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Kil, Gyoung-Sub;Lee, Mu-Guen;Lee, Kyung-Won;Cho, In-Hyun
- Aerospace Engineering and Technology
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- v.6 no.2
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- pp.188-196
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- 2007
A composite case was designed to satisfy the required condition of KSLV-I kick motor system. we performed the structure and combustion tests to insure the reliability of the case before the production of the flight model. The hydraulic, vacuum and non destruction testes as the structure test were carried out to confirm the strength of the components of the case and the characteristics of the thermal and structure were investigated through the ground combustion test.
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최재영;김우진
- Journal of Sericultural and Entomological Science
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- v.38 no.2
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- pp.144-149
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- 1996
To develope the baculovirus expression vector system (BEVS) using Spodoptera exigua nuclear polyhedrosis virus (SeNPV), we characterized the polyhedrin of SeNPV. The SeNPV polyhedra was irregular and composed of the major protein molecular weight of 30 kDa determined by electronmicroscopy and SDS-AGE analysis, respectively. The nucleotid suquences of 876 bases including the coding region of polyhedrin gene was determined and it was revealed that the polyhedrin gene is located within Xho I 3.0Kb and Nco I 6.0 Kb by Southern blot analysis, respectively. Also, the Xho I 3.0 Kb and the Nco I 6.0 Kb fragments were cloned and restriction enzyme map of these clones were determined.
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이성욱
- Korean Journal of Microbiology
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- v.35 no.3
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- pp.211-217
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- 1999
Effects of subsh-ate RNA configuration on the tians-splicing reactcon by group I intron ribozyme of Tetralzynzena thern\ulcornerophila were analyzed with substrate RNAs which have been generated to have very stable structures with stem-loop. RNAinapping strategy was perfo~med in vivo as well as in virro to search the mosl accessible siles to the ~irms-splicing ribozymes in the substrate RNAs. Sequences present in the loop of the target RNAs have shown to be well recognized by and reacted with group I inlron ribozymes while sequences present in the stein do not. Thesc results were confirmed with the experiments of trans-cleavage and rmnssplicing reactmn with ihe specific ribozyines recognizing those sequences. Moreover, sequence analysis of the trans-splicing products have shown that irons-splicing reaction can proceed with high fidelity. In conclusion, the secondary structure of substrate RNAs is one of the most important factors to detemine the ribozyme activity.
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Dong, Xinlin
- Korean Journal of Heritage: History & Science
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- v.45 no.3
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- pp.4-27
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- 2012
The five capital(五京) was installed in the $Li{\acute{a}}o$(遼) Dynasty. $Sh{\acute{a}}ngj{\bar{i}}ng$(上京) was the main capital city of the $Li{\acute{a}}o$(遼) Dynasty. $Zh{\bar{o}}ngj{\bar{i}}ng$(中京) was the second capital(陪都); and the other three was the capital city with symbolic meaning. The layout of $Sh{\grave{a}}ngj{\bar{i}}ng$ was the '日-shaped plan; this was newly advent structure of ancient Chinese capital city system. $Zh{\bar{o}}ngj{\bar{i}}ng$(中京) was surrounded by multiple ramparts influenced by the $Bi{\grave{a}}nli{\acute{a}}ng$ Fortress (?梁城). Three capitals, Nanjing(南京), $X{\bar{i}}j{\bar{i}}ng$(西京) and $D{\bar{o}}ngj{\bar{i}}ng$(東京), were reconstructed on the foundation of the previously constructed town in $T{\acute{a}}ng$(唐) or Bohai(渤海) Fortress (舊城). The structure and Planning of $Sh{\grave{a}}ngj{\bar{i}}ng$(上京) in the $Li{\acute{a}}o$(遼) Dynasty, had significantly influenced in the capital city planning of the $J\bar{i}n$(金), $Yu{\acute{a}}n$(元) and Qing(淸) Dynasties of China
https://doi.org/10.22755/kjchs.2012.45.3.4 인용 PDF

Bae, Myung-Nam;Kim, Yang;Kim, Un-Sik
- Korean Journal of Crystallography
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- v.6 no.2
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- pp.118-124
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- 1995
The crystal structure of an iodine sorption complex of vacumm-dehydrated Ag+ and Ca2+ exchanged zeolite A(a=12.174(3)Å) has been determined at 21℃ by single-crystal X-ray diffraction techniques in the cubic space group Pm3m. The crystal was prepared by flow method for three days using exchange solution in solution in which mole ratio of AgNO3 and Ca(NO3)2 was 1:150 with total concentration of 0.05 M. The complex was prepared by dehydration at 360℃ and 2×10-6 Torr for 2 days, followed by exposure to about 14.3 Torr of iodine vaporat 80℃ for 24 hours. Full-matrix least-squares refinement converged to the final error indices of R1=0.082, R2=0.068 using 122 reflections for which I > 3σ(I). Two Ag+ ions, 1.1 Ag+ ions, and 4.45 Ca2+ ions per unit cell are located on three different three-fold axes associated with 6-ring oxygens. Two Ag+ ions per unit cell are in the large cavity, 1.399(4)Å from the (111) plane of three oxygens. Another 1.1 Ag+ ions are found at opposite sites. Six iodine molecules are sorbed per unit cell. Each I2 molecule approaches a framework oxide ion axially (O-I=3.43(2)Å, I-I=2.92Å, I-I-O;166.1(3)°), by a charge transfer complex interaction. Two Ag+ ions make a close approach to the iodine molecules (Ag-I ; 2.73(2)Å).
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