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Considering the advantages and disadvantages of two kinds of structure optimize the combination of sound absorption materials, adding in the perforated resonance basis, considering the combination of sound absorption material and cavity and thickness of the sound absorbing material for absorbing materials, at least to sound absorption effect is the best.
In anechoic chamber is provided with a sound barrier on different absorption materials, different top shapes of insertion loss measurement.
In the test of the same kind of structure by using different sound barrier sound absorbing materials were tested to obtain data, sound absorption properties of different absorption materials; insertion loss by replacing the top structure to test different, get the curves of different structure influence on insertion loss.
Journal of Sound and Vibration. 251 (2001) 671-681
Journal of Sound and Vibration. 315(2008) 239-257

Holographic anti-counterfeiting packaging materials can exhibit a variety of effects, such as dual-channel, gray scale, micro text, invisible watermark, the flash effect and so on [3].
Experiment principle Experimental Mmethod First, coat the polyester film (PET) with composite resin and cool it, then transfer the graphic information to the film by templating; follow that coat the film with aluminum by vacuum evaporation method and paste the aluminum layer with graphic information to paper, then after the printing process cigarette packaging materials could be obtained.
[3] Jie Fang Xing, Yuan Chen, Lu Jun He: Applied Mechanics and Materials Vol. 312 (2013), p. 597-602
[7] Gong Jian-xun, Liu Zheng-yi, Qiu Wan-qi, et al: Vacuum Science and Technology (China) Vol. 24 (2004), p. 359-362
[8] Ma Yun-zhu, Cui Peng, Liu Wen-sheng, et al: Journal of University of Science and Technology Beijing Vol. 33 (2011), p. 188-192.

Lifespan of polymer materials can be changed by incorporation of additions to polymeric matrix.The present study aimed to evaluate the influence of crystal violet dye in polystyrene matrices when irradiated by visible radiation.
The presence of additives in the polymer matrix can modify the properties of the polymers and alter the lifespan of these materials [2,3].
In this sense, the present work had as objective to evaluate the effect of crystal violet dye in polystyrene films when irradiated with visible light Materials and Methods Materials and reagents For execution of this work were used the reagents of analitic degree: polystyrene (Aldrich, MM=280.000 g.mol-1), chloroform (Synth), deuterated chloroform (Aldrich) and crystal violet dye (Vetec).
Mckeller: Aplied Science (1980)
Rai: Journal of Colloid and Interface Science Vol. 362 (2011), p. 532.

It is good practice to test materials in isothermal conditions.
Bingfen, Thixotropic deformation behavior of semi-solid AZ61 magnesium alloy during compression process, Materials Science & Eng. 132 (2006) 179-182
Mary, Constitutive behavior of as-cast aluminum alloys AA3104, AA5182 and AA6111 at below solidus temperatures, Materials Science & Eng. 527 (2010) 7812-7820
Glowacki, The physical and computer modeling of plastic deformation of low carbon steel in semi-solid state, Journal of Engineering Materials and Tech. 131 (2009) 041003-1–041003-7
Glowacki, Modeling of strain-stress relationship for carbon steel deformed at temperature exceeding hot rolling range, Journal of Engineering Materials and Tech. 133 (2011) 021008-1–021008-7.

Ralph, H.C Yuen and W.B Lee, Journal of Materials Processing Technology, 63(1997), (339-353)
Deng, , Materials Science and Engineering A. 390 (2005), Pp. 98–112
Guzmán, Journal of Materials Processing Technology. 189 (1-3) (2007), p. 344-351
Materials Science and Engineering A. 479 (2008), Pp. 164-170
Mukherjee and G.S Upadhyaya, Materials Science and Engineering.

Rajashekhar, Slip effects on peristaltic transport of Casson fluid in an inclined elastic tube with porous walls, Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 43 (2018) 67-80
Prasad, Role of slip and heat transfer on peristaltic transport of Herschel-Bulkley fluid through an elastic tube, Multidiscipline Modelling in Materials and Structures, 2018
Ahmad, Velocity and thermal slip effects on peristaltic motions of Walters-B-fluid, International Journal of Heat and Mass Transfer, 96 (2016) 210-217
Tariq, Influence of wall properties on the peristaltic flow of a dusty Walter’s B fluid, Journal of the Brazilian Society of Mechanical Sciences and Engineering, 40 (2018) 368
Hayashi, Hydrodynamic lubrication of journal bearings by pseudoplastic lubricants, Bulletin of JSME, 69 (1971) 268-278

Blends or composites of PANI with other polymers or inorganic materials can provide new synergistic properties that cannot be attained from individual materials [4,5].
The use of PANI blends (composites) as anticorrosion coatings had been explored as the potential candidates to replace the chromium-containing materials, which have adverse health and environmental concerns [6-8].
The materials for the XRD experiments were in ground powder form.
Ye, et al, Corrosion inhibition of carbon steel by polyaniline nanofibers, Materials Letters. 62 (2008) 1775-1778
Xu, Preparation and Surface Properties of Core-Shell Polyacrylate Latex Containing Fluorine and Silicon in the Shell, Journal of Applied Polymer Science, 119 (2011) 1576-1585.

The concrete is homogeneous isotropic materials; 3.
Scientific Research Startup Funds of Jiangxi Science & Technology Normal University (3000990105), which is gratefully acknowledged.
Journal of Structural Engineering.
Thermal effects on skewed steel highway bridges and bearing orientation[J].Journal of Bridge Engineering, ASCE, 2003, 8(2):57-65 [3] SONG Yupu, LI Chaoyang.
China Ocean Engineering, 2001, 15(3):429-435 (in Chinese) [4] T Kadir, A Zisserman, M Brady．An affine invariant salient region detector[J]．Lecture Notes in Computer Science．2004:228-241 [5] D.

College of Automation and Electronic engineer, Qingdao University of Science & Technology, Qingdao 266042 3.
College of Science, China Jiliang University, Hangzhou 310018, P.
Qu Suboptimal Control for Plants with Time Delay Based on Prescriped Degree of Stability [J] Journal Of Shandog Institute Of Building Materials,1999, 13(1) :38-41
Journal of Qingdao University, 1997 12( 3 ): 68-70
Indefinite stochastic LQ Problem with Exponential Stability Degree Constraint [J] Journal of Shandong University (Natural Science), 2008, 43(5): 58-6.

Materials and methods Mutton samples 72 mutton samples of 25 ten-month old Tan-sheep Lambs (forelegs, hind legs and ridges) were collected from Ningxia Laoheqiao halal meat ware Co.
Prediction of mutton chemical composition by near infrared reflectance spectroscopy[J].Journal of nuclear agricultural sciences,2012 26(3) 500-504
Journal of Food Engineering, 2011 104(3) 332-340
Innovative Food Science and Emerging Technologies, 2012 16 218-226
Journal of Food Engineering, 2012 110(1) 127-140.