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El Assad1,a*, Y.
Ait Hmazi1,d 1Chouaib Doukkali University, Faculty of Science, Physics Department, El-Jadida, Morocco 2Chouaib Doukkali University, Ecole Nationale des Sciences Appliquées d’El Jadida, Laboratoire des Sciences de l'Ingénieur Pour l'Energie (LabSIPE), Eljadida, Morocco a*hatimelassad2@gmail.com, brd.yahya@gmail.com, chachtaoufik@gmail.com, daithmazi.f@ucd.ac.ma Keywords: dynamic mesh, internal erosion, turbulent flow, erosion law, structure-flow interaction.
References [1] Mercier, et al.
[3] El Assad, Hatim, et al.

Cawley et al. [1] are among the first ones to detect damage in elastic structure by using natural frequencies.
Zhong et al. [8] proposed a response-only method for structural damage detection using the corrected natural frequency curve of a damaged beam with a traversing auxiliary mass.
Pandey at el. [9] evaluated the changes in the flexibility matrix of a structure to identify the presence of damage and locate the damage.
Pandey et al. [10] showed that absolute changes in the curvature mode shapes are localized in the region of damage and hence can be used to detect damage in a structure.
Zhong at el. [13] proposed a new approach based on stationary wavelet transform of mode shape for crack detection in beam-like structures.

El-sayed and M.A.
El-sayed: Nano Today Vol. 2 (2007), p. 18 [2] J.
Murray, et al: Chem.
Phukon, et al: Colloid.
Panacek, et al: Acta Biomater.

Thermo-Kinetic Study of Adsorption of Methylene Blue in Aqueous Solutions Using Algerian Illite Natural and Activated Mineral Clay LARBI Haddad1,a*, ABDELKADER Hima2,b, BELKHIR Dadamoussa3,c and ASMA Messai Aoun4,d 1Department of Chemistry, Faculty of Exact Sciences, University of El Oued, Algeria 2Department of Electrical Engineering, Faculty of Technology, University of El Oued, Algeria 3University of Ghardaia, Faculty of Sciences & Technology, Algeria 4Department of Biology, Faculty of Natural and Life Sciences, University of El Oued, Algeria haddadlarbi82@outlook.fr Keywords: illite; mineral clay; adsorption; methylene blue; water treatment; environment.
The intensity of the bands observed at 3620.8cm-1 (Al-OH-Al with Al-Mg-OH stretching vibrations) decreases after activation of acid.
The peak of the Si-O-Si band at 988.1cm-1 has remained unchanged with treatment intensity; similar results have been reported by Christidis et al. (1997).
El Bachiri, A.
El Harfi, Heliyon, Textile finishing dyes and their impact on aquatic environs, 5 (2019) e02711

Fonseca, et al: Mater.
Madangopal, et al: JMEPEG.
Kinab, et al: Mater.
El-Houd, F.
El-Shawesh: Desalination.

Barsoum and El-Raghy reported that high purity bulk Ti3SiC2 were acquired by hot pressing Ti/SiC/C powder mixtures at 1600°C for 4h under 40MPa[2-3].
El-Raghy, Synthesis and characterization of a remarkable ceramic: Ti3SiC2, J.
El-Raghy, et al, Tensile properties of Ti3SiC2 in the 25-1300°C temperature range, Acta Mater. 48 (2000) 453-459
Jiang, et al, Fabrication of high purity Ti3SiC2 from Ti/Si/C with the aids of Al by spark plasma sintering, J.
Berthold, et al, Effect of Al dopant on the hydrothermal oxidation behavior of Ti3SiC2 powders, J.

Table 1 Chemical composition in wt% and heat treatment of 1CrMoV and 2CrMoNiVW Material C Si Mn P S Cr Mo Ni W V Al As Cu Sn Sb 1CrMoV .29 .07 .74 .011 .006 1.3 1.0 .73 - .27 .006 .018 0.5 .007 .0011 2CrMoNiVW .22 .10 .66 .01 .003 2.1 .84 .75 .67 .32 .008 .015 .06 .01 .014 Heat treatment 1CrMoV 850 °C, 8.5 h / furnace + 350 °C, 34 h + 950 °C, 12 h / furnace + 750 °C / air + 250 °C, 26.5 h + 680 °C, 18 h / furnace + 200 °C / air 2CrMoNiVW 950 °C, 36 h / air + 680 °C, 15 h / furnace cool, 950 °C, 24 h / oil +670 °C - 675 °C, 17 h / furnace cool In order to determine fatigue life curves of materials 1CrMoV and 2CrMoNiVW six tests of each material have been carried out at 550°C.
Kannan, el: Int J Fatigue, Vol. 24(2002), p.1285
Douzaki, el: ASME, PVP conference, 1993 [6] K.
Ueno, el: Nucl Eng Des, Vol. 153(1994), p.97 [7] A.

El Mansori, Wear study of structured coated belts in advanced abrasive belt finishing, Surface&Coatings Technology, 256 (2015) 12-24
[3] S.Mezghani, M.El Mansori, E.Sura, Wear mechanism maps for the belt finishing of steel and cast iron, Wear, 267 (2009) 86-91
[5] Caijun XU，Jiuhua XU，Yucan FU, et, al.
[7] Wenguo HUO，Jiuhua XU，Yucan Fu, et, al.
[8] Zhaohui DENG, Zhanqiang LIU, Xiaohong ZHANG, et, al.

Khan et al. [3] report the effect of aniline concentrations on the growth and size of silver nanocrystals.
Yilmaz et al. [9] report that Maillard reaction products in model bread crust extracts exhibit ferric reducing/antioxidant activity.
Reducing activities The DPPH radical scavenging activity of the bread crust extract was monitored according to the method of Luo et al [10].
El-Kheshen, S.F.
Gad El-Rab, Effect of reducing and protecting agents on size of silver nanoparticles and their anti-bacterial activity, Der Pharma Chemica. 4 (2012) 53-65

REFERENCE [1] U.Wolff, F.L.Dickert, G.K.Fischerauer, et al.
SAW Sensors for Harsh Envi-ronments[J].IEEE Sensors Journal. 2001,1(1):4–13 [2] D.W.Galipeau, P.R.Story, K.A.Vetelino, et al.
EL Gowini and Walied A. 
EL Gowini and Walied A. 
[6] Ippolito S J, Kalantar-zadeh K, Powell D A, et al.