• Clean Technology
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• v.16 no.1
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• pp.1-11
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• 2010

As crude oil with heavier and/or highly oxidized components prevails, purification technologies such as desulfurization, denitrilization and demetalization have become important issues to control contents of sulfur and other impurities affecting the quality of petroleum. Also, the importance of catalyst technologies related with crude oil purification has been emphasized to control the production and yield of products. In this paper, technology trends of impurity removal such as sulfur, nitrogen and metal components from crude oil and catalysts related with purification of crude oil were studied through patent analysis. The patents published or registered in Korea, U. S. A., Japan, and Europe from mid 1970's to 2009 had been analyzed based on the application tendency, the distribution of major applicants, and their active indices, etc. The technology flow was figured out to see the technology trends.

• Journal of Korean Society for Quality Management
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• v.49 no.1
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• pp.97-112
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• 2021

Purpose: The purpose of this paper is to analyze the technology convergence and its characteristics, focusing on the defense technologies in South Korea. Methods: Patents applied by the Agency for Defense Development (ADD) during 1979~2019 were utilized in this paper. Information Entropy analysis has been conducted on the patents to analyze the usability and potential for development. To analyze the trend of technology convergence in defense technologies, Social Network Analysis(SNA) and Association Rule Mining Analysis were applied to the co-occurrence networks of International Patent Classification (IPC) codes. Results: The results show that sensor, communication, and aviation technologies played a key role in recent development of defense science and technology. The co-occurrence network analysis also showed that the convergence has gradually enhanced over time, and the convergence between different technology sectors largely emerged, showing that the convergence has been diversified. Conclusion: By analyzing the patents of the defense technologies during the last 30 years, this study presents the comprehensive perspectives on trends and characteristics of technology convergence in defense industry. The results of this study are expected to be used as a guideline for decision making in the government's R&D policies in defence industry.

• Asian Journal of Turfgrass Science
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• v.20 no.1
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• pp.33-40
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• 2006

Many soil amendments have been used nowadays to improve physical and chmical condition of turf soil, which might ultimately optimize turfgrass growth in golf courses. This study was carried out to Investigate the effects of new organic soil amendment containing pig excreta 50% and sawdust 50% on growth of zoysiagrass (Zoysia japonica L.) and kentucky bluegrass (Poa pratensis L.) in greenhouse. Three applicable treatments with soil mixtures of 10, 20, and 30% (v/v) animal organic soil amendment (AOSA) with sand, were tested for chemical property, physical property, visual quality and root length of zoysiagrass and Kentucky bluegrass. As results, application of $10{\sim}30%$ AOSA mixtures were proper to grow turfgrass in soil nutrition. Especially, the treatment with 20% AOSA mixtures showed 0.7% in organic matter, which meets to green standard of USGA. Also, 30% AOSA mixtures was 1.1% in organic matter, which might be desirable for zoysiagrass-planted golf courses in Korea. It was turned out that addition of AOSA decreased the hydraulic conductivity in soil physical property Because the sand possess high hydraulic conductivity, it is recommended to combine $10{\sim}30%$ AOSA with sand in order to sustain soil balance. The treatment with $10{\sim}30%$ AOSA noticeably increased visual quality of both zoysiagras and Kentucky bluegrass during 90 days. However, treatments with either 20% or 30% AOSA were effective to develop root length of zoysiagrass but treatments with 20% AOSA were more effective than that of 30% AOSA mixtures to promote root length of Kentucky bluegrass at 60 days. In conclusion, considering all vital factors such as visible quality, root growth, organic matter content, and economical efficiency, was taken, it is recommended that a $20{\sim}30%$ mixture of AOSA with sand is good for the growth of zoysiagrass and 20% mixture for Kentucky bluegrass.

