• Title/Summary/Keyword: COI

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New Record of the Bigtooth Pomfret Brama orcini (Pisces: Bramidae) from Korea

  • Lee, Woo Jun;Kim, Jin-Koo;Kai, Yoshiaki
    • Fisheries and Aquatic Sciences
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    • v.17 no.4
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    • pp.497-501
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    • 2014
  • A single specimen of Brama orcini (267.0 mm standard length, SL), belonging to the family Bramidae, was collected by purse seine from Jeju Strait, Korea, in December 2013. The specimen is characterized by having 16 gill rakers, 54 lateral line scales, and 36 vertebrae. B. orcini is distinguished from the most similar species, Brama japonica, by the number of lateral line scales (52-54 in B. orcini vs. 65-75 in B. japonica). We propose a new Korean name "Keun-bi-neul-sae-da-rae" for B. orcini.

New record of Juvenile Stethojulis trilineata (Perciformes: Labridae) from Korea, Revealed by Molecular Analysis

  • Bae, Seung Eun;Kwun, Hyuck Joon;Kim, Jin-Koo
    • Fisheries and Aquatic Sciences
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    • v.16 no.4
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    • pp.319-323
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    • 2013
  • A single specimen of a juvenile Stethojulis trilineata was first collected from the coastal waters of Ulsan, Korea, in October 2012. This species is characterized by IX dorsal fin spines, 26 lateral line scales, 25 vertebrae, dark spots between the 10th and 11th dorsal fin rays, and a caudal peduncle region. The new Korean name proposed is "Se-jul-mu-ji-gae-nol-rae-gi" for S. trilineata.

Genetic Characterization based on a rDNA Spacer, ITS2 and mtDNA, mtCOI Gene Sequences of Korean Venus Clam, Ruditapes philippinarum

  • Park, Gab-Man;Chung, Ee-Yung;Hur, Sung-Bum
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2000.05a
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    • pp.497-498
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    • 2000
  • The venus clam, Ruditapes philippinarum, is an aquaculture shellfish mainly distributed in an intertidal zone of East Asia including Korea, China and Japan. The morphological variation of this species is great. In fact, two of the most popular markers used in molecular evolution, mitochondrial DNA (mtDNA) and nuclear ribosomal DNA (rDNA), have quite different properties, which could translate into different consequences of mutation, drift, migration and selection on patterns of geographical variation and molecular divergence. (omitted)

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New earthworm species from NIBR's Jeju-do biosphere compared to historical and new Japanese types (Oligochaeta: Megadrilacea: Megascolecidae)

  • Blakemore, Robert J.
    • Journal of Species Research
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    • v.1 no.2
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    • pp.133-150
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    • 2012
  • Amynthas tralfamadore sp. nov. is described from the Mt Halla, Jeju Island biosphere exhibition housed at NIBR Incheon. This species' taxonomy is problematical since it is similar to Amynthas masatakae (Beddard, 1892) from Japan, itself previously reported from Korea and at one time associated with Amynthas campestris (Goto & Hatai, 1898) and A. parvicystis (Goto & Hatai, 1899), all three variously implicated in prior A. robustus (Perrier, 1872) along with Amynthas aspergillum (Perrier, 1872). Based on reinspection of the London lectotype of A. masatakae-here designated and sketched for the first time-the current solution is for maintenance of all five taxa separately. A closely-related Japanese species-Metaphire ryunome sp. nov.-is comparable to Korean Metaphire reisuiensis (Kobayashi, 1938) comb. nov. Another specimen was identified as Amynthas micronarius (Goto & Hatai, 1898), a new record for Korea. It matches the newly-designated neotype (Tokyo NMST An446) and an annotated synonymy is provided; however, erstwhile synonyms, Amynthas shimaensis (Goto & Hatai, 1899) and A. yamizoyamensis (Ohfuchi, 1935) combs. novae, are briefly redescribed and provisionally restored to the Japanese list. mtDNA COI-5P barcode analyses support species identifications.

