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The origin for different attenuation properties is discussed in these materials.
Introduction Ultralight metal materials with a lot of holes have multi-functional properties such as lightweight (ρ<1), high specific strength, damping, anti-noise, heat transfer and so on.
The property of absorbed energy was studied usually in the plastically deforming area in these materials [8, 9], but few report was in the elastic deforming area.
These lightweight materials have high damping properties because of non-uniformity between air and metal framework.
Lu, Science in China (B), Vol.46, No.6, (2003)pp. 521-532 [5] Yang Donghui, He Deping, Science in China (B), 44(4), (2001) p 411 [6] Zhen Mingjun, He Deping, Dai Ge, Science in China (B), 45 (18), (2002)p. 598 [7] Zou Yi, He Deping, Jiang Jiaqiao, Science in China ( B), 47(5), (2004)p.407 [8] Wu Zhaojin, He Deping, Chinese Journal of Applied Sciences, 19(4), (2001) p.357 [9] Zhen Mingjun, He Deping, Chinese Journal of Material Research, 16(5), (2002)p.474 [10] He Deping, Yu Xingquan, Chinese Journal of Material Research, 11(1), (1997) p.101 [11] Liu Changsong, Han Fusheng, Zhu Zhengang, ACTA PHYSCIA SINICA, 46(8), (1997) p. 1585 [12] J.Banhart, J.Baumeister, M.Weber, Materials Science and Engineering, A205, (1996) p.221 [13] Richard Weaver, Ultrasonics, 36, (1998) p. 435 [14] Q.

While all the materials which are transported to the throwing mechanism by inside chain conveyor are contained in the material storage and transportation box.
Liu: Mechanics of Materials (Higher Education Press, China 2011)
Zhang: Finite Element Analysis and Experimental Research of Bulk Materials Automatic Loading and Unloading Truck (Ms.
Kunming University of Science and Technology, China 2008)
Zhao: Journal of the China Railway Society, Vol. 25 (2003), No.2, p.92-97.

The reason for the insulation failure of the cable is that the ambient heat , gives rise to the decomposition by heating of internal insulation materials of the cable through sheath materials finally under the thermal transmission effect.
Heat Release Rate (HRR) is one of the most significant indexes to evaluate the combustion properties of materials [5].
The reason for the insulation failure of the cable is that the ambient heat, under the thermal transmission effect, finally gives rise to the decomposition by heating of internal insulation materials of the cable through sheath materials.
KYCX201619, the Hebei Province Natural Science Foundation of China, Project No.
Peacock, Heat release rate: the single most important variable in fire hazard, Fire safety journal, 18 (1992) 255-272

Introduction Microstructures are at the center of materials science and engineering [1].
Liu, Effect of electric current pulses on solidification of immiscible alloys, Materials Letters. 132 (2014) 66-69
Hari Babu, Refinement of the grain size of the LM25 alloy (A356) by 96Al-2Nb-2B master alloy, Journal of Materials Processing Technology, 222 (2015) 219-223
Kapranos, Grain refinement of AA7075 alloy under combined magnetic fields, Materials Letters. 151 (2015) 38-40
Chen, Real time observation of equiaxed growth of Sn-Pb alloy under an applied direct current by synchrotron microradiography, Materials Letters. 89 (2012) 137-139

Introduction With the development of science and technology, the future of researching and manufacturing new materials is very promising, so more and more attention has been paid to that field.
What’s more, sandwich structure can also be made as exoteric packaging materials for some products [1-3].
The materials of both the upper and nether plate are aluminum alloy [4-6].
Metal sandwich plates optimized for pressure impulses, volume 47 in International Journal of Mechanical Sciences, (2005): 545-569
Dynamic Response of Square Honeycomb Sandwich Plate Subjected to Blast Loading, volume 462 in Journal of Key Engineering Materials, (2010): 462-463

Material and Methods All material used in this study were off analytical grades.
Sam’an, Synthesis and characterisation of pure nanoporous hydroxyapatite, Journal of Physical Science, Penerbit Universiti Sains Malaysia, 22:1 (2011) 25-37
Narayanan, Synthesis and preliminary characterization of polyethylene glycol (PEG)/hydroxyapatite (HAp) nanocomposite for biomedical applications, International Journal of Physical Sciences. 7:13 (2012) 2093
Journal of Membrane Science. 287 (2007) 9-18
(Part 1), Application Surface Science. 235 (2009) 8705-8712

