• 디지털융복합연구
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• 제22권1호
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• pp.1-14
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• 2024

본 연구는 제주특별자치도의 탄소중립 실효성 제고를 위헤 도내 초·중·고에서 실시하고 있는 학교 환경교육은 제외하고, 사회 환경교육의 실태를 문헌연구를 통해 파악하여 부족한 점 또는 문제점을 도출하고, 사회 환경교육을 체계적이고 통합적으로 운영하는 방안을 구축하는 데 목적이 있으며, 도출된 방안은 탄소중립 실효성 제고를 위해 환경에 대한 인식 전환과 친환경적 행동 유도의 지침서로 활용할 수 있을 것이다. 연구 결과 제주특별자치도는 현재 위탁 중인 환경교육센터의 내실 있는 운영과 지원을 통해 도내에 분산 운영되고 있는 환경교육 기관·단체 및 전문가 그룹과 협의체를 구축하여 환경교육 정책수립에 필요한 현황 파악, 콘텐츠 개발, 정보공유, 역할 분담과 정기적 소통·공감 및 정책 피드백이 이루어 질 수 있도록 플랫폼을 구축하고 환경문제를 올바르게 인식할 수 있도록 감성을 자극하고 환경문제를 자기화하는 현장을 중심으로 한 현장 환경교육의 필요성을 강조하고 있다.

• 한국어병학회지
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• 제28권3호
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• pp.125-131
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• 2015

본 연구는 기계적 여과 후 자외선 살균처리한 양식장 유입수의 살균효율과 넙치 치어의 질병저감 효과를 평가하였다. 유입해수의 살균효율은 99.27%로 조사되었고, 기계적 여과 및 UV 살균처리 해수로 4개월 동안 사육한 넙치 치어는 대조구에 비하여 20~30%의 폐사율 저감효과가 관찰되었다.

• 한국농촌건축학회논문집
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• 제15권1호
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• pp.47-56
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• 2013

As architecture has a role of vessel that contains human life, architecture of museums in a region must be a vessel that contains identity of the region. Jeju Province possesses excellent natural landscape acknowledged by the world. As such, architectural design of museums in Jeju region, differentiated in terms of natural, humanistic and cultural characteristics from other regions, must include identity of Jeju. Jeju has established and is operating so many museums with different themes that it is referred to as the heaven of museums. In addition, museums as cultural facilities must be the measure of cultural level representing regional identity and perform the role of advance guard that leads architectural culture of the region. Also, such excellent architectural asset is an important landscape element that increases value of the region. Based on Landscape Management Guideline established in 2009 by Jeju Special Self-governing Province under such critical mind, this study will support design problems and improvements of museums through case study and analysis on design characteristics of national and private museums in Jeju. Accordingly, the purpose of this study is to provide basic data to be pursued by future museums that contain identity of Jeju, based upon the results of analysis described above.

• 한국동물위생학회지
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• 제32권4호
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• pp.353-359
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• 2009

Interest in marine organisms as potential sources of bioactive agents has increased in recent years. The red seaweed, Callophyllis (C.) japonica, is abundant in the coastal regions of Jeju Island in South Korea. A previous study shows that C. japonica extracts have antioxidant activity and radioprotective effects. In this study, an methanol extract of C. japonica was tested whether it has antibacterial effects against the bacteria from swine. In vitro antibacterial activities of the crude extracts prepared from the C. japonica using 80 % methanol were tested for inhibitory activity against the Escherichia (E.) coli (S175), Enterococcus (E.) faecium (ATCC 51558), Salmonella (S.) Typhimurium and Staphylo-coccus (S.) aureus (ATCC 25923) by using broth dilution method. All organisms were incubated in brain heart infusion medium containing 1% extract at 0, 4, 8, 12 and 24 hrs. The 3 days-old piglets were fed an experimental diet supplemented with 1% C. japonica for 1 week. And the change of the coliform bacteria in feces were examined after supplement of C. japonica for 1 week. When the inocula containing $10^2{\sim}10^3$CFU/ml of each organism were used the extracts of C. japonica showed various degrees of antibacterial effects on all bacteria tested. The CFU value ($6.3\times10^8$CFU/ml) of C. japonica for E. coli was decreased 30% compared with vehicle controls ($9.0\times10^8$CFU/ml) after 8 hrs incubation. The proliferation rate of E. faecium was inhibited about 68% at 4 hrs, 81% at 8 hrs and 76% at 12 hrs after incubation, respectively. The proliferation rate of S. Typhimurium was inhibited about 96% at 4 hrs, 90% at 8 hrs and 72% at 12 hrs after incubation with extracts of C. japonica. The proliferation rate of S. aureus was inhibited more than 90% each time courses. Conclusively, a red seaweed extract of C. japonica was found to be effective against a number of gram negative and gram positive bacteria such as E. coli, E. faecium, S. Typhimurium, and S. aureus. The number of coliform bacteria was increased in the 1% C. japonica-treated group, as compared to those of controls. This result suggests that C. japonica extracts be added as an effective natural antibacterial agent. The precise mechanism of antibacterial effects and its application on swine industry remains to be further studied.

