• 제목/요약/키워드: Uljin

검색결과 354건 처리시간 0.026초

Cold Storage of Milt from Four Species of Flatfish

  • Chang Yun Jeong;Chang Young Jin;Lim Han Kyu;Lee Jong Kwan;Park Young Je
    • Fisheries and Aquatic Sciences
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    • 제5권1호
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    • pp.64-74
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    • 2002
  • The proper conditions for cold storage of milt in four species of flatfish were investigated. Various diluents were tested for the preservation of marbled sole, brown sole, starry flounder and olive flounder milt at $1\pm0.5^{\circ}C$ for 7 days. The most effective diluent was $1\%$ NaCl for marbled sole and Stein's extender for brown sole, starry flounder and olive flounder. After 7 days of storage in different dilution ratios (milt: diluent), marbled sole milt diluted with 1:3-10 and brown sole, starry flounder and olive flounder milt diluted 1:1-10 maintained good sperm activity index (SAI). SAI was affected by storage volume and presence of antibiotic. SAI was lower after 7 days storage in the volume of 1.5 mL than in 0.5 or 1.0 mL. SAI after 29 days storage was markedly enhanced by addition of antibiotic in marbled sole (400 ppm gentamicin, 400 ppm neomycin, 200-400 ppm streptomycin), brown sole (600 ppm gentamicin), starry flounder (1,000 ppm gentamicin) and olive flounder (200-1,000 ppm gentamicin, 200-400 ppm neomycin, 200-1,000 ppm streptomycin).

울진원자력발전소(原子力發展所) 자료관리업무(資料管理業務) 전산화(電算化) 연구(硏究)(I) (A Design of Computerizing System for Record Management of ULJIN Nuclear Power Plant)

  • 박용부
    • 정보관리학회지
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    • 제4권1호
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    • pp.154-169
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    • 1987
  • 본 논문은 울진 원자력 발전소 건설현장의 자료관리업무를 검토, 분석하여 전산화 대상업무의 논리체계를 세워 카드장표에 의한 수작업 관리방법을 전산 자동화처리가 가능하도록 시도한 것이다. 마스타화일의 레코드구조는 서지데이타, 자료송부관련데이타, 배부관련데이타, 구역구분데이타, 건설후 자료관리 데이터 등으로 구성하였으며 배부, 화일, 검색업무 및 통계, 보고서 출력업무의 논리체계를 설계하였다. 특히 건설중의 자료관리목적이외에 건설후 자료관리를 위한 색인매개요소로서 시스템코드, 한전설비분류번호, 자재연결코드, 보존기간 등을 건설중의 자료입수 시점에서 입력하도록 설계하여 발전소 운전중의 자료검색요구를 사전에 준비하고자 하였다. 또한 본 연구의 결과는 자료관리시스템과 자재관리시스템 사이에서의 상호참조가 용이하도록 설계하였다.

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Population Dynamics of Pinus densiflora for. erecta at Sokwang-Ri, Uljin-Gun in Southeastern Korea

  • Yun, Chung-Weon;Bae, Kwan-Ho;Hong, Sung-Cheon
    • The Korean Journal of Ecology
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    • 제24권6호
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    • pp.341-348
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    • 2001
  • Population dynamics of the oldest relic stand of Pinus densiflora for. erecta which remains as a status of patch in Sokwang-Ri area, Uljin-Gun, was studied to provide the basic data for conservation of the oldest pine stand in Korea. The upper slope site and ridge site including total 12 plots mainly represented Pinus densiflora for. erecta and Quercus mongolica. These two tree species showed reverse J-shaped distribution. From this information, it was concluded that intensive interspecific competition between two species could be occurring. Age distribution of P. densiflora for. erecta on the sites above middle slope area was indicated bi-modal type or tri-modal type which was known as an age structure of climax forest. Therefore, it was estimated that Pinus densiflora for. erecta population could be continuously maintained in the each patch above middle slope area. In the valley sites, hardwood species such as Q. mongolica, Q. variabilis, Styrax obassia and Acer pseudosieboldianum occupied most part of the under crown-cover area and their seedlings and saplings were developing into the closed upper layer crown because the height of upper layer crown reached about 35 meters and such a high crown height was more suitable for light utilization by plants of under layer. The growth patterns were mainly fluctuated for the entire life time of the oldest tree caused by frequent disturbance. And the initial growth curves of the mature trees and suppressed juvenile trees showed different tendencies along the sites.

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울진원자력발전소(原子力發電所) 자료관리업무(資料管理業務) 전산화(電算化) 연구(硏究)(II) (A Design of Computerizing System for Record Management of ULJIN Nuclear Power Plant)

  • 박용부
    • 정보관리학회지
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    • 제4권2호
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    • pp.139-151
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    • 1987
  • 본 논문은 울진 원자력 발전소 건설현장의 자료관리업무를 검토, 분석하여 전산화 대상업무의 논리체계를 세워 카드장표에 의한 수작업 관리방법을 전산 자동화처리가 가능하도록 시도한 것이다. 마스타화일의 레코드구조는 서지데이타, 자료송부관련데이타, 배부관련테이타, 구역구분데이타, 건설후 자료관리 데이타 등으로 구성하였으며 배부, 화일, 검색업무 및 통계, 보고서 출력업무의 논리체계를 설계하였다. 특히, 건설중의 자료관리목적이외에 건설후 자료관리를 위한 색인매개요소로서 시스템코드, 한전설비분류번호, 자재연결코드, 보존기간 등을 건설중의 자료입수 시점에서 입력하도록 설계하여 발전소 운전중의 자료검색요구를 사전에 준비하고자 하였다. 또한 본 연구의 결과는 자료관리시스템과 자재관리시스템 사이에서의 상호참조가 용이하도록 설계하였다.

