• 대한전기학회:학술대회논문집
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• 대한전기학회 1996년도 하계학술대회 논문집 C
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• pp.1691-1693
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• 1996

The construction or enlargement of the power facilities requires the compactness of them, and the development of power system amenities because of some reasons; the shortness of a site for power facilities, social request of the harmony of them with surroundings, and so on. For the insulator in this area, the research and development of polymer or composite insulator or its applications have been increased rapidly in some advanced countries, but the activities of our country are being in a weak step although our concern has been gradually enlarged about it in recent years. Thus, in this paper, we intend to introduce the trend of research and development of it in the inside and outside of the country.

• 기술사
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• 제30권2호
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• pp.79-86
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• 1997

As network has high speed and wide communication capability, users demand diverse and new software to satisfy their needs. To meet users needs, the softwares for multimedia or groupware or distributed virtual environments can communicate the widely distributed information fast and accurately. Even though the technology for this is under development, it is deficient to support the reliable computer communication. Distributed Object System aims, as the new paradigm of distributed system software development to overcome this problem, to obtain in distributed environment the easiness of development and management, expandability, reusability which object oriented technologies support by solving the complexity of communication processing through the object oriented methods. This paper aims to introduce distributed object system, its technological properties and the current status and trend of technology development related to its standardization. Additionally, with explaining the Replicated Shared Object System(RSOS) which is developed in our country as one of the distributed object systems, its future prospects and technical issues are discussed.

• 한국측량학회지
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• 제33권3호
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• pp.193-202
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• 2015

The greenbelt of South Korea has been under the process of adjustment and removal since its first designated year. This research is aimed at predicting the effect that the removal of the greenbelt has on urban growth. The SLEUTH model was executed via three calibration phases using historical data between 1990 and 2010. The urban growth of Busan Metropolitan City was predicted under its historical trend, as well as two different scenarios including development and compact development up to the year 2030. The accuracy of model, as verified by ROC, was 85.7%. The historical trend scenario showed the smallest increase, with the urban area expanding from 175.96 km² to 214.68 km² in 2030. Scenario 2, the development scenario, showed the most increase, with a 39.9% growth rate from 2010 to 2030. However, according to scenario 3, the compact development scenario, the urban area decreased in comparison to scenario 2. Accordingly, it is necessary to have effective urban growth management to provoke eco-friendly development on the removed areas, and to strengthen the non-removed areas for sustainable development. The results obtained in this study showed that the SLEUTH model can be useful for predicting urban growth, and that it can help policy makers establish proper urban planning as a decision-support tool for sustainable development.

• 유체기계공업학회:학술대회논문집
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• 유체기계공업학회 1998년도 유체기계 연구개발 발표회 논문집
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• pp.151-158
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• 1998

The screw compressor is first invented by a Swedish engineer, Alf Lysholm in 1934. Since then, the development of the screw compressor idea for industrial applications has been continued by the Swedish research organization Svenska Rotor Maskiner, often identified by its initials SRM. The first industrial application of the machine was marketed as an air compressor in the 1950s. The screw compressor which is a positive displacement type compressor compresses gases by the rotation of a pair of mating rotors. The operation of this compressor is entirely rotary and dynamically in balance. Also there is no need for any valve mechanism and there exists less mechanical wear between the parts compared to the conventional reciprocating compressors. Due to these prominent features, the screw compressor has been rapidly spread into the air compressor market replacing the conventional reciprocating compressors and begun to be applied as a refrigerant compressor since the 1960s. In this work, the operation principle of the screw compressor is described in brief and the major design parameters affecting the compressor performance are classified. The international research trend in screw compressor development is introduced and the current situation in our country is described.

• 대한인간공학회지
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• 제31권4호
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• pp.499-505
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• 2012

Objective: Research on the transformation of interaction between mobile machines and users through analysis on current gesture interface technology development trend. Background: For smooth interaction between machines and users, interface technology has evolved from "command line" to "mouse", and now "touch" and "gesture recognition" have been researched and being used. In the future, the technology is destined to evolve into "multi-modal", the fusion of the visual and auditory senses and "3D multi-modal", where three dimensional virtual world and brain waves are being used. Method: Within the development of computer interface, which follows the evolution of mobile machines, actively researching gesture interface and related technologies' trend and development will be studied comprehensively. Through investigation based on gesture based information gathering techniques, they will be separated in four categories: sensor, touch, visual, and multi-modal gesture interfaces. Each category will be researched through technology trend and existing actual examples. Through this methods, the transformation of mobile machine and human interaction will be studied. Conclusion: Gesture based interface technology realizes intelligent communication skill on interaction relation ship between existing static machines and users. Thus, this technology is important element technology that will transform the interaction between a man and a machine more dynamic. Application: The result of this study may help to develop gesture interface design currently in use.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.814-820
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• 2009

