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College of Materials and metallurgy, Guizhou University, Guiyang 550003, Guiyang, Guizhou 2.
College of Chemistry and Materials Science，Guiyang University, 550003, Guiyang, Guizhou arose8239@163.com, b370013137@qq.com, ccaishaohan15061013@126.com, d410526416@qq.com Corresponding author: OU Meigui, Ph.D., Vice-Professor, Tel: 18984584582, E-mail: rose8239@163.com Keywords: Core-shell structure; Gd2O3:Tb3+/SiOx; NaOH; Bu4NOH Abstract: Core-shell nanoparticles Gd2O3:Tb3+/SiOx were obtained by encapsulating Gd2O3:Tb3+ in a polysiloxane shell.
Recently, core-shell nanoparticles are gradually attracting more and more attention, due to their abilities to increase the functionality, stability,and dispersibilityof the core, reduction in consumption of precious materials, and so on[] Rajib Ghosh Chaudhuri and Santanu Paria, Chem.Rev. 112(2012)2373–2433. .
In this paper, Tb3+-doped Gd2O3 nanoparticles were prepared by a polyol method previously metioned.[]Meigui Ou, Brice Mutelet, Rana Bazzi et al.Journal of Colloid And Interface Science .333(2009)684-689.
Experimental 2.1 Materials Di-ethylene glycol(DEG), GdCl3·6H2O, TbCl3·6H2O, NaOH，Bu4NOH,3-aminopropyl -triethoxysilane (APTES) tetraethylorthosilicate (TEOS), trithylamine (TEA). 2.2 Gd203: Tb3+ core synthesis Rare-earth chlorides GdCl3 and TbCl3 (99.9%) were added in 250ml diethylene glycol (99%) to obtain a precursor solution at a total lanthanide ions concentration of 150 mM in the stoichiometric Tb/Gd ratio of 5/95.

Bućkoc, Leszek Chlubnyd and Dariusz Zientaraf AGH University of Science and Technology, Faculty of Materials Science and Ceramics al.
Sci. 42 (3), 2007, 772-778 [20] Talako T., Ilyuschenko A., Letsko A., SHS Powders for Thermal Spray Coatings, KONA Powders and Particle Journal, 27, 2009, 55-72 [21] Łopaciński M., Lis J., Ceramic Functionally Gradient Materials for armour applications, ECerS Proc. of the 10th Int.
Alon-based materials prepared by SHS technique.
Preparation of Ti3 AlC2 and Ti2 AlC powders by SHS method,  Materials Science & Technology 2009, October 25-29, 2009 : Pittsburgh, Pennsylvania.
AGH-University of Science and Technology, Kraków 2006.

Semi-analytic solutions of dynamic response of pavement plate on the elastic foundation Caiqin Cao1, a, Chao Gao2, b and Yi Huang3, c 1, 2, 3School of Science, Xi’ an University of Architecture and Technology, Shanxi, Xi’ an, 710055, P.
For the foundation, values of the corresponding material parameters are 0.4, 1755kg/m3 and 0.343GPa.
Journal of Southeast University, 1989, 19 (6): 55- 60, (In Chinese)
Chinese Journal of Applied Mechanics, 1997, 14 (2): 72-78.
Journal of Chang’ an University. 2007, 27 (2): 71-75, (In Chinese).

Mechanism of material removal in ball end magnetorheological finishing process, Wear, 2013, 302(1-2)1180-1191
Theoretical analysis of forces in magnetorheological fluid based finishing process, International Journal of Mechanical Sciences, 2012, 56(1)50-59
Design and development of the magnetorheological abrasive flow finishing (MRAFF) process, International Journal of Machine Tools and Manufacture, 2004, 44(10) 1019-1029
Experimental investigations into forces during magnetorheological fluid based finishing process, International Journal of Machine Tools and Manufacture, 2011, 51(4) 358-362.

The nonlinear behavior of the material was modeled with smeared cracking in tension and plasticity in compression, allowing to minimize the number of fitting material parameters.
Mattsson, Sustainable dissemination of earthquake resistant construction in the Peruvian Andes, Sustainability: Science, Practice and Policy, 2:1 (2016) 22-33
Fontana, Mechanical behavior of earthen materials: A comparison between earth block masonry, rammed earth and cob.
Construction and Building Materials 61 (2014) 327–339
ACI Journal 83, 22 (1986), 219-231.

Corning: Journal of Social and Evolutionary Systems, Vol. 21 (1998), No.2, p.133
Droogers: Journal of Hydrology, (2013) No.502, p.62-67
Koutsoyiannis: Hydrological Sciences Journal, Vol. 56 (2011) No.4, p.553
Journal of Cleaner Production, (2014) No.4, p. 1
Patterson: Journal of Cleaner Production, Vol. 19 (2011) No.8, p.867

Apart from laminar flow, the flow also was assumed to be incompressible where the density of the flow material does not affected by the applied pressure.
Adam, Numerical Simulation of Microfluidic Devices, Journal of Applied Sciences Research, 2012, 8(4), pp. 2162-2174
Pidugu, Characterization of liquid flows in microfluidic systems, International Journal of Heat and Mass Transfer, 2006, 49, pp. 815-824
Stone, Microfluidics: Basic Issues, Applications, and Challenges, AIChE Journal, 2001, pp. 1250-1254
Fu, Fundamental principles and applications of microfluidic systems, Journal of Frontiers in Bioscience, 2008, 13, pp. 2757-2773

The collection routes should be designed rational and also the costs of human resources and materials need to be carefully assessed according to the amount of livestock wastes through continuous testing [7]. 2.1 Household-type collection mode This collection mode (Fig.1) is mainly for the dispersion rural farmers.
The excess livestock wastes can be used for organic fertilizer plant raw materials and energy companies as the wastes are concentrated.
Journal of Anhui Agricultural Sciences, vol.35, pp. 10784–10786, 2007
Chinese Academy of Agricultural Sciences, 2007
Chinese Journal of Animal Science, vol. 46, no. 6, 2010

Kiritani: Materials Science and Engineering A350 (2003) 95-101
Kiritani: Materials Science and Engineering A350 (2003) 70-75
[6] Seungwon Lee, Zenji Horita, Shoichi Hirosawa, Kenji Matsuda: Materials Science and Engineering A 546 (2012) 82-89
Langdon: Materials Science Forum Vols. 633-634 (2010)
Kiritani: Materials Science and Engineering A350 (2003) 63-69.

Raw materials in the form of alternating loading of mineral raw materials and cupola coke are charged into the unit workspace in layers with the height of 5 m.
Charge materials in the melting zone remain for a significant period of time of 25-40 minutes [16-18].
Interrelation of Flow Heat Capacities The major type of heat transfer from the heated gas to materials in the cupola is thermal convection, complicated with heat conduction phenomena when heating thermally solid charge materials [19-21].
[5] R.E., Aristizabal, P.A., Perez, S., Katz., Perez, M.E., Bauer, Studies of a quenched cupola, International journal of metalcasting.
[9] Loy, David, Taking control of the cupola, Materials World.