A machine sound monitoring for predictive maintenance focusing on very low frequency band
SICE Journal of Control, Measurement, and System Integration, 2021 The monitoring of machines is one of key issues in the Industry 4.0 era. Particularly, the monitoring realized by non-contact sensors is drawing attention since it is easy to install and to avoid any problems caused by sensors accidentally dropping down ...
Kazuki Tsuji +5 more
doaj +1 more source
Drvna Industrija, 2022 The article presents theoretical analysis of machined surface roughness after sawing on circular saw and implementation of fast Fourier transform (FFT) as a possible simple filtering method for filtering out just the saw blade and saw tooth influence on ...
Igor Đukić +3 more
doaj +1 more source
Comparisons of the execution times and memory requirements for high-speed discrete fourier transforms and fast fourier transforms, for the measurement of AC power harmonics [PDF]
, 2011 Conventional wisdom dictates that a Fast Fourier Transform (FFT) will be a more computationally effective method for measuring multiple harmonics than a Discrete Fourier Transform (DFT) approach.
Burt, G. M., Roscoe, A. J.
core
A 64-point Fourier transform chip for high-speed wireless LAN application using OFDM
, 2004 In this article, we present a novel fixed-point 16-bit word-width 64-point FFT/IFFT processor developed primarily for the application in the OFDM based IEEE 802.11a Wireless LAN (WLAN) baseband processor.
Grass, Eckhard +2 more
core +1 more source
Computation of electromagnetic fields inside three dimensional inhomogeneous dielectrics using a buffered block forward backward algorithm [PDF]
, 2006 The paper is concerned with the electromagnetic scattering from a three-dimensional inhomogeneous dielectric object. In particular, the paper compares the use of a buffered block forward backward (BBFB) algorithm to the use of the commonly employed weak ...
Babu, Bijilash, Condon, Marissa
core +1 more source
TBK1‐Associated Primary Lateral Sclerosis Followed by Right Temporal Variant Frontotemporal Dementia
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT We report a 58‐year‐old woman with a novel splice‐site variant in the TANK‐binding kinase 1 (TBK1:c.993–2A>C p.Ala332TyrfsTer39) who sequentially developed primary lateral sclerosis (PLS) followed by right temporal variant frontotemporal dementia (rtvFTD). Neuroimaging demonstrated right anterior temporal atrophy before cognitive symptoms, and
Tomoyasu Matsubara +18 more
wiley +1 more source
FFT Consolidated Feature Space Methods for Image Ｒepresentation
Journal of Harbin University of Science and Technology, 2020 Fast Fourier Transform ( FFT) method has been widely used in image recognition. However，FFTmethod faces some challenges，such as occlusion of different angles，varying lighting and changeable facial expression. We combine fast Fourier transform and feature
SUN Ling +5 more
doaj +1 more source
Spectral Eigenface Representation for Human Identification [PDF]
Engineering and Technology Journal, 2010 Human identification based on face images, as physical biometric means, plays animperative role in many applications area. The methods for human identification usingface image uses either part of the face, all face, or mixture from these methods, in ...
Hanaa M. Salman
doaj +1 more source
A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions
Advanced Engineering Materials, EarlyView.This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice +2 more
wiley +1 more source
Screen‐Printed Flexible Piezoelectric Force Sensor Array with Electromagnetic Interference Shielding
Advanced Engineering Materials, EarlyView.This article introduces a flexible screen‐printed piezoelectric sensor array designed for low‐frequency healthcare applications such as tactile sensing and cardiovascular monitoring. The device integrates interface electronics enabling the simultaneous acquisition of up to 128 signals, along with flexible EMI shielding that significantly reduces noise ...
Joseph Faudou +6 more
wiley +1 more source