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Fuzzy Logic Modifier를 가진 Pl 제어기에 의한 스위치드 리럭턴스 전동기의 속도제어
김보형,김재문,원충연,Kim, Bo-Hyung,Kim, Jae-Mun,Won, Chung-Yuen 한국전기전자학회 1998 전기전자학회논문지 Vol.2 No.2
In this paper, reliable switched reluctance motor(SRM) drive system and 4-rule based fuzzy logic modifier(FLM) of the conventional PI controller are presented. The i80C196KC, low-cost one-chip microcontroller is used for designing SRM drive controller which include the speed controller and the starting sequence. The fuzzy logic modifier which exhibits a stabilizing effects on the closed-loop system, has good robustness regarding the improperly tuned PI controller. The simulation and experimental results are performed to verify the capability of proposed control method on 6/4 salient type SRM. 본 논문에서는 신뢰할 수 있는 SRM 구동시스템과 기존의 PI제어기에 4개의 규칙으로 이루어진 FLM(Fuzzy Logic Modifier)를 제안하였다. 저가격 원칩 마이크로컨트롤러인 인텔사의 i80C196KC는 속도 제어기와 초기 기동을 포함한 SRM 구동 컨트롤러를 설계하기 위해 사용되었다. 폐루프 시스템에 안정된 효과를 보이는 FLM을 Pl 제어기에 추가함으로써 부적절하게 설정된 PI 제어기의 이득값에 대해 강인한 제어성능을 보인다. 시뮬레이션 및 실험결과는 6/4극 SRM에 대해 제안된 제어 방식이 우수함을 보여준다.
부인두강에 발생한 제 2새열낭종 1례 - 편도주위농양으로 오인된 증례 -
김보형,류재민,정순섭,김요한,Kim, Bo-Hyung,Ryu, Jae-Min,Chung, Soon-Sup,Kim, Yo-Han 대한기관식도과학회 2002 大韓氣管食道科學會誌 Vol.8 No.2
Branchial cleft cysts are most common neck masses in adults. Most are second branchial cysts, which occur in the neck, anterior to sternocleidomastoid muscle at the mandibular angle. Rarely these cysts may be present in the parapharyngeal space. We report a case of a second branchial cleft cysts in the parapharyngeal space of 32-year-old female, which was misdiagnosed as peritonsillar abscess. It was excised via transoral and transcervical approach.
cis-Diamminedichloroplatinum(Ⅱ)이 흰쥐의 기관섬모상피내 점액질 조성에 미치는 영향
김보형,강성호,김동욱,Kim, Bo-Hyung,Kang, Sung-Ho,Kim, Dong-Wook 대한기관식도과학회 1999 大韓氣管食道科學會誌 Vol.5 No.2
Background : cis-Diamminedichloroplatinum(Ⅱ)(cis-platin) has been exhibited similar to bifunctional alkylating agents in the cell and known as an effective anticancer drug. Although this agent is very beneficial to the cancer patients, it may also damage to the normal cell. Many side effects were developed. Objectives : This experiments was undertaken to pursue the effect of cis-Platin on the mucous variation of the trachea. Materials and Methods : The male of Sprague-Dawley strain were used as and experimental animals. The experimental animals were killed at 1, 3 days and 1, 2 and 3 weeks after the third injection of cis-Platin was administered 1.5mg/kg to intraperitoneal injection at once a week for three weeks. The trachea was fixed to neutral formaline and stained with alcian blue(pH 1.0)-PAS, alcian blue(pH 2.5)-PAS double stains and these preparation observed with light microscope. Results : 1. In the trachea stained with alcian blue(pH 2.5)-PAS double stain, the epithelial cells were constricted in the 1 week, In the 1st day, 3rd day and 1st week, acidic mucopolysaccharide was increased but in the 2nd week, neutral mucopolysaccharide was increase. 2. In the trachea stained with alcian blue(pH 1.0)-PAS double stain, the 1st and 3rd day exhibited sulfa mucopolysaccharide with moderately or weakly positive reaction. In the 1st week the sulfa mucopolysaccharide with strongly positive reaction was increased. In the 2nd and 3rd week, the sulfa mucopolysaccharide with weakly positive and non-sulfa or neutral mucopolsaccharide with negative reaction were modified. Conclusion : It is consequently suggested that cis-Platin induces reversible toxic damage to tracheal cells including goblet cell.
김보형(Bohyung Kim),이상열(Sangryol Lee) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The higher automobile control devices was developed with the development of industrial technology. Especially, CAN NETWORK has accelerated automobile systems in recent years. In this papers, the new technology automobile is focused with user's demands according to car tuning trend. The main parts of new car are evaluated for automobile tuning, namely, ECU maping technology. Already this new technology are progressing and grafting for high valued technology in the European countries.