• Carbon letters
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• v.25
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• pp.95-102
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• 2018

We examined the pressure effects on petroleum pitch synthesis by using open and closed reaction systems. The pressure effects that occur during the pitch synthesis were investigated in three pressure systems: a closed system of high pressure and two open systems under either an atmosphere or vacuum. A thermal reaction in the closed system led to the high product yield of a pitch by suppressing the release of light components in pyrolysis fuel oil. Atmospheric treatment mainly enhanced the polymerization degree of the pitch via condensation and a polymerization reaction. Vacuum treatment results in a softening point increase due to the removal of components with low molecular weights. To utilize such characteristic effects of system pressure during pitch preparations, we proposed a method for synthesizing cost-competitive pitch precursors for carbon materials. The first step is to increase product yield by using a closed system; the second step is to increase the degree of polymerization toward the desired molecular distribution, followed by the use of vacuum treatment to adjust softening points. Thus, we obtained an experimental quinoline insolubles-free pitch of product yield over 45% with softening points of approximately $130^{\circ}C$. The proposed method shows the possibility to prepare cost-competitive pitch precursors for carbon materials by enhancing product yield and other properties.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.4
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• pp.663-671
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• 2017

This study analyzed the determinants influencing competitiveness of artificial intelligence industry of Korea. Analysis showed that the factors having the greatest influence on the national competitiveness of the artificial intelligence industry were, in decreasing order of importance, R&D, capital, and ICT competitiveness. Given the capital-intensive characteristic of the artificial intelligence technology, it is important to enhance the national R&D capacity in artificial intelligence technology and ICT, and to make substantial investments in the establishment of related infrastructure. Considering that the development and utilization of ICT infrastructure serves as the basis for artificial intelligence technology, the high standards of Korean consumers are expected to have a positive catalytic effect on the acquisition of national competitiveness for the artificial intelligence industry. For companies to respond in a timely manner to the rapid dissemination and high impact of artificial intelligence technology, they must prepare for such advancements by improving their competencies.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.54 no.6
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• pp.912-917
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• 2021

We investigated the distribution, molecular characteristics, and antimicrobial resistance of Vibrio vulnificus isolated from seawater at Gadeok Island, the Republic of Korea between June to October. Interestingly no isolates were detected between December to February. The detection rate of V. vulnificus was high (80-100%) from July to September 2019 and from June to September 2020. This coincided with the relatively low salinity of the seawater, which ranged from 7.8-29.9 practical salinity units for that period. Additionally, V. vulnificus had a high detection rate at sampling stations near the Nakdong river. The detection rates of virulence genes, such as vvhA, viuB, and vcgC, among the isolates were 97.1%, 44.1%, and 57.4% in 2019 and 100%, 43.0%, and 50.0% in 2020, respectively. Notably, viuB and vcgC were detected in V. vulnificus isolated between June to October when water temperature was above 20℃. The antimicrobial susceptibility analysis of 80 isolates revealed that most of the strains were susceptible to most antimicrobial agents. However, some isolates showed intermediate resistance to cefepime (18.8%), cefoxitin (58.8%), and erythromycin (22.5%). Of note, 3.8% of the tested strains were resistant to cefoxitin. The minimum inhibitory concentration of highly cefoxitin-resistant strains was determined to be less than 32 ㎍/mL.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.55 no.2
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• pp.121-128
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• 2022

The aims of this study were to optimize the processing procedure of high-quality semi-alternating temperature dried Israeli carp Cyprinus carpio (SAD-IC) and to investigate the sensory properties of the product. Based on the differences in moisture content of the dorsal and ventral muscles, high quality SAD-IC was prepared by alternating the drying temperature between 4 h at 35℃, and 2 h at 5℃, three times before final drying for 2 h at 35℃. The surface in SAD-IC produced under the optimal alternating-temperature drying process had a markedly superior browning index value and softer texture compared to products produced using constant-temperature drying. SAD-IC produced from dorsal and ventral muscle had significantly superior taste values than the raw material. These results suggest that SAD-IC has the potential to be industrialized.

• The Journal of the Convergence on Culture Technology
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• v.9 no.1
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• pp.627-633
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• 2023

This study sought to identify the effects of entrepreneurship orientation and self efficacy on entrepreneurial intentions among workers in the bio-healthcare industry in Korea. As interest in health increases in the age of aging, the bio-healthcare industry is attracting a lot of attention for start-ups as an industry that can create high added value, but there are also aspects that take a relatively long time to develop technology, require a lot of money, and have a relatively high probability of failure. In this study, we measured the level of entrepreneurship orientation and self efficacy of bio-healthcare industry workers and identified the degree of influence on entrepreneurial intentions. Studies have shown that innovativeness, progressiveness, and risk-taking among entrepreneurship orientations all have a significant impact on entrepreneurial intention. In addition, self efficacy has been shown to have a mediating effect on the relationship between innovativeness, progressiveness, risk-taking and entrepreneurial intention.

