The energy-density spectrum of vacuum in prismatic cavities

1989 ◽  
Vol 142 (4-5) ◽  
pp. 194-199 ◽  
Author(s):  
A. Sarmiento ◽  
S. Hacyan ◽  
G. Cocho ◽  
F. Soto ◽  
C. Villarreal
Keyword(s):  
Energy Density ◽  
Density Spectrum

Energy-density spectrum of the vacuum around a cosmic string

1988 ◽  
Vol 38 (4) ◽  
pp. 1331-1333 ◽  
Author(s):  
A. Sarmiento ◽  
Ş. Hacyan
Keyword(s):  
Energy Density ◽  
Cosmic String ◽  
Density Spectrum

Fault Diagnoise of Rolling Bearing Based on EEMD and Instantaneous Energy Density Spectrum

2011 ◽  
Vol 97-98 ◽  
pp. 741-744
Author(s):  
Jin Ming Lu ◽  
Fan Lin Meng ◽  
Hua Shen ◽  
Li Bing Ding ◽  
Su Nin Bao
Keyword(s):  
Energy Density ◽  
Rolling Bearing ◽  
Ensemble Empirical Mode Decomposition ◽  
Intrinsic Mode Functions ◽  
Density Spectrum ◽  
Hilbert Spectrum ◽  
Mode Decomposition ◽  
Diagnosis Method ◽  
Inner Race ◽  
Instantaneous Energy

A new fault diagnosis method for rolling bearing based on ensemble empirical mode decomposition (EEMD) and instantaneous energy density spectrum is proposed here. The intrinsic mode functions (IMFs) generated by EEMD can alleviate the problem of mode mixing and approach the reality IMFs. The characteristic frequencies were found in the instantaneous energy density of Hilbert spectrum. The effectiveness of this method was demonstrated by analysis the vibration signals of a rolling bearing with inner-race fault.

A MATHEMATICAL MODEL FOR THE DECAYING ENERGY DENSITY SPECTRUM IN A CONVECTIVE BOUNDARY LAYER: ISOTROPIC CASE

2002 ◽  
Vol 4 (1-2) ◽  
pp. 6
Author(s):  
A. Goulart ◽  
Gervasio Annes Degrazia ◽  
Domenico Anfossi ◽  
Marco T. Vilhena ◽  
Claudia Rejane Jacondino de Campos
Keyword(s):  
Boundary Layer ◽  
Mathematical Model ◽  
Energy Density ◽  
Convective Boundary Layer ◽  
Isotropic Case ◽  
Convective Boundary ◽  
Density Spectrum

Energy-Density Spectrum of the Electric Field in a Turbulent Plasma

1972 ◽  
Vol 5 (4) ◽  
pp. 1813-1819 ◽  
Author(s):  
S. H. Kim ◽  
H. E. Wilhelm
Keyword(s):  
Energy Density ◽  
Electric Field ◽  
Turbulent Plasma ◽  
Density Spectrum
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