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Up to date, a large number of materials have been explored as shell candidates for PCMs, including organic polymers, inorganic materials, and organic-inorganic hybrids.
Experiment 2.1 Materials.
Deionized water was purchased from Qingdao Reno New Materials Co., Ltd.
All chemicals and materials were used as received without further purification.
[32] He M, Yang L, Lin W, et al., Preparation, thermal characterization and examination of phase change materials (PCMs) enhanced by carbon-based nanoparticles for solar thermal energy storage, Journal of Energy Storage 25(2019) 100874

The Application of Optical Emission Spectrum in Copper Film Deposition by RF Magnetron Sputtering Jia-jun LIa, Yan-chao SHIb, Hao LIUc, Guang-chao CHEN* College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, China alijiajundexin@163.com, bshiyanchao12b@mails.ucas.ac.cn, cliuhao13@mails.ucas.ac.cn Corresponding author, gcchen@ucas.ac.cn Keywords: OES, RF magnetron sputtering, plasma diagnose, adhesion strength, ,electronic resistance Abstract.
Physica Status Solidi a-Applications and Materials Science. 209 (2012) 1697-1702
JOURNAL OF MATERIALS SCIENCE LETTERS. 22 (2003) 743-745
[17] Beijing: Science Press, 2010: 6.
Plasma Sources Science and Technology. 15 (2006) 42-51

Because the idea of sustainable public infrastructure in Taiwan has recently encouraged the use of renewable materials in the design phase, parts of this road’s pavement structure is composed of recycled asphalt concrete, renewable agents, disposed construction surplus and the like.
In addition, the study suggests that non-destructive testing can be one requirement for the acceptance of completed work in pavement projects with renewable materials to better evaluate the quality of the pavement after its construction.
The second reason is the low stiffness of the materials in the subgrade and the subbase.
Regarding the use of renewable materials in the following pavement projects, it is suggested that the surrounding underground water condition should be taken into consideration in the design phase.
As for the acceptance of the quality of a pavement project, although random sampling is generally employed, it is suggested that in projects in which renewable materials are used material testing should be done for potentially-damaged positions sampled by non-destructive testing to ensure the minimum quality of the project can fit the standard of the original design.

Fatigue Fracture Propagation Random Process Model for Reinforcing Steel Bar in Reinforcing Concrete Structure Hongbing Zhu 1,2,aand Zhiwu Yu 1,b 1 School of Civil Engineering, Central South University, Changsha 420000, China 2 School of Civil Engineering, Wuhan University of Science and Technology, Wuhan 430070, China a hnhyzhb@163.com, bzhwyu@mail.csu.edu.cn Keywords: Reinforced Concrete, Markov Stochastic Process, Fatigue Fracture Abstract.
Erected of Fatigue Fracture Propagation Random Process Model of Reinforcing Steel Bar Because of the randomicity of the reinforcing steel bar's material properties and the load endured by RC beams, the emergence of fatigue crack is a random process, and same as the crack's development as well as fatigue destruction process.
sK , rK are the materials properties, and which value can be determined through experiment. τK can obtained through calculation[6].
China Civil Engineering Journal, 2006, 39(9):32~38
Journal of Northwestren Polytechnical University, 2001,19(2):229~232

It is consist of elastic components and damping elements made in parallel with each other, and its constitutive relation is , where ，，， is equivalent damping ratio, ω is frequency of damper, and are equivalent stiffness and equivalent damping coefficient respectively, we can get the value of and from above formula and material constants, that ＝5×105N/m, ＝6.2×103N·s/m.
Acknowledgements This work was financially supported by the Shandong Jiaotong University Natural Science Foundation (Z201016).
Shape memory alloys as new materials for seismic isolation.
Journal of Engineering Mechanics,1991,117(11):2590-2608
International Journal of Non-linear Mechanics, 2002, 37(8): 1375-1386.

