Search results

El-Sharkawy, G.
El-Subruiti, H.
Al-Ghouti, R.
Al-Absi, Sci.
El-Etriby: Desal.

On the contrary, in the single γ'-phase area, the Ni and Co content was increased, which was accompanied by a decrease of Nb, Cr, Ta and Al content.
As a result, the dendrite arms are enriched by W, Re, Mo, and Cr while the areas between arms are enriched by Al, Ti, Nb and Ta.
The alloy contains (in at. %): Al, 12.1; Cr, 5.3; Co, 9.38; Nb, 0.85; Ta, 0.89; Mo, 0.69; W, 2.4; Re, 0.88 and Ni balance [14].
This strain value is pointed as EL - elastic limit point (see Fig. 1, b).
In the same time, the concentration of Al, Mo, W and Cr was increased due to the diffusion in the opposite direction.

Badawib Faculty of Science, Physics Department, El-Minia University PO 61519 El-Minia, Egypt a allaaldeenahmad@yahoo.com, bemadbadawi@yahoo.com Keywords: HV Values, Mean Lifetime Values, Natural Aging Abstract The aim of this work was to produce a high strength 6xxx series Aluminum alloy by adjusting the processing conditions, namely solutionizing and natural aging.
The mechanical characterization of heat treatable 6xxx (Al-Mg-Si-Cu based) 6066, 6063 wrought aluminum alloys was studied.
Results Aluminum alloys of the 6xxx (Al- Mg-Si) series are employed worldwide in the manufacturing of extruded sections.
During natural or artificial aging, Al-Mg-Si alloys first produce clusters of a few nm sizes.
Al-Marahleh, Am.

., Al-Thabaiti, S.
Al-Youbi and A.
El-Sherbiny: Carbohydr.
El-Toni, S.

Indention method was used to calculate the fracture toughness according to the formula of Lankford et al. [18].
The impression size and the radial crack length were carefully measured and the fracture toughness was calculated using the equation suggested by Lankford et al. [18].
Barsoum and T.El-Raghy: Metall.
El-Raghy, M.W.

Rui et al. (1998) uses first and last frames where video is time sampled regardless of shot boundaries as a improvement of Tonomura et al. (1993)’s approach.
Zhuang et al. (1998) proposes the method based on unsupervised clustering, in which the frame nearest to the clustering center is selected as the key-frame for every cluster after content-based clustering.
Yeung et al. (1995) introduces tolerance-band into key-frame extraction.
As is referred to Wolf et al. (1996), video motion is described as the sum of optical flow of all pixels, thus the approach based on motion analysis is of high time complexity.
[3] Eldib, M.Y, Zaid, B, Zawbaa, H.M, El-Zahar, M, El-Saban, M: 16th IEEE International Conference on Image Processing (2009), p. 4345

., Al-Saleh, S.H., and Al-Jawfi, M.S. (2012).
A., Al-Saleh, S.H and Al-Jawfi, M.S. (2011a).
[5] Yousef, A.A., Al-Saleh, S., and Al-Jawfi, M. (2011b).
[7] Alotaibi, M.B., and Nasr-El-Din, H.A. (2009).
[17] Alotaibi, M.B. and Nasr-El-Din, H.A. (2009).

The material properties of the Aluminum AA2024-T6 are as follows: EAl=65800 MPa, σs,Al=350 MPa and σr,Al=440 MPa, where EAl is the elastic modulus, σs,Al is the yield strength and σr,Al is the tensile strength.
The material properties of the composite laminate are as follows (see Table 1): Table 1: Mechanical characteristics of GFRP laminates GFRP EL [GPa] ET [GPa] GLT [GPa] νLT σr,c [MPa] [0°]8 35.1 7.3 2.6 0.33 550 [0°/90°]4s [0°/±45°/90°]s 20.3 16.1 21.3 16.3 3.9 6.5 0.34 0.32 334 188 where El and Et are the longitudinal and transversal elastic modulus, Glt is the shear modulus, νlt is the Poisson’s ratio and σr,c is the tensile strength.
Ruisi, On the self-piercing riveting of Al blanks and carbon fiber composite panels, International Journal of Material Forming, Vol 3, pp. 11035-1038 (2010)
Zuccarello, Ottimizzazione di giunti ibridi (SPR/incollati) GFRP-AL, Coordinamento nazionale della Meccanica italiana (2012).

Bernatskyi et al., Effect of the structure on the mechanical properties and cracking resistance of welded joints of low-alloyed high-strength steels, Procedia Structural Integrity. 16 (2019) 89-96
Markashova et al., Influence of the modes of heat treatment on the durability of springs made of 65G steel, Materials Science. 53(5) (2018) 684-690
Shelyagin et al., Cold cracking resistance of butt joints in high-strength steels with different welding techniques, Strength of Materials. 51(6) (2019) 843-851
Lebedev et al., Calculation-experimental method for determining crack resistance of materials under biaxial loading, Engineering Fracture Mechanics. 64(2) (1999) 203-215
Gaivoronskii et al., Estimation of the strength and crack resistance of the metal of railway wheels after long-term operation, Fiz.

The large scale Restricted Floating Sensor (RFS) network is an important mod-el in offshore data collection [1].
Then Where Let Then we have The similarity measure based on this distance is: This is the similarity proposed by Hung et al..
Then Let , , Then we have The similarity measure based on this distance is: This is the similarity proposed by Liang et al.