• Title/Summary/Keyword: MC설계

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Design Features and Operating Characteristics of the MC-50 Cyclotron (MC-50 싸이클로트론의 설계 특징과 동작 특성)

  • Bak, Hae-Ill;Bak, Joo-Shik
    • Nuclear Engineering and Technology
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    • v.21 no.3
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    • pp.216-222
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    • 1989
  • The MC-50 cyclotron at Korea Canter Center Hospital is now operational for neutron therapy and medical radioisotope production. Design features, mechanical structures and operating characteristics of the MC-50 are described in this paper. Optimum operating condition for this cyclotron has been determined by the repetitive running, and the performances of the internal beam have been investigated through the measurements of intensity and spatial distribution of the internal beam as a function of the radius of the cyclotron. Routinely, the 40 $\mu$A of 50 MeV protons have been obtained at first Faraday cup with a extraction efficiency of 61%.

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A Study on Design of Smart Home Service Robot McBot II (스마트 홈 서비스 로봇 맥봇II의 설계에 관한 연구)

  • Kim, Seung-Woo;Kim, Hi-Jun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.4
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    • pp.1824-1832
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    • 2011
  • In this paper, a smart home service robot McBot II is newly developed in much more practical and intelligent system than McBot I which we had developed a few years ago. Thus far, vacuum-cleaners have lightened the burden of household chores but the operational labor that vacuum-cleaners entail has been very severe. Recently, a cleaning robot was commercialized to solve but it also was not successful because it still had the problem of mess-cleanup, which pertained to the clean-up of large trash and the arrangement of newspapers, clothes, etc. Hence, we develop a new home mess-cleanup robot McBot II to completely overcome this problem on real environments. The mechanical design and the basic control of McBot II, which performs mess-cleanup function etc. in house, is actually focused in this paper. McBot II is mechanically modeled in the same method that the human works in door by using the waist and the hands. The big-ranged vertical lift and the shoulder joints to be able to forward move are mechanically designed for the operating function as the human's waist when the robot works. The mobility of McBot II is designed in the holonomic mobile robot for the collision avoidance of obstacle and the high speed navigation on the small area in door. Finally, good performance of McBot II, which has been optimally desinged, is confirmed through the experimental results for the control of the robotic body, mobility, arms and hands in this paper.

A Study on the Planning Characteristics of Infill System for Long Life Housing Applied with MC Design (MC설계를 적용한 장수명주택 인필의 계획특성에 관한 연구)

  • Wang, Woo-Chul;Lim, Seok-Ho
    • Journal of the Korean housing association
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    • v.27 no.1
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    • pp.63-70
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    • 2016
  • Domestic apartment housing has been designed in accordance with the new housing supply-driven policies for a long time. As a result, its design, material production, construction, maintenance and remodeling process, rather than being systematically performed, were individually approached to cause insufficient linkage between technologies. For these problems and the supply of long life housing, active research on long life housing has been conducted in Korea since 2005. However, the existing research on long life housing has been focused on a single item with no connection made between infill systems, and no overall interface rule, resulting in no activation of the business. In this study, for the supply and activation of long life housing, we aim to analyze the problems of existing long life housing to set up its matching standards for infill systems.

A controller design for direct drive arm robot using 32-Bit (MC 68020) CPU (32비트(MC 68020) CPU를 사용한 직접구동방식 로보트의 제어기 설계)

  • 이주장;윤형우;곽윤근
    • 제어로봇시스템학회:학술대회논문집
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    • 1988.10a
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    • pp.82-85
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    • 1988
  • This paper are the manufacture of controller of direct drive arm robot using 32 bit CPU(MC 69020). The work would draw on KIT of Robotics Laboratory whose extensive experience in 16 bit CPU Controller(MC 68008) in addition to the WHILE languages. We found that this controller is good for the direct drive arm robot controller for the use of self-tuning algorithms and real time control.

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The study on the design method for DLMS/COSEM meter S/W using Meter Configuration Script (Meter Configuration Script를 이용한 DLMS/COSEM 계량기 S/W 설계 방법에 대한 연구)

  • Im, Chang-Jun;Hahn, Kwang-Soo;Kim, Byung-Seop;Kim, Jong-Bae;Jung, Nam-Joon
    • Proceedings of the KIEE Conference
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    • 2006.11a
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    • pp.108-110
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    • 2006
  • 계량기의 시장이 독점 시장에서 자유 시장으로 천이 되면서 시장은 계량기의 상호운용능력과 계량기의 지능, 관리능력 그리고 보안등의 부가적인 기능들을 요구 하게 되었다. 이러한 시장의 요구에 맞추어 DLMS 프로토콜을 표준으로 하고 COSEM 오브젝트 모델링 기법을 사용하는 계량기 표준인 IEC 62056이 제정되었다. 본 논문에서는 IEC 62056에서 정의한 프로토콜 및 서비스에 적합한 DLMS/COSEM 계량기의 S/W 아키텍처 및 그 설계 방법을 제안한다. 계량기 S/W는 크게 MCS와 MOM으로 구성되며, MCS는 계량기의 모델링 스크립트로 COSEM 오브젝트와 계량기의 구체적인 기능을 명시하고, MOM은 MCS를 읽어 계량기를 구동 시키는 모듈로 MCS에서 선언된 기능 및 동작을 해석하여 계량기를 전기, 가스, 수도 등의 기능을 갖는 계량기로 동작시키는 역할을 한다.

