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Retaining walls are made of various materials [3-8].
Materials and Methods A modified cement-sand mortar based on slag Portland cement and stabilized slag suspension was used as an object of the study.
Portland cement clinker (PC), natural gypsum, blast-furnace granulated slag (BFGS), and a polycarboxylate-based plasticizer were used as starting materials.
The chemical composition of the materials is presented in Table 1.
Smirnova, Concrete mixtures with high-workability for ballastless slab tracks, Journal of King Saud University-Engineering Sciences. 29(4) (2017) 381-387

Generally, the mid carbon steel and the spring steel can be selected as electrode materials of the micro-machining method.
Electrochemical Micro machining [J].SCIENCE, Issue 289,2000, pp.98-101
[4] B.Bhattacharyya, J.Munda, Experimental Investigation into Electrochemical Micromachining (EMM) Process[J], Journal of Materials Processing Technology, Issue 140, 2003, pp.287~291
Selected problems of micro electrochemical machining[J], Journal of Materials Processing Technology, Vol. 149, Issue1-3, 2004, pp. 426-431
Optimal Design and Test of Ultrasonical Vibration System[J], Applied Mechanicals and Materials, Vol. 226, Issue 1, 2012, pp. 21-25

The Importance of Residual Stresses in Microelectronic Products and Materials Wolfgang H.
Moreover, the materials usually age (cf., Fig. 3)and their material parameters will change over time.
Micro Materials, Micro Mat '97, Berlin, 1997, pp. 890-895
Müller: International Journal of Solids and Structures, Vol. 37 (2000), pp. 3841-3871
Müller: Computational Materials Science, Vol. 21 (2001), pp. 159-184

Compared with any of its composed materials, the excellent performance of composite ceramics mainly includes high strength, high creep strength, high heat endurance, etc [1, 2].
Acknowledgments This work is supported by the National Natural Science Foundation of China under grant no. 10872216 References [1] J.Y.
Fabrication of nano-micron Al2O3-ZrO2 Ceramic Eutectic Composite from the Melts by the SHS Metallurgical Process, Key Engineering Materials. 280-283 (2005) 1053-1056 [3] Xinhua Ni, Jian Zheng, Xiequan Liu, Baohong Han.
Chinese Journal of Solid Mechanics, 2(2009)116-121
Average stress in matrix and average energy of materials with misfit inclusion, Act.

Hypergraphs of transverse vibrating beam as representation of transformation (6) The Algorithms of Exact Method Obtaining of the Dynamical Flexibilities of Subsystem – Transverse Vibrating Beam – of the Mechatronic System In the global case, the equation of motion of the beam is considered at first: (7) here: – deflection at the time moment t of the lining beam section within the distance x from the beginning of the system, E – Young modulus, – mass density of material of the beam, I-polar inertia moment of the beam cross section, F – area of the beam cross section.
Acknowledgements This work has been conducted as a part of research project N N502 452139 supported by the Ministry of Science and Higher Education in 2010–2013.
Journal of Achievements in Materials and Manufacturing Engineering, International OCOSCO World Press 28(2) (2008) 159–166
Journal of Achievements in Materials and Manufacturing Engineering, International OCOSCO World Press 28(1) (2008) 43–46
Wróbel, Computer aided analysis of piezoelectric plates, Solid State Phenomena, Mechatronic Systems and Materials: Mechatronic Systems and Robotics 164 (2010) 239–242.

Several wear mechanisms [6-8] have been proposed to describe the characteristics of material removing during sliding.
In this paper, we mainly consider the seal between the rotary steel shaft and viscoelastic material rubber: O-ring.
In order to build microscopic contact model, we used the distinct element method PFC2D, the microscopic contact model is built as in Fig.3: Fig.3 The microscopic initial structure of the seal model The green particles in the top of the model represent steel materials and the yellow ones represent O-ring.
Journal of the University of Petroleum, China, 1990, 14(3): 62-70
Chinese Journal of Mechanical Engineering, 2000, 36(2): 29-33.

The material of workpiece would be extruded by cutting edge, which under the cutting line.
Key Engineering Materials, 2011,Vol.467-469, p197-201
Journal of Wuhan university of technology. 2010,34(1) [5] W.G.
Key Engineering Materials, 2012, Vol. 499, p307-311
[6] Luo A A.Journal of the Minerals,Metals and MaterialsSociety [J] 2002,54(2):42

The protective material was polyethylenimine (PEI).
By using the protective materials like PEI, we can form the nanoparticles of noble metal separated from each other, and the size of particles can be controlled in single nano-size [7,8].
Stroeve, Innovation in concentrated solar power, Solar Energy Materials & Solar Cells. 95 (2011) 2703–2725
Kuo, Gold nanoparticles prepared using polyethylenimine adsorbed onto montmorillonite, Journal of Colloid and Interface Science. 293 (2006) 101-107
Wang, Materials Chemistry and Physics. 96 (2006) 29-33

Materials Science and Engineering: A 302, (2001) 37–45
Materials Science and Engineering: A 612, (2014) 217–222
Materials Science and Engineering: A 656, (2016) 67–74
Materials Science and Engineering: A 433, (2006) 175–181
Materials Science and Engineering: A 639, (2015)1–7

In order to provide scientific support for ecological restoration of slop, seed germination and seedling establishment of L. perenne were tested under different concrete content in vegetation concrete matrix through a controlling experiment. 1 Materials and methods 1.1 Experimental design L. perenne seeds were used as experimental materials.
Acknowledgements This work is supported by China national Natural Science Foundation Project (51079076).
Pratacultural Science, 2002, (2): 66～69 [2] Qun-shan Li, Sheng-wen Zou.
Journal of Zhejiang Forestry Science and Technology 2004，24(4): 63～66, 73
Chinese Journal of Applied Ecology, 2011, 22(10):2604～2608