• 제목/요약/키워드: Industrial fields

검색결과 2,494건 처리시간 0.038초

유한 체상의 몽고메리 알고리즘 및 하드웨어 구조 설계 (Design of Montgomery Algorithm and Hardware Architecture over Finite Fields)

  • 김기원;전준철
    • 한국산업정보학회논문지
    • /
    • 제18권2호
    • /
    • pp.41-46
    • /
    • 2013
  • 유한체상의 곱셈기는 오류 제어 코드, 암호시스템 및 디지털 신호처리와 같은 여러 분야의 기본적인 구성 요소이다. 최근 다양한 유한체상의 곱셈기가 세미-시스톨릭 구조를 기반으로 제안되었다. 또한, 몽고메리 알고리즘은 효율적인 곱셈 연산 알고리즘으로 잘 알려져 있다. 본 논문은 유한체 상에서 다항식 표현을 사용하여 효율적인 몽고메리 곱셈 알고리즘을 유도하고 이를 기반으로 세미-시스톨릭 몽고메리 곱셈기를 제안한다. 제안한 곱셈기는 병렬 구조에 적합한 몽고메리 인자를 선택하였으며 전체 계산 구조를 두 부분으로 나누어 동시에 계산할 수 있다. 제안한 곱셈기는 기존의 곱셈기에 비해 시간 복잡도를 30%~50% 정도 줄임으로써 전체 시간 복잡도의 30% 정도를 줄였다.

해체주의(Deconstructionism) 경향의 타이포그래피 스타일에 관한 연구 (A Study on Typography Style by Deconstructionism)

  • 신청우
    • 디자인학연구
    • /
    • 제12권2호
    • /
    • pp.185-196
    • /
    • 1999
  • 문학, 건축 순수미술, 영화 산업디자인 등 다양한 분야에서 영향을 마치고 있는 해체주의(Deconstruction)는 디자인 분야에도 다양한 양상으로 나타나고 있고 그 보여지는 모습도 매우 광범위하며 표현에 있어서도 많은 잠재성을 가지고 있다. 해체주의 디자인은 포스트 모던한 상황과 다원화된 후기 산업사회, 데리다(J. Derrida)의 해체 이론과의 관계성을 통해 접근하고 있다. 특히 기호와 텍스트로 커뮤니케이션 하는 타이포그래피와 시각 디자인 분야는 해체 철학의 영향을 받을 수밖에 없다. 본 연구는 이러한 철학적 영향을 받고 있는 해체 타이포그래피 스타일의 변화를 분석하고 그 특성을 도출함으로써 해체 철학이 타이포그래피에 실제적으로 어떻게 적용되고 있는지 고찰하고자 한다.

  • PDF

탄소 나노튜브 채널을 이용한 전계효과 이온-전송 소자 연구 (A Study of Carbon Nanotube Channel Field-Effect Devices)

  • 이준하;이흥주
    • 한국산학기술학회논문지
    • /
    • 제7권2호
    • /
    • pp.168-174
    • /
    • 2006
  • 본 연구는 분자동력학 시뮬레이션을 이용하여 탄소 나노튜브를 이용한 전계효과 이온-전송 소자를 분석하였다. 외부 전기장에 의해 단전자 전계효과 트랜지스터 및 나노크기의 데이터 저장 장치로 활용될 수 있는 원리를 규명하였다. 외부 전기장이 증가할수록 칼륨 원자는 채널을 빠르게 통과하였다. 낮은 외부 전계에서는 나노채널의 열적 파동이 칼륨 원자의 터널링에 영향을 주게 됨을 해석하였다. 이로서 외부 전계의 강도에 따라 칼륨원자의 채널을 터널링하는 효과를 제어할 수 있는 메커니즘을 도출하였다.

  • PDF

품질개선팀의 문제해결 프로세스 통합 연구 (Process Integration for Problem Solving in Quality Control Circles)

  • 임성욱
    • 산업경영시스템학회지
    • /
    • 제28권2호
    • /
    • pp.36-45
    • /
    • 2005
  • This paper aims to investigate and analyze the process solving problems with activities of Quality Control Circle, carried out on a small scale, among various activities of industrial fields. Then this paper intends to provide and integrated model through integrating each process into one. In addition, this paper also aims to enhance the efficiency of the suggested model by realizing the model through support system.

연속형 노용 자동장입기의 기구설계 (A Mechanism Design of the Automatic Charging Machine for the Industrial Furnace of Continuous Type)

  • 김병오;강대기;전정철;이우진;김중완
    • 한국정밀공학회:학술대회논문집
    • /
    • 한국정밀공학회 1993년도 추계학술대회 논문집
    • /
    • pp.406-410
    • /
    • 1993
  • In the industria; heat treatment fields, some parts of the continous funcae have been automated, but there are not enough interests and achievements for sutomatic charging machine. The automatic charging machine is set up to the industrial mesh belt type continuous furnace which continuously orintermittently charge and extract industrial units for the heat treatments.

  • PDF

6 MeV 산업용 가속기 전원 공급 장치의 구동특성에 관한 연구 (A Study on the Drive Characteristic of the Power Supply System of 6 MeV Industrial Accelerator)

  • 임중열
    • 전력전자학회:학술대회논문집
    • /
    • 전력전자학회 1999년도 전력전자학술대회 논문집
    • /
    • pp.415-418
    • /
    • 1999
  • It is expected that industrial accelerator having been distributed fast in domestic these days will be widely used for various fields. In this study we deal with the basic consideration for the drive characteristic of power supply system in the system of industrial accelerator installed at Dongshin University. Beam energy of this system is 34keV~40KeV, 100A. The modulator emits a 11KV-380A pulse of $4.5\mu\textrm{s}$ duration that is transformed to about 34KV-40KV pulse by a pulse transformer.

