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저탄소 Al-킬드강의 연속 어닐링에서 과시효 처리공정 중 탄화물 석출거동에 관한 연구
김성호,한봉희,박용범 대한금속재료학회(대한금속학회) 1986 대한금속·재료학회지 Vol.24 No.8
Precipitation behavior of carbides and texture change in a deep drawing sheet steel were studied by heat treating in a production scale continuous annealing line. Effect of annealing, quenching and overaging temperatures were investigated. The site of carbides precipitated during overaging treatments became larger and the Vickers hardness number decreased as the temperatures for quenching and overaging increased. After a overaging treatment at 350℃, finely dispersed plate-like carbides were precipitated in the matrix, white at overaging treatments of 400℃, carbides precipitated along grain boundaries in a form of film and within matrix in a form of coarse particles. The recrystallized structure showed a (111) type texture with the main component of (111) [1 ̄1 ̄2]. The(111) pole intensity and I_(222) I_(200) became higher as the annealing temperature increased within the α-phase region.
라플라스 스케일스페이스 이론과 적응 문턱치를 이용한 크기 불변 표적 탐지 기법
김성호,양유경,Kim, Sung-Ho,Yang, Yu-Kyung 한국군사과학기술학회 2008 한국군사과학기술학회지 Vol.11 No.1
This paper presents a new small target detection method using scale invariant feature. Detecting small targets whose sizes are varying is very important to automatic target detection. Scale invariant feature using the Laplacian scale-space can detect different sizes of targets robustly compared to the conventional spatial filtering methods with fixed kernel size. Additionally, scale-reflected adaptive thresholding can reduce many false alarms. Experimental results with real IR images show the robustness of the proposed target detection in real world.
부분 대역 재밍 환경에서 SFH(Slow Frequency Hopping) 위성 통신 방식을 사용하는 A-NED(Adaptive NED) 알고리즘 항재밍 성능 분석
김성호,신관호,김희중,김영재,Kim, Sung-Ho,Shin, Kwan-Ho,Kim, Hee-Jung,Kim, Young-Jae 한국군사과학기술학회 2010 한국군사과학기술학회지 Vol.13 No.1
As of today, Frequency Hopping techniques are widely used for over-channel interference and anti-jamming communication systems. In this paper, analysis the performance of robustness on the focus of some general jamming channel. In FH/SS systems, usually SFH(Slow Frequency Hopping) and FFH(Fast Frequency Hopping) are took up on many special communication systems, the SFH, FFH are also combined with a channel diversity algorithm likes NED(Normalized Envelop Detection), EGC(Equal Gain Combines) and Clipped Combines to overcome jammer's attack. This paper propose Adaptive-NED and shows A-NED will be worked well than the others in the some general jamming environments.
우리나라 유통산업의 경쟁력 제고를 위한 정보시스템 구축방안에 관한 연구-수입상품의 유통과정을 중심으로
김성호,Kim, Seong-Ho 한국정보통신집흥협회 1994 정보화사회 Vol.83 No.-
본 연구는 WTO체제 출범에 따라 급격하게 지각변동을 하고 있는 우리나라 유통산업의 경영정보시스템 구축을 위한 접근방법을 이론적으로 모색하는데 목적이 있다. 특히 최근 시장개방의 추세에 따라 그 취급상품의 종류 및 서비스 수준 등에 있어 우리나라 유통시장을 폭넓게 잠식하고 있는 수입상품의 유통과정을 중심으로 접근해본다.