• 기술혁신학회지
• /
• 제14권spc호
• /
• pp.1152-1170
• /
• 2011

본 연구에서는 기술문서의 인용 정보를 기반으로 직접인용과 간접인용을 고려하여 핵심 문서를 선별하였고 선별된 문서 간의 인용네트워크 트리(citation network tree)를 생성하여 기술진화 경로를 추출하고자 하였다. 활용 예시로 OLED(유기발광다이오드) 분야 특허데이터를 분석하여 핵심문서를 선별한 후 문서간 인용관계 트리 계보도를 생성하였고, 그 중 OLED 원천기술이 어떤 기술진화 경로를 통해 반도체 관련 기술로 전이되었는지 분석하였다. 다른 한편으로 그래핀(graphene) 분야 논문의 인용관계 트리 분석을 통하여 간접인용을 고려한 가중치 계산방법이 직접인용만을 고려한 피인용 회수 계산법보다 현실을 더 잘 반영함을 고찰하였다.

• Steel and Composite Structures
• /
• 제13권5호
• /
• pp.409-421
• /
• 2012

Recently, as the height of building is getting higher, the applications of CFST column for high-rise buildings have been increased. In structural system of high-rise building, The RC core and exterior concrete-filled tubular (CFST) column-beam pinned connection is one of the structural systems that support lateral load. If this structural system is used, due to the minimal CFST column thickness compared to that of the CFST column width, the local moment occurred by the eccentric distance between the column flange surface from shear bolts joints degrades the shear strength of the CFST column-beam pinned connections. This study performed a finite element analysis to investigate the shear strength under eccentric moment of the CFST column-beam pinned connections. The column's width and thickness were used as variables for the analysis. To guarantee the reliability of the finite element analysis, an actual-size specimens were fabricated and tested. The yield line theory was used to formulate an shear strength formula for the CFT column-beam pinned connection. the shear strength formula was suggested through comparison on the results of FEM analysis, test and yield lime theory, the shear strength formula was suggested.

• 유통과학연구
• /
• 제10권8호
• /
• pp.15-23
• /
• 2012

This study is an attempt to explore the nature and characteristics of strategic impact of green strategy by environmental capital, corporate reputation, and technology strengths on the firm's performance across countries. The main question addressed in this paper relates to how corporate sustainability, corporate reputation, technology strength, and capabilities influence the firm's economic performance with respect to diverse dimensions of performance measures including sustained growth through the leading firms across countries in the United States, Canada, Europe, and Asia-Pacific countries. Particularly, this study attempts to empirically explore the directions and magnitudes of the operational links between new emerging strategic core competencies (e.g., sustainability green strategy by environmental focus for more sustainable path, corporate reputation by corporate social responsibility and image enhancement, and technology strengths to develop a new product and market) and the firm's economic performance with respect to diverse dimensions of performance such as accounting (ROE and EOA) - and market-based performance (Market value and Tobin's q). Considering all possible limitations that might exist with regard to selected samples and methods, this study demonstrates that environmental sustainability, corporate reputation, technological capabilities and competencies through R&D intensity and patent are most likely to be significantly associated with most market-based performance measures, but the strategic significance of other variables such as capital intensity, leverage, and administrative cost efficiency on performance tends to be different depending on which performance measure is used across different countries with diverse economic and business contexts.

• 대한한의학원전학회지
• /
• 제20권4호
• /
• pp.171-186
• /
• 2007

The fusion research subjects of Oriental medicine and Bio-Technology are actively advanced. Development of information analysis algorithm for constitution diagnosis using clinical and biological information is started recently. In addition, the research for providing personal oriented treatment information with Diagnosis result is to in the process of advancing. This paper considers the inside and outside of the country technical development trend of research for using clinical and biological information by analyzing patents and papers. It executed information analysis about changes to number of research papers and patents, present state and star higher officer of research facility from the dissertation which it sees. It is known that our country research result is slight so far in quantity and quality as result of analysis. But hereafter it contains a many developmental possibility. Also it reflects the appearance and a growth of new field like bioinformatics from constitution and bio information application field. The combination of bio information similar to constitution and heredity and computing technology to control those information efficiently comes to think with core technique.

• Journal of Information Technology Applications and Management
• /
• 제19권4호
• /
• pp.1-18
• /
• 2012

This paper identifies technology trends of national research and development (national R&D) by exploiting Korean national R&D patents, ranging from 2007 to 2010. In this paper, co-word analysis (CWA), which is a method to identify the relationship among technology terms by using their co-occurrences, is incorporated into network analysis to visualize the relationships among technology keywords of national R&D patents and calculate network indexes concerning inter-relationship diversity and strength of technology keywords. As a result, this research found that inter-relationship among technology keywords in national R&D are getting increasingly strengthening in an overall sense. In addition, the keyword inter-relationship diversity-strength map proposed in this paper revealed some significant technological keywords of national R&D : core technology keywords including "sensor", "film" and "fuel" and emerging keywords including "biosensor" and "thermoelectric". Because the proposed approach helps identify interdisciplinary trends of technology keywords from a massive volume of national R&D patents in a visual and quantitative way, we expect that the approach can be incorporated as a preliminary into the R&D planning process to assist R&D policy makers to understand technology convergence of national R&D and develop relevant R&D policies.

