• Journal of the Economic Geographical Society of Korea
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• v.19 no.2
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• pp.399-416
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• 2016

The main aim of the research attempts to identify value relations appropriated and realized in the coffee frontier of Vietnam by investigating the ways in which it is integrated into coffee global value chains driven by multinational companies, and to provide some implications of the integration of the frontier into sustainable coffee global value chains for creating shared value in Dak Lak, Vietnam. Recently Dak Lak has gone through the transition of value relations from exploitative value chains based upon conventional coffee production into shared value chains relied upon the production of sustainable or certified coffee in Dak Lak. The transition has been expected to result in sustainability in the creation of value by enhancing regional competitive advantages and regional bargaining power in global value chains driven by multinational companies. However, the reality has shown the intensification of hierarchical profits allocation among stakeholders such as farmer, middlemen, and multinational companies in the region. The main reasons for this could be found in two perspectives. Firstly, the formation of exclusive relations among farmers, middlemen, and processors has led to stakeholders to secure market, but resulted in the intensification of hierarchy among them in global value chain, because multinational companies could control indirectly over the farming system through exclusive middlemen. Secondly, social and ecological costs imputed by multinational companies to coffee farmers in the name of creating shared value has deteriorated the economic profits of stakeholders such as farmers and middlemen. As a result, it has led to the configuration of systematically hierarchical and subordinated global value chain in Dak Lak.

• Journal of Energy Engineering
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• v.23 no.2
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• pp.102-113
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• 2014

This study analyzes whether the value-added structure of Korean bioenergy industry exhibits a virtuous cycle through the value chain(VC) within bioenergy firms, using a regression analysis based on a survey to Korean bioenergy companies. As a result, in Korean bioenergy companies, the R&D outputs positively influence an increase in production, and a decrease in production costs positively influences an increase in profit rates per sales. However, the government's supports for R&D is analyzed neither to lead an increase in corporates' R&D investments, nor to contribute to an increase in their R&D outputs. In addition, it turns out that an increase in production does not contribute to a decrease in production costs. Besides, it is analyzed that an increase in profit rates per sales does not contribute to an increase in production or an increase in the R&D investments. The virtuous cycle of the value chain in Korean bioenergy firms is, therefore, estimated to be weak. This study has a policy implication to need further efforts to create the virtuous cycle in the VC of Korean bioenergy industry.

• Journal of the Korean Society of Clothing and Textiles
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• v.33 no.12
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• pp.1910-1923
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• 2009

This paper reviews four factors involved in apparel and textile manufacturing procedures under international economic fluctuation. This work will be helpful to evaluate the efficiency of global manufacturing systems. Production costs including direct costs related to material and labor costs, and indirect costs associated with manufacturing running ones are significantly correlated to diverse visible and invisible elements such as infrastructure and the labor skills of foreign manufacturing areas, which might create an apparent difference in production costs. Manufacturers can consider how to improve the efficiency of manufacturing systems through a review of the co-relationship between manufacturing procedures and four factors such as manufacturing systems, production outsourcing types, manufacturing locations, and production costs in detail. In addition, the four factors are the core parameters of determining or contributing to the efficiency of a production schedule that is ultimately associated with the supply chain management (SCM) to efficiently conduct Quick Response (QR).

• Elastomers and Composites
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• v.52 no.2
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• pp.114-130
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• 2017

Enhancing the properties of rubber, such as the tensile strength, modulus, and wear abrasion, by the addition of carbon black and silica as fillers is very important for improving the performance of rubber products. In this review, we summarize the general features of 'the reinforcement of rubber by fillers' and the equations for representing the reinforcement phenomena. The rubber reinforcement was attributed to enhancement of the following: the rubber, bound rubber, formation of networks, and combination between rubber chains and silica followed by entanglement. The reinforcement capability of silica species with different surface and networked states demonstrated the importance of the connection between the silica particles and the rubber chains in achieving high reinforcement. The model involving combination followed by entanglement can provide a plausible explanation of the reinforcement of rubber by carbon black and silica because the combination facilitates the concentration of rubber chains near the filler particles, and entanglement of the rubber chains around the filler particles enforces the resistance against deformation and breakage of rubber compounds, resulting in high reinforcement.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2003.05a
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• pp.293-297
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• 2003

최근 공급사슬관리(SCM)는 인터넷을 기반으로 하는 e-SCM 환경으로 발달하고 있다. e-SCM은 웹을 통한 기업의 원자재 조달에서부터 최종제품이 고객에 이르는 전 과정에 관련된 많은 업무를 효율적으로 관리하는 것으로 공급사슬에 있는 많은 기업의 참여가 요구된다. 본 연구에서는 수주생산기업의 e-SCM 구매시스템에서 구매의도를 지닌 참여기업의 웹 로그 데이터를 분석 및 활용하는 방안을 제시하여 참여기업의 충성도와 수주전략 수립을 위한 방안을 제시하고자 한다.

