(ABSTRACT) Physical design for testability (PDFT) is a strategy to design circuits in a way to avoid or reduce realistic physical faults. The goal of this work is to define and establish a specific methodology for PDFT. The proposed design methodology includes techniques to reduce potential bridging faults in complementary metal-oxide-semiconductor (CMOS) circuits. To compare faults, the design...

For obtaining a zero defect level, a high fault coverage with respect to the stuck-at fault model is often not sufficient as there are many defects that show a more complex behavior. In this paper, a method is presented for computing the occurrence probabilities of certain defects and the realistic fault coverage for test sets. The method is highly efficient as a pre-processing step is used for...

quantum dot cellular automata (qca) is one of the important nano-level technologies for implementation of both combinational and sequential systems. qca have the potential to achieve low power dissipation and operate high speed at thz frequencies. however large probability of occurrence fabrication defects in qca, is a fundamental challenge to use this emerging technology. because of these vari...

We introduce a framework for control-reconfiguration in discrete event systems that performs fault-detection and then reconfigures the control to ensure that certain desired specifications are met. The controlled system has separate specifications prior to a fault versus after a fault (to allow for any changes in the specification owing to the occurrence of a fault). Prior to the occurrence of ...

In this paper, we consider a load-balancing process allocation method for fault-tolerant multicomputer systems that balances the load before as well as after faults start to degrade the performance of the system. In order to be able to tolerate a single fault, each process (primary process) is duplicated (i.e., has a backup process). The backup process executes on a different processor from the...

The design & development of a fuzzy logic controller using UPFCs to damp out the oscillations in FACTS based integrated multi-machine power system when faults takes place at different buses (one fault at a time) is presented in this paper. The multi-machine system consists of 3 generators, 3 transformers, 9 buses, 4 loads & 2UPFCs. 3 Simulink models are developed with & without the hybrid contr...

Transient stability of a power system is concerned with the system’s ability to remain in synchronism after the disturbance is cleared. Occurrence of a fault in a power system causes transients. The disturbances subjected to the system may be occurrence of fault, sudden change in load etc. This paper describes the improvement of transient stability with phase shift insertion by phase shifting t...

Self-repairing system is alternative for fault tolerant systems. They lose efficiency when the circuit size increases, due to the extra hardware. In existing system, they used four spare cells for one working cell for cell replacement.In proposed system, there is no need to use spare cells permanently.In proposed system, we have taken RISC processor as a working cell for our consideration. BIST...

Process allocation is important for fault-tolerant multi-computer systems since it directly aaects the performance and dependability of the system. In this paper , we consider load-balancing process allocation for fault-tolerant systems that balances the load before as well as after faults start to degrade the performance of the system. We show two schemes to tolerate multiple faults in the pas...