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통합교육 환경의 말더듬 학생에 대한 초등학교 교사의 인식 연구
안종복 ( Jong Bok Ahn ) 한국특수아동학회 2013 특수아동교육연구 Vol.15 No.1
The perpose of this study was to illustrate the elementary school teachers` recognition toward stuttering students who were studying in the inclusive environment. This study was performed by survey method. Two hundred and nine elementary school teachers who were teaching at the three provinces were participated for this study. t-test, ANOVA, correlation, and regression were utilized for this study. The results of this study were that: (a) age, educational background, special education training, and living region were important factors to the teachers` recognition toward stutter itself; (b) the living region was important factor to the teachers` recognition toward stuttering students; (c) age, educational background, special education training, and teaching career were important factors to the teachers` recognition toward teachers` role; (d) the educational background was important factor to the teachers` recognition toward supporting system for the stuttering students; and (e) there was high correlation between the teachers` recognition and role. Therefore this study concluded that the teachers indicated the necessary of the supporting system for the stuttering students in the inclusive environment.
안종복(Jong-Bok Ahn) 산업기술교육훈련학회 2011 산업기술연구논문지 (JITR) Vol.16 No.3
The flow meter detects the vortex made by the bluff body which is inside of the pipe that has flowing fluids and calculate the velocity of the fluid. The sensor was manufactured using sensor body and piezo ceramics as the result of the creative design in engineering. The preexistence was analyzed and considered manufacture process and experiment. The sensor body was made after modifying sensor housing and transmitter. Using an elastic tape, copper foil and electric wire, first experiment was conducted. After holding with a vise, impulse was given to the transmitter and signal was captured. Scale is the 100㎳/dev for horizontal direction, 100㎷/dev for vertical direction. And the signal of the preexistence and proto-type was similar with its amplitude and period. Also, through frequency analysis, piezo ceramics’ thickness was selected and it can reduce the cost and error from development step. The experiments include impulse and periodic impulse test.
안종복(Jong-Bok Ahn),박철원(Chul-Won Park) 한국조명·전기설비학회 2018 조명·전기설비학회논문지 Vol.32 No.6
This paper deals with fault location of GIS substation using artificial neural network. First, the configuration analysis of the target GIS substation and the operation status of the circuit breaker and the IED are examined. Using Weka software, we construct and learn an artificial neural network to determine the fault location of GIS substation, and check the result of fault location. The results of this study can be used for fault restoration and substation reconstruction in future.
컴솔 멀티피직스를 이용한 양극형 1회선 HVDC의 전계 해석
안종복(Jong-Bok Ahn),박철원(Chul-Won Park) 한국조명·전기설비학회 2018 조명·전기설비학회논문지 Vol.32 No.9
Recently, there has been an increasing interest in HVDC(High Voltage Direct Current) transmission as a core technology required for a Super grid. Compared with HVAC(High Voltage Alternating Current) transmission, HVDC transmission has no loss due to skin effect and reactance components, so long-distance power transmission is possible, and asynchronous power system can be interconnected. Also, in case of a DC electric field, there is no induction phenomenon. However, the human body may cause irritation such as electrostatic discharge and discomfort, therefore electric field analysis through simulation is absolutely necessary. In this paper, electric field simulation was performed using COMSOL Multiphysics, a multi-physics analysis program, for a Bipolar single line DC ±400kV, DC ±500kV, DC ±800kV model. In order to verify the validity of the simulation, comparative analysis with the related literature was conducted.