Dynamic Buffer Allocation for Conserving Disk Energy in Clustered Video Servers Which Use Replication

Author(s):  
Minseok Song
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):  

2012 ◽  
Vol 25 (3) ◽  
pp. 371-392 ◽  
Author(s):  
Leyla Demir ◽  
Semra Tunali ◽  
Deniz Tursel Eliiyi

1996 ◽  
Vol 3 (4) ◽  
pp. 56-71 ◽  
Author(s):  
E. Chang ◽  
A. Zakhor

2015 ◽  
Vol 6 (4) ◽  
pp. 60-69 ◽  
Author(s):  
Sławomir Kłos ◽  
Peter Trebuna

Abstract This paper proposes the application of computer simulation methods to support decision making regarding intermediate buffer allocations in a series-parallel production line. The simulation model of the production system is based on a real example of a manufacturing company working in the automotive industry. Simulation experiments were conducted for different allocations of buffer capacities and different numbers of employees. The production system consists of three technological operations with intermediate buffers between each operation. The technological operations are carried out using machines and every machine can be operated by one worker. Multi-work in the production system is available (one operator operates several machines). On the basis of the simulation experiments, the relationship between system throughput, buffer allocation and the number of employees is analyzed. Increasing the buffer capacity results in an increase in the average product lifespan. Therefore, in the article a new index is proposed that includes the throughput of the manufacturing system and product life span. Simulation experiments were performed for different configurations of technological operations.


2003 ◽  
Vol 15 (6) ◽  
pp. 1535-1551 ◽  
Author(s):  
Sang-Ho Lee ◽  
Kyu-Young Whang ◽  
Yang-Sae Moon ◽  
Wook-Shin Han ◽  
Il-Yeol Song

2000 ◽  
Author(s):  
Moreshwar Deshpande ◽  
C. D. Mote

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.


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