• Title/Summary/Keyword: complex collection

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Re-identification of Colletotrichum acutatum Species Complex in Korea and Their Host Plants

  • Le Dinh Thao;Hyorim Choi;Yunhee Choi;Anbazhagan Mageswari;Daseul Lee;Seung-Beom Hong
    • The Plant Pathology Journal
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    • v.39 no.4
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    • pp.384-396
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    • 2023
  • Colletotrichum acutatum species complex is one of the most important groups in the genus Colletotrichum with a high species diversity and a wide range of host plants. C. acutatum and related species have been collected from different plants and locations in Korea and deposited into the Korean Agricultural Culture Collection (KACC), National Institute of Agricultural Sciences since the 1990s. These fungal isolates were previously identified based mainly on morphological characteristics, and a limitation of molecular data was provided. To confirm the identification of species, 64 C. acutatum species complex isolates in KACC were used in this study for DNA sequence analyses of six loci: nuclear ribosomal internal transcribed spacers (ITS), betatubulin 2 (TUB2), histone-3 (HIS3), glyceraldehyde3-phosphate dehydrogenase (GAPDH), chitin synthase 1 (CHS-1), and actin (ACT). The molecular analysis revealed that they were identified in six different species of C. fioriniae (24 isolates), C. nymphaeae (21 isolates), C. scovillei (12 isolates), C. chrysanthemi (three isolates), C. lupini (two isolates), and C. godetiae (one isolate), and a novel species candidate. We compared the hosts of KACC isolates with "The List of Plant Diseases in Korea", previous reports in Korea and global reports and found that 23 combinations between hosts and pathogens could be newly reported in Korea after pathogenicity tests, and 12 of these have not been recorded in the world.

Re-identification of Colletotrichum gloeosporioides Species Complex Isolates in Korea and Their Host Plants

  • Le Dinh Thao;Hyorim Choi;Yunhee, Choi;Anbazhagan Mageswari;Daseul Lee;Dong-Hyun Kim;Hyeon-Dong Shin;Hyowon Choi;Ho-Jong Ju;Seung-Beom Hong
    • The Plant Pathology Journal
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    • v.40 no.1
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    • pp.16-29
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    • 2024
  • The Colletotrichum gloeosporioides species complex includes many phytopathogenic species, causing anthracnose disease on a wide range of host plants and appearing to be globally distributed. Seventy-one Colletotrichum isolates in the complex from different plants and geographic regions in Korea were preserved in the Korean Agricultural Culture Collection (KACC). Most of them had been identified based on hosts and morphological features, this could lead to inaccurate species names. Therefore, the KACC isolates were re-identified using DNA sequence analyses of six loci, comprising internal transcribed spacer, gapdh, chs-1, his3, act, and tub2 in this study. Based on the combined phylogenetic analysis, KACC strains were assigned to 12 known species and three new species candidates. The detected species are C. siamense (n = 20), C. fructicola (n = 19), C. gloeosporioides (n = 9), C. aenigma (n = 5), C. camelliae (n = 3), C. temperatum (n = 3), C. musae (n = 2), C. theobromicola (n = 2), C. viniferum (n = 2), C. alatae (n = 1), C. jiangxiense (n = 1), and C. yulongense (n = 1). Of these, C. jiangxiense, C. temperatum, C. theobromicola and C. yulongense are unrecorded species in Korea. Host plant comparisons showed that 27 fungus-host associations are newly reported in the country. However, plant-fungus interactions need to be investigated by pathogenicity tests.

A Study on the Paradigm Shift to Content Management in the Networked Environment (네트웍환경에서 내용관리로의 패러다임 변화에 관한 연구)

  • Nam Tae-Woo;Moon Kyung-Hwa
    • Journal of the Korean Society for Library and Information Science
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    • v.33 no.4
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    • pp.85-111
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    • 1999
  • This study represents an attempt to forecast the increasingly complex and dynamic interplay between the transformation of media and collection management function in the networked environment. As the importance of electronic media rather than printed media is emphasized, there is a need to shift from the traditional collection management to content management for collection development strategy. In order to satisfy the needs of library users who have thirst for more various information, the traditional function of collection management has limitations. Therefore, we suggest that the future collection management must shift from the traditional collection management to content management.

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A comparative study of Chinese robe styles in Paris and Beijing collections (파리와 베이징컬렉션에 나타난 차이니즈 포복스타일 디자인 비교 연구)

  • Liu, Mu Jin;Yoo, Youngsun
    • Journal of the Korea Fashion and Costume Design Association
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    • v.23 no.1
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    • pp.71-86
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    • 2021
  • The purpose of this study was to compare and analyze the Chinese robe styles of the Paris and Beijing collections from 2014 to 2018 to find the differences between the expressions of European and Chinese designers on the Chinese robe style. The methods of research were a literature review to derive the design analysis items of Chinese robe styles, and a case analysis. The results are as follows. First, both the Paris and Beijing collections showed an increase in use of Chinese robe styles year by year. Second, in the Paris collection, designs using qipao styles from the Republic of China era appeared the most among the robe styles of various Chinese dynasties. Qipao style appeared the most in the Beijing collection too, but the robe styles from the era of Pre-Qin, Qin, Han, Song, Ming, and Qing dynasties appeared more often than in the Paris collection. Third, in the comparison of silhouette type, there were mostly X-type silhouettes in the Paris collection and A-type silhouettes in the Beijing collection. As for neckline and sleeve type, both collections showed stand collars and tube sleeves. Fourth, in color comparison, there were mostly red-based colors in the Paris collection and blue-based colors in the Beijing collection. Fifth, in the comparison of pattern type, there were the mostly plant motif patterns in the Paris collection, and complex patterns in the Beijing collection. In conclusion, it was confirmed that the Chinese robe styles of the Paris Collection expressed a design fused with various styles due to the tendency to respect the diversity of various cultures and of the Beijing Collection emphasized the beauty and ethnicity of traditional Chinese clothing.

