아시아 횡단철도의 경제적 효과 분석 : 중국 동북 3성을 중심으로

구종순,여희정,동무성 한국관세학회 2009 관세학회지 Vol.10 No.1

The paper explores economic effects of the Trans-Asian Railway North Corridor(TAR-NC) in the Northeast regions of China. The 3 Northeast regions, called Dongbeisan Sheng(3 provinces composed of Liaoning Sheng, Helongjiang Sheng, Jilin Sheng) possess natural resources and form a large regional economic block. In the 2000's the Chinese government has led a development policy of land transport via TAR-NC. Volumes transported by rail from origin/destination stations such as Erlianhaote, Suifenhe, Arasankou, Manzhouli are significantly increasing. Furthermore, by the fact that the Russian government plans to reduce railway tariffs and the Chinese government reforms laws related to container transport to increase competitiveness of the TAR-NC as an international railway route, the TAR-NC will offer a better package of services such as transit times, tariffs to attract shippers and compete against well-established shipping lines. Europe is the second export/import trade partner for the 3 Northeast regions. The reduced transit times and tariffs offered by the railway route for land movements of containers will enhance the competitiveness of products of the regions in the European market.

Design tables and charts for uniform and non-uniform tuned liquid column dampers in harmonic pitching motion

Jong-Cheng Wu,Yen-Po Wang,Yi-Hsuan Chen 국제구조공학회 2012 Smart Structures and Systems, An International Jou Vol.9 No.2

In the first part of the paper, the optimal design parameters for tuned liquid column dampers (TLCD) in harmonic pitching motion were investigated. The configurations in design tables include uniform and non-uniform TLCDs with cross-sectional ratios of 0.3, 0.6, 1, 2 and 3 for the design in different situations. A closed-form solution of the structural response was used for performing numerical optimization. The results from optimization indicate that the optimal structural response always occurs when the two resonant peaks along the frequency axis are equal. The optimal frequency tuning ratio, optimal head loss coefficient, the corresponding response and other useful quantities are constructed in design tables as a guideline for practitioners. As the value of the head loss coefficient is only available through experiments, in the second part of the paper, the prediction of head loss coefficients in the form of a design chart are proposed based on a series of large scale tests in pitching base motions, aiming to ease the predicament of lacking the information of head loss for those who wishes to make designs without going through experimentation. A large extent of TLCDs with cross-sectional ratios of 0.3, 0.6, 1, 2 and 3 and orifice blocking ratios ranging from 0%, 20%,40%, 60% to 80% were inspected by means of a closed-form solution under harmonic base motion for identification. For the convenience of practical use, the corresponding empirical formulas for predicting head loss coefficients of TLCDs in relation to the cross-sectional ratio and the orifice blocking ratio were also proposed. For supplemental information to horizontal base motion, the relation of head loss values versus blocking ratios and the corresponding empirical formulas were also presented in the end.

Design tables and charts for uniform and non-uniform tuned liquid column dampers in harmonic pitching motion

Wu, Jong-Cheng,Wang, Yen-Po,Chen, Yi-Hsuan Techno-Press 2012 Smart Structures and Systems, An International Jou Vol.9 No.2

In the first part of the paper, the optimal design parameters for tuned liquid column dampers (TLCD) in harmonic pitching motion were investigated. The configurations in design tables include uniform and non-uniform TLCDs with cross-sectional ratios of 0.3, 0.6, 1, 2 and 3 for the design in different situations. A closed-form solution of the structural response was used for performing numerical optimization. The results from optimization indicate that the optimal structural response always occurs when the two resonant peaks along the frequency axis are equal. The optimal frequency tuning ratio, optimal head loss coefficient, the corresponding response and other useful quantities are constructed in design tables as a guideline for practitioners. As the value of the head loss coefficient is only available through experiments, in the second part of the paper, the prediction of head loss coefficients in the form of a design chart are proposed based on a series of large scale tests in pitching base motions, aiming to ease the predicament of lacking the information of head loss for those who wishes to make designs without going through experimentation. A large extent of TLCDs with cross-sectional ratios of 0.3, 0.6, 1, 2 and 3 and orifice blocking ratios ranging from 0%, 20%, 40%, 60% to 80% were inspected by means of a closed-form solution under harmonic base motion for identification. For the convenience of practical use, the corresponding empirical formulas for predicting head loss coefficients of TLCDs in relation to the cross-sectional ratio and the orifice blocking ratio were also proposed. For supplemental information to horizontal base motion, the relation of head loss values versus blocking ratios and the corresponding empirical formulas were also presented in the end.

