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Online since: July 2004
Authors: Mirko Schoenitz, Xiaoying Zhu, Edward L. Dreizin
Mechanical Alloys in The Al-rich Part of the Al-Ti Binary System Mirko Schoenitz, Xiaoying Zhu, Edward L.
Less information is available about Al-Al3Ti composites with compositions close to pure Al.
At 600 °C, the peaks of α-Al are sharper.
in Rocket Propulsion: Present and Future (L.DeLuca, Editor) (2003, in press) [6] Trunov, M.A., Schoenitz, M., and Dreizin, E.L., "Ignition of metastable metal based high energy density fuels" submitted for the Ninth Intern.
Vol. 3 (1969) 145 [15] Schoenitz, M., and Dreizin, E.L., J.
Online since: July 2011
Authors: Da Feng Gao, Wei Li, Peng Nan Cao, Xin Jian Ding
With full transient analysis, considering time history analysis of two models under the three earthquake excitations of the El-Centro wave, Taft wave and the Lan-Zhou artificial wave, the model displacement and acceleration time history curves were got.
(2)Under the excitation of El-Centro wave, Taft wave and Lan-Zhou artificial wave, the model 1 and model 2 are analyzed respectively by use of full transient method, the displacement and the acceleration time-history curve are got, shows that the two models’ seismic excitation responses are basic consistent, and the relative error is smaller.
[2] Fang Dong ping, Yu Mao hong, Miyamoto,et al.
[6] GAO Da feng, ZHAO Hong tie, XUE Jian yang, et al.
[7] GAO Da feng, ZHAO Hong tie, XUE Jian yang, et al.
Online since: March 2013
Authors: Yue Chen
The comparison includes the results of: (1) structural characteristics and (2) time history analysis (Lu, Chen et al., 2012).
Computing and Test Program The model structure was also analyzed by using the El Centro, Pasadena and SHW2 wave.
Except the ground motion input of one-dimensional SHW2, others were two-dimensional and the principal input of peak acceleration was set to be 0.035g×2.5=0.09g corresponding to frequently occurring earthquake magnified by 2.5 (Lu, Chen et al., 2012).
Fig.7 demonstrates that the comparison of Direction X acceleration THA of the structural roof between the computing and the test of the scaled model under El Centro excitation of frequent 7.
[3] Lu XL, Chen Y, Lu WS et al , Shaking Table Model Test on a Super Tall-building with High Level Transfer Story[C].
Online since: March 2009
Authors: Gergana Nikolova, Jordanka Ivanova
Lemaitre et al
The crack singularities at bi-material interfaces were analysed by Cook and Erdogan [2], Rizk and Erdogan [3], Hutchinson and Suo [4], Song et al. [5].
Limit value of combined loading cε for the elastic - slip interface model For , f cr el L τ τ= = the limit value of cε is equal to 0 0.016 c A T ε ε α= − ∆ = .
The behaviour of the length of debonding zone el (non-dimensional) from loading (nondimensional) is illustrated at the given bellow figure: (a) (b) Fig.2 Dependence of length of debonding zone el from (a) mechanical and (b) combined loading Figure 2 shows the influence of the tension load 0ε and combined loading c ε on the length of debonding el .
For plates with elastic-plastic-cohesion behaviour of the interface the value is 79.4=el (see Eq. (6) and [7, 8]).
Online since: January 2022
Authors: Alexandra Bourdot, Chady El Hachem, Maroua Maaroufi, Kamilia Abahri
These materials are well known for their hygrothermal and acoustic insulation performances, their resistance to fire and heat and most importantly their environmental and energy performance (Väisänen et al., 2017, Akadiri et al., 2012).
However, it is a hygroscopic material that tends to swell or shrink with humidity (Žlahtič et al., 2018).
A non-hysteresis model is also used in the numerical computations in order to evaluate the influence of sorption hysteresis phenomenon on the moisture transfers. 2 MATERIALS AND METHODS The material of interest in this paper is a spruce wood presented in a previous study (El hachem et al., 2020).
This model was validated by comparison of numerical and experimental results in a previous work (Maaroufi et al., 2021).
Construction and Building Materials 160. https://doi.org/10.1016/j.conbuildmat.2017.11.096 [7] El Hachem, C., Abahri, K., Leclerc, S., Bennacer, R., 2020.
Online since: August 2022
Authors: Sameh Hamed Ismail, Ahmed Roshdy Elsakhry, Mohamed Kamal Khalaf, Mostafa Abdel-Hamied, Gehad Genidy Mohamed
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.
Online since: September 2015
Authors: M.R. Mohape, S. Deole, A.S. Tambavekar, V.R. Baviskar, S.R. Sable, M.M. Chitale, S.G. Pandav, V.P. Deshmukh, 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: March 2025
Authors: Adnen Melliti, Rihab Sellami, Afef Ben Mansour, Mohamed Souhail Kehili
A theoretical study of the effect of applying a lateral electric field on type I and type II GaAs/AlGaAs quantum rings with different Al concentrations in the barrier is presented.
Rossi et al [13] showed that the circular polarization degree of the direct emission can be increased by increasing the power of the optical pump in a Ge/Si0.15Ge0.85 quantum well subjected to an electric field.
Bejan et al. [14] studied the interband transition in triple quantum ring in electric fields.
El Moussaouy, M.
Restrepo, A.L.
Online since: August 2004
Authors: Régine Molins, Yves Bienvenu, H. El Kadiri
El Kadiri, R.
In the latest case, the strong tendency of the foil to homogenize its remaining effective Al content would upset the difference in the Al chemical potential gradient between the two substrates that is usually affected by the Al time-dependent concentration
However, these results appear to be inconsistent with those of Ben Abderrazik et al.[10] who showed higher kinetics at 900°C for 1200°C pre-annealed FeCrAl alloys than for those pre-annealed at 1000°C.
El kadiri: Doctoral Thesis, ENSMP (2004) [4] V.
El Kadiri, R.
Online since: October 2012
Authors: Can Yang Hu, Qing Jun Chen, Qing Yang Xu
Li Jin-hua et al[2] deduced a deterministic modulating function and the simulations of the non-stationary wind velocity for three spatial points were carried out using harmony superposition method.
Liang et al[4] deduced function to simulatie non-stationary stochastic process having one dimension single-variable.
Wang et al[5] developed mathematical models in time domain for road disturbances including random road disturbances and disctrted event road ones.
Huang et al[9] developed a kind of theory and a calculating approach in 1998.
[9] Huang,N.E., Shen,Z., Long,S.R., et al:Proc.
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