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Cohesive Zone Damage-Healing Model for Self-Healing Materials Rashid K.
Several attempts were made to model self-healing materials [5-7].
Solomon, "Self-healing polymeric materials: A review of recent developments," Progress in Polymer Science, vol. 33, pp. 479-522, 2008
Wudl, "A Thermally Re-mendable Cross-Linked Polymeric Material," Science, vol. 295, pp. 1698-1702, 2002
Masad, "A micro-damage healing model that improves prediction of fatigue life in asphalt mixes," International Journal of Engineering Science, vol. 48, pp. 966-990, 2010

According to the above analysis, the rise and fall of the material to the resonant vibration motivation working surface can be written as impact Among them:vm for when the material fell back to work surface of the vertical direction of speed; Δ t for materials and the impact of the work surface contact time; So the impact phase difference forΔφ = ω Δ t; The material fell back to work the speed of the surface, the type (5) get: Among them: x2d apex geological work for material surface of vertical velocity component; x2z for material fall back to work on the direction of the surface geological vertical velocity component.
Analysis of characteristics of pseudo-resonance and anti-resonance [ J ].Journal of Vibration and Acoustics Transactions ASME, 1996, 118:663-667
Journal of East China Jiaotong University, 2006(1):129-131.
The method of dynamic analysis of variable mass in vibration screen motion [J].Chinese Journal of Mechanical Engineering, 1990, 26(3):58-64.
Beijing: Science Press, 2007.

Theory In MPM, a material is discretized into a collection of np material points [1,2].
Thanks to the high pressure, materials show fluid characteristic.
Material burst happened on the interface.
Acknowledgment The support of the National Natural Science Foundation of China (No.10772055) is acknowledged.
Brian, Vander Heyden, Xia Ma: Journal of computational physics Vol. 227(2008), p. 3159 [3] Sulsky D, Chen Z, Schreyer H L: Computer Methods in Applied Mechanics and Engineering Vol. 118(1994),p. 179 [4] Keh-Ming Shyue: Journal of Computational Physics Vol. 171 (2001), p. 678 [5] Piekutowski A J: International Journal of Impact Engineering Vol. 26 (2001), p. 613.

Thermal Characteristics of Urban Surface Materials G.
Vallatia a Department of DIAEE, “Sapienza” University of Rome, Via Eudossiana, 18 -00184 Roma Italy Keywords: Heat Flux, Materials Properties, Thermal Comfort.
These interactions are mainly based on surface radiation and energy balances, which are ruled by physical properties of construction materials.
The proposed study aims to analyze the influence of vegetation and of surface materials on the microclimate of an urban area.
A very simple model has been considered: a square of fixed size that has at its centre a test area of different surface properties: asphalt, grass, trees, sun reflecting materials. 2.

According to the survey (Table 5), it shows that new materials are needed in many parts of the Dragon and Lion Dance equipment, which proves old materials can’t meet the actual needs.
Lion body uses good permeability materials to avoid suffering high temperature in it.
New equipment materials are durable and can be reused.
Journal of Beijing University of Physical Education, Vol.26(2003),P.605 [3] YU Shui-qing, in: Chinese martial arts history overview (Hubei science and technology press, Wuhan 2006)
Journal of Beijing University of Physical Education, Vol.27(2004),P.1178

Quality Control of Materials in Pressure Pipeline during the Installation Ping Li Editorial Office of Journal of Jiujiang University, Jiujiang JiangXi 332005 wlip2006@sohu.com Keywords: Pressure pipe; Construction materials; Quality Control Abstract.
Procurement pressure pipeline construction materials Construction Materials pressure pipeline installation project refers to materials engineering entities, such as piping components, bearing, welding materials and other construction materials consumption.
Pressure pipeline construction materials Keep the pressure on the pipeline construction materials should have the necessary materials warehouse and material storage yard and other infrastructure, and must satisfy the requirements of storage conditions and protective material performance requirements.
[2] Meng Zhiliang, Li Hongbin, Chengya Peng Building Materials [M] Beijing : Science Press, 2001
[6] Wang man, Tu Mei had re- estimates Basin Water Allocation Based on AHP [J] Tongji University : Natural Science, 2005, 33 ( 8 ) : 1133.

Experimental Materials.
Journal of Oil and Gas Technology, Vol. 28 (2006), No. 2, P. 105 (in Chinese) [14] H.
Journal of Daqing Normal University, Vol. 29 (2009), No. 6, P. 114 (in Chinese) [15] R.
Journal of the Chinese Ceramic Society, Vol. 36 (2008), No. 3, P. 391 [16] Y.
Petroleum Science, Vol. 8 (2011), No. 8, P. 207

Zhang, “Electrospun nanofiber: Emerging reinforcing filler in polymer matrix composite materials,” Progress in Polymer Science, vol. 75, pp. 73–107, Dec. 2017. doi:10.1016/j.progpolymsci.2017.08.002 [2] D.
Hassan, “Tensile properties characterisation of hybrid luffa/GCW fiber reinforced polymer composite,” Materials Science Forum, vol. 1111, pp. 77–82, Dec. 2023. doi:10.4028/p-tw3ujj [7] C.
Cantwell, “Damage characterisation on PP-hemp/aluminium fibre–metal laminates using acoustic emission,” Journal of Composite Materials, vol. 47, no. 18, pp. 2265–2274, Aug. 2012. doi:10.1177/0021998312457098 [8] R.
Sawawi, “The low velocity impact properties of pandanus fiber composites,” Materials Science Forum, vol. 895, pp. 56–60, Mar. 2017. doi:10.4028/www.scientific.net/msf.895.56 [17] "ASTM International", ASTM D3039.
Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials.

Recovery of copper and cobalt from spent aerospace material with pollution-free oxidant Yuebin Xiaoa, Xuejiao Zhoub, Lei Caoc, Ya Gaod, Da Liue, Ming Yuanf, Wentang Xiag School of Metallurgical and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China a xiaoyb540@126.com, bzxj040203017@126.com, ccaol540@126.com, dgaoy540@126.com, eliud540@126.com, fyuanm540@126.com, gwentangx@163.com Keywords: copper; cobalt; pollution-free oxidant; spent aerospace material Abstract: The acid leaching of spent aerospace material with pollution-free oxidation is discussed.
Spend aerospace material used in this work collected from an aerospace material company.
Once at this temperature, 50 g of spent aerospace materials were added with addition of 0.027 mol·L-1·min-1 of pollution-free oxidation.
Qi: Journal of Changchun University of Science and technology Vol. 30 3 (2000), p.310-312.
Yang: Journal of Metal in China Vol. 36 (2010), p16-17.

The Biological materials energy stays at the top of renewable resources.
The Chinese Government and relevant departments attach great importance to the use of Biological materials energy and the National Science and Technology Commission has taken the research and application of Biological materials energy technology as a key research project in continuous three national five-year plans.
Development of Biological materials energy mainly uses the biogas technology, Biological materials pyrolysis gasification technology and biomass liquid fuel technology and so on.
Development measures of Biological materials energy Based on the prospects for the development of Biological materials energy, we put forward the following measures.
Size distributions of polycyclic aromatic hydrocarbons-gas/particle Partitioning to urban aerosols[J].Journal of Aerosol Science,1999,30:759～770