With the rapid development of China economy, many engineering projects with large scale and investment were constructed in China and some were the biggest ones in the world. With the development of engineering practice, great progress in the research of engineering management of China was made and a large number of research findings were embodied in content of research papers and were represented by technical words. To know the state of arts in the research field of engineering management in China, three major parts, namely title, abstract and keywords of research papers in last five years from three representative Chinese journals about engineering management were chose as research materials. Unlike western languages, there are no delimiters between the words of Chinese, so the maximum matching and frequency statistics (MMFS) method, a text segmentation technique of text mining Chinese, was presented to extract the features consisting of technical words, phrases and words from the research materials. Recent research and developing trend of engineering management in China were found by comparing and analyzing the difference of technical words in the research materials of last five years.

• 식품산업과 영양
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• 제21권2호
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• pp.8-14
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• 2016

• 시멘트 심포지엄
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• 5호
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• pp.17-36
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• 1977

Features of past and present development of concrete technology and uses in Denmark will be mentioned to exemplify the general trend showing that industrial processing and product development is about to improve the utilization of cement considerably, com

• 기술혁신학회지
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• 제21권1호
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• pp.236-264
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• 2018

본 논문에서는 ICT(Information and Communications Technology) 산업 관련 기술을 주제로 경상북도의 특허출원 동향과 특허맵 중 하나인 특허 포트폴리오 분석을 적용하여 ICT 기술의 향후 방향을 살펴본 연구이다. 이에 본 연구는 경북지역 ICT 산업의 기술 동향 및 기술개발 실태를 특허정보를 통해 살펴보고, 특허 포트폴리오 분석을 통한 지역 ICT 산업의 기술방향 정도를 가늠하여, 연구개발전략 수립에 활용되는 것을 그 목적으로 한다. 경상북도에서 출원된 특허를 대상으로 국제특허분류(IPC: International Patent Classification) 별 기술동향 파악을 하였고 향후 미래유망기술 도출에 대해 분석하였다. 동향파악을 위해서는 ICT 분류코드에 의거하여 각 부문별로 출원된 특허에 대해 분석하였다. 그 결과 경상북도의 특허 출원 동향과 기술별 점유율 및 구간별 특허활동 현황, ICT 중분류 기술별 특허 출원 동향, ICT 기술시장 성장단계현황, 연구주체별 특허 출원 동향, 연구주체 간 공동연구 현황, 주요 출원인 특허 출원 동향 분석 등의 분석결과를 제시하였다. 또한 유망기술 도출을 통해 경북 ICT산업의 기술적 방향을 살펴보았다. 연구결과를 바탕으로 경북 ICT 산업의 기술 경쟁력 확보에 기여하고자 하였고, 더불어 향후 ICT 산업기술의 지향 방향과 기술정책 전략 수립에 도움이 되고자 하였다.

• 한국콘텐츠학회논문지
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• 제16권1호
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• pp.308-318
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• 2016

본 연구의 목적은 부모교육 프로그램 관련 논문의 연구동향을 분석하여 부모교육 프로그램의 개발에 대한 기초자료를 제공하고 향후의 연구방향을 제시하는 것이다. 이를 위해 2004년부터 2014년까지 국내에서 이루어진 '부모교육 프로그램' 관련 논문들을 수집하여 분석하였다. 분석 대상 논문은 박사학위 논문 41편, 석사학위 논문 88편, 학술 논문 73편 등 총 202편이다. 먼저 부모교육 프로그램의 기초연구 동향을 대상과 주제별로 살펴보았다. 그다음, 부모교육 프로그램의 개발과 수행에 관한 연구동향을 개발 근거, 적용 대상, 주제, 프로그램 설계 유형, 프로그램 횟수와 진행 시간, 교수-학습 방법, 교육자, 프로그램 효과 등으로 구분하여 살펴보았다. 자료를 분석한 결과, 우리나라 부모교육 프로그램의 개발과 수행과정을 알 수 있었다. 이러한 연구결과를 연구문제에 따라 요약하고 이를 토대로 후속연구에 대해 제언을 하였다.