New non-quinone geldanamycin analogs from genetically engineered Streptomyces hygroscopicus

Wu, Cheng-Zhu,Moon, An Na,Jang, Jae-Hyuk,Lee, Dongho,Kang, Sun-Young,Park, Joon-Tae,Ahn, Jong Seog,Hwang, Bang Yeon,Kim, Young Ho,Lee, Hong-Sub,Hong, Young-Soo Springer Science and Business Media LLC 2011 The Journal of Antibiotics Vol.64 No.6

New Geldanamycin Analogs from Streptomyces hygroscopicus

( Cheng Zhu Wu ),( Jae Hyuk Jang ),( Jong Seog Ahn ),( Young Soo Hong ) 한국미생물 · 생명공학회 2012 Journal of microbiology and biotechnology Vol.22 No.11

Geldanamycin (GM) and its analogs are important anticancer agents that inhibit heat shock protein (Hsp) 90, which is a major chaperone protein in cancer cells. Accordingly, based on interest in obtaining novel natural GM derivatives, the potential of Streptomyces hygroscopicus JCM4427, a GM producer, was explored for novel natural GM derivative(s), resulting in the discovery of new GM analogs as a biosynthetic shunt product and intermediates from its fermentation broth. In this study, the fermentation, isolation, structure determination, and biological activity of the compounds, two new tetracyclic thiazinogeldanamycin (1) and 19-hydroxy-4,5-dihydrogeldanamycin (3), together with the three known 4,5-dihydrothiazinogeldanamycin (2), reblastatin (4), and 17-demethoxy-reblastatin (5), are described.

폴리페놀, 안토시아닌과 비타민 C 함량이 우수한 감자 계통 선발

김성무(Cheng Wu Jin),최형식(Hyung Sic Choi),이우종(Woo Jong Lee),강위수(Wi Soo Kang),임학태(Hak Tae Lim) 한국원예학회 2016 원예과학기술지 Vol.34 No.4

중국 항만의 경쟁력 결정요인에 관한 연구

구종순(Jong-Soon Koo),황경연(Kyung-Yun Hwang),동무성(Wu-Cheng Dong) 한국무역학회 2010 貿易學會誌 Vol.35 No.5

폴리페놀, 안토시아닌과 비타민 C 함량이 우수한 감자 계통 선발

김성무(Cheng Wu Jin),최형식(Hyung Sic Choi),이우종(Woo Jong Lee),강위수(Wi Soo Kang),임학태(Hak Tae Lim) 한국원예학회 2016 원예과학기술지 Vol.34 No.3

