해상 누유 확산 예측 프로그램의 개발

韓成義,宋武錫 홍익대학교 산업기술연구소 1995 産業技術 Vol.5 No.-

We investigated various oil-spill models and condensed the integrated information into a prediction model which is applicable to Korean Yellow sea coastal area. As pre- and post -processor of the develope system we adopted an available commercial package. OILMAP which is developed by ASA. Various environmental data can be input through easy menu functions and the current data can also be included as and output from two-dimensiona depth averaged N-S calculations. For the fate of the spilt oil we included effects of spreading advection evaporation dispersion emulsification shoreline interaction and recovery actions such as by using oil fences and skimmers. The developed oil-spill prediction system demonstrates its fast, reliable and robust functioning as an easy handing on-site oil recovery tool.

針葉樹 幼苗의 모잘록병 發生에 미치는 環境要因의 影響

韓茂錫,尹貞求 충북대학교 농업과학기술연구소 1990 農業科學硏究 Vol.8 No.2

The pathogens causing damping-off of coniferous seedlings were isolated from diseased seedlings of the pine, larch and soil of seedlings bed. After isolating and identifying the causal fungi, ecological factors such as temperature affecting mycelial growth, pathogenicity and conidia germination were investigated. In addition, outbreak of damping-off by different growing stages were also investigated. The results obtained were as follows. 1. The causal pathogens identified were Fusarium moniliforme, F. acuminayum, F. graminearum, the unidentified Fusarium spp. and confirmed their pathogenicity on the seedlings of Pinus densiflora and Pinnus thunbergii. 2. Fusarium moniliforme showed the highest frequency among pathogens isolated from diseased seedings, whereas in the soil, F. acuminatum and F. sp. (8706) showed higher frequency than the others. 3. The optimum temperature for mycelial growth the Fusaria was 25℃~30℃, mycelial growth of every species was discontinued at 5℃, the optimum PH for mycelial growth was at 5.5 to 7.5. 4. Optimum temperature for the conidial germination was at 25℃. At 100% of relative humidity the conidial germination was above 94%, but decreasing trend was shown at less than 90%. 5. The percentage of the diseased seedlings in Pinus densiflora and Larx kaempferi by the fertilizer application were not remarkably different, but N fertilizer showed a positive correlation. 6. The outbreak percentage of diseased seedlings on Pinus densiflora and Larix kaempferi was a negative trend according to their age.

Differentiation of Phytoplasmas Infecting Zizyphus jujuba and Paulownia coreana Using PCR-RFLP

Mu Seok Han,Eun Woon Noh,Jeong Koo Yun 한국식물병리학회 2001 Plant Pathology Journal Vol.17 No.4

Improved tolerance to drought by expression of Dhn5 gene in poplar

( Mu Seok Han ),( Eun Woon Noh ),( Young Im Choi ),( Jae Soon Lee ) 한국임학회 2010 한국임학회 정기학술발표논문집 Vol.2010 No.-

Differentiation of Phytoplasmas Infecting Zizyphus jujuba and Paulownia coreana Using PCR-RELP

Han, Mu-Seok,Noh, Eun-Woon,Yun, Jeong-Koo The Korean Society of Plant Pathology 2001 Plant Pathology Journal Vol.17 No.4

The relationships between the phytoplasmas infecting Zizyphus jujuba and Paulownia coreana were investigated by PCR-RELP. The 16S rRNA genes of the phytoplasmas were analyzed and compared with each other after PCR amplification. The amplified bands 1.4 kb in size were analyzed by both restriction digestion and sequencing after cloning into a plasmid vector. In some cases, two different kinds of inserts were observed in the isolates that originated from a single plant. However, many of them appeared to be the amplification products of chloroplastic 16S rRNA gene of host plants. The phytoplasma gene could be differentiated from the chloroplastic gene by restriction digestion of the plasmids carrying the amplification products. Only the recombinant plasmids carrying phytoplasma 16S rRNA gene produced a 1.4 kb band when digested with the enzyme BanII. Of the 52 recombinant plasmids analyzed, 42 appeared to contain inserts that originated from the chloroplastic 16S rRNA gene of the host plants. No variation was detected among 16S rRNA gene of nine phytoplasma isolates infecting Z. jujuba. However, the phytoplasmas infecting Z. jujuba were different from that infecting P. coreana.

