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[5] YunFeng Yang, HanQiong Hu, Yang Li et al.
Lyon et al.
Cathie Lee, A.L.
[49] Eun-Sik Kim, Geelsu Hwang, Mohamed Gamal El-Din.
[51] Eun-Sik Kim, Yang Liu, Mohamed Gamal El-Din.

El-Raghy: J.

In particular, nc-Si:H thin films exhibit photoluminescence (PL) and electroluminescence (EL) behavior at room temperature [3].
The crystalline volume fraction was estimated from Raman spectra using the procedure proposed by Tsu et.al [6].

El Gamal, N.M.
Al-Musayeib, R.A.
Al-Rehaily, M.
Farag, Assaf M.H, El-Tahir K.
Al-Resayes, C.P.

Sousa et al. [20] observed that significant changes occurred in the gloss and colour of the exposed samples.
Similarly, Heinrick et al [22] noticed that after 9 months of exposure, the samples endured some physical changes involving discoloration, cloudy appearance within the resin matrix.
The reason according to Mourad et al.[28] is related to the possible swelling in the samples during the exposure that leads to increase in the modulus and lower in strain at failure.
[21] Almusallam TH, Al-Salloum YA, Alsayed SH, El-Gamal S, Aqel M.
[28] Mourad AHI, Beckry Mohamed AM, El-Maaddawy T.

Walter, E.L.
El-Sayed, Some recent developments in photoelectrochemical water splitting using nanostructured TiO2: A short review.
El-Sayed, Bacteriorhodopsin/TiO2 nanotube arrays hybrid system for enhanced photoelectrochemical water splitting.
Moore, A.L.
Al-Shahry, W.B.

Song et al. [25] elaborated the key points for the corrosion of Mg alloys includes: a partially protective film covers the surface of Mg; hydrogen evolution is intimately associated with the dissolution of Mg; Mg has a negative free-corrosion potential with a slightly more negative pitting potential and the chance development of areas of localized corrosion leads to the undermining and falling out of particles of Mg.
Yang, E.L.
Xu, E.L.

The same failure for reinforcement ratios greater than the balanced reinforcement was also reported by El-nemr and Adam [9-10].
Wang, et al, Effects of Stirrup and Inclined Bar Corrosion on Shear Behavior of RC Beams, Construction & Building Materials 98 (2015) 537–46
El-nemr, E.

Synchrosqueezing wavelet transform (SWT) proposed by Daubechies et al. [9] is a powerful TFA method which can efficiently improve the readability of TFR of signals with time-varying frequency.
El Badaoui, Cyclostationarity approach for monitoring chatter and tool wear in high speed milling, Mechanical Systems and Signal Processing, 44 (2014) 177-198
El Badaoui, F.

In addition, based on research conducted by Iovane et al., the use of membrane purification technology using polymer membranes has also shown satisfactory results, which can increase the concentration of methane gas by up to 80% and can remove carbon dioxide concentrations by up to 60% [7].
According to Yakout and El-Deen, the pore structure formed comes from the evaporation and dissolution of non-carbon compounds contained in the raw material caused by the pyrolysis process or physical activation [12].
[12] Yakout, S., & El-Deen, G.