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최적 연료주입 모델 추종형 ${\mu}-$합성 제어기의 설계에 관한 연구
황현준,김동완,정호성,손무헌,김영훈,황기현,문경준,박준호,황창선,Hwang, Hyun-Joon,Kim, Dong-Wan,Jeong, Ho-Seong,Son, Mu-Hun,Kim, Yeung-Hun,Hwang, Gi-Hyun,Mun, Kyeong-Jun,Park, June-ho,Hwang, Chang-Sun 제어·로봇·시스템학회 1998 제어·로봇·시스템학회 논문지 Vol.4 No.2
In this paper, we design an optimal model following ${\mu}-$synthesis control system for fuel-injection of diesel engine which has robust performance and satisfactory command tracking performance in spite of uncertainties of the system. To do this, we give gain and dynamics parameters to the weighting functions and apply genetic algorithm with reference model to the optimal determination of the weighting functions that are given by the D-K iteration method which can design ${\mu}-$synthesis controller in the state space. These weighting functions are optimized simultaneously in the search domain which guarantees the robust performance of the system. The ${\mu}-$synthesis control system for fuel-injection designed by the above method has not only the robust performance but also a better command tracking performance than those of the ${\mu}-$synthesis control system designed by trial-and-error method. The effectiveness of this ${\mu}-$synthesis control system for fuel-injection is verified by computer simulation.
Control of IPMC-based Artificial Muscle for Myoelectric Hand Prosthesis
Lee Myoung-Joon,Jung Sung-Hee,Moon Inhyuk,Lee Sukmin,Mun Mu-Seong The Korean Society of Medical and Biological Engin 2005 의공학회지 Vol.26 No.5
This paper proposes an ionic polymer metal composite (IPMC) based artificial muscle to be applicable to the Myoelectric hand prosthesis. The IPMC consists of a thin polymer membrane with metal electrodes plated chemically on both faces, and it is widely applying to the artificial muscle because it is driven by relatively low input voltage. The control commands for the IPMC-based artificial muscle is given by electromyographic (EMG) signals obtained from human forearm. By an intended contraction of the human flexor carpi ulnaris and extensor carpi ulnaris muscles, we investigated the actuation behavior of the IPMC-based artificial muscle. To obtain higher actuation force of the IPMC, the single layered as thick as $800[{\mu}m]$ or multi-layered IPMC of which each layer can be as thick as $178[{\mu}m]$ are prepared. As a result, the bending force was up to the maximum 12[gf] from 1[gf] by actuating the single layered IPMC with $178[{\mu}m]$, but the bending displacement was reduced to 6[mm] from 30[mm]. The experimental results using an implemented IPMC control system show a possibility and a usability of the bio-mimetic artificial muscle.
Kwinam Mun(Kwinam Mun),Mu-seong Lee(Mu-seong Lee) 한국캐나다학회 2015 Asia-Pacific Journal of Canadian Studies (APJCS) Vol.21 No.1
Since 1995, the local autonomy system was launched nationwide, and cultural festivals have started to flourish, supported by the Korean MCST (Ministry of Culture, Sports, and Tourism) Among many well-known Korean cultural festivals, Jinju Namgang Yudeung(Lantern) Festival is considered to be one of the most popular festivals, favored not only by Koreans but also by foreigners from many different countries. So far, previous research papers on Jinju Yudeung Festival have only focused mainly on Korean visitors and there is no sufficient study on foreign visitors and their evaluation of the festival yet. Therefore, this research paper plans to study the foreign visitors’ opinions and their evaluation in order to be able to make valuable suggestions conducive to development and improvement of Jinju Yudeung Festival’s facilities and programs by conducting an importance-satisfaction analysis (ISA) on foreigner visitors of Jinju Yudeung Festival. A total of Jinju Yudeung Festival’s 112 foreign visitors participated in this study. The participants were mostly in their 20s (54.5%) and 30s (32.1%). In terms of nationality, Americans (34.8%) comprised of the majority, and then Canadians (10.7%) and Chinese (10.7%). For the means of transportation, bus (59.8%) was the most common. The majority of the participants’ number of visit was ‘first visit’ (60.7%). The overall satisfaction ratio reached 75.74%. As a result of the importance-satisfaction analysis, it has been noticed that a variety of cultural learning materials, development of various programs, expansion of rest areas, reasonable price and a variety of food are the most important areas that should be properly taken care of and improved in order to make Jinju Yudeung Festival more attractive and successful.
한국인 여성에서 자궁내막증의 감수성과 Glutathione S-transferase 유전자 다형성과의 연관성
김무희 ( Kim Mu Hui ),김윤수 ( Kim Yun Su ),이사라 ( Lee Sa La ),심성신 ( Sim Seong Sin ),허성은 ( Heo Seong Eun ),이운정 ( Lee Un Jeong ),문혜성 ( Mun Hye Seong ),안정자 ( An Jeong Ja ),정혜원 ( Jeong Hye Won ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.12
목적 : 한국 여성에서 자궁내막증 발생빈도와 GSTP1의 유전자다형성과의 관계를 알아보고 GSTM1, GSTT1 결손변이, GSTP1유전자다형성의 조합하였을 경우 자궁내막증발생의 위험도가 증가하는지에 대해 알아보고자 하였다. 연구 방법 : 1996년 9월부터 2003년 2월까지 자궁내막증 3, 4기 환자 124명과 대조군 155명을 대상으로 혈액을 채취하여 DNA를 추출하여 GSTM1과 GSTT1, GSTP1의 유전자형을 확인하였다. 결과 : GSTP1 Objective : The aim of this study was to examine whether polymorphic variation in GSTs confers susceptibility to Endometriosis in Korean populations. Methods : The GSTM1, GSTT1, and GSTP1 genotypes were determined in 124 patients with Endometriosis (stage
최성민 ( Choe Seong Min ),채만규 ( Chae Man Gyu ),김태윤 ( Kim Tae Yun ),김성용 ( Kim Seong Yong ),백무준 ( Baeg Mu Jun ),이문수 ( Lee Mun Su ),김창호 ( Kim Chang Ho ) 대한외상학회 2002 大韓外傷學會誌 Vol.15 No.1
Background: Nonoperative treatment of liver injuries resulting from blunt trauma has gained acceptance over the past decades. The utilization of computerd tomography in the evaluation of blunt abdominal trauma provides the opportunity for nonoperative and