• Journal of the Korean Society for Precision Engineering
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• v.25 no.11
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• pp.58-65
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• 2008

The study on dual arm robot manipulator which consists of two 6-DOF srms and one 2-DOF torso is introduced. This dual arm robot manipulator is designed for automation of assembly process in automotive manufacturing line. Each industrial 6-DOF arm can be used as a stand-alone type of industrial robot manipulator with 6-DOF and as a manipulator part of dual arm robot at the same lime. These structures help the robot maker willing to succeed in emerging market of dual arm robots have the high competitive power for the current industrial robot market and the emerging market of dual arm robot at the same time. The research results of the design concept, workspace analysis and the PC-based controller will be introduced.

• Journal of the Korea Society of Computer and Information
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• v.21 no.11
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• pp.151-158
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• 2016

This study analyzes the stock market reaction of disclosure of technological information using events which are collected in the Korean stock market for the thirteen-year period between January 2002 and December 2014. We find that abnormal return on the disclosure day of full sample firms is positive and statistically significant. However, abnormal return of high R&D intensity subsample is a larger positive number than that of the low one. Using a longer window, it shows that low R&D intensity negatively decreases the long term performance after the adoption of new technological information. The empirical evidence of the studying is expected to serve as a good judging guide-line for the investors.

• Proceedings of the KSR Conference
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• 2003.10b
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• pp.297-304
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• 2003

As the high speed rail to be opened at 2004, the. railroad will dominate over the transportation market in the Seoul-Busan corridor compared to road transport. But, it is obvious that the LOS(level of service) of railroad at 2004 will be worse in the areas that are not served KTX. For the speed-up of conventional line, it is a worldwide trend that tilting trains are served on the conventional railway line. That is the reason serving tilting trains is very efficient to use existing facilities and improve cruise time when capacity is available. In this paper, we suggest 10 routes are replaced with present operating trains(saemaeul, mugunghwa) by the tilting train.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.9 no.6
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• pp.609-616
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• 2016

This paper is proposed a customized market analysis method using SVM and collaborative filtering. The proposed customized market analysis scheme is consists of DC(Data Classification) module, ICF(Improved Collaborative Filtering) module, and CMA(Customized Market Analysis) module. DC module classifies the characteristics of on-line and off-line shopping mall and traditional markets into price, quality, and quantity using SVM. ICF module calculates the similarity by adding age weight and job weight, and generates network using the similarity of purchased item each users, and makes a recommendation list of neighbor nodes. And CMA module provides the result of customized market analysis using the data classification result of DC module and the recommendation list of ICF module. As a result of comparing the proposed customized recommendation list with the existing user based recommendation list, the case of recommendation list using the existing collaborative filtering scheme, precision is 0.53, recall is 0.56, and F-measure is 0.57. But the case of proposed customized recommendation list, precision is 0.78, recall is 0.85, and F-measure is 0.81. That is, the proposed customized recommendation list shows more precision.

• Journal of Navigation and Port Research
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• v.41 no.4
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• pp.181-188
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• 2017

In the existing ship sales market, prices determined based on the prices of similar ship types that recently traded. ince the 2008 financial crisis, ship prices have fluctuated, and ship price criteria have become ever more necessary to the imminent value of the ship. Therefore, this research used the hedonic price model to estimate imminent values of ships. In this study, the influence on ship prices was analyzed by the value of each characteristic and an estimated functional formula was. Out of the four models suggested by the hedonic price model, an optimal model was selected with variance inflation factors and a stepwise selection. For this, the influence of determinants of ship prices was analyzed based on actually traded ships and characteristic data. The selected model s the Log-Line model; as a result of regression analysis, eight variables, including DWT, Age, Market Value, Short-Term Charter, Long-Term Charter, Enbloc, Special Survey Due and Builder were to affect the ship price model. This model is expected to be useful for objective and balanced ship price evaluation.

