• 제목/요약/키워드: Dual use

검색결과 934건 처리시간 0.032초

Measurement of Frequency Response of Giant Magnetostrictive Material by Use of M-transform

  • Harada, Hiroshi;Kashiwagi, Hiroshi;Kndo, Koshi;Yamaguchi, Teruo
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 제어로봇시스템학회 2003년도 ICCAS
    • /
    • pp.497-501
    • /
    • 2003
  • In this paper, impulse response of giant magnetostrictive material (GMM) is identified by using M-transform. First, the displacement of GMM was measured by using the dual frequency laser interferometer. The noise included in the measured signal was removed by using M-transform. The impulse response of the GMM was identified from the input current of the driving coil and the displacement.

  • PDF

Design and Analysis of Polarization Diversity Antenna for Mobile Terminals

  • Lee, Won-Woo;Rhee, Byung-Ho
    • ETRI Journal
    • /
    • 제36권1호
    • /
    • pp.155-158
    • /
    • 2014
  • This letter presents an antenna design method for an orthogonally-polarized dual antenna for use in mobile stations (MSs) and includes a verification method for improving the link-level throughput performance of an MS that uses a proposed multiple-input multiple-output antenna. The link-level throughput performance of an MS is strongly related to the correlation between antenna branches, which is determined by the cross polarization discrimination of the second branch antenna, both numerically and experimentally.

내부점 선형계획법에서의 최적기저 추출방법의 구현 (On the Implementation of an Optimal Basis Identification Procedure for Interior Point Method)

  • 임성묵;박순달
    • 경영과학
    • /
    • 제17권2호
    • /
    • pp.1-12
    • /
    • 2000
  • In this study, we deals with the implementation of an optimal basis identification procedure for interior point methods. Our implementation is based on Megiddo’s strongly polynomial algorithm applied to Andersen and Ye’s approximate LP construction. Several techniques are explained such as the use of effective indicator for obtaining optimal partition when constructing the approximate LP, the efficient implementation of the problem reduction technique proposed by Andersen, the crashing procedure needed for fast dual phase of Megiddo’s algorithm and the construction of the stable initial basis. By experimental comparison, we show that our implementation is superior to the crossover scheme implementation.

  • PDF

BALANCEDNESS AND CONCAVITY OF FRACTIONAL DOMINATION GAMES

  • Kim, Hye-Kyung;Fang Qizhi
    • 대한수학회보
    • /
    • 제43권2호
    • /
    • pp.265-275
    • /
    • 2006
  • In this paper, we introduce a fractional domination game arising from fractional domination problems on graphs and focus on its balancedness and concavity. We first characterize the core of the fractional domination game and show that its core is always non-empty taking use of dual theory of linear programming. Furthermore we study concavity of this game.

A Design of a 8-Thread Graphics Processor Unit with Variable-Length Instructions

  • Lee, Kwang-Yeob;Kwak, Jae-Chang
    • Journal of information and communication convergence engineering
    • /
    • 제6권3호
    • /
    • pp.285-288
    • /
    • 2008
  • Most of multimedia processors for 2D/3D graphics acceleration use a lot of integer/floating point arithmetic units. We present a new architecture with an efficient ALU, built in a smaller chip size. It reduces instruction cycles significantly based on a foundation of multi-thread operation, variable length instruction words, dual phase operation, and phase instruction's coordination. We can decrease the number of instruction cycles up to 50%, and can achieve twice better performance.

전통적(傳統的) 주거(住居)에서의 공간사용(空間使用)과 구성(構成)에 대한 한(韓).일(日)간의 비교(比較)(1) -강호시대(江戶時代) 무가(武家) 주택(住宅)의 공간적(空間的) 특질(特質)- (DISTINTION OF SPACE USE AND ORGANIZATION OF TRADITIONAL HOUSES IN KOREA AND JAPAN(1) -SPATIAL CHARACTERISTICS OF WARRIOR HOUSES IN EDO PERIOD-)

  • 박선희
    • 건축역사연구
    • /
    • 제3권2호
    • /
    • pp.111-124
    • /
    • 1994
  • The major characteristics of warrior houses in Edo period were as follows: (1)The disposition, size, and facilities of warrior houses was to be settled strictly according to the social position. (2)The spatial characteristics of warrior houses has conceptual o-rganization of dual structure, such as entertainment/daily life, high/low, outside/inside.

  • PDF

dq 좌표변환을 이용한 전력외란 보상 연구 (A Study of Pourer Quality Disturbance Compensation using dq Transformation)

  • 이교성;이용제;김도훈;김양모
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 2002년도 합동 추계학술대회 논문집 정보 및 제어부문
    • /
    • pp.286-289
    • /
    • 2002
  • In this paper, we use the PI dual control using do transformation(dq stationary frame and dq synchronous rotating frame) for series voltage sag and swell compensation algorithm. Analysis, simulation results are presented for voltage sags and swells on a three-phase unbalanced voltage source.

  • PDF

Metallicity Distribution of the Galactic Halo from SDSS Photometry

  • 안덕근
    • 천문학회보
    • /
    • 제36권2호
    • /
    • pp.144.1-144.1
    • /
    • 2011
  • We explore the metallicity distribution of the Galactic halo based on the SDSS ugriz photometry. We use empirically calibrated sets of stellar isochrones to determine distances and metallicities of individual main-sequence stars in the halo. At heliocentric distances greater than 5 kpc, we find that the in situ photometric metallicity distribution reveals chemically divided dual halo components, which supports arguments from earlier studies based on the medium resolution spectroscopy. Our finding provides an unbiased estimate of relative fractions of each of these stellar components in the Galactic halo.

  • PDF

Auction 알고리즘을 이용한 최단경로에 관한 연구 (A Study on the Shortest path of use Auction Algorithm)

  • 우경환
    • 한국시뮬레이션학회:학술대회논문집
    • /
    • 한국시뮬레이션학회 1998년도 The Korea Society for Simulation 98 춘계학술대회 논문집
    • /
    • pp.11-16
    • /
    • 1998
  • The classical algorithm for solving liner network flow problems are primal cost improvement method, including simplex method, which iteratively improve the primal cost by moving flow around simple cycles, which iteratively improve the dual cost by changing the prices of a subset of nodes by equal amounts. Typical iteration/shortest path algorithm is used to improve flow problem of liner network structure. In this paper we stdudied about the implemental method of shortest path which is a practical computational aspects. This method can minimize the best neighbor node and also implement the typical iteration which is $\varepsilon$-CS satisfaction using the auction algorithm of linear network flow problem

  • PDF

민군겸용기술 정보시스템 개발 (Development of Dual Use Technology Information System)

  • 이종민;공길영;김재만;신동수
    • 한국전자거래학회:학술대회논문집
    • /
    • 한국전자거래학회 1999년도 종합학술대회발표논문집
    • /
    • pp.364-372
    • /
    • 1999
  • ㆍ “민군겸용기술”이란 민수 및 군수분야에서 공통으로 활용될 수 있는 과학기술을 의 미. ㆍ 현재, 국가 차원에서 종합적으로 구축, 운영되는 민군겸용기술 정보 시스템이 없다. ㆍ 국가 차원의 통합적이고 효율적인 민군겸용기술 사업의 관리 및 관련 정보의 유통 체계 필요 ㆍ 민군에 분산되어 있는 기술정보를 범국가적 차원에서 체계적으로 유통시켜, 민군간 기술정보 교류 활성화 달성. (중략)

  • PDF