• Journal of Korea Technology Innovation Society
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• v.21 no.3
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• pp.1155-1178
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• 2018

Future automobiles are evolving into movable living spaces capable of eco-friendly autonomous driving. The role of electrically processing, controlling, and commanding various information in the vehicle is essential. It is expected that the automotive semiconductor will play a key role in the future automobile such as self-driving and eco-friendly automobile. In order to foster the automotive semiconductor industry, it is necessary to grasp technology trends and to acquire technology and quality that reflects the requirements in advance, thereby achieving technological innovation with industrial competitiveness. However, there is a lack of systematic analysis of technology trends to date. In this study, we analyzed the technology trends of automotive semiconductors using patent analysis and topic model, and confirmed technologies such as electric cars, driving assistance, and digital manufacturing. The technology trends showed that element technology and technical characteristics change according to technology convergence, market needs, and government regulations. Through this research, it is expected that it will help to make R&D policy for automotive semiconductor industry and to make decision for industrial technology strategy establishment. In addition, it is expected that it will be used effectively in detail research direction and patent strategy establishment by providing detailed classification of technology and trend analysis result of technology.

• Journal of Practical Agriculture & Fisheries Research
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• v.23 no.2
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• pp.99-111
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• 2021

The connected farm that agricultural land, agricultural machinery and farmer are connected with an IoT gateway is in the commercialization stage. That has increased productivity, efficiency and profitability by intimate information exchange among those. In order to develop the educational program of intelligent agricultural machinery and the agricultural machinery safety education performance indicator, this study analyzed patent trends of agricultural machine with unmanned technology used in agriculture and efficiency technology applied advanced technologies such as ICT, robots and artificial intelligence. We investigated and analyzed patent trends in agricultural machinery of Korea, the USA and Japan as well as the countries in Europe. The United States is an advanced country in the field of unmanned technology and efficiency technology used in agriculture. Agricultural automation technology in Korea is insufficient compared to developed countries, which means rapid technological development is needed. In the sub-fields of field automation technology, path generation and following technology and working machine control technology through environmental awareness have activated.

• Journal of the Society of Disaster Information
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• v.19 no.1
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• pp.128-137
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• 2023

Purpose: This study proposes a way to improve quality and increase safety by studying a method that allows the system scaffolding, which is partly used for high-altitude work at construction sites, to be applied to various types of structures in shipbuilding and plant industry sites. Method: A fact-finding survey was conducted targeting 8 companies, and a plan was established that reflected the opinions of the field survey and the practitioners and experts by analyzing the literature and the Internet survey. Result: Through analysis of related patents, FGI with companies, etc., we discovered the possibility of application expansion through research and development of materials that can be applied to various types and improvement plans for enhancing the professionalism of construction companies. Conclusion: System scaffolding has a high importance in terms of safety, but related research around the world is sluggish. Therefore, it will be possible to meet the demands for quality and safety by enhancing the software expertise and developing and researching user materials that can be applied to various types.

• Tribology and Lubricants
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• v.2 no.2
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• pp.59-64
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• 1986

쌍용정유는 윤활기유 생산을 위한 최신공정인 Gulf 특허의 수질첨가 개질공정을 채택, 일본, 카나다에 이에 세계에서 3번째로 건설된 공장으로서 국내 수요전량을 수입에만 의존해 오던 재래식 공정인 용제유출 방식의 윤활기유를 대신하여, 최고급 품질의 윤활기유를 국내에 안정적으로 공급할 수 있는 확고한 기반을 마련하고 지난 5년여 동안 국내수요에 적극 공급해오고 있다. 일반적으로 볼때 쌍용정유에서 생산.공급하고 있는 윤활기유는 국내 각 정유사등 윤활유배합(제조)회사에 공급되어 용제에 따라 첨가제를 배합하는등, 소포장 단계를 거쳐 일반수요자에게 판매되는데, 완제품 윤활유의 사용은 대략 65% 정도가 자동차에 쓰여지고 있으며 공장등 산업시설에 23%, 선박, 기타 용도로 12%정도의 사용분포를 보이고 있다. 산화, 열안정성은 기유의 생명 불순물제거 완벽, 색상 뛰어나 수질첨가 개질공정은 재래식 공정인 용제추출 방식과 어떤 차이점을 갖고, 제품의 특성이 어떤 차이를 나타내는가를 알아보기 위해서는 2가지 방식에 의한 제품의 장단점을 비교해보는 것이 바람직하다고 하겠다.

