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강동희(Tong Hee Kang) 한국지역학회 1999 지역연구 Vol.15 No.1
It is widely known that optimal control techniques are useful to measure the performance of macroeconomic policy. This paper examines how the methods could be applicable to the regional policy process, and applies them to the evaluation of the public investment expenditures conducted by the local government of Choongbook Province in Korea. The numerical example illustrates the usefulness of the methods for the evaluation of the regional economic policies suggesting the main findings as follows: (1) If the local government of Choongbook Province had increased the public investment expenditures allowing the budget deficits for the first three to four years during the period between 1985 and 1990, its GRDP would have early rise: i to the ratio of more than three percent of Korea`s total GDP. (2) The additional welfare losses incurred by not following the optimal policy were 0.191 in 1986, 0.607 in 1987, 1.585 in 1988, and 0.132 in 1989, indicating that the public investment policy proves to be the best in 1989 and the worst in 1988.
고들빼기 김치의 有機成分(Ⅰ) - 遊離아미노酸에 關하여 -
강동희(Dong Hee Kang),우영숙(Young Sook Woo),이영경(Young Kyoung Lee),정승용(Seung Yong Chung) 한국식품영양과학회 1983 한국식품영양과학회지 Vol.12 No.3
고들빼기를 멸치젓으로 김치담금하여 熟成中의 遊離아미노酸을 分析定量하여 다음과 같은 結果를 얻었다.<br/> 原料 고들빼기의 잎과 뿌리에서 各各 8種의 遊離아미노酸을 定量하였으며, 뿌리에는 arginine, cystine, glutamic acid, 잎에는 arginine, valine, isoleucine, phenylalanine 등의 含量이 많았고 特히 arginine은 잎 뿌리 모두 그 含量이 越等히 많았다. 總 遊離아미노酸量은 잎이 뿌리의 約 2.5倍였다.<br/> 고들빼기 김치에서는 잎, 뿌리 모두 總 15 種의 遊離아미노酸을 檢出 定量하였으며 잎, 뿌리 모두 threonine, glutamic acid, alanine, leucine, cystine의 含量이 많았다. 總 遊離아미노酸量은 김치 잎이 9435.6㎎%, 뿌리는 7079.1㎎%로서 잎이 約 5 倍 뿌리가 約 11倍로서 原料에 比해 많은 增加를 보였다.<br/> 김치 液汁에서는 總 16種의 遊離아미노酸을 定量하였으며 그 中 threonine, glutamic acid alanine, cystine, leucine 등의 含量이 많았다. The change of free amino acids was identified during fermentation of kimchis (Ixeris sonchifoliaH.) added fermented anchovy.<br/> The results were summarized as follows;<br/> In fresh roots and leaves of Ixeris sonchifolia H.,8 kinds of free amino were determined respectively. Among them, argine, cystine and glutamic acid were abundant in fresh roots. while arginine, valine, isoleucine and phenylalanine in fresh leaves, especially arginine was dominant in fresh both roots and leaves. The amount of total amino acids in fresh leaves was about 2.5 times of that of roots.<br/> After fermentation, 15 kinds of free amino acids were determined in kimchis, and the characteristic favor of it was attributed to such amino acids as threonine, glutamic acid, alanine, leucine and cystine, The content of total free amino acids in kimchi leaves was increased to about 5 times of that in fresh (9,435,6㎎ % on dry base), but in kimchi roots, 11 times of that in fresh was contained (7,079, 1㎎ % on dry base)<br/> In kimchi'es extract, 16 kinds of free amino acids were determined, and threonine, glutamic acid, alanine, cystine and leucine were abundant.
항생제 다제내성균 Pseudomonas aeruginosa에 대한 생육저해물질 생산 방선균의 분리 및 항균활성
강동희(Kang, Dong Hee),배호경(Ho-Kyung Bae),김현수(Hyun-Soo Kim) 한국생물공학회 2011 KSBB Journal Vol.26 No.1
Of the 500 Actinomycetes isolates obtained from soil, one isolate grown on maltose as the sole carbon source produced compound BHK-P19, which inhibited the growth of multiple drug resistant P. aeruginosa 0245. Ultraviolet radiation mutagenesis curtailed production of BHK-P19. Mutation of the BHK-P19 producer using N-methyl-N`- nitro-N-nitroso-guanidine obviated the antibacterial activity to P. aeruginosa 0245, but not towards P. aeruginosa 0225. The mixing of BHK-P19 and BHK-S5 culture extracts inhibited P. aeruginosa 0254, 0225 and 1113. The combined application of BHK-P19 culture extract and Schizandra chinensis Baillon extract inhibited P. aeruginosa 0254, 0225, 0826, 1113, 1378, 1731 and 2492. Use of various concentrations of BHK-P19 culture extract and ampicillin markedly increased antibacterial activity against multi-drug resistant P. aeruginose 1113.
HS-SPME/GC-MS를 이용한 천연물 열수추출물 처리 돼지 막창의 휘발성 및 반휘발성 물질 분석
강동희(Dong-Hee Kang),전현욱(HyunWook Jeon),김현수(Hyun-Soo Kim) 한국생물공학회 2018 KSBB Journal Vol.33 No.2
Changes in volatile and semi-volatile compounds present in pork entrails and extracts-treated pork entrails were determined by gas chromatography mass spectrometry (GCMS) with headspace-solid phase microextraction (HS-SPME). A total of 45 compounds, including 16 aldehydes, 9 alcohols, 2 phenols, 2 ketones, 2 indoles, 1 amine, and 13 miscellaneous substances, were identified in pork entrails. A total of 42 compounds, comprising 15 aldehydes, 10 alcohols, 1 phenol, 2 indoles, 1 amine, and 13 miscellaneous constituents, were identified in extracts-treated pork entrails. Heptadecane, 2,3-octanedione, 4E-8-methyl-4-decene, 3E-3-ethyl-2-methyl-1,3- hexadiene, 2-octenal, 2,4-nonadienal, 2-undecenal, 2-ethoxybenzenaldehyde- 1-180, 2,3-octanedione, 2-pentadecanone, 1- hexanol and acetamide were detected in pork entrails alone. Area values of hexanal, heptanal, E-2-hexenal, 2-pentyl-furan, 1-pentanol, octanal, E-2-heptenal, nonanal, 1-octen-3-ol, 1-heptanol and benzaldehyde were decreased in extract-treated pork entrails rather than untreated pork entrails.