The effect of hot forming on the mechanical properties of materials has also attracted the attention of scholars.
Mechanical Properties and Characteristics of hot formed materials.
Hot stamping processing experiments of quenchable boron steel, Materials Science and Technology. 16(2008)172-175 [10] C.
Microstructure and Mechanical Behavior of New Type Multi-layer Metallic Composite Material in Hot Forming, Journal of Materials Engineering. 5(2011)88-92 [12] C.
Grzyb, Boron-treated micro alloyed quenched and tempered plates, their structure and properties, Journal of Materials Processing Technology, 1997 ,64 [17] Y.X.

Materials and Experimental Details Raw Materials The LDPE matrix used in this study was provided by Titan Petchem (M) Sdn Bhd in solid pellets form with the density of 0.922 g/cm3.
Raw Material Preperation The CG was dried at 100oC in the oven for 3 hours.
Thomas, in: Composites Science and Technology, Vol. 62(3), p. 339-353. (2002) [10] D.
Ratnam, in: Journal of Applied Polymer Science, Vol. 124, p. 5220-5228. (2012) [13] A.
Zaman, in: Journal of Applied Polymer Science, Vol. 81(8), p. 1914- 1925. (2001)

A Comparison on Tailings Treatment and Disposal of Aba Lead-Zinc Concentrator Shu Zhao1,a, Siqing Liu2,*, Baoxu Song2,b, Jize Pan1,c 1Research and Design Institute of Yunnan Tin Group, Gejiu 641000, China 2 Department of Mineral Processing Engineering, Kunming University of Science and Technology, Kunming 650093, China asam647@163.com, b690880140@qq.com, c383070757@qq.com *Corresponding author: 647647@163.com, Fax: +86-0871-5187068 Keywords: Tailings; Dewatering; Dry disposal Abstract.
Then the oversize (dry material A) and the dry cake (dry material B) can easily be transported to the stock pile.
Once the worked out section has formed, the dry tailings material can be moved to there by carry-scrapers directly.
References [1]Xu Yuming, Dabros T, Kan Jianmin: submitted to Journal of Process Safety and Environmental Protection (2008) [2]Liang Guohai, Hong Xiaopeng: submitted to Journal of Gold (2003) (In Chinese) [3]Naureen Alam, Orhan Ozdemir, Marc A.
Nguyen: submitted to Journal of Fuel (2011) [4]Fang Yonghao, Gu Yamin, Kang Qiubo, Wen Quan, Dai Pin: submitted to Journal of Construction and Building Materials (2011) [5]Luis Moreno, Ivars Neretnieks: submitted to Journal of Hydrometallurgy (2006)

Explosive can increase compressive strength of concrete material.
According to the test [5-7], fluid concrete molding material by explosion under the explosive dosage 0.9kg, 1.2kg and 1.8kg is got.
Its mixture ratio, material is the same as the concrete by explosion.
Acknowledgements The financial support of the National Natural Science Fund (No.10672091) is gratefully acknowledged.
In: Proceeding of the 2007 International Autumn Seminar on Propellants, Explosive and Pyrotechnics, edited by Ping Huang, Yajun Wang and Shengcai Li, volume 7 of Theory and Practice of Energetic Materials, Section, 3, Science Press (2007) [6] Hai-liang Wang, Chang-gen Feng, Li-qiong Wang: Chinese Journal of Explosives & Propellants Vol.2 (2001), p.12 (in Chinese) [7] Hai-liang Wang, Hui-zhe Ding, Min Ma, Xin-ming Li, in: Proceeding of the 2007 International Autumn Seminar on Propellants, Explosive and Pyrotechnics, edited by Ping Huang, Yajun Wang and Shengcai Li, volume 7 of Theory and Practice of Energetic Materials, Section, 3, Science Press (2007) [8] Hai-liang Wang, Xin-ming Li, Hui-zhe Ding, Chang-wei Zhao: Science & Technology Review Vol.25 (2007), p.38 (in Chinese)