Two of the most common defects in rotating systems are abnormal wear of the bearing bushing and bearing misalignment. The present paper introduces a new fault diagnosis model that uses artificial neural networks (ANN) in order to identify the increase of wear depth and/or the increment of the misalignment angle. Reynolds equation is solved by FEM and provides data about bearing wear and misalig...

We study some effects of cell misalignments in accelerator structures in which each cell is displaced the same amount and direction but with sign which alternates from cell to cell. In particular we study the manifold radiation in a damped detuned structure (DDS1) and wakefield effects in a uniform constant impedance structure. A synchronous wave aliasing phenomenon is observed. In previous tre...

Misalignment is a problematic challenge in RF MEMS resonators. It causes asymmetry in the ultra symmetric radial contour mode disk resonators and degrades their performance by increasing the insertion loss and decreasing their quality factors (Q). Self-alignment method seems to be a good solution for misalignment problem, but it cannot be directly applied on high performance ring shape anchored...

In contrast to objects of relatively simple shapes, it is diflault to extract geometrical informations fiom objects of complicated shapes and thus their assembly requires complete information about a misalignment between mating parts. This motivates development of a new sensing method for detecting the misalignment. In this paper, we propose a new omnidirectional image sensing system for assemb...

The next major space-borne observatory, the James Webb Space Telescope, will be a 6.6M field-biased, obscured, three-mirror anastigmat (TMA). Over the used field of view, the performance of TMA telescopes is dominated by 3(rd) order misalignment aberrations. Here it is shown that two dominant 3(rd) order misalignment aberrations arise for any TMA telescope. One aberration, field constant 3(rd) ...

Complex mutational events, including de novo inversion with deletion and duplication of sequence, have been observed but are difficult to model. We propose that nascent leading-strand misalignment upon the lagging-strand template during DNA replication can result in the inversion of sequence. The positioning of this misalignment and of the realignment of the leading strand back into the leading...

For echo cancelation enhanced by a Post-Filter it is necessary to get a reliable estimate of the (residual) echo power spectral density (PSD). We describe a method to obtain the echo PSD by an estimation of the system misalignment. For room impulse responses longer than the DFTlength a partitioned processing is necessary. Our contribution addresses problems concerning the partitioned calculatio...

Abstract Humans have the unique ability to flexibly and proactively extract a regular beat from complex auditory patterns, such as music. Recent neuropysiological neuroimaging studies demonstrated that perception rely on interactions between motor systems, specifically premotor cortex (PMC) supplementary areas (SMA/pre-SMA). However, how planning regions in human brain actively contributes is s...