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While, El-Kady et al, fabricated micro-supercapacitor based on the direct laser writing in a standard LightScribe DVD burner to reduce graphite oxide films [15].
El-Kady, V.
El-Kady and R.
El-bab, K.
Fath El-Bab, and A.

Al-Sabagh, Chemical Physics 85 (2004) 273-279
El-Din and‎ A.M.
Al-Sabagh and H.M.
El-Feky, M.N.
Al Sabagh, N.G.

The electrochemical, optical, photoluminescent (PL) and electroluminescent (EL) properties of the copolymers were studied.
Y Cao et al. [5] compared the photo-electrical and electro- luminescence properties of the PFO-DBT copolymer and the blend of PFO and DBT.
Electroluminescent properties A single layer device was fabricated in the configuration: ITO/ PEDT/PFO-DBT/Ba/Al.
The EL spectra from such device are presented in Fig. 3.
EL peaks are 8-14 nm blue shifted in comparison with that of PFO-DBT15.

El-Dawayati1,a*, Zeinab E.
El Sayed, M.
El Hadrami, F.
El Abed, M.
El Sharabasy.

Abd El Haleem, E.E.
Abd El Aal, S.
Abd El Wanees, A.
Zein El Abedin, E.M.
Zein El Abedin et al, Additive free electrodeposition of nanocristalline aluminium in water and air stable ionic liquid; Electrochemistry communications 7 (2005) 1111-1116

The occurrence of defect modes in the transmission spectrum and phononic band structure of a one-dimensional phononic ASLS has been investigated by El Kadmiri et al.
El Kadmiri et al. have investigated the propagation of acoustic/elastic waves in a 1D ASLS containing segment defect, this defective structure can present defect modes inside gaps.
El Aouni et al. have studied the existence of defects at the level of a loop within the ASLS.
Al-Wahsh, A.
El-Aouni, Y.

Al-Dhifi: J.
El-Khabeery and M.H.
El-Axir: Int.
El-Axir and M.M.
El-Khabeery: J.

The EL spectra from Eu3+ characteristic emission at 616 nm would be observed in all devices.
BCP was used as an electron-transporting and hole-blocking layer, tris(8-hydroxyquino)-aluminum (Alq3) as an electron-transporting layer and a complex cathode LiF/Al were deposited on emitting layer in turn by sequential vacuum thermal evaporation.
EL spectra, current density and luminance curves were exhibited in Fig. 7 (a, b, c).
The EL spectrum peaks of other three devices were consistent at 616 nm.
The EL emission from Alq3 was suppressed distinctly when BCP was used as hole-blocking layer.

The volume power associated with this last source is noted pth_el.
The term pth_el can be calculated using the load data and the relation pth_el=-αT0 σ& , where α is the thermal expansion coefficient and σ& the time derivative of the axial true stress.
Finally, integration over time gives the associated energies: Wheat sources, Wdissipated, Wth_el.
The second presents the energy balance during the tensile test of an Al polycristal.
A quasi static tensile test has been realized on an Al 99.5% polycrystal sheet at Vc=50 mm/min.

The Effect of Process Parameters on the Mechanical Properties of A356 Al-Alloy/ZrO2 Nano-composite Ahmed Y.
El-Mahallawi1, c and Moataz A.
Amer, Moataz El-Saeed, Influence of Al2O3 Nano-dispersions on Mechanical and Wear Resistance Properties of Semisolid Cast A356 Al Alloy, Mechanical and Materials Engineering of Modern Structure and Component Design, Journal of Advanced Structured Materials, Springer International Publishing, 2015, Vol. 70, pp. 13-24
El-Mahallawi, R.
El-Mahallawi, A.