The Variation of Winter Buds among 10 Selected Populations of Kalopanax septemlobus Koidz. in Korea

Kim,Sea-Hyun,Ahn,Young-sang,Jung,Hyun-Kwon,Jang,Yong-Seok,Park,Hyung-Soon 한국자원식물학회 2002 Plant Resources Vol.5 No.3

The objective of this study was to understand the conservation of gene resources and provide information for mass selection of winter bud characters among the selected populations of Kalopanax septemlobus Koidz using analysis of variance(ANOVA) tests. The obtained results are shown below; 1. Ten populations of K. septemlobus were selected for the study of the variation of winter bud characters in Korea. The results of the analysis of variance(ANOVA) tests shows that there were statistically significant differences in all of the winter bud characters among those populations. 2. Correlation analysis shows that width between Height and DBH(Diameter at breast height) characters have negative relationship with all of the characters, as ABL(Apical branch length), ABW(Apical branch width), AWBL(Apical branch winter bud length), AWBW(Apical branch winter bud width), ABT(Apical branch No. of thorns), ABLB(Apical branch No. of lateral bud) and LBL(Lateral branch length), LBW(Lateral branch width), LBT(Lateral branch No. of thorns), LBLB(Lateral branch No. of lateral bud). 3. The result of principal component analysis(PCA) for winter buds showed that the first principal components(PC s) to the fourth principal component explains about 78% of the total variation. The first principal component(PC) was correlated with AWBW, LWBW, and LBL and the ratio of ABL/ABW and LBL/LBW out of 16 winter bud characters. The second principal component correlated with ABL, ABW, ABLB, LWBL(Lateral branch winter bud length), and LBW and the ratio of AWBL/AWBW. The third principal component correlated with ABL, ABW, LWBL, LBL, and the ratio of LBL/LBW. The fourth principal component correlated with LBL and the ratio of LWBL/LWBW(Lateral branch winter bud width), LBL/LBW. Therefore, these characters were important to analysis of the variation for winter bud characters among selected populations of K. septemlobus in Korea. 4. Cluster analysis using the average linkage method based on 10 selected populations for the 16 winter bud characters of K. septemlobus in Korea showed a clustering into two groups by level of distance 1.1(Fig. 3). As can be seen in Fig. 3, Group I consisted of three areas(Mt. Sori, Mt. Balwang and Mt. Worak) and Group Ⅱ contisted of seven areas(Suwon, Mt. Chuwang, Mt. Kyeryong, Mt. Kaji, Mt. Jiri, Muan, and Mt. Halla). The result of cluster analysis for winter bud characters corresponded well with principal component analysis, as is shown in Fig. 2.

Selection of Superior Trees for Larger Fruit and High Productivity in Sorbus commixta Hedl.

Kim,Sea-Hyun,Jang,Yong-Seok,Chung,Hun-Gwan,Choi,Myoung-Sub,Kim,Sun-Chang 한국자원식물학회 2003 Plant Resources Vol.6 No.2

The objectives of this study, an analysis of the variation for leaf and fruit characteristics among the selected ten populations of Sorbus commixta Hedl. could be used for the conservation of gene resources and could provide information to superior trees selection. The results obtained from this study can be summarized as follows; Approximately, the Mt. Sungin population at Ulleung island showed larger values in overall characteristics and populations. On the other hand, Mt. Halla population at Jeju island showed the smaller values of the overall characteristics and populations. ANOV A tests showed that there were statistically significant differences in all leaf characteristics among the populations as well as individual trees within populations. But, for fruit characteristics, differences were statistically significant only among the populations. Cluster analysis using single linkage method based on leaf and fruit characteristics showed that ten selected populations of S. commixta in Korea could be clustered into three groups. Group I is Mt. Sungin at Ulleung island, Group II is Mt. Halla at Jeju island, and Group III comprises Osan, Mt. Kaji, Mt. Duckyoo, Mt. Balwang, Mt. Sobaek, Mt. O-dae, Mt. Jiri, and Mt. Taebaek. The selection level based on major agronomic traits, which are the Number of Fruit per Fruiting Lateral(NFL) over 50, and Fruit Length(FL) and Width(FW) over 10 mm, and Weight of 100 Fruit(WFI00) over 66 g, was applied on 100 sample trees, and five trees were selected. The selection effects from selected trees in NFL, FL, FW, and WF100 were evaluated as 132%, 151 %, 142%, and 264% compared to the mean of those 100 sample trees, respectively. Especially, Ulleung 2 showed excellent values that NFL and WFI00 were 95, and 69 g, respectively, suggesting a promising new cultivar for larger fruit and high productivity.

