• Journal of Korean Society of Coastal and Ocean Engineers
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• v.28 no.4
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• pp.222-231
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• 2016

Multi-member lattice-type structures including jackets and tripods are being considered as good alternatives to monopile foundations for relatively deep water of 25-50 m of water depth owing to their technical and economic feasibility. In this study, the reliability analysis of bottom-fixed offshore wind turbines with monopile and/or multi-member lattice-type foundations is carried out and the sensitivities of random variables such as material properties, external wind loadings and scouring depth are compared with respect to different types of foundations. Numerical analysis of the NREL 5 MW wind turbine supported by monopile, tripod and jacket substructures shows that the uncertainties of soil properties affect the reliability index more significantly for the monopile-supported OWTs while the reliability index is not so sensitive to the material properties in the cases of tripod- and jacket-supported OWTs. In conclusion, the reliability analysis can be preliminarily carried out without considering soil-pile-interaction in the cases of tripod- and jacket-supported OWTs while it is very important to use the well-measured soil properties for reliable design of monopile-supported OWTs.

• KIPS Transactions on Software and Data Engineering
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• v.12 no.10
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• pp.461-470
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• 2023

While speech animation generation employing deep learning has been actively researched for English, there has been no prior work for Korean. Given the fact, this paper for the very first time employs supervised deep learning to generate Korean speech animation. By doing so, we find out the significant effect of deep learning being able to make speech animation research come down to speech recognition research which is the predominating technique. Also, we study the way to make best use of the effect for Korean speech animation generation. The effect can contribute to efficiently and efficaciously revitalizing the recently inactive Korean speech animation research, by clarifying the top priority research target. This paper performs this process: (i) it chooses blendshape animation technique, (ii) implements the deep-learning model in the master-servant pipeline of the automatic speech recognition (ASR) module and the facial action coding (FAC) module, (iii) makes Korean speech facial motion capture dataset, (iv) prepares two comparison deep learning models (one model adopts the English ASR module, the other model adopts the Korean ASR module, however both models adopt the same basic structure for their FAC modules), and (v) train the FAC modules of both models dependently on their ASR modules. The user study demonstrates that the model which adopts the Korean ASR module and dependently trains its FAC module (getting 4.2/5.0 points) generates decisively much more natural Korean speech animations than the model which adopts the English ASR module and dependently trains its FAC module (getting 2.7/5.0 points). The result confirms the aforementioned effect showing that the quality of the Korean speech animation comes down to the accuracy of Korean ASR.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.15 no.5
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• pp.77-98
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• 2020

Recently, the government provided about 35 trillion won to start-ups through a large amount of start-up support funds from the Korea Credit Guarantee Fund and the Korea Development Bank, and more than 100 trillion won to start-ups over the past three years.(2015-2018) The Ministry of SMEs and Startups announced that a total of 1.4517 trillion won will be supported by 16 ministries (90 projects) after surveying start-up support projects by ministries in 2020 to create a start-up country. Indeed, among the budgets supported by the Ministry of SMEs and Startups, startups accounted for 85%, while scale-ups (growth and maturity) were only 15%. However, the survival rate of Korean start-ups was far lower than that of developed countries. The survival rate for the three years after the start-up was 39.1 percent, with only about 4 out of 10 surviving, with 27.5 percent surviving for five years, and only 3 out of 10 surviving. On the other hand, overseas start-ups have a survival rate of twice as high as that of Korea for five years. Accordingly, this study aims to empirically analyze and examine the need for research on nascent entrepreneurs, which have recently been actively supported by the government, as well as the impact of start-up motivation and start-up preparation on the intention to continue business. The survey was conducted from April 1 to May 15, 2020 for nascent entrepreneurs nationwide, and 222 of the total 245 copies were analyzed, and the questionnaire was measured using the Likert 5-point scale. As a result of the analysis, first, all factors constituting start-up motivation were adopted by significantly affecting start-up satisfaction. In addition, among the sub-factors of nascent entrepreneurs' preparation, item preparation was adopted as a significant influence on start-up satisfaction. Second, the nascent entrepreneurs' satisfaction level was adopted by having a significant impact on the business continuity. Third, some of the motivations for self-realization of the motivation for start-ups were adopted by having a significant impact on the business continuity. In addition, the preparation of items for the start-up preparation of nascent entrepreneurs was partially adopted as they had a significant impact on the business continuity. Fourth, it was adopted by the mediation effect of start-up satisfaction between the motivation of the nascent entrepreneurs' preparation and the business continuity. In addition, it was adopted by the medium effect of start-up satisfaction between the nascent entrepreneurs' preparation and the business continuity. Based on the results of these studies, it is intended to draw practical implications, and to provide useful policy implications to increase nascent entrepreneurs' satisfaction and continue to carry out their start-ups.

• Journal of Korea Fishing Vessel Association
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• v.55
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• pp.25-29
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• 1993

• Defense and Technology
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• no.5 s.123
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• pp.71-71
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• 1989

• KLA journal
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• no.5-6
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• pp.25-27
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• 1958

• 월간낙농육우
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• v.27 no.6 s.302
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• pp.126-131
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• 2007

• Journal of Korean Electronics
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• v.9 no.7
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• pp.36-40
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• 1989

• Proceedings of the Korean DIstribution Association Conference
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• 2004.02a
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• pp.11-36
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• 2004

• Proceedings of the Korea Society for Industrial Systems Conference
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• 1999.12a
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• pp.267-274
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• 1999