This chapter introduces the concepts of component and process variability, and the allocation of component tolerances.
The aims of this chapter are to introduce the concepts of component and process variability and the allocation of component tolerances.
It is then noted that this theorem may be adapted to apply to any partial ordering of component criticalities, thereby yielding a result that may be used in tandem with algebraic arguments to identify the optimal allocation of component reliabilities in systems which fail to satisfy the sufficient conditions for overall optimality given in the main result.
[El-Neweihi, E., Proschan, F., Sethuraman, J., 1986. Optimal allocation of components in parallel-series and series-parallel systems. Journal of Applied Probability 23, 770 777] and by Boland et al.
More precisely, if VG, VLDH, VACS and VM are the cell volume occupied by glycolytic enzymes, LDH, ACS and mitochondria, respectively, then VG+VLDH+VACS+VM≤VATP, where VATP is the total cell volume available for the allocation of components of the ATP producing pathways.
The IC was defined as a nearly chromatin-free channel system starting at nuclear pores and pervading between the higher-order CDC network that serves as a system for the allocation of components needed within the PR, as well as for the guided diffusion of macromolecules [ 29- 31].
More precisely, if V G, V L and V M are the cell volume occupied by glycolytic enzymes, LDH and mitochondria, respectively, then (5) where V ATP is the total cell volume reserved for the allocation of components of the ATP producing pathways.
A safety critical system requires an automated and optimal allocation of redundant component instances to its existing components, including: 1) the selection of components (locations) on which the redundancy must be applied, 2) how many redundant component instances of varying reliability and cost should be allocated to each selected location.
The key issue in an assembly system is the coordination of the components, while the key issue in a distribution system is the allocation of the component among the products.
In most of studies in terms of allocation of redundant components, it is assumed that the components are either non-repairable or repairable.
Having shown that the desired reliability was achievable through some combination of components, a dynamic programming analysis was undertaken to assess the ideal allocation of parallel components.
