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Ratner, et al., Editors. 1996, Academic Press: San Diego, CA
[12] Maloney, J.M., et al.
El Maaoui, The Dissolution Kinetics of Sand as Function of Particle Size.
Ratner, et al., Editors. 1996, Academic Press: San Diego, CA
Ratner, et al., Editors. 1996, Academic Press: San Diego, CA.

Sombekke et al. [8] LCA is one of the instruments for analysing the effect of activities on the environment.
Pillay et al. [11] LCA is a systematic way to evaluate the environmental impact of products or processes by following a cradle-to-grave approach.
Sombekke. et al. [20] This study compared two groundwater treatment schemes for removing hardness and colour.
A., Denison R., Jones B. et al., A technical framework for life cycle assessment.
[12] Mahgoub El-Sayed Mohamed M., van der Steen, N.

Also, Amin et al. determined that the maximum addition of 7% sewage sludge fried at 1150°C.
This corresponds to Lu et al. [19].
This result is similar to Younes, et al. [16].
El-Sherbiny, H.A.
Al Mamun and M.H.

Lepalovskij1 and Rhimou El Kammouni3 1Department of Magnetism and Magnetic Nanomaterials, Ural Federal University, Ekaterinburg, 620002, Russia; 2Department of Electricity and Electronics, University of The Basque Country, UPV-EHU, 48940, Leioa, Spain 3Instituto de Ciencia de Materiales, CSIC, Madrid a e-mail: anniaally@gmail.com Keywords: Magnetoimpedance, magnetic field sensors, magnetic multilayers, magnetic biosensors Abstract.
Correa et al. used very thin FeNi layers of order of 10 nm separating them by Ag spacers [7].
On the other hand Volchkov et al. designed FeNi-based multilayers on the basis of rather thick FeNi layers (of the order of 170 nm) separated by Cu spacers [8].
Fernandez et al used FeNi layers of the order of 100 nm separating them by Ti spacers [9].

Prasad et al. [47] designed ormosil nanoparticles (33±6 nm) in which the ratiometric pH-responsive dye is covalently immobilized.
Peng et al. [27] and Burns et al. [45] developed two-fluorophore-immobilized nanoparticles sensors.
What is interesting is that although both authors used covalent immobilization, Peng et al. [27] reported extensive dye leakage.
Cywinski et al. [18] prepared ratiometric polystyrene-based oxygen nanosensors (20.9 ± 7.1 nm).
Mancin et al. [25] developed a fluorescent nanosensor for the detection of Pb2+ ions.

Measurement of Blood Pressure and Heart Beat Based on Sensors and Microcontrollers Iman Morsi1, a, Yahia Zakria Abd El Gawad2, b 1,2Electronics and Communications Department, Arab Academy for Science and Technology Alexandria, Egypt adrimanmorsi@yahoo.com, b micomicoo@yahoo.com Keywords: Blood pressure ,Heart rate , Sensors , Piezoelectric sensor , Light dependent resistance, Strain gauge sensor ,Infrared sensor.
O’Brien, et al.
Stergiou, et al., European Society of Hypertension International Protocol for the validation of blood pressure monitors: a critical review of its application and rationale for revision, Blood Press, 15, (2010) 39-48

The use of sample G led to the production of a hydraulic binder, while the binder including sample S performed very well when cured in air but was not resistant in water [5].Zhou et al, prepared non-fired bricks from waste phosphogypsum by a novel process called " the Hydration-Recrystallization process" [6].Factories that produce phosphatic fertilizer and chemical industries in Abo-Zaabal,Cairo,Egypt, generate large quantities of phosphogypsum which is currently being disposed of by dumping into ponds or waste lands.
Ajam et al, studied the incorporation of phosphogypsum into the fired clay bricks.
[13] L.Ajam, M.Ouezdou, H.Felfoul, and R.El Mensi , Characterization of the Tunisian Phosphogypsum and its Valorization in Clay Bricks, Construction and Building Materials. 23(2009) 3240-3247

Mechanical properties of high-strength two-phase titanium alloys used in research Alloy Molybdenum equivalent Metal thickness Ultimate tensile strength [MPa] Yield strength, [MPa] EL [%] KCV [J/cm2] VT23 5.7-8.0 8 mm 1030 980 13 35 Т110 4.4-7.9 7 mm 1190 1150 18 31 Т120 5.6-10.5 8 mm 1259 1110 15 13 In the initial state, the alloy consists of equiaxial polyhedral β-grains with a dispersed intragranular (α + β)-structure (Fig. 1, a).
Mechanical properties of Ti-6.5Al-3Mo-2.5V-4Nb-1Cr-1Fe-2.5Zr welded joints obtained by TIG welding Welding mode # State of sample, Ultimate tensile strength [MPa] Yield strength [MPa] EL [%] RA [%] KCV, [J/cm2] 1 After welding 1075 985 15.3 31 4.6 2 After welding 1162 1069 14.7 28 4.9 3 After welding 1006 938 4.0 14.0 14.1 2 Annealing 900°С, 1 hour 1151 1074 9.3 30.1 34.6 3 Annealing 900°С, 1 hour 1047 1021 7.3 24.5 26.7 Thus, the preferred welding conditions for the Ti-6.5Al-3Mo-2.5V-4Nb-1Cr-1Fe-2.5Zr titanium alloy should provide reduced heat input values and high welding speeds.
Mechanical properties of VT23 and T110 welded joints, obtained by TIG welding Alloy State of sample Ultimate tensile strength [MPa] Yield strength [MPa] EL [%] RA [%] KCV, [J/cm2] VT23 After welding 1128 1084 1.3 23 27 VT23 Annealing 750°С, 1 hour 970 945 5.1 11 30 Т110 After welding 1118 1081 6.4 13 11 Т110 Annealing 750°С, 1 hour 1078 990 12 38 29 Conclusions 1.
Li, Design and preparation of low-cost α+β titanium alloy based on assessment of Ti-Al-Fe-Cr system, Mater.
Pereloma, The effect of cooling rates on the microstructure and mechanical properties of thermo-mechanically processed Ti–Al–Mo–V–Cr–Fe alloys, Mater.

Elmahdy1,e 1Department of Chemistry and Advanced Materials, Science and Technology Center of Excellence (STCE), El-Salam City, Cairo, Egypt.
The glass substrate was horizontally in front of the Al sputter cathode.
The Al layer was deposited at 2 KW power and under Argon gas with 200 sccm flow rate.
All annealed Al-coated glass samples were treatment using a two-step wet chemical method. 
The samples L56 (Al thickness 240 nm) was exposed to 6% HF for 5 min.

Fig. 5 The microstructures form various regions of fabricated Al-Al2O3 specimen.
Fig. 6(d) revels that banded structure consisting of alernatively lamellae of Al-Al2O3.
Thus, the reaction may be processed rapidly by the plastic strain at the Al-Al2O3 interface.
The grain size of 6061 Al matrix was refined after FSP.
Al-Al3Ti nanocomposites produced in situ by friction stir processing.