• Title/Summary/Keyword: 투자정책

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Design and Implementation of Modbus Communications for Smart Factory PLC Data Collection (스마트팩토리 PLC 데이터 수집을 위한 Modbus 통신 설계 및 구현)

  • Han, Jin-Seok;Yoo, Jae-Soo
    • The Journal of the Korea Contents Association
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    • v.21 no.4
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    • pp.77-87
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    • 2021
  • Smart Factory refers to a factory that can be controlled by itself with an intelligent factory that improves productivity, quality and customer satisfaction by combining the entire process of manufacturing and production with digital automation solutions. The manufacturing industry around the world is rapidly changing, with Germany, Europe, and the United States at the center. In order to cope with such changes, the Korean government is also implementing a policy to spread the supply of smart factories for small and medium-sized companies, and related ministries and agencies such as the Ministry of Commerce, Industry and Energy, the Ministry of SMEs and Venture Business, the Korea Institute of Technology and Information Promotion, and local technoparks, as well as large companies such as Samsung, SK and LG are actively investing in smart manufacturing projects to support smart factories[1]. Factory Automation (FA) construction has many issues regarding the connection of heterogeneous equipment. The most difficult aspect of configuring various communications from various equipment is the reason. Although it may not be known if there are standards or products made up of the same company, it is not easy to build equipment that is old, up-to-date, and different use environments through a series of communications. To solve this problem, we would like to propose a method of communication using Modbus, one of FieldBus, which is one of the many industrial devices of PLC, a representative facility control system, and is used as a communication standard.

A Comparative Study on the Export Similarity Index (ESI) and Trade Competitiveness Index (TCI) of Korean Construction Machinery with China and the U.S.A (한국 건설기계의 수출유사성지수(ESI) 및 무역경쟁력지수(TCI) 연구 - 중국 및 미국과의 비교 분석을 중심으로 -)

  • Lee, Gyuseong;Li, Xiang;Shim, Sangryul
    • Korean Journal of Construction Engineering and Management
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    • v.23 no.2
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    • pp.16-23
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    • 2022
  • This study examined the trend of international competitiveness over the past 10 years (2011-2020), focusing on comparative analysis with China and the United States, targeting seven major export items of Korean construction machinery based on 6 units of HS code. To this end, the export similarity index and trade competitiveness index were calculated and analyzed using UN Comtrade and Korea International Trade Association trade statistics. As a result of the analysis, competition between Korea and China has intensified over the past decade, and competition with the United States has remained at a certain level. Korean forklifts (8427.20) are exporting to the world with strong competitiveness in the global market. Excavators (8429.52) and loaders (8429.51), which have the largest export share of Korean construction machinery, have a weight advantage, but they are exporting due to price inferiority. The rest of the items were found to be inferior in price and weight, and were not competitive in the global market. These analysis results suggest the following implications. First, it is necessary to strengthen efforts to expand exports of universal construction machinery items, which are expected to increase in demand in the future, by boosting the economy and expanding infrastructure investment in accordance with eco-friendly policies. Second, excavators, which have been shown to have a quality advantage and a price competitive advantage, need to further strengthen export marketing activities not only in China and the United States but also in emerging developing countries.

The Study on Factors to Improve the Intention to Share Knowledge Using KMS: Focusing on Technology Acceptance Model, Task Stress, Knowledge Share Climate (지식관리시스템을 활용한 지식공유 의도 향상에 대한 연구: 기술수용모델, 업무 스트레스, 공유 분위기를 중심으로)

  • Hwang, Inho
    • Journal of Korea Society of Industrial Information Systems
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    • v.26 no.6
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    • pp.17-34
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    • 2021
  • As knowledge management is recognized as an important factor for organizational performance, organizations are increasing their investment in knowledge management policies and technologies. The purpose of this study is to suggest positive and negative causes on the intention to share knowledge through a using knowledge management system(KMS) and to suggest the effect of organizational sharing climate. Research models and hypotheses were presented through previous studies, and 417 samples were obtained through the survey for employees of organizations that adopted a KMS. As a result of the analysis, usefulness and ease of use of the KMS had a positive effect on the intention to share knowledge, and task conflict and ambiguity had a negative effect. The knowledge sharing climate was found to be an antecedent for the technology acceptance model and task stress. In addition, task stress moderated the effect of usefulness and ease of use with the intention to share knowledge using KMS. The results suggested the direction to be pursued at the organizational level for the continuous use of KMS.

