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유윤종,류제천,임희대 忠南大學校 産業技術硏究所 2003 산업기술연구논문집 Vol.18 No.2
In this study, 1/8 model tests were carried out to understand the properties of the deep foundation and reinforced deep foundation. Also, carried out tests, divided into weathered rock and soft rock. The results of this study are summarized as follows; When piles is reinforced, reinforcing effect of soft rock is 1l-l2% and weathered rock is 233%. In the side load tests of weathered rock, reinforced effect was 223%. From the comparative study, the reinforced piles have enough reinforcing effect. Though some difference existed by foundations, reinforcing effect is reliable. Therefore reinforced deep foundation is profitable in the configuration of the earth.
Yu, Teng-Qiong,Jiang, Wenzhu,Ham, Tae-Ho,Chu, Sang-Ho,Lestari, Puji,Lee, Jeong-Heui,Kim, Myeong-Ki,Xu, Fu-Rong,Han, Longzhi,Dai, Lu-Yuan,Koh, Hee-Jong The Korean Society of Crop Science 2008 Journal of crop science and biotechnology Vol.11 No.2
Improving eating quality is one of the most important objectives in japonica rice breeding programs in Yunnan Province of China. Eating quality and its relevant traits of nine Korean and 11 Yunnan rice cultivars were comparatively analyzed in this study. The grain shape of most Yunnan japonica rice cultivars have a relatively slender shape and are slightly larger than Korean rice cultivars. Palatability value of cooked rice of Yunnan rice cultivars was significantly lower, while the protein content of Yunnan rice cultivars was significantly higher than that of Korean cultivars. Peak viscosity and breakdown viscosity of the Yunnan rice cultivars were significantly lower, while setback viscosity of the Yunnan rice cultivars was significantly higher than in Korean rice cultivars. Palatability value of cooked rice was negatively correlated with protein content and setback viscosity but positively correlated with peak viscosity, breakdown viscosity, and cool paste viscosity. Through multiple linear regression analysis, an equation for estimating palatability value(PV) of cooked rice based on quality traits was generated as dependent only upon protein content(PC), PV=139.024-(10.865$\times$PC) with an $R^2$ value of 0.822. The results suggest that reducing protein contents should be the major target in improving eating quality of Yunnan japonica rice cultivars through integrated approaches of both cultivar development and appropriate cultural practices. Genetic similarities among cultivars based on DNA markers which had been identified as associated with grain quality seemed not to be directly related to PV.
Imidazole系 殺菌劑 Trifumin에 의한 早熟 3眠蠶의 繭絲質
文在裕,洪性辰,李根九,張承鍾,李義三 한국잠사학회 1994 한국잠사곤충학회지 Vol.36 No.2
In order to investigate the possibility of fine-size cocoon production by the use of imidazole compound, Trifumin, the cocoon and cocoon filament qualities, dietary efficiency and fibroin component were examined. Cocoon size, cocoon weight and cocoon shell weight of trimolter were smaller than those of tetramolter. Cocoon shell weight of trimolter was 58% and 26% of that of tetramolter in the 3rd instar treated larvae and in the 4th instar treated larvae, respectively. Amount of cocoon shell produced per 1g dry matter ingested was 94% and 85% of that of tetramolter in the 3rd instar treated larvae and in the 4th instar treated larvae, respectively. The effects of Trifumin on the reeling tests were different according to the stage of the treatment. When Trifumin was treated at the 3rd instar larvae, reelability of cocoon filament, amount of cocoon filament, size of cocoon filament, reelability percentage and raw silk percentage of cocoon were 100%, 60%,60%,97% and 90%,respectively. When Trifumin was treated at the 4th instar larvae, most of reelability tests were inferior to those of the 3rd instar treated larvae, but reelability percentage was in-creased 13%. The Trifumin treatment did not affect the electrophoretic patterns of cocoon fibroin.
