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Ameziani 1,2 1 Laboratoire TPMP, Faculté de Génie Mécanique et Génie des Procédés, USTHB -BP 32 El Alia, Bab Ezzouar, Algiers, Algeria 2 Université de Cergy-Pontoise LEEVAM- Neuville Sur Oise 95031, France a omar.rahli@u-cergy.fr, b khedbouh@yahoo.fr, c rachid.bennacer@u-cergy.fr Keywords: PRB flow, Mixed convection, Heat and mass transfer, Rectangular duct.
In the case of mixed convection with buoyancy effects due to thermal diffusion, Cheng et al. [9] discussed mixed convective heat transfer in the entrance region of a rectangular duct at a large Prandtl number.
With combined buoyancy effects, Lin et al. discuss the heat and mass transfer in a vertical pipe [11] and in horizontal square duct [12]; a uniform temperature and concentration was assumed at the bottom wall.
A combined experimental and numerical investigation was carried out by C.Yu et al. [14].

By exploiting a mixed laminated theory with a high order displacement field, Correia et al. [5] discussed the active control of axisymmetric shells with piezoelectric layers.
Ottavio et al.[6] gave the closed-form solutions for the free-vibration problem of simply supported, orthotropic piezoelectric shell.
Using a semi-analytical axisymmetric shell finite element model, Santos et al.[10] studied the bending and free vibrations of multilayered cylindrical shells with piezoelectric properties.
Value of material constants Material EL(GPa) ET(GPa) GLT(GPa) GLZ(GPa) GTZ(GPa) Kevlar-epoxy 132.4 10.8 5.5 5.6 3.6 0.24 1580 PZT5 62 62 23.6 23.6 18 0.31 7750 PVDF 4 4 1.54 1.54 1.54 0.3 1800 Material Kevlar-epoxy ―― ―― ―― ―― ―― ―― PZT5 7.209 7.209 2598 2598 2598 PVDF 0.044 0.044

Synthesis of Gold Catalyst The gold catalyst on different mesoporous silica materials (MSM) can be prepared with direct synthesis method, which is also known as co-condensation or one-pot synthesis.VTES as functionalizing agent of Au/SBA-15 catalysts can prepared by a one-pot method, using a TEOS:VTES and HAuCl4 solution as gold precursor according to Wu et al. [6].
Fiorucci, et al., J.
Orlandi, E.L.
Sipila, et al,Oxidative degradation of monomeric and dimeric phenylpropanoids: reactivity and mechanistic investigation, Chem Soc, Dalton Trans, 15 ( 2002) 3007–14.

[3] Sonbatry El, Khashaba U.A, Machaly T, Factors affecting the machinability of GFRP/epoxy composites, Comp Structures, 63 (2004) 329-338
[8] M.Chandrasekaran, D.Devarasiddappa “Development of Predictive Model for Surface Roughness in End Milling of Al-SiC Metal matrix Composites using Fuzzy logic”, Engineering and Technology 68 (2012) 1271-1276 [9] Sureshkumar Manickam Shanmugasundram et.al, Experimental Investigation of Prediction of Hole quality Characteristics of Aluminum Matrix Composite (AMC225xe).
[10] Vikram Banerjee et.al,Design space exploration of mamdani and sugeno inference systems for fuzzy logic based illumination controller, International journal of VLSI and Embedded system-IJVES (2012) 97-101

According to Khan et al [20], based on results in wood, this hydroxyl (OH) activity may be associated not only to adsorbed water onto the fiber surface but also to alcohols existing in the fiber constituents such as cellulose, hemicellulose and lignin.
For instance, the 900 cm-1 band was indicated by Ray et al [23] as due to β-glucosidic linkage.
Hischier, A.L.
Dusfrene, W.K .El-Zawawy and F.A.

Armstrong-Helouvry et al. proposed a seven parameter model where sub-models were used to describe the sliding and presliding frictions [2].
Canudas de Wit et al. proposed the LuGre model to combine the sliding friction and presliding friction [3].
For identifying the parameters of the friction model, Lin et al. proposed a GA based optimization method to search the parameters of the nominal models for the PMLM-actuated stage [4].
Dahl, “A solid friction model,” Aerospace Corporation, El Segundo, CA, technical report, TOR-0158 (3107-18)-1, 1968

However, a large number of Mg alloys used for casting are confined to Mg-Al system such as AZ91 or AM60 alloys.
Experimental Procedure AZ91 alloy (Mg-9.2wt.% Al-0.75wt.% Zn-0.21wt.% Mn) and experimental MX alloy (Mg-Sn-X) were studied in the present study.
[µm] Average particle size (matrix) [µm] Squeeze cast AZ91 11.6 53 11 0.3 Squeeze cast MX 13.0 60 13 0.5 Die cast AZ91 10.8 15 3 - Die cast MX 10.3 16 2.5 0.04 0 50 100 150 200 250 Strength (MPa) 0 4 8 12 16 20 Elongation (%) YS UTS El.
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Miller, et al.

Kumar, et al: Journal of Materials Science (2009), p. 1393 – 1400
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Sanad, et al: Wear Vol. 253 (2002), p. 699 – 710
Lee, et al: Tribology Letters Vol. 27 (2007), p. 301 – 306