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김(Pyropia spp.) 3종 유리사상체의 패각 잠입에 대한 패각 종류, 광과 온도의 영향
허진석 ( Jin Suk Heo ),박은정 ( Eun Jung Park ),황미숙 ( Mi Sook Hwang ),최한길 ( Han Gil Choi ) 한국수산과학회(구 한국수산학회) 2021 한국수산과학회지 Vol.54 No.1
To examine the optimal temperature, light intensity, and shell-type for shell-living conchocelis production, we tested the shell infiltration of free-living conchocelis fragments under various environmental conditions. Under a combination of various temperatures (10, 15, 20, 25 and 30°C) and light intensities (1, 5, 10, 20, 40, and 80 μmol m<sup>-2</sup> s<sup>-1</sup>), the optimal infiltration conditions of the evaluated three Pyropia species were 20-25°C and 5-80 μmol m<sup>-2</sup> s<sup>-1</sup> for P. yezoensis, 20-30°C and 20-80 μmol m-2 s-1 for P. seriata, and 20-25°C and 20-80 μmol m<sup>-2</sup> s<sup>-1</sup> for P. dentata. The infiltration efficiency of free-living conchocelis for different shell types was greater in Korean and Chinese oyster Crassostrea gigas shells than that in scallop Argopecten irradians and clam Meretrix lusoria shells. These results suggest that oyster shells are suitable substrates for shell-living conchocelis production. In conclusion, the present results for optimal infiltration conditions for free-living conchocelis of the three examined Pyropia species will contribute significantly to the production of stable shell-living conchocelis.
한국 서해안 학암포 해조상 및 군집구조의 장기모니터링 연구
허진석 ( Jin Suk Heo ),한수진 ( Su Jin Han ),최한길 ( Han Gil Choi ),남기완 ( Ki Wan Nam ) 한국수산과학회 2015 한국수산과학회지 Vol.48 No.6
Macroalgal community structure was seasonally examined at Hakampo (Taean) in western coast of Korea from February 2007 to October 2010. Also, the effects of “Hebei Spirit” oil spill on the seaweed community structure were evaluated. A total of 101 macroalgal species were identified, comprising 12 green, 18 brown and 71 red algae. Species richness ranged 58.65 species with maximal in 2008 and minimal in 2009. Seaweed biomass ranged 75.82.102.06 g dry wt./m2 (mean, 88.78 g/m2) with maximal in 2008 and minimal in 2010. Vertical distribution from the high to low intertidal zone was Neorhodomela aculeata and Polyopes affinis; Corallina pilulifera and Chondrus ocellatus; Sargassum thunbergii and Ulva australis. Coarsely.branched seaweeds comprised the highest proportion of biomass (37.17 g/m2, or 41.86% of the total biomass) and ecological state group I (ESG I) seaweed biomass was between 81.67.85.44%. Also, ephemeral macroalgae including Ulva species sharply increased in species number and biomass within 1.2 year from the “Hebei Sprit” oil spill in the mid and low intertidal zone. Hakampo rocky shore is still good condition as evaluated based on macroalgal species number, biomass, and composition in functional form and ESG I seaweeds.
강양석(Yang-Suk Kang),홍순구(Soon Goo Hong),이영상(Young-Sang Lee),허진석(Jin-Suk Heo) 한국IT서비스학회 2009 한국IT서비스학회지 Vol.8 No.1
It is essential for companies to manage massive data for dealing with large volume of transactions and customers' needs. To this end, the companies have operated data warehouse with many complex tools for data gathering and reporting to the end-users. However, the data from the heterogeneous tools at the various sources cannot be exchanged because of the different interfaces. Therefore, the data cannot be controlled with integrated manner, and furthermore the companies do not focus the quality of data resulting in the data quality problem. Thus, this study suggests how to manage massive data with a metadata. In particular, we investigate current status of metadata management, its appliance, and perspectives. The contribution of this research is to apply the metadata management system to the real world and to suggest its management procedure.
쇠미역사촌과 미역 포자체의 배양 및 야외 개체군의 생장 비교
박서경 ( Seo Kyoung Park ),허진석 ( Jin Suk Heo ),김보연 ( Bo Yeon Kim ),송지나 ( Ji Na Song ),임거영 ( Geo Yeong Lim ),김하니 ( Ha Ni Kim ),최한길 ( Han Gil Choi ) 한국수산과학회(구 한국수산학회) 2011 한국수산과학회지 Vol.44 No.1
The effects of temperature, light, and salinity on the growth of Costaria costata and Undaria pinnatifida juveniles were examined in laboratory cultures. In a cultivation farm, the monthly yield and density were also investigated between December and April for C. costata and between December and March in 2007 and 2008 for U. pinnatifida. The relative growth rates (RGRs) were greater at 20~60 μmol photons m-2s-1 than at low (0~10 μmol photons m-2s-1) and high (100~180 μmol photons m-2s-l) irradiance levels. The optimal growth conditions for the two species were 17℃, 35 psu, 60 μmol photons m-2s-1, and a daylength of 12 h, indicating that C. costata and U. pinnatifida have very similar growth responses to temperature, light, and salinity. However, the growth responses of the two species to various environmental factors were different; C. costata grew faster than U. pinnatifida but the latter species grew well at low salinity. The monthly yield of C. costata and U. pinnatifida increased steadily over the study period, and it was maximal in March for both species, but the yield of U. pinnatifida was greater than that of C. costata.