Enhanced drought tolerance by expression of hvDhn5 gene in poplar

Mu Seok Han,Eun Woon Noh 한국식물생명공학회 2011 식물생명공학회지 Vol.38 No.3

We transferred Dhn5 (dehydrin5) gene from barley to poplar to determine the effect of its expression on the transgenic poplars. The results from northern blot analysis showed that the expression level of gene varied among the transgenic lines. During their culture on tissue culture media, the transgenic poplars formed vigorous growing callus in the presence of 5% PEG. When the transgenic poplars were growing in pots and witheld watering, they stayed much healthier than nontransgenic poplars. The transgenic poplars showed higher rates of photosynthetic rates, stomatal conductance and evaporation rates under the drought stress, although there was no significant difference in soil water content within the treatments. The relative electrical conductivity of the transgenic poplars after 20% PEG treatment was lower than that of nontransgenic poplars. The results provide evidence that the expression of hvDhn5 gene conferred drought tolerance in the transgenic poplars.

Enhanced drought tolerance by expression of hvDhn5 gene in poplar

Han, Mu-Seok,Noh, Eun-Woon The Korean Society of Plant Biotechnology 2011 식물생명공학회지 Vol.38 No.3

We transferred Dhn5 (dehydrin5) gene from barley to poplar to determine the effect of its expression on the transgenic poplars. The results from northern blot analysis showed that the expression level of gene varied among the transgenic lines. During their culture on tissue culture media, the transgenic poplars formed vigorous growing callus in the presence of 5% PEG. When the transgenic poplars were growing in pots and witheld watering, they stayed much healthier than nontransgenic poplars. The transgenic poplars showed higher rates of photosynthetic rates, stomatal conductance and evaporation rates under the drought stress, although there was no significant difference in soil water content within the treatments. The relative electrical conductivity of the transgenic poplars after 20% PEG treatment was lower than that of nontransgenic poplars. The results provide evidence that the expression of hvDhn5 gene conferred drought tolerance in the transgenic poplars.

루브라참나무의 생장과 재질 - 해부학적 성질 -

한무석 ( Mu Seok Han ),이진리 ( Jin Ri Lee ),김지수 ( Ji Su Kim ),신수정 ( Soo Jeong Shin ),김병로 ( Byung Ro Kim ) 한국목재공학회 2015 목재공학 Vol.43 No.4

본 연구는 5개 종자 산지(Carleton, Simcoe, Chatham, Bancroft, Unknown)의 루브라참나무(Quercus rubra)를 대상으로 해부학적 성질을 조사하여, 이들의 종자산지 간 및 생장속도와의 관계를 규명하였다. 루브라참나무는 환공재로서 공권부는 대형도관이 1∼3열로 배열하다가 공권 외부는 소형도관이 방사상으로 배열하였다. 산지 간에는 조재부 목섬유 길이, 조재부 도관의 직경에서만 차이가 있었다. 생장속도와는 목섬유 길이 및 도관요소 직경에서 만재부는 상관관계가 없고, 조재부는 부의 상관이었다. 도관요소 길이는 생장속도와 조, 만재에서 관계가 없었다. 조, 만재부에서의 구성요소 비율은 목섬유, 방사조직은 만재부에서 높았고, 도관요소는 조재부에서 높았다. 방사조직 높이는 11∼15개 범위였다. This study was carried out to investigate the relationship between anatomical characteristics and growth rate of Quercus rubra from different origins of seed. Anatomical characteristics showed that all Quercus rubra species were ring-porous woods with 1∼3 layers of large pores in earlywood, but the latewood had small pores oriented in radial direction. There were slight differences in libriform fiber length and vessel element diameter in the earlywood among different provenance origins of seeds. In growth rate, the libriform fiber length and vessel element diameter was negative correlation in the earlywood, but not correlative in the latewood, and vessel element length was not correlative in the early and latewood, Volumetric composition of libriform fiber and ray in latewood was higher than those in earlywood, and a higher composition of vessel element was observed in earlywood. Ray height was the range of from 11 to 15 cells.