Numerical Simulation on the Liquid Metal Flow of the Acceleration Phase in the Shot Sleeve of Cold Chamber Die Casting Process Jie Yang 1, a , Lang Yuan 1, b, Shoumei Xiong 1, c and Baicheng Liu 1,d 1 Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China a j-y03@mails.tsinghua.edu.cn, byuanlang99@mails.thu.edu.cn, c smxiong@tsinghua.edu.cn, dliubc@tsinghua.edu.cn Keywords: Numerical simulation, Shot sleeve, Air entrapment, Slow shot phase Abstract.
The material of the molten metal is ADC12 aluminum alloy.
Lopez, et al: ASME Journal of Manufacturing Science and Engineering Vol.125(2003), p.529 [5] J.
Hernandez, et al: ASME Journal of Fluids Engineering Vol.125(2003), p.315 [6] L.

Compressive strength: place the sample on a testing machine and load at a rate of 0.1 MPa, until the destruction.Limit deflection and flexible toughness: use material testing system (MTS) to measure the load-deflection curve of rubber mortar model (100mm × 100mm × 300mm) under the action of load (subway dynamic load), measure vibration amplitude trends over time and calculate damping ratio, limit deflection and bending toughness.Dynamic modulus: Place the specimen on the laboratory bench to drop weight impact test to measure dynamic strain, and the ratio of dynamic stress and dynamic strain is the dynamic modulus.
Therefore, when rubber mortar is used as grouting materials, it is the best that rubber powder accounted for about 25% of sand volume, and it can be adjusted according to the strength requirements.
Surface Characterization of Recycled Tire Rubber to Be Used in Cement Paste Matrix[J]．Journal of Colloid and Interface Science, 2002,248 ( 2) : 521-523
Experimental study of dynamic compressive strenghth properties of rubber concrete[J].Journal of natural disaster,2007,16(5): 135-142

Design and Experimental Research on Double-Pitch Time-Sharing Meshing Silent Chain Song Ding1,2, Xiaolun Liu1, Yingbo Zhang2, Jiguang Lu3, Jiajun Liu1, Guoyu Zhu1 1 College of Mechanical Science and Engineering, Jilin University, Changchun, China 2Shool of Mechanical Engineering, Changchun Normal University, Changchun, China 3Hangzhou Dong Hua Chain Group Co.
The chains for test are double-pitch time-sharing meshing silent chain and double-pitch roller conveying chain, the pitch is P=15.875mm and the pitch number of chain is , the tooth number of main driven wheel, tight-side working tension of chain:, pressure oil-spraying lubrication, the material and heat treatment process of tested chain are exactly the same, and the strength is evenly distributed.
Advanced Materials Research. 2011, V291-294
Journal of Mechanical Design. 1999, Vol. 121.402-408
Journal of Mechanical Design. 1994, Vol. 116.842-848

Set the diameter of the disc-patch to 150mm, the height of the dielectric-layer to 20mm, and the relative dielectric constant of the dielectric-layer material to 3.
Set the diameter of the spiral conductors to 150mm, the height of the sensor to 40mm, and the relative dielectric constant of the dielectric-layer material to 3.
Set the diameter of the signal receiving patch to 150mm, the height of the sensor to 40mm, and the relative dielectric constant of the dielectric-layer material to 3.
Journal of Chongqing University (Natural Science Edition), 2008, 31(1): 29-33
Chinese Journal of Scientific Instrument, 2005, 26(7): 705-709, 737; [10] ORR P J G, REID A J, JUDD M D.

Specimen material is 45 steel, and diameter is 30mm.
Acknowledgement The study is sponsored by the National Special Project of International Cooperation in Science and Technology (S2013HR0021L),Key Scientific and Technological Project of Fujian (2012H0034), and Scientific and Technological Project of Quanzhou (2012Z122), and Ph.D.
Zhou: Advanced Materials Research, Vol. 696 (2011), p. 201-203
Zhang: Chinese Journal of Scientific Instrumental, Vol. 30 (2009) NO.9, p.1991-1995
Dai: Journal of Scientific Instrument, Vol.31 (2010) NO.11.