25(6)-21(김유곤).fm
|
|
- 해수 내
- 8 years ago
- Views:
Transcription
1 Printed in the Republic of Korea "/"-:5*$"- 4$*&/$& 5&$)/0-0(: Vol. 25, No. 6, , Study on stability test of in process sample of recombinant Protein A Yoo Gon Kim, Woo Jong Lee, Chan Hee Won 1 and Chul Soo Shin 2 Korea Institute of Industrial Technology GyeongGi Bio-Center, 864-1, Lui-Dong, Yeongtong-Gu, Suwon-City, Gyeonggi-Do, Korea Department of Environmental Engineering, Chonbuk National University Advanced Protein Technologies(Co.) (Received September 26, 2012; Revised November 30, 2012; Accepted November 30, 2012) w " œ x w ½ š Á Á Á w», 1 w y œw 2 Advanced Protein Technologies(Co.) Abstract: This study is to investigate the issues on how to secure stability during the purification process for the production of recombinant protein A. The final recombinant protein A is produced by passing through the cation exchange column (SP) and the anion-exchange column (Q) during the production process, for which the samples produced by the step-by-step processes can be exposed to trouble in securing stable storage in case the next process cannot be taken within the proper time period. Accordingly, this study aims to evaluate the proper storage conditions and length of time when storing samples produced in the production process. That is, in this study, how to store fair samples, how long the storage period should be set up, and how to evaluate the security of its quality depending on time are dealt with. The items to be experimented with were enodotoxin, SDS-PAGE, HPLC purity and concentration. Experimental results showed that after passing the cation exchange column, when stored at 4 o C or room temperature, SDS-PAGE showed a major, endotoxin is 5.0 Eu/mg or less, and concentration is on average of 8.21 to 8.24 mg/ml and RSD% 0.10~0.62%. In addition, HLPC purity showed somewhat stable results; at the HPLC purity 214 nm, the average is 99.24% to 99.37% and RSD% is 0.22~0.29%, while the average is 89.72% to 89.80% and RSD% 0.62~1.26% at 280 nm. On the contrary, after passing the anion exchange column, when stored at 4 o C or room temperature, SDS-PAGE revealed the major, endotoxin is 0.5 Eu/mg or less, and concentration is on average of 5.59 mg/ml and RSD% 0.03~0.10%. when it comes to HLPC purity, the result showed that at the HPLC purity 214 nm, the average is 99.74% and RSD% is 0.10~0.11%, while the average is 96.16% to 96.85% and RSD% 0.72~1.13%. In conclusion, the stability of fair samples of recombinant protein A during the manufacturing process could be obtained without substance decomposition for 7~8 days at 4 o C or 20~21 days at room temperature. Corresponding author Phone : +82-(0) Fax : +82-(0) kyg00789@hanmail.net 483
2 484 Yoo Gon Kim, Woo Jong Lee, Chan Hee Won and Chul Soo Shin : w A w» w œ, œ ye (SP) ye (Q) mw w z w A w, œ œ ƒ w w y ƒ š. œ w š w., œ» y t sƒ w. xw m, SDS PAGE, HPLC š. x ye m z þ (4 o C), SDS PAGE major, m 5.0 Eu/mg w, s³ 8.21~8.24 mg/ml, RSD% 0.10~0.62%, š HPLC 214 nm s³ 99.24~99.37%, RSD% 0.22~0.29%, 280 nm s³ 89.72~89.80%, RSD% 0.62~1.26% ùkü. e m z þ (4 o C), SDS PAGE major, m 0.5 Eu/mg w, s³ 5.59 mg/ml, RSD% 0.03~0.10% š HPLC 214 nm s³ 99.74%, RSD% 0.10~0.11%, 280 nm s³ 96.16~96.85%, RSD% 0.72~1.13%.» x w A œ 4 C o 7~8 š 20~21 w p y. Key words: recombinant protein a, stability, endotoxin, SP, Q, HPLC x rprotein A œ x w., ye ye myw œ 4 C o y w ƒ š w, xw m, SDS PAGE, HPLC, x ww. 3FDPNCJOBOU 1SPUFJO " Protein A Staphylococcus aureus x (natural) l w wxk(recombinant)ƒ t y px w w v (Repligen) DNA sww wx 2009 ¾ y x v l w ù px ƒ š j w y wì š. wr w wì ƒ v l t yƒ 4 (USP) š. p w (monoclonal antibody) s, s ƒ w ü û w. j w ƒ w w, j w œ l j w k szw» w w ey (antibody affinity ligand) v l (protein A) w j m v(chromatography)ƒ t k š š protein A w s l w 95% ƒ ƒ wš z. w ey protein A, G, L, v l ƒƒ kv gf (Staphylococcus aureus) p mgf (Streptococcus sp.) w ey ƒ w (immunoglobulin G, IgG) v (constant region, Fc) ey ƒ v l rmpp mg f (Peptostreptococcus magnus) w eq p (kappa light chain) ey š p eq p I, III, IV w w w ƒ w scfvù Fab w r (antibody fragment) w (Fig. 1, Table 1). 1 x t t x w w t x» w w t w» w Analytical Science & Technology
