• Proceedings of the National Institute of Ecology of the Republic of Korea
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• v.1 no.1
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• pp.31-40
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• 2020

The rapid development of technologies in unmanned aerial vehicles (UAVs) has led to their use in various areas. UAVs are mainly used for commercial purposes, but their utilization is increasingly important in other areas because their operation cost is less than satellites and aerial imaging. The utilization of UAVs in the environment/ecology area is relatively new. Therefore, identifying the trends of UAV-related spatial information is significant in basic research for UAV utilization. This study quantitatively identified domestic and international research trends related to UAV utilization and analyzed research areas. An attempt was also made to identify upcoming UAV-related topics in the environment/ecology research field using text mining to analyze the bibliographic information of global research literature. Domestic UAV-related studies were classified into seven clusters where basic research on "UAV technology/industry trends" was abundant, and studies on data collection and analysis through UAV remote sensing technology have increased since 2015. Eight clusters were identified for international studies where the most active research area international was "remote sensing technology/data analysis". In addition, Canopy, Classification, Forest, Leaf Area Index, Normalized Difference Vegetation Index, Temperature, Tree, and Atmosphere appeared as the main keywords related to environment and ecology. The appearance frequencies and association strengths were high because the advancement in UAV optical sensor technology and the rapid development of image processing technology enabled the acquisition of data that could not be obtained from existing spatial information. They are recognized as future research topics as related domestic studies have begun corresponding to international research.

• Journal of the Korean Society for Precision Engineering
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• v.30 no.1
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• pp.113-119
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• 2013

To develop a new nuclear fuel, it needs to make a test fuel rod and carry out burn-up test in the test loop of a research reactor to check the irradiation characteristics of the nuclear fuel. At that time, several sensors such as thermocouples, LVDTs and SPNDs are needed to be attached in and out of the fuel rod and connect them with instrumentation cables. Then, the instrumentation cables deliver the signals measured by the sensors to the measuring device located outside of the reactor pool. In particular, to install a thermocouple in a fuel rod, it needs to drill off holes on the alumina blocks and sintered $UO_2$ pellets. However, because the hardness of a sintered $UO_2$ pellet is 700 Hv (or HRC 61) and that of an alumina block is 1480 Hv, a special drilling machine which adapts a diamond coated drill bit had developed. In this study, several case experiments have been carried out to find an optimal drilling condition of the drilling machine. And, using the optimal drilling condition, minimum numbers of the holes that a drill bit can drill off are verified.

• Journal of Korea Port Economic Association
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• v.37 no.1
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• pp.121-142
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• 2021

The purpose of this study is to identify environmental factors affecting manpower utilization of container terminals. 300 questionnaires were distributed to employees working in terminal operators in Busan and Gwangyang port. Based on the results of multiple regression analysis, first, it is proved that technology development, organizational culture and social·external environment have a significant impact on manpower utilization of container terminals. Second, this study found that technology development and social·external environment have a significant impact on manpower utilization of container terminals system. Third, it is found that technology development, social·external environment, safety and security change the composition of the workforce between office and field employees. Forth, the number of workforce is expected to gradually decrease due to technology development. Finally, it is found that technology development, organizational culture, social·external environment and terminal operation have a impact on specialization and training system of human resoures.

• Journal of the Korea Computer Industry Society
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• v.2 no.9
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• pp.1155-1162
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• 2001

This paper proposes a method to determine the optimal utilizations of the UNIX systems. This method is developed using the definition-the optimal utilization is the maximum allowable utilization In other words, the optimal utilization is the maximum utilization that can be allowed by users while providing tolerable response time. As the tolerable response time increases, the optimal utilization increases. Therefore, the optimal utilization is obtained at the maximal value of tolerable response time. Our analysis shows tolerable response time is achieved when the average of the trivial response time is less than 0.24 seconds for a given service objective. It also shows the optimal utilization consists of three components-%wio, %sys, and %usr. By way of example, the optimal utilizations of a machine running under the UNIX operating system are computed using proposed method.

• Journal of Korea Technology Innovation Society
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• v.10 no.1
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• pp.143-164
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• 2007

This paper investigates key factors on the utilization and improvement directions of national-level technology roadmaps for technology strategies. There are increasing interest in technology roadmaps to respond to uncertain environment and explore some possible directions of future technology development. To challenge the catching-up status in innovation, technology roadmap have been widely developed both in private and public sectors. In spite of recent increasing adoption of technology roadmap, there are few empirical studies on the level of utilization and improvement directions of technology roadmap with the viewpoints from science and technology experts in national innovation system. Most of studies on technology roadmaps have argued normative recommendations and made suggestions based on case studies. This paper examines the key factors on the utilization and future direction of national-level technology roadmaps. Based on survey from 320 experts in science and technology area, this paper analyzes the level of utilitation and future improvements of national level technology roadmap. The level of technological capabilities and participation experience on the roadmap development process have significant impact on the utilization of national-level technology roadmaps. Also there are three future directions to increase the usage of national-level technology roadmaps. The national-level technology roadmap should be improved as a more systematic processes including planning, progress, and outputs. Finally, this paper suggests some implications and future guidelines for national-level technology roadmaps.

