A comparative study on novelty detection and frequency analysis of Lamb waves for the monitoring of metallic repaired structures

2012 ◽  
pp. 213-218 ◽  
Author(s):  
S Pavlopoulou ◽  
W Staszewski ◽  
C Soutis
Keyword(s):  
Comparative Study ◽  
Frequency Analysis ◽  
Lamb Waves ◽  
Novelty Detection

Time-frequency analysis of venous stenosis: a comparative study

2011 ◽  
Vol 44 (2) ◽  
pp. e61-e62
Author(s):  
Pablo Vasquez ◽  
Marco Munguia ◽  
Elisabeth Mattsson ◽  
Bengt Mandersson
Keyword(s):  
Comparative Study ◽  
Frequency Analysis ◽  
Time Frequency Analysis ◽  
Time Frequency ◽  
Venous Stenosis

A new high‐frequency analysis of coatings using leaky Lamb waves

1993 ◽  
Vol 94 (5) ◽  
pp. 2954-2962 ◽  
Author(s):  
P.‐C. Xu ◽  
K.‐E. Lindenschmidt ◽  
S. A. Meguid
Keyword(s):  
Frequency Analysis ◽  
High Frequency ◽  
Lamb Waves ◽  
Leaky Lamb Waves

Chi-Squared Test Analysis on Hybrid Crypto System

2021 ◽  
Vol 13 ◽  
Author(s):  
Najmul Hoque Munshi ◽  
Proteeti Das ◽  
Subhasis Maitra
Keyword(s):  
Performance Analysis ◽  
Network Security ◽  
Comparative Study ◽  
Frequency Analysis ◽  
Hybrid Algorithm ◽  
The Internet ◽  
Test Analysis ◽  
Chi Squared

Nowadays the internet has reached each and every aspect of our day-to-day life. The idea of cryptography is to provide security. It is an encryption technique used for network security when different networks are interconnected and become vulnerable to attacks and intrusions. Different algorithms like DES, 3-DES, Modified DES, RSA, and Modified RSA algorithms for encryption have been reported. In this paper, a hybrid cryptosystem, which is the combination of the traditional DES & RSA, has been discussed. The performance analysis, like mainly chi-squared test and then frequency analysis of the hybrid algorithm has been dealt here clearly to show the novelty of the combined DES and RSA work. A comparative study has been performed with the traditional DES & RSA technique. The chi-squared methodology is a statistical way of evaluating the quality of ciphertext. If the ciphertext needs to be strong, then A high value of chi-squared is desired.

Time–frequency analysis of transient dispersive waves: A comparative study

2007 ◽  
Vol 68 (3) ◽  
pp. 296-309 ◽  
Author(s):  
A. Apostoloudia ◽  
E. Douka ◽  
L.J. Hadjileontiadis ◽  
I.T. Rekanos ◽  
A. Trochidis
Keyword(s):  
Comparative Study ◽  
Frequency Analysis ◽  
Dispersive Waves ◽  
Time Frequency Analysis ◽  
Time Frequency
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