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배종수,박도영,박만구,Bae, Jong-Soo,Park, Do-Yong,Park, Man-Goo The Korea Society of Educational Studies in Mathem 2007 학교수학 Vol.9 No.4
본 연구는 초등학교에서의 탐구 중심 펜토마임 접근법을 이용할 때 곱셈의 개념에 대한 학생들의 기억의 보존에 관하여 조사를 하였다. 사전시험을 실시한 후 전통적으로 지도한 반과 펜토마임 접근법으로 지도한 반을 3개월 후에 어떻게 달라졌는지 알아보았다. 이 연구 결과 펜토마임 접근 방법을 사용한 반이 전통적인지도 방법을 이용한 반보다 곱셈의 개념을 보다 더 잘 기억하였고 수량적/기하적 설명을 하는데 있어서는 전통적인 지도 방법을 이용한 반과 비슷하였다. 이 연구는 특별히 초등학교 수준에서 탐구 지향적인 교수법과 같은 다양한 교수 전략을 사용할 때 수학적 개념의 이해의 유지에 어떤 영향을 주는지에 대한 시사점을 제공하였다. The purpose of this study was to investigate the effects of memory retention of mathematical concepts in multiplication in the inquiry-based pantomime instructions. Three months later after the pre-test, a comparison was made between traditional class (TC) and class with the inquiry-based pantomime (IP) approach in terms of students retention of mathematical understandings. Results of the study indicated that the If instructions promoted effective long-term retention of knowledge. We concluded that instructional strategies that promoted active engagement in learning using life examples and drawings produced effective long-term retention of knowledge.
연속파형 Doppler 초음파도를 이용한 우심실 수축기압의 측정 : 심도자술로 측정한 우심실압과의 비교 관찰
박원도(Won Do Park),조정휘(Chung Whee Choue),김권삼(Kwon Sam Kim),김명식(Myung Shick Kim),송정상(Jung Sang Song),배종화(Jong Hoa Bae) 대한내과학회 1988 대한내과학회지 Vol.35 No.3
N/A To predict right ventricular systolic pressure with great accuracy in patients with Doppler-detected tricuspid regurgitation, we tested thirty-two patients with a wide spectrum of cardiac lesions. The results were as follows; 1) 27 of the 32 patients had Doppler-detectable tricuspid regurgitation. 2) The correlation between Doppler-estimated and catheter-measured right ventricular systolic pressure was significant, (r=0.80, p<0.005). 3) There was a linear correlation between Doppler gradient alone (not adding right atrial pressure) and catheter-measured right ventricular systolic pressure(r=0.79, p<0.005). Continuous wave Doppler echocardiogaphy is an accurate noninvasive technique for the estimation of right ventricular systolic pressure in patients with a wide spectrum of cardiac lesions. This yielded information compatible with that obtained upon catherization.
무유도 로켓의 조준 장치를 이용한 영상 기반 이동 표적 정보 추정 기법 연구
송진모,이상훈,도주철,박태선,배종수,Song, Jin-Mo,Lee, Sang-Hoon,Do, Joo-Cheol,Park, Tai-Sun,Bae, Jong-Sue 한국군사과학기술학회 2017 한국군사과학기술학회지 Vol.20 No.3
In this paper, we present a method for estimating of position and velocity of a moving target by using the range and the bearing measurements from multiple sensors of aiming unit. In many cases, conventional low cost gyro sensor and a portable laser range finder(LRF) degrade the accuracy of estimation. To enhance these problems, we propose two methods. The first is background image tracking and the other is principal component analysis (PCA). The background tracking is used to assist the low cost gyro censor. And the PCA is used to cope with the problems of a portable LRF. In this paper, we prove that our method is robust with respect to low-frequency, biased and noisy inputs. We also present a comparison between our method and the extended Kalman filter(EKF).
裵鐘淳,權正烈,成道基 경상대학교 생산기술연구소 2003 工學硏究院論文集 Vol.19 No.-
PCPT and Vane test make it possible to get the soil parameter through a direct subsurface in-vestigation done by human-power because of its portability. But PCPT could have a different form and a cone interpenetration speed of the cone by person which possibly affects the cone in-terpenetration resistance and the vane test could be different in vane sizes or testing methods. Accordingly this model test is focused on observing the change characteristics of the undrained shear strength by changing a vane diameter and testing method through a vane and cone inter- penetration resistance by changing a cone interpenetration speed and an angle. The results of those tests are as follows. According to the vane test by the diameter, the undrained shear strength with 5cm diameter was 6.3times in the direct method and 8.4times in the repeated method. The undrained shear strength by the test of the same diameter was 1.5times in 2.5cm diameter and 2.1times in 5cm diameter by the repeated method. The cone interpenetration resistance is increasing as the cone angle increases. The increase degree of the cone interpenetration resistance in the cone interpenetration speed between 0.5 and lcm/sec. is very sharp. The cone interpenetratin speed between 15 and 2.0cm/sec is also similar to its increase degree between 0.5 and l cm/sec. In comparison of each test method, the undrained strength in the direct shear test and lab vane test appeared to be 1/26times and 5times for the undrained strength in the PCPT.