3 Study on stability test of in process sample of recombinant Protein A 485 Table 2. Production process of rprotein A Fig. 1. Structure of antibody domain and affinity ligand. Table 1. Affinity ligand of monoclonal antibody used on purification Ligand Origin microbe Binding domain Protein A Staphylococcus aureus Fc region of IgG Protein G Streptococcus sp. Fc region of IgG Protein L Peptostreptococcus magnus kappa light chain of IgG š. ù t y, y, Ÿ ( ) y w, w y wš w» w w w v. w t z t w e š w ( z)» w w. t» w» w, y t sƒw x w. t x ƒ ƒ xw. š wš þ t 5±3 o C, þ t -20±5 C ³ w o š. 2-5 w " œ (E.Coli) w z w cell cell lysis w z y e (SP Column) w z y e (Q Column) z (UF) w. œ w Table 2 ù kü. 6,7 y j m v y j m v ƒ ƒƒ w w w» ƒ» w,, w. y j m v v w e ƒ w,»» ƒ. y ph j w. š yj m v y ( ) y y 2 ƒ, ƒƒ y (Na +, Cl )» w. (+) w» ( ) w ƒ ( y ) w j š, ( ) w (+) w ƒ ( y ) w k. w w j» w. ww ( ) w w l w w. 8 m ƒ w ³ m. ³ m ³ s s Vol. 25, No. 6, 2012
4 486 Yoo Gon Kim, Woo Jong Lee, Chan Hee Won and Chul Soo Shin (lipopolysaccharide) w. ³ s td w. m x ³ w m w w x, x ³ w m x y yw y j» w w. w x w» w ù. 9 x» x HPLC system Waters HPLC w, Column Phenomenex mm (BioSep- Sec-S2000) wš UV GE GeneQuant w. Endotoxin Gel Clot LONZA, Limulus Amebocyte Lysate PYROGENTPlus Single Test Kit š Electrophoresis system BIO-RAD PowerPac, Invitrogen Novexminicell & XCell SureLock w, SDS Pre made gel KOMA 4-12% Tris, KG5012 š Autopipete (20~1000 µl), Incubator, Volumetricflask, ph meter, Clean bench x» w. )1-$»» Sol. 1, 0.3 M Dibasic anhydrous sodium phosphate (21.3 g/500 ml water), Sol. 2, 0.3M Monobasic anhydrous sodium phosphate (18.0 g/500 ml water) ƒƒ Sol ml 1 L f š phƒ 7.0 ¾ Sol. 2 z 0.45 µm membrane filter w. q 214 nm, 280 nm (Mode: Dual), e L35 (BioSep-Sec-S2000), 1 ml/min, 20 µl š 20. Anhydrous sodium phosphate, Monobasic anhydrous, sodium phosphate, š Lal water w. x w A w» w e, ye (SP) m k œ 4 o C 20 ¾, 7 ¾ w Éü x ww. š ye (Q) m k œ 4 o C 21 ¾, 8 ¾ w Éü x ww. xw HPLC,, SDS Page, m 4 x w w x ww. )1-$ x x x 214 nm, 280 nm HPLC Chromatogram y w x., Chromatogram peak peakƒ % w w y wš w. š x», ye m k 4 o C xw» š w, 1, 2, 3, 6, 7, 10, 15 š 20 ƒƒ þ Éü x wwš», 1, 2, 3, 6, 7 x ww. š ye m k 4 o C», 1, 2, 3, 7, 8, 11, 15 š 21» x ww», 1, 2, 3, 7, 8 x ww. x š w A œ 1 mg/ml ( )z Blank ( )w HPLC ( : 50 µl)w 241 nm, 280 nm dual mode w. x x UV GE, GeneQuant d q 280 nm.» 5.0 mg/ml, ye»» 4 o C 20~21, 7~8 y r. w w x (USP) UV w. x 1 mg/ml ( ) z UV q 280 nm Ÿ w, 3 d w š ƒ %CV, 5% ü y w. 4%4 1"(& x x x major ƒ Á Analytical Science & Technology
5 Study on stability test of in process sample of recombinant Protein A 487 r x ye z 4 C o», 6, 10 š 20 x w w,», 3, 7 x ww. š ye z 4 C o», 3, 11, š 21,», 3 š 8 ƒƒ x ww. x» e 130V q wš Maker 15 µl gel loading z 15 µl gel loading w. Loading 50 z y w. m x x m» ye z 5.0 EU/mg w, yf z 0.5 EU/mg w. ye z 4 C o», 6, 10 š 20 x ww,», 3, 7 x ww. š ye z 4 C o», 3, 11, š 21,», 3 š 8 ƒƒ x ww. x Gel clot LONZA, Limulus Amebocyte Lysate PYROGENT Plus Single Test Kit w. x UV (mg/ml) z w Serial dilution wš 250 µl m kit w z Incubation (37 o C, 60 min) k y w. m z þ (4 o C) w y wš w. xw SDS PAGE, m, š HPLC, HPLC x 214 nm, 280 nm x ww, x»» 20 x w w. x SDS PAGE» major 20 major ùkû, m» 5.0 Eu/mg w Eu/mg w. š» 8.28 mg/ml mg/ml s³ 8.21 mg/ml, RSD% 0.1% ùkü yw ùkü. w HPLC» x 214 nm 99.12%, % 98.86~99.65% RSD% 0.29%, 280 nm» 90.58% % s³ 89.72%, RSD% 0.62% ùkü x yù w p x ye œ 41 P $ x rprotein A w» w ye Fig. 2. Result of SP sample at 4 o C storage. Table 3. Raw data of SP sample at 4 o C storage <D : Day, : Not Test> Items Time SDS PAGE <Criteria: > Endotoxin <Criteria: 5.0 EU/mg> Concentration <Criteria: 5.0 mg/ml> HPLC Purity 214 nm <Criteria: 90%> 280 nm <Criteria: 70%> Initial 1D 2D 3D 6D 7D 10D 15D 20D Vol. 25, No. 6, 2012
6 488 Yoo Gon Kim, Woo Jong Lee, Chan Hee Won and Chul Soo Shin.» x ye m z 4 o C 20 yù yw p w. Fig. 2 SP 4 o C w x š. š Table 3 x Raw data š. ye œ x ye m z w y wš w. x w SDS PAGE, m, š HPLC, HPLC x 214 nm, 280 nm x ww, x»» 7 x ww. x SDS PAGE» major 7 major ùkû, m» 5.0 Eu/mg w Eu/mg w. š» 8.28 mg/ml mg/ml s³ 8.24 mg/ml, RSD% 0.11% ùkü yw ùkü. w HPLC» x 214 nm 99.12%, % 99.12~99.71% s³ 99.37%, RSD% 0.22%, 280 nm» 90.58% % s³ 89.80%, RSD% 1.26% ùkü x yù w p.» x ye m z Fig. 3. Result of SP sample at room temperature storage. 7 yù yw p w. Fig. 3 SP 4 o C w x š. š Table 4 x Raw data š š. e œ 2 P $ x ye m z þ (4 o C) w y wš w. xw SDS PAGE, m, š HPLC, HPLC x 214 nm, 280 nm x ww, x»» 21 x ww. x SDS PAGE» major 21 major ùkû, m» 0.5 Eu/mg w Eu/mg w. š» 5.62 mg/ml mg/ml s³ 5.59 Table 4. Raw data of SP sample at room temperature storage <D : Day, : Not Test> Time Items Initial 1D 2D 3D 6D 7D SDS PAGE <Criteria: > Endotoxin <Criteria: 5.0 EU/mg> Concentration <Criteria: 5.0 mg/ml> HPLC Purity 214 nm <Criteria: 90%> 280 nm <Criteria: 70%> Analytical Science & Technology
