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The lateral boundary of the soil model is defined as viscous boundary that is presented by Fig. 4 Hyperbola constitutive model Lysmer et al [6].
EL-Centro earthquake wave is adopted.
Calculation Results and Discussion In the example, EL-Centro earthquake wave is applied and the width of the soil model is 400m.

Simulation and experimental measurement of ultrasonic waves propagation velocity in trabecular bone Abderrazek BENNAMANE1,a , Tarek BOUTKEDJIRT2,b 1Waves and Acoustics Research Team, Faculty of Physics USTHB, PB 32, El Alia, DZ-16111 Algiers, Algeria 2Physics of Ultrasound Research Team, Faculty of Physics, USTHB, BP 32, El Alia, DZ-16111 Algiers, Algeria abenamane@yahoo.fr, btarek_boutkedjirt@hotmail.com Keywords: porous medium, bone tissue, Biot theory, ultrasonic characterization Abstract.
Langton et al. [2] were among the first to propose the characterization of bone using ultrasound waves.

Elementary analyses were carried out on a Vario EL Ⅲ elementary analysis instrument.
Al-Omran, A.A.
El-Khair: Journal of Heterocyclic Chemistry. 41(2004), p. 909 [6] M.W.

Cohn1,a*, A.L. de Souza1,b, N.
YS: Yield Strength; TS: Tensile Strength; YR: Yield Ratio; El: Elongation; HV: Vickers Hardness; CVN: Energy Absorbed during Charpy Test at -20°C; ITT@27J: Impact Transition Temperature at 27 J; DWTT: Ductile Area Fraction at -20°C measured by Drop Weight Test.
Designation YS [MPa] TS [MPa] YR [%] El [%] HV CVN [J] ITT@27J [°C] DWTT [%] #0 474 547 87 28 175 391 -96 85 #1 430 507 85 30 163 407 -78 20 #2 442 523 84 30 170 399 -56 27 #3 392 475 82 32 150 396 -77 41 #0 #1 #2 #3 Fig. 1.

The work by Boyd was further investigated in more detail by Apell et al
El-Sayed, M.A.
El-Sayed, Gold nanoparticles: interesting optical properties and recent applications in cancer diagnostics and therapy, Nanomedicine (2007) 2(5) (2007) 681-693
El-Sayed, T.G.
El-Sayed, The `lightning' gold nanorods: fluorescence enhancement of over a million compared to the gold metal, Chem.

Introduction Due to the large surface to volume ratios, nano/micro-structured materials have been predicted and demonstrated to be excellent functional material candidates for catalysis, magnetic applications, rechargeable batteries, ultrasensitive sensors, et al [1-10].
El-Sharkawy, I.
El-Sharkawy, A.
El-Midany, I.

Maximum grain refinement is achieved by applying early fast-cooling mode in the laminar cooling section [15]. 45 50 55 60 65 0 500 1000 1500 2000 2500 1080 0C 1100 0C 1060 0C Case Study Acc. to Fernandez et al.
Mechanical properties of X52 hot strip Gauge [mm] YS [MPa] UTS [MPa] El (A5) [%] YS ratio [%] Trial 488 544 26.0 0.9 6 510 552 25.8 0.92 Trial 10 446 501 25.2 0.89 API X52 / X60 / X65 ≥ 359 / 414 / 448 ≥ 455 / 517 / 531 ≥ 20 / 18 / 18 - The excellent toughness properties are further underlined by the notch-bar impact results.
El-Bitar, K.
El-Kady and G.

Yu et al has reported that the [Gly]Cl was of the best dissolvability and assistant degradation for chitosan among all the Gly series ionic liquids [13].
El-Sayed, S.
El-Sawy, H.
El-Rehim, A.

Abd El-Wahab, A.A.
Al-Shemy, Characterization of microcrystalline cellulose prepared from lignocellulosic materials.
El-Sakhawy, M.L.
Abd El-Azizc, O.

The preparation of this material in the form of both poly- and single crystals has been reported by Maqsood et al [2].
El-Nahass, H.M.
El-Samanoudy, E.M.
El-Menyaway: J.