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Kim, Jong Kyo,Mark C. K. Yang 전북대학교 공업기술연구소 1984 工學硏究 Vol.15 No.-
2차 B-스플라인 함수를 이용하여 곡선조화를 자동적으로 행할 수 있는 방법과 그 응용에 대하여 고려하였다. 2차 B-스플라인 함수에 의한 곡선조화는 아직까지 시도된바 없으나, 원내의 곡선과 조화된 곡선간의 최대간격으로 정의되는, 주어진 오차한계 내에서 2차 B-스플라인 함수를 이용한 곡선조화를 행함으로써 원래의 곡선과 거의 일치하는 조화곡선을 아주 빠를 속도로 실현할 수 있었으며, 또한 이를 컴퓨터 애니메이션에 이용함으로서 상당히 빠른 속도의 dynamic graphic image를 실현할 수 있었다.
兩方向 AC 스윗치 制御의 2枝路 R-L竝列 回路의 定常狀態 解析
김종교,金煥溶 전북대학교 공업기술연구소 1980 工學硏究 Vol.10 No.-
The currents and load voltage of a two branch resistance-inductance(R-L) parallel circuit controlled by a bidirectional AC switch in the supply line are deduced. With two numerical examples, it has been shown that the effective power factor of the nonsinusoidal system can exceed that of the load to sinusoidal supply which represents a great improvement.
CMOS를 利用한 BDPC(Binary Decision Programmable Controller)의 制御部設計 및 Layout에 關한 硏究
김종교,宋義男,姜尙龍 전북대학교 공업기술연구소 1988 工學硏究 Vol.19 No.-
The computer aided design of a VLSI BDPC control part is presented. The design process from system specification to integrated circuit layout is carried out with the aid of speciallized cell library and computer system. These CAD tools support a Top-Down custom design methodology based on standard cell. ABDPC architecture is constructed, which is integrated using a 3 - μm CMOS cell library. BDPC control part simulation is carried out on gate-level logic simulation and compared with hardware experiment.
Digitally Programmable 코일 倦線機의 設計
김종교 전북대학교 공업기술연구소 1981 工學硏究 Vol.11 No.-
The elements made of coil-inductors, relays and transformers, etc. - are widely used in electric and electronic circuits. They are usually made by manual work of coil winding and taken much time to be made. In such a case, the coil wire is not winded uniformly and its turn number is not accurate. Therefore its characteristic is not excellent mostly. In this paper, a digitally programmable coil winder was designed, built, and tested. The satisfactory results obtained are as follow; a) The winding work of coil wire was accomplished according to the program. b) The time of coil winding was reduced remarkably. c) The uniform winding was accomplished. d) The coil turn number was completely accurate.
Lattice Filter를 사용한 Adaptive Noise Cancelling에 관한 연구
백홍기,김종교,배현덕 전북대학교 공업기술연구소 1984 工學硏究 Vol.15 No.-
The performance characteristic of an adaptive noise canceller(ANC) designed with a lattice filter is discussed. Its convergence speed and noise elimination rate are remarkably increased in compariosn with ANC using the time-delay-line filter. Moreover its stability is considerably improved and the way which an optimal order of the filter can be determined is found.
李門浩,김종교 全北大學校 1981 論文集 Vol.23 No.-
The field radiated by any small linear antenna (=nondirectional antenna) is distributed uniformly. This type of radiated pattern is desirable for many broadcasting applications, but it is undesirable for point-to point and preferred coverage applications. The field strength can be increased in selected directions by appropriately exciting several antennas simultaneously. That is applications in which it is desired to radiate most of the energy in one direction, for example toward population city.