7 Study on stability test of in process sample of recombinant Protein A 489 Fig. 4. Result of Q sample at 4 o C storage. mg/ml, RSD% 0.10% ùk ü yw ùkü. w HPLC» x 214 nm 99.55%, % 99.55~99.80% RSD% 0.10%, 280 nm» 95.84% % s³ 96.16%, RSD% 1.13% ùkü x yù w p.» x ye m z 21 yù yw p w. Fig. 4 Q 4 o C w x š. š Table 5 x Raw data š š. e œ 2 x ye m z Fig. 5. Result of Q sample at room temperature storage. w y wš w. x w SDS PAGE, m, š HPLC, HPLC x 214 nm, 280 nm x ww, x»» 8 x ww. x SDS PAGE» major 8 major ùkû, m» 0.5 Eu/mg w Eu/mg w. š» 5.62 mg/ ml mg/ml s³ 5.59 mg/ ml, RSD% 0.03% ùkü yw ùkü. w HPLC» x 214 nm 99.55%, % 95.55~99.84% RSD% 0.11%, 280 nm» 95.84% % s³ 95.91%, RSD% 0.72% ùkü x yù w p. Table 5. Raw data of Q sample at 4 o C storage <D : Day, : Not Test> Items Time SDS PAGE <Criteria: > Endotoxin <Criteria: 0.5 EU/mg> Concentration <Criteria: 5.0 mg/ml> HPLC Purity 214 nm <Criteria: 90%> 280 nm <Criteria: 70%> Initial 1D 2D 3D 7D 8D 11D 15D 21D Vol. 25, No. 6, 2012
8 490 Yoo Gon Kim, Woo Jong Lee, Chan Hee Won and Chul Soo Shin Table 6. Raw data of Q sample at room temperature storage Time HPLC Purity SDS PAGE <Criteria: > Endotoxin <Criteria: 0.5 EU/mg> Concentration <Criteria: 5.0 mg/ml> 214 nm <Criteria: 90%> 280 nm <Criteria: 70%> Items <D : Day, : Not Test> Initial 1D 2D 3D 7D 8D » x ye m z 8 yù yw p w. Fig. 5 Q 4 o C w x š. š Table 6 x Raw data š. rprotein A w» w œ q w» w x ye ye z þ (4 o C) š» þ 20~21, 7~8 w, xw SDS PAGE, m, HPLC,. ƒ œ x mw» y t s ƒ w x ye m z þ (4 o C) SDS PAGE major, m 5.0 Eu/mg w, s³ 8.21 mg/ml, RSD% 0.10% ùk ü. š HPLC» x 214 nm 99.12%, % 98.86~99.65% RSD% 0.29%, 280 nm» 90.58% % s³ 89.72%, RSD% 0.62% ùkü. ye m z x x SDS PAGE major, m 5.0 Eu/mg w, s³ 8.24 mg/ml, RSD% 0.11% ùkü š HPLC 214 nm 99.12~99.71% s³ 99.37%, RSD% 0.22%, 280 nm s³ 89.80%, RSD% 1.26% ùkü. e m z þ (4 o C) z SDS PAGE major, m 0.5 Eu/mg w,» 5.62 mg/ml mg/ml s³ 5.59 mg/ml, RSD% 0.10% š HPLC» x 214 nm 99.55%, % 99.55~99.80% RSD% 0.10%, 280 nm» 95.84% % s³ 96.16%, RSD% 1.13%. e m z x SDS PAGE major, m 0.5 Eu/mg w,» 5.62 mg/ml mg/ml s³ 5.59 mg/ml, RSD% 0.03% š HPLC» x 214 nm 95.55~ 99.84% RSD% 0.11%, 280 nm» 95.84% % s³ 95.91%, RSD% 0.72% ùkü.» x rprotein A œ (SP) þ (4 o C) 20, 7 w, w œ (Q) þ (4 o C) 21, 8 w.» w p š, y. š x 1. S. Aldington and J. Bonnerjea, Scale-up of monoclonal antibody purification processes. J. Chrom B, 848, (2007). Analytical Science & Technology
9 Study on stability test of in process sample of recombinant Protein A Guideline on Stability Testing of Biological Product - KFDA(2008). 3. ICH guideline Q5C - Quality of Biotechnological Products: Stability Testing of Biotechnological/Biological Products. 4. ICH guideline Q1A(R2) - Stability Testing of New Drug Substance and Products. 5. ICH guideline Q1E - Evaluation for Stability Data. 6. G. Strohlein, L. Aumann, T. Muller-Spath and M. Morbidelli, The multicolumn counter current solvent gradient purification process., BioPharm Int., (2007). 7. D. Agalloco, Control, et al., Process simulation testing for steril bulk pharmaceutical chemicals, PDA Technical Report No. 28, PDA J. Pharm. Sci. Technol., 52, Supplement S3 (1998). 8. S. R. Gallant, S. Vunnum and S. M. Cramer, Optimization of preparative ion-exchagen chromatography of proteins: linear gradient separations, J. Chromato A, 725, (1996). 9. S. Liu, R. Tobias and G. Jackowski, Removal of Endotoxin from Recombinant Protein Preparations, Clinical Biochem., 30(6), (1997). Vol. 25, No. 6, 2012
< DC1A4C3A5B5BFC7E22E666D>
¼ (Jeong, Jung Chae)*, ý (Kim, Yoon Soo), (Shin, Woo Young), Þ Ñ (Park, Jong Man) ò ý ƒ Ð (Korea Evaluation Institute of Industrial Technology) (Shin, Jae-Heyg) Š æ (Ministry of Knowledge Economy) 1. :
More information82-01.fm
w y wz 8«( 2y) 57~61, 2005 J. of the Korean Society for Environmental Analysis p w w Á Á w w» y l Analysis of Influence Factors and Corrosion Characteristics of Water-pipe in Potable Water System Jae Seong
More information12.077~081(A12_이종국).fm
J. of Advanced Engineering and Technology Vol. 1, No. 1 (2008) pp. 77-81 y w» e wx Á w œw Fabrication of Ceramic Batch Composition for Porcelain by Using Recycled Waste Ceramic Powder Hyun Guen Han, and
More information10(3)-09.fm
w y wz 10«3y 253~258 (2010.12.) Journal of Korean Society of Urban Environment ³ w Á» Á Á y w y œw (2010 11 22, 2010 12 9 k) Study on Determine of Detention Pond in Small Developed Area In-Soo Chang ½
More information10(3)-10.fm
