• ETRI Journal
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• 제34권4호
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• pp.602-612
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• 2012

It is becoming increasingly difficult to identify promising technologies due to the influx of new technologies and the high level of complexity involved in many of these technologies. Identifying promising information and communications technology (ICT)-based converging technologies holds the key to finding new sources of economic growth and forward momentum. The goal of this study is to identify cutting-edge ICT-based converging technologies by examining the latest trends in the US patent market. Analyzing the US patent market, the most competitive of such markets in the world, can yield certain clues about which of the ICT-based converging technologies may be the next revolutionary technologies. For a classification of these technologies, this study follows the International Patent Classification system. As for ICT, there are 58 related fields at the subclass level and 831 fields at the main-group level. For emerging and converging technologies, there are 75 at the main-group level. From these technologies, a final selection for cutting-edge ICT-based converging technologies is made using a composite index reflecting the converging coefficient, emerging coefficient, and technology impact index.

• Educational Technology International
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• 제12권1호
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• pp.95-124
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• 2011

Teachers' perception on educational attributes of new technologies can be dealt with a critical factor for enhancing educational effectiveness through using new technologies in education. The present study attempts to identify teachers' perceptions on educational attributes of cutting edge technologies established through a government-driven educational agenda, "The rural public school model", To achieve this purpose, e-survey was conducted for analyzing the differences of teachers' perceptions on educational attributes of TPCs, e-Whiteboards, and Fastel according to teachers' working areas, school levels, teaching experiences, and training experiences. Participants were 123 elementary school teachers (male:62, female:61) and 66 middle school teachers (male:37, female:29) who are working in the rural public model schools (Gyeonggi: 29, Chungcheong: 12, Jeolla: 30, Gyeongsang: 88, Gangwon: 22, Jeju: 8). The results are as follows: firstly, there were statistically significant differences according to regions, but no significant difference according to school levels; secondly, significant differences in teacher's perceptions on educational attributes of TPCs and Fastel according to teacher's teaching experiences were not shown; thirdly, differences in teachers' perceptions according to their training experiences were meaningfully significant in terms of three new technologies, Based on research results, the implications and further studies are suggested in order to increase educational effectiveness and efficiency for using the technologies.

• Journal of Biosystems Engineering
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• 제24권5호
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• pp.453-462
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• 1999

At the time of discontinuing the publishing of RDA Journal of Farm management and agricultural engineering the present paper is to review the research results produced since 1962 to 1998. During the three decades, from 1960s to 1980s, the main research efforts were focused o mechanization of rice farming which contributed in food grain productions. In the 1990s, the research direction was shifted to horticultural productions and producing high quality agricultural products. We had put stress on practical use of farm mechanization, mainly on transplanting and seeding operation for rice and upland and horticultural crops productions and harvest and threshing machinery developments, in which we thought our research direction had not been quite right. However, in the future we are going to promote mechanization on livestock and upland crops productions. Furthermore, we have a plan to employ cutting edge technologies in agricultural machinery developments in order to automate and unman all farm operations satisfying the needs of advanced agricultural mechanization technology in the twenty first century.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.536-542
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• 2022

Cost overruns, schedule delays, and a shortage of skilled labor are common problems the construction industry is currently experiencing. Modularization and standardization strategies have the potential to resolve the various problems mentioned above and have been applied for various construction applications for a long time. However, the level of modularization remains low, and modular construction projects have not been getting the full benefits. Thus, this review investigated the cutting-edge technologies currently being utilized to develop the modular construction field. For this paper, qualified research papers were identified using predetermined keywords from previous related research papers. Identified literature was then filtered and analyzed. According to the included reviews, several technologies are being developed for modular construction. For example, automated design and monitoring systems for modularization were developed. In addition, research labs are utilizing robotic arms for modular construction to achieve a high level of completion in the construction industry, as is seen in the manufacturing industry. Despite these efforts, more research and development are necessary because some automation technologies still require manual activities. Thus, there is great potential for further development of modularization techniques, and further research is recommended to achieve high levels of modularization.

• 융합보안논문지
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• 제14권7호
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• pp.37-43
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• 2014

오늘날에는 기후, 전파천문, 고성능 컴퓨팅 자원 공동 활용 등의 첨단 기술을 요구하는 그룹별 연구 활동이 강화되고 있다. 이에 따라 이와 같은 오늘날의 첨단 응용 연구를 뒷받침하기 위해 첨단 연구망 역시 첨단 응용연구를 위한 수단으로서 점차적으로 자리매김하고 있다. 따라서 이러한 추세를 반영해서 첨단 연구망 네트워크의 관리적 측면 역시 집중적으로 조명되어야 할 필요성이 있다. 그렇기 때문에, 본 논문에서는 제시하고자 하는 가장 큰 맥락에서의 목표가 '여러 첨단 응용 연구의 도구적 수단으로서의 네트워크를 안정적으로 관리할 수 있도록 하는 연구'이다.