• Journal of Powder Materials
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• v.29 no.2
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• pp.166-175
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• 2022

Ppuri or Root technology primarily includes technologies such as casting, mold, plastic working, welding, heat treatment and surface treatment. It is regarded as an essential element for improving the competitiveness of the quality of final products. This study investigates the current status of smart factory implementation for Ppuri companies and analyzes the influencing relationships among various company factors. The factors affecting smart factory implementation for Ppuri companies are sales, exports, number of technical employees, and holding corporate research institutes. In addition, this research shows that even if smart factory implementation is pursued for data collection, data utilization is not implemented properly. Thus, it is suggested that the implementation of smart factories requires not only the availability of facilities and systems but also proper data utilization.

• Progress in Superconductivity and Cryogenics
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• v.23 no.3
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• pp.5-9
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• 2021

Comprehensive utilization of sulfur-containing iron tailings (SIT) not only solves environmental problems but also creates certain economic value. The iron element from SIT was enriched by the superconducting high gradient magnetic separation (S-HGMS) technology in this study. In the experiments, the total iron content (TFe) was increased from 26.3% to 60.5% with the total sulfur content (TS) of 5.9% under the optimal parameters, i.e., a magnetic flux density of 0.4 T, a slurry flow rate of 1500 mL/min. The high-quality sulfur-containing material with TFe of more than 60% was obtained, which can be used for preparing high-sulfur free cutting steel. The S-HGMS technology can realize the resource utilization of iron tailings with high added value.

• Journal of Distribution Science
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• v.19 no.11
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• pp.5-15
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• 2021

Purpose: The current study aims at knowing and testing factors supporting business and how to distribute it for resilience business in new normal era. Factors Supporting business resilience will be seen in terms of entrepreneurial competence, technology utilization and government support for business resilience through entrepreneurial spirit as an intervening variable. Research design, data, and methodology: A constructed questionnaire in direct survey and interview was conducted with 97 respondents in South Sulawesi. Partial Least Square (PLS) analysis, was utilized to analyze and verify all the data. Results: This study indicated entrepreneurial competence and utilization of technology have a positive and significant effect on entrepreneurial spirit, while government support has no significant effect on entrepreneurial spirit. This study also indicated that entrepreneurial spirit has a significant effect on business resilience. Conclusion: To increase business resilience, it is very important to have entrepreneurial skills and mastery on utilization of technology. To anticipate future crises, entrepreneurial competencies must be evenly distributed both for business owners and for all members of the organization. To institutionalize crisis management in business, it is important for SMEs in Indonesia to develop an institutionalized Business Crisis Management.

• International Commerce and Information Review
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• v.9 no.3
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• pp.181-204
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• 2007

Trade Portal Site(TPS) is one of the innovative skills which makes it possible for small and medium-sized enterprises(SMEs) to manage international trade activities more efficiently by using the newest information and telecommunication technology. Based on performance and an existing research related to using information technology, this research analyzed the user's degree of utilization of TPSs which moderates effects between SMEs characteristics and export performance of SMEs. According to the results of the empirical study on actual data of 194 sample firms by using moderated regression analysis, there are significant only organizational characteristics among determinants(such as organizational characteristics, export characteristics) as the degree of utilization of TPSs. These research results provide many useful insights to the CEOs of SMEs using the services of TPSs, e-Trade system developers, and government policy makers. First, CEOs and managers of SMEs should have thorough understanding of the importance of the new information technology and e-Trade and positively adopt new e-Trade solutions and systems to their export processes to enhance global competitiveness. Second, TPS managers and e-Trade systems developers must concentrate on improving the user's degree of utilization of TPSs. Finally, the government agency should develop the various e-Trade promotion policies to support the efforts of SMEs organizational characteristics and TPS to increase the degree of utilization of TPS, which have positive effects on the export performance of SMEs.

• Journal of Agricultural Extension & Community Development
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• v.28 no.1
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• pp.25-39
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• 2021

This study aims to identify the causation effect between technostress and utilization of Internet information and meditation effect of information service acceptability between technostress and Internet information utilization. The data were collected from 503 woman farmers aged 20 to 65 across the country. The analysis performed a three-stage mediated regression of Bron, & Kenny (1986), using the SPSS 21.0 statistical package. The importance of accepting information services has been identified in the Sobel test. According to the analysis of the medium effect on information service acceptability, information service acceptability has a partial medium effect on the technological stress of woman farmers and the level of Internet information utilization. In order to lower the technology of woman farmers in the future, it is necessary to find ways to improve new perceptions of information technology and increase acceptability of information services.