Due to double salient structure, Flux Switching Machines (FSMs) are preferred for brushless AC high speed applications. Permanent Magnet (PM) FSMs (PM-FSMs) suited applicants where torque density (Tden) and power (Pden) the utmost requisite. However conventional PM-FSMs utilizes excessive rare earth PM volume VPM, higher cogging Tcog, ripples (Trip) comparatively lower Pden due flux leakage. To...

Permanent magnet (PM) machines with tooth coil windings are designed and analyzed. We study how the slot wedge material affects the behavior of PM losses when using tooth coil windings, which generate a significant air gap flux density harmonic content. The losses and cogging torques of a surface permanent magnet rotor and an interior permanent magnet rotor are compared in no-load and load situ...

In this paper, we consider a type of image quality assessment (IQA) as task-specific measurement, which can be used to select images that are more amenable given target task, such classification or segmentation. We propose train simultaneously two neural networks for selection and task using reinforcement learning. A controller network learns an policy by maximising accumulated reward based on ...

BackgroundAppendicitis is the most common indication for an emergency operation in children's age. Although none of the laboratory values has not high sensitivity and specificity for the diagnosis of appendicitis, leukocyte count and the percentage of segmented neutrophils are most commonly used. The aim of this study was to determine whether there is a statistically significant correlation bet...

This article systematically compares two axial flux permanent magnet machines designed for a university student racing car application: double-rotor single-stator yokeless and segmented armature (YASA) structure, single-rotor configuration. Both are optimized minimum loss active weight using three-dimensional finite element analysis the highest performing candidate designs compared in more deta...

Interrupted Time Series (ITS) analysis represents a powerful quasi-experime-ntal design in which a discontinuity is enforced at a specific intervention point in a time series, and separate regression functions are fitted before and after the intervention point. Segmented linear/quantile regression can be used in ITS designs to isolate intervention effects by estimating the sudden/level change (...

A category of permanent-magnet-shield (PM-shield) axial-field dual-rotor segmented switched reluctance machines (ADS-SRMs) are presented in this paper. These topologies featured by using the magnetic material to shield flux leakage stator and rotor parts. Besides, deployed magnets weaken saturation iron core, thus increasing main flux. Hence, torque-production capability can be increased effect...

This paper examines the hypothesis that both stock returns and volatility are asymmetrical functions of past information derived from domestic and US stock-market news. By employing a double-threshold regression GARCH model to investigate four major index-return series, we find significant evidence to sustain the asymmetrical hypothesis of stock returns. Specifically, evidence strongly supports...