  • PDF

고인양빈도에 대한 수운반작업의 최적 허용중량 결정 (Determination of Optimal Permissible Weights in Manual Material Handling for High Lifting Frequency)

  • 홍성일;이종권;남현우
    • 산업경영시스템학회지
    • /
    • 제18권36호
    • /
    • pp.1-11
    • /
    • 1995
  • Manual lifting, as a part of manual materials handling activities, is recognized by authorities in the fields of occupational health and safety as a major hazards to industrial workers. In order to minimize the injuries caused by manual material handling activities as well as maximize job productivity, it is important to determine the maximum weights. This paper presents the optimal combination of membership functions according to the high lifting frequency and determines the safe maximum acceptable weights in manual lifting activities through the actual experiment.

  • PDF

Industrial Applications of Si-based Ceramics

  • Eichler, Jens
    • 한국세라믹학회지
    • /
    • 제49권6호
    • /
    • pp.561-565
    • /
    • 2012
  • Due to their unique combination of properties, Si-based ceramics, such as silicon carbide (SiC), silicon nitride ($Si_3N_4$) and silicon oxide ($SiO_2$ as fused silica), have a range of industrial applications in fields such as the chemical industry, aluminum manufacturing, oil and gas production and solar cell production. For each materials group, examples of typical applications from various industry sectors are presented while taking into account the property fingerprint.

기업과 대학간의 산학협력마케팅 전략모델 구축에 관한 연구 (Establishing a marketing strategy model for academic-industrial cooperation between companies and universities)

  • 윤정근
    • 유통과학연구
    • /
    • 제12권4호
    • /
    • pp.65-72
    • /
    • 2014
  • Purpose - Because of the emphasis on the necessity of academic-industrial cooperation between companies and universities, there are various ongoing academic-industrial cooperation programs led by the government. As government actively supports such cooperation as policy,and universities vitalize new technology development, academic-industrial cooperation between companies and universities is being recognized as an important growth engine for companies the competitiveness of academic-industrial cooperation is also attracting more interest. The government has vitalized human resource fostering, practical R&D, and technology transfer to companies since 2012 by executing a "leading university fostering project for academic-industrial cooperation." Based on an organic interlink among universities, industry, and research institutes, the government also created and is promoting several models of such cooperation between companies and universities to support shared growth of industry and local universities. The purpose of academic-industrial cooperation is growth and benefit fromtechnology development, technical cooperation, and technology transfer between companies and universities. Research design, data, and methodology - As more academic-industrial cooperation efforts are ledby companies due to the limitation in technology-focused commercialization cooperation, the academic-industrial cooperation system became fragmented and it is losing the potential for future advancement. Specifically, as differences between universities grow, academic-industrial cooperation between companies and universities based on new technology from universities is finding difficulty advancing,while systematic support from companies to enhance the performance of businesses created by academic-industrial cooperation is also insufficient. Accordingly, this study established a growth model for the advancement of academic-industrial cooperation between companies and universities and suggested a plan to strengthen the competitiveness and promote the future advancementof academic-industrial cooperation between companies and universities by analyzing the current situation of such cooperation and diagnosing its issues. Results - This study explored the concept and current status of academic-industrial cooperation relationships and analyzed related issues. For such cooperative organizations to be competitive, the employment environment of professional human resources for academic-industrial cooperation should be improved and measures to secure professional resources should be taken as early as possible. Though the academic-industrial cooperation now is being led by government, there is a limitation based on business models, which require creation of profit; however, an academic-industrial cooperation model still cannot stand alone without the support of government. This study also pointed out that a having only a plan to build competitiveness of companies and universities for academic-industrial cooperation is not sufficient. Conclusions - In order to increase the competitiveness of academic-industrial cooperation, a detailed growth-sharing model for academic-industrial cooperation should be developed, and there should be more joint development processes for the advancement of such cooperation in which the need for technology development can be verified in advance. In addition, beyond focusing on technology-focused academic-industrial cooperation, a network between companies and universities searching for ideas for academic-industrial cooperation in the fields of human and social aspects should be created. A new academic-industrial model linking current cooperation between companies and universities to the local area should be built based on such academic-industrial cooperation in human and social fields.

Analyzing the Major Issues of the 4th Industrial Revolution

  • Jeon, Jeonghwan;Suh, Yongyoon
    • Asian Journal of Innovation and Policy
    • /
    • 제6권3호
    • /
    • pp.262-273
    • /
    • 2017
  • Recently, the attention to the $4^{th}$ Industrial Revolution has been increasing. In the $4^{th}$ Industrial Revolution era, the boundaries between physical space, digital space, and biological space are becoming blurred because of the active convergence between various fields. There are many issues about the $4^{th}$ Industrial Revolution such as artificial intelligence, Internet of things, big data, and cyber physical system. To cope with the $4^{th}$ Industrial Revolution, an accurate analysis and technology planning need to be undertaken from a broad point of view. However, there is little research on the analysis of the major issues about the 4th Industrial Revolution. Accordingly, this study aims to analyse these major issues. Data mining such as topic modelling method is used for this analysis. This study is expected to be helpful for the researcher and policy maker of the 4th Industrial Revolution.