A Study on Improvements of Incheon International Passenger Port Management System (인천항 국제여객부두 관리체계 개선에 관한 연구)

  • Lee, Kyong-Han;Lee, Jong-Phil;Go, Dong-Hun
    • Journal of Korea Port Economic Association
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    • v.37 no.3
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    • pp.35-53
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    • 2021
  • Over the past 20 years, Korea's number of international passengers and freight transportation records has increased by 8.6% per year, respectively. However, despite the development of sea lanes and increased voyages, there have been constant calls for improving the inefficient management of international passenger ports. Hence, this paper presents improvements and further directions for international passenger port management. Focusing on the Incheon International passenger port as a representative case study, the main results show that the most important, urgent, possible measures for improving the port management include (i) the expansion of customs personnel and implementation of a 24-hours customs clearance system in operation, (ii) installation of buffer facilities between the ferry and ferry cargo and establishment of hinterland specialized in car ferry freight in a facility, and (iii) clear standards for cost-bearing subjects and limitation of high cost related to terminal use in institution. These results imply the need for government policy access and investment reflecting stakeholder opinions at various levels, such as operation, facilities, institution, and so forth, for efficient management of international passenger ports.

Effects of Empowerment of Social Service Workers on Service Orientation: Focusing on the Mediating Effect of Job-esteem Attitude (사회서비스 종사자의 임파워먼트가 서비스지향성에 미치는 영향: 직업존중감의 매개효과를 중심으로)

  • Na, Yunjoung;Hwang, Hyewon
    • The Journal of the Korea Contents Association
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    • v.22 no.9
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    • pp.544-560
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    • 2022
  • In order to verify the effect of job-esteem attitude on the empowerment of social service workers on service orientation, this study conducted a questionnaire survey on manpower providing local autonomous social service investment projects in Chungcheongbuk-do through analyzing 329 copies of data. The main research results show that, work performance relationship and personal work orientation have a significant effect on job esteem among the sub-factors of empowerment, it was found that the work environment control had a significant effect on all of the service-oriented sub-factors (trust-oriented, sincerity-oriented, and type-oriented). In addition, personal work-oriented empowerment was found to have a significant effect on sincerity-oriented and type-oriented among the service-oriented sub-factors, and it was confirmed that the empowerment of social service workers had a positive effect on service orientation through employee appreciation as a medium. It was confirmed that job-esteem, which is a mediator, affects sincerity and type orientation, which are sub-variables of service orientation. In order to improve the service orientation of social service workers, it is necessary to develop a manual for a clear understanding of their work and to provide continuous and practical maintenance education so workers can develop their own abilities.

A Study on Methods for Korean Colleges to Participate in Higher Vocational Education Area of Official Development Assistance (국내 전문대학의 고등직업교육 분야 공적개발원조(Official Development Assistance) 참여방안에 관한 연구)

  • Lee, Tae-Jung;Yun, Woo-Young
    • Journal of Digital Convergence
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    • v.19 no.5
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    • pp.47-55
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    • 2021
  • Firstly, our Technical and Vocational Education and Training(TVET) ODA currently uses 70% of its budget on short-term assistance project works without much consideration for continuity from one project to another. Secondly, TVET ODA budget is much too concentrated on hardware support, lowering impact compared to the amount invested. Lastly, there is a lack of research on the needs of recipient nation which leads to lowering effectiveness of TVET ODA. This Study analyzed the characteristics of Korea's TVET ODA through the statistical data analysis of ODA. This study's main focus is to recommend methods for Korean colleges to overcome tendencies and limitations of TVET within Korea's ODA. Colleges have advantages in training students to fit needs of the market and companies based on decades of experience colleges have on academic-industrial collaboration. Colleges can also transfer qualification verification systems to fit the recipient country and dispatch TVET related personnel to strengthen software support. Additionally, the post project evaluation and post job placement management capabilities of colleges can be actively used for post management of TVET projects. I hope that through this study, ways to increase participation of colleges in TVET ODA can be discussed in more variety.

The effects of UIC Cooperation Programs on Youth Employment (정부 산학연협력 지원의 고용효과 분석)

  • Kim, Sunwoo;Yoon, Yoon-Gyu
    • Korean small business review
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    • v.42 no.2
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    • pp.179-193
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    • 2020
  • In the rapid trend of social change, such as the 4th industrial revolution and the realignment of job structures, university-industry cooperation(UIC) is emphasized as a key factor in enhancing national competitiveness. The level of UIC in Korea is insufficient compared to national competitiveness, and despite the world-class R&D investment, there is a lack of linkage between the result of technology development and the industrial field, and the knowledge-transfer between university and industry is also insufficient. This paper analyzed the employment effects of UIC program supported by government, especially youth employment effects. The companies participating in the UIC program showed higher employment effect than the non-participating companies. In addition, the result of examining the employment growth rate of participating companies only for projects aimed at 'education and human resource development', show that employment growth rate after one year (total, youth employment) was significantly higher than that of non-participating companies, while employment growth after two years was not significant. UIC program need to have sustainability and systemicity so that they can be directly linked to the employment effects.

