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탁한호,이병로,김병철,전중창,황석순,정민우 진주산업대학교 산업과학기술연구소 2003 산업과학기술연구소보 Vol.- No.10
In this paper, applications of adaptive fuzzy controller to position control of flexible beam are considered. When a flexible beam is rotated by a motor through the fixed end, transverse vibration may occur. The architecture and learning underlying adaptive networks based fuzzy inference system (ANFIS) is presented, which is a fuzzy inference system implemented in the framework of adaptive networks. By using a hybrid learning procedure, the proposed ANFIS can construct an input-output mapping based on both human knowledge and stipulated input-output data pairs. Therefor, a dynamic model for a flexible beam is derived, and then a comparative analysis was made with before learning and after learning adaptive fuzzy controller through an simulation. The results are presented to illustrate the advantages and improved performance of the proposed position control cver the after learning adaptive fuzzy controller.
해수에 의한 부식속도 데이터 베이스의 구축과 이용에 관한 연구
윤우생,한주철,박만호,송요승 한국항공대학교 1996 論文集 Vol.34 No.-
해수분위기에서 부식속도에 관한 데이터 베이스를 구축하였다. 본 데이터 베이스 system 프로그램은 커다랗게 두가지의 기능을 가지고 있는데 한가지는 데이터를 입력하는 기능이며 다른 한가지는 검색기능이다. 각각의 기능들은 몇개의 필드로 구성 되어 있다. 데이터베이스의 주된 필드들은 record, key-no, material type, material common name, environmental condition, corrosion rate등이다. 이중 중요한 연결고리용 필드는 각 데이터 들의 key-no로 사용하였다. We construct the Data-Base about corrosion rate of metal material in the sea water. In Data-Base system program have mainly 2 functions, one is data-input mode, the other is search mode. Each mode enclose some fields. Main fields are compose of record, key-no, material type, material common name, environmental condition, corrosion rate. Relation field is key-no of each data.
Cheul Han,Sung-Hyuk Choi,Young-Hoon Yoon,Young-Duck Cho,Jung-Youn Kim,Yun-Sik Hong,Sung-Woo Lee,Sung-Woo Moon,Han-Jin Cho,Young-Jin Cheon 대한외과학회 2012 Annals of Surgical Treatment and Research(ASRT) Vol.82 No.1
Purpose: Macrophage migration inhibitory factor (MIF) may serve as a general marker for systemic inflammation in septic and nonseptic acute critical illness. Additionally, our previous experiment has demonstrated that immunosuppressant Prostaglandin E2 (PGE2) lowered MIF levels and inhibited T-cells proliferation when compared to control levels. The addition of hypertonic saline (HTS) increased MIF production as compared with PGE2-stimulated T-cells in concordance with restore PGE2-suppressed T-cells proliferation. Generally, HTS has been well known for its anti-inflammatory effect so far. Therefore, the experiments were conducted to evaluate MIF after stimulating lipopolysaccharide (LPS) either in the presence or absence of HTS in monocyte, in response to early phase injury. Methods: Human acute monocytic leukemic cell line (THP-1) cells were cultured in RPMI media, to a final concentration of 1 × 106 cells/mL. The effect of HTS on LPS-induced MIF was evaluated in monocyte with 1 μg/mL LPS. HTS at 10, 20 or 40 mmol/L above isotonicity was added. MIF concentrations of the supernatant were determined by enzyme-linked immunosorbent assay, and cell lysates were used for Western blots analysis to determine the MIF expression. Results: MIF concentrations in the cell supernatant increased in LPS-induced cells compared to control cells. Also, levels of MIF protein expression were higher in LPS stimulating cells. However, the addition of HTS to LPS stimulated cell restored MIF concentrations and MIF expression. Conclusion: The role of HTS in maintaining physiological balance in human beings, at least in part, should be mediated through the MIF pathway.