• Title/Summary/Keyword: Technical Trend Analysis

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A Research on Industrial Trend Analysis of Materials & Components in Jeollanam-do

  • Jeong, Jung-Chae;Kim, Eun-Lee;Kim, Seong-Min;Park, Seong-Hyeon;Lee, Yong-Sang
    • Rubber Technology
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    • v.22 no.2
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    • pp.119-149
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    • 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.

Dynamic Behavior Analysis of PSC Train Bridge Friction Bearings for Considering Next-generation High-speed Train (차세대 고속철의 증속을 고려한 PSC 철도교 마찰 교량받침의 동적 거동 해석)

  • Soon-Taek Oh;Seong-Tae Yi
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.27 no.6
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    • pp.39-46
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    • 2023
  • In this study, the dynamic behavior of friction bearings of PSC (Pre-Stressed Concrete) box train continuous bridge was numerically analyzed at 10 km/h intervals up to 600 km/h according to the increasing speed of the next-generation high-speed train. A frame model was generated targeting the 40-meter single-span and two-span continuous PSC box bridges in the Gyeongbu High-Speed Railway section. The interaction forces including the inertial mass vehicle model with 38 degrees of freedom and the irregularities of the bridge and track were considered. It was calculated the longitudinal displacement, cumulative sliding distance and displacement speed of the bridge bearings at each running speed so that compared with the dynamic behavior trend analysis of the bridge. In addition, long-term friction test standards were applied to evaluate the durability of friction plates.

Directions for Policy to the Fourth Industrial Revolution based on Hyper-Connected Society and Smart Technology (초연결사회와 스마트기술에 따른 4차산업혁명의 정책방향)

  • Eun-Yeol Oh;Jun-Ok Shin
    • Journal of Industrial Convergence
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    • v.21 no.12
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    • pp.45-54
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    • 2023
  • This study aims to examine trends so far and proactively seek future policy directions because the degree of implementation of hyper-connected society and smart technology at home and abroad cannot be overlooked at present in Korea. The method of the study focused on differentiating it from this study through literature research and comparison of major previous studies. As a result of the study, data security and maintenance, enhanced privacy of users and users, and related policy directions for entering a super-aged society were identified in the era of the 4th industrial revolution in Korea according to hyper-connected society and smart technology. Research limitations were difficulties in obtaining data and technical limitations in statistical quantification through trend analysis, although research analysis should be approached through quantitative and quantitative methods. It needs to be supplemented in future studies.

Research Trend Analysis of Risk Cost Model for UAM Flight Path Planning (UAM 비행 경로 계획을 위한 위험 비용 모델 연구 동향 분석)

  • Jae-Hyeon Kim;Dong-Min Lee;Myeong-Jin Lee;Yeong-Hoon Choi;Ji-Hun Kwon;Jong-Whoa Na
    • Journal of Advanced Navigation Technology
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    • v.28 no.1
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    • pp.68-76
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    • 2024
  • With the recent rapid growth of the domestic and international unmanned aerial vehicle (UAV) market and the increasing importance of UAV operations in urban centers, such as UAMs, the safety management and regulatory framework for human life and property damage caused by UAV failures has been emphasized. In this study, we conducted a comparative analysis of risk-cost models that evaluate the risk of an operating area for safe UAM flight path planning, and identified the main limitations of each model to derive considerations for future model development. By providing a basic model for improving the safety of UAM operations, this study is expected to make an important contribution to technical improvements and policy decisions in the field of UAM flight path planning.

A Study on Recent Research Trend in Management of Technology Using Keywords Network Analysis (키워드 네트워크 분석을 통해 살펴본 기술경영의 최근 연구동향)

