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구도형,김기호,이장한 한국자료분석학회 2019 Journal of the Korean Data Analysis Society Vol.21 No.3
The obese with binge eating has more biased attention to food than the obese without binge eating, which causes a risk of food cravings and binge eating problems. A direct treatment of the automatic attentional bias on high-calorie food cues is expected to reduce the attentional bias and binge eating. The goal of this study is to examine the effect of attentional bias modification (ABM) training, which is a method of training that disengage attentional bias for high-calorie food cues. 346 participants were divided into 25 obese female with binge eating and 25 obese female without binge eating, respectively, based on BMI, body fat percentage and binge eating scale. Each group completed self-report questionnaires, free viewing task, gap-overlap task before and after ABM training. And also, food intake was measured before and after training. The results showed that only obese without binge eating showed a significant decrease in attentional bias for high-calorie food cues after ABM training. In addition, the obese with binge eating consumed more high-calorie foods than low-calorie foods after ABM training. These results suggest that the obese with binge eating have to conduct repeated ABM training because their attentional bias and binge eating problems are more serious than the obese without binge eating.
동축 구 사이의 자성 유체의 Couette 유동에 관한 연구
구도연(D.Y.Koo),하옥남(O.N.Ha),전운학(U.H.Chun) 한국자동차공학회 1994 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1994 No.11_1
Torque characteristics are investigated experimentally for spherical couette flow. Torque measurement was obtained for the situation where the inner sphere was rotating while the outer sphere was kept stationary. The magnetic field was imposed on the fluid, using a bar magnetic which was situated in the inner sphere.<br/> In this study, there are two distinct regions before the onset of the turbulence flow regime.<br/> In the laminar flow regime the torque increases when the magnetic field is applied, indicating an increases of the critical Reynold number. However in the laminar trasition regime, the effect of magnetic field on the torque characteristics decreases as the rotation rate increases. The critical Reynolds number is observed to shift toward higher values.<br/>