scholarly journals Software for the automatic scaling of critical frequency f0F2 and MUF(3000) F2 from ionograms appliedat the Ionospheric Observatory of Gibilmanna

2009 ◽  
Vol 47 (6) ◽  
Author(s):  
M. Pezzopane ◽  
C. Scotto
Keyword(s):  
Critical Frequency ◽  
Automatic Scaling

Automatic Scaling Procedures for Analog Design Reuse

2006 ◽  
Vol 53 (12) ◽  
pp. 2539-2547 ◽  
Author(s):  
Alessandro Savio ◽  
Luigi Colalongo ◽  
Michele Quarantelli ◽  
Zsolt M. Kovacs-Vajna
Keyword(s):  
Design Reuse ◽  
Analog Design ◽  
Automatic Scaling

ORIENTATION DYNAMICS OF MAGNETORHEOLOGICAL FLUIDS SUBJECT TO ROTATING EXTERNAL FIELDS

2001 ◽  
Vol 15 (06n07) ◽  
pp. 758-766 ◽  
Author(s):  
SONIA MELLE ◽  
MIGUEL A. RUBIO ◽  
GERALD G. FULLER
Keyword(s):  
Magnetic Field ◽  
Light Scattering ◽  
Simple Model ◽  
Critical Frequency ◽  
Optical Methods ◽  
Phase Lag ◽  
Rotating Magnetic Fields ◽  
Mr Fluids ◽  
Small Angle Light Scattering ◽  
The Magnetic Field

The formation and orientation of field-induced structures in magnetorheological (MR) fluids subject to rotating magnetic fields have been studied using two optical methods: scattering dichroism and small angle light scattering (SALS). The SALS patterns show how these chain-like aggregates follow the magnetic field with the same frequency but with a retarded phase angle for all the frequencies measured. Using scattering dichroism two different behaviors for both, dichroism and phase lag, are found below or above a critical frequency. Experimental results have been reproduced by a simple model considering the torques balance on the chain-like aggregates.

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