Research on Ring Fire Diagnosis of DC Motor Based on Discrete Wavelet Lipschitz Index

2015 ◽  
Vol 9 (1) ◽  
pp. 33-37 ◽  
Author(s):  
Tang Zhao-ping ◽  
Yang Qing-ping ◽  
Tang Shuai ◽  
Zhang Wen-sheng ◽  
Sun Jian-ping
Keyword(s):  
Dc Motor ◽  
Wavelet Function ◽  
New Method ◽  
Discrete Wavelet ◽  
Modulus Maxima ◽  
The Way

The favorable localization features of discrete wavelet provide a new method for detecting the mutational points of electric spark signal. In this paper, by means of discrete wavelet function called db5, using the way of 6 scales wavelet, analyzing the gathered electric spark signal and by extracting the modulus maxima of the 6 layers detailed signal coefficient, the signal’s mutational points were located exactly and successfully. In addition, via the modulus maxima to calculate Lipschitz index, measuring signal’s singularity, the signal’s mutational time was confirmed. The result of the simulation shows that this method can detect not only the time and size effectively if the ring fire happens but also the failure of the locomotive traction dc motor, timely and precisely. In this way, the operation safety of the train is ensured.

A New Method for Characterizing Replacement Rate Variation in Molecular Sequences: Application of the Fourier and Wavelet Models to Drosophila and Mammalian Proteins

Genetics ◽  
2000 ◽  
Vol 154 (1) ◽  
pp. 381-395
Author(s):  
Pavel Morozov ◽  
Tatyana Sitnikova ◽  
Gary Churchill ◽  
Francisco José Ayala ◽  
Andrey Rzhetsky
Keyword(s):  
Wavelet Transforms ◽  
Parametric Bootstrap ◽  
Real Data ◽  
New Method ◽  
Rate Variation ◽  
Discrete Wavelet ◽  
Data Sets ◽  
Ratio Test ◽  
Replacement Rate ◽  
New Models

Abstract We propose models for describing replacement rate variation in genes and proteins, in which the profile of relative replacement rates along the length of a given sequence is defined as a function of the site number. We consider here two types of functions, one derived from the cosine Fourier series, and the other from discrete wavelet transforms. The number of parameters used for characterizing the substitution rates along the sequences can be flexibly changed and in their most parameter-rich versions, both Fourier and wavelet models become equivalent to the unrestricted-rates model, in which each site of a sequence alignment evolves at a unique rate. When applied to a few real data sets, the new models appeared to fit data better than the discrete gamma model when compared with the Akaike information criterion and the likelihood-ratio test, although the parametric bootstrap version of the Cox test performed for one of the data sets indicated that the difference in likelihoods between the two models is not significant. The new models are applicable to testing biological hypotheses such as the statistical identity of rate variation profiles among homologous protein families. These models are also useful for determining regions in genes and proteins that evolve significantly faster or slower than the sequence average. We illustrate the application of the new method by analyzing human immunoglobulin and Drosophilid alcohol dehydrogenase sequences.

scholarly journals HERMENEUTIKA SEBAGAI METODE BARU DALAM MENAFSIRKAN ALQURAN

2018 ◽  
Vol 2 (2) ◽  
pp. 159
Author(s):  
Mulizar Mulizar
Keyword(s):  
The Other ◽  
New Method ◽  
Religious Groups ◽  
Other Hand ◽  
The World ◽  
The Way

This article will discuss hermeneutics as a new method of interpreting the Qur'an.The use of hermeneutics is a new thingin the world of interpretation. Some support and some reject it.The results of this study show that the use of hermeneutics in interpreting the Qur’an must be careful.In addition, This science should be placed as a complement, not as a subdivision of the science of interpretation. On the other hand, hermeneutics paves the way to contextualize the scriptures, so that they can dialogue in different spaces and times, as apologically desirable and held by many religious groups to their respective scriptures.