• 대한산업공학회지
• /
• 제42권3호
• /
• pp.209-221
• /
• 2016

As the ICT is an industry which is the basis of the technology convergence, it is the driving force of development for new business opportunities and existing industries. But, most of the existing studies for ICT convergence have identified the trend for convergence in technological terms. So, it is difficult to identify the convergence trend in the subject innovation perspective which leads the innovation activities In the ICT industry. The newly entered companies in the ICT industry are key indicators to identify the convergence trend. They have two specific characteristics that show the wide range of the convergence technology and the application rate of the convergence. Because previous studies did not take into account these two characteristics of the newly entered companies, so it is hard to analyze the exact convergence trend. Therefore, in this paper, we classify the patents for the ICT industry depending on the subject innovation. Then, we deduct the core convergence technology in the ICT industries and application area of the non-ICT industries.

• 한국기계가공학회지
• /
• 제17권5호
• /
• pp.103-110
• /
• 2018

The modern aircraft consists of tens/hundreds of thousands of components. A large proportion of these components are manufactured using a machining process. A deburring process must be performed after to machining. This study investigates the effect of changes in the deburring wheel rpm on the deburring force and radius. The deburring wheel is used to trim sharp edges off machined parts of the aircraft. The deburring wheel used consists of a core and a nylon hair(this new concept is protected under patent). We find that higher deburring wheel rpm results in increased deburring force and radius. For deburring wheel rotation rates of 500~750rpm, deburring force of 3.4~6.5kgf and deburring radius of 0.4~0.5mm were observed.

• 공학교육연구
• /
• 제21권6호
• /
• pp.81-89
• /
• 2018

Patents have been recognized as a core knowledge asset which are closely related with company's technological competitiveness. However, only a small portion of patents are actually contributing to the profit of the company. In addition, it costs a lot of money continuously to maintain the patent rights regardless of their values. Thus, effective methodologies are required to create patents with high values. It is examined what kind of differences exist between high value patents and the others in the use of TRIZ methodologies. For the purpose, we analyzed the US granted patents of Samsung Electronics. The analysis shows that there is no significant difference in the use of inventive principles, but high value patents utilize 'separation by condition' the most where as the others 'separation by space' the most frequently in the use of separation principles. In the use of standard solutions, high value patents use the 'class 2' principles frequently than the others.

• Asian Journal of Innovation and Policy
• /
• 제10권3호
• /
• pp.380-403
• /
• 2021

Recently, smart factories have gained significant importance since the development of the fourth industrial revolution and the rise of global industrial competition. Therefore, the industries' survival to meet the global market trends requires accurate technological planning. Although, different works are available to investigate forecasting technologies and their influence on the smart factory. However, little significant work is available yet on the analysis of technological trends concerning the smart factory, which is the core focus herein. This work was performed to analyze the technological trends of the smart factory, followed by a detailed investigation of recent research hotspots/frontiers in the field. A well-known topic modeling technique, namely Latent Dirichlet Allocation (LDA), was employed for this study described above. The technological trends were further strengthened with the in-depth analysis of a smart factory-based case study. The findings produced the technological trends which possess significant potential in determining the technological strategies. Moreover, the results of this work may be helpful for researchers and enterprises in forecasting and planning future technological evolution.

• 한국산학기술학회논문지
• /
• 제10권1호
• /
• pp.186-193
• /
• 2009

본 논문에서는 전열(마이크로 히터, 센서)을 이용해 금형의 표면을 가열하는 E-MOLD 특허기술을 적용하여 휴대전화용 복합기능 도광판(Prismless LGP)을 제작하고, 전사성을 평가하였다. 이를 위하여 MEMS 공정을 이용하여 복합기능 도광판용 니켈 스탬퍼를 제작하였고, E-MOLD 기술의 핵심인 이동가열코어(movable heated core)가 설치된 금형을 설계, 제작하였다 이를 이용하여 성형조건 중 금형온도를 변화시키면서 복합기능 도광판을 사출성형으로 제조 하였고, 금형온도가 성형품의 전사성에 미치는 영향에 대하여 알아보았다. 또한, 전산모사 프로그램(CAE)을 이용하여 금형온도와 사출시간에 따른 수지의 유동성을 해석하였다. 금형온도에 따른 도광판의 전사성은 $100^{\circ}C$(25.0nm), $140^{\circ}C$(48.4nm), $180^{\circ}C$(52.1nm)로 나타났고, 스탬퍼(52.1nm)와 비교했을 때 $180^{\circ}C$에서 전사성이 가장 우수했다. 전산모사 해석결과에 따르면, 수지의 유동성은 금형온도($50{\sim}180^{\circ}C$)가 증가할수록 향상되었다. 사출시($1{\sim}2sec$)이 길수록 유동성이 감소하는 경향을 $160^{\circ}C$에서 확인하였다. 따라서 수지의 전사성과 유동성은 금형온도에 따라 증가하고, 특히 유리전이 온도($140^{\circ}C$) 이상에서 크게 상승하였다.