• The Journal of the Convergence on Culture Technology
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• v.10 no.5
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• pp.331-339
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• 2024

This study seeks to expand the jewelry market and overall development of the industry by understanding the fashion jewelry market and researching marketing strategies based on changes in market consumption. Looking at recent changes in the jewelry market, the number of new consumers (fashion jewelry buyers) has increased since 2014, leading to a recovery in purchases and strong sales. However, the decline in costs is prolonged, the focus on purchasing low-priced products is increasing, and there is a growing trend of purchasing products other than rings. Items are becoming more diverse, including bracelets and necklaces, and the popularity of imported products and brands is intensifying. Ultimately, the penetration of fashion jewelry and the growth of imported brands are expected to continue for a long time. The fashion jewelry market is a market that appears to have ample potential to grow into a larger market, filling the structural limitations of the jewelry market and providing consumer satisfaction in line with recent consumption trends. If so, We need to think about how to grow and develop this market, and We need to view it as a jewelry market in a broad sense, and it is a market that can serve as a bridgehead for the precious metal jewelry market to expand into the accessory market in the future. Therefore, it is necessary to create a jewelry market by utilizing the advantages of fashion jewelry, such as diversity of materials and expressions, price competitiveness, wide distribution channels and consumer accessibility, reflection of trends, and consumer awareness.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.41 no.2
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• pp.159-166
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• 2018

The proliferation of information technologies made it possible to produce information products of different versions at much lower cost comparing to traditional physical products. Thus it is common for information product manufacturers to consider vertically differentiated product line for more profit through improved market coverage. Another salient characteristic of most information product is network externality. Existing researches dealing with vertical differentiation and network externality usually assumed oligopolistic market where vertically differentiated products are provided by competing companies, respectively. Moreover, they analyzed the essentially dynamic characteristic of network externality statically. In this study, different from the previous researches, the vertical differentiation strategy of a monopolistic company under network externality is dynamically analyzed. We used a two-period model to accommodate the dynamic feature of network externality. Based on the two-period model, the profit maximizing solutions are analyzed. The results showed that a monopolistic company has no incentive to differentiate products vertically when the network externality is absent. On the contrary, when the network externality exists, the monopolistic company can derive more profit by vertically differentiating the product line. It is also shown that, for more profit, the monopolistic company should keep the quality difference between the high quality product and the low quality product as greater as possible.

• Journal of the Korean Society of Clothing and Textiles
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• v.38 no.2
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• pp.216-230
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• 2014

The importance of the Chinese fashion market is increasing; therefore, this study investigates the possibility of implementing a Word-of-Mouth (WOM) marketing strategy among Chinese students in Korea. This study examines the effects of consumer characteristics (similarity, opinion leadership, and fashion innovativeness), awareness of Korean fashion brands, satisfaction with Korean fashion products on WOM experiences and WOM behavior (off-line as well as on-line). A total of 161 responses from Chinese students in Korea were gathered and analyzed using SPSS 20.0 for descriptive statistics, factor analysis, and regression analysis. The results show that consumer characteristics (except similarity) significantly influence WOM experiences, opinion leadership influence off-line WOM behavior, and fashion innovativeness influence online WOM behavior. However, similarity has no influence on WOM experiences and WOM behavior. Second, Korean brand awareness affect both WOM experiences and behavior; however, satisfaction with Korean fashion products only affected WOM experiences. This study showed the feasibility of conducting a WOM marketing strategy using the WOM effects of Chinese students in Korea. The study may help the Korean apparel industries establish an entry strategy for the Chinese market.

• Journal of Global Scholars of Marketing Science
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• v.13
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• pp.71-88
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• 2004

Although the factors that affect the width of latitude of price acceptance is well documented, the attempt to develop a practice-oriented methodology to calibrate the region of price insensitivity (i.e., a latitude of price acceptance) for a given individual brand has been relatively rare. The researcher aims to try to full this gap by developing a conjoint analysis-based procedure that can be applied to many industries. Furthermore, we examine the difference in the latitude of price acceptance between on- and off-line transaction in stock industry in Korea. The conjoint analysis-based procedure was applied to measure the disaggregate price response curve for individual stock investment both on- and off line transaction channel. The curves from the samples enable us to estimate the individual choice probabilities corresponding to applied price points. Using t-test the differences in mean choice probabilities between the list price and another price point were tested, through which we can get the latitude of price acceptance for a given brand in stock market. These procedures were tested in on- and off-line stock market in South Korea. The results showed that investors on off-line channel have wider latitudes of price acceptance than the investors on on-line transaction system.

• Journal of Korea Game Society
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• v.14 no.1
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• pp.7-18
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• 2014

For the rapid growth of Chinese on-line game market in this decade, it became more necessary to study Chinese on-line game industry, business strategy, and, especially the behavioral characteristics of on-line game users. In spite of these necessities, there were a few studies on these research fields in China. The current study investigated the relationships among perceived price, perceived quality, the flow, perceived value, and loyalty of Chinese on-line game user. In addition, we tested the influence factors on perceived value and game user loyalty of on-line game user through AMOS method. Results showed that perceived value and game loyalty are positively related perceived price and the flow, the flow and perceived value respectively.