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In the era of sustainability, recycling of industrial waste material by using marble powder as filler in the Polypropylene matrix recommend an interesting opportunity. In this study, composites were fabricated by adding different weight percentages of marble powder (5–15 wt.%) in the Polypropylene by injection molding process. To evaluate the contribution of marble powder in the PP-marble composite,...
Steganography is being used to communicate confidential pieces of information across covert channels as it is less prone to attacks than conventional cryptography methods. It is increasingly used for images or audio files. Least Significant Bit modification is most popular method for steganography through audio files. However, it is open to steganalysis. In this paper, a novel Secured LSB Modification...
For a cognitive radio (CR) system, the process of spectrum sensing has lot of importance. The objective of CR is to improve the utilization of unused spectrum band while ensuring sufficient protection to the primary users (PUs). If sensing and transmission take place simultaneously, the CR efficiency can substantially be improved. The energy detection scheme is a highly used sensing scheme. In this...
Noise is omnipresent in almost all acoustical environments. The investigation presents here seeks to quantify the impact of noise on mel-frequency cepstral coefficients (MFCC) of speech signal. MFCC is one of the most commonly used features for speech recognition systems. However, it has been observed that performance of MFCC based system degrades drastically with changing noise levels and noise types...
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