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El-Domiaty et al [24] investigated the effect of sulphide ions on the SCC of the 90 w% Cu- 10 w% Ni alloy; it was found that the susceptibility to SCC increased as the sulphide concentration increased.
Al- Hajji and M.
Abd El Haleem and E Abd El Aal, “Electrochemical Behavior of Copper in Alkaline-Sulfide Solutions”, Corrosion, 62(2), 2006, pp. 121-128
El-Domiaty and J.
Al-Hashem and J.

BP 32 El Alia Bab Ezzouar 16111, Algiers, Algeria a ngabouze@yahoo.fr.
The PS structures were characterized by ellipsometry measurements by the DRE (EL X-02C) Ellipsometer, using a multilayer model in the Bruggeman approximation with two different phases (c-Si and void) [4].
The shift indicates that the equilibrium of the Al/p-Si electrode with the solution is different to that of Al with the solution.
Fig. 7: Spectral response of Al2O3/Al/PS/p-Si structure.
Berger et al: Thin Solid Films. 297 (1997) 237

References [1]Zhang Guo yin,Liu Ming.A Coloured Petri Net Based on Formal Verification Methodology of Device.2010 International Conference on Intelligent Computation Technology and Automation,Changsha China,2010.IEEE Press,2010,VI,46-49P (El:20103413182787) [2]Zhang Guo yin,Liu Ming,Yao Ai hong.A Formal Approach for Modeling and Verification of Bus Bridge Based on Petri Net and Model Checking.The 3rd IEEE International Conference on Computer Science and Information Technology(IEEEICCSIT2010),Cheng du China,2010.IEEE Press,2010,VI,335-339P(El:20104413337414) [3]Armin Z,Gunter H.A Train Control System Case Study in Model-Based Real Time System Design.IntemationalParallelandDistributedProcessingSymPosium,France,2003,118-121P [4]Siveroni I,Zisman A,Spanoudakis G.AUML-based static verification framework for security.Requirements Engineering,2010,15(l):95-118P [5]]Guzey O,Wang LC,Levitt JR,et al.Increasing the Efficiency of Simulation-Based Functional Verification Through Unsupervised Support

The anodizing AA6061 Al plate process can effectively reduce the galvanic corrosion of the AA6061 Al and C1100 Cu couples.
Kihn et al. studied the galvanic corrosion of Al-Cu alloy and concluded that the greater susceptibility to pitting resulted from second phase particles in the alloy [5].
An AA 6061 Al sheet was cut into specimens with dimension of 2×25×80 mm.
El-Houd, and F.
El-Shawesh: Mater. and Design, 29 (2008) p. 801

Yusoff et al. (2014) recommended using Ethanol + 6mol H2O - animal fat in a 9-1 ratio, achieving good transesterification yields [8].
Sobrino et al. (2011) found a CO2eq. emissions reduction range of 84% to 91% for biodiesel compared to diesel [11].
Campanella, "Análisis del Impacto Ambiental de la Recuperación de Metanol en la Producción de Biodiesel usando el Algoritmo de Reducción de Desechos WAR," vol. 21, no. 1, pp. 23-30, 2010
Audsley et al., "Harmonisation of environmental life cycle assessment for agriculture," vol. 139, no. 1, 1997
Morales Blas, "Huella de Carbono en el Alcance 1 y 2, utilizando la metodología del GreenHouse Gas Protocol (GHG Protocol) y la Norma ISO 14064-1: 2006, en el Centro de Producción “Productos Unión”," 2018

An Approach to Systems-of-Systems Structural Analysis Through Interoperability Assessment: Application on Moroccan Case Ilyas Ed-Daoui1,3,a*, Aicha Koulou3,b, Norelislam El Hami3,c, Abdelkhalak El Hami2,b, Mhamed Itmi3,c and Nabil Hmina3,c 1LMN Laboratory, INSA Rouen Normandy, University of Rouen Normandy, 685 University Av., 76800 Saint-Etienne-du-Rouvray, France 2LITIS Laboratory, INSA Rouen Normandy, University of Rouen Normandy, 685 University Av., 76800 Saint-Etienne-du-Rouvray, France 3LGS Laboratory, ENSA Kenitra, Ibn Tofail University BP 242, University Av., Kenitra 14 000, Morocco 4ETSE Laboratory, ENSA Kenitra, Ibn Tofail University BP 242, University Av., Kenitra 14 000, Morocco aedd.ilyas@gmail.com, baicha.k2007@gmail.com, cnorelislam@outlook.com, dabdelkhalak.elhami@insa-rouen.fr, emhamed.itmi@insa-rouen.fr, fhmina@univ-ibntofail.ac.ma Keywords: Barriers; Interoperability; Levels; Structural analysis; Systems-of-systems (SoS).
Jackson et al., A research agenda for systems of systems architecting, International Journal of System of Systems Engineering Vol. 1, No. 1-2 (2008) pp.171-188
Saada et al., Mathematical Simulation Methods to Evaluate the Effects of Actions on Conditional Preventive Maintenance of Complex Systems, International Journal of Engineering Research in Africa, Vol. 35 (2018) pp.38-59
El Hami, M.
El Hami, N.

The quarry of Al-Gabel Al-Ahmer was the main source of quartzite in ancient Egypt, it is located near Cairo on the east bank of Nile.
The name of Al-Gebel Al-Ahmar is an Arabic name that means "The red mountain".
Fig. 4: (A and B) Photomicrographs of quartzite from Al-Gebel Al-Ahmar. 2.4.
References [1] El-Fakharany, F.
[6] Abd El-Hady, M.

To perform the mechanical properties of the alloys, the ultimate tensile strength (UTS), yield strength (YS) and elongation (EL) of the material were measured (Fig.1).
The results show that in all of the samples without heat treatment the fifth sample has the best ultimate tensile strength (UTS) and elongation (EL), However, there is no significant change on yield (YS) of each sample.
Iron-related porosity in Al-Si-(Cu) foundry alloys.
[17] Terzi, S. et al.
[21] Liu, L. et al.

A study done by El-Menyawy et al. [11] has illustrated that energy band gap, Eg of ANPA thin film drop off from 2.47eV to 2.1eV for an increase in film thickness from 105nm to 265nm.
Valaski et al. [16] has stated that electrical characteristics were strongly influenced by film thickness.
Methodology Three undoped conjugated polymer; PT, PPY and P3TAA solutions were synthesized by Hasiah et al. in 2008 as reported [18].
As reported by Carquigny et al. [19] and Viau et al. [6], electrolyte solvent did affect the thickness of organic polymer thin film deposited by electrochemical polymerization even with the same number of scan.
El-Menyawy, A.A.

In addition, some researcher [1,2,3] have reported the deleterious effects of Al-Mn phases on the mechanical and corrosion properties of Mn containing Mg-Al alloys.
The ratio (at%) of Al to Mn varying from points to points indicated that they might be different types of Al-Mn binary phases.
The main second phases also were decided as Al-Mn Phases.
Al-Mn phases, as expected, had been found in the above three samples.
Abromov: J. of Light Metals Vol.1 (2001), p179 [4] Haitham El Kadiri, Ybin Xue, M.F.