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김경환,Kim, Kyunghwan 한국콘텐츠학회 2022 한국콘텐츠학회논문지 Vol.22 No.10
The purpose of this paper is to provide a multi-modular account of double accusative constructions in Korean in the framework of Autolexical Grammar. The grammar views syntactic, semantic, and morphological structures of sentences as modules which are generated simultaneously and independently. Unlike syntactocentric theories, this paper analyzes semantic characteristics of double accusatives through function-argument (F/A) structure along with roles structure (RS) and information structure (IS). In F/A structure of double accusatives, the first accusative becomes an argument of a predicate, unlike the possessive, which is an argument of a relational noun. Furthermore, the first accusative of double accusatives takes the role of patient in RS, which allows it to become the subject of a passive sentence. On the other hand, the second accusative, which is originally the possessee, becomes a focal area in IS. Therefore, the purpose of double accusatives is twofold: one is to turn the possessor into an independent argument of a predicate which takes patient role, and the other is to turn the possessee into a focus. Such semantic characteristics of double accusatives can be expressed by means of multi-dimensional structures of F/A structure, RS, and IS of Autolexical Grammar, which allows an integrated account of the phenomenon.
입력단에 PWM 컨버터를 이용하는 3상 병렬 UPS의 공통배터리 운전
김경환(KyungHwan Kim),오성진(SungJin Oh),김태훈(TaeHoon Kim) 전력전자학회 2005 전력전자학술대회 논문집 Vol.- No.-
본 논문에서는 입력단 역률제어 및 고조파 전류억제를 위해 PWM 컨버터를 이용하는 3상 UPS에서 직류측을 공통으로 연결하여 하나의 배터리 유닛만으로 병렬 UPS 운전이 가능한 공통 배터리 운전에 대해 기술한다. 직류측을 공통으로 이용함으로써 PWM 컨버터 간에 흐를수 있는 순환전류를 없애기 위한 제어기를 제안하고 실험을 통해 제안한 방법의 타당성을 검토한다.
김경환(KyungHwan Kim),조재한(Jaehan Jo),이현(Hyun Lee),이장명(Jangmyung Lee) 대한전기학회 2012 전기학회논문지 Vol.61 No.6
Currently power of the diesel engine is increasing continuously, where the wearing problems become more severe. The wearing happens irregularly inside the cylinder, which causes a high burden to the marine engine. In this paper, a novel scheme to measure the wearing and to represent the engine states has been proposed. To monitoring the states of the marine engine efficiently, a laser displacement sensor has been utilized to measure the wearing happening inside the marine engine. To eliminate the noise signals in the distance measurement, the wavelet transform has been adopted, which is robust against the noises caused by vibrations. An engine simulator is designed to develop the system for measuring the engine wears, where the superiority of the wavelet transform against the conventional filtering schemes has been demonstrated.