Search results

Yi et al. [33] investigated progressive collapse behavior of RC frame through testing a three-story one-third scale model in Hunan University.
[12] Alashker, Y. and El-Taiwl, S. (2011).
K., El-Tawil, S. and Lew, H.
P., and El-Tawil, S. (2010).
[71] Li, H. and El-Tawil, S. (2012).

Nordell et al.: J.
Zhumaev et al.: Sov.
Bergman et al.: J.
Hallén et al.: Mat.
Son et al.: Appl.

Compared with Al and steel, however, their high-cost limits their wide applications, especially in civil.
Many researches on the semi-solid deformation behaviors of Al, Mg and steel have been carried out by scientists and engineers all over the world and many useful results have been obtained.
Ti14 alloy, being a Ti-Al-Cu-Si system (with Cu content greater than 10wt.%), is α and Ti2Cu type alloy [8~9].
Table 2 Tensile properties at RT of Ti14 alloy bar after heat treatment Forging way UTS/ΜΡa ∆UTS/% YS/ΜΡa ∆YS/% El/% ∆El% RA/% ∆RA% Semi-solid 843 +16 694 +19 13 -38 18 -56 Conventional 727 -- 585 -- 21 -- 41 -- Comparison with the values before and after heat treatment, the strength after heat treatment decreases and the plasticity increases greatly, that is, the elongation increases from 6.8% to 13%, which increases by 48%, and the reduction in area increases from 12% to 18%, which increases by 33%.
Bania: Beta Titanium Alloys in the year 1990s, TMS Publish, 1993, p.3 [4] Y.Q.Zhao, K.Y.Zhu et al: Chinese Patent, Application No.02101189.3 [5]Y.Q.Zhao, K.Y.Zhu et al: Chinese Patent, Application No.02101190.7 [6] Hirowo G.

Effect of Electroslag Refining on Cleanness, Microstructure and Mechanical Properties of a Newly Developed CrNiMoWMnV Ultrahigh-Strength Steel Mohammed Ali1,2,a*, David Porter1,b Jukka Kömi1,c, Mamdouh Eissa2,d, Hoda El Faramawy2,e M.
A small amount of Al metal was added to the slag as a deoxidant at the beginning of the ESR process.
Table 1 shows that the concentration of Al was increased as a result of ESR.
El Faramawy, D.
El-Shahat and T.

El Hajam, H.
El Hajam, N.
El Hajam, M.
El Hajam, N.
El Hajam, H.

Sharaf El-Deen et al.[10] studied glass system TeO2-Re2O3 (RE = La, Ce, Nd, Pr, etc.) and report the good optical properties.
This result is consistent with the results of research conducted by El-Mallawany et al.[1] that refraction index of the glass increased following increase the concentration of Nd2O3 modifier.
El-Mallawany, M.
El-Deen, M.S.
Al Salhi, M.M.

Iseki, et al: J.
El-Raghy, et al.: Acta Mater.
El-Raghy, et al.: Acta Materialia Vol.50(2002), p.1297
El-Raghy, et al.: J.
El-Raghy, S.M.

Nassar et al [3]studied the reinforcement effect of grass fibre – bagasse, in natural rubber by aging experiments.
This hike is significant for the sample with latex stage incorporation of fibre.Similar results were obtained for [11] Wisittanawant et al.
Sci., 61, 885-890 [4] El Sabbagh S.H., El Hariri D.M., Abd.
El Ghaffar M.A.(2000) Proceedings from the 3rd International Symposium on Natural Polymers & Composites.
El-Saied, (2004).Utilization of waste paper in the manufacture of natural rubber composite for radiation shielding, Prog.

Navruz et al. investigated the influence of overlap of absorption coefficient between any two of the three bands (CB, IB and VB) on the η [6].
Qingwen Deng et al. studied the influence of size and interdot spacing of QDs on the detailed balance limit efficiency of InGaN/InN QD-IBSCs through solving the Schrödinger equation [10].
With regard to the CdTe (ΔEG-CdTe=1.54 eV) QD-IBSC, the quantized energy levels in QDs fall down with increasing the d value, the upper sub-gap width (EL=1.54-C×d-2) of IBSC rises while the under sub-gap one (EH=ΔEG-EL=0.46+C×d-2) decreases.
The increase of EL between IB and CB benefits to absorb short wave photons since EL near the low energy edge of the main peak of solar spectrum, hence more sunlight are absorbed to boost the photon-generated current with a result of enhancing the Jsc and η, as exhibited in Fig. 2.
With respect to the Ge (ΔEG-Ge=0.66 eV) QD-IBSC, the quantized energy levels in QD also drop down with increasing the QD size, the value of EL(0.66-C×d-2) increases while that of EH=ΔEG-EL= 1.34+C×d-2 decreases.

Anisotropic Behavior of Different Three-Dimensional Structures Materials under Thermal Stress Effect BOUZID Sihem1,a*, HEBBIR Nacer2,b, HARNANE Yamina 3,c 1Department of mechanical engineering, University of Larbi-Ben-M’hidi, Oum-El-Bouaghi, Algeria 2Department of physics, University of Larbi-Ben-M’hidi, Oum-El-Bouaghi, Algeria 3Department of mechanical engineering, University of Larbi-Ben-M’hidi, Oum-El-Bouaghi, Algeria asihembouzid69@gmail.com, bhabnacer@gmail.com, charnane_y@yahoo.fr Keywords: Temperature, anisotropy, discretization, finite elements, simulation Abstract.
According to Jianping Zhang et al [14], heat transfer model based on EFG has been successfully applied to transient heat transfer problems in anisotropic material.
Afrid, Revue des Energies Renouvelables CISM’08 Oum-El-Bouaghi, (2008) 103 – 111
El-Ganaoui, J.
El-Bartali, P.