• 고무기술
• /
• 제22권2호
• /
• pp.119-149
• /
• 2021

Domestic materials & components industry is making a shift from quantitative growth to qualitative growth, while the paradigm of a future society is changing rapidly to energy, mobility, smartification and etc. The main features of materials & components industry are analyzed broadly based on three aspects that are: ① industry Status, ② the value chain structure, ③ the competitiveness. With regard to the national aspect, it is shown that the number of an export and a trade surplus increased consistently after the government advanced the policy on materials & components and Korea's trade deficit with Japan has been decreased. Moreover, the state's export ranking increased from tenth place in 2001 into sixth place in 2017, dedicating to the growth of a national economy. The analysis of the chain value indicates that specifications of an end product are set when the materials & components are combined with manpower, infrastructure and technologies. In terms of the competitiveness, it requires a long time and high costs to develop technologies on materials and it is important for components to have a process innovation and credibility wired. Following the industry structure with priority given on materials, Jeonnam Province accounts for 14.8% of national material production. As a result of analyzing Jeonnam's export competitiveness, it is measured that a serious polarization exists, revealing there are 6 major technology industries by 11 categories for materials & components, Jeonnam has presented 6 major materials & components considering the key industry and the new industry in future to remedy the mentioned problem so far, and plans to knock on the industry development through 10 different strategies.

• 문화기술의 융합
• /
• 제7권2호
• /
• pp.351-357
• /
• 2021

4차 산업혁명의 기술의 패러다임 전환기를 맞이하여 빅데이터 활용방안에 대한 관심이 대두되고 있는 시점에 특히 기업의 무형자산의 비중이 증가함에 따라 특허빅데이터의 활용방안에 대한 관심이 증대되고 있다. 특허 데이터는 정량적인 정보 외에 제목, 초록, 청구항 등의 비정형 텍스트와 인용 및 피인용 관계, 도면, 기술 분류 등 다양한 정보를 포함하고 있어 다양성의 측면에서도 빅데이터로 간주되어 특허 데이터에 대한 체계적인 관리에서부터 처리활용이 중요하다고 판단 된다. 이에 본 연구에서는 혁신특허전략 프레임워크의 체계적인 운영과 함께 기업의 근원적인 경쟁력 강화를 추진하여 강경쟁우위 확보를 추진하고자 특허빅데이터의 활용방안을 A사의 사례를 중심으로 제안하고, 이의 타당성을 검증하고 시사점을 제안하고자 한다. 이를 통해 특허빅데이터의 활용에 대한 인식을 제고하고, 기업의 전사전략, 사업전략, 기능전략과 연계한 특허빅테이터의 활용방안을 제시하고자 한다.

• 한국정보통신학회논문지
• /
• 제25권7호
• /
• pp.877-883
• /
• 2021

인공지능 기술은 제조 로봇, 인공지능 스피커, 로봇 청소기 등 산업 및 스마트홈 분야에서 다양하게 사용되고 있다. 본 논문에서는 RCMS(Real-time Cash Management System)에서 활용하기 위한 인공지능 기반 1:1 챗봇(chatbot) 시스템을 설계 및 구현하였다. 구현한 RCMS 챗봇은 기존 온라인 게시판의 1만 3천 5백여건의 질의응답을 기반으로 연구비 사용, 시스템 사용법 등 9개 영역에 총 210개의 질의시나리오로 구축하였다. 챗봇은 부족한 상담인원 문제를 해소하고, 근무시간 이후에 연구자의 문의에 대응하여 사용자의 만족도를 제고 할 것으로 예상되며, 연구자의 상담문의가 가장 많았던 사용비목에 대한 추천 서비스는 상담건수를 감소시켜 다른 상담문의에 대한 답변의 질적 수준 향상이 기대된다.

