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Al-Waeli, K.
Al-Waeli, H.
Al-Waeli, H.
Al Omari, A.
El-Amin, A.

[12] El-Rehim, S.
S., Al-Sarawy, A.
A., & El-Katori, E.
[20] El-Etre, A.
S., Al-Sarawy, A.

., 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.

Pruett el al. [11] found that flexural fatigue failure occurs when instruments rotation continues in the root canal cavity with large number of tension and compression strain cycles in larger curvature canal.
Plotino el al.[14] compared the efficiency of the continuous motion files and reciprocating files.
Pruett el al. [17] found that cyclic fatigue occurs primarily because of curved cavity and small radius of curvature and instruments gets subjected to tension-compression cycles at point of sharp curvature.
Damir et al. [24] CFD The shape of root canal for canine obtained by CT is valid for CFD study.
Daniele et al. [27] µ-CT Root canal obturation techniques showed similarity in pattern of void formation Diogo et al.[28] FEA (static) The study investigated cyclic fatigue behaviour of two rotary files made from different alloys.

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.

After that, a lot of efforts have been made in this area, such as the research done by Palomo et al.[4,5], Davidovits [6,7] and van Deventer et al. [8-10].
Studies performed by Payá et al. [15] shows that independently from the origin of FCC, this byproduct presents an uniform composition.
“El techo que cubre el mundo: la teja de microconcreto” Ed.
“El techo que cubre el mundo: la teja de microconcreto” Ed.

C/ Chile s/n, E11002, Cadiz (SPAIN) 2 Department of Structural Mechanic, Central American University "José Simeón Cañas", Bulevar Los Próceres, La Libertad (EL SALVADOR) *aalvaro.gomez@uca.es, bfran.puerta@uca.es, cedwing.rosales@uca.es, ddaniel.jurado@uca.es, ejosemanuel.maine@uca.es, fmariano.marcos@uca.es Keywords: Dry Turning, Al-Cu Alloy, Feed rate, Ultimate Tensile Strength.
Experimental Test samples were obtained from UNS A92024 Al-Cu alloy bars of diameter 12.7 mm and length 2000 mm.
These results are in good agreement with previous studies carried out in Aluminium alloys (Al-Cu, Al-Zn) of higher diameter -factor ten- in similar dry cutting conditions [1,4,7].
Marcos, A SEM and EDS insight into the BUL and BUE differences in the turning processes of AA2024 Al–Cu alloy.
El-Axir, A method of modeling residual stress distribution in turning for different materials, Int.

Vias et,al [11] obtained 93 % conversion using 9 : 1 methanol to jatropha oil molar ratio, reaction time 30 minute, NaOH as catalyst of 1 % amount.
Hanh et,al [12] obtained above 90 % conversion using 6 : 1 ethanol to jatropha oil molar ratio with 1 % of NaOH and irradiation time of 30 minute.
Study by Worapun et al, [13] showed that transesterification reaction using methanol to jatropha oil ratio 15 % w/w .
According Freedman et al, [14] has revealed that the rate of reaction is strongly influenced by the increase of temperature.
References [1] El Sherbiny, S.A., Refaat, A.A., El Sheltawy, S.T., Production of biodiesel using the microwave technique, Journal of Advanced Research, I (2010) 309-314

Mejuto, et al.
Vivod, et al.
Ruffin, et al.
El-Tahlawy, M.A.
El-Rafie.