w y wz 10«3y 259~264 (2010.12.) Journal of Korean Society of Urban Environment w gj p p y Á Á½k * w m œw Á* w y œw (2010 9 28, 2010 10 12 k) Characteristics of Antiwashout Underwater Concrete for Reduction
More information10(3)-12.fm
w y wz 10«3y 273~280 (2010.12.) Journal of Korean Society of Urban Environment p yá xá½k w y œw (2010 9 15, 2010 12 2 k) Analysis of Characteristics of Delivered Nonpoint Source Pollution at Forested Watershed
More information16(1)-3(국문)(p.40-45).fm
w wz 16«1y Kor. J. Clin. Pharm., Vol. 16, No. 1. 2006 x w$btf3fqpsu'psn û w m w Department of Statistics, Chonnam National University Eunsik Park College of Natural Sciences, Chonnam National University
More information605.fm
Journal of the Korean Housing Association Vol. 19, No. 6, 2008 y k y p w sƒ Care-giver s Needs and Evaluation on the Actual Condition of the Playgrounds in Child Care Facilities y* Choi, Mock-Wha x **
More information14.531~539(08-037).fm
G Journal of the Korea Concrete Institute Vol. 20, No. 4, pp. 531~539, August, 2008 š x y w m š gj p { sƒ z 1) * 1) w w Evaluation of Flexural Strength for Normal and High Strength Concrete with Hooked
More information304.fm
Journal of the Korean Housing Association Vol. 20, No. 3, 2009 yw s w - û - A Study on the Planning of Improved-Hanok - Focused on Jeon-Nam Province - y* ** z*** **** Kang, Man-Ho Lee, Woo-Won Jeong, Hun
More information10(1)-08.fm
w y wz 10«( 1y) 47~52, 2007 J. of the Korean Society for Environmental Analysis œ w t y ½ xá Á x Á½ Á x* Ÿ œ, * w œw Optimization of Coagulation In The Conventional Water Treatment Plant Jun-Hyun Kim,
More information12(2)-04.fm
J. Korean. Soc. Living. Environ. Sys. Vol. 12, No. 2, pp 106~111(2005) w y y w z œ k üœ» p ½ Á Á Á ³ Á Á½Ÿ w w w, *g», ** w w Effects of Strategies to Improve Indoor Air Quality at Pre-occupancy Stage
More informationDBPIA-NURIMEDIA
Printed in the Republic of Korea "/"-:5*$"- 4$*&/$& 5&$)/0-0(: Vol. 18, No. 5, 425-430, 2005» 677*4 Ÿ w sƒ ½»x Á Á½ k w y w, w y œw Some considerations for the analytical approaches to measure atmospheric
More information50(1)-09.fm
2006, Vol. 50, No. 1 Printed in the Republic of Korea 언빨래가마르는현상에대한중등학교화학전공교사들의인식조사 ½x Á» Á½ # Á x* w w yw y š w w # w w (2005. 5. 11 ) A Research of Secondary School Chemistry Major Teachers Perceptions
More information82.fm
Journal of the Korean Ceramic Society Vol. 44, No. 9, pp. 524~528, 2007. Determination of Critical Chloride Content of Ordinary Portland Cement Concrete by Linear Polarization Technique Hong-Sam Kim, Hai-Moon
More information16(2)-7(p ).fm
w wz 16«2y Kor. J. Clin. Pharm., Vol. 16, No. 2. 2006 ü t xy y w tœ ½ BÁ x BC B y w w w C y w w w Current Status and Expectations of Orphan Drugs in Korea -In point of supplying medicines for the rare
More information10(3)-02.fm
w y wz 10«3y 203~211 (2010.12.) Journal of Korean Society of Urban Environment w ù p yá k«áyw *Á xá½k w y œw Á* y w (2010 9 15, 2010 12 2 k) Characterization of Nonpoint Source Pollutant Loads from the
More information14.fm
Journal of the Korean Ceramic Society Vol. 44, No. 2, pp. 93~97, 2007. Preparation of High Purity Si Powder by SHS Chang Yun Shin, Hyun Hong Min, Ki Seok Yun, and Chang Whan Won Engineering Research Center
More informationuntitled
[ ] œwz, 21«6y(2008) J. of the Korean Society for Heat Treatment, Vol. 21, No. 6, (2008) pp. 300~306 š y w p x*, **Á **Áy y* * ** w œ w œw, w» gœ Solid State Diffusion Brazing of the Aluminum Alloy Castings
More information07.045~051(D04_신상욱).fm
J. of Advanced Engineering and Technology Vol. 1, No. 1 (2008) pp. 45-51 f m s p» w Á xá zá Ÿ Á w m œw Image Retrieval Based on Gray Scale Histogram Refinement and Horizontal Edge Features Sang-Uk Shin,
More information49(6)-06.fm
Journal of the Korean Chemical Society 2005, Vol. 49, No. 6 Printed in the Republic of Korea 중학교과학교과서불꽃반응실험에서선스펙트럼관찰의문제점분석및개선연구 ½ Á Á * w w yw (2005. 10. 4 ) An Analysis and Improvement of the Line Spectrum
More information한약재품질표준화연구사업단 단삼 ( 丹參 ) Salviae Miltiorrhizae Radix 생약연구과
한약재품질표준화연구사업단 단삼 ( 丹參 ) Salviae Miltiorrhizae Radix 생약연구과 - 1 - KP 11 CP 2015 Salvia miltiorrhizae Radix Salviae Miltiorrhizae Radix et Rhizoma Salvia miltiorrhiza Bunge Salvia miltiorrhiza Bunge salvianolic
More information12(3) 10.fm
KIGAS Vol. 12, No. 3, September, 2008 (Journal of the Korean Institute of Gas) ü LP ƒ š Database w š Á Á½z w ywœw (2008 6 10, 2008 8 12 (1 ), 2008 9 5 (2 ), 2008 9 5 k) Constructing a Database Structure
More information19(1) 02.fm
