• International Commerce and Information Review
• /
• v.14 no.4
• /
• pp.61-88
• /
• 2012

Korea exported the passenger cars(HS 8703) such as key export item 41billion dollars in 2011. But the Korea's representative enterprises which bound forward in the global markets, have a tough time in the Japanese markets alone, and especially, they hardly sell key items such as automobiles. Japan is the third largest automobile market sold annually 5 millions, despite its long-term depression. At this time of point, analyzing the competition structure of the automobile market and proposing the strategies of the Korean enterprises's export to Japan would be a great academic contribution. This study analyzed the Japanese automobile market by the method of upper enterprises' Concentration Ratio($CR_k$) based on J. S. Bain's SCP paradigm and the literature study on the characteristics of the Japanese market by Itami Hiroyuki. As a result, in the Japanese automobile market, it is very likely that there exist market dominating enterprises, but at the same time, the movement of change also could be grasped between Japanese car makers. Accordingly, the cross-leveraging distribution strategy, brand strategy and Japan specification(designed for Japan) development strategy of the Korean enterprises' export to Japan which can respond to the change of the Japanese automobile markets were proposed.

• Journal of The Korean Association of Information Education
• /
• v.23 no.6
• /
• pp.675-687
• /
• 2019

As interest in artificial intelligence increases, each university has been establishing a special graduate school with artificial intelligence major, and recently, the Korea government has established various support policies for artificial intelligence education. However, each university has a lot of difficulties because it has little experience in operating graduate education with the latest field of artificial intelligence and it is not easy to find experts. In this study, the response of graduate school students majoring in artificial intelligence was analyzed using IPA technique, and the direction of education of graduate school artificial intelligence major was searched. Among the 40 items surveyed by IPA, 12 items such as systematization of artificial intelligence curriculum, progress of class considering learning level, improvement of academic relations with guidance professors were extracted as items to be improved first. On the other hand, 8 items such as assistant capacity, and relationship with colleagues were overloaded, and twelve items such as instructor's lecture competency, appropriateness of educational contents, learner's artificial intelligence skills and knowledge, and attitude acquisition were to be maintained. In addition, eight items such as convergence education curriculum and diversity of education methods were all low in importance and performance. It is suggested that AI graduate school should be divided into two tracks(technical specialization, convergence expansion) by educational goal, and each track should be conducted by level-specific educational contents and methods suitable for student level. The curriculum should be elaborate and systematic to acquire AI knowledge, skills, and attitudes, and should have an individualized guidance system centered on excellent faculty members.

• Journal of dental hygiene science
• /
• v.4 no.3
• /
• pp.111-115
• /
• 2004

This study was aimed to establish the self-concept as the dental profession and dedicate to the development of dental hygienist role by understanding the relation between the self-concept of dental hygienist and practice performance as dental hygienist. Following the thorough investigation of this correlation, the importance of self-concept as the dental profession was confirmed, and the understanding about the practice performance as dental hygienist was renewed. Dental hygienist working in dental clinic located in Jeonju city, Jeollabuk-Do were selected as the subjects of this study, and the materials were collected from Mar. 11 to Mar. 25, 2002 for 15 days. SPSS was used for analysis of data to deal with ANOVA and verification of Pearson correlation. The results of this research can be summarized as follows; 1. In comparison of the degree of professional self-concept according to the general characteristics of the subjects, there were significant differences in religion(p<.05) and educational background(p<.01). 2. In comparison of the degree of practice performance according to the general characteristics of the subjects, the results showed the significant difference in religion(p<.05). 3. There were highly significant correlation between the professional self-concept and practice performance as dental hygienist(F=.663, p<.001).

