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high frequency detection technique

Sensitivity of the High Frequency ACPD Technique for the Detection of Surface Damage and Cracks during Creep

Sensitivity of the High Frequency ACPD Technique for the Detection of Surface Damage and Cracks during Creep

... The purpose of this study is to successfully detect the initiation of surface cracking within preconditioned tensile specimens using the high frequency ACPD technique. The data that has been obtained ...

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The Effect Of High Frequency Wave In Vibro Acoustic Method For Crack Detection

The Effect Of High Frequency Wave In Vibro Acoustic Method For Crack Detection

... Radiography Technique IT Infrared Thermography EDM Electronic Discharge Machine UTM Universal Testing Machine PSB Persistent Slip Bands VAM Vibro-Acoustic Modulation FEM Finite Element Method FE Finite Element ...

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Joint CFO Estimation and Data Detection in OFDM systems

Joint CFO Estimation and Data Detection in OFDM systems

... OFDM technique was ...and high transmission speed, make OFDM technique being widely ...data detection are performed in two separate parts. After frequency correction by an estimate of ...

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Quantitative NDE of Surface Cracks in Ceramic Materials by means of a High Frequency Electromagnetic Wave

Quantitative NDE of Surface Cracks in Ceramic Materials by means of a High Frequency Electromagnetic Wave

... Specifically, experiments have been performed with specimens made of alumina, containing an artificial and a natural crack. As a result of the detection of the artificial crack, whose width is 0.5 mm and depth is 1 ...

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High frequency of M  leprae DNA detection in asymptomatic household contacts

High frequency of M leprae DNA detection in asymptomatic household contacts

... The early diagnosis and prompt initiation of treatment is essential to the rapid interruption of the disease trans- mission chain. In this sense, the development of a sensi- tive test for the diagnosis of leprosy has ...

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Nonparametric Spectral Estimation Technique to Estimate Dominant Frequency for Atrial Fibrillation Detection

Nonparametric Spectral Estimation Technique to Estimate Dominant Frequency for Atrial Fibrillation Detection

... and high mortality rates. In frequency domain analysis, pre-requisite for Afib detection has been the estimation of reliable dominant frequency (DF) of atrial signals via different spectral ...

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A New Theoretical Technique for the Measurement of High Frequency Relic Gravitational Waves

A New Theoretical Technique for the Measurement of High Frequency Relic Gravitational Waves

... focus detection photons on microwave receivers) ...tion, frequency and appropriate phase as the HFGW to be ...or detection photons that move out in the +x and –x di- ...microwave detection ...

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Image Sharpening Using Fuzzy Logic Based Edge Detection

Image Sharpening Using Fuzzy Logic Based Edge Detection

... A technique called unsharp masking is modified for this ...masking, high frequency data is emphasized in an ...the high frequency data from the image is used; based on Fuzzy logic based ...

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Modeling of high frequency current transformer based partial discharge detection in high voltage cables

Modeling of high frequency current transformer based partial discharge detection in high voltage cables

... modeling technique to solve electromagnetic (EM) wave ...FDTD technique was found to be a useful tool within the field of studies on HV insulation systems and PD monitoring techniques in 2000 ...and ...

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Damage Detection in Civil Structures using High Frequency Seismograms

Damage Detection in Civil Structures using High Frequency Seismograms

... This technique is different from existing acoustic methods because it is designed to recognize and use seismic waves radiated by the original brittle failure event where the event is not known to have occurred ...

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FUZZY LOGIC TECHNIQUE FOR HIGH IMPEDANCE FAULT DETECTION IN DISTRIBUTION FEEDER

FUZZY LOGIC TECHNIQUE FOR HIGH IMPEDANCE FAULT DETECTION IN DISTRIBUTION FEEDER

... signals frequency and time domain and this highly improves the HIFs detection capacity in electrical distribution feeder ...and frequency domain information, the hybrid analysis of low frequencies ...

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An Precise Frequency Tracking Technique Based on Short Current Detection

An Precise Frequency Tracking Technique Based on Short Current Detection

... inherent frequency isdetermined by an implicit high-order differential equation set, it isdifficult to obtain its accurate ...theinherent frequency can be calculated, the time consuming will ...

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Mention Anomaly Based Event Detection using Real Time Twitter Data

Mention Anomaly Based Event Detection using Real Time Twitter Data

... event detection focuses on only textual content of tweets and ignores social aspect of ...event detection technique that solely focuses on tweets and leverages the creation frequency of ...

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Control Flow Graph Based Multiclass Malware Detection Using Bi-normal Separation

Control Flow Graph Based Multiclass Malware Detection Using Bi-normal Separation

... Such detection techniques can examine packed or polymorphic ...Static detection techniques involve examining the malware without executing the ...Static detection analyse the content using header ...

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Tamper Localization In Wavelet Domain Using Semi-Fragile Watermarking

Tamper Localization In Wavelet Domain Using Semi-Fragile Watermarking

... tampering detection can be adapted by selecting the quantization step size Q, choosing the filter size in step 5 and the size of the structural element used for erosion and dilation in step 6 of the authentication ...

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Orthogonal Frequency Division Multiplexing & Measurement of its Performance

Orthogonal Frequency Division Multiplexing & Measurement of its Performance

... In practice, discrete Fourier transform (DFT) and inverse DFT (IDFT) processes are useful for implementing these orthogonal signals and DFT and IDFT can be implemented efficiently by using fast Fourier transform (FFT) ...

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MF and HF radar techniques for investigating the dynamics and structure of the 50 to 110 km height region: a review

MF and HF radar techniques for investigating the dynamics and structure of the 50 to 110 km height region: a review

... Each technique has its own strengths and weaknesses, and it has become more com- mon to utilize clusters of instruments to investigate the MLT region in order to maximize strengths and minimize ...

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Performance Improvement of BER in OFDM System using Feed Forward Technique on Power Amplifier

Performance Improvement of BER in OFDM System using Feed Forward Technique on Power Amplifier

... issue, high power efficiency is a basic requirement of a high power ...time, high linearity is more and more desirable today, to minimize the frequency interference and allow higher ...

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Fabrication of high temperature surface acoustic wave devices for sensor applications

Fabrication of high temperature surface acoustic wave devices for sensor applications

... frequency with different Pt thickness can be observed and these are summarised in Table 1 and Fig. 1. In Fig. 2, the rel- ative mass loading effect (expressed as a percentage change) due to different thickness is ...

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On the Performance Analysis of One Tap Equalizers in Oversampled OFDM Systems

On the Performance Analysis of One Tap Equalizers in Oversampled OFDM Systems

... [22], frequency domain oversampling (FDO) is examined in multipath chan- nels to improve the error performance of a minimum mean-square error (MMSE) single carrier frequency domain equalizer ...

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