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종묘방류 해역에서 채집 된 참전복의 microsatellte marker에 의한 유전 다양성 및 집단 구조 (Genetic Variability and Population Structure of Pacific Abalone Haliotis discus hannai Sampled from Stocked Areas Using Microsatellite DNA Markers)

  • 정달상;박철지;전창영
    • 한국수산과학회지
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    • 제41권6호
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    • pp.466-470
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    • 2008
  • Microsatellite DNA markers were used to investigate the genetic diversity and population structure of Pacific abalone Haliotis discus hannai collected from six locations (Uljin, Ulsan, Daechon, Taean, Wando, and Yosu) where hatchery-produced abalone have been released intensively. There was no distinguishable difference in the observed and expected heterozygosities between the six populations and a cultured population. However, there was a difference in the number of alleles per locus: 12.8 for the cultured population and 13.8 to 15.8 for the six populations. The proportion of stocked abalone ranged from 41.1 to 92.7% for wild-caught populations with a decreasing tendency of alleles per locus for an increasing proportion of stocked abalone. A departure from Hardy-Weinberg equilibrium (HWE) assessed using the Markov chain procedure (P<0.05) was observed in the six populations and cultured population at loci Hdh145 and Hdh5l2. The pairwise Fst test (P<0.05) showed a significant difference between the Uljin and Ulsan populations and four remaining populations (Wando, Daechon, Yosu, and the cultured population), among which the Wando population differed less than the other three populations (Daechon, Yosu, and the cultured population).

동해안 울진 연안 조하대 저서 해조류의 군집구조 (Community Structure of Subtitdal Marine Algae at Uljin on theEast Coast of Korea)

  • 최창근;곽석남;손철현
    • ALGAE
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    • 제21권4호
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    • pp.463-470
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    • 2006
  • Studies have been made of the species composition and variation of benthic marine algae at subtidal zone of Uljin on the east coast of Korea. Destructive method was employed to measure biomass over four seasons (2000-2002). Of 87 marine algae species identified, 11 were Chlorophyta, 29 were Phaeophyta and 47 were Rhodophyta. Dominant species in biomass were Ulva pertusa, Undaria pinnatifida and Sargassum piluliferum in summer, Laminaria religiosa, Sargassum fulvellum and Gigartina tenella in autumn, Codium fragile, Undaria pinnatifida, Sargassum horneri, S. piluliferum and S. ringgoldianum in winter, and Undaria pinnatifida, Dictyopteris divaricata, Sargassum confusum and S. horneri in spring. In general, green algae (Ulva pertusa, Codium fragile) and brown algae (Undaria pinnatifida, Sargassum fulvellum, S. horneri, S. piluliferum) appeared predominantly in the 3, 6 m depths and red algae (Gelidium amansii, Plocamium telfairiae) in the 9, 12 m depths. The barren ground of the rocky shore might provide the decrease of benthic marine algae biomass and species.

Genetic Diversity and Gene Flow Patterns in Pollicipes mitella in Korea Inferred from Mitochondrial DNA Sequence Analysis

  • Yoon, Moongeun;Jung, Ju-Yeon;Kim, Dong Soo
    • Fisheries and Aquatic Sciences
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    • 제16권4호
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    • pp.243-251
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    • 2013
  • Genetic diversity and gene flow patterns in Pollicipes mitella were investigated with a nucleotide sequence analysis of 514 base pairs from the mitochondrial cytochrome c oxidase subunit I gene (COI) in 124 samples collected from six Korean populations. In total, 59 haplotypes were defined by 40 variable nucleotide sites in the COI region. The haplotypes had shallow haplotype genealogy and no geographic associations. All populations had high haplotype diversity (0.909 to 0.979) and low nucleotide diversity (0.0055 to 0.0098). The haplotypes with recently diverged nucleotides were distributed by long-range larvae dispersal among regional populations. The pairwise fixation indices ($F_{ST}$) estimated with the exact test and migration rates indicate that substantial gene flow has occurred among populations as a result of sea currents, except between the Uljin (East Sea coast) and other Korean populations. This suggests that significant genetic differentiation and low migration rates have affected the Uljin population.

위성추적장치를 이용한 구조치료 상괭이(Neophocaena asiaeorientalis)의 이동 모니터링 결과 및 표층수온과의 관계 (Results of Satellite Tag Monitoring and a Preliminary Study of the Influence of Sea Surface Temperature on a Rehabilitated Finless Porpoise Neophocaena asiaeorientalis in Korea)

  • 박겸준;;손호선
    • 한국수산과학회지
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    • 제51권4호
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    • pp.456-460
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    • 2018
  • Little is known about the movements of finless porpoises Neophocaena asiaeorientalis and their relationship with sea surface temperature (SST). A female finless porpoise that was stranded alive on the shore at Busan was rehabilitated for 16 months at the Sea Life Busan Aquarium. The porpoise was released off Geoje Island with a satellite tag on her mid-ridge and tracking data were received for 7 days. The porpoise moved directly to the southern shore of Gadeok Island, where an earlier study reported that finless porpoises were most abundant around the island. The tracking route revealed two other potential primary habitats. The porpoise moved to the middle of the east coast of the Korean Peninsula at Uljin, beyond the distribution boundary known from earlier studies. Satellite infrared images detected a cold water mass off the Uljin coast and the tracking route showed that the porpoise avoided this low-temperature area.