본 연구는 기능성 식품 소재용 감자 계통을 선발하고자, 35개의 계통 및 대조구 품종인 ‘수미’, ‘다솜밸리’ ‘고구밸리’의 총 폴리페놀, 총 안토시아닌, 비타민C의 함량을 분석하였다. 분석결과, 계통별 함량차이가 큰 것으로 나타났으며, 그 가운데서 총 폴리페놀 함량은 KPG16 계통이 105.08㎎·100g<SUP>-1</SUP> FW, 총 안토시아닌 함량은 KPG13 계통이 4.78㎎·100g<SUP>-1</SUP> FW, 비타민 C 함량은 KPG20 계통이 22.16㎎·100g<SUP>-1</SUP> FW으로 각각 높게 나타났다. 종합적으로 분석한 결과, KPG5계통이 총 폴리페놀, 총 안토시아닌, 비타민 C 함량이 각각 103.95, 3.15, 12.12㎎·100g<SUP>-1</SUP> FW 으로 3성분을 고루 함유하고 있음을 확인할 수 있었으며, 추후 기능성 품종 선발의 소재로 활용될 수 있을 것으로 사료된다. To develop appropriate potato clones as functional food materials, we collected 35 potato breeding clones to analyze the contents of the total polyphenol, anthocyanin, and vitamin C with the ‘Superior’, ‘Dasom valley’, and ‘Gogu valley’ cultivars as controls. Based on our analysis great differences were observed in different potato clones. KPG16 had the highest content of total polyphenol at 105.08 ㎎·100g<SUP>-1</SUP> FW; KPG13 had the highest content of anthocyanin at ·4.78 ㎎100g<SUP>-1</SUP> FW; KPG20 had the highest content of vitamin C at 22.16 ㎎·100g<SUP>-1</SUP> FW. Some clones had higher contents of the total polyphenol but lower levels of anthocyanin. Ultimately, potato clones showing relatively high indexes for all three compounds, could be considered as good functional food material. By equilibrium analysis of the contents of total polyphenol, anthocyanin, and vitamin C, KPG5 showed relatively higher contents, with values of 103.95, 3.15, 12.12 ㎎·100g<SUP>-1</SUP> FW, respectively. Therefore, KPG5 was considered to be the best potato breeding clone in view of a functional potato breeding system.

아시아 횡단철도와 동북아 철도 연계성에 관한 연구

구종순(Jong Soon Koo),동무성(Wu Cheng Dong) 한국무역학회 2008 무역학자 전국대회 발표논문집 Vol.2008 No.8

The structure of world's international trade is divided by two parts, one is multilateralism which in succession to GAIT system, the other is regionalism like ED and NAFTA. But in North-eastern region has not taken place any economic unification. At the beginning of 1990, the economic unification is expending, this situation raised the need of North eastern railway integration on new concept. At this background, firstly, this Research analyzed the status and prospect of Asia transcontinental railway. Secondly, reviewed the north east 3 provinces in China, and the possibility of connection between Asia transcontinental railway. Finally, analyzed the effect that connection of Asia transcontinental railway will give north east 3 provinces of China's economy. A country's logistics network should use existing facilities enough and utilize other facilities to produce synergy effect. If only depends on the exterior change or simple development to reinvigorate the whole system, it will be inefficient. Internal logistics facilities should be connected with exterior and optimize the network effect. To reach this aim, analyzing the status of Asia transcontinental railway, this thesis mainly use the literature studying method and analyzing internal research institute statistics and material, put emphasis on analyzing advanced literature, related references, recent seminar and on-time publication.

Biosynthesis of plant-specific phenylpropanoids by construction of an artificial biosynthetic pathway in Escherichia coli.

Choi, Oksik,Wu, Cheng-Zhu,Kang, Sun Young,Ahn, Jong Seog,Uhm, Tai-Boong,Hong, Young-Soo Published by Stockton Press on behalf of the Socie 2011 Journal of industrial microbiology & biotechnology Vol.38 No.10

<P>Biological synthesis of plant secondary metabolites has attracted increasing attention due to their proven or assumed beneficial properties and health-promoting effects. Phenylpropanoids are the precursors to a range of important plant metabolites such as the secondary metabolites belonging to the flavonoid/stilbenoid class of compounds. In this study, engineered Escherichia coli containing artificial phenylpropanoid biosynthetic pathways utilizing tyrosine as the initial precursor were established for production of plant-specific metabolites such as ferulic acid, naringenin, and resveratrol. The construction of the artificial pathway utilized tyrosine ammonia lyase and 4-coumarate 3-hydroxylase from Saccharothrix espanaensis, cinnamate/4-coumarate:coenzyme A ligase from Streptomyces coelicolor, caffeic acid O-methyltransferase and chalcone synthase from Arabidopsis thaliana, and stilbene synthase from Arachis hypogaea.</P>