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전체 차량 능동 현가 시스템을 위한 PID제어기의 설계
안세영(S.Y.Ahn),양상식(S.S.Yang) 한국자동차공학회 1994 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The destination of Vehicle Suspension system studies is to simultaneously improve ride comfort and handling safety that conflicts each other. In this paper, PID Controller is designed for Full vehicle active suspension system. Using a necessary information of output feedback state and output optimal control method, proper Sky-hook damper technique that have been applied to quarter car model is implemented to Full car model. Except for velocity feedback, absolute acceleration and displacement, relative velocity and displacement's usefulness is tested.From this result, PID controller is implemented. The improvements of the presented control strategy's effect are verified by computer simulation.<br/>
생체 역학적 분석에 의한 Compression Hip Screw의 디자인 요소에 대한 평가
문수정(S. J. Moon),이희성(H. S. Lee),권순영(S. Y. Kwon),이성재(S. J. Lee),안세영(S. Y. Ahn),이훈(H Lee) 한국정밀공학회 2004 한국정밀공학회 학술발표대회 논문집 Vol.2004 No.10월
At present, CHS(Compression Hip Screw) is one of the best prosthesis for the intertrochanteric fracture. There is nothing to evaluate the CHS itself with the finite element analysis and mechanical tests. They have same ways of the experimental test of the ASTM standards. The purpose of this study is to evaluate the existing CHS and the new CHS which have transformational design factors with finite element analysis and mechanical tests. The mechanical tests are divided into compression tests and fatigue test for evaluating the failure load, strength and fatigue life. This finite element method is same as the experimental test of the ASTM standards. Under 300N of compression load at the lag screw head. There are less differences between Group (5H, basic type) and GroupⅡ which has 8 screw holes. However, there are lots of big differences between GroupⅠ and GroupⅢ which is reinforced about thickness of the neck range. Moreover, the comparison of GroupⅢ and GroupⅣ shows similar tendency of the comparison of Group and GroupⅡ. The GroupⅣ is reinforced the neck range from GroupⅡ. After the experimental tests and the finite element analysis, the most effective design factor of the compression hip screws is the reinforcement of the thickness, even though, there are lots of design factors. Moreover, to unite the lag screw with the plate and to analyze by static analysis, the result of this method can be used with experimental test or instead of it.
채원석,박찬우,최완,안세영,노병석,이준우,Chae, W.S.,Park, C.W.,Choi, W.,Ahn, S.Y.,Roh, B.S.,Lee, J.W. 한국전자통신연구원 2012 전자통신동향분석 Vol.27 No.3
애플과 구글이 주도한 모바일 앱 장터에 새로운 변화가 찾아올 것으로 예상된다. HTML5(HyperText Mark-up Language 5)로 무장한 모바일 웹 앱의 등장은 모바일 인터넷 환경의 비약적인 발전과 고사양의 스마트기기 보급 확대에 힘입어 모바일 앱의 생태계를 재구성하고 있다. 본고에서는 애플리케이션 플랫폼의 발달 과정과 모바일 웹 환경에서의 HTML5의 역할에 대해서 알아보고 모바일 웹 프레임워크에 대해 정리하였다.
성기능 저하를 호소하는 성인남성에 대한 보원단(保元丹)의 효과 -IIEF와 Rigiscan을 이용한 발기능의 변화-
윤종현,이경진,이종훈,안세영,장원만,Yoon, J.H.,Lee, K.J.,Rhy, J.H.,Ahn, S.Y.,Jang, W.M. 대한한방내과학회 2001 大韓韓方內科學會誌 Vol.22 No.4
Objectives : To improve decreased erectile function as well as impotence, caused by physical fatigue, psychologic stress, too much alcohol and smoking, medication like antihypertensives, and geriatric change, by the prescription of BOWONDAN. Methods : 18 male-volunteers with decreased erectile function who are married 30 to 59 years old, were studied about the difference of a sexual function between before and after taking BOWONDAN 3 pills a day for a month. The results of IIEF(International Index of Erectile Function) and AVSS(Audio-Visual Sexual Stimulation) were reviewed statistically with paired samples t-test. Results : Based on the IIEF, 13(81.25%, p<0.01), 9(56.25%, p<0.05), 9(56.25%, p<0.05), 9(56.25%, p<0.05), 7(43.75%, p<0.05) and 15(93.75%, p<0.01) volunteers were improved in erectile function, orgasmic function, sexual desire, intercourse satisfaction, overall satisfaction and total score respectively, among 16 volunteers excluding 2 due to a false measurement. Through the Rigiscan of AVSS, 11 (68.75%, p<0.1)volunteers were improved in base tumescence, among 16 volunteers excluding 2 due to a false measurement. Conclusions : As a result of our work, BOWONDAN is expected to take effect to treat or improve both impotence and decreased erectile function.