Roller bearing is one of the most widely used and critical elements in rotating machinery. In consequence, bearing fault diagnosis in machines, as well as to discriminate the different fault conditions have been a great interest. In this study, firstly, analytical model of a shaft-ball bearing system is developed. The shaft is assumed to be perfectly rigid and uniform, and supported by two radi...

the idea of this paper is designing an automatic fault detection system based on fuzzy logic, therefore two signals of pmsm in fault condition are analyzed for inter turn fault detection: current and torque. in this fault type there is some distortion in these signals, but it is not good enough to detecting with fuzzy logic solely, so with combination of wavelet transform and fcm a new method f...

Abstract. High-performance interconnection networks are used to achieve the maximum performance in clusters of PCs. The fat-tree topology has raised in popularity in the last few years. Routing and fault-tolerance are two important design issues of these networks. This paper presents a dynamic fault-tolerant routing strategy for fat-trees without additional hardware, supporting a reasonable num...

The Palghar region (north Maharashtra, India), located in the northwestern part of stable continental India, experienced a low magnitude earthquake swarm, which was initiated September 2018 and is continuing to date (as October 2021). From December 2020, ~5000 earthquakes with magnitudes from M1.2 M3.8 occurred small 20 × 10 km2. These were probably triggered by fluid migration during seasonal ...

ABSTRACT The moment magnitude (Mw) ?7 earthquake that struck Charleston, South Carolina, on 31 August 1886 is the largest historical in United States east of Appalachian Mountains. fault(s) ruptured during this has never been conclusively identified, and conflicting fault models have proposed. Here we interpret reprocessed seismic reflection profiles, legacy aeromagnetic data, newly collected g...

Abstract. The influence of strain distribution inheritance within fault systems on repeated reactivation is far less understood than the process itself. By evaluating cross sections through a new 3D geological model, we demonstrate contrasts in between different segments same system during its reverse and subsequent normal reactivation. study object Roer Valley graben (RVG), middle Mesozoic rif...

Wireless sensor networks are attracting increasing interest but su↵er from severe challenges such as low data reliability. To improve the data reliability, many sensor fault detection techniques have been proposed. Behind these methods, mathematical models are usually employed to serve as comparing metric to find faulty data in the absence of ground truth. In this paper, we firstly discuss sens...

The visualization and analysis of complex fields often requires identifying and extracting domain specific features. Through a collaboration with geophysicists we extend previous work on crease surfaces with a new and complimentary definition: extremas in principal surface curvature rather than scalar value. Using this definition, we visualize the resulting surfaces which correspond to individu...