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배주현 ( Ju-hyun Bae ),성예원 ( Yae-won Sung ),육예은 ( Ye-eun Yuk ),장윤희 ( Yun-hui Jang ) 한국정보처리학회 2022 한국정보처리학회 학술대회논문집 Vol.29 No.2
반려동물 시장 및 동물 의료분야의 성장, 동물병원 이용 과정 개선의 필요성으로 반려동물 질병의 시작부터 끝까지 전 과정을 함께하는 원스탑 모바일 애플리케이션을 개발하였다. 증상으로 예상 질병을 진단하는 머신러닝 모델과 자연어 문장을 인식하는 딥러닝 챗봇으로 사용자가 편리하게 반려동물 이상 증상에 대한 예상 질병을 챗봇으로 상담할 수 있도록 구현하였다. 챗봇 시스템을 기반으로 ‘예상 진단’, ‘질병백과’, ‘문진표’, ‘동물병원’ 기능을 추가하여 일관된 기능들로 유기적인 서비스를 구성하였다.
배주현(Ju-Hyun Bae),고나영(Na Young Ko),이현미(Hyun Mee Lee) 한국안광학회 2019 한국안광학회지 Vol.24 No.3
Purpose: The purpose of this study is to investigate the possibilities of producing contact lenses with better properties than those made produced by using conventional methods, by using a new room-temperature (20~30℃) polymerization method and without conventional thermal polymerization. Methods: The contact lens was prepared by controlling the amounts of catalyst N,N,N,N-tetramethyl-ethylenediamine (TMEDA) volume (3 ~ 9 μl) and temperature (20~30℃), respectively. The same reactants were used for both the thermal polymerization and room-temperature polymerization; the contact lens properties such as transmittance, water content, refractive index, wettability, and oxygen permeability were measured and compared. Results: The transmittance of the contact lens was the highest at 25℃. The contact lens showed good optical properties when 3 μl and 5 μl of catalyst were used. The physical properties of the polymerized lens at room temperature were improved regardless of the amount of catalyst under the same conditions, compared with the thermally polymerized lens. When the amount of TMEDA was 5 μl, the polymerization time was reduced, and physical properties such as water content, oxygen permeability, and wettability were significantly improved. Conclusions: Polymerization conditions with optimum physical properties were obtained by room-temperature polymerization, and the possibility of manufacturing high functionality contact lenses was confirmed.
조종날개가 장착된 탄도수정탄의 자이로안정성 및 항력 특성 연구
배주현,Bae, Ju Hyun 한국군사과학기술학회 2017 한국군사과학기술학회지 Vol.20 No.3
This paper describes the gyroscopic stability and the drag characteristics of the smart munition with a course correction fuze(CCF). A ballistic analysis was conducted to figure out the effect of the canards on the gyroscopic stability of the projectile. The analysis used the commercial ammunition performance evaluation software: Projectile Design and Analysis System(PRODAS). In particular, we compared the PRODAS analysis results to real field test results to investigate the influence of the CCF mounted projectile. In addition, some ballistic simulations were carried out to provide the conditions suitable for wind tunnel tests. Experimental results show that the added drag force by the canards is almost uniform regardless of the Mach number when the projectile is at the normal position where the angle of rotation and the angle of attack are both 0 degrees. However, as the angle of attack of the projectile increases, the additional drag force depends on the deflection of the canards.