The first part of this paper presents a new accurate approach for fault classification for high speed protective distance relaying using a new algorithm of ANN called Probabilistic Neural Network (PNN). This approach is based on phasor measurements of phase voltages and line currents as well as zero sequence currents. A comparison between the applied algorithm and other algorithms that have bee...

We analyze the effect of errors in branch predictors, a representative example of speculative processor subsystems, to motivate the necessity for fault tolerance in such subsystems. We also describe the design of fault tolerant branch predictors using general fault tolerance techniques. We then propose a fault-tolerant implementation that utilizes the Finite State Machine (FSM) structure of the...

in this study, a researching program is conducted by cyclic triaxial test to determine the post-cyclic behavior of bushehr carbonate sand retrieved from the north of the persian gulf, under anisotropic consolidation at 200 kpa confining pressure. the article compares the post-cyclic monotonic strength and excess pore water pressures generated after the test with the pre-cyclic monotonic results...

This study presents fault diagnosis of low speed bearing using support vector machine (SVM). The data used in the experiment was acquired using acoustic emission (AE) sensor and accelerometer. The aim of this study is to compare the performance of fault diagnosis based on AE signal and vibration signal with same load and speed. A low speed test rig was developed to simulate various defects with...

In modern digital power system protection systems, statistical coefficients technique is recently used for fault analysis. A correlation technique is developed for faults detection and discrimination. The proposed technique is able to accurately identify the condition of phase(s) involved in all ten types of shunt faults that may occur in extra high-voltage transmission lines under different fa...

This paper has made a qualitative and quantitative analysis by establishing the tunnel fault tree and giving the minimal cut sets of the faults in tunnel, and tested the data in tunnel combined with artificial neural network. The fault detection mechanism in this article has been simulated by MatLab and processed a lot of the actual data through the tunnel operating history. Experimental result...

The need for comparable loading histories for seismic acceptance testing is becoming more prevalent as (a) performance-based design, which requires quantification of performance, is becoming a more widely accepted alternative to routine code design, (b) more and more innovative performance enhancement systems (e.g., buckling restrained braces) hit the engineering market, and (c) globalization b...

[1] We perform two-dimensional dynamic models of strike-slip faults with a change in strike (a bend) over multiple earthquake cycles to examine the long-term effects of nonplanar fault geometry. A viscoelastic model (a proxy for off-fault deformation and tectonic loading) is introduced for the interseismic process to avoid pathological stress buildup around the bend. A finite element method wit...

This study investigated, in normotensive adolescents, three accepted risk factors for essential hypertension (EH): stress, dietary salt, and parental history (genetic risk). The cardiovascular response to mental stress was evaluated before and after salt loading in eight subjects without, and in seven with, a family history (FH) of EH. The effect of salt loading on the FH positive group was to ...