Korean J. Crystallography Vol. 19, No. 1, pp.7~13, 2008 Ÿ (ICISS) w š t w (2): t w y w œw Surface Structure Analysis of Solids by Impact Collision Ion Scattering Spectroscopy (2): Atomic Structure of Semiconductor
More information50(5)-07.fm
Printed in the Republic of Korea w 3w yû x w w w Á x* w w w yw (2006. 3. 14 ) A research of the Difference in Teaching Styles and Understanding of 9 th Grade Students About Lead-iodide Precipitation Reaction
More information51(2)-06.fm
Journal of the Korean Chemical Society 2007, Vol. 51, No. 2 Printed in the Republic of Korea f p ƒ š w er elk yw ½ Á y*» l, w w ywœw (2006. 12. 5 ) Separation of Caffeine and Catechin Compounds from Green
More information한약재품질표준화연구사업단 금은화 ( 金銀花 ) Lonicerae Flos 생약연구과
한약재품질표준화연구사업단 금은화 ( 金銀花 ) Lonicerae Flos 생약연구과 - 2 - KP 11 Lonicerae Flos Lonicera japonica Thunberg - CP 2015 JP 16 Lonicerae Japonicae Flos Lonicerae Folium Cum Caulis Lonicera japonica Thunberg - Lonicera
More informationw w l v e p ƒ ü x mw sƒw. ü w v e p p ƒ w ƒ w š (½kz, 2005; ½xy, 2007). ù w l w gv ¾ y w ww.» w v e p p ƒ(½kz, 2008a; ½kz, 2008b) gv w x w x, w mw gv
ª Œª Œ 30ƒ 5A Á 2010 9œ pp. 475 ~ 484 gj p ª v e p p PSC ƒ gv : II. x w Precast Concrete Copings for Precast Segmental PSC Bridge Columns : II. Experiments and Analyses ½kzÁ½ Á zá x Kim, Tae-HoonÁKim,
More informationfm
[ ] w wz DOI: 10.3740/MRSK.2009.19.12.692 Kor. J. Mater. Res. Vol. 19, No. 12 (2009) y INCONEL 718w Gas Tungsten Arc Welding» p sƒ ½»y Á *Á *Á y** ( ) d lj p wœq, *w wœ» q **( ) d lj p t Mechanical Properties
More information15.101~109(174-하천방재).fm
w wz 8«4y 2008 8 pp. 101 ~ 109 w» m -,, - A Study on Warnning Criteria Investigation of Automated Rainfall Warning System -Focused on Realationship of Water Level, Discharge and Precipitation - Á Á Á Ahn,
More information<30332DB9E8B0E6BCAE2E666D>
kœw» y w k p y w k» z wš ye z w mdkqvqrg üœ» y» Ÿ w kœwgeqgpikpggtkpiy glj GEQVGEJPQNQI[ œw w k w yz š y j œ w m w y ˆ mw y» kœ w k û ³ y ƒ ƒ» ƒ w œw w w y ƒƒ» k z w» %NGCP 9CVGT #EV wšw y ù» œ w w w t
More informationDBPIA-NURIMEDIA
Printed in the Republic of Korea "/"-:5*$"- 4$*&/$& 5&$)/0-0(: Vol. 18, No. 5, 436-443, 2005,1"$ w Q) t p z Á 1w w œw 2 w œ yw Effects of surface properties and solution ph on the pollutants removal of
More information9(3)-4(p ).fm
w wz J. Kor. Soc. Cloth. Ind. 9«3y, 2007 Vol. 9, No. 3, pp.319-326(2007) w xk x p w q w Analysis of Foot Characteristics According to the Classification of Foot Types of Junior High School Girls Ji-Young
More information11(5)-12(09-10)p fm
w wz J. Kor. Soc. Cloth. Ind. 11«5y, 2009 Vol. 11, No. 5, pp.799-807(2009) w w * k ƒm w pg p w, ƒm w q w A Qualitative Research on Pursuing Image and Appearance Management Behavior of Brides Eun-Joo Bae
More information한약재품질표준화연구사업단 작약 ( 芍藥 ) Paeoniae Radix 생약연구과
한약재품질표준화연구사업단 작약 ( 芍藥 ) Paeoniae Radix 생약연구과 - 2 - KP 11 CP 2015 JP 16 Paeoniae Radix Paeoniae Radix Alba Paeoniae Radix Rubra Paeoniae Radix Paeonia lactiflora Pallas paeoniflorin, albiflorin 2.3% Paeonia
More information93.fm
Journal of the Korean Ceramic Society Vol. 45, No. 10, pp. 625~630, 2008. Effect of Storage Conditions on the Setting Properties of Brushite Bone Cement Containing Granular β-tricalcium Phosphate Sun-Ae
More information83-07.fm
w y wz 8«( 3y) 137~142, 2005 J. of the Korean Society for Environmental Analysis sw n w Polychlorinated Biphenyls»y Áwx Á yá w w yw Analysis of Polychlorinated Biphenyls from Pohang and Gangseo, Busan
More information16(5)-06(58).fm
Journal of Korean Powder Metallurgy Institute DOI: 10.4150/KPMI.2009.16.5.336 y-y w Sm-Fe w ƒ w zá *Á w»» The Effect of Excess Samarium Oxide on the PreparationG of Sm-Fe Alloy Powder by Reduction-diffusion
More information한약재품질표준화연구사업단 고삼 ( 苦參 ) Sophorae Radix 생약연구과
한약재품질표준화연구사업단 고삼 ( 苦參 ) Sophorae Radix 생약연구과 - 1 - KP 11 Sophorae Radix Sophora flavescens Solander ex Aiton oxymatrine, matrine 1.0% CP 2015 Sophorae Flavescentis Radix Sophora flavescens Aiton - JP 16
More information17.393~400(11-033).fm
Journal of the Korea Concrete Institute Vol. 23, No. 3, pp. 393~400, June, 2011 GGGGG DOI 10.4334/JKCI.2011.23.3.393 x RC { sƒ y y 1) *Á½ 1) Á 2) 1) y w œw 2) w œw Bond Strength Evaluation of RC Beams
More information69-1(p.1-27).fm
99 A 380 B 787 : wœ z w * w w wœ» A380 B787 wœ» w. wœ» ww r. w wœ» p j y w r» w. I. II. z III. A380 B787 IV. A380 V. wœ» : x VI. z VII. I. A380 B787»ƒ z wœ w, w w p j w w ƒ r. t wœ w ƒ w w wœ» š œm wš,
More information82-02.fm
