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Gokul Krishnan et al. [3] used the Viola Jones algorithm for detecting faces and CNN2 for detecting emotions.
Imane Lasri et al. [6] determine facial emotions using CNN and detect faces using Haar Cascades.
Ameya Badve et al. [8] proposed a system that determines facial emotions using SVM.
Madhuri Athavle et al. [13] determine facial emotions using CNN and detect faces using Haar Cascades.
[6] Imane Lasri, Anouar Riad Solh, Mourad El Belkacemi, "Facial Emotion Recognition of Students using Convolutional Neural Network", 978-1-7281-0003-6/19/$31.00 ©2019 IEEE

El-sayed, Sci.

Ko et al. used sol-gel ZnO ETM based PSC and showed a PCE equal to about 16.5 % at 1 sun illumination [8].
In 2015, Ke et al. reach a higher efficiency of 17.2% with a low-temperature solution-processed nanocrystalline SnO2 in planar PSC [9], and in 2018, Yang et al. achieved an efficiency of 20.79% for a PSC with SnO2 as ETM layer [10].
Anaraki et al. developed a chemical bath post-treatment SnO2 PSC which brought an efficiency of 21% [11].
In addition, the presence of this layer reveals a supplementary advantage as shown by Jiang et al. [38] and Song et al. [39] being the low acidity resistance of SnO2 assumed the best ETM durability of the perovskite solar cell device.
El Bounagui, S.

Boescke et al. demonstrated ferroelectric hysteresis in hafnium oxide for the first time.
Recently, a large number of dopants including Y, Al, Gd and Sr have been used to induce ferroelectricity in HfO2.
In 2011, Boescke et al. [19] demonstrated for the first time that hafnium oxide doped with silicon can possess ferroelectric properties.
Stolichnov, E.L.

Vanaja, M, et al, synthesized silver nanoparticles using Solanum trilobatum as agents [15].
Aritonang, et. al. in 2018.
Naseer, Sumra et al (2018) discussed the high antibacterial activity of the leaf extract of Psidium guajava.
El Sohafy, A.
Naeem, et al, “The phytochemistry and medicinal value of Psidium guajava (guava).”

Recently, macrosegregation in Al-4.5 pctCu in the presence of electromagnetic stirring was studied and reported by Poole et al [7], effect of frequency on segregation and final grain size was also reported.
The grid refinement factor r is greater than 1.3 as recommended by Celik et al [15].
The thermophysical properties of materials used in this work are those given in Reference 1 and 8 for Al-4.5%Cu.
Stefanescu, A Model for Macrosegregation and Its Application to Al-Cu Castings Metall.
Model Formulation, Int.J, Heat Mass Transfer 30 (10) (1987) 2161-2170 [8] Poole, Gregory Michael, Matthew Heyen, Laurentiu Nastac, and Nagy El-Kaddah, Numerical modeling of macrosegregation in binary alloys solidifying in the presence of electromagnetic stirring, Metallurgical and Materials Transactions B 45(5) (2014) 1834-1841

The hydroforming processes are reviewed by many authors such as Raja and Ramesh [1], Kandil [2], Zhang et al. [3-7], Siegert et al. [8], and Hartl [9].
Furthermore, it is worth to noted that the thickness variation results are broadly consistent with the major trends as stated in Liu and Wang [20], Liu et al. [25], and Yang et al. [28, 29].
The data obtained is broadly consistent with the major trends as stated in Groche et al. [40].
These results are in good agreement with Groche et al. [40] in hydroforming paperboard.
El-Sebaie, Finite element modeling and experimental results of brass elliptic cups using a new deep drawing process through conical dies, Journal of Materials Processing Technology, 214 (2014) 828-838

Ramji et al. [19] also a conducted out a numerical analysis to obtain an optimum composite patch shape applied on an inclined center cracked panel, they have used different patch shapes such as circular, rectangle, square, elliptical and octagonal, They showed that extended patch shape octagonal and rectangular perform better for mixed mode problem, Kaddouri et al. [20], Ouinas et al. [21,22] and Albedah el al. [23] analyzed numerically the performance of patches with octagonal, circular and elliptical shapes.
Albedah et al. [27] analyzed the effects of the thermal stresses on the stress intensity factor (SIF) variation in aluminum plate repaired with Boron/epoxy patch.
An optimization of the ratio h/hr is thus recommended .According to the results of Mhamdia et al [33].
Wang, Mechanical Behavior of Single Patch Composite Repaired Al Alloy Plates: Experimental and Numerical Analysis, Materials. 13(2020) 2740 [11] X.
Feaugas, et al.

Al-Taay, Preparation and Characterization of Chemical Bath Deposition synthesis CdS Nanocrystalline Thin Films, Iraqi Journal of Science 58 (2017) 454-461
El-Shazly, E.F.
El-Wahidy, Structural and electrical characterization of nickel sulphide nanoparticles, Optical and Quantum Electronics 56 (2024) 1794
AL-Amin, Md.

[9] Hao Y., et al. 2000.
S., et.al. 2000.
[11] Higa, K., et al. 2005.
[12] Ni J., et al. 1997.
International Journal of Nanomedicine 2013 8 : 4157–4168 [23] Weadock KS, Miller EJ, Keuffel EL, Dunn MG. 1996.