Crowdsourced Urban Sensing: Urban Travel Behavior Using Mobile Based Sensing

  • Shin, Dongyoun
    • Architectural research
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    • v.20 no.4
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    • pp.109-120
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    • 2018
  • In the context of ever-faster urbanization, cities are becoming increasingly complex, and data collection to understand such complex relationships is becoming a very important factor. This paper focuses on the lighter weight of the method of collecting urban data, and studied how to use such complementary data collection using crowdsourcing. Especially, the method of converting mobile acceleration sensor information to urban trip information by combining with locational information was experimented. Using the parameters for transportation type classification obtained from the research, information was obtained and verified in Singapore and Zurich. The result of this study is thought to be a good example of how to combine raw data into meaningful behavior information.

Using nanotechnology for improving the mechanical behavior of spherical impactor in sport problem via complex networks

  • Bo Jin Cheng;Peng Cheng;Lijun Wang
    • Steel and Composite Structures
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    • v.49 no.1
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    • pp.31-45
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    • 2023
  • The network theory studies interconnection between discrete objects to find about the behavior of a collection of objects. Also, nanomaterials are a collection of discrete atoms interconnected together to perform a specific task of mechanical or/and electrical type. Therefore, it is reasonable to use the network theory in the study of behavior of super-molecule in sport nano-scale. In the current study, we aim to examine vibrational behavior of spherical nanostructured composite with different geometrical and materials properties. In this regard, a specific shear deformation displacement theory, classical elasticity theory and analytical solution to find the natural frequency of the spherical nano-composite sport structure equipment. The analytical results are validated by comparison to finite element (FE). Further, a detail comprehensive results of frequency variations are presented in terms of different parameters. It is revealed that the current methodology provides accurate results in comparison to FE results. On the other hand, different geometrical and weight fraction have influential role in determining frequency of the structure.

Truncated Complex Moment Problem with Data in a Circle

  • Lee, Sang-Hun;Sim, Jung-Hui
    • Kyungpook Mathematical Journal
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    • v.45 no.2
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    • pp.241-247
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    • 2005
  • Let ${\gamma}{\equiv}\left{{\gamma}_{ij}\right}(0{\leq}i+j{\leq}2n)$ be a collection of complex numbers with ${\gamma}_{00}>0$ and ${\gamma}_{ji}={\bar{\gamma}}_{ij}$. The truncated complex moment problem for ${\gamma}$ entails finding a positive Borel measure ${\mu}$ supported in the complex plane ${\mathbb{C}}$ such that ${\gamma}_{ij}={\int}{\bar{z}}^{i}z^jd{\mu}(z)(0{\leq}i+j{\leq}2n)$. We solve this truncated moment problem with data in a circle and discuss the behavior of data in an extended moment matrix.

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A Study of the Evaluating Factors about the Community for the Planning of the Sustainable Housing Complex (지속가능한 공동주택 계획을 위한 커뮤니티 평가요소에 관한 연구)

  • Jo, In-Sook;Shin, Hwa-Kyoung
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2009.11a
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    • pp.288-292
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    • 2009
  • In development of housing estates, 'Sustainable development' is indispensable method for the quality in our living environment, and minimize any environment problems which treat our life. And the community elements of sustainable housing complex to make it better life in housing complex. The purpose of study is to suggest the evaluation factors sustainability and community for the planning of housing complex. Within this purpose, this study firstly deducing elements of sustainabilty and community. In the study, literature research method are used for data collection. The results of this study are showed as follows: First, the elements of sustainability are composed of social, economic and environment aspects. Second, the elements of community are composed of hardware, software, humanware aspects.

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A Study of the Evaluating Factors of the Community for the Planning of a Sustainable Housing Complex (공동주택 계획을 위한 지속가능한 커뮤니티 평가요소에 관한 연구 - 선행연구를 중심으로 -)

  • Jo, In-Sook;Shin, Hwa-Kyoung
    • Journal of the Korean housing association
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    • v.21 no.1
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    • pp.161-169
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    • 2010
  • In the development of housing estates, 'Sustainable development' is indispensable to achieving quality in our living environments, and to minimize any environmental problems which may threaten our way of life. Developed from the 1970's, sustainable development has become the global paradigm. Determining and improving the community elements of a sustainable housing complex is important in order to improve the quality of life within the housing complex. The purpose of this study is to suggest evaluation factors of sustainability and community for the planning of a housing complex. For this purpose, this study firstly deduce the elements of sustainability and community. In the study, literature research methods are used for data collection. The results of this study are as follows: First, the elements of sustainability are comprised of social, economic and environmental aspects. Second, the elements of community are comprised of hardware, software, and human aspects.

ON NONSINGULAR EMBRY QUARTIC MOMENT PROBLEM

  • Li, Chungji;Sun, Xiaoyun
    • Bulletin of the Korean Mathematical Society
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    • v.44 no.2
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    • pp.337-350
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    • 2007
  • Given a collection of complex numbers ${\gamma}{\equiv}\{{\gamma}ij\}$ $(0{\leq}i+j{\leq}2n,\;|i-j|{\leq}n)$ with ${\gamma}00>0\;and\;{\gamma}ji=\bar{\gamma}ij$, we consider the moment problem for ${\gamma}$ in the case of n=2, which is referred to Embry quartic moment problem. In this note we give a partial solution for the nonsingular case of Embry quartic moment problem.