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Abdel-Rahman Physics Department, Faculty of Science, South Valley University, Aswan-81528, Egypt Chemistry Department, Faculty of Science, Minia University, El-Minia- 61519, Egypt Physics Department, Faculty of Science, Minia University, El-Minia- 61519, Egypt Keywords: Anatase, Nanocrystallinity, Phase Transition, Positron Annihilation Technique, Rutile, TiO2 Abstract Positron annihilation techniques (PAT) have recently been successfully employed for the characterization of phase transitions in metals and compounds.
Al-Salim, S.A.
Karwasz et al.: Acta Physica Polonica A, 107 (2005) [17] S.
Al.: Acta Physica Polonica A, 113 (2008) 1945-1949 [20] A.
Tanigawa et al, in “Proceedings of 5th ICPA,” edited by R.

Omar et al [9] evaluated microwave and dielectric properties of graphene filled NR composites prepared by two roll mill mixing at microwave frequency region (1-12 GHz) using graphene obtained from Hayzen Engineering Co.
Omar Al-Hartomy, A.
Al-Ghamdi, N.
El-Tantawy Dielectric and microwave properties of natural rubber based nanocomposites containing graphene.

Liposomes were prepared by the thin film hydration method following Subongkot et al [5] and the size of liposomes was reduced by the sonication method.
El Zaafarany, G.A.S.
El Maghraby, A.

Table 1 Chemical composition of the eletro-deposited pure iron ( mass%) C Si Mn P S Al N 0.0006 0.0001 0.0001 0.0001 0.0002 0.0002 0.0009 0.0018 O Table 2 Tensile properties of the electro-deposited pure iron TS, MPa YS,MPa T - El,% U - El,% r 288 215 68.5 13.0 7.1 Experimental Results Fig. 1 shows an optical micrograph of the electro-deposited pure iron from transverse section.

[6] El-Sayed M.
El-Alfy, Azzat A.
Al-Sadi, High-Capacity Image Steganography Based on Overlapped Pixel Differences and Modulus Function, Networked Digital Technologies Communications in Computer and Information Science, Vol. 294,(2012) pp 243-252

El-Mallawany, A.
El- Mallawany, M.D.
Annapurna, Time resolved fluorescence and energy transfer analysis of Nd3+-Yb3+-Er3+ triply-doped Ba-Al-metaphosphate glasses for an eye safe emission (1.54 μm), Journal of Fluorescence 20 (2010) 425-434

Referencias [1] Spanish Law, Ministry of Science and Innovation, (in Spanish), Orden CIN/351/2009, de 9 de febrero, por la que se establecen los requisitos para la verificación de los títulos universitarios oficiales que habiliten para el ejercicio de la profesión de Ingeniero Técnico Industrial, Boletín Oficial del Estado Nº 44, Madrid, (2009)
García Polanco (in Spanish), en Experiencias de Innovación e Investigación Educativa en el Nuevo Contexto Universitario, Paricio Royo et al.

El-Jazairi.
Azizinannini, A. et al., pub.
El-Jazairi.

Tecnologías para el taladrado de materiales aeronáuticos avanzados, MetalMecanica, Information on: http://www.interempresas.net/MetalMecanica/Articulos/101182-Tecnologias-para-el-taladrado-de-materiales-aeronauticos-avanzados.html.
Faraz, et al.

Bahía s/n, Esquina Ignacio Comonfort, El Bosque, 77019, Chetumal, Quintana Roo. 4Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA. 5Departamento de Física de Materiales, Facultad de C.
El Hichou, M.
Cathodoluminescence properties of undoped and Al-doped ZnO thin films deposited on glass substrate by spray pyrolysis.