• Journal of the Korean Institute of Oriental Medical Informatics
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• v.13 no.1
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• pp.1-13
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• 2007

Korean medicine industry general means all industry activities related to Korean medicine. It covers material resources such as herbs and products made herbs, medical instruments, Korean medical servics and related information service based on Korean medicine theories. Also according to industrial strategy, Korean medicine industry was to define and branch. The industrial strategy of Korean medicine industry was based on kowledge, high-end, intensive techology, and global denand. By the industrial strategy of Korean Medicine industry, a study on the optimal industry construction of Korean medicine industry was standardizaition in the basic research and promoted bouds, efficiency in the group industrial, detention of global fund and global technology, and intenational division of product process. It is the optimal industry construction of Korean medicine industry by the industrial strategy of Korean medicine industry. At once adjustment to the optimal industry construction of Korean medicine industry by the industrial strategy of Korean medicine industry was internationalization in the positive adjustment.

• Electronics and Telecommunications Trends
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• v.35 no.5
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• pp.92-101
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• 2020

Artificial intelligence (AI) has become the hottest topic in information and communications technology (ICT) in recent years. Along with the advancement of AI technology, technologies such as big data, cloud, and high-speed wired and wireless communication are being applied to existing media areas in earnest, affecting all parts of the media value chain from content production to consumption. AI technology is now spreading across the media industry faster than any other industry. In the future, the gap between those with and without AI technology will widen, further deepening the polarization of the media ecosystem. Media intelligence, which combines media and AI technologies, is now perceived as essential, not optional. In this paper, we examine the current status of technology development and standardization by major domestic and foreign institutions on how AI is being utilized in the media industry. In addition, we discuss what technology should be developed to lead media intelligence.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.8B
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• pp.1217-1223
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• 2010

Recently a technology paradigm of ship has been changed to digital ship, IT shipbuilding convergenced technology development and Human training is very important, that is important role of making high valued shipbuilding industrial development. In this paper, we introduce IT shipbuilding convergenced education program for training human of special skill. A course of study is made of analyzing a survey of IT shipbuilding convergenced core technology in shipbuilding industry. we surveyed marine wireless communication technology, S/W solution for vessel, and CAN & SAN technology in IT filed, and ship-building design and vessel construction technology in shipbuilding field. we put in industry specialist in our education program because we have a gole of training the person are adapted immediately in shipbuilding industry.

• Knowledge Management Research
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• v.20 no.2
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• pp.197-216
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• 2019

The Korean government has been focusing on supporting technology startups to solve social and economic problems such as low growth, declining economic growth rate, rising youth unemployment rate and lack of new growth engine. Although the failure rate of young technology startups is very high, relevant researches are still scant. On the basis of previous researches, this study has identified four growth factors of technology startups: characteristics of entrepreneurs, technical superiority and originality of business items, focused marketing strategy, and follow-up government support projects. Five young technology startup cases were selected and analyzed in the cosmetics industry which were supported by the Six-month Challenge Platform project of Chungbuk Creation Economic Innovation Center. The main findings of the case study were as follows: First, product development through inhouse R&D rather than external contracted R&D was beneficial to acquiring follow-up government support projects and external investment. Second, choosing a small niche market and concentrating marketing efforts on the target market had a positive effect on firm performance. And, third, relevance of entrepreneurs' college major and technological originality of business items were confirmed to influence firm performance positively in the early stage. The results are expected to help young technology startups survive successfully and establish a foothold for growth in their early stage.

• KSBB Journal
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• v.23 no.5
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• pp.362-368
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• 2008

High Hydrostatic Pressure assisted (HHP) process enhancement for food and allied industries are reported in this paper review. Recently, considerable research has been devoted to the improvement of mild thermal processing techniques and to the development of alternative mild processing technologies. HHP assisted can enhance existing extraction, processes and enable new commercial extraction opportunities and processes. New HHP processing approaches have been proposed, including, the potential for modification of plant cell material to provide improved bioavailability of micro nutrients while retaining the natural-like quality, simultaneous extraction. Therefore, High Hydrostatic Pressure assisted (HHP) technologies could have a strong presence in the future of the biotechnology industry.