Discovering Essential AI-based Manufacturing Policy Issues for Competitive Reinforcement of Small and Medium Manufacturing Enterprises (중소 제조기업의 경쟁력 강화를 위한 제조AI 핵심 정책과제 도출에 관한 연구)

  • Kim, Il Jung;Kim, Woo Soon;Kim, Joon Young;Chae, Hee Su;Woo, Ji Yeong;Do, Kyung Min;Lim, Sung Hoon;Shin, Min Soo;Lee, Ji Eun;Kim, Heung Nam
    • Journal of Korean Society for Quality Management
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    • v.50 no.4
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    • pp.647-664
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    • 2022
  • Purpose: The purpose of this study is to derive major policies that domestic small and medium-sized manufacturing companies should consider to maximize productivity and quality improvement by utilizing manufacturing data and AI, and to find priorities and implications. Methods: In this study, domestic and international issues and literature review by country were conducted to derive major considerations such as manufacturing AI technology, manufacturing AI talent, manufacturing AI data and manufacturing AI ecosystem. Additionally, the questionnaire survey targeting 46 experts of manufacturing data and AI industry were conducted. Finally, the major considerations and detailed factors importance were derived by applying the Analytic Hierarchy Process (AHP). Results: As a result of the study, it was found that 'manufacturing AI technology', 'manufacturing AI talent', 'manufacturing AI data', and 'manufacturing AI ecosystem' exist as key considerations for domestic manufacturing AI. After empirical analysis, the importance of the four key considerations was found to be 'manufacturing AI ecosystem (0.272)', 'manufacturing AI data (0.265)', 'manufacturing AI technology (0.233)', and 'manufacturing AI talent (0.230)'. The importance of the derived four viewpoints is maintained at a similar level. In addition, looking at the detailed variables with the highest importance for each of the four perspectives, 'Best Practice', 'manufacturing data quality management regime, 'manufacturing data collection infrastructure', and 'manufacturing AI manpower level of solution providers' were found. Conclusion: For the sustainable growth of the domestic manufacturing AI ecosystem, it should be possible to develop and promote manufacturing AI policies in a balanced way by considering all four derived viewpoints. This paper is expected to be used as an effective guideline when developing policies for upgrading manufacturing through domestic manufacturing data and AI in the future.

A Comparative Study on the Determinants of Bid Price Ratio Apartments and Factories in the Seoul Metropolitan Area (수도권 아파트와 공장 경매낙찰가율 결정요인에 관한 비교 연구)

  • Shin, Chang-gook;Chun, hae-jung
    • Journal of Digital Convergence
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    • v.19 no.11
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    • pp.255-266
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    • 2021
  • Investment demand for factory facilities has increased due to the balloon effect caused by housing price regulation. This study investigated the impact of the real estate market and macroeconomic factors on the bid price ratio of apartment auctions and factory auctions, focusing on the metropolitan area. To this end, we reviewed theories and previous studies on real estate auctions, and examined how macroeconomic variables affect bid price ratio of apartments and factories using the panel vector autoregressive model. It was found that the increase in the apartment bid price ratio increases as the participation in apartment auctions increases. However, as the factory bid price ratio increases, the factory bid price ratio does not increase, it was confirmed that the positive (+) relationship between the successful bid price ratio and the bid price ratioe does not exist, unlike previous studies. Based on the analysis results, it is suggested that the real estate market and macroeconomic factors should be considered for the stable operation of the related relevant auction system. This study has limitations in that it is limited to the metropolitan area. In the future, research that expands the scope of research to the whole country and provinces should be conducted.

Effective Capacity Planning of Capital Market IT System: Reflecting Sentiment Index (자본시장 IT시스템 효율적 용량계획 모델: 심리지수 활용을 중심으로)

  • Lee, Kukhyung;Kim, Miyea;Park, Jaeyoung;Kim, Beomsoo
    • Knowledge Management Research
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    • v.23 no.1
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    • pp.89-109
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    • 2022
  • Due to COVID-19 and soaring participation of individual investors, large-scale transactions exceeding system capacity limits have been reported frequently in the capital market. The capital market IT systems, which the impact of system failure is very critical, have encountered unexpectedly tremendous transactions in 2020, resulting in a sharp increase in system failures. Despite the fact that many companies maintained large-scale system capacity planning policies, recent transaction influx suggests that a new approach to capacity planning is required. Therefore, this study developed capital market IT system capacity planning models using machine learning techniques and analyzed those performances. In addition, the performance of the best proposed model was improved by using sentiment index that can promptly reflect the behavior of investors. The model uses empirical data including the COVID-19 period, and has high performance and stability that can be used in practice. In practical significance, this study maximizes the cost-efficiency of a company, but also presents optimal parameters in consideration of the practical constraints involved in changing the system. Additionally, by proving that the sentiment index can be used as a major variable in system capacity planning, it shows that the sentiment index can be actively used for various other forecasting demands.