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Cannon et.al: The journal of physical chemistry.
Yu et.al: Journal of Physics.
El Seoud, Adham R.
Sato et.al: The Journal of Physical Chemistry.
Bonotto et.al: Electrophoresis, Vol.32 (2011), p. 3295-3304.

EL-Centro earthquake acceleration time history is used in calculation, and some adjustment is made according to practical condition of the dam.
(in Chinese) [2] Wu Yuan-liang, Wu Yan-qing,et al.
(in Chinese) [4] Wang Guo-hua，Duan Xi-xiang,et al.
(in Chinese) [5] Wang Wen-xing,et al.
(in Chinese) [6] Rico, M.; Benito, G.; Salgueiro, A.R. et al.

El-Raghy: J.
Janowski et al.: Surf.
Lua et al.: Appl.
Ebntouhami et al.: J.
Ni et al.: J.

Introduction The Keerqin sandy lands, located in northeast of China (42°41¢-45°15¢N, 118°35¢-123°30¢E, 180-650 m above sea level), has undergone severe desertification over the past decades due primarily to over-grazing and over-cultivating(Wang et al, 2010).
However, the survival rate of the seedlings was low at the new plantation field because of the lower soil water content and severe transpiration caused by higher temperature and severe wind in spring (Zou et al. 2009).
The fresh samples were washed with demineralized water to remove dust (Chen et al. 2004), then, oven-dried to constant weight at 80°C, and finely milled and screened with a 0.25 mm sieve.
They were digested using the Kjeldahl method with hydrogen peroxide and sulphuric acid (320°C), and a selenium mixture catalyst (Tausz et al. 2004) for determining concentrations of K and P.
Total nitrogen (N) concentrations were determined by a Technicon autoanalyser using ELEMENTAR (Vario EL III, Germany).

Salah Abdallah et al [3] investigated the effect of various absorbing materials on the performance of a solar still.
G.N Tiwari et al [6] designed a double condensing chamber solar still and attained an increase of 35% to 77% in the yield output.
O.O Badran and H.A Al – Tahaineh [8] increased the productivity of the solar still by 36% by coupling the still with a solar flat plate collector.
AL-Tahaineh.
[9] A.E Kabeel , S.A El-Agouz, A.M Hamed, Cost analysis of different solar still configurations.

It is odorless, tasteless, colorless and a cancer-causing radioactive gas (Field, 1999; Saidi et.al, 2013; Saidi et.al, 2016).
Measurement and limitation of indoor 222Rn concentration of buildings are quite important because most of our time spent in the buildings (El-zaher & Fahmi, 2008).
Concentration of 222Rn exposure patterns in large buildings such as schools, commercial buildings and multiunit residential structure may differ from detached houses due to different building structure, volume, occupancy as well as heating, ventilation and air conditioning (HVAC) conditions (Espinosa et.al, 2011; WHO, 2009). 222Rn enters human body primarily via inhalation and ingestion.
Previous study revealed that the 222Rn concentrations were higher in a lower volume than higher volume of rooms (Sathish et al., 2011).
Correlations between 222Rn concentration and environmental factors (pressure, humidity and temperature have been investigated by Dueñas et al. (1996) and Tchorz-Trzeciakiewicz & Solecki (2011).

Mustafa Al Bakri1,g,, H.
Mostafa, A., Abouel-Kasem, A., Bayoumi, M.R. and El-Sebaie, M.G.: Materials & Design, 2009. 30(5): p. 1561-1568
Mostafa, A., Abouel-Kasem, A., Bayoumi, M.R. and El-Sebaie, M.G.: Materials and Design, 2009. 30: p. 1785-1791

Several standardized tests exist (e.g., ASTM standards G34, G85, and G110), but no one test is effective for all high-strength Al alloys.
In contrast, G85 results for AA2XXX series aluminum lithium (Al-Li) alloys have been shown to correlate well with outdoor exposures [2].
Despite their different performance in EXCO, some studies show that the electrochemical characteristics for AA7075 and Al-Li alloys are similar [3].
Rioja, E.L.
Liu, The evolution of Al-Li base products for aerosapce and space applications, Metall.

Several works have been carried out to increase matrix strength by aging the Al matrix but this is not sufficient to prevent wearing of Al matrix.
In order to harden matrix, Ceschini et al [10] have applied ageing treatment to the matrix, but this is restricted by age hardening capacity.
The friction between matrix alloy and sliding disk forces plastic flow of Al matrix by shear stress causing delamination of the surface layer.
When the wear scar of Al matrix and Al composite are compared, it can be seen that wear grooves of the matrix are larger and deeper than the matrix.
El-Baradie, M.S.J.

The Effect of Boron Oxide on Phosphate Ion Released From Borosilicate Glass in Seawater Nurul Fariha YUSOF 1,a*, Ku Halim KU BULAT 1, Nur Azam BADARULZAMAN 2, Mohd Al Amin MUHAMAD NOR 1,b 1 School of Fundamental Science, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia. 2 Engineering Materials Alliance (ENIGMA), Faculty of Mechanical Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Johor, Malaysia a* nurulfariha119@gmail.com, b al_amin@umt.edu.my, c azam@uthm.edu.my Keywords: Boron oxide, Borosilicate glass, Phosphate ion Abstract.
According to the Saiki et al (2001), when such a vitreous material is immersed in seawater, the OH- ions in water combine with the positive ions on the surface of the vitreous material and form NaOH which break the bonds between silicon and boron [4].
According to the Carta et al., (2008) in (P2O5-B2O3-Na2O) phosphate glass are soluble in water, the addition of B2O3 can be adapted on the solubility of the phosphate network [6].
According to the Bengisu et al. (2006) increasing the B2O3 content will increases the dissolution rate of borosilicate glasses [8] and restrictions the practical use of B2O3 in glass compositions [9].
El Batal, M.