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Lee, Kwang-Il,Moon, Seong-Hwan,Kim, Hyang,Kwon, Un-Hye,Kim, Ho-Joong,Park, Si-Nae,Suh, Hwal,Lee, Hwan-Mo,Kim, Hak-Sun,Chun, Heoung-Jae,Kwon, Il-Keun,Jang, Ju-Woong Ovid Technologies (Wolters Kluwer) - Lippincott Wi 2012 1528-1159) Vol.37 No.6
<P>In vitro experiment using rabbit nucleus pulposus (NP) cells seeded in atelocollagen scaffolds under the stimulation of growth factors.</P>
Ju Sung Im,Ji Hong Cho,Dong Chil Chang,Yong Ik Jin,Young Eun Park,Chung Gi Chun,Dong Un Kim,Hong Seob Yu,Jong Nam Lee,Myung Jun Kim 한국원예학회 2013 원예과학기술지 Vol.31 No.1
This study was conducted to determine the characteristics of quality and yield in potatoes grown at paddy field before rice transplantation during the spring season. Three potato cultivars (‘Jowon’, ‘Haryeong’, and ‘Goun’) were grown in Gangneung (asl 5 m) and Seocheon (asl 20 m). In both locations, weather condition belonged to the fourth zone (spring cropping) in potato production location’s distribution of Korea. Daily mean soil temperature in both the locations was 0.2-0.6℃ lower than air temperature, while soil moisture was adequate level to potato growth in spite of spring drought. TR ratio was not affected by location, but by cultivar. Specific gravity, starch content, dry matter rate, and yield were significantly influenced by location and by cultivar. There was no difference in total tuber number by location, however there was a large gap in marketable tuber yield according to locations and cultivars. There were high negative relationships between yield and main qualities such as dry matter rate and starch content, while high positive correlation was observed between main qualities. It was possible to produce potato before rice transplanting at drained paddy fields located in representative two locations of potato spring cropping and their characteristics in growth and quality were similar to those generally well known in upland cultivation. Paddy field was thought to be more favorable than upland in terms of available soil moisture supply against spring drought. Further research, however, was needed to increase soil temperature and also preliminary review on proper cultivar according to location seemed to be needed for high yield.
Lee, Won-Kyu,Kim, Hye-Jung,Min, Hye-Ki,Kang, Un-Beom,Lee, Cheol-Ju,Lee, Sang-Won,Kim, Ick-Young,Lee, Seung-Taek,Kwon, Oh-Seung,Yu, Yeon-Gyu Korean Chemical Society 2007 Bulletin of the Korean Chemical Society Vol.28 No.9
Proteomic analyses of synaptic vesicle fraction from rat brain have been performed for the better understanding of vesicle regulation and signal transmission. Two different approaches were applied to identify proteins in synaptic vesicle fraction. First, the isolated synaptic vesicle proteins were treated with trypsin, and the resulting peptides were analyzed using a high-pressure capillary reversed phase liquid chromatography/tandem mass spectrometry (cRPLC/MS/MS). Alternatively, proteins were separated by two-dimensional gel electrophoresis (2DE) and identified by matrix-assisted laser desorption ionization mass spectrometry (MALDI-TOF/MS). Total 18 and 52 proteins were identified from cRPLC/MS-MS and 2DE-MALDI-TOF-MS analysis, respectively. Among them only 2 proteins were identified by both methods. Of the proteins identified, 70% were soluble proteins and 30% were membrane proteins. They were categorized by their functions in vesicle trafficking and biogenesis, energy metabolism, signal transduction, transport and unknown functions. Among them, 27 proteins were not previously reported as synaptic proteins. The cellular functions of unknown proteins were estimated from the analysis of domain structure, expression profile and predicted interaction partners.
( Un Gi Hwang ),( Jung Sik Lee ),( Ju Chan Kang ) 한국수산과학회(구 한국수산학회) 2013 Fisheries and Aquatic Sciences Vol.16 No.4
The study was conducted to investigate the responses of the hepatic microsomal cytochrome P450 monooxygenase system in the rock bream Oplegnathus fasciatus after chronic exposure to 0, 1, 2, 4, and 8 μg/L tributyltin (TBT) concentrations for 4 weeks. Hepatic cytochrome 450 content and ethoxyresorufin O-deethylation (EROD) activity were found to significantly increase in fish treated with the higher concentration of TBT (≥4 μg/L); however, no significant changes were observed in penthoxyresorufin Odeethylation (PROD) activity in all treated groups compared to the control group. These findings suggest that exposure to a low TBT concentration (≥4 μg/L) has the potential to induce cytochrome 450 content and EROD enzyme activity in hepatic tissue inthe rock bream.
Study on Backwash Cycle of the Rapid Sand Filter (RSF) in the Nutrient Solution Recycling System
( Ju Young Lee ),( Hyoung Seok Kim ),( Soo Hyun Park ),( Un Suk Lee ) 한국농업기계학회 2018 한국농업기계학회 학술발표논문집 Vol.23 No.2
Recirculation of nutrient solution is one of the most reasonable and best choices to prevent surface water and undergroundwater contamination from large-scale agricultural complex based on hydroponic cultivation system. There are several potential problems that may arise due to insuffient backwash cycling process used to disinfection of nutrient solution in the rapid sand filter of hydroponic recycling system. The rapid sand filter is a type of filter used to remove particles and some of bacteria in the hydronic recycling system. However, in the greenhouse, the clear criteria for backwashing cycle period have been not well known in the system. The objective is for the clear criteria of backwashing cycle period for economical operation and efficient management. As a result of this, the study has led to the design and construction of rapid sand filter to meet the water quality demand. For the test, the experiment had been performed in the smart farm test site, Gangneung. In testing method, the RSF manufactured by UDI was used. the raw water was used as the nutrient solution for tomato growth. The raw water was passed through UDI RSF. The raw water and the treated water were analyzed for water quality parameters and pressure in the RSF. The parameters were pH, electrical conductivity, TDS, Total solids, Turbidity, Hardness and pressure.
Effect of Girdling on the Fruit Quality and Harvest Date of the 'Shigyoku' Grapes
Lee, Seok-Ho,Lee, Jae-Wung,Kim, Hyun-Ju,Kim, Young-Ho,Lee, Ki-Yeol,Shin, Un-Dong,Kim, Hag-Hyun The Plant Resources Society of Korea 2010 한국자원식물학회지 Vol.23 No.3
The present study was carried out to elucidate the effect of girdling on the quality and harvest date of the 'Shigyoku' grapes. Among girdled vines, the interval from full bloom to harvest date was 77 days; this was as much as seven days shorter in vines receiving a 20% girdling treatment. With regards to fruit characteristics, significant differences were observed in cluster length, berry number, and berry weight in vines that received girdling treatments. There were also significant differences in cluster weight; 468.2 g, 491.6 g and 504.9 g in the control group, 10% girdling group, and 20% girdling group, respectively. Thus, the use of girdling treatments is an effective approach to increasing cluster weight by 5% in the 10% girdling treatment and 8% in the 20% girdling treatment. The 10% girdling treatment showed significant difference in terms of titrable acidity; in fact, the overall titrable acidity was relatively high among all the girdling treatments. The concentration of anthocyanin increased in 20% girdling treatment, but there were no significant differences in anthocyanin concentration among girdling treatments. Berry color developed rapidly in vines that received girdling treatment.