24년생 루브라참나무의 생장과 재질에 관한 연구 -물리,역학적 성질-

한무석 ( Mu Seok Han ),이창준 ( Chang Jun Lee ),박봉석 ( Bong Seok Park ),김병로 ( Byung Ro Kim ) 한국임학회 2014 산림과학 공동학술대회 논문집 Vol.2014 No.-

종자의 산지가 다른 루브라참나무(24년생)를 대상으로 물리 및 역학적 관계를 조사하여 생장속도와 목재의 재질과의 관계를 규명하였다. 생재함수율은 변재보다 심재가 높은 것으로 나타났고, 산지 간에 차이를 나타냈다. 비중의 경우 심재는 생장이 좋을수록 작아지는 경향을 보였고, 변재는 생장이 좋을수록 커지는 관계를 나타냈다. 전수축률은 산지 간 차이를 나타냈으며, 생장이 좋을수록 수축률과 T/R율은 높아지는 것으로 나타났다. 압축영계수, 휨강도와 휨영계수 및 충격강도는 산지간 차이를 보였으며, 생장이 좋을수록 낮아지는 경향을 보였다. 전단강도는 산지간 차이를 보였으며, 생장이 좋을수록 커지는 경향을 보였다. 경도는 세 단면에서 산지 간 차이를 보였으며, 생장이 좋을수록 커지는 경향을 나타냈다. 5종의 산지가 다른 루브라참나무 중 Bancroft산 종자의 경우가 가장 좋은 수고생장을 보이고, 세 번째의 흉고직경을 나타내며, 압축, 휨, 경도, 전단, 충격강도 모두 우수하여 생장과 재질면을 고려했을 때 현시점에서 가장 우수한 품종으로 판단된다. Relationship between growth rate and wood quality was investigated by physical and mechanical properties with Quercus rubra(24 years old) from five different origin of apricot. In greenwood moisture content, sapwood had higher moisture content than heartwood, and there was difference among different origin of apricot. There were different specific gravity of wood among different origin of apricot. Compared with higher growth rate with higher specific gravity in sapwood, opposite trend was observed in heartwood. There were difference in shrinkage based on origin of apricot, and higher growth rate wood had higher shrinkage and T/R ratio. Compression Young`s modulus, bending strength, bending Young`s modulus, and compact strength was difference among different origin of apricot. Higher growth rate wood had higher tensile strength, and also there was difference amont different origin of apricot. In hardness, 3 different directions had all difference among different origin of apricot, and higher growth rate wood showed higher hardness than others. Based on overall physical and/or mechanical properties and growth rate, apricot from Bancroft was best quality in current.

Genetic variation of growth performances for the 100 open-pollinated families of Maesopsis eminii in west-Java, Indonesia

Kyu-Suk Kang,Seog-Gu Son,Mu-Seok Han 한국육종학회 2012 한국육종학회 심포지엄 Vol.2012 No.07

Maesopsis eminii, known as ‘umbrella tree’ in English, occurs naturally between 6oS and 8oN in tropical Africa. It is a species of moist forests and an early succession species, adapt at colonizing grasslands and disturbed areas in the high forest. It is widely distributed in forest re-growth and remarkably long lived for a pioneer species, attaining over 150 years. M. eminii was introduced into Java, Indonesia in the 1920s and has been widely cultivated in Java, Sumatra and Kalimantan for timber plantations due to its timber value, fast growing and leave usage for fodder. Annual wood production potential is 30 m3/ha in Africa and 40 m3/ha in Indonesia. The final rotations for timber production are 20-30 years in Africa and 10-20 years in Indonesia, and rotations for fuel wood, poles and pulp production are about 8 years. Genetic resources (plus trees) of M. eminii growing in several populations from west Java were collected, and a progeny test of the 100 open-pollinated families was established in west Java, Indonesia. Early results from a field test of M. eminii are reported from the progeny test trial. Seedling height and diameter at root collar (DRC) were measured at 0, 10 and 15 months of ages. Age 0 means the measurement just before the planting. The averages of seedling height and DRC at age 15 months were 134.4 cm and 1.86 cm. Family survival rates were, on average, 65.6% and 62.8% at age 10 and 15 months, respectively. Family genetic variance and replication variance at age 15 months were higher than those at age 10 months. Seedling height was positively correlated with DRC growth and statistically significant at the same ages. The coefficients of genetic variation for seedling height and DRC were ranged from 0.01 to 12.69 and from 1.97 to 13.70. Heritability estimates obtained were 0.44, 0.04, 0.01, and 0.31, 0.01 and 0.02 for seedling height and DRC at age 0, 10 and 15 months, respectively. Family averages of the 10 best and the 10 poorest families for each trait indicated that there were large differences of seedling height and DRC growth among families and between ages. Genetic gain for DRC was expected to be substantial and higher than that for seedling height growth at age 15 months. Those results suggested that growth improvement through the superior family selection of M. eminii could be possible.