Survivable systems are modelled abstractly as collections of services supported by any of a set of configurations of components. Reconfiguration to restore services as a result of component failure is viewed as a kind of “flow” analogous to information flow. We apply Meadows’ theorem on datset aggregates to characterize the maximum safe flow policy. For reconfiguration, safety means that servic...

Reconfiguration is the action of modifying the operation or behaviour of a system, a network node, or functional entity when specific events take place. This paper describes an integrated control and management plane framework for end-to-end reconfiguration, and maps this model to a Beyond 3G mobile network architecture. Emphasis is provided on the reconfiguration actions that take place when a...

High-speed reconfigurable processors have been developed in recent years: they are DAP/DNA chips and DRP chips [1][2]. These devices can be changed from one context to another context at every clock cycle in a few nanoseconds. However, their die size limits the number of reconfiguration contexts of currently available DAP/DNA and DRP chips to 4–16. In contrast, optically reconfigurable gate arr...

Prion diseases, like Alzheimer's disease and Parkinson disease, are rapidly progressive neurodegenerative disorders caused by misfolding followed by aggregation and accumulation of protein deposits in neuronal cells. Here we measure intramolecular polypeptide backbone reconfiguration as a way to understand the molecular basis of prion aggregation. Our hypothesis is that when reconfiguration is ...

Supervisory control reconfiguration can handle the uncertainties including resource failures and task changes in discrete event systems. It was not addressed to exploit the robustness of closed-loop systems to accommodate some uncertainties in the prior studies. Such exploitation can cost-efficiently achieve reconfigurability and flexibility for real systems. This paper presents a robust reconf...

Recent in-memory database systems leverage advanced hardware features like RDMA to provide transactional processing at millions of transactions per second. Distributed transaction processing systems can scale to even higher rates, especially for partitionable workloads. Unfortunately, these high rates are challenging to sustain during partition reconfiguration events. In this paper, we first sh...

A prognostic system makes it possible to anticipate loss of functionality before it occurs with sufficient lead time to take actions that mitigate the impact of this loss. We focus on the forms of mitigation within the flight vehicle that influence the operational dynamics but do not directly amend the mission plan. Thus, we focus upon the reconfiguration of the feedback control strategy for th...

To date, some types of Optically Reconfigurable Gate Arrays (ORGAs) have been developed to realize capabilities of rapid reconfiguration with numerous reconfiguration contexts. However, the layout style requires a shield against the reconfiguration light irradiation to guard transistors that constitute the gate array. This paper presents a shield effect for a circuit that is implemented on a ga...

Context -Aware Reflective Middleware (CARM), which supports application reconfiguration, has been an appealing technique for building Distributed Real-time and Embedded (DRE) systems as it can adapt their behaviors to changing environments at run time. However, existing CARM frameworks impose dependence restrictions and reconfiguration overhead, which makes the reconfiguration time of these fra...

Considering nowadays FPGAs, the reconfiguration time is a non-negligible element of reconfigurable computation. Moreover, run-time environments that ignore the reconfiguration time can quickly lack applicability. Thus, methods to respect this additional time are required. Looking for suitable analogies in already evaluated fields seems to be reasonable and shall be investigated in this work. In...