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Abu El-Rub et al.[9] have divided tar removal catalysts into nine groups, namely calcined rocks, olivine, clay minerals, ferrous metal oxides, char, fluid catalytic cracking catalysts, alkali metals, activated alumina, and transition-metal-based catalysts, particularly nickel (Ni).
Xu et al. [22] developed nickel-on-modified olivine (Ni/MO) catalysts prepared by wet impregnation for benzene steam reforming.
In the experiments of Li et al. [25], different ratios of MgO and CaO were mixed to simulate dolomite as Ni support.
Wang et al. [27] prepared Ni-Co/Al2O3 catalyst for steam reforming of biomass tar.
Abu El-Rub, E.

Eight Ti-Al-Mo-Fe alloy candidates were pre-designed according to the Bo-Md method.
At least three samples of each condition were tested for an average value of ultimate tensile strength (UTS), yield strength (YS) (that is, 0.2% proof stress in this study), elongation (El).
However, it seems too hard to find the effect of Al addition on strength or ductility.
Nevertheless, in both 1% Fe and 2% Fe contained alloys, the elastic moduli E declines with increasing the Al addition.
But theoretically mentioned as above, the elastic moduli of Ti should increase drastically with increasing Al content.

Wear of Mg-5%Al-5%Nd Alloy with Nanocrystalline Grain Size C.Y.H.
This paper explores the wear characteristics of nanocrystalline Mg-5%Al-5%Nd, synthesized by mechanical alloying.
This work seeks to contribute to this field by examining the wear behaviour of nanocrystalline Mg-5%Al-5%Nd alloy.
Nanocrystalline Mg alloy samples of nominal composition Mg-5%Al-5%Nd were prepared by mechanical alloying.
Material Grain Size (nm) Hardness (HR15T) 0.2%YS (MPa) UTS (MPa) E (GPa) Ductility (%EL) Micro 250 73 211 277 39.05 3.3 Nano 43-90 87 436 483 44.89 2.59 Table 1 Selected properties of pin specimens used in this study [6].

Introduction Aluminum alloys are widely used in aerospace and automobile industries due to their low density, good mechanical properties and corrosion resistance [1-3] .Copper additions up to about 5.0 wt. % lead to alloys with very high strength and good toughness when subjected to natural or artificial aging [4,5].The Al-Mn, Al-Ti-B, Al-Zr and Al-V master alloys and pure Cd are added to Al-5wt.
Haszleret. al.
Vol.17 (2007) p.496-501( in Chinese) [5] E.L.
Microstructural evolution during partial remelting of Al-Si7Mg alloys.
Heredity study and application of Al-Ti-B master alloy.

Jamal El-Din Abdalla, University of Sharjah, United Arab Emirates Prof.
Ghazi Al-Khateeb, University of Sharjah, United Arab Emirates Assoc.
Ahmed Mancy Mosa, Al-Mansour University College, Baghdad Dr.

El-nahass, M.
El-denglawey, Structural and optical properties of nano-spin coated sol−gel porous TiO2 films, T.
Al-Sayari, M.S.
Al-Assiri, Mesoporous Ag/ZnO multilayer films prepared by repeated spin-coating for enhancing its photonic efficiencies, J.

., Yuan J. and El-Sherif M.[3] researched the optical fiber integration into textile structures, and defined the proper methodology for the manufacturing of smart textiles.
Cherenack Kunigunde, Zysset Christoph and et al. [4] developed woven electronic circuits combining thin-film electronic devices and commercial integrated circuits with plastic fibers.
References [1] Sastry Usha Rashmi Bhaskara: Technical Textiles International, Vol. 13(4) (2004), p. 31 [2] Chan Vili and Yvonne Y.F. : Textile Research Journal, Vol. 77(5) (2007), p. 290 [3] Khalil S., Yuan J. and El-Sherif, M.: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5270 (2004), p. 38 [4] Cherenack Kunigunde, Zysset Christoph and et al.: Advanced Materials, Vol. 22 (45) (2010), p.5178

Kaye et al [4] used response surface methodology in predicting tool flank wear using spindle speed change.
Alauddin et al [5] applied response surface methodology to optimize the surface finish in end milling of Inconel 718 under dry condition.
El-Baradie (1999), ‘Machinability assessment of Inconel 718 by factorial design of experiment coupled with response surface methodology’, Journal of Material Processing and Technology 95 pp. 30 – 39
El Baradie, M.S.J.

Although further neutron fluence data are not available yet, work by Hollenberg, et al., implies that irradiation to ~80 dpa-carbon did not spoil the integrity of CVI SiC matrix [25].
Hayner, E.L.
El-Guevaly, S.
Norajitra and e. al. in 21st Symposium on Fusion Technology, Madrid, Spain 2000
El-Guevaly, Fusion Engineering and Design 48 (2000) 371- 378

[3] Defect and Dislocation Density Parameters of 5251 Al Alloy Using Positron Annihilation Lifetime Technique M.
Introduction Positron annihilation spectroscopy (PAS) studies have been completed on binary Al alloys to measure the activation energies for the migration of solute atom-vacancy complexes[1,2] as well as to detect vacancy-rich clusters in Al-Mn Al-Zn-Mg, and Al-Cu-Zn alloys after quenching or after aging at relatively low temperature[3-4].
MacKenzie at al. [15] for thermal vacancies in metals, Brandt et al. [16] in ionic crystals, and Dekhtyar et al. [17] after plastic deformation of semiconductors.
Figure 2 Positron spectra for 5251 Al alloy with zero and 20.1% deformation 3.
Phys., 35 (1996) 4827 [20] E.A.Badawi, M.A.Abdel-Rahman and E.M.Hassan, Materials Science Forum, 445 (2004) 45 [21] E.A.Badawi, M.A.Abdel-Rahman and N.Z.El-Sayed.