• Journal of Digital Convergence
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• v.13 no.10
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• pp.255-261
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• 2015

This paper aimed to analyze the factors affecting on the implementation of supply chain management (SCM) system of manufacturing company in Korea. For preparation of the data for this research, the Internet-based questionnaires with 5 Likert's scale were performed to the 125 manufacturing companies in Korea. The affecting factors on the implementation of SCM system were crystallized through factor analysis methods. And the correlations between factors were analyzed with structural equation model (SEM). The factors affecting on the implementation of SCM system are company's IT-competence and relationship with supply chains. This paper could contribute to show the guideline for the successful implementation of SCM system to the korean manufacturing company.

• Journal of the Economic Geographical Society of Korea
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• v.17 no.3
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• pp.465-481
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• 2014

This study is about an apparel industry in Guro-Gasan where is growing up to the one of the apparel industry cluster beyond an agglomeration in Seoul. The purpose of this study is twofold: (1) to define industrial functions and roles of Guro-Gasan in a value chain of the apparel industry; and (2) to understand whether an industrial cluster is built on the local networks. This study reviewed formation and transitions of its local industries and industrial size, characteristics, spatial distribution and spatial properties using GIS analysis and field surveys. Through in-depth interviews, it analyzed the production system and spatial dispersion of the value chain to understand its functions and roles.

• 한국해양학회지
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• v.28 no.2
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• pp.107-113
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• 1993

Interrelationship between bacterial and phytoplankton variables and associations of this relationship with phytoplankton community structure were studied from July, 1990 to October, 1991 in the estuarine system of Mankyung and dongjin Rivers where estuarine mixing is very active. During the study period only bacterial production and chlorophyll were always significantly correlated (r$^2$>0.36, p<0.02), suggesting that phytoplankton-biomass related process seemed to be related to bacterial production in the estuarine waters. However, bacterial production comprised only a small fraction (on average<2.6) of primary production throughout the study period, suggesting that those parameters were uncoupled. this might be partly due that phytoplankton, food particles for zooplankton, food particles for zooplankton, were mostly composed of large and/or chain-forming diatoms.

• Journal of the Korean association of regional geographers
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• v.21 no.1
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• pp.114-136
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• 2015

Manufacturing FDI is mainly conducted by establishing production firms in the host country. The foreign branch facilities which are closely connected to headquarters in the home countries through the global supply chain have decisive effects on the integration of global production system and on the pattern changes in international logistics. Therefore, the study on the development process of manufacturing supply chain through FDI can be the key factor to understand the global production and international logistics system. This study analyzes the spatial and temporal patterns of direct investments in China by Korean companies in the manufacturing sectors. The results show a great deal of differential in periods and regions in investment. At the early period of Korean manufacturing FDI, the coast provinces in China which are adjacent to Korean peninsula were main investment target regions. However recently, coastal and inland provinces far away from Korea have been important for attracting Korean manufacturing capital. If further affiliated studies are done, the results of this study would be more beneficial to understand the logistics flows of regional supply chain based on the manufacturing FDI.

• Proceedings of the Korean Society of Applied Pharmacology
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• 1994.04a
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• pp.266-266
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• 1994

$B^{30}$ 위치에 homoserine이 치환된 사람 insulin 유사체 ($B^{30}$ -homoserine) insulin을 생산하기 위해, insulin의 B 사슬 유전자에 A 사슬 유전자를 직접 연결한 insulin 유전자를 설계하였다. 이 유전자는 10개의 oligonucleotide로 나누어 합성하여 T4 DNA ligase로 결합시킨 후, pUC19 plasmi의 polylinker 영역에 삽입하였다. 이 유전자의 발현을 높이기 위해 이 유전자는 다시 tac promoter의 지배를 받는 lacZ 유전자의 Cia I 또는 Hpa I 제한부위에 도입하여 융합시켰다. 이렇게 구축된 운반체 pTBA나 pKBA를 Escherichia coli JM103 균주에 형질도입시킨 후, 이를 4시간 배양한 후 0.05mM이상의 isopropyl-$\beta$-D-thiogalactopyranoside (IPTG)를 배지에 공급해 주고 2시간 더 배양하였을 때 유전자 발현이 잘 유도되어짐을 알 수 있었다. 이 때 생산된 insulin 전구체들은 세포내 불온성인 inclusion body로 축적되어지는 것을 관찰하였으며, 그 생산량은 세포내 전체 단백질량의 30%에 달하였다.