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김미영,김영수,신용운,권계숙,조영업,김준미,김선후 대한소화기내시경학회 1996 Clinical Endoscopy Vol.16 No.6
A 38-year-old woman was admitted for evaluation of cyst-like lesion of the pancreas, which was incidentally found on physical check up. She has been well until the lesion was found except epigastric pain. On endoscopic retrograde pancreatogram, pancreatic head portion revealed a 2 x 2 cm sized cystic mass with marginal calcification. There was no definitive communication between pancreatic duct and cyatic mass, but amylase level of cystic content was increased. Surgical excision was performed, Microspically, the cystic wall showed flat lining epithelium with dense fibrosis and dysplastic calcification accompanied by chronic pancreatitis of adjacent pancreatic tissue.
김미정, 박효진, 이유영, 김선림, 김정태, 우관식, 권영업, 정일민 忠北大學校 農業科學硏究所 2014 農業科學硏究 Vol.30 No.2
This study was conducted to investigate the pasting properties of waxy corn ‘Ilmichal’ during ripening with different sowing date. Starch content of Ilmichal was increased as matured (p<0.05). Analysis of pasting properties with waxy corn starch using a rapid visco analyser (RVA) showed linear changes in peak viscosity, trough viscosity, final viscosity, breakdown and consistency according to ripening. There were significantly positive correlation between starch content of Ilmichal and peak viscosity (0.39*), trough viscosity (0.58***), final viscosity (0.58***), and consistency (0.57**). Differential scanning calorimerty (DSC). The enthalpy of gelatinization was increased as ripening. But onset and peak temperature were decreased. There were significantly positive correlation between starch content of Ilmichal and onset temperature (0.44*), peak temperature (0.38*), and completion temperature (0.59***), on the other hand, crude protein content presented significantly negative correlation between completion temperature (-0.41*).
중부지역 옥수수 파종기에 따른 생육단계 및 수량성 변화
서종호, 문중경, 정건호, 서민정, 구자환, 박장환, 배환희, 신성휴, 권영업 忠北大學校 農業科學硏究所 2014 農業科學硏究 Vol.30 No.2
Maize hybrids were planted on April 1, April 25, May 20 and June 15 in 2012, 2013 at the experimental paddy and upland fields in Suwon city , respectively to know changes of growth stage and yield according to different planting time. Maize planting on April 1 was not recommended because total growing days at planting on April 1 was not different with that at planting on April 25 due to many days from planting to emergence over 20 days at planting on April 1. Total growing days were not much different among three planting time after April 25 because days from silking to maturity was lengthened though days from planting to silking was shortened at later planting time. Stalk weight was decreased as planting time was delayed, particularly at planting times after May 20 at paddy field by excess water injury during early growth stage. But, grain yield was not low as in May and June. It is needed to introduce early maturity maize variety as Yanganok at late planting for higher grain yield and enough time for soil preparation for next winter crops
Physiological and Protein Profiling Response to Drought Stress in KS141, a Korean Maize Inbred Line
김상곤,Hwan Hee Bae,Hwa Jin Jung,Jin-Seok Lee,Jung-Tae Kim,Tae Hoon Go,Beom-Young Son,Seong-Bum Baek,Young-Up Kwon,우미옥,Seonghyu Shin 한국작물학회 2014 Journal of crop science and biotechnology Vol.17 No.4
Understanding the complex response mechanism of a crop to drought is the major step in the developing of tolerant genotypes. Inour study, to investigate physiological traits and proteome dynamics, an inbred maize (Zea mays L.) line (KS141) was subjected to10 days of water-withholding at the V5 or V6 leaf stage. The subsequent analysis of their physiological parameters revealed adecreased relative leaf water content, Fv/Fm, stomatal conductance, net CO2 assimilation rate, leaf transpiration, and water use efficiency,resulting in severe growth retardation of leaf area, stem length and width, aerial part, and root dry matter at 3 and 10 daysafter withholding water. However, aerial part and root dry matter were little changed during drought stress for 3 days. To understandthe proteome dynamics during the 10-day drought stress in maize leaves, comparative proteome analysis was carried out between thewell-watered and drought-treated leaves. Proteins were extracted using phenol extraction method from leaves with/without droughtstress, and then separated by 2-DE. After 2-DE gel analyses, 14 differentially expressed protein spots were identified by MALDITOFmass spectrometry. Out of 14, eleven and three protein spots were found to be up- or down-regulated, respectively. Interestingly, stress-related proteins such as glutathione S-transferase, abscisic stress-ripening proteins, and pathogenesis-related proteinswere increased by drought stress. Our study may provide molecular mechanisms and selective markers for drought tolerantmaize genotypes