• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.9
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• pp.4138-4146
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• 2011

In surface mount technology, with cellular phones and flat panel displays shrinking in size, the electric goods for making these things are getting smaller as well. Therefore, the technology of mounting components such as 0402 and 0603 Chip is on the rise. The chip mount manufacturing companies have studied the mount technology to prevent the missing insertions or improper insertion. This study suggests arranging the mechanical structure by using fiber sensors to eliminate missing insertions or improper insertions and developing the technology for upgrading system algorithms.

• Journal of Industrial Technology
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• v.39 no.1
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• pp.27-31
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• 2019

Semiconductor logistics systems are facing difficulties in increasing production as production processes become more complicated due to the upgrading of fine processes. Therefore, the purpose of the research is to design predictive models that can predict traffic during the pre-planning stage, identify the risk zones that occur during the production process, and prevent them in advance. As a solution, we build FABs using automode simulation to collect data. Then, the traffic prediction model of the areas of interest is constructed using deep learning techniques (keras - multistory conceptron structure). The design of the predictive model gave an estimate of the traffic in the area of interest with an accuracy of about 87%. The expected effect can be used as an indicator for making decisions by proactively identifying congestion risk areas during the Fab Design or Factory Expansion Planning stage, as the maximum traffic per section is predicted.

• Journal of the Economic Geographical Society of Korea
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• v.23 no.3
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• pp.349-368
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• 2020

The aim of this study is to examine the relationship between the characteristics of Korean petroleum and petrochemical industries and the change of participation in global value chains. Since 1960s, Korean petroleum and petrochemical industries have been developed under government's industrial policies. In 1980s Korean petroleum and petrochemical industries served as a key export-oriented industry) of Korea's national economic development. Based on the expansion of large-scale production facilities led by the private sectors from the end of 1980s, Korea became as a major country in the global petroleum and petrochemical industries. Under Korean domestic scale, it shows considerable spatial concentration, in Ulsan Metropolitan City, Yeosu City and Seosan City. However, the degree of spatial concentration is differentiated along the each sectors within the petroleum and petrochemical industry. To improve regional industry competitiveness, each region has adopted different strategies and shifted to structural upgrading and producting high value-added products. Changes in the structure within petroleum and the petrochemical industries at the national level caused a change in the structure of Korea's participation in GVC, but the domestic value-added is lower than that of its major competitors.

• Journal of the Economic Geographical Society of Korea
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• v.3 no.1
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• pp.53-81
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• 2000

Between 1980 and 1997 the Korean textile and clothing industry (KTCI) experienced the transformation of export-led accumulation regime rooted in domestically-derived price competitiveness into the combination between foreign mass production involving the geographical extension of productive forces and quality strategy based on upgrading technology and automation involved in the domestic market for high quality and price products. This restructuring of the KTCI is rooted at the crisis in the export-led growth regime implemented unity 1980 due to the rapid increase in wage levels by the ‘great labour movement’occurred in 1987. In particular, increased wage and collective bargaining realized through labour empowerment led to the crisis in the conjoin between mass production and mass export based on long working hours and low wage structure. The aim of this paper is to explore the transformation of development modes between 1980 and 1997 that can help us in understanding the fundamental reasons for the restructuring of the KTCI. To this end, the paper identifiles the changing accumulation regimes between 1980 and 1997 mediated by wage-labour relations, inter-firm relations and state-film relations, which are insitutional forms of the modes of regulation.

• Journal of Digital Convergence
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• v.18 no.9
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• pp.81-91
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• 2020

The logistics industry is a basic and strategic industry that supports the development of national economy and society. The purpose of this paper is to evaluate the logistics efficiency of 22 cities in Guangxi and Yunnan provinces in China, and to grasp the problems and constraints and present policy proposals to promote the transformation and upgrading of the industrial structure in Guangxi and Yunnan provinces. In this paper, five input indexes and four output indexes were selected and the data from 2016 to 2018 were analyzed through DEA method. According to the analysis, the logistics efficiency of Guangxi and Yunnan provinces is not bad overall, but the development of each region is not balanced and the level of logistics efficiency is quite different. And it is found that each city needs to further improve the level of scale because the input and production structure of logistics resources is unreasonable. The limitation of this study is that it is difficult to generalize the analysis results because only the data over the past three years have been analyzed. It is necessary to comprehensively implement longitudinal and transverse analyses by extending the future analysis period over a long period of time.

• Journal of Digital Convergence
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• v.10 no.10
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• pp.483-490
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• 2012

In parallel with advancement of the industrial society and accompanied quality-of-life improvement, jewelry is now rather viewed as one of common accessories used in daily life, than as a luxurious item as treated before change of perception about it in the past, attracting thus gradually multiplying demand for it. Thanks to rapid spread of multi media like the Internet, an increasing number of people have come to develop great liking for exceptional design and unique format of jewelry products. Following drain of their reserves, natural gems are unlikely to meet the demand for them fully in the future. As a consequence, it seems essential to rely on synthetic, artificial, imitation jewelry or organic substances and quasi-mineral in amorphous structure for substitute jewelry. Since synthetic jewelry has such a great potential as substitute jewelry, it is expected to maximize added value to jewelry if and when accompanied with development of creative design and upgrading of processing technology for jewelry, in addition to various types of synthetic jewelry and glass that have been already put in use as substitute substances. Synthetic jewelry is thus believed to be able to greatly contribute to progress of the jewelry industry. In many countries of the world, jewelry and gem industry has been regarded as one of promising sectors vital in enriching the national wealth. In this context, the Korean Ministry of Finance and Economy announced in July 2007 "an activating policy for the jewelry and gem industry, declaring to cultivate and grow it to be new engine for the nation's growth". The present paper thus aims to conduct a study exclusively on cutting design of synthetic jewelry as a part of measures to activate the jewelry industry in Korea. Efforts are made to develop designs for jewelry that are unique and different from the conventional stereotyped form of polishing and are added with color, pattern and fashionable cutting. Priority is given in this regard to designing jewelry that may attract general public and may be shared by public beyond the limit of conventional design for jewelry and producing products that stand in contrast with other products. By upgrading the quality of jewelry design, competitiveness of the jewelry industry may be ensured and the creative area of jewelry design may be expanded by far.