• Title/Summary/Keyword: 산업 융합

검색결과 6,216건 처리시간 0.027초

이중결합을 가지는 5원환 고리화합물의 합성 및 중합 (Synthesis, Design and Polymerization of 5-membered exo methylene Cyclic Acetals)

  • 박재경
    • 한국산업융합학회 논문집
    • /
    • 제6권1호
    • /
    • pp.17-21
    • /
    • 2003
  • 5원환 고리아세탈 화합물인 4-methylenes(4,5)을 합성하고 저온조건 하에서 중합반응을 조사한 결과, 선택적인 개환중합이 일어났다. 보통의 양이온 개시제를 사용한 결과 $-78^{\circ}C$에서 가교체가 얻어졌으며, $CH_3SO_3H$를 개시제로 사용하면 같은 조건에서도 주사슬과 곁사슬에 이중결합을 가지는 개환중합체가 얻어진다. 이 중합체는 반응성을 가지는 불포화기를 포함하고 있으므로 prepolymer로써 널리 사용될 수 있다.

  • PDF

건축물의 최적 경제수명 추정분석 방법론에 관한 연구 (A Study on the Estimation Analysis Methodology of the Optimum Economic Life-Span of Buildings)

  • 최준영
    • 한국산업융합학회 논문집
    • /
    • 제6권3호
    • /
    • pp.223-230
    • /
    • 2003
  • Generally, the life-span of a multi-housing complex is over 50 years, but in reality they are usually demolished after 20 years in spite of its remaining life expectancy. Thus, this research focuses on the estimation of the optimum economic life-span of a multi-housing complex. To estimate the minimum total cost point of start to finish of a multi-housing complex, we'll apply MAPI(Machinery and Allied Product Institute) and LCC(Life Cycle Cost) theory.

  • PDF

지능형 전원설비의 원격관리제어기 개발에 관한 연구 (A Study on Development of Remote Management Controller for Intelligent Power Equipment)

  • 임병국
    • 한국산업융합학회 논문집
    • /
    • 제9권1호
    • /
    • pp.79-86
    • /
    • 2006
  • In this study, we research and develope Intelligent Remote management controller. According to the load condition, we will apply various control techniques and plan high efficient Demand control. After development, According to the Demand Control, An electricity enterprisers will expect enlargement of equipment coefficient, elevation of back up load factor and reduction effect of equipment investment. On Customer side, They will expect reduction of electric fee, saving energy and variety of service choice.

  • PDF

인벌류트 스퍼기어 치형 강도에 관한 연구 (A Study the Development of Involute Spur Gears Profiles Strength)

  • 조성철
    • 한국산업융합학회 논문집
    • /
    • 제9권4호
    • /
    • pp.269-276
    • /
    • 2006
  • Strength Design method for involute spur gears is developed. The developed gear strength design system can design the optimized gear that minimize the number of pinion teeth with face tooth. Method of optimization is matrix form which is developed from this study. Design variables are transmitted power, gear volume, gear ratio, allowable contact stress and allowable bending stress, etc. Gear design method developed this study can be apply to the gears of plants, machine tools, automobiles.

  • PDF

도시쓰레기를 이용한 활성탄의 제조 (Manufacturing of active carbon used city waste)

  • 상희선;타몬 하지메
    • 한국산업융합학회 논문집
    • /
    • 제9권1호
    • /
    • pp.87-91
    • /
    • 2006
  • This research exposes the process of carbonization of solid waste from the city and the method of activated, as well as the process of meso-porous under several test conditions. In addition, it is expected that the active carbon obtained through this process can be used as filter for air and sewage treatment, and can absorb dioxin(as almost 60-80% of meso-porous and porous properties area) unlike the existing active carbon.

  • PDF

금형가공에서의 CBN 공구의 절삭성능평가 (Assessment of Cutting Ability for CBN Ball End-Milling)

  • 최원식
    • 한국산업융합학회 논문집
    • /
    • 제8권4호
    • /
    • pp.227-234
    • /
    • 2005
  • In this study an experimental investigation was conducted to assesment of cutting ability for CBN ball end-milling, STD11 and NAK80 materials. The cutting force and surface roughness of the work-pieces were obtained in machining center. The assessment of CBN tools were inspected through the tool dynamotor and SEM. When $30^{\circ}$ negative rake angle, the wear and cutting force were good, surface roughness was better at cutting fluid during CBN cutting.

  • PDF

Carbon/Epoxy 복합재료의 피로수명예측에 관한 신뢰성 해석 (A Reliability Analysis on the Fatigue Life Prediction in Carbon/Epoxy Composite Material)

  • 장성수
    • 한국산업융합학회 논문집
    • /
    • 제10권3호
    • /
    • pp.143-147
    • /
    • 2007
  • In recents years, the statistical properties has become an important quantity for reliability based design of a component. The effects of the materials and test conditions for parameter estimation in residual strength degradation model are studied in carbon/epoxy laminate. It is shown that the correlation between the experimental results and the theoretical prediction on the fatigue life distribution using the life distribution convergence method is very reasonable.

  • PDF

복합나노소자의 대량생산 기술 개발에 독보적 영역 구축 - 서울대학교 융합나노소자연구실

  • 박지연
    • 광학세계
    • /
    • 통권122호
    • /
    • pp.25-27
    • /
    • 2009
  • 최근 나노기술이 발전을 거듭하면서 새로운 소자들에 대한 연구개발이 활발히 전개되고 있다. 서울대학교 융합나노소자연구실은 탄소 나노튜브와 실리콘 나노선 등 반도체 및 디스플레이의 첨단산업분야에서 많이 쓰이고 있는 소자들을 결합시켜 새로운 소자를 만들어내는 연구를 진행하고 있다. 특히 나노소자의 대량생산 기술에 관심을 갖고 세계적인 연구개발 업적을 꾸준히 내놓으면서 이 분야에서 독보적인 영역을 구축해 나가고 있다.

  • PDF

딥러닝을 이용한 쿼드콥터의 호버링 제어 (Quadcopter Hovering Control Using Deep Learning)

  • 최승욱
    • 한국산업융합학회 논문집
    • /
    • 제23권2_2호
    • /
    • pp.263-270
    • /
    • 2020
  • In this paper, In this paper, we describe the UAV system using image processing for autonomous quadcopters, where they can apply logistics, rescue work etc. we propose high-speed hovering height and posture control method based on state feedback control with CNN from camera because we can get image of the information only every 30ms. Finally, we show the advantages of proposed method by simulations and experiments.

딥러닝을 이용한 캠 열처리 공정 자동화에 관한 연구 (A Study on the Automation of Cam Heat Treatment Process using Deep Learning)

  • 최승욱
    • 한국산업융합학회 논문집
    • /
    • 제23권2_2호
    • /
    • pp.281-288
    • /
    • 2020
  • In this paper, we propose a control method to solve the surface hardness non-uniformity due to flow non-uniformity occurring in the heat treatment process of marine CAM. In the water cooling method including the decarbonization method, an automation device for deformation control has been developed and applied. LSTM was used to estimate the water cooling conditions, and the proposed method was found to be meaningful by improving the prototype results.