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Manik et al. [11] also reported that the bark of Lannea coromadelica has antioxidant activity.
Wahid et al. [12] reported that the stability of the obtained gold nanoparticles was due to the addition of a PAA stabilizer during the synthesis.
Previous research has also been carried out by Farhan et al. [14] biosynthesis of AuNPs, which has a maximum absorbance at 538 nm and Donga et al. [7] at 550 nm.
The same XRD data has also been reported by Khalil et al. [17] and Ganesan and Prabu [18].
El-Magdoub, Biosynthesis of Au nanoparticles using olive leaf extract: 1st Nano updates, Arabian J.

This type of geopolymer can take one of the following three basic forms: Polysialate (Si:Al=1,[-Si-O-Al-O-]), Polysialatesiloxo (Si:Al = 2, [-Si-O-Al-O-Si-O-]) and Polysialatedisiloxo (Si:Al = 3, [-Si-O-Al-O-Si-O-Si-O-]) [3].
Parameters of the geopolymerization reaction system include the molar ratio of Si/Al, Na2SiO3/ NaOH[12] and concentration of NaOH [13,14].
The dissolution of the Si and Al ions was already in a good state and hence the addition of plaster did not enhance the dissolution of Al ions.
Pelisser, E.L.
Mustafa Al Bakri , M.

The magnetohydrodynamic (MHD) effect on the flow structures and heat transfer characteristics were studied numerically by Li et al. [3].
Hadjadj et al. [16] studied the effect of Prandtl number, Rayleigh number and aspect ratio on natural convection between two concentric vertical cylinders.
In another analysis, Hadjadj and El-Kyal [17] studied the effect of two sinusoidal protuberances on natural convection heat transfer between vertical concentric annulus.
Fattahi et al. [20] simulated natural convection in eccentric annulus using Lattice Boltzmann Model.
Dash et al. [22] studied the three-dimensional swirling flow in a cylindrical annulus cavity with top rotating lid.

CO2, which is a greenhouse gas, contributes about 65% of global warming (Vijayakumar et al., 2013).
The agricultural and industrial wastes that possessed pozzolanic properties and which have been studied and applied as partial replacements for cement are Rice husk ash (Waswa-Sabuni et al., 2002; Coutinho, 2003; Nehdi, 2003; Bui et al., 2005), Corn cob ash (Adesanya, 1996; Adesanya, 2000; Adesanya, 2001; Adesanya and Raheem, 2009;), Waste burnt clay (Syagga et al., 2001; Shihembetsa et al., 2002), Hair fibre (Adedokun et al., 2016), Saw dust ash (Udoeyo and Dashibil, 2002; Raheem et al., 2012) and Corn husk ash (Nazir et al., 2012; Peter and Emmanuel, 2013).
The silica content of CSA (64.26%) is slightly lower than that of corn cob ash with a value of 66.38% (Adesanya and Raheem, 2009) and saw dust ash of 65.75% (Raheem et al., 2012).
This indicates an increase in water affinity of the interlocking stone as the CSA contents increased, which is also in line with previous findings that higher content of the CSA in concrete increased its affinity for water (Udoeyo et al., 2006; Sashidhar and Rao, 2010; Chowdhury et al., 2015).
[21] Nehdi, M., Duquette, J. and El-Damatty, A. (2003).

El-Ghazaly, H.

In this research, a septenary equiatomic Ti-Al-Cr-Nb-Ni-Cu-Co HEA was fabricated from SPS process of powder metallurgy.
Jeje, A.L.
Olubambi, Influence of spark plasma sintering temperature on the densification and micro-hardness behaviour of Ni-Cr-Al alloy, in: IOP Conf.
El-Haik, Design for six sigma : a roadmap for product development, (2009)
Chahoud, Good Laboratory Practices: Myers et al.

Choi et al. (2009) encapsulated eugenol with different carriers to protect the bioactivity against oxidation.
Casein isolation based on temperature and pH condition also referred to Ataci et al.
El Baroty, Antimicrobial activity of some Egyptian spice essential oils.
Manohar et al., Antifungal activities of origanum oil against Candida albicans.
El Asbahani et al., Essential oils: From extraction to encapsulation.

El-Hofy, and M.
Kelly, et al., "Continuous Liquid Interface Production of 3D Objects," Science, vol. 347, pp. 1349-1352, 2015
El-Hofy, Advanced Machining Processes; Nontraditional and Hybrid Machining Processes.
Williams, et al., "The Status, Challenges, and Future of Additive Manufacturing in Engineering," Computer-Aided Design, 2015
Biamino, et al., "Additive Manufacturing of Al Alloys and Aluminium Matrix Composites (AMCs)," in Light Metal Alloys Applications, W.

., Loehman, E.L., Al2O3-Ni composites with high strength end fracture toughness, J.
Yoshikawa, N., Watanabe, Y., Matamoros Velloza, Z.M., Taniguchi, S., and Kikuchi, A., "Mechanical Properties of Al/Al2O3 composites fabricated by reaction between SiO2 and molten Al, Al-Cu", J.

Darwish2,b,  Al-Ahmari A.M3,c, and A.
El-Tamimi4,e 1,2,3Advanced Manufacturing Institute, Industrial Engineering Department, College of Engineering, King Saud University, P.O.
The first successful trial of RUM process as an ultrasonic milling was carried out by Pei et al. [5] in 1994.
Hu, et al. [6] studied the RUM process with different rotational speeds (1000 up to 3000 rpm) and observed no significant effect of varying speeds on the MRR.
The different cutting depth (10-50 mm) and different feed rate (100-500 mm/min) have also been studied by Lauwers et al. [8].