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The indirect optical band gap was found to increase from 3.04 to 3.20 eV as increasing the content of Nd2O3 which agrees with findings of El-Mallawany et. al [7].
Sharaf El-Deen, M.S.
Al Salhi and Meawad M.
El-Mallawany, M.
El-Sayed: J.

In terms of a Cu-Al phase diagram in 1150°C, Al can be melted completely into the liquid Cu and form a Cu-Al alloy.
El-Raghy: Scripta Mater.
El-Raghy and M.W.
Zhou, et al.: Mater.
Barsoum, et al.: J.

The compounds were used as a dopant for OLEDs in the structure of ITO/NPB/BS01-BS04/Bphen/LiF/Al.
After that, bilayer cathode (LiF and Al) were evaporated at 0.5 nm and 100 nm for LiF and Al, respectively.
EL spectra and CIE coordination were obtained using a Minolta CS-2000 spectrophotometer.
Transient EL data were collected by Agilent 8114A 100V/2A pulse generator and Tektronix TDS3054B digital oscilloscope.
The electroluminescence (EL) data of BS01-BS04 are shown in Fig. 3 and summarized in Table 1.

The aim of the present paper is thus to analyze and compare the experimental data obtained by the authors of this study by testing in torsion three different Al alloys (AA6005A, AA6063 and AA7020).
El Mohtadi for helping in processing data.
[5] Verlinden B., Voith K., “Constitutive Equations for Hot Deformation of Al-Mg-Si Alloys”, Risø International Symposium on Materials Science: Numerical Predictions of Deformation Processes and the Behaviour of real Materials.
[6] Donati, L., El Mehtedi, M., 2011, “Characterization of flow stress of different AA6082 alloys by means of hot torsion test”, the 14th International ESAFORM Conference on Material Forming, AIP Conf.
[7] Castellanos, J., Rieiro, I., El Mehtedi, M., Carcì, M., Ruano, O.

Introduction The Quality Index has been used over the past 30 years to rate the metallurgical quality of Al-Si-Mg aluminium casting alloys (such as grades A356 and 357) irrespective of their temper condition [1].
It was shown empirically that the metallurgical quality could be expressed by a numerical index Q (in MPa) given by Q = UTS + 150 log El, where UTS is the ultimate tensile strength in MPa and El the elongation at failure in %.
The yield strength YS was found to be tied to UTS and El by the relationship: YS = UTS – 60 log El - 13.
The use of Quality Index makes easy and reliable the adjustment of the temperature and temper time in the T6 heat treatment process; it allows to accurately answer the question: For a casting of given metallurgical quality, how much strength (YS, UTS) may be traded off for ductility (El) in order to meet the required tensile specifications.
HOUSINGS Location T F W YS, MPa 130 122 152 UTS, MPa 190 177 207 El., % 6.0 5.0 5.1 Q, MPa 307 282 312 Q Predicted 305 315 335 LPDC HOUSINGS Location T F W YS, MPa 202 217 185 UTS, MPa 260 266 257 El., % 6.4 6.4 6.5 Q, MPa 38 387 379 Q Predicted 368 375 390 Fig. 2 - Location and shape of excised tensile samples and test results (tables on the right) Secondary Dendrite Arm Spacing (DAS) and level of microporosity (por).

[19] El-Boubbou, K.; Lemine, O.M.; Ali, R.; Huwaizi, S.M.; Al-Humaid, S.; AlKushi, A.
El Mir, S.A.
Z.; Ihzaz, N.; EL Mir, L., Heating Ability of γ-Fe2O3@ ZnO/Al Nanocomposite for Magnetic Hyperthermia Applications.
El Mir, M.
El Mir, M.

Box 11-8281, Riad El Solh 1107 2260 Beirut, Lebanon b Laboratoire des Multimateriaux et Interfaces, UMR-CNRS 5615, Université Claude Bernard Lyon1, 43 Bd du 11 nov. 1918, 69622 Villeurbanne, France c Chemistry Department, Faculty of Science, Beirut Arab University, P.O.
The thickness of the Al-doped SiC layer was measured to be ~1µm.
Knowing the layer thickness (1 µm), the Al concentration was determined to be 3.9x1020 at/cm3.
The LOD of Al in this case is equal to 6x1018 at/cm3.
El-Ashry, M.

The model displacement and acceleration time history curves were obtained by taking the two models subjected to El-Centro ground motion, Taft ground motion and Lanzhou artificial ground motion excitation.
Gao et al. [1] carried out timber frame model test under cyclic loading.
Ding et al. [12] established the finite element models of archer's tower of the Xi'an city wall Yongning gate (south gate) , and got the dynamic magnification factor of each layer.
Su et al. [6] established a one-storey Chinese timber structure of palace style, the total dynamic magnification factor was got（about 0.44）.
（a）time-acceleration interval curve of model 1 （b）time-acceleration interval curve of model 2 （Taft wave 70Gal） （Taft wave 70Gal） （c）time-acceleration interval curve of model 1 （d）time-acceleration interval curve of model 2 （El-Centro wave 220Gal） （El-Centro wave 220Gal） （e）time-acceleration interval curve of model （f）time-acceleration interval curve of model 2 （Lanzhou artificial wave 400Gal） （Lanzhou artificial wave 400Gal） Fig.5 Time-acceleration interval curve Table 4 Peak acceleration and Peak displacement position Node number Displacement(cm) Acceleration（Gal） Model 1 Model 2 Model 1 Model 2 Model 1 Magnification factor Model 2 Magnification factor Taft（70Gal） Column feet 1053 1017 0.426 ─— 58.03 0.829 ─— ─— Column top 1092 1056 2.475 0.867 39.08 0.656 467.8 6.683 roof 8055 7771 2.544 0.971 34.51 0.909 529.6 1.132 El-Centro（220Gal） Column feet 1053 1017 1.381 ─— 200.6 0.912 ─— ─—

Nikishin et al at Texas Technical University [3], with three times lower dislocation density in the structure being detected as compared to the same structure grown on sapphire substrates.
QW thickness was chosen to reach maximum EL intensity in 340-350 nm range.
Composition of these layers was high enough to obtain transparency for EL emission.
EL spectra of GaN/AlGaN MQW LED on AlN at different currents (right) EL spectra of same LED vs.
AlN substrate transparency spectrum (middle), EL spectra of GaN/AlGaN MQW LED on AlN and sapphire.

Wang et al. [7] synthesized dense polycrystalline Ti3AlC2 by reactively hot-pressing a mixture of Ti, Al, and graphite powders at 1500o C and 25 MPa for 5 min with subsequently annealing at 1200 o C.
The mole ratio of the powder mixture for the samples 1~6 was Ti: Al: C = 3: 1.1: 2, and the mole ratio for the sample 7 was Ti: Al: C: Sn = 3: 1: 2: 0.2.
El-Raghy: J.
El-Raghy: Nature, Vol.407 (2000), pp. 581
El-Raghy: J.