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El-Fawkhry2, b, Sherif Ali Abd El Rahman1, c *, Iman S.
El-Fawakhry, Manal Amin and Taha Mattar, Enhancing the properties and performance of structural- low alloy steel by SiC nano inoculation, 8th International Conference on Nano-Technology in Construction (NTC 2016), 12-16 March 2016, Sharm El-Sheikh, Egypt
[7] Urtigo Filho S L, Rodriguez R, EarthmaN J C, Lavernia E J, Synthesis of diamond reinforced Al-Mg nanocrystalline composite powder using ball milling [J].

El-Khateeb, and Hussein M.
El-Khateeb and N.
El-Shafai, M.E.
Al-Odayni, A.
Al-Sharabi, A.

The low-lying excited Electronic States of an Alkali-Earth Compounds Mahmoud Koreka*, Hadeel Razzoukb, Rasha Abou Arkoubc, and Sara El Atwanid Faculty of Science, Beirut Arab University, P.O.Box 11-5020 Riad El Solh, Beirut 1107 2809, Lebanon.
Mestdagh et al., Chemical Physics Letters, 471, (2009), 22

Al-Saidy, A.
Al-Jabri, M.
El-Mihilmy and J.
El-Tawil, and M.
El-Refaie, and S.

El-Fadel, M., A.N.
El-Fadel, M., A.N.
El-Fadel, M., A.N.
El-Fadel, M., A.N.
El-Fadel, M., et al., Comparative assessment of settlement models for municipal solid waste landfill applications.

Introduction A number of analytical and experimental investigations of pultruded GRP WF profile columns have been reported during the past decade by, for example, Yoon et al. [1], Tomblin and Barbero [2], Brown et al. [3], Pecce et al. [4] and others.
The average elastic longitudinal, transverse and in-plane shear moduli and Poisson's ratio values used in the FE analyses were: EL = 23.8 GPa, ET = 8.9 GPa, GLT = 3.4 GPa and νLT = 0.3.
The value of EL was deduced from the load - longitudinal strain data recorded during the column tests, whereas the values of ET, GLT and νLT were derived from tests on coupons cut out of the web and flanges of the profile.
Experimental and Numerical Results The measured dimensions, collapse loads and longitudinal Young's moduli EL of the columns are given in Table 1.
The average value of EL from coupon tests [8] is 22.2 GPa and the manufacturer's [9] minimum value is 17.2 GPa. 0 50 100 150 200 250 300 -2 0 2 4 6 8 10 End shortening s (mm) Load F (kN) CLM200 CLM430 CLM600 CLM800 Fig. 2 Compression load versus end shortening response for each column Fig. 2 shows the test results of compression load versus end shortening for each column.

abdelbaset.el-wazri@mcgill.ca, steve.yue@mcgill.ca, Keywords: mechanical properties; hypereutectoid steels, vanadium, silicon, heat treatment; Abstract.
Similarly, Tarui et al
Mechanical properties of steels austenited at 900°C with transformation temperatures Steel Transformation Temperature °C Strength MPa Elongation % 550 1120 28 580 1073 24 D 620 1000 22 550 1138 38 580 1123 37 590 1050 35 Bae et. al. [16] 610 1038 31 Fig. 6.
Elongation after heat treatment at (a) 1200°C, (b) 1100°C, (c) 1000°C and (d) 900°C. 0 5 10 15 20 25 30 35 40 45 50 A B C D Materials EL % 0 5 10 15 20 25 30 35 40 45 50 A B C D Materials EL % 0 5 10 15 20 25 30 35 40 45 50 A B C D Materials EL % 0 5 10 15 20 25 30 35 40 45 50 A B C D Materials EL % Conclusions 1.
Marder et. al., NY, AIME, (1984), p. 201

Fig. 8 shows three hysteretic curves in the same position of a damper under three analysis cases under effect of EL wave.
In the first 10 seconds of the EL wave, response of structure was small, damping force of viscous damper was obviously larger than viscoelastic damper, consuming more energy; Interlayer velocity of VDS was smaller than VEDS in 10 second to 30 second of EL wave.
Under effect of EL seismic wave, the maximum seismic response of structure appears between 17 second and 30 second, so excellent energy dissipation capacity in low velocity of viscous damper paly an indispensable role on reducing structure seismic response in early phase.
References [1] Kovacs, W.D, Yao, J.T.P, et al: International Conference on Microzonation for Safer Construction Research and Application, Proceedings, 2 Volumes, 1972
Symans, et al: Energy Dissipation Systems for Seismic Applications:Current Practice and Recent Developments, Journal of Structural Engineering , 134(1):3-21,2008

Surface Roughness Prediction Based on Acoustic Emission Signals in High-Precision Diamond Turning of Rapidly Solidified Optical Aluminum Grade (RSA443) Zvikomborero Hweju1,a and Khaled Abou-El-Hossein1,b 1Precision Engineering Laboratory, Department of Mechatronics, Nelson Mandela University, Port Elizabeth, South Africa as219146578@mandela.ac.za, bKhaled.Abou-El-Hossein@mandela.ac.za Keywords: Surface integrity, Single-point diamond turning, Monocrystalline diamond tools, Acoustic emission signals, Response surface methodology, Analysis of variance Abstract.
Abou-El-Hossein, Effects of Machining Parameters on Surface Roughness when Ultra-High Precision Diamond Turning RSA443 Optical Aluminum, Solid State Phenomena, 287 (2019) 30-34
Fanc, et al.

Libo et al.[12] studied experimentally crashworthiness characteristics flax fibre reinforced epoxy tubes for energy absorption application. the results indicated that of flax fibre reinforced epoxy composite tube has the potential to be used as energy absorption Capability.
Oshkovr et al.[13]concentrated on the evaluation of crashworthiness characteristics natural silk epoxy composite square tubes energy –absorber.
[5] El-Sadig Mahdi, H.
El Kadi, Composite Structure, 83 (2008) 399–412
El-Shekeil, S.M.