Results 1 to 10 of about 71,058 (150)
EEMD-MUSIC-Based Analysis for Natural Frequencies Identification of Structures Using Artificial and Natural Excitations [PDF]
The Scientific World Journal, 2014 This paper presents a new EEMD-MUSIC- (ensemble empirical mode decomposition-multiple signal classification-) based methodology to identify modal frequencies in structures ranging from free and ambient vibration signals produced by artificial and natural
David Camarena-Martinez +5 more
doaj +3 more sources
Empirical Mode Decomposition and Neural Networks on FPGA for Fault Diagnosis in Induction Motors [PDF]
The Scientific World Journal, 2014 Nowadays, many industrial applications require online systems that combine several processing techniques in order to offer solutions to complex problems as the case of detection and classification of multiple faults in induction motors.
David Camarena-Martinez +4 more
doaj +3 more sources
Shock and Vibration, 2015 Induction motors are critical components for most industries and the condition monitoring has become necessary to detect faults. There are several techniques for fault diagnosis of induction motors and analyzing the startup transient vibration signals is
Paulo Antonio Delgado-Arredondo +6 more
doaj +2 more sources
Analysis of the Cluster Prominence Feature for Detecting Calcifications in Mammograms. [PDF]
J Healthc Eng, 2018 In mammograms, a calcification is represented as small but brilliant white region of the digital image. Earlier detection of malignant calcifications in patients provides high expectation of surviving to this disease. Nevertheless, white regions are difficult to see by visual inspection because a mammogram is a gray‐scale image of the breast.
Cruz-Bernal A +4 more
europepmc +2 more sources
An Architecture for Measuring Joint Angles Using a Long Period Fiber Grating-Based Sensor [PDF]
Sensors, 2014 The implementation of signal filters in a real-time form requires a tradeoff between computation resources and the system performance. Therefore, taking advantage of low lag response and the reduced consumption of resources, in this article, the ...
Carlos A. Perez-Ramirez +5 more
doaj +2 more sources
Improving EEG-Based Motor Imagery Classification for Real-Time Applications Using the QSA Method. [PDF]
Comput Intell Neurosci, 2017 We present an improvement to the quaternion‐based signal analysis (QSA) technique to extract electroencephalography (EEG) signal features with a view to developing real‐time applications, particularly in motor imagery (IM) cognitive processes. The proposed methodology (iQSA, improved QSA) extracts features such as the average, variance, homogeneity ...
Batres-Mendoza P +6 more
europepmc +2 more sources
Wireless sensing of gas in mining with web service in real time
Ingeniería Investigación y Desarrollo, 2014 This paper presents the development and implementation of a wireless system and sensing of explosive gases in mining with web service in real time. The system consists of modules configured in a network of sensors arranged in the inner galleries of the ...
Juan Mauricio Salamanca +3 more
doaj +1 more source
Mathematics, 2019 Empirical mode decomposition (EMD)-based methods are powerful digital signal processing techniques because they do not need a priori information of the target signal due to their intrinsic adaptive behavior.
Martin Valtierra-Rodriguez +3 more
doaj +1 more source
Mathematical Problems in Engineering, Volume 2018, Issue 1, 2018., 2018 This work presents a watermarking technique in digital images using a brightness model and the Hermite Transform (HT). The HT is an image representation model that incorporates important properties of the Human Vision System (HVS), such as the analysis of local orientation, and the model of Gaussian derivatives of early vision.
Boris Escalante-Ramírez +2 more
wiley +1 more source
Shock and Vibration, Volume 2016, Issue 1, 2016., 2016 Gearboxes and induction motors are important components in industrial applications and their monitoring condition is critical in the industrial sector so as to reduce costs and maintenance downtimes. There are several techniques associated with the fault diagnosis in rotating machinery; however, vibration and stator currents analysis are commonly used ...
Juan Jose Saucedo-Dorantes +5 more
wiley +1 more source