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장용석 ( Jang Yong Seog ),신만용 ( Sin Man Yong ),정동준 ( Jeong Dong Jun ) 한국농림기상학회 2004 한국농림기상학회지 Vol.6 No.1
N/A This study investigated the structural characteristics of Taxus cuspidate communities on Mt. Hambaek. The vegetation consisted of 9 species in the T₁(tree) layer, 35 species in the T₂(subtall tree) layer, 28 species in the S(shrub) layer, and 69 species in the H(herb) layer. The dominant species of the T₁ layer was Taxus cuspidata and that of the T₂ layer was Acer tschonoskii var. rubripes. The dominant species of the S layer was Tripterygium regelii, and the dominant species of the H layer was Pseudostellaria palibiniana. The diameter distribution of the dominant five species in the T₁ and T₂ layers indicates that these Taxus cuspidata forests may be gradually dominated by Quercus mongolica and by Tripterygium regelii. The composition of biological type was Ph-D₁-R_(5)-e.
고명연,장용석,허준영,안용우,Ko, Myung-Yun,Jang, Yong-Seog,Heo, Jun-Young,Ahn, Yong-Woo 대한안면통증구강내과학회 2006 Journal of Oral Medicine and Pain Vol.31 No.4
The purpose of this study was to investigate whether there were any changes in taste function with buring mouth syndrome(BMS). 133 subjects (31 males and 99 females) were included for the study and they were categorized into 2 groups BMS 33 persons, control 100 persons) and investigated in the Dept. of Oral Medicine, Pusan National University Hospital from April,2005 to February,2006. The electrical taste thresholds were measured using an electrogustometer of 4 different sites in oral cavity (tongue tip, tongue lateral, circumvallate papillar and soft palate). The results were as follows : 1. The electrical taste threshold in BMS group was very significantly low. 2. The electrical taste thresholds in male and female of BMS group were significantly lower each other than those of control group 3. The electrical taste threshold of BMS group according to single/multiple lesions and chronicity were not different. 4. After treatment, electrical taste threshold and NAS decreased more significantly.
김세현 ( Kim Se Hyeon ),장용석 ( Jang Yong Seog ),정헌관 ( Jeong Heon Gwan ),최영철 ( Choe Yeong Cheol ) 한국농림기상학회 2003 한국농림기상학회지 Vol.5 No.3
N/A This study was conducted to reveal the role of meteorological elements on the habitat characteristics and vegetative structure for S. commixta natural populations at Ulleung Island. Potential Evapotranspiration(PET) by elevation of Ulleung Island was estimated using Thornthwaite`s climatology estimating method. Also, Warm Index (WI), Coldness Index (CI) and vegetative composition by elevation were determined. The following results were obtained: The S. commixta trees were mainly distributed from an elevation of 300 m to 900 m. The WI and CI were about 66.8~95.0, -21.5~-7.7, respectively. Water deficit by precipitation and Potential Evapotranspiration (PET) mainly occurred from March to October at all elevations. But water deficits diminished with increased elevation. The apparent species in S. commixta natural populations at Ulleung Island were: 10 tree layer species, 17 subtree layer species, and 25 species in the shrub layer: In the tree layer S. commixta was dominant with the highest value of 46.85, then Fagus crenata 13.43, Ater mono and Tilia anuerensis 12.41 and 12.03, respectively. In the subtree layer A. mono was dominant with the highest value of 13.16, then F. crenata 12.68, Ater pseudo-sieboldianum and S. commixta 11.37 and 10.76, respectively. Dominant species and IV values in the shrub layer were Sava borealis (22.09) and Rhododendron brachpcarpum (10.51). The S. commixta natural forests were in a relatively stable condition because of the even distribution of its various indexes: the species diversity index of Shannon, the evenness index and dominance were 0.6199~1.1390, 0.6199~0.8825 and 0.1852~0.3801, respectively.
