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Ezugwu et al [4] have analyzed the effect of the machining parameters on flank wear during the machining of the nimonic C-263 alloy; they have reported that increasing the cutting speed and depth of cut results in accelerated flank wear.
Ezugwu et al [1] have reported that the machining of the nimonic C-263 alloy with PVD coated carbide offers greater advantage, due to its higher resistance to characteristic wear mechanisms.
The chemical composition of the work piece material is as follows (Wt%): 52.49 Ni, 0.19 Si, 0.46Mn, 20 Cr, 6.29 Mo, 0.07 Cu, 1.0 Fe, 16.7 Co, 1.94 Ti, 0.48 Al, 0.04 Nb, 0.15 W, 0.02 V, 0.02 C,0.001 S,0.007 Ta.
I.A Choudhury, M.A El-Baradie (1998) Machinability of Nickel-based Super alloys: a general review, International Journal of Materials processing, 278-284, 1998. 2.
K.Palanikumar, K.Shanmugam,J.Paulo Davim, Analysis and optimization of cutting parameters for surface roughness in machining AL/SiC particulate composites by PCD tool, international journal materials and product technology, Inder science enterprises Ltd, Vol 37, 117-128,2010.

Roth et al., Ordered Mesoporous Molecular Sieves Synthesized by a Liquid-crystal Template Mechanism, Nature 359 (1992) 710-712
Juang et al., Application of MCM-41 for dyes removal from wastewater.
El-Rassy, Adsorption kinetics and thermodynamics of azo-dye Orange II onto highly porous titania aerogel, Chem.
Damardji, et al., Preparation of TiO2-pillared montmorillonite as photocatalyst Part I.
Xue et al., Hybrid surfactant-templated mesoporous silica formed in ethanol and its application for heavy metal removal.

Noorani et.al [18] has investigated turbulent flow on straight to curved since turbulent flow is dominant in such condition.
The effect of turbulent Prandtl number has been investigated on 2010 by Ould-Rouiss et.al which shows that this parameter has caused near-wall flow spread to the mean section [19].
According to relation between molecular viscosity and turbulent viscosity proposed by Yakhot and Orszag et.al [20] that valid for 2.5 x 104 < Re < 106, and according to Yakhot et.al [6] that use dimension of space d = 3 [20] for unspecified large Re application of ratio between molecular viscosity and turbulent viscosity with smaller range and specified Re is needed.
Yakhot et.al [20] described that heat condutctivity has not been satisfactory decrbed in low Prandtl number.
El-Askary, “On the performance of linear and non-linear k-e turbulence models in various jet applications,” European Journal of Mechanics B/Fluids, vol. 30, pp. 325-340, 2011

References [1] Al-Amoudi OSB, Khan K, Al-Kahtani NS.
[3] Ismail A, Baghini MS, Karim MR, Shokri F, Al-Mansob RA, Firoozi AA, et al.
[6] Van Gemert D, Czarnecki L, Maultzsch M, Schorn H, Beeldens A, Łukowski P, et al.
[9] Shaker FA, El-Dieb AS, Reda MM.

Compared with FT-IR spectrum of Palygorskite (curve a), the bands around 1000cm-1, resulted from Si-O-Si (Al) of Palygorskite, changed in the CP (curve b) and IIPs (curve c).
El-Ghamry and P.
Hasan, et al.: J.
Boddu, et al.: Bioresour Technol., Vol. 100 (2009), p. 194 [10] N.
Jin, et al.: J.

Peiris et al. reported that the rGO interlayers incorporated TiO2 photoanode using electrophoretic method achieved an efficiency of 6.2% [13].
Ramamoorthy et al. used rGO modified titania photoanodes to fabricate DSSC which performed the highest efficiency of 6.61% [14].
Recently, Kumar el al. produced DSSC with rGO-TiO2 nanocomposite as photoanode that was prepared using hydrothermal method and achieved efficiency up to 6.9% [15].
Hu et. al [19].
Al Nafiey, A.

Laidoudi et al. [10] performed a numerical research on the free convection from a hot cylinder of special cross-sectional form confined within a cold circular cylinder.
Zhang et al. [13] investigation the natural convection of rotating cylinder confined in square cavity.
Between two concentric cylinders and under the thermal buoyancy, Abu-Nada et al. [14] filled the annular with water-based naofluids.
To do so, we have simulated the same geometry studied by Abu-Nada et al. [14] and Matin and Khan [9].
Al-Kouz1, A.

In a significant divergence from traditional ways of producing alloys, Cantor et al. and Yeh et al. independently came up with the idea of making multicomponent alloys with components in nearly the same atomic percentage of the mixture.
Yeh et al [3] named these alloys as high-entropy alloys, pointing out the well-known thermodynamic fact that the entropy of mixing (Eq. 2) of a binary alloy is maximum when the elements are in equal atomic percentages, and that the maximum configurational entropy (Eq. 3) in any system increases with increasing number of elements (N) in the system (Fig. 1) [1].
Yeh et al. proposed that the high entropy of mixing makes these alloys prone to form solid solutions, including disordered and partially disordered solid solutions.
Yeh et al [15] presented an example of the cocktail effect, illustrated in Fig. 3.
El-Hadad, High Entropy Alloys: The Materials of Future, Int.

Among other preoccupations continued in the next years: - advanced technologies for molding (isostatic compression, powders drilling, injection molding, extrusion, sintering through powders mixtures infiltration); - development of advanced materials (composites with diamond and carbides metallic matrix, sintered maraging steels (martensitic), heavy alloys with Wolfram as base, permeable materials of - high porosity, technical ceramics, alloys powders Ni-Cr-Si-B, Co-Cr-W-C and Ni-Al for thermal projection etc.
I, EL, Akademie Veriag, Berlin (1963) [9] H.

As mentioned by Liu et al. [19], the parameters (C, γ) tend to change similarly, which is independent from ε.
El-Gohary, A.