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Also in the study of Maksoud et al 2018 reported that metal ion substitution was carried out by M-CoFe2O4 where M is a divalent transition metal, does not change the phase and formation of the cobalt ferrite crystal structure after being added with transition metal ions [5].
F, Al-Mekhlafi.
El-Sayyad, A.H.
El-Batal, M.S.
El-Okr, Synthesis and characterization of metals-substituted cobalt ferrite [Mx Co (1-x) Fe2O4;(M=Zn, Cu and Mn; x=0 and 0.5)] nanoparticles as antimicrobial agents and sensors for Anagrelide determination in biological samples, Mater.

The average equivalent diameter was used to describe the size of the primary α-Al particles which was examined using imagetool3.0 software.
The average equivalent diameter of the primary α-Al particles only is between 40µm and 44µm and the shape factor of this specimen is 1.28.
The primary α-Al particles were uniformly distributed in the eutectic matrix.
Secondary solidification contributes a further volume fraction of fine and spherical primary α-Al particles.
Du, E.L.

Bulk Ti3AlC2 used in this work was synthesized from Ti, Al and graphite powders by in-situ hot pressing/solid-liquid reaction method [7].
Wang, et al.: J.
El-Raghy: J.

The typical structure of CIGS thin film solar cell can be displayed as follows: substrate/ back electrode (Mo)/ absorption layer (CIGS)/ buffer layer (CdS)/ optical window layer (ZnO or AZO)/ Upper electrode (Al).
Ramanathan,e.al.
El Sayed, Kaind M.A.

The use of citric acid for leaching of saprolitic ore from Indonesia has been reported by Widi Astuti et al. [2].
Chemical content of the ore from ICP-OES and XRF analyses indicated that the ore is a typical low-grade saprolitic laterite, containing 1.76 wt% Ni (less than 2 wt% Ni), 21.64% Fe, 2.04% Al, 1.76% Ni, 0.06% Co, 8.44% Mg, 1.07% Cr, 0.43% Mn and 36.30% SiO2.
[3] Ashour, A., El-Sharkawy, S., Amer, M., Marzouk, A., Zaki, A., Kishikawa, A., Ohzono, M., Kondo, R., Shimizu, K., 2014, Production of citric acid from corncobs with its biological evaluation.

El Mokadem, V.
Saudemont, et al.
IET Renewable Power Generation, 2009, 3(3), 279-292 [5] ZHENG Taiyi, FENG Limin, WANG Shaoran, et al.

In this regard, the adaptive feedback synchronization for several chaotic systems has been investigated by Wang et al. [2], Han et al. [3] and Park [4].
References [1] Elabbasy EM, Agiza HN, El-Dessoky MM: Chaos, Solitons & Fractals Vol.21 (2004), p.657 [2] Wang Y, Guan ZH, Wang HO: Phys Lett A Vol.312 (2003), p.34 [3] Han X, Lu JA, Wu X: Chaos, Solitons & Fractals Vol.22 (2004), p.221 [4] Park JH: Int J Nonlin Sci Numer Simulat Vol.6 (2005), p.201 [5] Z.M.

[2] Hong-Bo Hu, Shan-Jing Yao, Le-HeMei, et al: Biotechnology Letters Vol. 1383–1387 (2000) , p.22 in Chinese
[4] Lijuan liu, Liebo Shu, Hairong Chen, et al: Journal of Plant Genetic Resources Vol.106-110 (2009), p.1 in Chinese
El-Khouri,F.

Lee et al. [14,15] demonstrated the Ir thin film formed with electron beam evaporation showed identical behavior to bulk Ir, and the charge density increased with increasing number of cycles.
Lee et al. [14,15] found that the cyclic voltammograms of Ir film was identical to a bulk Ir, and the charge injection increased with increasing number of cycles due to the formation of iridium oxide.
Van Kerrebroeck, E.L.

This new material was discovered concurrently by Sagawa et al and Croat et al [1,2].
El Hammioui and N.