signaling under biotic stress. This work may provide the basis for future studies of the genetic modification of WRKY genes for pathogen resistance in apple.
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