Characteristics and Breeding of a New Thornless Castor aralia Cultivar, Cheongsong II

Kim,Sea-Hyun,Jung,Hyun-Kwon,Jang,Yong-Seok 한국자원식물학회 2004 Plant Resources Vol.7 No.2

New thornless cultivar of castor aralia(Kalopanax septemlobus Koidz.) was developed and selected in Cheongsong, Prov. of GyeongSangbuk-do during the period from 1994 to 1999 by Korea Forest Research Institute(KFRI). The new thornless cultivar, Cheongsong II is characterized by a thinner outer-bark and soft, wider leaves, and is particularly characterized by thornless stems. This cultivar has a thinner outer-bark(8.82mm) when compared with thorned type trees(13.95mm). It also has a larger leaves than does thorned type trees. Consequently, the new thornless cultivar, Cheongsong II is defined to have thinner bark and longer and wider leaves than do other thorned type trees. thorned type trees.

CASE REPORT : Familial Mediterranean Fever With Complete Symptomatic Remission During Pregnancy

( Kwang Taek Kim ),( Hyun Joo Jang ),( Jae Eun Lee ),( Mi Kang Kim ),( Jun Jae Yoo ),( Gye Yeon Lee ),( Sea Hyub Kae ),( Jin Lee ) 대한장연구학회 2015 Intestinal Research Vol.13 No.3

Familial Mediterranean fever (FMF) is an inherited autosomal recessive disorder, ethnically restricted and commonly found among populations surrounding the Mediterranean Sea. FMF is the most prevalent autoinflammatory disease; is characterized by recurrent, self-limited episodes of fever with serositis; and is caused by Mediterranean fever gene (MEFV) mutations on chromosome 16. We describe a case of adult-onset FMF with complete symptomatic remission during pregnancy, without the use of colchicine. A 25-year-old woman had presented with periodic fever, abdominal pain, and vomiting since she was 21. Her abdominal computed tomography scan showed intestinal nonrotation. She underwent exploratory laparotomy and appendectomy for her symptoms 1 year prior. She had a symptom-free pregnancy period, but abdominal pain and fever recurred after delivery. Mutation analysis of the MEFV gene revealed two point mutations (p.Leu110Pro and p.Glu148Gln). We report an adult female patient with FMF in Korea with complete symptomatic remission during pregnancy. (Intest Res 2015;13:287-290)

싸이클론의 건식 공정으로 생산된 재생 잔골재를 사용한 콘크리트의 중성화 저항성 및 건조수축에 관한 실험적 연구

김병윤,이세현,서치호 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

The purpose of this study was to provide durability data of concrete using recycled fined aggregate which was produced through a dry production with cyclone for making it sure whether it can be put to practical use for concrete. In the experiment. recycled fine aggregate was substitute for natural fine aggregate the rate of 0, 25, 50, 75 and 100% each. The results of the study were as follows; 1. The depth of neutralization was become deeper according to the increase of substitutive ratio of recycled fine aggregate. 2. The performance of length alternation was fallen gradually according to the increase of substitutive ratio of recycled fine aggregate. But, it showed the similar durability with concrete using natural fine aggregate fewer than 25% substitution ratio. Based on the above results, it is concluded that the recycled fine aggregate through the wet production process can be used as fine aggregate on condition that the substitution ration is under 25%.

