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Acknowledgements This work was financially supported by National Natural Science Foundation of China.
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Materials and methods 2.1 Soils Samples of the topsoil (0-20 cm) were collected from the agricultural field in Changping district in Beijing.
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The density functional theory (DFT) calculations reported herein were performed using the Materials Studio (MS).
Advanced materials 2012, 24(2):229-251
Advanced materials 2012, 24(15):2014-2018
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Chemistry of Materials 2009, 21(3):547-551

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Leonowicz, in: Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics, edited by William D.

The accuracy of conclusion depends on the experts' knowledge, judgment, experiences and materials mastered.
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The fields of applications and design for piezoelectric effect grew rapidly in recent years, and these materials play an important role in countless areas of modern life.
Gomez and Espinosa derived a model to predict the dielectric properties of porous piezoelectric materials and the dielectric coupling generated by a second phase to the pores as well.
The domain Ω and the unit cell Q in 2-dim In each cell, the blank material denotes the material, and the yellow part denotes the material, and the other denotes the cavity.
The dielectric modules of these materials and the homogenization dielectric module are listed as follows: .
and Mao G.Z., Experimental study on electro-magneto-mechanical coupling behavior of smart materials, Journal of Mechanical Strength, Vol.27(2007),p.217-226

The analysis so far means that modest offsetting compromises in the manufacturing process can achieve sufficiently high efficiency by employing the standard tolerances used in high volume manufacturing and cheaper mirror materials. 2.
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[31]Shun, S., and Ahmed, .A., ‘Design of a Dynamic Stall Test Rig’,Applied Mechanics and Materials Vols. 215-216 (2012) pp 785-795, © (2012) Trans Tech Publications, Switzerland [32]Shun, S., and Ahmed, N.A., ‘Rapid Prototyping of Aerodynamics ResearchModels’, Applied Mechanics and Materials Vols. 217-219 (2012) pp 2016-2025, © (2012) Trans Tech Pub, Switzerland [33]Lien, S.J., and Ahmed, N.A., ‘A novel method for Skin friction determination using multi-hole pressure probes’, 12th Australian Int Aerospace Congress/12thAustralian Aeronautical Conference19-22, March 2007, Melbourne, Australia [34]Yen, J., and Ahmed, N., ‘Improving Safety and Performance of Small-Scale Vertical Axis Wind Turbines’, Procedia Engineering, Vol. 49, 2012, pp. 99-106

Materials and Testing The materials for laboratory evaluation were acquired from Margalla hills and Dina quarries.
The test was performed on the materials passing 14mm sieve and retain on the 10mm sieve.
The Soundness test was also conducted on both the materials to check the materials resistance to intense weathering conditions (e.g Freeze/Thaw and attack by various salts etc).
The Dina materials show a bit low resistance to degradation and abrasion as compared to Margalla material but within the specifications for wearing and base materials.
The evaluation shows that Dina materials are suitable for road construction projects.

Characterization of Antiferromagnetism in Double Perovskites Ba2FeMoO6 Prepared by Solid State Method Naphat Albutt1,2,a,*, Vanussanun Aitviriyaphan3,b, Thanapong Sareein1,c, Sudarath Suntaropas4,d, Panakamon Thonglor4,e, Suejit Pechprasarn5,f, Sangwoei Sawekwiharee1,g, Wirote Ritthong3,h and Supree Pinitsoontorn6,i 1Division of Science, Faculty of Science and Technology, Rajamangala University of Technology Phra Nakhon, Bangkok 10800, Thailand 2Advanced Materials Physics Laboratory (Amp.), School of Physics, Institute of Science, Suranaree University of Technology, NakhonRatchasima, 30000, Thailand 3Department of Mechanical Engineering, Rajamangala University of Technology Phra Nakhon, Bangkok 10800, Thailand 4Department of Industrial Physics and Medical Instrumentation, Faculty of Applied Science King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand 5Department of Electronic and Information Engineering, the Hong Kong Polytechnic University, Hong Kong
Introduction The study of materials with magnetic properties such as perovskites is important for improving many magnetic devices (magnetic sensors, magnetic and electronic parts and nano magnetics for biosensors).
Acknowledgments The authors thank the Advanced Materials Physics Laboratory (Amp.), School of Physics, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima and the division of Science, Faculty of Science and Technology, Rajamangala University of Technology Phra Nakhon (RMUTP).
Yamazaki, Cation order and magnetic properties of double perovskite Sr2FeMoO6,Journal of applied physics.93 (2003) 2816-2819
Song, Synthesis of BiFeO3 nanoparticles by a low-heating temperature solid state precursor method, Materials Research Bulletin. 48 (2013) 383-388.

Experimental section Materials.
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