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EL Ganaoui b , J.
In [2], Haji et al. studied heat conduction in composites materials in finite dimensions by using Green's function.
For calculation of the effective thermal conductivity, we obtain by using the linear relation above (Eq. 24) km= 252 W.m-2.K -1, and by using Kanan et al model [11], km= 224 W.m2.K -1.
El-Adawi, M.A.

Sherif El-Eskandarany et al [2] studied the amorphization reaction of Al50Ta50 with the aim of finding the relationship between the amount of powder to be alloyed and the degree of transformation of the starting powders while considering the Fe contamination after milling.
Experimental Procedure Powders of nominal purity of Cu (99.9%), Co (99.9%), Ni (99.7%) and Al (99.5%) were employed in the mechanical alloying experiments using different compositions for the Co-Al, Cu-Al, Ni-Al and Cu-Co systems.
XRD patterns for mechanically alloyed powders: a) Co-48.25 at%Al. b) Co-68.5 at% Al.
In that work the studied compositions were Co-50 at. % Al, Co-71.4 at.% Al, Co-76.5 at.% Al and Co-81.8 at.% Al, which corresponded to the compounds AlCo, Al5Co2, Al13Co4, and Al9Co2, respectively, in the equilibrium phase diagram [5].
Sherif El-Eskandarany, K.

., et al., Applied Surface Science, 2003. 214(1-4): p. 208-213
[6] Moataz Soliman *, M.M.H., Samir El-Atawy, and M.
El-Gamal, Effect of fluorine doping and spraying technique on the properties of tin oxide films.
[13] Rajpure, K.Y., et al., Effect of Sb doping on properties of conductive spray deposited SnO2 thin films.
[14] Dawar AL, J.J., J Mater Sci, 1984. 191.

Hintze et al. [3] investigated the delamination during slotting of CFRP and found that top layer fiber (cutting) angle had great influence on the occurrence and propagation of delamination.
Work by El-Hofy et al. [4] showed that finished surface with different fiber directions had different surface morphology and the best surface was found on plies where the fibers were parallel to the tool feed/cutting direction (0º).
According work by Sheikh-Ahmad J et al [8], delamination of top/bottom laminate layer can be classified into four types (Fig. 4).
[4] El-Hofy M H, Soo S L, Aspinwall D K, et al.

Chen et al. [10] have worked on the effect of equivalent heat input for the WAAM of Al-Si alloy.
For example, point A in the process map corresponds to EL of 420 J/mm and WL of 21 mm3/mm.
This finding is in agreement with the facts earlier established by Srivastava et al. [20] Fig. 4.
This observation is in consistence with the previous finding of Gao et al. [21].
El-Atwani, Y.

Meng et al. [4] used elastic buckling analysis of a simply supported plate and proposed a model to predict maximum collapse load of square tubes and applied plastic analysis after collapse.
Shin et al. [8] analyzed axial and transverse collapse of square hybrid tubes theoretically and compared with experimental results.
El.
El-Hage, P.K.
El-Hage, P.K.

The instabilities have been ascribed to trapping phenomena in the vicinity of buffer layer / S.I substrate interface by Noblanc et al. and Sghaier et al. [3 -5], although other authors attributed these effects to surface states [6, 7].
Indeed, in their work, Cha et al. [7] noticed that the phenomenon depends strongly on the channel surface: the current lag is lower for recessed gate and buried gate geometry than for unrecessed and channel recessed ones.
EC EF ET EV S U R F A C E Emission : positive peak Capture : negative peak CHANN EL Surface traps EC EF ET EV S U R F A C E Emission : positive peak Capture : negative peak CHANN EL Surface traps Conclusion Current-DLTS has been used for 4H-SiC MESFETs characterization and revealed capture phenomenon of electrons present at the channel/passivating layer (SiC/SiO2) interface.
Kordos, E.L. 39(15) (2003), p. 1155.

Lourenco [2] and Attard et al. [3] have modeled masonry walls with a combination of continuum elements and interface line elements to simulate the fracture behavior of brick units and mortar joints.
Chiou et al. [4] have modeled infilled RC frames by discretizing the brick units and concrete members into blocks interconnected with contact springs.
Mosalam [5], saneinejad & Hobbs [6], and El-Dakhakhni et al [7] have investigated the performance of masonry-infilled frame using this method.
References [1] El-Dakhakhni, W.W., Drysdale RG, Khattab M.M.
[7] El-Dakhakhni, W.W., Elgaaly M., and Hamid, A.

Abou-El-Hossein2 and N.
Theron3 1, 3Department of Mechanical and Aeronautical Engineering, University of Pretoria, Pretoria, South Africa, e-mail: okekola@yahoo.com; Nico.Theron@up.ac.za 2Department of Mechatronics, Nelson Mandela Metropolitan University, Port Elizabeth, South Africa, e-mail: Khaled.Abou-El-Hossein@nmmu.ac.za *Corresponding author, e-mail : okekola@yahoo.com Key words: Mould; Die; Manufacturing system; Reconfigurability ABSTRACT Manufacturing of moulds and dies based on the rigid and traditional arrangement of dedicated workstations in a production system can no more stand the test of time.
According to Koren et al. [6] Modularity, integrability, and diagnosibility reduce the reconfiguration time and effort while customization, scalability and convertibility reduce the cost of maintenance, the cost of the system and consequently the cost of production.
Then intracellular machine layout and inter cell layout are performed using the method presented by Ahi et al. [8] and then the process can be planned using the technique presented by Ciurana et al. [9] in which a model for integrating process planning and production and control in machining process was worked out.

Change of surface structure of Zn-Al LDH films treated with organic solutions was also investigated.
The basal spacing of Zn-Al LDH d003 is basically increased after the immersion in solution with organic salts (c) and (d), indicating that Zn-Al LDHs with various organic anions were formed on the film.
From the basal spacing, Zn-Al LDHs with benzoate and terephthalate were apparently formed.
Zn-Al LDH intercalated with carbonate anions or organic anions must be formed by dissolution and re-precipitation process
[5] E.L.