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Effect of SiC Particles Volume Fraction on the Mutual Diffusion of Al and Cu During Fabrication of Al-4.5wt%Cu/SiC via Mechanical Alloying E.
Unfortunately, the traditional technique of liquid metallurgy for the synthesizing of SiC/Al (or Al alloy) composites, which is accompanied by high temperature and liquid phases, cannot be applied because of the following reasons [6,7]: (a) The extreme difference in the thermal expansion coefficients between SiC and Al (Al alloys) (b) The poor wettability between molten Al (Al alloys) and SiC (c) Chemical reactions which are taken place at the SiC-Al interface Eq. (1) and Eq. (2) show the chemical reactions which take place at the temperature 923-1272K [6-10].
Sample Al-4.5wt%Cu [15] Al-4.5wt%Cu/4vol.
%SiC Al-4.5wt%Cu/8vol.
[7] M.Sherif El-Eskandarany: Mechanical Alloying for Fabrication of Advanced Engineering Materials, Noyes Publications/William Andrew Publising, Norwich, NY (2001)

In this study, two MR dampers were used to control a five-story structure subjected to the El Centro earthquake at three different magnitudes: full-scale, half-scale, and quarter-scale.
A six-story test structure equipped with four MR dampers was subjected to sinusoidal excitation near the first two modes of the structure in Yi et al. (1998) and to scaled versions (55, 105, and 125%) of the El Centro earthquake in Yi et al. (2001.)
This structure was subjected to the following four earthquakes: El-Centro, Hachinohe, Kobe, and Northridge.
[4] Mei G, et al.
[6] Ulicny J, Balogh M, Potter N, et al.

Therefore, the above criterion is used in conjunction with the Taylor’s point method to numerically estimate the fatigue life of Ti-6Al-4V and Al-4Cu specimens under cylindrical contacts.
is the El Haddad intrinsic crack length [13]: (5) being the threshold range of the stress intensity factor for long cracks.
Ti-6Al-4V and Al-4Cu alloys: testing parameters and fatigue properties.
Ti-6Al-4V and Al-4Cu alloys: experimental vs numerical fatigue life values.
El Haddad, N.F.

The thickness of HTL, EML, ETL, LiF and Al were 30, 30, 30, 0.5 and 200 nm.
Passivation film Al:LiF Alq3 AND:DSA NPB ITO Substrate CCM Figure 1.
J-V-L characteristics (a) and Normalize EL spectra (b) of devices.
Especially, a white EL emission spectrum of White OLED with three peaks at 460,504,596nm was clearly observed.
The blue peak originated from the EL emission, whereas the green and red peaks were from the PL emission of CCM.

Both of the two methods used Al4C3, instead of Al as aluminum source.
According to our previous work [8], the melting temperature of B2O3 (460°C) is lower than that of Al (660°C), which can form a liquid circumstance before Al is melted.
Mixture I were blended with a Ti:Al:C molar ratio of 3:1.2:1; in contrast, Mixture II were blended with the same Ti:Al:C molar ratio but adding 5wt% of B2O3 as a low-temperature aid.
El-Raghy: Scrip.
El-Raghy and M.W.