• 소성∙가공
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• 제19권5호
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• pp.290-295
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• 2010

Shaving technology is one of the significant metal forming technologies which can make the smooth and fine sheared surface of products after shearing process. The sheared surface on the side wall of the cutting edge is very important because it functions as a basic surface for measuring the dimensions of product. Effective sheared surface after shaving can be influenced by several working variables such as shaving allowance, shaving clearance, type of material and profile of cutting edge. The influence of these variables on shaving characteristics was investigated in this study. A cut-off die to make the simplified gear-shaped products was manufactured. Three kinds of sheet metals (AL5052, SPCC and SAPH440) of 3mm thickness were firstly sheared and then shaved for four shaving allowances and three sharing clearances. It was shown through experiments that the optimum working condition to give the maximum effective sheared surface in shaving was found ; Shaving allowance is 0.2mm and Shaving clearance is 0.01mm.

• 문화기술의 융합
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• 제10권1호
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• pp.227-233
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• 2024

한국은 '22년 역대 최대의 방산수출 실적을 달성하였다. 방산수출은 한국의 무기를 외국에 수출하는 것으로 방위산업 진흥을 위한 가장 효과적인 방법이다. 또한, 우수한 무기체계를 지속적으로 공급하려면 견실한 방위산업이 구축되어 있어야 하기 때문에 방산수출은 국가차원의 중요한 사안으로 정부는 대통령실을 콘트롤타워로 적극적인 지원정책을 펼치고 있다. 특히 한국의 방산수출 빅4 진입이라는 화두가 제기되고 있는데, 본 논문은 기존에 제시된 방산수출 진흥 방안과는 달리 혁신적인 방안으로서 세계 수준의 무기체계를 보유할 수 있는 첨단기술 확보와 구매국의 요구에 맞춤형으로 수출할 수 있는 공동연구개발이라는 전략적인 방안을 제시하고 구체적으로 실행할 수 있는 절차를 제시하였다. 즉 첨단기술 확보를 위해 군은 기존의 방식을 탈피하여 과감한 첨단기술 선정과 충분한 예산 지원을 하고 개발기관에게 자율성을 부여해야 하며 이 기술이 첨단무기에 적기에 적용되도록 신속개발시스템도 도입해야 한다. 수출 공동연구개발은 구매국의 첨단기술 보유 의지를 고려하여 초민감 핵심기술을 제외한 유연한 기술이전을 추진하고 전략적 파트너십을 형성하는 방향으로 나아가도록 하는 것이다. 이를 통해 한국의 방산수출 변화의 시점에서 획기적이고 새로운 전략을 통하여 한국의 방산수출이 세계 빅4에 진입하는데 도움이 되도록 하였다.

• 한국게임학회 논문지
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• 제3권2호
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• pp.42-55
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• 2003

국내의 온라인 2D 게임 개발 능력은 국제적으로 강한 경쟁력을 확보하고 있으나, 온라인 3D 게임 분야에서는 자본력과 기술력의 한계로 세계 시장에서 경쟁력 우위의 지속적인 유지가 어려운 상황이다. 본 연구에서 제안하고자 하는 온라인 3D 게임 엔진 제반 기술은 외국의 업체에 비해 상대적으로 열세에 놓인 국내 게임 개발업체에 게임 엔진 기술을 제공하여 세계적인 게임 경쟁력을 확보할 수 있도록 하는 것을 목적으로 한다. 이를 위하여 본 연구에서는 최신 기술동향을 반영한 3D 온라인게임 제작용 엔진을 위한 핵심 기술을 개발하였다. 제안된 게임엔진은 게임환경을 구성하고 시각화할 수 있는 렌더링 기술, 애니메이션 기술을 통합하고 보다 안정적인 온라인 서비스가 가능한 서버 기능을 제공한다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2002년도 추계학술대회 논문집
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• pp.172-175
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• 2002

High speed machining is one of the most effective technologies to improve productivity. It can give great advantage for manufacture of die and Moulds. However, when machining of micro groove in high speed machining a severely thermal damage was generated on workpiece and cutting tool. Generally, the cutting fluid is used to improve penetration. lubrication. and cooling effect. In order to rise the performance of lubrication. it contains extreme pressure agents (Cl, S, P). But the environment of work room go bad by those additive. Therefore, the compressed chilly air with oil mist system was developed to replace the conventional cutting fluid system. This paper carried out the tests to evaluate the machinability by the cutting environment in high speed micro groove machining of NAK80 (HrC40). Compressed chilly air with oil mist was ejected on the contact area between cutting edge and workpiece. The effect of this developed compressed chilly air with oil mist system was evaluated in terms of tool life. The results showed that the tool lift of carbide tool coated TiAlN with compressed chilly air mist cooling was much longer than that of the dry and flood coolant when cutting the material.

• 한국정밀공학회지
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• 제7권3호
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• pp.75-82
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• 1990

Automatic monitoring of the cutting conditions is one of the most improtant technologies in machining. In this study, the feasibility in applying acoustic emission(AE) signals for the in-process detection of endmill wear and fracture has been investigated by performing experimental test on the NC vertical milling machine with SM45C for specimen. As the results of detecting and analyzing AE signals on various cutting conditions, the followings have confirmed. (1) The RMS value of acoustic emission is related sensitively to the cutting velocity, but is not affected largely by feed rate. (2) The burst type AE signals of high level have been observed when removing chips distorderly and discontinuously. (3) When the RMS value grows up rapidly due to the increase of wear the endmill are generally broken or fractured, but when the endmills fracture at the conditions of smooth chip-flow or built-up-edge(BUE) occurred frequently, the rapid change of the RMS arenot found. And it is expected that this technigue will be quite useful for in-process sensing of tool wear and fracture.