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Other elements detected include sulfur (S) (0.8%), Ca (0.5%), Al (0.3%), and titanium (Ti) (0.5%).
El-Shekeil, M.U.
El Mansouri, F.
El Mansouri, M.A.
El-Shekeil, S.M.

Elemental analysis shows the molar ratio of Zn to Al in LDH is 2.9 compared to 0.75 in the LDH-HPP nanocomposite.
Sanchez, E.L.
Jin, Synthesis and characterization of Naproxen intercalated Zn-Al layered double hydroxides, Colloid.
Ulibarri, Layered double hydroxide as adsorbent and carries of the herbicides (4-chloro-2-methylphenoxy)acetic acid (MCPA) system Mg-Al, Mg-Fe and Mg-Al-Fe, J.
Long, Synthesis of organo-mineral nanohybrid material: indole-2-carboxylate in the lamella of Zn-Al- layered double hydroxide, Mater.

The mechanical and electrical properties of the Al-Mg-Si alloys can be changed by heat treatment.
Most previous research on Al-Mg-Si alloys focused on two parameters; artificial aging and time [1-3].
It is well known that solution-treated Al-Mg-Si alloys undergo natural aging when they are stored at room temperature.
In this study we focus on Al-Mg-Si alloys (6101 series), which have advantageous mechanical and electrical properties.
Mg Si Fe Cu Al 0.687 0.589 0.211 0.020 bal 3.

Empowering Leadership (EL) Empowerment is a concept that refers to a “paradigm change in the managerial focus from control to autonomy in organizational research” [25,25].
‏ [13] Al-Ansari, Y.
M., & Al-Hawari, M.
[76] Al-Hawari, M.
M., Abukhait, R., & Al-Hawari, M.

Litvin et al. [2], Xiao Wangqiang el al.[3] studied the contact stress of spur gear with asymmetric involutes.
Tengjiao Lin et al. [4] researched contact stress of standard helical gear by FEA.
Li Ning et al. [7] designed helical gear with asymmetric involutes which driving side surface is large pressure angle profile, and researched manufacture method and meshing theory.
References [1] A.L.
[3] Xiao Wangqiang, Li Wei, Han Jianyou et al.

Larson, A.Kremer et al. (1999) J Clin Oncol 17: p. 948 [2] M.
Ohno et al. (1998) J Biomed Mater Res 39: p.536 [5] L.
Araki et al. (1992) J Ortho Res 10: p. 440 [8] J.
Legnani et al. (2005) J Neurosurg Spine 2: p. 303 [10] D.
Wiernik, et al. (1990) J Clin Oncol 8: p. 1263 [13] M.

The types and the characteristics of the pulmonary acoustic signals that are widely accepted has been reported by Pasterkamp et al.,[4].
In the work of Güler et al., [5], Normal, wheeze and crackles pulmonary acoustic signals were distinguished using power spectral density features.
Alsmadi et al., [6] in 2008, proposed auto regressive model for classifying pulmonary acoustic signals.
Flietstra et al., [8],used support vector machine in recognizing pulmonary acoustic signals.
El-Qawasmeh, Performance of KNN and SVM classifiers on full word Arabic articles, Advanced Engineering Informatics. 22 (2008) 106-111

Altug et al. presented control methods for quadrotors using visual feedback as the primary sensor [7].
Carrillo et al. estimated the X-Y-Z position of the airframe with respect to a landing pad by an on-board camera [8].
For instance, Hamel et al. [10] and Guenard et al. [11] proposed backstepping control laws based on the full dynamics, which integrates the dynamics of image features and quadrotor.
Huang, et al., Precision flight control for multi-vehicle quadrotor helicopter testbed, Control Engineering Practices. vol. 19, no. 9 (2011) 1023-1036
El-Shafie, Performance enhancement of MEMS-based INS-GPS integration for low-cost navigation applications, IEEE Transactions on Vehicular Technology. vol. 58, no. 3 (2009) 1077-1096

Some research has been done on elastic properties of rare-earth doped glass such as BiB2O3.Gd2O3 (Saddeek, 2012)[2], TeO2.V2O5.CeO2 (Mallawany et al, 2000c)[3], P2O5.Sm2O3 (Sidek et al,1988)[4] and P2O5.La2O3 (Mierzejewski et al,1988)[5].
According to Gebavi et al in 2009, when Tm3+ is added into a glass system, it acts as a network modifier which produced cleavage of the glass network and creates non-bridging oxygens, NBOs [10].
According to Balaji et al (2014), Poisson’s ratio is a measure of cross-link density in the glass network.
El-Mallawany, M.
Al-Shamiri, A.

Ziar2,3, A.L.
The so-called copper texture develops in almost all the pure CFC metals (Cu, Al, Ni) or weakly alloyed after rolling at low temperature.
According to the work of Zidani et al [8-10] when the level of deformation increases, the drawn wire acquired a textured microstructure (fibrous texture).
Works have shown that the electrical resistivity increases with the content of impurities and this linearly for very low grades up to 0.2%, Pops et al [16].
Baira, M.Bayarassou, A.L.