Saving disk energy in video servers by combining caching and prefetching

2014 ◽  
Vol 10 (1s) ◽  
pp. 1-21 ◽  
Author(s):  
Minseok Song ◽  
Yeongju Lee ◽  
Euiseok Kim
Keyword(s):  
Video Servers ◽  
Disk Energy

Load splitting in clusters of video servers

2012 ◽  
Vol 35 (8) ◽  
pp. 993-1003 ◽  
Author(s):  
Luis J. de la Cruz Llopis ◽  
Andrés Vázquez Rodas ◽  
Emilio Sanvicente Gargallo ◽  
Mónica Aguilar Igartua
Keyword(s):  
Video Servers

Cost analyses for VBR video servers

1996 ◽  
Vol 3 (4) ◽  
pp. 56-71 ◽  
Author(s):  
E. Chang ◽  
A. Zakhor
Keyword(s):  
Video Servers ◽  
Cost Analyses ◽  
Vbr Video

Study of In-Plane Motions in a Thin Rotating Disk

2000 ◽  
Author(s):  
Moreshwar Deshpande ◽  
C. D. Mote
Keyword(s):  
Critical Speed ◽  
Natural Frequencies ◽  
Rotation Speed ◽  
Rotating Disk ◽  
Travelling Wave ◽  
Linear Strain ◽  
Strain Measure ◽  
Nodal Diameter ◽  
Plane Oscillations ◽  
Disk Energy

Abstract A model for the in-plane oscillations of a thin rotating disk has been derived using a nonlinear strain measure to calculate the disk energy. This accounts for the stiffening of the disk due the radial expansion resulting from its rotation. The corresponding non-dimensionalized natural frequencies are seen to depend only on rotation speed and have been calculated. The radially expanded disk configuration is linearly stable over the range of rotation speeds studied here. The sine and cosine modes for all nodal diameters couple to each other at all nonzero rotation speeds and the strength of this coupling increases with rotation speed. This coupling causes the reported frequencies of the stationary disk to split. The zero, one and two nodal diameter in-plane modes do not have a critical speed corresponding to the vanishing of the backward travelling wave frequency. The use of a linear strain measure in earlier work incorrectly predicts instability of the rotating equilibrium and the existence of critical speeds in these modes.

Video servers take root

IEEE Spectrum ◽  
1995 ◽  
Vol 32 (4) ◽  
pp. 66-69 ◽  
Author(s):  
K. Natarajan
Keyword(s):  
Video Servers
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