Survey of Busan Oligochaeta earthworms supported by DNA barcodes

  • Blakemore, Robert J.;Lee, Seunghan
    • Journal of Species Research
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    • v.2 no.2
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    • pp.127-144
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    • 2013
  • An earthworm survey of Busan metropolitan area unearthed a dozen taxa in four families (including Enchytraeidae). Members of mostly common, cosmopolitan earthworm species-complexes were: Drawida cf. koreana Kobayashi, 1938, Amynthas cf. corticis (Kinberg, 1867), Aporrectodea trapezoides (Dug$\grave{e}$s, 1828) and Eisenia fetida (Savigny, 1826). Also found were Amynthas hupeiensis (Michaelsen, 1895), A. masatakae (Beddard, 1892) and Metaphire ryunome Blakemore, 2012 - the latter a new Korean record. New taxa are: moniligastrid Drawida songae yeongdo subsp. n.; megascolecid Amynthas carnosus roki subsp. n. which is compared to nominal taxon A. carnosus (Goto and Hatai, 1899) from Japan, to A. carnosus monstriferus (Kobayashi, 1936) stat. n. from Korea and to A. lichuanensis Wang and Qiu, 2005 stat. n. from China; plus lumbricid Eisenia japonica vaga subsp. n. deemed an objectively-based molecular taxon on its unique DNA COI gene barcode. Restoration of Eisenia xanthurus (Templeton, 1836) for E. andrei is mooted (in Appendix).

Density-Order Index Rule for Stock Location in a Distribution Warehouse

  • Hwang, Hark;Cha, Chun-Nam
    • Journal of Korean Institute of Industrial Engineers
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    • v.15 no.1
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    • pp.41-50
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    • 1989
  • This paper deals with the problem of space allocation of items within a warehouse. Recognizing the importance of weights associated with material handling, mathematical models are developed for two cases, out-and-back selection and storage retrieval interleaving. It is proved that the density order index rule we proposed generates an optimal solution for the first model. An example problem solved with the pairwise interchange method indicates that the rule is also fairly efficient for the second model. The proposed rule is compared with other assignment rules of warehouse space such as COI rule, space and popularity.

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Direct Transient Stability Analysis for Multi-Machine Power Systems by Using Damping-reflected Energy Functions (댐핑영향을 고려한 에너지함수를 이용한 다기계통 과도안정도해석)

  • Lee, Ki-Je;Choi, Byoung-Kon;Kwon, Yong-Jun;Kim, Hyun-Sung;Moon, Young-Hyun
    • Proceedings of the KIEE Conference
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    • 2003.11a
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    • pp.287-290
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    • 2003
  • 다모선 계통의 정확한 과도 안정도 직접해석을 위해 댐핑영향은 고려해야 할 중요한 요소 중의 하나이나 일반화가 어려워 최근까지 무시되어 왔다. 본 논문에서는 시스템을 나타내는 함수들의 적분 관계식들을 고려함으로써 다모선 계통에서의 댐핑영향을 반영한 에너지 함수를 유도하였으며 유도 과정에 있어 최근 다모선 계통에 보편적으로 적용되고 있는 관성중심(Center of Inertia :COI) 표현법으로 전개를 시도하였다. 유도된 에너지함수를 PEBS(Potential Energy Boundary Surface) 직접법에 적용하여 임계위치에너지를 산출하였으며, 임계고장제거시간을 계산함으로써 과도안정도직접해석법을 수행하였다. 제안된 에너지 함수를 WSCC 3기 9모선 샘플 시스템에 적용하여 댐핑이 고려된 에너지함수가 실제 계통을 보다 정확하게 표현하고 있음을 시뮬레이션을 통해 검증하였다.

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A Study on the Optimal Stowage Planning for car carriers (자동차 운반선의 stowage planning 최적화 연구)

  • Kim, Hyun-Soo;Coi, Hyung-Rim;Jung, Jae-Un
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2009.06a
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    • pp.165-166
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    • 2009
  • The purpose of this study is to develop a model of the optimal stowing plan for car carriers. This model will be used for an integrated model of maritime transportation planning for car carriers with vessel allocation and voyage planning models.

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Phylogenetic Relationships of the Fireflies Co-occurring in Korean and Japanese Territories Analyzed by Luciferase and Mitochondrial DNA Sequences

  • Kim, Iksoo;Kim, Jong Gill;Jin, Byung Rae
    • International Journal of Industrial Entomology and Biomaterials
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    • v.9 no.2
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    • pp.155-165
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    • 2004
  • In Korean Peninsula including neighboring islands and Japanese Islands identical firefly species or the species belonging to same genera occur together in both territories. These geographic firefly species, nonetheless, have never been subject to taxonomic consideration together until recently, lacking clear species status and phylogenetic relationships. A recent serial study of these fireflies using luciferase gene and/or portions of mitochondrial DNA sequences provided some insight into these populations in terms of validity of species name, phylogenetic relationships, and speciation event. In this article, thus, we have reviewed the recent progress on phylogenetic and/or population genetic aspects of these species, i.e., Hotaria-group fireflies, Luciola lateralis, and Pyrocoelia rufa to better understand the firefly species in these regions.