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Moës et al. [3] have excluded remeshing operations by adding discontinuous functions in the base enrichment.
Experimental determination of the dynamic stress intensity factors has been proposed by Bui et al. [4].
Initially, Doyle et al. [5] showed, using finite element method, that the behavior of SIF as a function of frequency is very similar to a modal response.
A continuation of the latter study is done by Galenne et al.[6].
A new expression proposed by Galenne et al. [6] for computing the modal stress intensity factor given for mode I: . (14) where is the modal stress intensity factor of the ith eign mode.

Soliman, Influence of 8-hydroxyquinoline addition on the corrosion behavior of commercial Al and Al-HO411 alloys in NaOH aqueous media, Corr.
El-Etre, Inhibition of aluminum corrosion using Opuntia extract, Corr.
Ordodib, Al.
El-Etre, Inhibition of aluminum corrosion using Opuntia extract, Corros.
Rao, Starch as an ecofriendly green inhibitor for corrosion control of 6061-Al alloy, J.

Nayak et al., 2007[5].
El-Hendawy, Porosity development in activated carbons obtained from date pits under chemical activation with phosphoric acid, Microporous and Mesoporous Materials., vol 52 (2002),105–117
El-Hendawy, Andrew J.
Cerrella, A.L.

Res. 34 (4) (2001) 257–264 [2] El-Sayed, M.
Carter, A.L.
] [8] Maier S A，Brongersma M L，Kik P G，et aL Adv．Mater．2001，13(9)l 1501
El-Sayed, Why gold nanoparticles are more precious than prett gold: noble metal surface plasmon resonance and its enhancement of the radiative and nonradiative properties of nanocrystals of different shapes, Chem.

The population difference of two levels(Nl-Nh) is given below: ()1 p h lh l l J NN eL τ τ τ ⎛⎞ ⎛⎞ −= −⎜⎟ ⎜⎟ ⎝⎠⎝⎠ (3) where Jpis the pumping current density, e is the free electronic charge, and L is superlattice period, τl is light hole life time, τh is heavy hole life time.
El Kurdi, G.
Bruhnes, et al, Appl.Phys.Lett., Vol.77 (2000), p3224
Gennser, et al, Science Vol.290 (2000), p2277

Schultz et al. [6] reported that the conduction mechanism of the heavily deformed Bi2Te3 single crystal was changed from p-type to n-type due to the generation of Te vacancies (VTe) which act as donors.
Also, Navratil et al. [7] proposed an interaction of such vacancies with the antistructure defects, according to 2VBi(Sb)+3VTe+Bi (Sb)Te = VBi(Sb)+Bi (Sb)Bi(Sb)+4VTe+3e, where e is the newly produced electron.
The electrical resistivity of the Bi0.5Sb1.5Te3 compounds. 250 300 350 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Thermal conductivity(W/mK) Sintering temperature( oC) κ tot (non-reduction) κ ph (non-reduction) κ el (non-reduction) κ tot (reduction) κ ph (reduction) κ el (reduction) 250 300 350 0 1 2 3 4 Figure of Merit (K -1 ) Sintering temperature( oC) non-reduction reduction Fig. 5.

Recently, Kumar[8], Deswal[9], Othman et al.[10], El-Karamany[11], Song[12], Singh[13,14], Kumar and Sharma[15] have studied various problems on wave propagation at interface between different half-spaces with microstructure by micropolar elasticity theory, micropolar generalized thermoelasticity theory or micropolar generalized thermoviscoelasticity theory.
Zaki,et al.
El-Karamany.Int.

El.
El.
Cardoso, et al.
Li, et al.

Petrillo et al. [45] studied the sustainability of geopolymer paving block production.
Al - Fakih, W.
El – Sherbiny, A.A.M Abo El–Magd, A.
El Nagar (2016) Engineering of low cost geopolymer building bricks applied for various construction purposes, International Journal of Civil Engineering and Technology, 7 (4) 81 – 99
Mustafa Al Bakri, H.

Matyunin et al.
Matyunin at al. presented an equation
Hernot et al. [24] to determine the parameter for a spherical indenter, a power dependence was used: , (31) where and are obtained as a result of finite element modeling, hc is the depth along which the indenter contacts the material..
El Abdi, G.
El Abdi, An experimental method to determine the contact radius changes during a spherical instrumented indentation, Mech. of Mat. 40 (2008) 401–406