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남기흠 ( Gi Heum Nam ),김중현 ( Jung Hyun Kim ),김영철 ( Young Chul Kim ),김진석 ( Jin Seok Kim ),이병윤 ( Byoung Yoon Lee ) 한국환경생태학회 2012 한국환경생태학회지 Vol.26 No.1
한국의 중부에 위치한 평창, 영월 지역은 석회암 지역이며 생물지리학적으로 매우 중요한 지역이다. 2010년 3월부터 10월까지의 조사로 평창, 영월 지역의 식물상을 밝혀 석회암 지역 식물 연구의 기초자료로 활용하고자 한다. 이 지역의 식물상은 134과 503속 1,010종 11아종 110변종 10품종 4잡종의 1,145분류군으로 확인되었다. 환경부 법적보호인 멸종위기야생식물은 7분류군이며, 한국고유종은 50분류군이었다. 식물구계학적특정식물은 238분류군으로 5등급 24분 류군, 4등급 30분류군, 3등급 60분류군, 2등급 45분류군, 1등급 79분류군으로 나타났다. 귀화식물은 82분류군이었으며, 본 조사지에서 다른 지역에 비해 특이하게 분포하는 식물은 53분류군이 확인되었다. 이 중 석회암 지역에서만 분포가 확인되는 식물은 35분류군이며, 격리되어 분포하는 북방계 식물은 15분류군, 해안성 식물은 3분류군이었다. Located in the middle part of the Korean peninsula, Pyeong-chang and Yeong-wol (Gangwon-do) areas are limestone regions that are important biogeographically showing the peculiar flora. In order to manage efficiently endangered and rare plant species, we have investigated flora of these above regions from March to October, 2010. The result of the investigation showed a total of vascular plants of 1,145 taxa; 134 families, 503 genera, and 1,010 species, 11 subspecies, 110 varieties, 10 forms and four hybrids. Among taxa investigated, endangered species designated by the law called ``Protection Law for Endangered wild fauna and flora`` were seven taxa, and 50 taxa were considered to be endemic to Korea. Based on the floristic degrees categorized by the specific distribution of plant species, 24 taxa revealed the floristic degree (FD) V, 30 for FD IV, and 60 for FD III, 45 for FD II and 79 taxa for FD I. The 82 taxa were identified to be naturalized. Of those species investigated in this survey, 53 taxa were identified as specific ones biogeographically as compared to flora of other terrestrial regions; 35 of calcicolous plants, 15 with distribution in the northern part of the Korean peninsula, three with coastal habitats.
남기찬 ( Nam Gi Chan ),곽규석 ( Gwag Gyu Seog ),송용석 ( Song Yong Seog ),연정흠 ( Yeon Jeong Heum ) 한국해운물류학회 2003 해운물류연구 Vol.38 No.-
This study aims at providing a conceptual model for promoting 3rd party logistics in Korea by analysing overseas and domestic logistics companies. Particular attention is paid to the merges and acquisitions among the companies. By the insights derived from the experience of advanced countries and through the empirical survey on the preference for merges and acquisitions of logistics companies in Korea, both the liner shipping company and the container terminal operator are revealed as the most preferred ones leading the merges and acquisitions. The logistics market environment represented by deregulation and freedom for new entry also seems to favor for such merges and acquisitions. Therefore, we suggest that as a conceptual model for promoting 3rd party logistics in Korea.
Vitamin B12 첨가가 담수산 rotifer , Brachionus calyciflorus Pallas 의 내구란의 생산과 부화율에 미치는 영향
권오남(O Nam Kwon),조수근(Soo Gun Jo),박흠기(Heum Gi Park) 한국수산과학회 2001 한국수산과학회지 Vol.34 No.2
본 연구는 vitamin B_(l2)의 첨가에 따른 담수산 rotifer, Brachionus calyciflorus의 유성생식율 및 내구란 생산을 조사하였다. Vitamin B_(12)의 첨가방법은 rotifer의 먹이생물인 농축 담수산 Chlorella에 첨가하여 공급하였고 실험용기는 250mL 삼각플라스크에서 실시하였다. Rotifer의 최고밀도는 vitamin B-(12)의 첨가량이 높을수록 낮게 나타났고 6 ppm구에서 가장 낮은 138개체/mL를 보였다. 유성생식율과 수정률은 vitamin B_(12)의 첨가량이 많을수록 높아 6ppm구에서 각각 63.0%와 89.6%로 조사되었다. mL당 내구란 생산은 1.5ppm구에서 231개/mL로 가장 높게 나타났으나 다른 vitamin B_(12)의 첨가구와의 유의적인 차이는 없었고, Rotifer 10⁴개체당, Chlorella 건중량 (g) 당 내구란 생산량은 6 ppm구에서 각각 11,289개, 121,252개로 가장 높게 나타났다. Vitamin B_(12)의 첨가량에 따라 형성된 내구란의 부화율은 vitamin B_(12)를 첨가한 실험구에서 67.7∼80.9%의 부화율을 보여 첨가하지 않은 대조구 48.2% 보다 높게 나타났다. 따라서 담수산 rotifer, B. calyciflorus의 내구란 생산과 내구란의 부화율에 vitamin B_(12)가 영향을 미친 것으로 판단된다. This study was performed to investigate the effect of vitamin B_(12) addition on the production and hatching rate of resting egg of freshwater rotifer, Brachionus calyciflorus. Different concentrations of vitamin B_(12) was added into concentrated freshwater Chlorella before fed to rotifer and rotifer was cultured in 250 mL flask. The maximum density of rotifer was 138 inds./mL at 6 ppm and it increased with an increase of vitamin B_(12) addition. Mixis rate and fertilization rate of rotifer were 63.0% and 89.6%, respectively, at 6.0 ppm. The production of resting eggs per mL was 231 eggs/mL at 1.5 ppm, but there was no significant difference among vitamin B_(12) addition levels. The highest production of resting eggs per 10,000 rotifers and Chlorella dry weight (g) were 11,289 eggs and 121,252 eggs, respectively, at the 6 ppm. The hatching rate of resting egg was not significantly different among vitamin B_(12) addition levels, but significantly higher than the control (without addition of vitamin B_(12)). These results showed that vitamin B_(12) addition could affect production and hatching rate of resting egg of freshwater rotifer, B. calyciflorus.