• Journal of Korea Trade
• /
• 제25권6호
• /
• pp.57-77
• /
• 2021

Purpose - International strategic alliance has been regarded as a strategic decision made by firms' managerial problems and ensure performance growth. From the perspective of the proactive behavior for changing strategies in a global market, this study aims to identify whether performance feedback influences firms' decisions to pursue strategic alliances. This study examines the effects of performance feedback on performance when firms use strategic alliances. Design/methodology - To analyze the impact of performance feedback on forming an international strategic alliance, this study adopt the concept of performance feedback to develop a research model and our hypotheses. Thus, this study used a two-stage least squares unbalanced panel data analysis with random effects. This study is based on 24,543 observations from Korean manufacturing firms from 2007 to 2016. Findings - The results show that firms pursue the formation of strategic alliances more actively, if their past financial and R&D performance are lower than their aspiration level, based on the result of performance feedback. An in split sample analysis for examining the effect of a firm's technology sophistication based on the OECD's classification, negative innovation performance discrepancy has positive effects on the probability of international alliance in high-tech and medium-high-tech industries. Financial performance also improves when a firm decides to form a strategic alliance based on the results of performance feedback. Originality/value - This research extends recent efforts to better understand the effect of performance feedback on firms' performance when they use strategic alliances. These findings suggest that the CEOs and managers of firms should consider the performance feedback perspective when deciding to pursue a strategic alliance to improve performance. In other words, the decision-makers in a firm must analyze and consider various complex variables inside and outside the firm and expand such subjects of examination to more complex and dynamic factors.

• 한국산업융합학회 논문집
• /
• 제25권6_2호
• /
• pp.1103-1110
• /
• 2022

The old machine tools that have been used for a long time cause both increase in defective rate and decrease in productivity compared to new machines due to wear and failure of their components. In order to improve productivity and quality of machined components through remanufacturing, it is necessary to analyze the wear and failure of major components of old machine tools. In this study, the process for reverse engineering is designed for the remanufacture of planner millers, which belong to a very large machine tool. Also, the suitability of the designed process is verified through the analysis of the selected remanufactured components. In the first step of the process, some major components of the aging planner miller are scanned using a 3D laser scanner. In the next step, reverse engineering is performed using the data obtained through 3D scanning. Finally, wear and failure analysis is performed by comparing the reverse engineering data with the scan data. As a result, this reverse design and wear analysis can complement the insufficient design database and reduce costs in the maintenance of remanufactured products.

• 한국전자거래학회지
• /
• 제26권4호
• /
• pp.15-36
• /
• 2021

국제 항공 시장이 꾸준히 성장함에 따라 항공업계의 경쟁이 더욱 심화되고 있다. 경쟁 우위의 원천을 얻기 위해 서비스의 품질 평가는 필수적이며, 이에 다양한 연구에서 고객 리뷰를 바탕으로 서비스 품질을 측정하는 시도를 지속해 왔다. 그러나 고객 리뷰 데이터를 기반으로 기대와 지각 수준의 차이를 파악하고 전략적 방향을 제시하는 연구는 미흡한 실정이다. 본 연구에서는 항공사 서비스를 대상으로 차원별 중요도를 머신러닝을 통해 측정하고, 차원별 지각 수준을 감성분석을 통해 분석한다. 차원별 중요도와 지각 수준의 결과를 활용하여 항공사별 서비스의 성과를 측정하기 위한 전략 매트릭스를 제시하고, 이를 통해 각 항공사의 품질 분석을 수행한다. 본 연구는 항공사의 고객만족을 결정하는 중요한 요인을 파악하는 동시에, 각 항공사의 현재 서비스 수준을 파악하는 틀을 제시함으로써 서비스 품질 평가의 중요한 도구로 활용될 수 있다.

