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Al-Tayeb, B.H.
Al-Tayeb, B.H.
Al-Tayeb, B.H.
El-Dieb, M.A.
Abd.El-Wahab and M.E.

Influence of Cd and In on the Formation Kinetics of the δ' Metastable Phase in Al-Li-In(Cd) Alloys A.Raho et M.Kadi-Hanifi Laboratoire 'Solutions solides', Faculté de Physique, USTHB, BP 32 El-Alia,Babezzoua, Alger, Algérie mkadihanifi@yahoo.fr Keywords: precipitation, δ' metastable phase, Al-Li solid solution Abstract :The influence of the cadmium and the indium on the kinetics of the δ' metastable phase precipitation has been studied in Al-8.5at.
%Li and Al-8.5%at.
%Li (A1 sample), Al-8.5at.
RESULTS AND DISCUSSION The HV(t) hardness isotherms of the Al-Li, Al-Li-Cd and Al-Li-In solid solutions determined at the ageing temperatures of 150, 180 and 200°C (Figures 1, 2, 3) show two stages in the HV(t) evolution.
The delay time concerning Al-Li-In and Al-Li-Cd is, on the one hand due to the strong E binding energy between In and Cd and the vacancies EIn-vacancy= 0,25 Ev, and ECd-vacancy= 0,18 eV [5] and, on the other hand, due to the clusters formation as "In-vacancy-Li" and "Cd-vacancyLi"in Al-Li-In and Al-Li-Cd.The atomic weight of these clusters is higher that of Al-Li where the "Al-Li" clusters form, and moderates the clusters movement.

Arrangement of sensors EL-Centro earthquake, Taft earthquake and Shanghai manual earthquake were used to simulate the conditions in the test.
EL-Centro earthquake at 0.6g, 0.7g, 0.8g, 0.9g, 1.0g, 1.2g, 1.3g, 1.4g were later conducted.
After inputting EL-Centro earthquake wave at increasing levels, several column feet were damaged.
(a) EL-Centro (b) Taft (c) SHW Fig.5.
Maximum displacement relative to base under EL-Centro wave Fig.4.

El-Shazly1, a, and H.A.
Al-Turaif2, b 1,2Chemical and Materials Engineering Department, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia aelshazly_a@yahoo.com, bhalturaif@hotmail.com Keywords: Polyaniline, Corrosion resistance, Rotating cylinders, Smart coatings.
Elshazly and Al-Turaif found that coating steel with polypyrrole can improve its corrosion resistance.
El-Shazly and H.A.
Al-Turaif, Int.

El Barkany, A.
El Barkany, A.
El Barkany, A.
El Barkany, A.
El Barkany, A.

El Centro earthquake motion, Taft earthquake motion and artificial earthquake motion are as inputted earthquake motion in shaking table tests, which time history and frequency spectrum, are listed in figure 2.
Analysis of testing results 4.1 El Centro motion input The results of Testing I (under El Centro motion, PGA 0.222g, the gap is 0.01m) and Testing II (under El Centro motion, PGA 0.221g) were listed in Table 8, 9, and 10.
Housner et al, Structural Control: Past, Present, and Future, Journal of Engineering Mechanics, Vol.123, No.11, 1997 [2] Robert C K, Jack H, Steve S.
Journal of Engineering Mechanics , ASCE ,1991 ,117 (11) :2590～2608 [6] Whittaker A S ,Krumme R , Sweeney S C , et al .
[25] Feng M Q, Kim J M, Shinozuka M, et, al.

El-Sebaii, M.
El-agouz, and V.
El-Sebaii, a. a.
El-zahaby, A.
El-agouz, and O.

Hsu et al. have studied the propagation of Lamb waves in two-dimensional PC plates, based on Mindlin’s plate theory and the plane wave expansion method[3].
Vasseur et al. have introduced a supercell plane wave expansion (SC-PWE) method for the calculation of elastic band[4].
Gao et al have studied the propagation of lower-order Lamb waves in 1D quasi-periodic composite thin plate according to a Fibonacci sequence[9].
Nougaoui, E.H.El Boudouti, D.
[10] Y.El Hassouani, H.Aynaou, E.H.El Boudouti, B.Djafari-Rouhani, A.Akjouj, and V.R.Velasco, Phys.

Huang et al. discussed the reordering function of these prepositions, and defined them as Logic-0 (L0) concepts [3][4].
We give 2 simple English sentences to explain the 2 types, EG and EL.
Sentence 5 A secret told(EL) by Bob is spreading(EG).
L0 word in level 1 is in combination with EG, while L0 word in level 2 is in combination with EL.
In this NP, YU is identified as L0 in LEVEL[2], and fit is EL in combination with L0.

Co/Al ratio has a significant effect on the color of CoAl2O4 ceramic pigments.
Usually, the Co/Al ratio of CoAl2O4 with spinel structure is l:2.
El Hadri, H.
El Idrissi Raghni, Sol gel synthesis of forsterite, M-doped forsterite (M = Ni, Co) solid solutions and their use as ceramic pigments, J.
El Ouatib, L.