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[6]S.A.El-Badry,Development of copper-based metal matrix composites for electric motor commutator rings,Metal Powder Report, 58(2003)38
Stamopoullos,H.R.Z.Sandim, et al, Size effects on the magnetic properties of Cu–Nb nanofilamentary wires processed by severe plastic deformation, Supercond.Sci.
Renault, V.Vidal, et al, Plasticity of multiscale nanofilamentary Cu/Nb composite wires during in situ neutron diffraction: Codeformation and size effect, Appl.
[13]Vidal V, Thilly L, Van Petegem S, Stuhr U, Lecouturier F,Renault PO, et al, Plasticity of nanostructured Cu–Nb-based wires: Strengtheningmechanisms revealed by in situ deformation under neutrons,Scripta Mater. 60(2009)171-174
P, et al,Instability mechanisms in lamellar microstructures,Acta Materialia.48 (2000)875-889

Further investigation made by Kamoji et.al [5] on two bucket helical Savonius rotor with and without shaft with a bucket twist angle of 90° at different overlap ratios of 0.0, 0.1 and 0.16 and compared their results with conventional Savonius rotor.
Damak et.al [6] conducted experiments on two bucket helical Savonius rotor at bucket twist angle of 180° and compared their results with conventional Savonius rotors particularly in terms of overlap ratios and Reynolds number.
Later on Deb et.al [10] studied the performance of helical roror at 10° twist angle.
Accordingly, it is observed from the result that for all overlap conditions the same trend persist i.e. both power and torque coefficient of the rotor increases with the increase in tip speed ratio up to a certain limit which is also reported by Kamoji et al. [5].
[11] Mahmoud, N.H., El-Haroun, A.A., Wahba, E., Nasef, M.H., An Experimental Study on Improvement of Savonius rotor Performance.

., fracture energy and fracture toughness) were used to assess the influence of different steel fiber types in accordance with the analysis conducted by Reda et al. [17], Al-Tayeb et al. [18], Alwesabi et al. [19].
M., El-Dieb, A.
S., Abd El-Wahab, M.
[18] Al-Tayeb, M.

Numerical Investigation of Seismic Behaviour for a Flexible Cantilever Retaining Wall with Cohesive Backfill Bouraida El Yamouni1,a*, Fadoua El Khannoussi2,b and Abdellatif Khamlichi1,c 1Research team 3M, Laboratory ICST, National School of Applied Sciences at Tetouan, Abdelmalek Essaadi University, Tetouan, Morocco 2Research team AMSCG, Laboratory ICST, National School of Applied Sciences at Tetouan, Abdelmalek Essaadi University, Tetouan, Morocco abelyamouni@uae.ac.ma, bfelkhannoussi@uae.ac.ma, cakhamlichi@uae.ac.ma Keywords: Flexible retaining wall, Seismic response, Dynamic earth pressure, Cohesive soil, Analytical methods, Finite element method.
Also, analysis by Lew et al. [23] on the performance of several retaining walls under the action of some recent ground motions has reached a similar conclusion.
A comparison is also made with conventional pseudo-static analytical methods such as those of Prakash [14], Puri et al. [15] and Shukla [16].
These scaled dimensions are exactly the same as those used in a previous work by Bakr et al. [26].
In the simulations performed in this study, a partially rough interface that corresponds to the situation of the centrifuge test “model A” in Jo et al. [25] was implemented.

XRD pattern of raw and sintered clay; K= kaolinite (Al2O3·2SiO2·2H2O), Q= quartz (SiO2), I= illite (Al,Mg,Fe)2(Si,Al)4O10[(OH)2,(H2O)], M= mullite (3 Al2O3 · 2 SiO2), Mu=Muscovite (KAl2(AlSi3O10)(F,OH)2) DTA and TGA of the sample showed various exothermic and endothermic peaks due to combination of kaolin with starch and glycerol.
The endothermic peak at 256°C was due to the removal of glycerol which acted as a binder to the compacted materials, this result agrees with that of Margarida et al., 2009 [7].
Nardou, Contribution to porous mullite synthesis from clays by adding Al and Mg powders, Journal of the European Ceramic Society 29 (2009) 31–38
El-maghraby, Characterization and assessment of Saudi clays raw material at different area, Arabian Journal of Chemistry. 3(2010)271–277