위암에서 림프절 미세전이의 면역조직화학적 방법에 의한 측정 및 생존율과의 상관관계
문철,박경규,이문수,허경열,장용석,김재준,이민혁,진소영,이동화,Moon Chul,Park Kyung-Kyu,Lee Moon Soo,Hur Kyung Yul,Jang Yong Seog,Kim Jae Joon,Lee Min Hyuk,Jin So-Young,Lee Dong Wha 대한위암학회 2002 대한위암학회지 Vol.2 No.1
Purpose: The purpose of this study is to identify immunohistochemical evidence of lymph-node micrometastasis in histologic node-negative gastric cancer patients and to evaluate the prognostic significance of lymph-node micrometastasis.Materials and Methods: A retrospective study of 50 gastric cancer patients who underwent curative resections from October 1990 to November 1994 was performed. Two consecutive sections were prepared: one for ordinary hematoxylin and eosin staining, and the other for immunohistochemical staining with Pan cytokeratin antibody (Novocastra, UK). In the univariate analysis, the survival rate was calculated using the Life Table Method, and the multivariate analysis was determined using a Cox Proportional HazardsModel. The statistical analyses of the relationships between the clinicopathologic factors and micrometastases were performed by using a Chi-square test. Results: Of 2522 harvested lymph nodes, 81 ($4.1\%$) nodes and 19 ($38\%$) of 50 patients were identified as having lymphnode micrometastases by using immunohistochemical staining for cytokeratin. The incidence of lymph-node micrometastases was significantly higher in diffuse type carcinomas ($54\%$, P=0.024) and in patients with serosal invasion ($52.2\%$, P=0.05). For patients with lymph-node micrometastases (n=19), the 5-year survival rate was significantly decreased ($73.7\%$, P=0.015). The Lauren's classirication (P=0.021) and the depth of invasion (P=0.035) were shown by multivariate analysis to have a significant relationship with the presence of micrometastases. Multivariate analysis revealed that lymph-node micrometastasis was independently correlated with survival in histologic node-negative gastic cancer patients. Conclusion: The presence of cytokeratin detected lymphnode micrometastases correlates with the worse prognosis for patients with histologic node-negative gastric cancer.
김세현 ( Kim Se Hyeon ),장용석 ( Jang Yong Seog ),정헌관 ( Jeong Heon Gwan ),박형순 ( Park Hyeong Sun ),조계중 ( Jo Gye Jung ) 한국산림과학회 2003 한국산림과학회지 Vol.92 No.5
The objectives of this study, an analysis of the leaf morphological characteristics among the selected ten populations of Sorbus commixta Hedl., could be used fir the conservation of gene resources and could provide information on superior trees selection. The following results were obtained; Approximately, Mt. Sungin population at Ulleung island showed largrr 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. ANOVA tests showed that there were statistically significant differences in all leaf morphological characteristics among the populations as well as individual trees within populations. Correlation analysis revealed that Length of Pinnate(LP) characteristics have highly positive relationship with the Length of Rachis(LR), and the Length of Terminal Leaflet(LTL) characteristics had highly negative relationship when related to the Terminal Leaflet Morphological Index(TLMI : WTL/LTL) characteristics. The results of principal component analysis(PCA) for leaf morphological characteristics showed that the first for principal componentx(PC`s) explained about 66% of the total variation. The first PC was correlated with those characteristics that were mainly related to the Width of Pinnate(WP), LTL, LP, and Width of Terminal Leaflet(WTL). The second PC was correlated with the TLMI, and Length of upper Rachis(LUR), WTL. Therefore, these characteristics were important to analysis of the variation for leaf morphological characteristics among selected popultions of S. commixta. Cluster analysis using single linkage method based on leaf morphological characteristics showed that ten selected populations of S. commixta could be clustered into five groups. Group I is Mt. Halla at Jeju island, Group Ⅱ is Mt. Sungin ar Ulleung island, Group Ⅲ is Mt. O-dae, Group Ⅳ is Mt. Balwang, and Group Ⅴ comprises Osan, Mt. Kaji, Mt. Duckyou, Mt. Sobaek, Mt. Jiri, and Mt. Taebaek. These results corresponded well with that o principal component analysis.