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Box 137, School of Astronautics, Harbin Institute of Technology, Harbin 150001, P R China 2Department of Mechanical Sciences and Engineering, Tokyo Institute of Technology, 2-12-1, O-okayama, Meguro-ku, Tokyo 152-8552, Japan awangyize@gmail.com, bfmli@hit.edu.cn, ckkishimo@mep.titech.ac.jp Keywords: Flexural wave, Localization, Band gap materials, Random disorder, Axial load Abstract.
Introduction In recent years, there is a lot of attention on the study of wave propagation in periodic composite materials which are also called the band gap materials [1,2].
With this characteristic, the band gap materials have many potential applications such as the acoustic transducers and filters and the vibration isolation technology.
As a result, there is a growing interest on the band gap materials with both theoretical and experimental investigations [3–6].
It should be noted that in the practical applications, due to the error in the manufacture, the random disorders cannot be avoided and the band gap materials become the randomly disordered system.

The reverse kinetic problem is solved in the temperatures range of the chemical–technological process for roasting phosphate raw materials on conveyor indurating machines.
The achievement of high efficiency of thermal preparation depends on the conditions of the raw materials heating in roasting devices [4].
The second: the values of the pre-exponent and the type of the function f(n) are determined for materials with homogeneous in shape and form reacting inclusions or their effective values, when it is impossible to set structural parameters.
Meshalkin, Multicriterial optimization of the energy efficiency of the thermal preparation of raw materials, Theoretical Foundations of Chemical Engineering, 49(6) (2015) 842-846
Springer Textbooks in Earth Sciences, Geography and Environment.

Because of its excellent optical properties , Y2O2S is still irreplaceable red light-emitting materials .
Chem.B, 2002, 106:7177—7185 [4] BAI Zhao-Hui1 RI Su-Hyon1,2 ZHANG Xi-Yan*,1 LU Li-Ping1 LIU Quan-Sheng1 MI Xiao-Yun1(1School of Materials Science and Engineering,Changchun University of Science and Technology,Changchun 130022,China)(2Department of Physics,University of Science,DPR of Korea).
[5] HAN Pengde,ZHU Yiqing,ZHANG Le,CHEN Yan,WANG Lixi,ZHANG Qitu(College of Materials Science and Engineering,Nanjing University of Technology,Nanjing 210009,China).
Preparation and Properties of Upconversion Luminescent Materials of Y2O2S:Yb,Ho, Journal of the Chinese Ceramic Society, July,2012
Journal of Materials Science & Technology,, July,2012 [13] Lü Dong,WANG Wei & MIAO Chen * State Key Laboratory of Cotton Biology,Key Laboratory of Plant Stress Biology,Henan University,Kaifeng 475004,China.

Electrochemical performance of anode materials for lithium-ion power batteries WanHong Zhang1,2,a, KunPeng Wang1,b 1 School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China 2 Collaborative Innovation Center of Nonferrous Metals, Henan Province, Luoyang 471023, China azhangwh@haust.edu.cn, bwangkp@haust.edu.cn Keywords: lithium-ion power battery; anode material; modification; electrochemical property; cyclic voltammetry Abstract.
As an important part of lithium ion batteries, the anode materials play an important role in the performance of lithium ion power battery.
At present, the study of carbon anode materials is one of the most active areas of research for lithium ion battery[8,9].
In the present work, the anode materials were prepared by several typical modified processing method, and the electrochemical performance of Li-ion batteries with different anode materials were tested and analysed, by using cyclic voltammetry method, and the anode materials suitable to power battery was optimized. 1 Experimental 1.1 Experiment Principle Cyclic voltammetry or CV is a type of potentiodynamic electrochemical measurement.
Fergus: Journal of Power Sources Vol. 195(4) (2010), p. 939 [3] E.

P.T.Tsilingiris. [12] performed thin-walled cellular polycarbonate materials in the form of transparent structure being employed as collector materials and found Ethylene – propylene– dyne –monomer (EPDM) materials are suitable for the production of flexible tubes.
Materials and Methods A.
The maximum collector efficiency was obtained at 13.00 hour for the three different materials.
“Flow design and collector performance of a natural circulation solar water heater”, Journal of Engineering and Applied sciences 1(1) pp.7- 13
Reddy Rajeev.,2012, “Experimental Investigation of a New Solar Flat Plate Collector” Research Journal of Engineering Sciences, Vol.1(4) , pp.1-8

The raw materials of this work are FGD gypsum, Sludge (SL), fly ash, diatomite and waste glass.
The chemical composition of raw materials as equivalent oxides is given in Table 1.
Dewatered raw materials were blended with each other in a ball grinder with alumina balls for 120 min.
Thomas: Porous Media and Its Applications in Science (2010) , p.1254 [2] R.
Silva: Journal of Materials Chemistry Vol.18 (2008), p. 4985-4993 [3] P.

All the materials were shattered by impact pulveriser (FZ102 Shanghai Thurlab.
Characters of Carrier materials.
All materials were dried in an oven at 75 to constant weight.
Shi: Journal of Nucelear Agricutural Sciences.
Alloway: The Journal of Agricultural Science.

Engineering data which includes the materials for chassis was assigned.
Specification of the materials used for simulation are tabulated in Table 1 and 2.
Kanagaraj, Modal Analysis of Chassis Using CAE Prediction, International Journal of Science Technology & Engineering. 7(11) (2021) 40-43. https://ijste.org/Article.php?
Vishwakarma, Design & Analysis of Truck Chassis Frame using CAE Tools, International Research Journal of Modernization in Engineering Technology and Science. 3(9) (2021) 756-761.
Chang, Development of a CAD/CAE/CAM system for a robot manipulator, Journal of Materials Processing Technology. 140 (2003) 100–104. https://doi.org/ 10.1016/S0924-0136(03)00695-2 [9] H.

Operation Regime in a Building and its Impact on Construction Materials.
Table 1 shows comparative data of the thermal conductivity of materials in dry and wet conditions.
Table 1 Thermal technical characteristics of construction materials and products.
, which leads to an increase in thermal losses from 15% to 60%, depending on the properties of the materials.
Abbas and Hayder Jawad Kadhim, Experimental study of atmospheric water collection powered by solar energy using the Peltier effect, Materials Science and Engineering 671 (2020) 1-10.

One of the materials commonly used is ABS (Acrylonitrile Butadiene Styrene).
Makara Journal of Science, 24(4), (2020). https://doi.org/10.7454/mss.v24i4.1014 [5].
Journal of Materials Research and Technology, 8(1), (2019), 105–111. https://doi.org/10.1016/j.jmrt.2017.10.007 [6].
IOP Conference Series: Materials Science and Engineering, 269(1), (2017). https://doi.org/10.1088/1757-899X/269/1/012060 [11].
In Materials Science and Engineering an Introduction (Vol. 1) (2010)