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At T = 250 °C, the ultimate tensile strength and yield strength of the rheo-cast 7075-T6 Al alloy were higher than those of the wrought 7075-T651 Al alloy.
Introduction Wrought 7075 Al alloy is the highest strength Al alloy.
Although the tensile property of GISS 7075-T6 Al alloy does not reached that of wrought 7075-T651 Al alloy, it is comparable to that of the alloy produced by other semi-solid process.
The samples of the GISS 7075-T6 Al alloy are referred to as “GISS” through the rest of this report while the wrought 7075-T651 Al samples are called as “wrought”.
Fig. 2.UTS, YS and %El of both alloys at various test temperatures.

Fig. 1 Model fixed on shaking table Loading Program According to the prototype site conditions, the dynamic characteristics of the prototype structure, selected three seismic shaking table tops as the input wave, The three-wave situations are Taft wave, El Centro wave and seismic risk analysis based on an artificial wave.
Seismic intensity Countertops input 1 More intensity of 7 degrees 0.087 2 More intensity of 8 degrees 0.175 3 Basic intensity of 7 degrees 0.25 4 Basic intensity of 8 degrees 0.5 5 Seldom occurred intensity of 7 degrees 0.55 6 — 0.65 7 — 0.75 8 — 0.85 9 Seldom occurred intensity of 8 degrees 1.0 10 — 1.2 Destruction Process Analysis Peak acceleration of 0.65g at the input of the El Centro wave after, three rib ribbed walls filled cell block appear subtle diagonal cracks, two-story wall appears subtle vertical cracks and diagonal crack.
Countertops peak input acceleration of 0.75g El Centro Taft wave and after wave ground motions, a large number of cracks at the seams appear on rib ribbed wall brick lattice, while four-ribbed wall cracks appear at the bottom level.
Chang, et al, Seismic safety evaluation analysis of a new building structure with multi-ribbed composite wall structure, Proceedings of international conference on Earthquake Engineering: The First Anniversary of Wenchuan Earthquake, Southwest Jiaotong University Press, Chengdu, (2009) 325-328
Zhang, et al, Rational ratio of lateral stiffness for frame-supported multi-ribbed slab structure in transfer stories, Journal of Xi’an University of Architecture & Technology, 3 (2009) 328-333

For conventional spinning, El-Khabeery et al. [3] studied the effect of machine parameters and tool on surface roughness.
El-Khabeery, M.
El-Sheikh.
[4] L.Wang, H. et al.

Elbing, T.
El-Axir, M.
El-Khabeery: Journal of Materials Processing Technology, vol. 132 (2003), p. 82-89 [16] M.
El-Khabeery, M.
Abd Al-Wahhab: Materials and Manufacturing Processes, vol. 13 (1998) 4, p. 505-515 [18] L.

Influence of Nano Particles in the Flexural Behavior of High-Strength Reinforced Concrete Beams Naglaa Glal-Eldin Fahmy1a,b, Rasha El-Mashery2a, Rabiee Ali Sadeek3c and L.M.
Abd El-Hafaz4a,c aCivil Engineering Department, Nahda University, Egypt bCivil Engineering Department, El-Minia High Institute of Engineering and Technology, Egypt cCivil Engineering Department, El-Minia University, Egypt 1naglaa.fahmy@nub.edu.eg, 2rasha.elmasry@nub.edu.eg, 3rabiee1960@yahoo.com, 4laila.shaddy@nub.edu.eg Corresponding Author: Naglaa Glal-Eldin Fahmy Keywords: High strength concrete, nanosilica, nanotitanium, mechanical properties, cracks, deflection, ductility.
Zaki et al. [17] studied the use of nano composites to develop the micro structure and the impermeability of high strength concrete and found that the use of nanosilica improved the impermeability of high strength concrete.
Zaki et al., "The use of nano-composites to develop the microstructure and impermeability of high performance concrete", The 19th International Conference on Composites Nano Engineering, Shanghai, China, 2011
[21] Ata El-kareim Shoeib and Anwar M.

Applying this method, Ti2AlN powder could be obtained by the SHS reaction between Ti, Al and N2.
Titanium (Strem Chemicals, <45um, 99% purity), aluminum (Strem Chemicals, <45um, 99.8% purity), and titanium aluminum intermetallic compound Ti3Al powders were used as the starting materials. 37 wt.% Ti3Al was used as additive in Ti and Al metal powders, with the mole ratio of Ti:Al=2:1.
El-Raghy, Scr.
El-Raghy, S.
Zhang, et al: J.

El Dasher, Anthony D.
Measurements of the grain boundary plane distribution in TiO2 and Al polycrystals yield similar results [12].
El Dasher, B.L.
El-Dasher, T.
El Dasher, Y.

The upstream face of dam is vertical above El. 295.0m, and below El. 295.0m is sloping with gradient 1:0.2.
The design earthquake condition when the reservoir is in normal water level is analyzed for this dam section, under which the upstream water level is EL.352.00m and the corresponding downstream water level is EL.330.08m.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (Grant No. 51179062) References [1] Tengjiao Zhang, Zhenzhong Shen, Liang Liang, et al.
(In Chinese) [2] Zhenzhong Shen, Yan Wang, Jin Jia, et al.
(In Chinese) [7] Lei Gan, Zhenzhong Shen, Chunhai Ling, et al.

Numerical Simulations of Heat Transfer in Plane Channel Flow Najla El Gharbi1, 3, a, Rafik Absi2, b and Ahmed Benzoui3, c 1Renewable Energy Development Center, BP 62 Bouzareah 16340 Algiers, Algeria 2EBI, Inst.
Kasagi et al. [2] revisited the problems employing a constant time-averaged heat flux boundary condition on the walls, for a mild Reynolds number of 4580.
Most of LRN models were developed based on the High-Reynolds k-e model (Lam and Bremhorst [7], Chien [8], Abe et al., [9], Chang et al., [10]).
Results and Discussion To study the flow near the wall, we tested four turbulent model compared to DNS of Iwamato et al. [14 ] and DNS of Kasagi et al.[2]: k-e standard with EWT, SST k-ω and the two k-e models with LRN models; AKN and CHC.
El Gharbi, R.

[9] Akbar Maleki, Arman Haghighi, Mamdouh El Haj Assad, Ibrahim Mahariq, and Mohammad Alhuyi Nazari.
[10] Pablo Rico Gutiérrez et al.
Techno-economic comparison between photovoltaic systems with solar trackers and fixed structure in "el valle de sula", honduras.
[13] Adelmo Miranda, Hector Villatoro, Franklin Martinez, et al.
Revista de energía de Latinoamérica y el Caribe, 7(1), 2023.