• 한국토양비료학회지
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• 제50권3호
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• pp.195-202
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• 2017

The volcanic ash soils from the Jeju province have low available phosphate because of the high phosphate fixing power of the soils. Phosphorus fertilizerwas dressed after cultivating green manure crops and before cultivating potatoes in order to investigate potato yields, the available phosphate contents, and phosphorus balance in the soils. Green manure crops cultivated in this study were hairy vetch alone and hairy vetch and rye. During potato cultivation, four treatments were conducted in the experiments; NF (non fertilizer), P fertilizer ($N-P-K=0-25-0kg\;10a^{-1}$), NK fertilizer ($N-P-K=18-0-19kg\;10a^{-1}$), and NPK fertilizer ($N-P-K=18-25-19kg\;10a^{-1}$). There were no differences in the yields of potato stem and tuber from the cultivation plots of different green manure crops. However, in the plots with single-sown hairy vetch and mixed-sown hairy vetch and rye, the yields of potato stem and tuber were higher in the P fertilizer plot than in NF plot. The yield of tuber among the treatments with mixed-sown hairy vetch and rye was the highest in the NPK fertilizer plot. The available phosphate content in soils initially increased with time in all plots, but began to decrease gradually after Oct. 18. The available phosphate contents were high in the plots for phosphate fertilization, and the difference in available phosphate content between non-phosphorus fertilizer plots and phosphorus fertilizer plots increased with time. In the single-sown hairy vetch and mixed-sown hairy vetch and rye plot, the phosphorus balances in NF plot and NK fertilizer plot were very low, while those in the P fertilizer plot and NPK fertilizer plot were high. In conclusion, available phosphate contents in soil and the potato yields were increased by phosphorus fertilization when potatoes planted after cultivating hairy vetch and rye together, compared to hairy vetch alone.

• 한국환경과학회지
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• 제24권2호
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• pp.175-188
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• 2015

For 63 soil series distributed in Jeju Island, natural uncultivated soils in each soil series were collected, and their physicochemical properties and their concentrations of 19 heavy metals including 8 heavy metals which are regulated by Korean Soil Environment Conservation Law, were analyzed. Moreover, the correlations between physicochemical properties and heavy metal concentrations, and between heavy metal concentrations were analyzed. The heavy metals distributed in the higher concentrations and the lower concentrations with arithmetric mean value, were Mn(730 mg/kg) and Ba(493 mg/kg), and Hg(0.146 mg/kg) and Tl(0.096 mg/kg), respectively. The correlations between pH($H_2O$) and heavy metals(Hg, Ni, Co, Se), between pH(NaF) and heavy metals(Hg, Ba, Se, Tl), and between organic matter content and heavy metals(Hg, Tl) were significant at the 0.01 level. From the correlations between heavy metal concentrations, there were 22 where there were significant at the 0.01 level and they showed positive correlation. Among those, the heavy metals showing the correlation higher than r=0.5, were Sb-V(0.878), Mo-Sn(0.867), Co-V(0.654), Co-Sb(0.648), Be-Sn(0.546), and Sn-Tl(0.528).

• Ocean and Polar Research
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• 제39권2호
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• pp.149-158
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• 2017

The opsin family of light sensitive proteins family makes up are the universal photoreceptor molecules of all visual systems in the vertebrates including teleosts. They can change their conformation from a resting state to a signaling state upon light absorption, which activates the G-protein coupled receptor, thereby resulting in a signaling cascade that produces physiological responses. However, this species is poorly characterized at molecular level due to little sequence information available in public databases. We have investigated the opsin family of nocturnal cutlass fish using the whole transcriptome sequencing method. The opsin genes were cloned and its expression in the tissues and organs were examined by qPCR. We cloned 6 opsin genes (RRH, Opn4, Rh1, Rh2, VA-opsin, and Opn3) in retina and brain tissue. It contained the seven presumed transmembrane domains that are characteristic of the G-protein-coupled receptor family. However, short wavelength sensitive pigment (SWS) and long wavelength sensitive pigment (LWS) were not detected in this study. The mRNA expression of the 6 photoreceptor genes were detected in retina and peripheral tissue. Our studies will lead to further investigation of the photic entrainment mechanism at molecular and cellular levels in cutlass fish and can be used in comparative studies of other fishes.

• 건축사
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• 통권512호
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• pp.70-73
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• 2011

• 건축사
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• 통권540호
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• pp.50-55
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• 2014

• 한국어병학회지
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• 제20권1호
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• pp.33-40
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• 2007

제주지역 양식 넙치의 주요 세균성 질병의 일종인 연쇄구균증 원인균 Streptococcus iniae 및 Streptococcus parauberis에 대한 생물학적 특성을 시험하였다.온도별 성장 시험결과 S. parauberis 균주는 10℃ 배양조건에서 성장이 이루어졌으나 S. iniae 균주의 경우는 10℃에서는 성장이 확인되지 않았으며, 용혈성 시험결과에서는 S. iniae 균주의 경우에만 β용혈성을 나타내었다.생화학적특성 시험결과 acetoin production test (VP test), hippurate hydrolysis test (HIP test)에서는 S. parauberis 균주의 경우에만 양성반응을 보여 두 균주사이에 뚜렷한 차이를 보였다.또한 α-D-glucose, D-mannose, D-psicose, D-trehalose, pyruvatic acid methyl ester, glycerol은 두 균주 모두 기질로 이용하였으나 L-lactic acid는 S. iniae 균주만이 이용하였고, β-methyl-D-glucoside의 경우는 S. parauberis 균주만이 기질로 이용하는 것으로 나타났다.병원성 시험결과, S. iniae는 급성감염 형태를 보인 반면에 S. parauberis는 만성 감염형태를 보임으로써 차이를 나타내었다.