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Taeseo Park 한국동물분류학회 2021 Animal Systematics, Evolution and Diversity Vol.37 No.3
To provide better taxonomic information of the genus Nectoneanthes, the two DNA barcode regions of mitochondrial cytochrome c oxidase subunit I (COI) and 16S ribosomal DNA (rDNA) sequences of Nectoneanthes oxypoda and N. uchiwa were determined. In addition, the respective sequences of four nereidid species closely related to Nectoneanthes were retrieved from GenBank for comparison and to estimate intra- and inter-specific genetic distances. The aligned sequence lengths of COI and 16S rDNA were 570 bp and 419 bp long, respectively. The mean intraspecific variation in both markers was less than 1% in all species except for that in COI of H. diadroma (1.87%). The mean interspecific variation between N. oxypoda and N. uchiwa was 12.02% regarding COI and 1.85% regarding 16S rDNA. In contrast, the mean interspecific variation between species of other genera was comparably higher (i.e., genus Perinereis: 20.5% in COI and 8.3% in 16S rDNA; genus Hediste: 13.18% in COI and 2.64% in 16S rDNA), compared with that between the two Nectoneanthes species. This result indicated that these Nectoneanthes species are genetically more closely related than other congeneric species of different genera. The DNA barcoding information on Nectoneanthes species generated in this study provides valuable insights for further biodiversity studies on nereidid species.
Park, Taeseo,Lee, Sang-kyu,Kim, Won The National Institute of Biological Resources 2016 Journal of species research Vol.5 No.3
Two scale worms of the family Polynoidae, Arctonoe vittata (Grube, 1855) and Hyperhalosydna striata (Kingberg, 1856) were found for the first time from Korea by SCUBA diving survey. The two species are free-living organisms or associated commensally with a wide variety of other invertebrates. Specimens of A. vittata were collected from the East Sea and were closely associated with asteroids, holothuroids, gastropods and nudibranchs species. Specimens of H. striata were collected from Jeju-do Island, and of these, one specimen was collected in a tube of eunicid species. The two species can be easily distinguished from their congeners by distinct morphological characteristics as follows: (1) A. vittata has pigmented band near segment eight and two kinds of neurochaetae; (2) H. striata has reddish-brown longitudinal striped elytra. The morphological key characteristics of both species agreed well with their original descriptions and redescriptions. In this study, the descriptions, detailed illustrations and ecological photographs of two species based on Korean materials were provided.
Hee-seung Hwang,Taeseo Park,Won Kim 한국동물분류학회 2018 Animal Systematics, Evolution and Diversity Vol.34 No.2
A gonodactylid stomatopod, Gonodactylaceus falcatus (Forskål, 1775), collected from Jeju Island is reported for the first time in the Korean fauna. The genus Gonodactylaceus, which is also new to Korea, differs from other genera by the presence of a subglobular cornea, five longitudinal dorsal carinae on the telson, and the absence of a movable proximal spine on the propodus of the raptorial claw. Within genus Gonodactylaceus, G. falcatus can be easily distinguished from other congeners by the presence of a bilobed knob on the telson, a rounded anterolateral margin of rostral plate, and a lobe between terminal spines of uropodal protopod. In this paper, detailed descriptions and illustrations of G. falcatus are provided. As a result of this study, seven species of stomatopods including this species are now recorded in the Korean fauna. A key to the species of Korean mantis shrimp is also presented.
Hwang, Hee-seung,Park, Taeseo,Kim, Won The Korean Society of Systematic Zoology 2018 Animal Systematics, Evolution and Diversity Vol.34 No.2
A gonodactylid stomatopod, Gonodactylaceus falcatus ($Forsk{\aa}l$, 1775), collected from Jeju Island is reported for the first time in the Korean fauna. The genus Gonodactylaceus, which is also new to Korea, differs from other genera by the presence of a subglobular cornea, five longitudinal dorsal carinae on the telson, and the absence of a movable proximal spine on the propodus of the raptorial claw. Within genus Gonodactylaceus, G. falcatus can be easily distinguished from other congeners by the presence of a bilobed knob on the telson, a rounded anterolateral margin of rostral plate, and a lobe between terminal spines of uropodal protopod. In this paper, detailed descriptions and illustrations of G. falcatus are provided. As a result of this study, seven species of stomatopods including this species are now recorded in the Korean fauna. A key to the species of Korean mantis shrimp is also presented.
