http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
무선채널환경에서 미상의 주파수 도약신호에 대한 도약정보 생성 기법
안준일,이치호,정운섭 한국전자파학회 2019 한국전자파학회논문지 Vol.30 No.3
A frequency hopping(FH) signal can change its carrier frequency during transmission and has spread-spectrum characteristics in these frequency bands. Therefore, FH signals are widely used in applications that require low-probability-of-intercept(LPI) and anti-jamming (AJ) abilities in wireless communication environments. In this study, the authors propose a method for generating hopping information (HI), which includes start time, dwell time, and hopping frequency for unknown FH signals. The proposed blind HI generation method produces signal detection information based on the spectrum data and then extracts HI using operational procedures for estimating the target FH signal’s status, such as appearance, maintenance, and termination. Further, simulation results demonstrate that the proposed method provides accurate HI without detection omissions for various FH signals.
지지면 변화에 따른 교각운동이 복횡근 두께와 균형능력에 미치는 영향에 관한 연구
안준일,김윤환,박종항,안미래,정연우,김태원,Ann, Jun-il,Kim, Yoon-hwan,Park, Jong-hang,Ann, Mi-rae,Jung, Yeon-woo,Kim, Tae-won 대한정형도수물리치료학회 2017 대한정형도수물리치료학회지 Vol.23 No.1
Purpose: The purpose of this study was to investigate the effect of transverse abdominis ratio and balance ability during bridge exercises on different support surface. Methods: The subjects were 20 students at G University. Ultrasound equipment was used to measure the transverse abdominisratio and the computerized balance measurement equipment was used to measure the balance ability before and after bridge exercises on different support surface. Results: Transverse abdominis ratio change between the groups was a significant difference only in the unstable support surface training group (p<.05). Normal standing eye close balance ability change between the groups was significantly different only in the unstable support surface training group (p<.05). The changes in the transverse abdominis ratio after 7 days of exercise and 14 days after exercise were significantly different between the groups (p<.05). Normal standing eye close balance ability showed a significant difference at 7 days after exercise and 14 days after exercise (p<.05). Conclusions: It is more effective to balance ability and ratio of the transverse abdominis when bridge exercises on an unstable support surface than to perform bridge exercises on a stable support surface. Therefore, we propose an effective program for patients with instability of the lumbar in clinical practice. bridge exercises on different support surface.
안준한(Junhan Ahn),고재필(Jaepil Ko),변혜란(hyeran Byun) 한국정보과학회 2001 한국정보과학회 학술발표논문집 Vol.28 No.1B
디지털 TV 가 실용화 됨에 따라 다양한 부가정보 서비스가 가능하게 되었다. 그러나 부가정보서비스를 효과적으로 사용하기 위해서는 전총적인 메뉴검색에 의한 관심객체의 부가정보 검색이 아닌 화면에서의 관심객체 선택만으로 부가정보를 표현할 수 있는 방법이 필요하다. 따라서 본 논문에서는 메뉴검색 없이 마우스 클릭만으로 관심 객체를 선택하고 선택된 객체에 대해 부가정보를 표현하는 시스템을 제안한다.
Silicon-on-glass 공정에서 접합력 균일도 향상을 위한 고정단 설계
안준은(Jun Eon An),박우성(Usung Park),임재욱(Jaewook Rhim) 대한기계학회 2016 대한기계학회 춘추학술대회 Vol.2016 No.12
In this paper, an anchor design which improves bonding strength uniformity is presented for the silicon-on-glass (SOG) process. The SOG process is widely used in conjunction with an electrode-patterned glass substrate as a standard fabrication process for forming high-aspect-ratio movable silicon microstructures in various types of sensors, including inertial and resonant sensors. In the proposed anchor design, a trench lies between and separates the silicon-bonded area and the electrode-contact area to prevent irregular bonding caused by the protrusion of the electrode layer beyond the glass surface. This technique can be conveniently adopted to almost all devices fabricated by the SOG process without the necessity of additional processes.
스핀 1/2 Heisenbeg 반강자성체에 대한 스핀파근사에 대하여
장광수,안준 嶺南大學校 基礎科學硏究所 1991 基礎科學硏究 Vol.11 No.-
We studied spin-1/2 Heisenberg antiferromagnet used by the linear spin-wave theory. As results, we got ground state energy and sublattice total spin for the several lattices, we compared to the results that are calculated by other theory. Also, we discussed linear spin-wave theory is useful to the analytically unsoluble Heisenberg models.