• Journal of Korean Institute of Industrial Engineers
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• v.32 no.4
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• pp.358-368
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• 2006

The significance of intellectual property in the knowledge-based society has been increasing and as a result, the patent customer's demand for a top quality patent administration service has increased as well. Therefore, Korean Intellectual Property Office(KIPO) adopted 6 sigma as a tool for KIPO's innovation to improve the quality of patent administration and enhance customer satisfaction. KIPO's steadfast promotion of 6 sigma resulted in many successful outcomes such as improvement of policy and service process from customer's point view, streamlining the administrative procedures, increased work efficiency, capability enhancement of core personnel, and so on. Since 6 sigma has proved itself to be equipped with features suitable for innovation in public sector, it can be used as an extensible innovation tool to meet the challenges in rapidly changing administration environment and to achieve a competitive edge.

• Magazine of the Korea Concrete Institute
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• v.14 no.4
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• pp.22-32
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• 2002

독일의 건설업자였던 마겐스(J. H. Margens)가 1903년 스타른베르그(Starnberg)에 레미콘 플랜트를 건설하고 레미콘의 제조 특허를 받은 것을 레미콘 산업의 시작으로 본다. 미국에서는 독일보다 10년 늦은 1913년 메릴랜드(Mary-land)주의 볼티모어(Baltimore)시에 플랜트의 고정 믹서로 혼합한 다음 운반하는 중앙혼합방식(central mixing system)의 레미콘 플랜트가 건설되었다. 그러나 이때는 플랜트에서 혼합하여 덤프트럭으로 운반하는 방식이었기 때문에 품질문제가 발생할 수 있어 크게 환영을 받지 못하다가 1926년에 이르러 트럭믹서의 발명으로 레미콘 산업발전의 큰 계기를 마련하였다. 초기부터 미국의 경우는 공급지역이 넓은 특징이 있어 플랜트에서 재료만 계량하여 트럭믹서에 적재하여 운반 중에 혼합하는 트랜싯 믹싱방식(transit mixing system)이 성행해 왔다.(중략)

• Proceedings of the Korean Printing Society Conference
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• 2002.05a
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• pp.32-32
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• 2002

디지탈 윤전 등사기 또는 디지털복사 인쇄기(digital duplicator)라고 불리우는 사무용 소형 단색 윤전 인쇄기는 컴퓨터 스캐닝 기술과 스텐실 열천공 기술의 발달로 손쉽게 인쇄기상에서 자동복사 제판이 가능해 짐에 따라 우리나라에 1990년대부터 학교, 관공서, 군 및 교회등의 시험지와 홍보전단지 인쇄용으로 널리 보급되었다. 여기에 사용되는 잉크는 카트리지에 장착식으로 공급되는데, 에멀젼 잉크로서 천공으로 이루어진 스텐실 화상 뒷면으로부터 가압 통과되어 인쇄용지에 윤전식으로 인쇄된다. W/O형 에멀젼 잉크가 그 기본 전형이 된 것은 스텐실의 미세구멍을 통과하도록 큰 로라압력을 받아야 하는 잉크는 우선적으로 높은 점도이어야 하나 수십 마이크론의 미세구멍을 쉽게 빠져 나가도록 침투성이 빨라야 하는 이중적 레올로지 특성이 요구되기 때문이다. 그러나 에멀젼의 원천적인 불안정성과 물과 기름의 상호 대립적인 물리 \ulcorner화학적 특성을 주목하고 번짐, 얼룩, 배면침투, 광택문제, 건조성 지연 등의 인쇄품질을 향상시키고져 그동안 많은 연구개발이 노력이 있어 왔다. 이에 대하여 세계 시장을 크게 장악하고 있는 일본의 특허를 주로 검토하여 디지털 인쇄기용 W/O 에멀젼 잉크 기술 및 현황에 대해서 연구 조사하였다.