Zhu Dongsheng et al. studied on the design parameters of the seismic isolation bridges, and the effects of initial period, ductility ratio as well as the ratio of the stiffness after yielding to the stiffness before yielding on the seismic isolation of bridges were investigated [1].
Li Jianzhong et al. researched on the optimum design of seismically isolated continuous bridges and presented the optimum design method for continuous bridges [2].
Kyu-Sik Park et al. solved the contradiction between the reduction of the maximum forces and the increment of the beam displacement by introducing the weight coefficients [3].
The site which the bridge locates is I-site, and 3 earthquake waves of San Fernando, El Centro and Long Beach are selected as the excitations for the optimization of the LRB design parameters.
Design parameters of LRB and the seismic responses Items Minor earthquake Design earthquake Severe earthquake San Fernando El Centro Long Beach San Fernando El Centro Long Beach San Fernando El Centro Long Beach Qy(105N) 1.0098 1.4468 1.3484 1.1798 2.9530 3.3285 1.050 4.386 3.464 K1(107N/m) 2.069 1.000 4.825 3.883 6.140 8.135 5.877 9.956 9.753 α 0.354 0.123 0.085 0.302 0.116 0.167 0.339 0.126 0.184 rd(cm) 1.94 1.77 1.93 5.47 5.37 4.81 9.99 9.92 9.26 SI (mm) 550.2 623.0 430.1 2024.2 1730.6 1523.5 4499.8 3538.6 3104.4 M(107N∙m) 0.6170 0.4051 0.7133 2.5606 2.0264 2.7638 6.2474 4.6170 5.6000 The iteration histories of the maximum relative displacement between beam and the top of the pier, and the iteration history of maximum moment at bottom of the pier as well as the time-history of the relative displacement between beam and top of the pier for design earthquake intensity of San Fernando earthquake excitation are shown in Fig. 3, Fig. 4 and Fig. 5 respectively.

Fe-Base Metallic Glass Coating Produced by Gas Tunnel Type Plasma Spraying Fast Laboratory Test for Mechanism of Natural Nanoclay-Water Interaction Refat El-Sheikhy* , Mosleh Al-Shamrani** *, ** Professors, Civil Engineering Dept, College of Engineering Bughshan Research Chair, King Saud University, P.
Fig. 5 SEM analyses of nano Si/Al powder and fibers Fig. 6 XRD pattern for Saudi nano Si /Al powder.
Manias, et. al., Chen.
Hbaieb, et. al., polymer 48, 901-909, (2007)
Wang, et. al, Polymer 48 , 7301-7308, (2007).

The layout design of bracing members for a two-bay six-story steel frame under different requirements has been discussed by Mijar et al [1] using a continuum topology optimization approach based on classical Voigt-Reuss mixing rules.
Liang et al [2] proposed a performance-based optimization method formulated on the basis of system performance criteria for the topology design of bracing systems for multistory steel building frameworks under multiple lateral load cases.
To solve this problem, a concept of mean thickness for a design domain has been advanced by Huang et al [3] in the research on the optimal topology design of multistory steel frame bracing systems with stress and multi-displacement constraints under multiple lateral loading conditions.
The maximum inter-story drift of the optimal unbraced steel frame to the modified El Centro ground motion is 19.3mm, which also exceeds the allowable value 14.4mm (h/250, where h is the story height of the frame).
Fig. 5 presents the maximum inter-story drift response history of the optimized braced steel frame to the modified El Centro ground acceleration, and the maximal value is 12.6mm (<14.4mm) occurred at time 2.32s.

Methodology 2.1 Materials: RS was obtained from a farm in New Borg El-Arab, Alexandria, Egypt.
Rathour et al., “Recent Trends, Opportunities and Challenges in Sustainable Management of Rice Straw Waste Biomass for Green Biorefinery,” Energies, vol. 16, no. 3.
El.
Abd El-Moneim, “Layer-by-Layer Inkjet-Printed Manganese Oxide Nanosheets on Graphene for High-Performance Flexible Supercapacitors,” ACS Applied Materials & Interfaces, vol. 16, no. 46, pp. 53632-53643, Nov. 2023
Jiang et al., “Rice straw-derived activated carbon/nickel cobalt sulfide composite for high performance asymmetric supercapacitor,” Diam Relat Mater, vol. 139, Nov. 2023

Hu et al. [2] synthesized a biodiesel using modified shells as a trans esterification catalyst.
Pena Rodriguez et al. [3], Seco Reigosa et al. [4] Paradeloa et al. [5] and El Haddad et al. [6-8] studied the biosorption potential of raw and modified mussel shells for removal of mercury, arsenic, phosphates and various synthetic dyes, respectively.
El Haddad, A.
El Antri, S.
El Haddad, A.