w y wz 8«( 2y) 00~00, 2005 J. of the Korean Society for Environmental Analysis Calix[6]arene w k š w *Á x Á Á«ƒm w yw, *w w yw Cesium Ion Selective Solid Contact Electrodes Based on Calix[6]arene Won-sik
More informationuntitled
ª Œª Œ 27ƒ 2B Á 2007 3œ pp. 193 ~ 199 ª ƒ w d w ƒ sƒ Methodology of Drought Assessment Using National Groundwater Monitoring Network Data «x Á½ Kwon, Hyung JoongÁKim, Seong Joon Abstract The objective
More information10.063~070(B04_윤성식).fm
J. of Advanced Engineering and Technology Vol. 1, No. 1 (2008) pp. 63-70 Mg-3%Al-1%Zn w ƒœ» y Á x*á **Á Á w œw *w s l I ûer ** t Effect of Thermomechanical Treatment on Microstructure and Mechanical Properties
More information84-01.fm
w y wz 8«( 4y) 00~00, 2005 J. of the Korean Society for Environmental Analysis HPLC f y e t p»wá½»x w y w»y Detection Characteristics of a HPLC Method on Carbonyl-DNPH Derivatives in Relation with Column
More information14(4) 09.fm
J. Korean. Soc. Living. Environ. Sys. Vol. 14, No. 4, pp 343~350(2007) w y y w z 14 «4 y 2007 yw» l s p»xá ³ *w w w œw, **w w w The Property of Pressure Distribution of Hybrid Underfloor Air Distribution
More information07.051~058(345).fm
w wz 8«3y 2008 6 pp. 51 ~ 58 m qp yp š w k sƒ Evaluation of Dynamic Modulus based on Aged Asphalt Binder y*á **Á***Á**** Lee, Kwan-HoÁCho, Kyung-RaeÁLee, Byung-SikÁSong, Yong-Seon Abstract Development
More information31(3B)-07(7055).fm
ª Œª Œ 31ƒ 3B Á 2011 5œ pp. 265 ~ 276 ª w w s³ The Correlation Between the Moving Average of Precipitation and Groundwater Level in Korea Á½û» Yang, Jeong-SeokÁKim, Nam-Ki Abstract Precipitation data and
More information16(5)-04(61).fm
Journal of Korean Powder Metallurgy Institute DOI: 10.4150/KPMI.2009.16.5.326 ƒ w Fe œ w Cu wy SPS (II) II. w SPS p ½ *Á½ Á½{ a Á½ š b w œw, a w» gœ, b y œ Production of Fe Amorphous Powders by Gas-Atomization
More information16(4)-05.fm
w m y Vol. 16(4), p. 53~61, 2011 œ 광물찌꺼기에함유된오염물질의안정화를위한표면차폐재의성능평가 ½ ³ 1 Á 1 *Á½ 2 Á½ 2 Á 3 Á 3 1 w œ w œw, 2 ( ) f lp, 3 w Ÿw œ Ÿw» Evaluation of Surface Water-preventing Materials on Stabilization of
More information04_이근원_21~27.hwp
1) KIGAS Vol. 16, No. 5, pp 21~27, 2012 (Journal of the Korean Institute of Gas) http://dx.doi.org/10.7842/kigas.2012.16.5.21 실험실의 사례 분석에 관한 연구 이근원 이정석 한국산업안전보건공단 산업안전보건연구원 (2012년 9월 5일 투고, 2012년 10월 19일
More information항체 포털 서비스 Preparation Peptide 총 4주 소요 / 473,000 ~ 511,000 Free of charge 2~3 days 243,000 ~ 281,000 의뢰서 작성 Peptide epitope prediction 유전자 정보
Preparation Service AbFrontier Custom service 장점 실험 담당자와의 원활한 1:1 커뮤니케이션 (신속한 feedback을 통한 맞춤형 제작 서비스) 고객연구센터 - 개별 서비스의 진행 상황 및 결과 즉시 확인 http://center.abfrontier.com (e-mail & SMS 전송) 회원제 -연구자의 프로젝트 보안
More information12(4) 10.fm
KIGAS Vol. 12, No. 4, December, 2008 (Journal of the Korean Institute of Gas) l x CNG» v m s w ½ Á y w» œw (2008 9 30, 2008 12 10, 2008 12 10 k) Numerical Analysis for Temperature Distribution and Thermal
More information16(5)-03(56).fm
Journal of Korean Powder Metallurgy Institute DOI: 10.4150/KPMI.2009.16.5.316 ƒ w Fe œ w Cu wy SPS (I) I. ƒ wy y Á xá½ Á½ *Á½{ a w œw, a w» gœ Production of Fe Amorphous Powders by Gas-atomization Process
More information20(2)-07[25].fm
J. Kor. Powd. Met. Inst., Vol. 20, No. 2, 2013 DOI: 10.4150/KPMI.2013.20.2.129 SMPS l ( )ƒ ù d e w y Á w t w» t l The Effect of Water Droplets on the Nano Particle Size Distribution using the SMPS System
More information18211.fm
J. of the Korean Sensors Society Vol. 18, No. 2 (2009) pp. 168 172 p k ù p p l xá xá ³ Á *Á w * Fabrication of the CNT-FET biosensors with a double-gate structure Byunghyun Cho, Byounghyun Lim, Jang-Kyoo
More information........
Investigation of the Korean Traditional Hobun Manufacturing Technique NATIONAL RESEARCH INSTITUTE OF CULTURAL HERITAGE 2008 Investigation of the Korean Traditional Hobun Manufacturing Technique - Centering
More information38(6)-01.fm
y, 38«, 6y, 699-705, 2005 Econ. Environ. Geol., 38(6), 699-705, 2005 t sÿ y xk 1 Á s 2Á z 1 Á½ 1 Á e 3 1 w y w,» w, 2w y w, 3š w y w Chemical Speciation of Heavy Metals in Geologic Environments on the
More information416.fm
Journal of the Korean Housing Association Vol. 20, No. 4, 2009 œ qp œ y An Analysis of Change on the Apartment Unit Plans and the Interior Spaces Related to Women * Choi, ByungSook ** Park, JungA "CTUSBDU
More informationValidation Plan Template
문서번호(Document No.) : 개정번호(Revision No.) : 00 시행일자(Effective Date) : 페이지번호(Page No.) : 1 of 9 작성자 (Prepared By) 부서 (Dept.) 직위 (Position) 이름 (Name) 서명 / 날짜 (Signature / Date) 검토자 (Reviewed By) 부서 (Dept.)