• Journal of Digital Convergence
• /
• v.11 no.1
• /
• pp.339-347
• /
• 2013

Recently, Korean medium-sized medical organizations require innovative strategies. Network-driven concerns in Korean medical organization have been a front burner issue to enhance economic and managerial efficiencies. Effective network-driven collaboration depends upon effective processes and economics strategies among medical providers group. From this motivation, we studied and provided the systems' theoretical background and networked hospital system structures. The aim of suggested research model in this paper is to overcome demerit of stand-alone medium-sized hospitals and analyze a system dynamics model to measure managerial performances. The developed system dynamics model is to quantify the effects of network strategy based on the historical financial data of real-life hospitals network experiences. The network effects are resulted in efficiencies and effectiveness enhancements in competitiveness through advertisement and effective education system. The simulations of system dynamics results can explain the improvement in financial outcome by joining in the network group. The network effects are shown more effective in dental hospital than other groups. In conclusion, it is expected that network effects have a critical influence of managerial, marketing, and medical collaboration performance for any type of medical hospitals.

• Journal of the East Asian Society of Dietary Life
• /
• v.13 no.2
• /
• pp.111-121
• /
• 2003

Physicochemical and sensory characteristics of turnip Donchimi prepared with Chinese(DC), Korean(DK) and European origin(DE) were analyzed during fermentation at $0^{\circ}C$. Salt concentrations of Dongchimi liquid were around 1.3% during fermentation. The pH, the total acidity, Lactobacilli number and turbidity were observed during fermentation of Dongchmi. DC was fermented the most rapidly among three based on the acidity, turbidity and lactic acid bacteria number. DC maintained higher hardness in textural properties during fermentation compared to DE, although it was evaluated lower scores of appearance in sensory test, and less Hunter color a value and anthocyanin content, compared to DK or DE. DK showed the highest in anthocyanin content, Hunter color a value, and hardness. Sensory evaluation showed that the scores of color, hardness, and overall preference of Donchimi were high in the order of DK>DC>DE. Score of overall preference of turnip Dongchimi was the highest with 6.7(10 cm line scale) in DK at the 40th day of fermentation, the optimum ripening time, but the lowest with 3.5 in DE.

• Korean Journal of Environment and Ecology
• /
• v.25 no.4
• /
• pp.621-630
• /
• 2011

This research examines the push and pull factors of temple stay in Korean national parks. 152 participants of temple stay in Woljeongsa and Guryongsa in national parks in Gangwon-do area completed a survey to access their reasons for participating in temple stay(push factors) and to evaluate how well the visiting experience performed on a selected set of attributes(push factors). Demographics of respondents were similar to the visitor characteristics of Korean national parks. The result of factor analysis identified 6 push factor domains of 'self actualization', 'health enhancement', 'nature assimilation', 'relationship elevation', 'religious experience', and 'leisure experience'. 6 pull factor domains were 'recuperative quality', 'quality of a temple stay program', 'attributes of a temple', 'user convenience', 'tourism experience' and 'accessibility and transportation'. Satisfaction level of temple stay in a national park was very high of 4.71 in a 5 Likert scale. Gangwon- Do was most preferred with the percentage of 89.2 as a suitable area for temple stay in a national park. Findings of multi-dimensional tourism motivations of temple stay in a national park that encompass nature tourism, cultural tourism and religious tourism is expected to provide useful information for the future development of a more competitive temple stay program and a marketing strategy. However, more defined successive research work is required to generalize findings of wellness oriented push and pull factors of temple stay based on nature in national parks.

• Korean Journal of Environment and Ecology
• /
• v.32 no.3
• /
• pp.332-341
• /
• 2018

This study aims to establish operating methods for value-oriented and competitive operation of Dalseong Wetland Ecological Learning Center in Daegu, Korea, which will open in 2018. For this purpose, we surveyed 77 Ecological learning facility managers nationwide using 22 questions on the subjects such as the operating method, volunteer, budget, and profit. The managers of 50 ecological learning facilities (Type A) responded, and we extracted the responses by the managers of 12 ecological learning facilities (Type B) that had the similar size as the Dalseong Wetland Ecological Learning Center and conducted an additional analysis. The results of the survey indicated that it was advisable for Daegu Metropolitan City to operate the Dalseong Wetland Ecological Learning Center and that the staff at least 3-5 managers were necessary while the number of volunteers to regularly work at the center was estimated to be 25-30. Excluding labor costs, the annual operating budget was estimated to be between 150 million won and 200 million won if Daegu Metropolitan City operates the facility directly. This study is meaningful in that it provides reference data to establish realistic and detailed management plan of the Dalseong Wetland Ecological Learning Center based on the opinions of the surveyed managers of ecological learning facilities in Korea.

