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Feng et al. [13] summarized that a number of factors such as:the recycled aggregate concrete,the ratio of water and cement,the variety and dosage of gelled material, curing conditions and the load would have important influence on the carbonation.
,Meddah, M,S. and Ouchagour,Y., “Use of recycled concrete aggregate in fly-ash concrete”, Construction and Building Materials 27(1),439-449(2012)
Jingwei “Mesh-level Simulation of Chloride Nonlinear Diffusion in Modeled Recycled Aggregate Concrete”, Jourmal of Building Materials, Vol.16 No.5, (2013) (In Chinese) [6] Y.
) [17] Z. li and Z wei “Dry Shrinkage Features of High-strength Recycled Concrete” Journal of Civil, Architectural & Environmental Engineering, Vo l. 32 No.4,125-130(In Chinese) [18] F.Yuhui,X.
Jianzhuang, and C.Ming ,Fundamental test on creep characteristics of recycled aggregate concrete,Journal of southeast university ,Vol.44 No.3,638-642, (In Chinese) [19] A.

Monteiro: Journal of Materials Research and Technology Vol. 9 (2) (2020), p. 1734
Monteiro: Journal of Materials Research and Technology Vol. 8 (5) (2019), p. 4221
Monteiro: Journal of Materials Research and Technology Vol. 8 (6) (2019), p. 6051
Monteiro: Journal of Materials Research and Technology Vol. 9 (1) (2020), p. 622
Braga: Journal of Materials Research and Technology Vol. 9 (1) (2020), p. 115

Suspended mobile asked magnetic fluid flow is good, the initial low viscosity and good rheological properties of materials.
Vekas: submitted to Journal of Magnetism and Magnetic Materials (1987) [2] L.
Bica: submitted to Journal of Magnetism and Magnetic Materials(1987) [3] S.
A.Sokolov: submitted to Journal of Magnetism and Magnetic Materials(1990) [4] H.Takimoto, Y.Takeda and Masubuchi, et al: submitted to Journal of Modern Physics B(1999) [5] H.Yamaguchi: submitted to Journal of Thermo physics and Heat Transfer(2003) [6] D.Bica , L.Vecas and L.Rasa: submitted to of Magnetism and Magnetic Materials(2002) [7] H.
W.Wang: submitted to Journal of Materials and Manufacturing Processes(2005) Acknowledgements: We are grateful for the support of Natural Science Foundation of Fujian Province (No:2010J01007).

Depth reduction materials are the complex refractory iron ore, and reduction process includes not only the reduction of iron oxides but also the reduction of other minerals and more complex reaction between the minerals [1].
The results showed that the restore sequence of iron oxide in reduction process is Fe2O3 → Fe3O4 → FeO → Fe; The depth reduction process can be divided into three stages: nucleation, reaction and grow, and the finally obtained metallic iron exists in reduction materials in the form of iron particles.
[11] Chengyan Xu, Tichang Sun, Chaoying Qi, etc.: Journal of University of Science and Technology Beijing, 2011, 33 (8) : 905-910
[19] Kanazawa Y, Kamitani M: Journal of Alloys and Compounds, 2006, 408: 1339- 1343
[23] Tichang Sun, Yanna Ji, Mang Jiang: Journal of University of Science and Technology Beijing, 2011, 33 (10) : 1197-1203.

(1) Hot extruding forming: Raw materials are the bars after solution treatment.
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Introduction For brittle rock materials, the damage course of rock is related to inner crack propagation.
For elastic-brittle materials such as granite, during the course of compression, it only produces elastic deformation.
Most materials release acoustic when deformation and fracture.
If the load is increased flatly, materials go through such stages as elastic, injury, damage and buckling in turn.
Journal of Liaoning Technical University (Natural Science), 4(2001),p.474 [6].

Introduction Building-Integrated Photovoltaics (BIPV) are photovoltaic materials that are used to replace conventional building materials in parts of the building envelope such as the roof, skylights, or facades.
The dye-sensitized solar cell (DSSC) is an attractive candidate for a new renewable energy source because of the low-cost materials and the facile manufacturing used in its production than conventional Si solar cells[1, 2].
Acknowledgements The authors would like to acknowledge financial support from Start Fund of Hebei University of technology, China postdoctoral Science Foundation funding(2011M500197) and Hebei province science and technology support program(10213946).
Ito, et al., "High-efficiency organic-dye-sensitized solar cells controlled by nanocrystalline-TiO2 electrode thickness," Advanced Materials, vol. 18, pp. 1202-1205, May 2 2006
Guo, et al., "Effect of N Dopant Amount on the Performance of Dye-Sensitized Solar Cells Based on N-Doped TiO2 Electrodes," The Journal of Physical Chemistry C, 2011

Journal of Functional Materials. 2005, 36(6): 934-944
Journal of Aeronautics, 2006, 27(3):536-539
Journal of Aeronautical Materials. 2006, (6): 50-54
Mechanical Science and Technology, 2000, 19(6):977-980
Materials Science and Technology, 2005, 13(3) :225-227 [14] Yan Hui.

On the time domain, strong dependencies were found for both materials for tool wear, cutting force and feed force.
The relationship between tool life and cutting speed for both materials is presented in Fig. 1 (c).
Cutting force is presented in Fig. 5 as function of flank wear for the evaluated materials.
Flank wear (VBMax) showed a linear relationship with cutting force for both materials tested.
Journal of Refractory Metals & Hard Materials 28 (2010) 349-361

The recommended materials to make membrane separating equipment are polymers, as shown in Table 5 below.
About membrane, although cellulose acetate is more indicated because of it price, many materials offering better conditions have already studied.
Gabieri, Engineering evaluation of CO2 separation by membrane gas separation systems, Journal of Membrane Science, 454 (2014) 305-315
Hagg, Hollow fiber carbon membranes: Investigations for CO2 capture, Journal of Membrane Science, 378 (2011) 1-9
Han, Synthesis and CO2/N2 Gas Permeation Characteristics of ZSM-5 Zeolite Membranes, Microporus and Misoporus Materials, 85 (2005) 313-323