  • Kho, Jaechang;Cho, Kuentae;Cho, Yoonho
    • Journal of Intelligence and Information Systems
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    • v.19 no.2
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    • pp.101-123
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    • 2013
  • Recently due to the advancements of science and information technology, the socio-economic business areas are changing from the industrial economy to a knowledge economy. Furthermore, companies need to do creation of new value through continuous innovation, development of core competencies and technologies, and technological convergence. Therefore, the identification of major trends in technology research and the interdisciplinary knowledge-based prediction of integrated technologies and promising techniques are required for firms to gain and sustain competitive advantage and future growth engines. The aim of this paper is to understand the recent research trend in management of technology (MOT) and to foresee promising technologies with deep knowledge for both technology and business. Furthermore, this study intends to give a clear way to find new technical value for constant innovation and to capture core technology and technology convergence. Bibliometrics is a metrical analysis to understand literature's characteristics. Traditional bibliometrics has its limitation not to understand relationship between trend in technology management and technology itself, since it focuses on quantitative indices such as quotation frequency. To overcome this issue, the network focused bibliometrics has been used instead of traditional one. The network focused bibliometrics mainly uses "Co-citation" and "Co-word" analysis. In this study, a keywords network analysis, one of social network analysis, is performed to analyze recent research trend in MOT. For the analysis, we collected keywords from research papers published in international journals related MOT between 2002 and 2011, constructed a keyword network, and then conducted the keywords network analysis. Over the past 40 years, the studies in social network have attempted to understand the social interactions through the network structure represented by connection patterns. In other words, social network analysis has been used to explain the structures and behaviors of various social formations such as teams, organizations, and industries. In general, the social network analysis uses data as a form of matrix. In our context, the matrix depicts the relations between rows as papers and columns as keywords, where the relations are represented as binary. Even though there are no direct relations between papers who have been published, the relations between papers can be derived artificially as in the paper-keyword matrix, in which each cell has 1 for including or 0 for not including. For example, a keywords network can be configured in a way to connect the papers which have included one or more same keywords. After constructing a keywords network, we analyzed frequency of keywords, structural characteristics of keywords network, preferential attachment and growth of new keywords, component, and centrality. The results of this study are as follows. First, a paper has 4.574 keywords on the average. 90% of keywords were used three or less times for past 10 years and about 75% of keywords appeared only one time. Second, the keyword network in MOT is a small world network and a scale free network in which a small number of keywords have a tendency to become a monopoly. Third, the gap between the rich (with more edges) and the poor (with fewer edges) in the network is getting bigger as time goes on. Fourth, most of newly entering keywords become poor nodes within about 2~3 years. Finally, keywords with high degree centrality, betweenness centrality, and closeness centrality are "Innovation," "R&D," "Patent," "Forecast," "Technology transfer," "Technology," and "SME". The results of analysis will help researchers identify major trends in MOT research and then seek a new research topic. We hope that the result of the analysis will help researchers of MOT identify major trends in technology research, and utilize as useful reference information when they seek consilience with other fields of study and select a new research topic.

Trend Analysis of North Korean Forest Science Research (1962-2016) by Data Mining (데이터 마이닝을 활용한 북한 산림과학 연구 동향 분석(1962~2016))

  • Lim, Joongbin;Kim, Kyoung-Min;Kim, Myung-Kil;Yi, Jong Min;Park, Jin Woo
    • Journal of Korean Society of Forest Science
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    • v.109 no.1
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    • pp.81-98
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    • 2020
  • In this study, forest-related research papers published in North Korean journals were analyzed to understand the research trends in North Korean forest science. The Korea Science and Technology Information Institute (KISTI) North Korea Science and Technology Network (NKtech) is constructing a database related to science and technology in North Korea. From this, a total of 1,389 articles published from 1962 to 2016 were collected with forest science key words based on the South Korean National Science and Technology Standard Classification System. The topics were divided into four categories: afforestation, forest protection, forest use, and forest management. In the field of afforestation, research activities on nursery and agroforestry were active, and the survival rate was emphasized. In the forest protection field, there was a significant research effort into forest pests, and efforts were being made to reduce soil erosion through agroforestry. In the field of forest use, research activities on pulp/paper and mushrooms were active. In the forest management field, activities related to "ecological information" were conspicuous, and efforts were being made to reduce carbon. These results suggest that the perspective of North Korean forest research has changed from nature reorganization to nature protection. Thus, a comparative study on forest science and technology in each sub-sector of the forest research field, along with analysis of the relationship between policy direction and research direction of North Korea over time, would be worthwhile future investigations. To overcome the problem of technical terminology, a compilation/dictionary of inter-Korean forestry terminology would be useful for effective communication between the two Koreas.

Trend Evaluation of Self-sustaining, High-efficiency Corrosion Control Technology for Large-scale Pipelines Delivering Natural Gas by Analyzing Patent Data (특허데이터 분석을 통한 천연가스 공급용 대규모 파이프라인을 위한 자립형 고효율 부식 방지 기술의 동향평가)

  • Lee, Jong-Won;Ji, Sanghoon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.12
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    • pp.730-736
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    • 2019
  • The demand for natural gas, which is considered an environmentally friendly energy source, is increasing, and at the same time, the market share of large pipelines for natural gas supply is increasing continuously. On the other hand, the corrosion of such large pipelines reduces the efficiency of natural gas transportation. Therefore, this study aims to establish a strategy for securing the patent rights of related technologies through quantitative analysis of patents on energy-independent high-efficiency corrosion prevention technology for large-scale pipelines for natural gas supply. In this patent technology trend study, Korean, US, Japanese, and European patents filed, published, and registered by June 2018 were analyzed, and a technical classification system and classification criteria were prepared through expert discussion. To use fuel cells as an external power source to prevent the corrosion of natural gas large-scale pipelines, it is believed that rights can be claimed using an energy control system and methods having 1) branch structures of pipeline and facility designs (decompressor/compressor/heat exchanger) and 2) decompression/preheating and pressurization/cooling technology of high pressure natural gas.