회수수 안정화제를 사용한 콘크리트의 공학적 특성에 관한 연구

김기정,金光華,이문환,이세현,한천구 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2

In this study is investigated the engineering properties of concrete using stabilizing agent of recycling water in order to suggest a practical use of recycling water. According to the results. as stabilizing agent is added. fluidity and air content varies slightly with W/C, but does not make a big difference. Bleeding is reduced by adding stabilizing agent, and so it decreases by about 40% at the adding ratio of 0.15%. When stabilizing agent is not added, compressive strength decreases in comparison with plain concrete, but increases by adding stabilizing agent, so it is largest at adding ratio of 0.30%(W/C 30%) and 0.15%(W/C 40, 50%). Length change by drying shrinkage is larger than plain concrete in the case of no adding of stabilizing agent, but decreases by the use of stabilizing agent. Therefore, it is thought that when stabilizing agent is added to recycling water, quality deterioration of concrete is prevented, moreover, quality of concrete can be improved.

표면개질 실리카막을 이용한 CO_2 선택투과분리

김성수,최현교,박홍채,김태옥,서봉국 한국환경과학회 2000 한국환경과학회지 Vol.9 No.4

To improve CO_2 permselectivity, a modified silica membrane was prepared by chemical vapor deposition with tetraethoxysilane(TEOS)-ethanol-water, and TEOS-ethanol-water-HCI solution at 300-600℃. The silica was effectively deposited in the mesopores of a γ-alumina film coated on a porous α-alumina tube by evacuating the reactants through the porous wall. In this membrane, CO_2 interacts, to some extent, with the pore wall, and CO_2/N_2 selectivity then exceeds the value of the Knudsen diffusion mechanism, while the membrane derived from TEOS alone has no CO_2 selectivity. The silica membrane prepared from TEOS-ethanol-water-HC1 solution showed that CO_2 permeance was 2.5×10 exp (-7)㏖/s^-1. m^-2. Pa^-1 at 30℃ and CO_2/N_2 selectivity was approximately 3. The CO_2 permeance and selectivity was improved by enlarging the surface diffusion with modification of chemical affinity of the silica pores.

흰쥐 호흡기도내에서 혈소판활성인자에 의한 모세혈관 투과성의 증가시 Nitric Oxide Synthase Inhibitor의 효과

김천규,전시영,김진평,김현성,강재용,황의기 대한이비인후과학회 2000 대한이비인후과학회지 두경부외과학 Vol.43 No.2

콘크리트 바닥판 연속타설에 따른 강상자형교의 거동

구현서,정경섭,정해근,김경남 충북대학교 건설기술연구소 2002 建設技術論文集 Vol.21 No.1

The superstructures of the steel box bridge, which support the vehicle load directly, are composed of two main components; the steel box and the concrete slab, which are designed as a compositely behaving structure. In the composite girder bridges, the concrete pouring procedures cause different bending moments at each location of a girder. The difference in bending moment is also caused by the varied stiffness of the girders. For the open section type of steel girders which is used in many countries, the sequential concrete pouring method is suggested on the basis of the influential lines concept in order to minimize the effect of such moments. However, the effect is insignificant for the closed section steel box girders which are mostly used in Korea. This paper deals with the behavior of closed section steel girder box bridge according to the continuous pouring concrete slab. Both experimental and structural analysis were performed to assess the behavior of the composite steel box girder bridge under construction.

습식 생산방식에 의한 재생 잔골재를 사용한 콘크리트의 중성화 저항성 및 건조수축에 관한 실험적 연구

유명열,김병윤,이세현,심종우 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

The purpose of this study was to provide durability data of concrete using recycled fined aggregate which was produced through a wet production process for making it sure whether it can be put to practical use for concrete. In the experiment, recycled fine aggregate was substitute for natural fine aggregate the rate of 0, 25, 50, 75 and 100% each. The results of the study were as follows; 1 The depth of neutralization was become deeper according to the increase of substitutive ratio of recycled fine aggregate. 2 The performance of length alternation was fallen gradually according to the increase of substitutive ratio of recycled fine aggregate. Hut, it showed the similar durability with concrete using natural fine aggregate fewer than 50% substitution ratio. Bused on the above results, it is concluded that the recycled fine aggregate through the wet production process can be used IS fine aggregate on condition that the substitution ration is under 50%.