Search results

Both spectra show three bands below 1000 cm-1 attributed to the vibrations that are intrinsic to the (Al-O) tetrahedral sites and (Zn-O) octahedral of the spinel characteristic.
El-Sayed et al. (2002) (14);, when studied the influence of zinc in some properties of Ni-Zn ferrite obtained by the conventional solid oxide absorption bands observed below 1000 cm-1.
The results of this study confirm the results obtained by El-Sayed et al. (2002) [13].
United States Patent Application Publication, US 2003/0180780 Al, (2003)
El-Sayed: Ceram.

Fawcett et al [4] synthesized two oxynitrides, SrWO2N and SrMoO2.5N0.5, by the ammonolysis of SrMO4 (M=W, Mo).
El-Himri et al [6] synthesized new vanadium- chromium and chromium-molybdenum oxynitrides by direct ammonolysis of freeze-dried precursors.
Vetter et al found the Cr2N phase when the Cr content (x) in the (Ti, Cr)N coating was >0.1 [10].
This is consistent with the result reported by Lee et al for (Ti1-xCrx) N coatings prepared by ion-plating method [11].
El-Himri and F.

Wang et al [5] studied the role of the terminal mass on the fretting and fatigue parameters of the hoisting rope in the transition segment during a lifting cycle.
Urchegui et al [7] analyzed the evolution of the wear on the number of cycles and the effect of the diameter of the pulley in the preferential sites of wear.
Petit et al [8] studied the propagation of fatigue cracks in thin wires, and performed fatigue crack growth experiments.
A., et al.
[25] Mouradi, H., El Barkany, A., & El Biyaali, A. (2018).

Effective Elastic Properties of Hierarchical Honeycombs with Corrugated Sandwich Walls Omar El Khatib1,a,*, S.
The model employed deflections derived from sandwich beam theory specifically for a cantilever beam with thick walls and combined that with the mechanics framework by Malek et al. [9].
Detailed derivations of the model are available in El-Khatib et al. [8].
Wang et al., “Honeycomb structure is promising for the repair of human bone defects,” Mater Des, vol. 207, Sep. 2021, doi: 10.1016/j.matdes.2021.109832
El-Khatib, S.

Al-Ghamdi, O.
El Okr, A.
El-Gazzar, F.
El-Tantawy, F.
El Hichou, N.

In the research conducted by Barros and Silva (2003) and followed by Barros et al. (2007).
El-eraky, S.A.
El Awdan, Egypt J.
El-feky, Z.K.A.
El-samii, N.A.

EL_Centro wave and Lanzhou wave are respectively exerted to the structure, both of which fit for the site soil of Type Ⅱ.
Fig.9 Shear of core tube under EL_Centro wave Fig.10 Shear of total base under EL_Centro wave Fig.11 Shear of core tube under Lanzhou Wave Fig.12 Shear of total base under Lanzhou Wave Mechanism Analysis.
[4] P.Fajfar & M.Fischinger: Mathematical Modeling of Reinforced Concrete Structural Walls for Nonlinear Seismic Analysis, Structural Dynamics, 1990:471-478 [5] Kabeyasawa, T.Et al,U.S.

Abd El Meguid, N.A.
Abd El Rehim: submitted to Materials Chem.Phys. (2000)
Muthe, et al: submitted to Corros.
El-egamy, W.A.

Numerical analysis of laminated veneer lumber panels in fire THI Van Diem1,2, KHELIFA Mourad1,*, EL GANAOUI Mohammed2, ROGAUME Yann1 1 University of Lorraine, LERMAB, EA 4370, 27 rue Philippe Séguin, 88026 Epinal Cedex, France 2 University of Lorraine, LERMAB, EA 4370, IUT of Longwy, 54400 Cosnes et Romain, France * mourad.khelifa@univ-lorraine.fr (M.
An early model for wood charring was given by Bamford et al. [7].
Fredlund [9] and R.M Knudson et al. [10] are given in Figs.1.
Khelifa, A.Khennane, M.El Ganaoui, Y.Rogaume.

El Araby et all. [8] treated synthetic solutions via ozone technology, using iron and manganese sulphate, converting ferrous ions (Fe2+) to ferric state (Fe3+) and (Mn2+) to (Mn4+).
(1) After ozonation Before ozonation Fig. 2 Cyclic voltammograms obtained at the determination of the aluminum ions, at 25oC Table 2 Theoretical and experimental data of the aluminum ions determination by cyclic voltammetry in an aqueous solution of Al2(SO4)3·18H2O, at 25 oC Substance Gross sample Ozonated 30 min Ozonated60 min Ozonated90 min Normal potential in standard conditions [V] Measured potential [V] Al2(SO4)3·18H2O blue red green yellow -1,66 -2,31 -1,60 -2 The reactions that could take place are: Al3+ + 3e- Alo (2) Al(OH)3 + 3e- Alo + 3 OH-
El Araby, S.
El Diwani: Desalination Vol.249 (2009), p.1343