한국 동해안 독도의 해조상 및 대황(Eisenia bicyclis) 부착기의 생물상1a
박서경 ( Seo Kyoung Park ),이정록 ( Jung Rok Lee ),허진석 ( Jin Suk Heo ),안대성 ( Dae Sung An ),이행필 ( Aeng Pil Lee ),최한길 ( Han Gil Choi ) 한국환경생태학회 2014 한국환경생태학회지 Vol.28 No.6
독도 해역의 해조류는 2013년 5월과 7월에 14개 정점에서 정성채집 하였으며, 대황의 생태학적 역할을 확인하기 위하여 7월과 11월에 23개체를 채집하여 부착기에 서식하는 해조류와 동물을 동정하였다. 대황의 줄기길이와 무게의 회귀식으로 생물량을 측정하였다. 해조류는 녹조류 18종, 갈조류 35종과 홍조류 75종을 포함하여 총 128종이 관찰되었으며, 성긴분기형이 47.66%로 가장 우점하였고 안정된 환경에 서식하는 ESG I그룹에 속하는 종이 91종(71.09%)이었다. 또한, R/P, C/P, (R+C)/P는 2.14, 0.51과 2.66으로 온대성과 혼합성 해조상을 보였다. 대황의 생물량은 23.74kgm-2이고 밀도는 64 fronds m-2로 확인되었다. 한편, 대황의 부착기에서 해조류 12종과 동물 83종(환형 15종, 연체25종, 절지 34종, 극피 3종, 기타 6종)의 1,248개체가 동정되어 생태학적으로 매우 중요한 핵심종으로 확인되었으며, 넓은마디육질꼬리옆새우붙이가 538개체(43.11%)로 가장 우점하였다. 본 연구 결과 독도의 해조류 출현종수는 이전연구에 비해 증가하였고 성긴분기형과 ESG I 해조류가 우점하는 것으로 나타나 현재까지 독도 연안의 환경은 매우 안정된 상태라고 판단된다. Seaweeds were identified after qualitative sampling at 14 stations of Dokdo coasts from May to July 2013 and seaweeds and animals inhabiting 23 Eisenia bicyclis plants were examined to evaluate its ecological role. Biomass was calculated by using regression between stipe length and weight of E. bicyclis. A total of 128 species were identified, including 18 green, 35 brown, and 75 red algae. Coarsely branched form was dominant functional group occupying 47.66% and 91 species (71.09%) were in ESG I group, growing in stable environmental coast. Also, R/P, C/P, and (R+C)/P were 2.14, 0.51, and 2.66, respectively showing temperate and mixed flora. Biomass and density of E.bicyclis were 23.74kg m-2 and 64 fronds m-2. Twelve seaweeds and 83 animal species (15 Annelida, 25 Mollusca, 34 Arthropoda, 3 Echinodermata, and 6 others) were observed from 23 holdfasts and Ericthonius pugnax was dominant taxon having 538 (43.11%) of 1,248 animal individuals. These results indicate that E.bicyclis is a keystone species showing very important ecological role. In conclusion, the number of seaweeds increased because of intensive research and dominance of coarsely branched form and ESG I group seaweeds, representing that environmental condition of Dokdo is still intact.
