IRJEAS

INTERNATIONAL RESEARCH JOURNAL OF ENGINEERING & APPLIED SCIENCES

ISSN 2322-0821(E), ISSN 2394-9910(P)

An ISO 9001:2015 Certified Publication

Volume 11 Issue 1                        January-Marchr 2023

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G. SCHOLAR

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Study of Structural Properties of Co1+xZrxFe2-2xO4 Spinel Ferrite [pp 01-11]

DOI: 10.55083/irjeas.2022.v11i01001

Country- INDIA

Dr. Jairam B. Mote, Dr. Pravin K. Gaikwad

PAPER ID: IRJEAS04V10I410221222001

Published:

Journal: IRJEAS, Volume 11, Issue 1

Pages: 01-11

Keywords: Cobalt Ferrite, Sol-gel auto Combustion, Structural Properties

Abstract:

Nanocrystalline Co1+xZrxFe2-2xO4 with different compositions with x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5 and x = 0.6 were efficiently prepared by sol-gel self-combustion. Citric acid served as fuel and metal nitrates were AR grade. X-ray diffraction results showed that a single-phase cubic spinel structure was produced. The crystallite size, lattice constant, and X-ray density are all within the above limits. The crystallite size supports the nanocrystallinity of the material. Porosity increases because the bulk density is much lower than the X-ray density. The cation distribution results indicate that the cobalt ferrite sample has an inverse spinel structure, with Zr4+ ions occupying [B] positions exclusively and Co2+ and Fe3+ ions occupying tetrahedral (A) and octahedral [B] positions, respectively. indicates possession.

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Original Article Preprint

LICENCED UNDER

FIND ON

CROSSREF

SCILIT

G. SCHOLAR

CROSSMARK

Optimized Data Hiding Method based on Meerkat Clan Algorithm for Image Steganography [pp 12-18]

DOI: 10.55083/irjeas.2022.v11i01002

Country- INDIA

Navrinder Kaur, Sarabjeet Kaur

PAPER ID: IRJEAS04V10I410221222001

Published:

Journal: IRJEAS, Volume 11, Issue 1

Pages: 12-18

Keywords: Canny Edge Detection, Chaotic Logistic Map, Data Hiding, Image Steganography, Meerkat clan optimization, Security

Abstract:

To fulfill the security criterion of imperceptibility, the secret info is hidden in the cover image using image steganography. To do this, a hidden data bit swaps out the least important part of the cover image. The replacement process produces variability, which has an effect on the imperceptibility parameter. To address this restriction, this research proposes a unique optimal data concealing approach based on the meerkat clan optimization algorithm. This method seeks the best secret data to conceal in the cover image to be able to improve the imperceptibility parameter. The secret data is also divided into 2:4 ratios. The cover image is then divided into smooth and edge regions. A 2-bit LSB technique is utilized to hide data in the smooth area, whereas data hiding in the edge region is accomplished with a 4-bit LSB approach. The simulation is evaluated using multiple performance measures to compare its performance to existing approaches. The suggested technique outperforms the previous method in terms of imperceptibility.

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