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강명화,김두철 濟州大學校 師範大學 科學敎育硏究所 1994 科學敎育 Vol.11 No.1
Difffraction patterns on the variation of the width b and the separation d of the double slit have been simulated by a computer. As the slit-width b is kept constant and the slit-separation d is varied, the scale of the interference pattern varies. but that of diffraction pattern remains the same: As the slit-separation d increases by the slit-width b times, the number of fringe of interference is 2n+1, n is d/b. However as the slit-separation d is kept constant, and the slit-width b is varied, the scale of the interference pattern and that of diffraction pattern varies: In case of b≤0. 1d the intensity between fringes of interference is nearly equal and this result agrees with that of Young's double-slit experiment.
Consumption of Health Foods: Through the Investigation of the Cereal Grain Industry
( Nyeong Seon Son ) 한국산업조직학회 2014 한국산업조직학회 정책세미나 논문집 Vol.2014 No.1
This paper investigates whether consumer characteristics are related to their healthy choices in the cereal grain industry. In particular, we consider which consumer receives more substantial influence from the media and, in turn, increases healthier type of products (i.e., mixed grain). The empirical results suggest that the higher consumers have education levels, the less they are affected by the media. Finally, we produce many public policy and marketing implications about health products and agriculture.
Establishment Dynamics and Productivity: Is the ICT Industry Improving?
Nyeong Seon Son 서울대학교 경제연구소 2021 Seoul journal of economics Vol.34 No.3
The Korean ICT industry has recently experienced low productivity growth. This study examines this decline of labor productivity growth using the perspective of establishment dynamics. The establishment dataset covering one or more employees shows that the ICT industry has higher entry and exit rates than the other sectors. However, active reallocation in the ICT industry has slowed and the contribution of entrants to productivity growth has rapidly declined, especially in its service sector. Results show that the slowdown of establishment dynamics is related to the decline in productivity growth in the ICT industry.