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Reverse logistics (RL) is defined as: the process of planning, implementing and controlling the efficient, cost-effective flow of raw materials, in process inventory, finished goods and related information from the point of consumption to the point of origin for the purpose of recapturing or creating value or for proper disposal [14].
European Journal of Operational Research, vol. 103, 1997, pp. 1-17
European Journal of Operational Research, vol. 138, 2002, pp. 63-75
European Journal of Operational Research, vol.188, 2008, pp. 109-120
European Journal of Operational Research, vol. 95, 1996 pp. 313-324

Microstructure of the material after aging at 850 °С a, x 200 b, х 8000 Figure 3.
The new material has satisfactory values of the microhardness and plasticity coefficient.
In a short time of aging, the material obtains the liability to brittle fracture [7-10].
Liitjering, "Influence of Microstructure on the Mechanical Properties of Udimet 720 LI", Microstructure and Mechanical Properties of Metallic High-Temperature Materials (Eds.: H.
Kazanskii, The analysis of the main structural and mechanical characteristics of EP800 and E1893 alloys to optimize production of the first stage of a GTE-45-3 gas-turbine power plant, Journal of Machinery Manufacture and Relability.

Journal Citation (to be inserted by the publisher ) Copyright by Trans Tech Publications Fabrication of Macroporous Scaffold Using Calcium Phosphate Glass for Bone Regeneration Y.
In addition, it should preferably exhibit osteoinductive characteristics in order to encourage rapid new bone formation although this may require the incorporation of biological factors with synthetic materials.
Several scaffold materials have been investigated for bone tissue engineering including calcium phosphates and synthetic and natural polymers.
Calcium phosphates are ideal candidates for scaffold materials because the mineral phase of the biological bone has been identified as an apatite structure.
The mixture of raw materials was melted in a platinum crucible at 1250 o C and quenched to room temperature.

Volatile organic compounds (VOCs) and semi-volatile organic compounds (SVOCs) respectively are produced from various household electronic appliances used indoors, building or decoration materials and a range of household items too.
There are more possibilities that children can come in direct contact with building materials used in indoor flooring, unlike ceiling and walls.
In particular, flooring materials containing DEHP offer opportunities wherein DEHP can accumulate in high concentrations due to bleed-out on the surface.
Little. (2013), Predicting emissions of volatile and semevolatile organic compounds from building materials: A review.
Salthammer. (2005), Plastics additives in the indoor environment-flame retardants and plasticzers; Science of the Total Environment, 339.

Zhu1,f,* 1Key Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin University, No. 5988 Renmin Street, Changchun 130022, P.R.
In order to further reduce the weight of structural materials, some kinds of lightweight metal (such as Al, Mg and Ti) are utilized [3].
As the lightest metal, magnesium alloy is very suitable for making porous materials [4].
Yang , et al., “Research process on property and application of metal porous materials,” J.
Codd，et al., “Structural ceramic coatings in composite microtruss cellular materials,” Acta Mater. vol.59, pp. 6145-6154, 2011

The modal identification method has the advantage that it is non-destructive and can be used in the case of complex structures built from modern (like composite materials, shape memory alloys, and so on) or classical (like steel, aluminum or cast iron structures) materials.
Zakirov, et. al., Average Elastic and Strength Characteristics of a Honeycomb Core and a Theoretical-Experimental Method of their Determination, Mechanics of Composite Materials, 48 (2012), 511-524 [6] N.I.
Gdoutos, The Effect of Load and Geometry of the Failure Modes of Sandwich Beams, Applied Composite Materials, 12 (2005), 165-176 [8] V.E.
Kryutchenko, Elastic Properties of Honeycomb Sandwich Plates with Non-traditional Cell Forms, Mechanics of Composite Materials, 33 (1997), 132-135 [9] D.J.
Al., Experimental Researches Concerning the Properties of Composite Materials with Random Distribution of Reinforcement, Materiale Plastice, 46:1 (2009), 73-78 [11] I.

The reasons are probably that debris flow is weakening in force or intensity and the supply of material source is becoming gradually less and fine, or it resulted from gravity differentiation[23].
Acknowledgments This study was supported by the National Natural Science Foundation of China (No. 40238059) and the special grand national science-technology project of china (No. 2008ZX05023).
Li: submitted to Journal of Hydrodynamics Ser.
Gong: submitted to Earth Science (Journal of China University of Geosciences) (2004) (In Chinese)
Shanmugam: submitted to Earth-Science Reviews (2002).

Method Material Three kinds of soil, clay, loam and sand were considered and taken from Hunan province in china.
Acknowledgements This study received financial support from the Key Study Project of National Natural Science Foundation of China (50939006), the National 973 Program of China (2006CB403404)，the Key technologies of “Three Red Lines” management in river basin based on the water cycle and its accompanying process (2013ZY02), the Study on Water Ecological Civilization Construction Based on Dualistic Water Cycle and Associated Process Integrated Simulation (2013QN02), and the Creative Research Group Fund Project of National Natural Science Foundation of China (51021006).
Journal of Hydrology, 2006, 324: 10-23
Stratified soil infiltration characteristics during rainfall.Journal of Soil and Water Conservation,2012, 25(5):217-219, 223
Advances in Water Science, 2012, 23(1): 59-66

Shenyang institute of automation of Chinese academy of sciences and Beijing Institute of Technology have studied the transmission of navigation system and motion planning problem respectively.
In order to simplify the calculation of the system, the analysis of the moment of inertia is as follows: 1) The DC servo motor plays a leading role to the moment of inertia, and it occupies a large share in the whole system. 2) The transmission device and the gear mechanism are usually made of aluminum material, the value of inertia converted onto the motor axis is small.
Acknowledgements This paper is supported by the National Science Fund for natural youth (61105099), Shenyang city science and technology project (F12-277-1-70).
Journal of Interventional Cardiac Electrophysiology, 21(1), 19-26
International journal of computer assisted radiology and surgery, 2009, 4(4): 307-315

Study on Mineral Blending Models for Poly-metallic Open-pit Mine Li Dia, HU Nai-lianb, Li Guo-qingc, Gong Jiand State Key Laboratory of High-Efficient Mining and Safety of Metal Mines (University of Science and Technology Beijing), Ministry of Education, China: Beijing, 100083 alidilidi6@sina.com, bhnl@ustb.edu.cn, cqqlee@ustb.edu.cn, dgjd8722@163.com Keywords: mineral blending; poly-metallic deposit; multi-objective model solving Abstract.
The recovery rate of copper and molybdenum is 85% and 70% according to the data material in this mine.
Aknowledgement Supported by the National Natural Science Foundation of China (Grant No. 51104010) Supported by the Fundamental Research Funds for the Central Universities (Grant No.
Journal of University of Science and Technology Beijing. 2002(3): 239-242
Journal of University of Science and Technology Beijing. 2010(9): 1107-1112