Centrifugal pumps are the most vital part of any process industry. A fault in centrifugal pump can affect imperative industrial processes. To ensure reliable operation pump, this paper proposes a novel automated health state diagnosis framework for that combines signal to time-frequency imaging technique and an Adaptive Deep Convolution Neural Network model (ADCNN). First, vibration signals cor...

The purpose of this study was to develop a sound quality model for real time active control systems. is based on an optimal analytic wavelet transform (OAWT) used along with back propagation neural network (BPNN) in which the initial weights and thresholds are determined by particle swarm optimisation (PSO). In input signal decomposed into 24 critical bands extract feature matrix, energy, mean,...

Network scans are a common first step in a network intrusion attempt. In order to gain information about a potential network intrusion, it is beneficial to analyze these network scans. Statistical methods such as wavelet scalogram analysis have been used along with visualization techniques in previous methods. However, applying these statistical methods causes a substantial amount of data loss....

We propose a new class of affine higher order time-frequency representations (HO-TFRs) unifying HO-TFRs which satisfy the desirable properties of scale covariance and time-shift covariance. This new class extends to higher order (N > 2) the affine class of quadratic (N = 2) time-frequency representations. In this paper, we provide five alternative formulations of the class in terms of multi-dim...

The use of the Wavelet Transform for the diagnosis of electrical machines has been widely studied. The present paper explains the main four general approaches in which the Startup Current (SC) of an Squirrel Cage Induction Motor is analyzed using the Wavelet Transform, in order to detect bar breakages: to generate the scalogram of the SC, to calculate the wavelet ridges, to calculate the DWT co...

Helitrons are a specific class of DNA which belongs to the category of transposable elements (TEs). The specificity of these elements resides in their interaction with transposition proteins; which considerably indicates their impact on the organisms' evolution. Since the helitron family possesses variable and complex structures, their identification is a veritable challenge. Therefore, the eme...

This paper analyzes simultaneous self-potential and gas temperature variations recorded at Merapi volcano in spring 2001, the dry season shortly after the volcanic crisis 2001. Temporal variations of fumarole gas temperature show characteristic quasi periodic signals at scales 1-8 hours and amplitudes up to ten degrees. We propose a simple graphical technique combining a wavelet scalogram and a...

We consider the 2D wavelet transform with two scales to study sky maps of temperature anisotropies in the cosmic microwave background radiation (CMB). We apply this technique to simulated maps of small sky patches of size 12.8◦ × 12.8◦ and 1.5′ × 1.5′ pixels. The relation to the standard approach, based on the C′ ls, is established through the introduction of the scalogram. We consider temperat...