The analysis of The Korean Journal of Institute of Industrial Educations (대한공업교육학회지 연구 동향 분석)

  • Lim, Nhayoung;Lee, Chang-Hoon
    • 대한공업교육학회지
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    • v.44 no.2
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    • pp.47-64
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    • 2019
  • The purpose of this study is to analyze the research trends of the The Korean Journal of Institute of Industrial Educations and present the development directions of the The Korean Journal of Institute of Industrial Educations. In order to achieve the purpose of the study, in this study compared and analyzed 158 articles which have been published from the 36 edition to 44 edition of The Korean Journal of Institute of Industrial Educations, the central part in Industrial Educations, to understand the research trend of the Korean Journal of Institute of Industrial Educations. When it comes to the result from the conclusion, firstly The Korean Journal of Institute of Industrial Educations has steadily published a sort of the article twice a year. Secondly, in The Korean Journal of Institute of Industrial Educations, the articles of vocational industrial education are published more than the other kind of the article such as technology education and the rest of education Third, key words of the Korean Journal of Institute of Industrial Educations the word Specialized Technical High School came out the most, followed the word NCS(National Competency Standards). Fourth, the research methods which are used for the study of Industrial Educations are Survey Study, Literature investigation, Contents Analysis, development research but Case Study has been used rarely. Fifth, most of the researches have been conducted by co-research which especially belongs to the university more than one researcher.

Trend on the Recycling Technologies for Waste Magnesium by the Patent and Paper Analysis (특허(特許)와 논문(論文)으로 본 폐(廢)마그네슘 재활용(再活用) 기술(技術) 동향(動向))

  • Moon, Byoung-Gi;You, Bong-Sun;Cho, Young-Ju;Cho, Bong-Gyoo
    • Resources Recycling
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    • v.22 no.3
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    • pp.73-80
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    • 2013
  • Metal prices are rapidly rising due to increasing demand of metals and limited available resources according to the industrial requirement. As a result, securing a stable supply of these metal resources has been recognized as a core element of national competitiveness and sustained economic growth. In the case of magnesium and its alloys which are entirely depending on import, low-grade magnesium scraps from end-of-life vehicles and 3C(Camera, Computer, Communication) parts and magnesium wastes such as sludge and dross generated during melting process are hardly recycled. Accordingly, the development and commercialization of recycling technology of low-grade magnesium scrap is desperately needed to improve efficiency of resource circulation and to establish the required proprietary of resource metal supply and demand. In this study, papers and patents on recycling technologies of waste magnesium were analyzed. The range of search was limited in the open patents of USA (US), European Union (EP), Japan (JP), Korea (KR) and SCI journals from 1974 to 2012. Patents and journals were collected using key-words searching and filtered by filtering criteria. The trends of the patents and journals was analyzed by the years, countries, companies, and technologies.

Trends of Technology Development through Investigation and Analysis of Domestic Patent Related to Wastewater Treatment Technology including Membrane, Sludge Treatment and Advanced Treatment Technology and Equipment (분리막 및 슬러지 처리와 고도처리 기술·장비를 포함한 하·폐수 처리기술의 특허 조사·분석을 통한 기술개발 동향)

  • Yoo, Ho Sik;Kim, Ji Tae
    • Membrane Journal
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    • v.27 no.5
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    • pp.375-388
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    • 2017
  • Wastewater treatment (WWT) technology has been developing from simple pollutant treatment to energy and resource-saving advanced technology, and various technologies combined with IT and BT are developed to minimize the amount of pollutant and toxic substance discharge to the public water areas and to improve operational efficiency. To examine the development trend of domestic wastewater treatment technology, the registered patent technologies were surveyed, classified and analyzed by year and sector. This paper considers the status of patent registration related to WWT from 2010.1 to 2017.5 in terms of the number of specific technical areas, and the trends are analyzed based on the 10 categorization field such as biological and physicochemical treatment process, equipment and device, material, sludge treatment, membrane, process control and 42 specific technical areas. A total of 3,356 patents have been registered since 2010, and the number of patents has been decreasing since the peak at 2013 and maintains 3~400 per year. The total number of patents has not yet been less than other countries, but the number of patents of more advanced technologies, which can lead the global market, such as process monitoring, new concept processing and equipment technologies is still insufficient compared to developed countries.