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Beauchamp et al. [7] investigated the vibration and surface finish under dry turning of mild carbon steel.
Jang et al. [8] studied the relative machining vibrations between tool and workpiece and developed a real-time monitoring algorithm.
The experimental Al 7075 workpiece was provided supplier in the cylindrical form with a diameter of 50 mm and a length of 100 mm.
Maropoulos, Artificial Neural Networks for Surface Roughness Prediction when Face Milling Al 7075-T7351, J.
El-Baradie.

This configuration was informed by findings from Shahverdi et al. [32] and Khalil et al. [30], which indicated that the concrete and embedded rebars achieved a perfect bond.
This verification involved comparing FEM results with experimental data from Shahverdi et al. [32].
Al-Enezi, A.
El Ouni, and M.
El Khouri, R.

Analytical Modeling of Flutter Aerodynamic Derivatives for Open-Truss Stiffened Suspension Bridge Mohamad El-Katta, Raafat Shaker b and Younis Kassemc 1Department of Civil Engineering, Faculty of Engineering, Alexandria University, Egypt amohamadelkatt@co.uk, braafati@yahoo.com, cYounismyk255@yahoo.com Keywords: Analytical Model; Suspension Bridge; Aerodynamic Derivatives; Suspension Bridge Flutter Abstract.
Adel Al-Assaf [8] used the flutter derivatives are input as experimental data points and not as a mathematical function.
[8] Adel Al-Assaf," Flutter Analysis of Open-Truss Stiffened Suspension Bridges Using Synthesized Aerodynamic Derivatives", Doctoral of Philosophy, WASHINGTON STATE UNIVERSITY, 2006

Alloy Designation Concentration of components [wt.%] Si Fe Cu Mn Mg Zr Zn Ti Al Al-6,3%Cu-0,5%Mn-0,17%Fe-0,15%Ti 0.07 0.17 6.3 0.5 0.02 <0.01 <0.01 0.15 bal.
Alloy Designation Annealing Mode [°С] Textrusion [°С] Tempering conditions [°С] Aging Conditions [°С] 1 Al-6.5%Cu-0.7%Mn-0.11%Fe-0.15%Ti 530, 12 hours 480 535, 50 minutes 210, 8 hours 2 Al-6.3%Cu-0.5%Mn-0.17%Fe-0.15%Ti 3 Al-6.5%Cu-0.7%Mn-0.11%Fe-0.15%Ti 420, 2 hours 4 Al-6.3%Cu-0.5%Mn-0.17%Fe-0.15%Ti 5 Al-6.5%Cu-0.7%Mn-0.11%Fe-0.15%Ti 530, 12 hours 330 6 Al-6.3%Cu-0.5%Mn-0.17%Fe-0.15%Ti 7 Al-6.5%Cu-0.7%Mn-0.11%Fe-0.15%Ti 420, 2 hours 8 Al-6.3%Cu-0.5%Mn-0.17%Fe-0.15%Ti As a material for the study, samples of extruded rods Ø40 mm were used, manufactured at various molding temperatures and ingot annealing conditions.
The samples were subjected to standard tensile testing (UTS, YS, El) at room and elevated temperatures.
Element Map for Al, Cu, Mn, Fe using EDS on SEM.
Mechanical properties Al-Cu-Mn-Fe-Ti alloy aged at 200°С 8 hours.

[7] Omar Dagdag, Ahmed El Harfi, Mustapha El Gouri, Zaki Safi, Ramzi T.
Dohare, El H.
[14] Lei Guo, Youness El Bakri, Rongrong Yu, Jianhong Tan, El Mokhtar Essassi, Newly synthesized triazolopyrimidine derivative as an inhibitor for mild steel corrosion in HCl medium: an experimental and in silico study, J MATER RES TECHNOL. 2020;9(3):6568–6578
El-Naggar, Corrosion inhibition of mild steel in acidic medium by some sulfadrugs compounds, Corros.
Al-Fahemi, M.M.

Fig. 2 (a) and (b) showed the absorption bands at ~1100 cm-1 and ~730 cm-1 are due to the vibrations of asymmetric and symmetric stretching of T-O-T (T= Al or P) respectively.
The absorption bands of T-O-T bending (T= Al or P) was observed between 470 and 500 cm-1.
From Fig. 3 (c) and (d), 27Al MAS-NMR spectrum of both TEA-TAPO-5 and TEAOH-TAPO-5 catalysts reveal the strong signal at 39.0 ppm and 38.0 ppm respectively which confirmed that Al is present in tetrahedral environment [5].
There are additional low intensity peak or broad-line features were appeared at -13.0 ppm for both catalysts that attributed to octahedral Al species which may be due to the extra framework material.
Nakamura, E.L.

El=kEtot=Ew+Ep+Ec+Er (2) Among them, El is the energy of the sample under input, Etot is the total energy input, k is the energy distribution ratio of the sample below, Ew is the energy consumed by wear, Ep is the energy consumed by plastic deformation, Ec is the energy dissipated in conduction, convection and radiation, Er is equal to the product of heat capacity, volume and temperature rise of the sample [10,11,12,13].
Similar to the results of this experiment, the texture with higher area ratio in the direction of friction movement means that the contact width becomes narrow, and the heat distribution coefficient allocated to the textured sample decreases, that is, the energy El allocated to the lower sample decreases, and the temperature rise decreases.
From the above analysis, when the texture area ratio is high, the heat EB allocated to the lower sample decreases, that is, the El in Formula (2) decreases.
[16] Wang X, Kato K, Adachi K, et al.

E.L.
Tawil et al. studied the reduction degree and phases evolution up to 1473K, suggesting that the rate of reduction process was best described by a mixed control mechanism involving boundary reaction and diffusion[6].
E.L.
Vyazovkin et al proposed the widely used artificial isokinetic relationship (IKP) which is inherent to the values of lnAi and Ei[32]: (7) where the subscript i refers to one of the possible models.

Mostafa et al. [16] studied the effect of CB loading on the thermal aging properties of styrene-butadiene rubber (SBR) and nitrile butadiene rubber (NBR).
Choudhury et al. [18] investigated the effect of organoclay on the thermal aging performance of hydrogenated nitrile rubber.
El-Nashar, The use of montmorillonite as a reinforcing and compatibilizing filler for NBR/SBR rubber blend, Polym.
El-Sebaie, The influence of CB loading on thermal aging resistance of SBR and NBR rubber compounds under different aging temperature, Mater.

Haouaoui et al. [5] investigated the strength differential (SD) effect and Bauschinger effect in pure copper after ECAP.
El-Danaf, M.S.
El-Rayes, Enhancement of mechanical properties and grain size refinement of commercial purity aluminum 1050 processed by ECAP, Materials Science and Engineering A 458 (2007) 226–234
Hjelen, Microstructure and mechanical properties of Al–xMg alloys processed by room temperature ECAP, Materials Science and Engineering A 545 (2012) 139–147