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Online since: May 2011
Authors: Zhi Bin Su, Sheng Nan Sun
Faggiano et al [2] performed dynamic time history analysis under the hydrodynamic loads and seismic spectral analysis in presence of the hydrodynamic loads by ABAQUS.
It can be seen from Figure 2 that, response of submerged floating tunnel under horizontal El-centro wave excitation increases as external diameter of tube increases.
From Figure 3 we can see response of submerged floating tunnel under horizontal El-centro wave excitation increases as immersion depth of tube increases.
It can be seen from Figure 4, response of submerged floating tunnel under horizontal El-centro wave excitation decreases as water depth increases.
It can be seen from Figure 5, response of submerged floating tunnel under horizontal El-centro wave excitation increases as tube concrete thickness increases.
Online since: March 2014
Authors: Khaled A. Abou-El-Hossein
Abou-El-Hossein Department of Mechatronics, Nelson Mandela Metropolitan University, Port Elizabeth 6031, South Africa khaled.abou-el-hossein@nmmu.ac.za Keywords: Machining, minimum quantity lubrication, surface finish, tool wear.
Many researchers, such as Ezugwu et al. [3], Rahman et al. [4], Su et al. [5], and Avial and Abrao [6] have reported in their papers this finding and proved that flood coolant could be the main reason of premature failure of cutting inserts, especially those made of ceramics and coated carbides which have low resistance to thermal shocks.
Sales et al. [7] conducted a study whereby the abilities of different grades of coolant where investigated.
Kishawi et al. [10] found that tool flank wear progress of uncoated carbide inserts was noticeably low when using MQL in machining of some aluminium alloys at high cutting speeds.
Dhar et al. [12] have performed machining experiments using dry, flooded coolant and MQL cutting conditions on AISI-4340 steel.
Online since: May 2011
Authors: Chang Hai Zhai, Shuang Li, Gang Wu
The Performance Comparison of TMD Considering or Neglecting Tower-line Coupling In fig.6, the effect of considering tower-line coupling in TMD design is presented with widely used El-centro and Taft ground motion.
(a) El-centro ground motion (b) Taft ground motion (c)Wenchuan ground motion Fig.6 The comparison of TMD performance under ground motion Obviously, considering tower-line coupling reduce the entire seismic response.
For El-centro ground motion, the effect of considering coupling is more evident.
(in Chinese) [3] Ozono S et al: Eng.
[4] Ozono S et al: Eng.
Online since: April 2021
Authors: Mohammed A. Khattab, Heba A. El-Deeb, Azza El-Maghraby
El-Deeb2,b, Azza El-Maghraby2,c* 1Materials Science Department, Institute of Graduate Studies and Research, Alexandria University, Egypt.
It has been reported that diffused broad peak at 2θ = 22.141 degrees shows the formation of amorphous silica with minute amount of crystal silica Han et.al. [31] However, The XRD peaks at 2θ =33.20, 35.66, 40.90, 49.52, 54.12, 57.64 and 64.62 degrees which are marked with a star are corresponding to iron oxide nanoparticles. [32] Fig. 2: XRD patterns of silica supported Iron oxide (a) 5 Wt% Fe, (b) 10 Wt% Fe, (c) 2.5 Wt% Fe.
El Abbas, Thermal effect on buckling of multiwalled carbon nanotubes using different gradient elasticity theories.
El-Maghraby, H.
El-Deeb, M.
Online since: May 2015
Authors: S.M.A. Al-Qawabah, Adnan I.O. Zaid, Jehad A.S. AlKasasbeh
The effect of addition of 0.2 wt. % Al-5Ti-1B as grain refiner to ZA22 on its grain size was studied by El-Baradie who conducted tensile tests at 260° C and strain rate of 1.3 X 10-5 S-1 on quenched after solution treatment at 360° C for 12 h and annealed at 260° C for 4 h.
The grain refinement of Al of 99.99% purity through ECAP die was reported in [10, 11].
