Diffusion and the power spectral density of velocity fluctuations for electrons in InP by Monte Carlo methods

1979 ◽  
Vol 50 (1) ◽  
pp. 356-360 ◽  
Author(s):  
G. Hill ◽  
P. N. Robson ◽  
W. Fawcett
Keyword(s):  
Monte Carlo ◽  
Spectral Density ◽  
Power Spectral Density ◽  
Monte Carlo Methods ◽  
Velocity Fluctuations ◽  
Power Spectral

scholarly journals The Fractal Characterization of Mechanical Surface Profile Based on Power Spectral Density and Monte-Carlo Method

2018 ◽  
Vol 38 ◽  
pp. 04013
Author(s):  
Jingfang Shen ◽  
Yuqi Gong ◽  
Hang Meng ◽  
Jiajun Yang
Keyword(s):  
Monte Carlo ◽  
Fractal Dimension ◽  
Monte Carlo Method ◽  
Spectral Density ◽  
Rough Surface ◽  
Power Spectral Density ◽  
Estimation Methods ◽  
Density Method ◽  
Power Spectral ◽  
Spectral Density Method

The analysis of rough surface morphology plays an important role in the functional characteristics of the contact surface of mechanical parts. Fractal geometry method is more accurate and sensitive than classical statistics model. For fractal representation of rough surface, it is necessary to determine the proper fractal dimension calculation method. In this research, the effect of power spectral density method is studied based on Monte-Carlo method. The fractal dimensions are calculated, the theoretical and the calculated values are compared with paired samples. And the results are compared by non-parametric test. The result shows that power spectral density method has good characterization effect on fractal simulation contour curve. In addition, the precision of fractal dimension of power spectral density is related to fractal dimension of contour theory. The estimation methods of classical power spectral density have different application range.

Fuzzy Modeling of Multi-Degree-of-Freedom Power Spectral Density Systems

2009 ◽  
Vol 2 (1) ◽  
pp. 40-47
Author(s):  
Montasser Tahat ◽  
Hussien Al-Wedyan ◽  
Kudret Demirli ◽  
Saad Mutasher
Keyword(s):  
Spectral Density ◽  
Power Spectral Density ◽  
Fuzzy Modeling ◽  
Degree Of Freedom ◽  
Power Spectral
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