유희종(Hee-Jong Yu),신현덕(Hyun-Deok Sin),안희학(Heui-Hak Ahn) 한국정보과학회 2002 한국정보과학회 학술발표논문집 Vol.29 No.2Ⅱ
본 논문에서는 코드 최적화를 위하여 계산적으로나 수명적으로 제한이 없는 희소 코드 모션 알고리즘을 제안한다. 이 알고리즘은 지나친 레지스터의 사용을 막기 위하여 불필요한 코드 모션을 억제한다. 또한, 본 논문에서는 기존 알고리즘의 술어의 의미가 명확하지 않은 것을 개선하였고 노드 단위 분석과 명령어 단위 분석을 혼용했기 때문에 발생하는 모호함도 개선하였다. 따라서, 제안한 알고리즘은 불필요하게 중복된 수식이나 배정문의 수행을 피하게 함으로써, 프로그램의 불필요한 재계산이나 재실행을 하지 않게 하여 프로그램의 능률 및 실행시간을 향상시킨다.
새로운 B-lactam계 항생물질 (YH-487)의 in uitro 항균활성
원유정,강희일,이종욱,정동효 ( Yu Jung Won,Heui Il Kang,Jong Wook Lee,Dong Hyo Chung ) 한국응용생명화학회 1997 Applied Biological Chemistry (Appl Biol Chem) Vol.40 No.1
To develop novel cephem antibiotics, We have synthesized a new compound, named YH-487, by attaching the thiol and aminothiazole residue to C₃ and C_7 position of 7-ACA, respectively. Several characteristics such as structure, antibiotic spectrum, action mechanism, stability against β-lactamase and synergistic effect were investigated. Anti-bactericidal activity of YH-487 against gram-positive and gram-negative bacteria were superior to that of the other cephem antibiotics. We have examined the action mechanisms of YH-487 using penicillin binding protein (PBP) assay, and found that the bactericidal activity was obtained by inhibiting PBP-1A, PBP-1B and PBP-3. YH-487 showed synergistic effect with gentamicin, tobramycin, and amikacin against Pseudomonas aeruginosa. In addition, YH-487 was effective against Enterobacter cloacae in combination with amikacin. Based on the above observations, YH-487 was classified as a novel third-generation β-lactam antibiotics.
새로운 B-Lactam계 항생물질 YH-487의 in vivo 항균활성
원유정,강희일,이종욱,정동효 ( Yu Jung Won,Heui Il Kang,Jong Wook Lee,Dong Hyo Chung ) 한국응용생명화학회 1997 Applied Biological Chemistry (Appl Biol Chem) Vol.40 No.2
A novel compound, named YH-487, was synthesized by attaching the thiol and aminothiazole residue to C₃ and C_7 position of 7-aminocephalosporanic acid (7-ACA). The therapeutic efficacy on infected animals, pharmacokinetics in vivo and the effect on intestinal microflora of YH-487 were examined. The pharmacokinetics of YH-487 were similar to that of cefotaxime, a third generation β-lactam antibiotics, in rat. Upon in vivo administration, YH-487 was predominantly delivered to kidney, and mostly excreted through kidney without making any metabolites. The therapeutic efficacy of YH-487 to animal infected with E. coli was three times and twenty times higher than that of cefotaxime and cefotiam, respectively. In vivo administration of YH-487 to Sprague-Dawley rats significantly decreased the population of intestinal gram negative species such as Enterobacteria and Bacteroides. However, no significant changes were observed in gram positive species such as Lactobacillus, Bifidobacteria and Staphylococcus. In addition, continuous administration of YH-487 did not increase the possibility to induce resistant strains in intestinal microflora.
이희섭,임원철,이성진,이승현,Heui Jong Yu,이진협,조홍연 한국식품과학회 2016 Food Science and Biotechnology Vol.25 No.3
The aim of the present study was to investigate the protective effect of fermented garlic extract by lactic acid bacteria (LAFGE) against acetaminophen (AAP)-induced acute liver injury in rats. Here we demonstrated that rats treated with LAFGE exhibit resistance to AAP-induced liver injury accompanied by lowered plasma alanine amino transferase levels and decreased proinflammatory responses. This function of LAFGE is linked to its capacity of suppressing AAP-induced apoptosis in the liver, partly via the inhibition of MAPK phosphorylation as well as down-regulation of p53. Our findings reveal that LAFGE modulates the signaling pathways involved in hepatic apoptosis through cellular redox control, as indicated by the inhibition of lipid peroxidation, glutathione and ATP depletion, and the elevation of antioxidant enzyme activities. Taken together, these findings indicate that LAFGE ameliorates AAP-induced liver injury by preventing oxidative stress-mediated apoptosis, thereby establishing LAFGE as a potential supplement in the treatment of AAP-induced liver injury.