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The dose effect in Al-6.5at. % Cu alloy was investigated by means of DBPAT.
The Al-Cu system is a well known age-hardening system and is also very important for practical applications.
Al-Cu alloys are currently used for applications where good specific strength and heat resistant capability up to 150 oC are applied.
Typical applications of Al-Cu alloys are structural components of aircrafts, cars, and machines.
The published values of the positron diffusion coefficient of both Al and Cu are 4 x10-4 cm 2/sec and 1.6x10-4 cm 2/sec [19] respectively.

Zhang Aiwu et al. [6] proposed a new method of fast global registration of outdoor large scenes using reverse projection.
Stamos I. et al. [9] presented a systematic approach to the problem of photorealistic 3-D model acquisition from the combination of range and image sensing.
Based on these experiences above, El-Hakim et al. [11] used image-based modeling for basic shape and structural elements, and laser scanning for fine details and sculpted surfaces.
Lempitsky V. et al. proposed an approach in [15], naturally starts by back projecting original views onto the obtained surface.
Shunyi Zheng et al. [18] investigated the main methods of whole process of reconstruction culture relics and proposed the entire system from hardware to software.

Tamada et al.: J.
Carpi et al.
Carpi et al.
El-hami et al.: Sensor.
El.

Carrino et al.
Bate et al. proposed a method to control the pressure during forming introducing the volume rate control to reduce the cavitation phenomenon [44].
In 2009 Luckey et al. published their work on a similar technique, called by the authors "two-stage SPF".
El-Morsy, N.
El-Morsy, K.

Similar trends have been shown by Oosterkamp et al. [4] in AA6082 and AA7108 and by El-Magd et al. [6] for AA7075.
Mukai et al. [7] performed tensile tests on high purity Al-Mg alloys with magnesium concentrations varying from 1.8%wt to 8.4%wt.
The maximum flow stress increased for all the Al-Mg alloys at strain rates above 1x10 1 s -1, with the exception of Al-8%Mg.
These results are consistent with those of Mukai et al. [7] in their study of pure Al-Mg alloys.
El-Magd, M.

The value of the crystallite size varied from about 7.09 nm for samples Al.08, Al.09 and Al.10.
Sample Al.05 Al.06 Al.07 Al.08 Al.09 Al.10 Al.11 Al.12 Crystallite size [nm] * * * 8.6 7.7 6.8 41.4 45.2 Crystallinity [%] * * * 31 28 28 88 89 Microdeformation average [%] * * * 0.0076 0.0085 0.0136 0.0024 0.0022 Figure 3 shows the curves corresponding to the size distribution of the agglomerates of aluminas synthesized by Pechini method.
The sequence obtained was 15.77, 13.92, 14.02, 13.07, 12.39, and 12.72, 12.33 and 12.97 mm for samples Al.05, Al.06, Al 07, Al.08, Al.09, Al10, Al.11, and Al.12, respectively.
Al.06 Al.05 Al.07 Al.08 Al.09 Al.10 Al.11 Al.12 Fig. 4.
Gonçalves, E.L.

[3] Teng H，Zhang ZG．Wang L, el a1．
[6] Piccini P, et al.
M.et al. 287-304
R.et al.
Sayer M, Smith TJ, et al.

Jakasa, et al), Neural networks for profiling stress history of clays from PCPT data (Pradeep U.
[3] M.C.Natraj et al., (2006), “A Fuzzy-Neuro Model for Normal Concrete mix design”.
Basha., Roshan Hashim., et al (2002).
EL-Rawl and Mohammad M.
AL-Samadi (1995).

Laranjeira, et al.
Khoury, et al.
Lima Pacheco, et al.
Ali, et al.
Sevil et al.

Al Hazza1,b, Suprianto, M.Y1.
Hashmi, M.A El Baradie, & M.