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Al-Wahaibi , A.R.
Al-Hashmi , Y.
Al-Wahaibi , A.
Al-Ajmi, A.
Saad, A.L.

[3] Heber AJ, Ni JQ, Lim TT, Schmidt AM, Koziel JA, Tao PC, et al.
[19] Du N, Zhang H, Chen B, Ma X, Liu Z, Wu J, et al.
[22] Neri G, Bonavita A, Galvagno S, Caputi L, Pacile D, Marsico R, et al.
[28] Wheeler EF, Zajaczkowski JS, Topper PA, Gates RS, Xin H, Casey KD, et al.
[30] Predicala BZ, Cortus EL, Fengler R, Christianson SK.

In the case of titanium alloys, the Ti-6Al-4V alloy has received the main attention, for aluminium alloys, most of the studies were focused on Al-Mg (5000 series), Al-Zn (7000 series) and Al-Cu (2000 series) whereas for magnesium alloys, they were mainly focused on AZ (Mg-Al) and ZK (Mg-X) alloys.
At the opposite, intermetallic forming elements, such as Mg in Al alloys, can form Mg-Al clusters, decreasing diffusivity and finally inhibiting GBS [17].
Portnoy, Superplastic deformation mechanisms in fine grained Al-Mg based alloys, Mater.
Yin, et al., Excellent superplasticity and deformation mechanism of Al–Mg–Sc–Zr alloy processed via simple free forging, Mater.
El Mehtedi, J.A.

Fan Aiming, et al [17] made a study on the failing impeller of a slurry pump.
FAN et al. [25] and ZHENG et al. [26] suggested that with a prerequisite of appropriate corrosion, increasing the wear resistance is a feasible means to improve C-W resistance and prolong the service life of the part that work under severe wear conditions.
X M Zhao et al. [40] applied the modified neighbourhood rough set model to the fault diagnosis of slurry pump impellers.
Jallouli et al., Int.
Abd El-Badia, Wear 264 (2008) 826–837

Kalen et al. [6] utilized (i) bulk SiO2 for O indiffusion from the surface, whereas Cawley and Boyce [7] and Uematsu et al. [8,9] performed (ii) an oxidation of a Si wafer through an already existing top SiO2 layer.
The solid line and open triangles (∆) represent the data of Kalen et al. [6].
According to Martin-Samos et al. [17] these conditions favor the formation of VO and ISi.
Experiments with varying thicknesses of x2 were performed in this work for O and by Tsoukalas et al. [18], Mathiot et al. [2], and Fukatsu et al. [3] for Si.
Vol. 112 (2004), p. 559 [16] E.L.

Then, the relation of Agullo-Lopez et al.
Fig. 3 SEM micrographs of pure ZnO (a) and ZnO:Al 0.5 at.% (b).
Fig. 6 Sulfidation reaction rate versus time at 350°C of pure ZnO, uncorrected ZnO:Al 0.5 at.%, and corrected ZnO:Al 0.5 at.% at 950 mbar under H2S 5 vol.%.
Haneda et al. [24] (5.91 eV) and Moore and Williams [25] (7.20 eV) found higher activation energies while Cooper et al. [27] found a much lower value of 1.22 eV.
Moore and E.L.

Impact of Point Defects on the Luminescence Properties of (Al,Ga)N Shigefusa F.
Filtered 99.999%-pure NH3 and 99.9999%-pure metallic Al were used as the sources.
The supply ratio of NH3 to Al (V/III ratio) was varied between 60 and 433 by varying the beam equivalent pressure (BEP) of NH3 (1.8×10-3 to 1.3×10-2 Pa) with a fixed BEP of Al (2.2×10-5 Pa).
Recently, a 210 nm electroluminescence (EL) was demonstrated from an AlN p-i-n homojunction LED at room temperature [51].
Normalized CL spectra measured at 11 K of AlN epilayers grown under various supply ratios of NH3 to Al (V/III ratios) and Tg.

These results are in agreement with those reported by Benosman et al. [33], Ghernouti et al. [34] and Kou et al. [10].
These results are in agreement with those reported by Kou et al. [10], Benosman et al. [11, 35] and Senhadji et al. [39].
These results are close to those of Benosman et al. [33] and Ganesan et al. [14].
These findings are close to those of Benosman et al. [40].
These results are in line with those of some previous research’s (Benosman et al., [25], Afridi et al., [43] and Belbachir et al. [44]).

Andersson et al. [8] studied liquid film heat transfer across a horizontal sheet.
Ghaly [9], Raptis et al. [10] researched the radiation effect on MHD flow.
Siri et al. [19] studied warmth transmission across a stretched surface under suction.
Comparison with earlier findings of Nazari et al. [24], Ismail et al. [25], Sarma and Sarma [26].
El-Khatib (2021) Magnetohydrodynamic fluid flow due to an unsteady stretching sheet with thermal radiation, porous medium, and variable heat flux.

Sample analysis Soil TOC, TN and soil microbial biomass were determined by potassium dichromate heating method, the Kjeldahl method and chloroform fumigation extraction method, respectively(Brookes P C et al.1985,Tenkinson D S et al.1976).
(OCIO J A et al.1990, VANC E D et al.1987).
Discussion Under natural conditions, generally there are two types of the diurnal variation curve of plant photosynthesis: single peak and double peak (Zhi'an Zhang et al.2006, Yang J D et al.2002).
Otherwise, it was caused by non-stomatal factors (Davison B et al.2007).
(In Chinese) [8] Brookes P C, Land man A，Pruden G, el al.soil BoilBoichern ,1985,17:837-842