• 분석과 대안
• /
• 제6권1호
• /
• pp.195-222
• /
• 2022

From the economic development perspective, economic growth should accompany structural improvement in order to meet complex demands from a society. In the context of development economics, economic growth is critically dependent on successful structural advancement. The issue of structural change is also important for advanced economies as the landscape of modern industry is changing fast. Many advanced countries of slow growth are experiencing dawdling changes in industry structure. However, there is no definitive answer to the question of whether there is a causal relationship between structural change and growth. This study empirically assesses the relationship between structural change or 'speed' thereof and economic growth in developed countries of OECD. Rather than looking into the causes of structural changes, this study simply measures structural changes in OECD economies and examines if structural change is really contributing to growth. The reason why this study focuses on advanced countries of OECD is rather obvious; technological innovation and emergence of new industries pressure these countries to restructure their economies to address these new challenges though they are at stages well beyond conventional industrialization. And structural rigidity can always limit growth even in advanced countries. The main results of this study can be summarized as a positive relationship between 'change and growth'. 'Change' in this study refers to changes in the industrial structure based on value-added and was analyzed to have a close positive relationship with economic growth. This result is consistent with arguments of early development economists emphasizing structural upgrade as an indispensable process for growth and development. The result of this study potentially confirms that the main argument of development economics is valid also for advanced economies. One of our results suggests that business/professional services and social services should be main targets for restructuring for advanced economies. The rational may be that rapid convergence of manufacturing and services is a key for structural advancement in the era of new technologies. Obviously, as manufacturing technology and production are standardized, it is difficult to secure international competitiveness through traditional manufacturing alone and the role of R&D, design, logistics, and marketing is becoming more important.

• Journal of Microbiology and Biotechnology
• /
• 제32권11호
• /
• pp.1462-1470
• /
• 2022

Natural antimicrobial substances are needed as alternatives to synthetic antimicrobials to protect against foodborne pathogens. In this study, a bacteriocin-producing bacterium, Bacillus subtilis HD15, was isolated from doenjang, a traditional Korean fermented soybean paste. We sequenced the complete genome of B. subtilis HD15. This genome size was 4,173,431 bp with a G + C content of of 43.58%, 4,305 genes, and 4,222 protein-coding genes with predicted functions, including a subtilosin A gene cluster. The bacteriocin was purified by ammonium sulfate precipitation, Diethylaminoethanol-Sepharose chromatography, and Sephacryl gel filtration, with 12.4-fold purification and 26.2% yield, respectively. The purified protein had a molecular weight of 3.6 kDa. The N-terminal amino acid sequence showed the highest similarity to Bacillus subtilis 168 subtilosin A (78%) but only 68% similarity to B. tequilensis subtilosin proteins, indicating that the antimicrobial substance isolated from B. subtilis HD15 is a novel bacteriocin related to subtilosin A. The purified protein from B. subtilis HD15 exhibited high antimicrobial activity against Listeria monocytogenes and Bacillus cereus. It showed stable activity in the range 0-70℃ and pH 2-10 and was completely inhibited by protease, proteinase K, and pronase E treatment, suggesting that it is a proteinaceous substance. These findings support the potential industrial applications of the novel bacteriocin purified from B. subtilis HD15.

• Human Ecology Research
• /
• 제60권4호
• /
• pp.609-623
• /
• 2022

As human life and welfare become more valued in the Fourth Industrial Revolution era, the role and mission of human ecology are expanding. Therefore, a career exploration and education program for high school students covering all the academic fields of human ecology may be necessary. To investigate what would be needed to develop such a program, a focus group interview (FGI) targeting experts within the same field and a survey targeting high school students were conducted. As a result of the FGI, a total of 3 categories and 7 subcategories were identified. The three categories included "human ecology and high school education," "human ecology and career choices," and "education program development and management in human ecology." The results of the high schoolers' survey showed that they had a moderate level of awareness about careers related to human ecology majors, but their interests and known information about human ecology programs in universities were low. Within the sub-content of each major, the contents with the highest educational needs were fashion product management, nutrition by disease, housing market analysis, personal financial management, and children's rights and welfare. If a career exploration and education program is implemented in the future, the most preferred type is a mentoring program by professors, students, and graduates in the field of human ecology. In conclusion, it is necessary to develop and implement an integrative education program about human ecology majors based on the educational needs of high school students.