More information한약재품질표준화연구사업단 강활 ( 羌活 ) Osterici seu Notopterygii Radix et Rhizoma 생약연구과
한약재품질표준화연구사업단 강활 ( 羌活 ) Osterici seu Notopterygii Radix et Rhizoma 생약연구과 - 2 - - 3 - KP 11 Osterici seu Notopterygii Radix et Rhizoma Ostericum koreanum Maximowicz, Notopterygium incisum Ting, Notopterygium
More information26(1)-11(김기준).fm
Printed in the Republic of Korea "/"-:5*$"- 4$*&/$& 5&$)/0-0(: Vol. 26, No. 1, 80-85, 2013 http://dx.doi.org/10.5806/ast.2013.26.1.080 Study on the analytical method using GC-MS for the accident preparedness
More information<30312DC0CCC7E2B9FC2E666D>
균류의다양성과역할 이향범 û w œw 머리말 k w š ³ q š yw < Ð >» w ww k w w v š q w Á Á w tyw š 2QKPVKPI CPF *[FG ú ƒ x %QPXGPVKQP QP $KQNQIKECN &KXGTUKV[ %$&» w w ««wš y w» š x ƒ w œ ƒ» ƒ œsw w ³ wš ù š y š ƒ t š ƒ wš»ƒ
More informationAbstract Musculoskeletal Symptoms and Related Factors for Nurses and Radiological Technologists Wearing a Lead Apron for Radiation Pro t e c t i o n Jung-Im Yoo, Jung-Wan Koo 1 ) Angio Unit, Team of Radiology,
More information14(2) 02.fm
J. Korean. Soc. Living. Environ. Sys. Vol. 14, No. 2, pp 117~125(2007) w y y w z sm Ÿ š w œ l ³Á½ * w, **w w w Impact of Photosensor Sensitivity on the Control Performance of a Daylight Dimming System
More information<30312D303720B9DAC1A4BCF62E666D>
wz (010), 40«1y J. Kor. Pharm. Sci., Vol. 40, No. 1, 1-7 (010) 생물학적동등성시험을위한통계처리프로그램 (BioEquiv) 의개발 z 1 Áyù Á 3 Á 4 Á 1 1 û w m w, w wx, 3 û w w w, 4 û w w w (009 11 0 Á09 1 11 Á010 1 6 ) Developmet of
More information11(1)-15.fm
w y wz 11«1y 73~80 (2011.8.) Journal of Korean Society of Urban Environment SWMM 을이용한도시지역비점오염부하저류시설용량산정 Áw«Á *Áy **Á½ yá½ Á x w w Á* û w y œw Á** w y lœw (2011 6 13, 2011 6 27 k) Determine Capacity of
More information( )-123.fm
Journal of the Korean Ceramic Society Vol. 48, No. 1, pp. 63~68, 2011. DOI:10.4191/KCERS.2011.48.1.063 Effects of Substituting B 2 O 3 for P 2 O 5 on the Structure and Properties of SnO-P 2 O 5 Glass Systems
More information93-09.fm
w y wz 9«( 3y) 199~206, 2006 J. of the Korean Society for Environmental Analysis sƒ(i) ½» *Áx Á * w yw w, w y œw Evaluation of Manual and Automated Methods in Total Nitrogen (TN) and Total Phosphorus (TP)
More information- 2 -
한약재품질표준화연구사업단 인동 ( 忍冬 ) Lonicerae Folium et Caulis 생약연구과 - 2 - KP 11 Lonicera japonica Thunberg 0.1% CP 2015 JP 16 Lonicera japonica Thunberg chlorogenic acid 0.10% Lonicera japonica Thunberg - β α - 3
More informationDBPIA-NURIMEDIA
The e-business Studies Volume 17, Number 4, August, 30, 2016:319~332 Received: 2016/07/28, Accepted: 2016/08/28 Revised: 2016/08/27, Published: 2016/08/30 [ABSTRACT] This paper examined what determina
More information41(6)-09(김창일).fm
269 Ar v Na 0.5 K 0.5 NbO 3 t ½ t,, ½ w,, ½ w»œw Surface Reaction of Na 0.5 K 0.5 NbO 3 Thin Films in Inductively Coupled Ar Plasma w t œwz J. Kor. Inst. Surf. Eng. Vol. 41, No. 6, 2008. < > Dong-Pyo Kim,
More information01.01~08(유왕진).fm
JOURNAL OF KOREA SOCIETY OF PACKAGING SCIENCE & TECHNOLOGY. Vol. 14, No. 1 1~8 (2008) s w Á w» w Comparative Study on the Changes and Prospects of Flexible Food Packaging Design Kyung Soo Noh and Wang
More information한약재품질표준화연구사업단 맥문동 ( 麥門冬 ) Liriopis Tuber 생약연구과
한약재품질표준화연구사업단 맥문동 ( 麥門冬 ) Liriopis Tuber 생약연구과 Fig.1 ( ) ( ) Table 1. The origin of the Liriopis Tuber in KP, ChP and JP β α β α βα αβ α aster saponin Hb methyl ester H H H H H H H liriope glycoside Lm-3
More information( )-83.fm
Journal of the Korean Ceramic Society Vol. 8, No. 1, pp. 0~5, 011. DOI:10.191/KCERS.011.8.1.00 Solidification of Heavy Metal Ions Using Magnesia-phosphate Cement HunG Choi, Hyun Ju Kang, Myung Shin Song,
More information23(2) 71.fm
J. of Korean Institute of Fire Sci. & Eng. [ ] Vol. 23, No. 2, 2009 w w w w w w Stud on the Fire Behaviour of Composite Beam with Loading and Unloading ½ *Á û**á½ ***Á½ Sung-Bae Kim* Chang-Nam Lee** Woo-Chul
More information51(2)-09.fm
2007, Vol. 51, No. 2 Printed in the Republic of Korea xw yw w w» e w z Á Á y Áw # Á k * w yw w w w w w # w w w (2006. 10. 30 ) Influences of Current Education Programs for Preservice Chemistry Teachers
More informationfm
J. Fd Hyg. Safety 20(4), 253 257 (2005) ü w w w Áy»xÁ Á Á Á«Á Áw Á x Á yx Á½ Á½ Á½ t t» t t ƒ q Study on Management of Artificial Flavors in Korea Tal-Soo Lee, Young-Mi Jang, Ki-Hyoung Hong, Sung-Kwan
More information04.fm
w y wz 9«( 2y) 91~96, 2006 J. f the Krean Sciety fr Envirnmental Analysis üy wƒ w y k p ½» w w œw Adsrptin Prperties f the Activated Carbns fr Remving Harmful Gases in Indr Envirnments In-Ki Kim Department
More information32(4B)-04(7455).fm
32«4ByÁ 2012 7 pp. 233 ~ 242 œ w w w y œ r Estimation of Domestic Water Supply Benefit Using Demand Function Approach ³ Á Á½¼yÁ Yeo, Kyu DongÁYi, Choong SungÁKim, Gil HoÁLee, Sang Won Abstract In the past,
More information-, BSF BSF. - BSF BSF ( ),,. BSF -,,,. - BSF, BSF -, rrna, BSF.
1. 2010 6 1, 2 4 Ⅰ,Ⅱ 2013,, -,. - Human Cell.. -,., Biosand Filter(BSF) - BSF Main Filtering (Biofilm) BSF, BSF ( ),. -, BSF BSF. - BSF BSF ( ),,. BSF -,,,. - BSF,. -. -. -. - 2. BSF -, rrna, BSF. 2. -
More information, ( ) 1) *.. I. (batch). (production planning). (downstream stage) (stockout).... (endangered). (utilization). *
, 40 12 (2006 6) 1) *.. I. (batch). (production planning). (downstream stage) (stockout).... (endangered). (utilization). * 40, 40 12 (EPQ; economic production quantity). (setup cost) (setup time) Bradley
More information-06-......,......