%Mo, Al-12.97wt.
Al-Dous: Effect of Zr addition on the toughness of commercially pure Al grain refined by Ti or Ti + B, (3rd international conference on Frontier of Advanced Engineering Materials, (FAEM-2006), Lahore, 2006)
El Baradie: Journal of Materials Processing Technology, Vol. 84(1998), p. 73-78
Online since: September 2015
Authors: M.R. Mohape, S. Deole, A.S. Tambavekar, V.R. Baviskar, S.R. Sable, M.M. Chitale, V.P. Deshmukh, S.G. Pandav, V.M. Nimbalkar
Development of Novel Al-alloy (Al-5Mg) /10Wt.
Typical composition of Al-Alloy (Al-5Mg)-10Wt.
Table 1: Composition of Al-Alloy (Al-5Mg) -10wt.
The microstructure analysis of commercial Al-Alloy (Al-5Mg) and Al-Alloy (Al-5Mg)-10wt. % TiB2 composite as shown in Fig.1 (a-b).
Material Diameter (mm) Y S 0.2% proof (MPa) UTS (MPa) % El High temp @ 2500C UTS (MPa) E GPa Al-5Mg-10Wt.
Online since: July 2016
Authors: Ashraf A. Mubarak, Yehia M.S. El Shazly, Mohamed H. El Nemr, Mohamed H. Zaki
El Shazly 1, a, Mohamed H.
El Nemr 2,b, Ashraf A.
Kumar, R., et al., Study of Mechanical Properties of Wood Dust Reinforced Epoxy Composite.
Shinoj, S., et al., Oil palm fiber (OPF) and its composites: A review.
Kakou, C.A., et al., Influence of coupling agent content on the properties of high density polyethylene composites reinforced with oil palm fibers.
Online since: April 2015
Authors: Rostislav Drochytka, Ester Venhodová, Radek Janovský
Specimens manufactured ​​with the addition of Al(OH)3 (5, 6) showed relatively the same mineralogical composition.
El-Hemaly, E.I.
Al-Wakeel, S.A.
El-Korashy, Activity of silica fume and dealuminated kaolin at different temperatures, Cement and Concrete Res. 31 (2001) 905-911
Abo-El-Enein, Hydrothermal synthesis and characterization of aluminium and sulfate substituted 1.1 nm tobermorites, J.
Online since: March 2020
Authors: M.T. Abou El-Khair, Essam Ahmed, Atef Daoud, Fatma Firouz, Ahmed Lotfy
Microstructure Aspects of 7075 Al-SiO2 Composite Foams Produced by Direct Melt Foaming Method A.
Abou El-Khair, F.
The grain size of α-Al was reduced by the addition of SiO2, indicating that the refining effect of the SiO2 is due to heterogeneous nucleation of the α-Al grain by SiO2 particles or restriction of the α-Al grain growth by the SiO2 particles, or both.
In the present work, 7075 Al alloy contains about 2 wt.% Mg.
The grain size of α-Al is reduced by the addition of SiO2, indicating that the refining effect of the SiO2 is due to heterogeneous nucleation of the α-Al grain by SiO2 particles or restriction of the α-Al grain growth by the SiO2 particles or both. 4.
Online since: August 2022
Authors: Gehad Genidy Mohamed, Sameh Hamed Ismail, Ahmed Roshdy Elsakhry, Mohamed Kamal Khalaf, Mostafa Abdel-Hamied
This data supported the findings of Abd El Hady et al. [19], who found that after the consolidation process, sample density increased. 3.2.1.2.
Abd El Hady, S.
Algohary, "Nanoparticles and nanocomposites for preservation of historic marble minbars with application on the minber of Soliman Pasha Al-Khadim Mosque in Salah El-Din Citadel in Cairo, Egypt, Open J.
Abd El‐Tawab, A.F.
Abd El-Tawab.
Showing 721 to 730 of 9913 items