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This process was important to produce a good quality of SnO2 material.
Naqvi, “Effect of Mn doping on the structural and optical properties of SnO2 nanoparticles”, Journal of Alloys and Compounds, vol. 523, pp. 83–87, 2012
Faisal, “Highly sensitive ethanol chemical sensor based on Ni-doped SnO2 nanostructure materials”, Biosens.
Diebold, “The surface and materials science of tin oxide”, Prog.
Rusop, “Recent Trends in Nanotechnology and Materials Science”, 2014

The reclamation of construction waste means to recover the useful materials and resources.
The environmental impact of construction wastes is permanent and accumulated, and the components are increasing diversified and the proportions of non－degradable materials, compounds, and organic materials are increasingly larger, so, the secondary contaminations are also increasing severe.
Modeling materials flow of waste concrete from construction and demolition wastes in Taiwan [J].
Construction and Building Materials. 2007(21):1542-1551
Journal of the Air and Waste Management Association, 1999,49(8):980-985

Results from XRD clearly show that phosphate glass and HA can be successfully synthesized using natural materials.
Nonetheless, such materials have limitations regarding their mechanical, biodegradability, and other properties [9].
Materials and Methods Materials Preparation In order to obtain HA for the experiment, bovine bone was boiled at 150 °C for 3 days.
In the meantime, the phosphate glass was prepared by using NH4H2PO4, NaH2PO4, and CaO as raw materials.
Fischer, “Scaffolds for bone healing: Concepts, materials and evidence,” INJRY. 42, 569-573, (2011) [5] M.

Materials and Methods Data Sources.
Fang: Exploration of Method for Discrimination between Trend Grain yield and Climatic Fluctuant Yield, Journal of Natural Disasters, Vol. 20 (2011) No. 6,p13-18
Zhang: Regression Function Models and Parameter Estimation Methods for the Use of Simulating Investment Diminishing Returns Law, Journal of Tianjin University of Science and Technology, Vol. 24 (2009) No. 2, p.0-73
Li: Chemical Fertilizer and Food Security, Plant Nutrition and Fertilizer Science, Vol. 12 (2006) No. 5, p. 601-609
Zhao: Jilin Corn (Jilin Science and Technology Press, Changchun China 2000), p. 40-45.

After adding graphite and other conductive materials into ordinary asphalt concrete, it’s equipped with excellent conductive performance, which can sense the temperature, pressure and humidity of the environment, displacement, velocity, acceleration, stress and strain of the structure; damage, cracks, changes in optical, electrical and magnetic signals within the material, etc[2-3]. through changes of some characteristics (such as resistance).
The Influence of Electrode on Resistivity of Conductive Asphalt Concrete for Self-monitoring[J].Key Engineering Materials, 2012,509:203-208
Self-monitoring structural materials [J].
Materials Science and Engineering, R22 (1998) 57-78
Journal of Wuhan Univesity of Technology (Mater.Sci.Ed), 2002, 17 (4):63-65.

Preparation and characterization of calcium sulfate spherical particles for dentistry Tingting YAN1, Xiaopei WU1, Chongyan LENG1, Qinghua CHEN1,* 1 Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China * Corresponding author, E-mail: chenqinghua_yn1@163.com, yantting@gmail.com Keywords: calcium sulfate; spherical particles; alveolar bone; biomaterial Abstract: In this article, calcium sulfate spherical particles were prepared to be used in alveolar bone defect repairing.
Ltd., China); HY-0230 universal materials testing machine( Shanghai Hengyi Co.
Ltd., China); FA2004 electronic Tin Ping (Shanghai Haikang Electronic Instrument Factory, China) and so on. 1.2 Materials Preparation Sodium silicate waterglass was stirred on CJJ78-1 magnetic stirrer at 40ºC.
Beijing: Chemical Industry Press, 1992 [5] Gu B X, Wang L M, Minc L D, et al．Temperature effects on the radiation stability and ion exchange capacity of smectites．Journal of Nuclear Materials, 2001, 297: 345 [6] Bell G, Bensted J, Glasser F P.
Advances in colloid and interface science, 1982, (18): 57 [8] Hu J L, Wang Z Q.

The proportion of the raw materials was decided as material 2#: material 3#: material 4#: mineral powder=31%:59%:6%:4%; the target porosity is 20%, and the optimum concrete content is 4.8%.
After surface modification of the nano-materials using the above method, we performed material property test to the modified nano-TiO2 particles.
Surface Chem ical Properties of Nano-zirconia Suspension, Materials Science and Engineering,17(3) (1999), p. 23-26
[3] Meng Chena, Yanhua Liu，NOx removal from vehicle emissions by functionality surface of concrete road, Journal of Hazardous Materials, 174(2) (2010), p.375-379
Photocatalysis of cementitious materials: clean buildings and clean air.

Another possibility for more seeking time is when more heavy weight existed at the connecting part with anti-friction materials as shown in Fig. 2(b), due to keeping the original mechanism of a sled without modification.
LeClair: Journal of Sound and Vibration Vol. 160 (2) (1993), p. 289-300 [11] G.
Sharp: Journal of Sound and Vibration Vol. 47(3) (1976), p. 415-432 [12] W.
Azimi: Journal of Sound and Vibration Vol. 135 (2) (1989), p. 177-195 [14] S.S.H.
Liu: The Journal of the Acoustical Society of America Vol. 58 (4) (1975), p. 828-831

Experimental Materials.
Sunflower stalk pretreated by concentration of 3% KCl solution (Sample 2): Put 1g original materials into the concentration of 3% KCl solution of 20ml, and then swayed, filtrated, and dried for experiments Sunflower stalk pretreated by concentration of 10% KCl solution (Sample 3): Put 1g original materials into the concentration of 10% KCl solution of 20ml, and then swayed, filtrated, and dried for experiments.
The value of E is higher at low heating rate and lower at high heating rate with respect to overall values , for all materials and using all methods [21].
Journal of Mathematical Chemistry, 2007, 42(3):547-553
Bingjing:Science Press, 2001.

Research on the extract Al2O3 from coal gangue ZHANG Lei 1,a; WANG Hao2,b; LI Yu 3,c; 1College of Geology and Environment, Xi’an University of Science and Technology, Xi’an, 710054, P.R.
China aleizh1981@sohu.com, bwanghao1689@gmail.com, c 853896849@qq.com Keywords: coal gangue; acid leach method; Al2O3 extraction rate Abstract: The experiments selected Wang Taipu gangue as raw materials and adopted single factor experimental method to study the leaching of aluminum oxide from gangue by using hydrochloric acid as leaching medium.
Al2O3 is an important basic material in metallurgy and smelting aluminum.
Acknowledgement This work was financially supported by The Project Supported by Natural Science Basic Research Plan in Shaanxi Province of China（ Program No. 2011JQ2015） References [1] Zhongai Gao, Menglan Qi.
Journal of Ecology and Environment, 2009, 11(9):19-26(in Chinese) [3] Zhengxian Ma, Zhijun Ma, Yundong Ma.