Analysis of the Current Condition of Student Childcare Training in Korea: Student Childcare Training Centers, Guidance Teachers, Student Teachers and Student Childcare Training Fees Department of Childcare
More information09권오설_ok.hwp
(JBE Vol. 19, No. 5, September 2014) (Regular Paper) 19 5, 2014 9 (JBE Vol. 19, No. 5, September 2014) http://dx.doi.org/10.5909/jbe.2014.19.5.656 ISSN 2287-9137 (Online) ISSN 1226-7953 (Print) a) Reduction
More information15(2)-07.fm
J. Korean. Soc. Living. Environ. Sys. Vol. 15, No. 2, pp 145~154(2008) w y y w z 15 «2 y 2008 ³ l w sm ½ Á yáy * w y w, ** w w Recommended Sensitivity of a Fully-shielded Photosensor for a Daylight Dimming
More information00내지1번2번
www.keit.re.kr 2011. 11 Technology Level Evaluation ABSTRACT The Technology Level Evaluation assesses the current level of industrial technological development in Korea and identifies areas that are underdeveloped
More information(163번 이희수).fm
Journal of the Korean Ceramic Society Vol. 48, No. 4, pp. 323~327, 2011. DOI:10.4191/KCERS.2011.48.4.323 Electrical Properties and Temperature Stability of Dysprosium and Erbium Co-doped Barium Titanate
More information04-46(1)-06(조현태).fm
w œwz, 46«1y 2009 Textile Science and Engineering Vol. 46, No. 1, 2009 ù 2'6 wx xk Á «w œ w» Áq œw k 1PG $CVJ1PG 5VGR &[GKPI H 0[NP2'6 5RNKV 6[RG /KETHKDGT *[GP 6CG %J CPF%JWN-YP2CTM &GRCTVOGPV H 1TICPKE
More information(2)-02(최경자).fm
Res. Plant Dis. 16(2) : 148-152 (2010) Research in Plant Disease The Korean Society of Plant Pathology z w t w sƒ Á½ Á Á yá * w yw yw l Development of Effective Screening Method and Evaluation of Radish
More information21(4)-02.fm
J. Fd Hyg. Safety 21(4), 204 212 (2006) ŸŸ w» ƒ, ƒ, w ½ Á Á½ ¼Á½ Á Á½ Ášy Á» y Quantitative Analysis of Acid Value, Iodine Value and Fatty Acids Content in Sesame Oils by NIRS Jae-Kwan Kim, Myung-Jin Lee,
More information06.177~184(10-079).fm
Journal of the Korea Concrete Institute Vol. 23, No. 2, pp. 177~184, April, 2011 GGGGG DOI 10.4334/JKCI.2011.23.2.177 x w w MRS w p s y 1) Á z 2) Á x 3) * 1) wû w œw 2) w œw 3) w Nonlinear Analysis for
More information16(2)-9(p ).fm
w wz 16«2y Kor. J. Clin. Pharm., Vol. 16, No. 2. 2006 ù txƒ š x B Á xk B Á C Á z B B w w w C w Regulatory System of Quasi-drugs in Korea Hyun Soon Sohn a, Hyun Taek Shin a, In Sook Song b, and Hyo Jung
More information08.fm
w y wz 9«( 4y) 261~267, 2006 J. of the Korean Society for Environmental Analysis SDB-RPS j š w 3-Chloro-4- (dichloromethyl)-5-hydroxy-2(5h)-furanone y Á Á l w œ Development of Disk-type Extraction of 3-Chloro-4-(dichloromethyl)-
More information012임수진
Received : 2012. 11. 27 Reviewed : 2012. 12. 10 Accepted : 2012. 12. 12 A Clinical Study on Effect of Electro-acupuncture Treatment for Low Back Pain and Radicular Pain in Patients Diagnosed with Lumbar
More informationfm
w y wz 9«( 1y) 34~40, 2006 J. f the Krean Sciety fr Envirnmental Analysis V/ w y Áy yá váy * w» ( )», *» w y œw Simultaneus Remval f Dixin and Nitrgen Oxide n V/ Catalyst Jun-Yub Lee, Sung-H Hng, Sung-Pill
More information환경중잔류의약물질대사체분석방법확립에 관한연구 (Ⅱ) - 테트라사이클린계항생제 - 환경건강연구부화학물질연구과,,,,,, Ⅱ 2010
11-1480523-000702-01 환경중잔류의약물질대사체분석방법확립에 관한연구 (Ⅱ) - 테트라사이클린계항생제 - 환경건강연구부화학물질연구과,,,,,, Ⅱ 2010 목차 ⅰ ⅱ ⅲ Abstract ⅳ Ⅰ Ⅱ i 목차 Ⅲ Ⅳ i 목차 ii 목차 iii Abstract α β α β iv Ⅰ. 서론 Ⅰ 1 Ⅱ. 연구내용및방법 Ⅱ. 2 Ⅱ. 연구내용및방법
More information50(4)-10.fm
2006, Vol. 50, No. 4 Printed in the Republic of Korea 칼코겐이도핑된망간산화물의저온합성연구 k Á z Á, *Áy, * y w ù w yw x ù l w» ww (2006. 7. 13 ) Chimie Douce Synthesis of Chalcogen-Doped Manganese Oxides Seung Tae Lim,GDae
More informationDBPIA-NURIMEDIA
박건수 *, 서태영 **, 김종욱 *** ". 요약 Abstract The induction melting furnace using electric generator has been introduced since 1920s, and it began to be widely applied to industrial applications due to increasing
More information18(3)-10(33).fm
Journal of Korean Powder Metallurgy Institute Vol 18 No 3 011 DOI: 10150/KPMI01118383 e x 5Mg(OH) MgSO 3H O x w MgO NH OH w a báv y aá½xk aá½ aá½ cá½ bá½ a * aw» l bš w œw ck Effect of MgO and NH OH on
More information7(4)-07.fm
w» wz, 7«4y(2005) Korean Journal of Agricultural and Forest Meteorology, Vol. 7, No. 4, (2005), pp. 282~288 ƒ ù k š w k 1 Á 2 Á 1 Áy y 1 Á 1 Á x 1 Á û 1 1 w û, 2 w (2005 11 15 ; 2005 12 2 ) Aboveground
More information