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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.
이상인,김종훈,정미혜,허갑도,손성표,변상준,최세식,배무현 대한내분비학회 1993 Endocrinology and metabolism Vol.8 No.2
Myasthenia gravis (MG) is a neuromuscular transmission disorder charaterized by fatigue and weakness of voluntrary muscles. This muscular weakness is intensified by activity and stress, and improved by the use of anticholinesterase compounds. The pathogenesis is known to be an autoimmune related reduction in the number of available acetylcholine receptors at neuromuscular junction. Myasthenia gravis is usually associated with other autoimmune disorders, such as autoimmune thyroid disease, rheumatoid arthritis, SLE, pernicious anemia, Sj grens syndrome, ulcerative colitis, Eaton-Lambert syndrome. In the past reports, there were some case of hyperthyroidism associated with myasthenia gravis. But, hypothyroidism accompaning myasthenia gravis was reported rarely. So, we report a case of myasthenia gravis associated with Hypothyroidism may be due to Hashimoto's thyroiditis. (J Kor Soc Endocrinol 8:217∼220, 1993)