• Journal of the Earthquake Engineering Society of Korea
• /
• v.10 no.3 s.49
• /
• pp.125-134
• /
• 2006

Conventional methods for the assessment of liquefaction potential were primary for severe earthquake regions $(M{\geq}7.5)$ such as North America and Japan. In Korea, an earthquake related research has started in 1997, but most contents in the guidelines were still quoted from literature reviews of North America and Japan, which are located in strong earthquake region. Those are not proper in a moderate earthquake regions including Korea. Also the equivalent uniform stress concept (Seed & Idriss, 1971) using regular sinusoidal loading which is used, in a conventional method for the assessment of liquefaction potential, can't reflect correctly the dynamic characteristics of real irregular earthquake motions. In this study, cyclic triaxial tests using irregular earthquake motions are performed with different earthquake magnitudes, relative densities, and fines contents. Assessment of liquefaction potential in moderate earthquake regions is discussed based on various laboratory test results. From the results, screening limits in seismic design were re-investigated and proposed using normalized maximum stress ratios under real irregular earthquake motions. Also from the tests using constant wedge loading and incremental wedge loading, the characteristics of liquefaction resistance of saturated sand under irregular ground motions are investigated.

• Journal of the Institute of Electronics Engineers of Korea TC
• /
• v.38 no.4
• /
• pp.11-17
• /
• 2001

In this paper, we propose a polarity decision carrier recovery algorithm for high order QAM(Quadrature Amplitude Modulation), which has robust and large frequency acquisition performance in the high order QAM modem. The proposed polarity decision PD(Phase Detector) output and its variance characteristic are mathematically derived and the simulation results are compared with conventional DD(Decision-Directed) method. While the conventional DD algorithm has linear range of $3.5^{\circ}{\sim}3.5^{\circ}$, the proposed polarity decision PD algorithm has linear range as large as $-36^{\circ}{\sim}36^{\circ}$ at ${\gamma}-17.9$. The conventional DD algorithm can only acquire offsets less than ${\pm}10\;KHz$ in the case of the 256 QAM while an analog front-end circuit generally can reduce the carrier-frequency offset down to only ${\pm}100\;KHz$. Thus, in this case additional AFC or phase detection circuit for carrier recovery is required. But by adopting the proposed polarity decision algorithm, we can find the system can acquire up to ${\pm}300\;KHz$at SNR = 30dB without aided circuit.

• Journal of the Institute of Electronics Engineers of Korea CI
• /
• v.41 no.1
• /
• pp.9-18
• /
• 2004

This paper presents an efficient image compression method for memory reduction in multimedia processor which can be simply implemented in hardware and provides high performance. The multimedia processor, which includes processing of high-resolution images and videos, requires large memories: they are external frame memories to store frames and internal line memories for implementing some linear filters. If we can reduce those memories by adopting a simple compression method in multimedia processor, it will strengthen its cost competitiveness. There exist many standards for efficiently compressing images and videos. However, those standards are too complex for our purpose and most of them are 2-D block-based methods, which do not support raster scanned input and output. In this paper, we propose a low-complexity compression method which has good performance, can be implemented with simple hardware logic, and supports raster scan. We have adopted 1${\times}$8 Hadamard transform for simple implementation in hardware and compression efficiency. After analyzing the coefficients, we applied an adaptive thresholding and quantization. We provide some simulation results to analyze its performance and compare with the existing methods. We also provide its hardware implementation results and discuss about cost reduction effects when applied in implementing a multimedia processor.