Wavelet transform on regression trend curve and its application in financial data

2020 ◽  
Vol 18 (05) ◽  
pp. 2050040 ◽  
Author(s):  
Xiaohui Zhou
Keyword(s):  
Wavelet Transform ◽  
Reconstruction Algorithm ◽  
Wavelet Function ◽  
Financial Data ◽  
Discrete Wavelet ◽  
Reconstruction Algorithms ◽  
Regression Curve ◽  
Growth Trend ◽  
Wavelet Filters ◽  
New Research

In this paper, wavelet transform on a regression curve is investigated by using length-preserving projection and its application in financial data is also discussed. First, properties of wavelet filters on the regression trend curves are studied and two-scale equation of wavelet function is deduced on the regression trend curves. Second, the decomposition and reconstruction algorithm of discrete wavelet transform on regression trend curves is derived. Finally, two examples in financial data are given for discussion, based on decomposition and reconstruction algorithms on regression trend curves. Some new research interpretations are presented in dealing with financial data such as “volatility on regression growth trend”, “error on regression growth trend”, and so on.

scholarly journals New method for denoising borehole transient electromagnetic data with discrete wavelet transform

2019 ◽  
Vol 168 ◽  
pp. 41-48 ◽  
Author(s):  
Xueping Dai ◽  
Li Zhen Cheng ◽  
Jean-Claude Mareschal ◽  
Daniel Lemire ◽  
Chong Liu
Keyword(s):  
Wavelet Transform ◽  
Discrete Wavelet Transform ◽  
New Method ◽  
Discrete Wavelet ◽  
Electromagnetic Data ◽  
Transient Electromagnetic

AUDIO WATERMARKING WITH ANGLE QUANTIZATION BASED ON DISCRETE WAVELET TRANSFORM AND SINGULAR VALUE DECOMPOSITION

2018 ◽  
Vol 6 (2) ◽  
pp. 41-52
Author(s):  
Divya Chadar ◽  
Shailja Shukla
Keyword(s):  
Wavelet Transform ◽  
Singular Value Decomposition ◽  
Discrete Wavelet Transform ◽  
Auditory System ◽  
Audio Signal ◽  
Singular Value ◽  
New Method ◽  
Discrete Wavelet ◽  
Audio Watermark ◽  
Value Decomposition

An audio watermark is a unique electronic identifier embedded in an audio signal, typically used to identify ownership of copyright. Proposed work is a new method of audio watermark hiding inside another bigger cover standard audio cover. The method includes ‘harr’ wavelet based Discrete Wavelet Transform decomposition of frequencies hence the audio samples of watermark gets hidden only those parts of cover audio where human ears are less sensible according to Human Auditory System. Proposed method also includes the Singular Value Decomposition, which is required for making our method robust against the various communication of processing attacks like compression, filtering, fading or noise addition. Proposed work is also using the concept of angular modulation which initially modifies the audio watermark in to provide extra security and also extra robustness in communication. The design is been develop on MATLAB 2013b version and verification of design o the same. 

Research on the Size Design of Corrugated Box Based on the Standard Pallet Dimension

2013 ◽  
Vol 469 ◽  
pp. 205-208
Author(s):  
Shu Rong Chen ◽  
Guo Rong Cao ◽  
Xuan Zheng
Keyword(s):  
Theoretical Basis ◽  
Computer Software ◽  
New Method ◽  
Transport Cost ◽  
Experience Design ◽  
Volume Rate ◽  
Object Of Study ◽  
The Way

To solve the problems such as hand measurement, experience design and not consider area utilization of pallet, the paper researched the flow and method of size design of corrugated box when it was regularly placed in the standard pallet. The paper designed a new method to calculate the size of corrugated box which was “from outside to inside, and then from inside to outside” through optimize the way of arrangement and the number of product in which the object of study was assumed by taking product as quasi-square and cylinder and outer packaging container as corrugated box. Both the standard pallet sizes and product dimensions were considered, and it provide theoretical basis for preparing related computer software. At the same time, it ensure pallet utilization and volume rate of corrugated box, reduce transport cost farthest and realize the goal of packaging reduction.

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