송지나 ( Ji Na Song ),박서경 ( Seo Kyoung Park ),허진석 ( Jin Suk Heo ),김보연 ( Bo Yeon Kim ),유현일 ( Hyun Il Yoo ),최한길 ( Han Gil Choi ) 한국수산과학회(구 한국수산학회) 2011 한국수산과학회지 Vol.44 No.5
The intertidal benthic macroalgal floras of 19 uninhabited islands were investigated in the Goheung area, South Sea, Korea, in June 2008. Seaweed community structures on the rocky shores of four (Naemaemuldo, Ceoldo, Araedombaeseom, and Jinjioedo) of the 19 islands were also examined. Eighty macroalgal species were identified, including 13 green, 19 brown, and 48 red algae. The maximum number of species was found at Naemaemuldo, with 35 species, and the minimum was at Aredombaeseom, with 21 species. Seaweed biomass ranged from 21.39-76.22 g dry wt/m2, with a maximum at Naemaemuldo, and minimum at Jinjioedo. Sargassum thunbergii was a representative species, distributed widely in the intertidal zone of the four islands. Subdominant seaweeds were Corallina pilulifera and Ulva pertusa at Naemaemuldo and Jinjioedo, respectively. Also, Ishige okamurae was dominant at Ceoldo and Araedombaeseom. Six functional seaweed forms were found at each study site, except for Araedombaeseom, which had four functional groups. On the rocky shores of the four sites, a coarsely-branched form was the most dominant functional group ranging from 44.44-61.90% in species number and 72.42-91. 09% in biomass. In conclusion, among the four study sites, the shore of Naemaemuldo Island had the best ecological status, with the highest number of species, and greatest biomass (mainly brown and red algae) and functional form diversity of seaweeds. Furthermore, on the rocky shore of Naemaemuldo, coarsely branched- and joint calcareous-form seaweeds, which grow in clean and undisturbed environmental conditions, were the representative functional forms.
박미선 ( Mi Seon Park ),유현일 ( Hyun Il Yoo ),허진석 ( Jin Suk Heo ),김영대 ( Young Dae Kim ),최한길 ( Han Gil Choi ) 한국수산과학회(구 한국수산학회) 2011 한국수산과학회지 Vol.44 No.6
Marine algal flora and community structure were examined at four sites at Tongyeong, Korea, from February to December 2009. Eighty-two algal species were identified, including 10 green, 25 brown, and 47 red algae. During the study period, the number of species was highest at the Dukpo (61 species) site followed by the Gajodo (60 species), Yepo (58 species), and Chilchundo (53 species) sites. Seaweed biomass ranged from 578.11 to 678.26 g, with the maximum and minimum at Chilchundo and Yepo, respectively. Dominant species in term of biomass were Sargassum thunbergii at Yepo, Dukpo, and Gajodo and Gelidium amansii at Chilchundo. The vertical distribution from the high to low intertidal zone was Sargassum thunbergii and Chondria crassicaulis ; Sargassum thunbergii and Ulva linza ; Ulva pertusa , Sargassum fulvellum, and Gelidium amansii . Two groups clearly segregated in a cluster analysis, a Yepo/Dukpo group (group A) and a Gajodo/Chilchundo (B), indicating relatively strong differences in similarity. The seaweed community structure of group A was characterized by higher biomass and higher species richness of brown algae than were observed in group B. Additionally, the biomass ratio and the species richness of green algae was lower in group A. These differences in seaweed community structure may have been resulted from the effects of cold effluents.
B형간염 표면항체 양성인 환자에서 간이식 후 B형간염 재발에 대한 예방법으로서 B형간염 면역글로블린과 라미부딘의 효과 비교
이광웅(Kwang-Woong Lee),박재범(Jae Berm Park),조재원(Jae Won Joh),김성주(Sung Joo Kim),송건도(Geon Do Song),최성호(Seong Ho Choi),허진석(Jin Seok Heo),김용일(Yong Il Kim),이병붕(Byung Boong Lee),김정한(Jeong Han Kim),이석구(Suk Koo L 대한외과학회 2001 Annals of Surgical Treatment and Research Vol.60 No.6
납작돌잎(Lithophyllum yessoense)과 진분홍딱지(Hidenbrandia rubra)의 포자방출 및 생장에 미치는 수온의 영향
김영식 ( Young Sik Kim ),남기완 ( Ki Wan Nam ),최한길 ( Han Gil Choi ),송지나 ( Ji Na Song ),박서경 ( Seo Kyoung Park ),허진석 ( Jin Suk Heo ),오지철 ( Ji Chul Oh ) 한국수산과학회 2013 한국수산과학회지 Vol.46 No.3
The effects of temperature on spore release, growth and photosynthetic efficiency of Lithophyllum yessoense and Hildenbrandia rubra were examined. L. yessoense was collected at Galnam and H. rubra was collected at Gyeokpo, Korea. The experimental temperatures were different for spore release (10, 15, 20°C), sporeling growth (10, 15, 20, 25, 30°C) and photosynthetic efficiency (10, 15, 20, 25°C). All other culture conditions were the same: 34psu, 12:12 LD and 50 μmol photon m-2s-1. Spore liberation was maximal at 10°C for L. yessoense and at 20°C for H. rubra. After 14 days, the surface area of L. yessoense was 0.031 mm2 at 25°C and for H. rubra was 0.032 mm2 at 20°C. Sporelings of L. yessoense were a dark-red color and grew in a round shape. In contrast, H. rubra was bright pink and changed from a round shape in the early growth stage to later become flabelliform. Photosynthetic efficiency was highest between 20-25°C in both species. In conclusion, L. yessoense and H. rubra display different physiological features based on the optimal temperatures for spore release and sporling growth.