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., & Al-Noaimi, M. (2015).
M., Al Jahdaly, B.
A., El-Shenawy, A.
S., El-Ewady, G.
F., & Abd El-Rehim, H.

Yusoff1,d, KWOK Feng Chong1,e* 1 Faculty of Industrial Science and Technology, University Malaysia Pahang (UMP), 26300, Kuantan, Pahang, Malaysia 2 Chemistry Department, Faculty of Science, Al–Azhar University, Assiut branch, Assiut 71524, Egypt 3 Central Metallurgical Research and Development Institute, CMRDI, P.O.
Box 87, Helwan 11421, Egypt 4 Physics Department, Faculty of Science, Assiut University, Assiut 71516, Egypt 5 Deanship of Scientific Research, Al Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11463, Saudi Arabia a gomaasanad@azhar.edu.eg, b oafouad@yahoo.com, c smakhlouf@gmail.com, d mashitah@ump.edu.my, e ckfeng@ump.edu.my Keywords: Co3O4/SiO2, nanocomposites, citrate–gel, optical, pseudocapacitance Abstract.
El–Sayed, Cobalt/silica nanocomposite via thermal calcination–reduction of gel precursors, Mater.
El–Erian, S.A.

This typical pattern of result also have been found by Amjad et. al and other researchers in their studies [10,11].
El-Deen, M.
Al Salhi, and M.
El-mallawany, UV-IR spectra of new tellurite glasses. 172 (2002) 165-172.

Median values of Cl/SO4, Al/Fe and Mn/Fe are 1.22, 49 and 5, respectively (Table 1).
Jarosite has been found beneath the gypsum layer, and more soluble Al and Fe-bearing salts occur also as efflorescences around the ponds (Fig. 2).
Tebes-Cayo, C.J., Aislamiento, identificación y caracterización de microorganismos relacionados con el ciclo biogeoquímico del arsénico en el Salar de Ascotán, II Región, Chile., in Centro de Biotecnología. 2012, Universidad Católica del Norte: Universidad de Antofagasta. p. 200

This paper refers to a project conducted on an example of a manhole skipping hatch by a joint project of the Fraunhofer-Institut Werkstoffmechanik in Freiburg, the Central Metallurgical Research and Development Institute in El-Tabbin and the German University in Cairo, Egypt [2].
The manhole consists of wrought plate material Al 5083 H116 and cast material Al Si7 Mg.
Fig. 4 shows the microstructure of the cast ring and base metal and shows typical dendritic structure consisting of primary Al-solid solutions and eutectic mixture.
(a) (b) (c) (d) Fig 4: Microstructure of the cast ring at different magnifications: porosity with irregular morphology (a) and dendritic cast structure (b), and of the Al 5083 base metal at different magnifications: band structure with two different second phase particles (c), (d).

(In Chinese) [4] LV Qiang, ZHANG Hui, YANG Kai-ming, el al.
(In Chinese) [5] Hu Jun, Xiao Ling-jian, Wang, Yu-han, el a1.
[6] HE Bo, LUO Lei, HU Jun, el a1.
(In Chinese) [8] XIE Jin, TAN Jie-qing, LI Sheng-feng, et al.

The sand comes from three different banks: “El Cuervo” riverbank, “El Coro” riverbank and “Joyitas” volcanic bank; the banks were named with the acronyms R, CH and J respectively.
[10] Muhammad Nasir, Muhammad Arif Aziz, Mukarram Zubair, Noman Ashraf, Tag Nasreldin Hussein, Moath Khalid Allubli, Mohammad Saood Manzar, Walid Al-Kutti , Mamdouh A.
Al-Harthi.
Industria de La Construcción-Cementantes Hidráulicos-Requisitos Para El Aparato Usado En La Determinación de La Fluidez de Morteros

Box 12, 23000 Annaba, Algeria. 3University of Echahid Hamma Lakhdar, PO Box 789, El-Oued, Algeria. 4Laboratory of Analytical Chemistry, Materials, and Environment (LC2AME), Faculty of Sciences, University of Mohammed Premier, P.O Box 717, 60000 Oujda, Morocco.
This latter is generated by a program working under matlab 6.5 environment based on the algorithm developed by Laouar et al [10].
By employing a diamond tool, Tanaka et al. [13] have found that an amelioration by 100 Hv was detected after ball burnishing of the same alloy.
El-Axir, M.
El-Khabeery, Influence of orthogonal burnishing parameters on surface characteristics for various materials.

Mielke, el at[28] researches show PAHs is much related with heavy metal concentration in New Orleans (city of central France).
Presley, et al.
Wang Z, Chen J, Qiao X, et al.
Tang L, Tang XY, Zhu YG, et al.
Chen L, RanY, XingB, et al.

El Abdallaoui et al. [16] carried out on silver water and pure water numerically using Boltzmann lattice method for normal convection for an eccentric triangular cylinder located within a square cylinder.
Al-Asad, M.
Alim, S.
Alim, L.
El Abdallaoui, M.