SONG, JI-HUN,PARK, TAESEO,KIM, WON,MIN, GI-SIK Magnolia Press 2017 Zootaxa Vol.4286 No.3
<P>A new benthic isopod species, Arcturina serrulatus sp. nov. (Arcturidae Dana, 1849), is described from South Korea. Additionally, we report Limnoria rhombipunctata Yoshino, Watabe & Ohsawa, 2017 (Limnoriidae White, 1850) from the rhizome of Zostera sp. (seagrass). These are the first records of species belonging to the families Arcturidae and Limnoriidae from South Korea. We provide detailed descriptions of the diagnostic characters of the two species. We also determined their partial sequences of the mitochondrial cytochrome c oxidase subunit 1 (CO1) for molecular diagnosis. </P>
Sang-Hui Lee,Jibom Jung,Taeseo Park 한국동물분류학회 2020 Animal Systematics, Evolution and Diversity Vol.36 No.4
An epialtid spider crab, Naxioides robillardi (Miers, 1882), is known as widely distributed in Indo-West Pacific region include Japanese waters. Four specimens of epialtid crabs were collected from adjacent waters of Jejudo Island and identified as N. robillardi. This species can be grouped into two forms such as N. robillardi form typical and N. robillardi form mammillata according to morphological features of carapace, gastric spine, and chela. Morphological characters of all Korean specimens well agree with the form mammillata in general. In this paper, morphological diagnosis and illustrations of newly collected N. robillardi are provided. DNA barcode sequence of COI region is also determined for the first time.
First record of Hirtomurex nakamurai (Muricidae: Gastropoda) from Korean waters
Lee, Sang-Hwa,Kil, Hyun-Jong,Park, Taeseo The National Institute of Biological Resources 2016 Journal of species research Vol.5 No.3
A single specimen in the subfamily Coralliophilinae in Family Muricidae was collected from Jeju-do by SCUBA diving survey. It was identified as Hirtomurex nakamurai Kosuge, 1985 based on external morphological characteristics. The Coralliophilinae species, commonly known as coral snails, are broadly distributed in tropical and temperate oceans from shallow subtidal zones up to 1,000 m in depth. To date, only four Coralliophila species in the subfamily Coralliophilinae have been reported from Korean waters. Prior to this report, Hirtomurex species has not been reported from Korean waters yet. As a result of this study, a total of five species in two genera of subfamily Coralliophilinae are recorded as Korean mollusk fauna.
전동식 조향시스템의 EMS 검증시험에 관한 각도-인덱스 방식의 실시간 분석 알고리즘 연구
오세룡(SeRyong Oh),최대근(DaeGeun Choi),임태서(TaeSeo Lim) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Power steering system assists the driver of an automobile in steering by directing a portion of the vehicle’s power to traverse the axis of one or more of the roadwheels. There are two types of power steering systems-hydraulic and electric.(A hydraulic-electric hybrid system is also possible) A hydraulic power steering (HPS) uses hydraulic pressure supplied by an engine-driven pump to assist the motion of turning the steering wheel. Electric power steering (EPS) is more efficient than the hydraulic power steering, since the electric power steering motor only needs to provide assistance when the steering wheel is turned, whereas the hydraulic pump must run constantly. But as EPS has high power circuit to generate high torque of the motor, it has Electro-Magnetic Susceptibility(EMS) weakness characteristic. Therefore EMS characteristic of EPS system is critical point. Generally, EMS validation test is performed manually using test JIG and the result is assessed by quick-look analysis method. In the paper, new criteria(real-time analysis algorithm) and validation auto-test model about EMS validation test is suggested. Using the Degree-Index method and test JIG, the EMS validation test is performed automatically and the result is assessed by real-time analysis algorithm.