Through high-resolution electron microscopy, stacking faults (SFs) due to Frank partial dislocations were found in an aluminum alloy following deformation with low strain and strain rate, while also remaining stable during artificial aging. Extrinsic stacking faults were found surrounded by dislocation areas and precipitates. An intrinsic stacking fault was found between two Guinier-Preston II ...

As individuals, organisations and indeed the world at large have become more dependent on computer-based systems, so there has been an ever-growing amount of research into means for improving the dependability of these systems. In particular there has been much work on trying to gain increased understanding of the many and varied types of faults that need to be prevented or tolerated in order t...

This paper presents a new approach for Loss of Excitation (LOE) faults detection in Hydrogenerators using Adaptive Neuro Fuzzy Inference System. The proposed scheme was trained by data from simulation of a 345kV system under various faults conditions and tested for different loading conditions. Details of the design process and the results of performance using the proposed technique are discuss...

As autonomous underwater vehicles (AUVs) enter operational service an assessment of their reliability is timely. Using the Autosub AUV as an example, several design issues affecting reliability are discussed, followed by an analysis of recorded faults. Perhaps contrary to expectations, failures rarely involved the autonomous nature of the vehicle. Rather, faults were typical of those that occur...

Asynchronous micropipelined designs are self-checking against permanent stuck-at faults making the circuits highly resistant against invasive fault attacks. A single transient fault, however, can result in a data token insertion or deletion which can cause a continuous stream of erroneous outputs that can be exploited by a malicious attacker. We propose a system level error detection method tar...

the main purpose of this study is landslide hazard assessment the ziarat watershed (golestan province) using information value and lnrf models within geographic information. at first stage, a landslide inventory map was prepared in the study area using earlier reports and aerial photographs, and a total of 50 landslides was mapped and out of which 35 (70%) were randomly selected for building la...

Deregulation, increased loads, and limited resources/rights-of-way available for the building of new transmission lines are routinely pushing modern power transmission networks to operating limits. New generations of microprocessor relays provide design opportunities that help stressed transmission networks meet protection requirements. To verify that increasingly complex microprocessor relays ...

Traditional tests for memories are based on conventional fault models, involving the address decoder, individual memory cells and a limited coupling between them. Built-in self-test (BIST) solutions for testing memories today incorporate hardware for test pattern generation and application for a variety of the algorithms. The NPSF fault model is recognized as a high quality fault model for memo...