W.Y.Li et al.[1]Employed three examples of box-girder bridges of different geometrical shapes to demonstrate the accuracy and versatility of the finite strip method.
Kaoru et al.[2]Provided the information required to formulate an effective width rule for design of curved girder bridges and the theory used in this analysis is the refined beam theory.
Yasunori et al.[3]Investigated on response and slip behaviour of curved composite box girders with end diaphragms and also conducted a parametric study to evaluate the effect of cross sectional deformation on the stresses of the girders.
Ayman et al. [7] Conducted a detailed investigation of warping related stress of composite steel concrete box girder bridges of different radius of curvature and span length Methodology · A flyover in Kerala which is a prestressed trapezoidal box girder bridge is chosen for the study.
Okeil,and Sherif El-Tawil, “Warping Stresses in Curved Box Girder Bridges: Case Study” Journal of Bridge Engineering, Vol. 9,pp.487-496, September1,2004 [8] Byung H.

Introduction Alekseev et al. [1] discovered that dimples might be useful for drag reduction in 1998.
Xu Zhong et al. [4] have studied the dimpled surface utilizing the direct numerical simulation (DNS) and otained a drag reduction efficiency of 15.1%.
Zhang C C et al. [5] have performed experiments using dimpled surfaces for bodies of revolution, and got a total drag reduction efficiency 2.98 % with the Reynolds number.
The variation of drag reduction with development of dimple depth For the periodic dimpled surface, Xu Zhong et al. have reported that there is reverse flow at the bottom of the dimples performing as micro-rolling bearing, which can fix the flowing vortex.
Vasconcelos and E.L.

Fig.4 is the EDX analysis which reveals the presence of elements Al, Fe, C, and O in the prepared nanocomposite.
References [1] Hamidreza Sadegh et.al.
[4] Chahrazed Boukhalfa et.al,“Removal of Copper from Aqueous Solutions by Coprecipitation with Hydrated Iron Oxide”, Asian Journal of Chemistry Vol. 19, No. 6 (2007), 4267-4276
[6] Mona Mahmoud Abd El-Latif et.al, “Alumina/Iron Oxide Nano Composite for Cadmium Ions Removal from Aqueous Solutions”, International Journal of Nonferrous Metallurgy, 2013, Vol 2, Pp 47-62.

Adding the ferrite forming elements such as Cr, Si, Al, Mo, which can change the phase in stainless steel from single austenite structure to a duplex structure of austenite and ferrite, is a valid method to avoid intergranular corrosion.
Yu Jiakang, Cao Chunan et al [15] used the photochemical laser imaging technology and resonance Raman spectrum method, to assess the intergranular corrosion sensitivity of sensitized stainless steel, and point out that the 1Cr18Ni9Ti will have a serious intergranular corrosion sensitivity when the sensitization time is long.
Zhao Changjiu et al [16] researched on the sensitivity to intergranular corrosion of 1Cr18N i9Ti by EPR method and oxalic acid etching method.
Besides, Yu Xiaofei et al made a comprehensive analysis on the various criterions of EPR method evaluating the sensitivity to intergranular corrosion of stainless steel [17].
[3] R Abdel-Karim , I Elmahallawi and K El-Menshawy: Microstructure and corrosion properties of nitrogen stainless steel 316L produced by hipping [J].

Arunachalam et al (2004) observed that the residual stress at the turned surface of Inconel 718 superalloy was compressive at the outer diameter, gradually increasing to tensile at the inner diameter [3].
RR1000 is manufactured via powder metallurgy route with a chemical composition of 15% Cr, 18.5% Co, 5% Mo, 3% Al, 4% Ti, 2% Ta, 0.06% Zr, 0.027% C, 0.015% B, 0.5% Hf and Ni balance.
Li et al. (2006) correlated the measured plastic work with FWHM and thus obtained a calibration curve [1].
This is consistent with the observations of Preuss et al. [11] and relates to changing solute concentrations due to changes in g’ precipitation. d0 falls to the level of the parent material at ~90μm suggesting that the heat affected zone (HAZ) extends to this depth; d0 drops sharply over the first 10mm being slightly sharper for the outer radius (.
El-Wardany, H.