• Proceedings of the Korean Institute of Communication Sciences Conference
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• 1983.10a
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• pp.27-31
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• 1983

It is the aim of the placement studies of telephone exchanges to provide facility plans which give the most economic investiment time and size to satisfy the future telephone demand of the area. Main subjects of the stuies are usually the optimal number, locations, service areas, final capacity of the telephone exchanges. This paper explains about the basic methodologies and algorithms expressed in PLAX, a software developed by KETRI to tackle the placement problem in urban areas.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.10a
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• pp.365-367
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• 2012

해양교통시설 측정선 "한빛호"는 우리나라 전 해역의 광파표지(유 무인등대), 전파표지(GNSS, DGNSS, Loran-C 등), 음파표지(무신호기) 성능 측정 및 분석을 담당하는 국내 유일의 선박으로 그 중 전파표지의 GNSS와 DGNSS 측정된 수신테이터 분석을 통해 항법성능 요구조건 충족 여부와 전파 관련 유관기관에 참고자료로 활용하는데 기여하고자 합니다.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.389-390
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• 2023

본 논문에서는 패션 매칭의 어려움을 해결해주기 위하여 '무신사' 쇼핑몰을 이용하여 크롤링하고 이를 정제한 dataset을 이용하여 패션 스타일의 핵심 요소 중 하나인 신발에 초점을 맞추어, 이미지 기반의 패션 매칭 시스템인 빅데이터 기반 패션 도우미, Shoes Navigator 를 제안한다. 이를 위해 컴퓨터 비전 및 딥 러닝 기술을 활용하여 이미지에서 의류 항목을 자동으로 감지하고, 스타일, 색상과 같은 패션 특성을 추출한다. 또한, 사용자의 개인적인 스타일을 고려하여 최적의 매칭을 제안하기 때문에 패션 코디 문제를 용이하게 해결할 수 있다.

• Proceedings of the KIEE Conference
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• 2006.04b
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• pp.83-86
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• 2006

A grid-connected distributed generation system which consists of engine generator, dc link with multiple energy sources and inverter is proposed. All six of the stator leads of the generator, which is a surface mount permanent magnet machine, are brought out to the terminal of the generator. Three leads are connected to the inverter and the others are connected to the utility grid. In this proposed system the power from the engine-generator and the power from dc link can be controlled simultaneously by only one three-phase power converter. A control algorithm for the system is developed and verified by experiment results.

• Proceedings of the Korea Society of Design Studies Conference
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• 1999.05a
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• pp.72-73
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• 1999

1-1. 디자인은 종합과학이다. 아래 도표는 디자인이 종합과학의 두엇을 만족시켜야 할 것인가에 대한 설명이다. 1-2. 종교(학)적 연구 접근의 구체적 사유ㆍ첫째, 모든 과학이 궁극적으로 인간의 행복추구에 목적이 있다면 산업디자인학도 과학의 한 분야로서 인간의 행복추구를 위한 방편이 되는 종교와 신학을 마땅히 연구의 대상으로 받아들여야 하며, ㆍ 둘째, 이 세상은 무신론자들뿐만 아니라, 유신론자들에 의해서도 제품은 디자인되고, 생산되고, 교환되고, 분배되고, 소비되는 사회이기 때문에 이들에 의한 종교와 신학에 바탕한 디자인의 논리는 설득력을 가지며, ㆍ 셋째, 비록 종교적 견해를 달리함으로 인한 수긍될 수 없는 부분이 있을지라도, 그것은 어디까지나 종교적 견해가 다름으로 파생되는 문제이지, 논제가 그 자체의 논리성을 갖고있다면 마땅히 배타되어 져서는 아니 될 것으로 보아진다.(중략)

• Korean Management Science Review
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• v.11 no.2
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• pp.207-235
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• 1994

Regarding the study in innovation/R&D programs evaluation, twelve cases from the U.S ., U. K., Germany, France, Sweden, Australia, Japan, and EC are analyzed, and its implications to Korean situation are investigated. From the analysis of the cases, some valuable guidelines for Korea are developed. Some of the guidelines are: the evaluation must be treated as an integral part of the Government supported programs, specialists in evaluation should be raised, the long-term effects and non-economic/social effects should also be included in the evaluation, various efforts to acquire more exact and versatile information necessary for quality evaluation should be made, and additional effort is required for the evaluation to be actualized.

• Proceedings of the KIPE Conference
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• 2001.12a
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• pp.49-52
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• 2001

This paper presents a new partial excitation method of the moving magnet type linear synchronous motor(MMLSM) and proposes a new way of implementation for multi-mover MMLSM. Originally, partial excitation circuit which excites the coils only under the magnet is necessary for proper operation of MMLSM. In conventional partial excitation method there is inevitably impedance unbalance situation. So a new partial excitation method Is proposed to solve this impedance unbalance problem. Based on this partial excitation method, a novel control method for multi-mover MMLSM is proposed. The validity and performance of the proposed partial excitation method and multi-mover MMLSM is verified by experimental results.

• Korean Management Science Review
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• v.14 no.1
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• pp.177-203
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• 1997

This study concerns performance evaluation of the research-funding agencies focused on Korea Science and Engineering Foundation(KOSEF). On the basis of the constituents approach and the systems approach of organizational effectiveness theory, the evaluation items are derived reflecting generic characteristics of the research-funding agencies, and their priorities are determined using analytic hierarchy process(AHP). Three groups of constituents with differing interest and expections are identified, and their perceptions on the importance of the evaluation items are measured through questionnaire survey. Analyses show that the evaluation items perceived important by each constituency are significant different from one another. The implications of the result to the Government and KOSEF are discussed.

• Proceedings of the KIEE Conference
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• 2001.07b
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• pp.1185-1187
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• 2001

본 논문에서는 Motorola사의 MPC555마이크로프로세서를 탑재하여 개발한 제어보드가 소개된다. 이 보드를 사용하여 하이브리드 전기자동차의 발전기를 제어하는 실험을 수행하였다. MFC555는 전력시스템 제어에 필요한 다양한 입출력 장치를 내장하고 있어서 통합제어를 위한 one-chip solution을 가능하게 해 준다. MPC555는 내부 플래시 메모리가 비교적 대용량(448kbytes)이고 부동 소수점 연산이 가능하다. 또한 A/D 채널이 32개이고 SPI(Serial Peripheral Interface) 모듈 1개, SCI(Serial Communication Interface) 모듈 2개, CAN(Contol Area Network) 모듈 2개 등의 다양한 통신채널을 내장하고 있다. MPC555는 TPU(Time Processing Unit) 채널 32개로 다양한 timing function을 구현할 수 있게 해 준다. 개발된 제어 보드를 이용하여 하이브리드 전기자동차의 유도발전기 시스템에 대한 축소 시뮬레이션을 수행하였다.

• Journal of the Korean Operations Research and Management Science Society
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• v.14 no.1
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• pp.177-177
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• 1989

This study concerns performance evaluation of the research-funding agencies focused on Korea Science and Engineering Foundation(KOSEF). On the basis of the constituents approach and the systems approach of organizational effectiveness theory, the evaluation items are derived reflecting generic characteristics of the research-funding agencies, and their priorities are determined using analytic hierarchy process(AHP). Three groups of constituents with differing interest and expections are identified, and their perceptions on the importance of the evaluation items are measured through questionnaire survey. Analyses show that the evaluation items perceived important by each constituency are significant different from one another. The implications of the result to the Government and KOSEF are discussed.