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The Inverse Design Technique of Propeller Blade Sections Using the Modified Garabedian-McFadden Method (Modified Garabedian-McFadden 방법을 이용한 프로펠러 날개 단면의 역설계 기법)

  • C.M. Jung;J.K. Cho;W.G. Park
    • Journal of the Society of Naval Architects of Korea
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    • v.36 no.4
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    • pp.28-36
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    • 1999
  • An efficient inverse design method based on the MGM(Modified Garabedian-McFadden) method has been developed. The 2-D Navier-Stokes equations are solved for obtaining the surface pressure distributions and coupled with the MGM method to perform the inverse design. The MGM method is a residual-correction technique, in which the residuals are the difference between the desired and the computed pressure distribution. The developed code was applied to several airfoil shapes and the propeller. It has been found that they are well converged to their targeting shapes.

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A Study on Application of MC Design Standardization Standard and Current Status in Ga-Yang Modular Housing (가양 모듈러 실증단지의 MC설계표준화 기준 적용 및 실태조사 연구)

  • Lim, Seok-Ho;Chung, Joon-Soo;Seol, Wook-Je;Baek, Cheong-Hoon
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.5
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    • pp.85-94
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    • 2019
  • The modular apartment has been completed for the first time in Korea through the national research and development (R&D) project in December 2017, and 30 households moved in. Although conditions such as technicality and constructability have to be satisfied to adopt and spread the modular apartments in the future, economic feasibility is the most important factor among the conditions. The economic feasibility of modular apartments can be compared with that of existing reinforced concrete (RC) structure apartments. It is highly important to reduce the construction cost through standardization above all. The standardization refers to establishment of national design standards and principles, and it is important for manufacturers and building companies to comply with those standards and principles. The modular construction (MC) skill in Korea is at an early adoption stage and the MC market is not widely expanded yet. Thus, the application of the MC design, which is the basis of the standardization, has not been widely accepted. However, related R&D projects are now performing mainly by the Ministry of Land, Infrastructure, and Transport to promote modular apartments in recent years and the design standardization standard (draft) is now prepared to be notified as a result of the steady research. Furthermore, pilot complexes for demonstration purpose are under construction, starting from public rental apartments. Thus, MC method-applied public rental houses will be spread in near future. This study aims to investigate the current design status in the Ga-Yang Housing as a pilot modular complex to produce and supply more economical and efficient modular houses, and analyze the problems by comparing the design standardization standards with pre-notified design standardization standards and summarize the modifications between them thereby presenting foundational data for establishment of the design standardization in the modular business industry.

Evaluation of Creep Models with the Consideration of Concrete's Strength Level (콘크리트 강도대별 크리프 예측모델 평가)

  • Moon, Jae-Heum
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.14 no.4
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    • pp.154-159
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    • 2010
  • Recent concrete structures have been being constructed with higher strength concrete than normal strength concrete. Therefore, it is necessary to review the applicabilities of current design codes and models for the prediction of mechanical behaviors of concrete materials such as creep. To investigate the applicability of creep model with the consideration of the strength level of concrete, three current models (ACI 209R, CEB-FIP MC90 and EC2) were studied and compared with series of experimental results. It was shown that EC2 model which is the updated model of CEB-FIP MC90 better predicts creep coefficient for high strength level concretes and showed relatively good agreements with experimental data.

Design of Circular Symmetric Two-Dimensional FIR Digital Filter (환상대칭 2차원FIR 디지털필터의 설계)

  • 이경철;강철호
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.11 no.5
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    • pp.340-348
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    • 1986
  • The design of two-dimensional zero-phase FIR digital filters by transformations is a popular and well-developed technique, but is suffers from the disadvantage that in its current form the filters with only four quadrant symmetry can not be designed exactly circular symmetry at frequencies far from the origin. it is shown how symmetry requirement for the filters with any number of dimensions can be fulfilled with arbbitrary percision by adapting transformation with the appropriate series expansions. this transformation has been known generally as the McClellan transformation. In this paper, a simple method for ensuring exelent circular symmetry at frequencies far from the origin is presented. This method which employs the Modified Mcclellan trnsformation for the design of 2-D FIR filter form 1-D FIR filters is quite useful for the design of 2-D FIR filters with multiple cutoff boundaries such as band-pass filters.

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Architecture Design of PN Code Acquisition for MC-CDMA Systems (MC-CDMA 시스템용 PN 부호 동기획득 구조의 구현)

  • 노정민;이성주;김재석
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.40 no.2
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    • pp.117-125
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    • 2003
  • In this paper, we propose a new code acquisition architecture having the features of low complexity and high speed for the MC-CDMA system. The newly designed searching finger has function of the searcher as well as the finger. The searching finger tests the PN code Phase as the searcher during the initial acquisition, and as the finger after the initial acquisition. The proposed system has reduced the average acquisition time of the PN codes to $T_{acq}$/19 in the 20MHz MC-CDMA system with 75% reduction of H/W complexity.y.