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For the purposes of verification of analysis results, on the basis of geometrical and material properties of the considered system, the value of reduced mass MZ was calculated.
In the carried out research the value of mass MZ was calculated on the basis of geometrical measurements and catalogue material densities, which is another source of errors.
Journal of Nonlinear Mechanics 39 (2004), p. 1721
Luk: ASME Journal of Vibration and Acoustics 127 (2005), p.483
K.: ASCE Journal of Engineering Mechanics Division 102 (1976), p. 249.

These properties make graphene an excellent material for next generation high speed, flexible, extremely thin and light weighed nano-transistors.
With continuous scaling of the CMOS, it has become essential to use metals as gate material instead of polysilicon.
Champlain, "A first principles theoretical examination of graphene-based field effect transistors," Journal of Applied Physics, vol. 109, pp. 084515-084515-19, 2011
Mengke, "Thermal annealing of exfoliated graphene," Journal of Nanomaterials, vol. 2013, p. 11, 2013
Yang, et al., "Large-area synthesis of high-quality and uniform graphene films on copper foils," Science, vol. 324, pp. 1312-4, Jun 5 2009

Glass-ceramic phosphors are well-known and promising as solid electrolytes, laser, luminescent and other inorganic materials.
Lanthanide-doped phosphors are paid particularly much more attention, since their merit of a large Stokes shift, a long life time, sharp fluorescence in comparison with traditional materials.
In particular, molybdates doped with lanthanides include a large class of inorganic functional materials that demonstrate wide physical properties.
The starting materials for molybdates are reagents Na2CO3 (AR grade), MgO (AR grade), Sc2O3 (99.99%), and MoO3 (AR grade).
Buddhudu, Spectral analysis of Eu3+ and Tb3+:B2O3–ZnO–PbO glasses, Materials Chemistry and Physics 102 (2007) 181-186

Ultra-high performance concrete (UHPC) incorporating coarse aggregate was prepared with common raw materials.
Experimental details General UHPC was prepared with normal materials and ordinary technology.
Australian Journal of Civil Engineering, Vol. 2, pp. 13-20, 2005
[6] Wang, C.; Yang, C.H.; Liu, F.; Wan, Z.J.; Pu, X.C.: Preparation of Ultra-High Performance Concrete with common technology and materials.
[9] Zhang, M.H.; Tam, C.T.; Leow, M.P.: Effect of Water-Cementitious Materials Ratio and Silica Fume on the Autogenous Shrinkage of Concrete.

Morphological Analysis The base material is Ti-6Al-4V (TC4) plate.
Coating materials are ZrO2 (containing about 7.5% Y2O3) and HA, both of them are mechanically mixed at a mass ratio of HA (70 wt.%) and ZrO2 (30 wt.%),and then sprayed to the samples by DH1080 plasma spraying equipment, with coating thicknesses 0.2mm.
Some coating materials are taken away as the asperity peaks breaks, causing the coating material peeling off microscopically and cracks at the same time.The destruction of the texture morphology is caused, as shown in Fig. 5 (d).
Acknowledgements The authors would like to acknowledge the Project LQY18E050001 supported by Natural Science Foundation of Zhejiang Province, China.
Chinese Journal of Lasers, 2014, 41(10):68-73.

That means this technique is very useful to identify material characterization, especially to control the quality and originality of the product or material.
Materials and Method Experimental.
Table 1 Basic material composition ratio of the concrete sample [3] Material wt(%) Portland cement 13.24 Fine aggregate (sand) 26.49 Coarse aggregate Fresh water 52.98 7.28 Simulation.
Linstrom, Prompt gamma-ray activation analysis: Fundamentals and applications, Journal of Radiaoanalytical and Nuclear Chemistry 243(1) (2000) 181-189
Sato, Shileding evaluation for solar particle events using MCNPX, PHITS and OLTARIS codes, Life Sciences in Space Research 4 (2015) 79-91.

Chekanin, A.V.Chekanin Implementation of packing methods for the orthogonal packing problems, Journal of Theoretical and Applied Information Technology 88 (2016) 421-430 [5] A.V.
Sobolev The analytical model for calculating the contact stiffness of the double-based toolholder, Materials Today: Proceedings.
Series: Materials Science and Engineering 971 (2020) 042044 [7] L.G.
Vainer The regularities of allowance removal in grinding ends of cylindrical rollers, Materials Today: Proceedings.International Conference on Modern Trends in Manufacturing Technologies and Equipment, ICMTMTE 2019 (2019) 2535-2539

Using ANSYS finite element analysis software, this paper established the axisymmetric section of the W-type metallic sealing ring finite element model, using the MOGA optimization algorithm (multi-objective genetic algorithm) to optimize the structure parameters of W-type metallic sealing ring.  1 The materials of metallic sealing ring We choose nickel-based superalloy GH4169 as the material of sealing ring[3,4], working temperature can reach to 650 ℃. 
Under high temperature, the strength of the material is still very good, its oxidation resistance, fatigue, fracture toughness, plastic and other comprehensive performance are very good also, the basic mechanical properties parameters are shown in Table 1[5].
Table 1 Material mechanics parameter property Temperature/℃ Tensile strength/MPa Yield strength /MPa modulus /GPa Thermal conductivity Coefficient of linear expansion Poisson's ratio 20 1270 1030 203 ／ ／ 0.321 650 1055 865 142 21.2 14.8 0.361 2 The determine of the optimal parameters In this paper,  the model of W-type metallic sealing ring is given, inner diameter R1 = 371.48mm, outside diameter R2 = 376.01 mm, axial length L = 4.53mm, the ring wall’s thickness t = 0.25 mm.
Damage Tolerance of Alloy Turbine Disc Material.
Journal of nanchang aviation university., Natural science edition: 27 (2).

Based on a silicon-on-insulator (Silicon-on-insulator, SOI) material system design and optimization of a high performance, the polarization independent of 1 × 3 subwavelength grating stars beam splitter.
Similarly,for the TM polarization,it can also get the back diffraction efficiency and the forward diffraction efficiency respectively: , (12) 2.2 Structure design This paper based on the single tooth grating as an example,design a 1 × 3 grating beam splitter.The device is based on the multi-layer dielectric film structure of SOI material system ,the grating is placed on the top silicon layer.
A bunch of plane monochromatic vertical irradiate on the structure,through the grating,incident TE and TM polarized light is divided equally between 0 and ± 1-order transmitted diffraction orders.Paper assume that grating in the y direction is infinite,dielectric material of the composition grating is lossless,and the dispersion of the material is also negligible, design and optimization the device by rigorous coupled-wave analysis method.
(a) TE polarized angle response lines (b) TE polarized angle response lines Figure 3 1.55μm at the angle of the device response spectrum 3 Conclusion Based on the SOI material system performance, the polarization-independent 1 × 3 subwavelength grating beam splitter, in the 1550nm wavelength range, at vertical incidence,the device can achieve power splitting for the TE and TM polarized light at the same time.The device is only need a layer of simple subwavelength grating,which makes it easy to integrate with other devices within a relatively wide band range.The grating beam splitter can be widely used in communication systems routing and switching devices. 4 Acknowledgement This work is supported by Natural Science Foundation of Jiangxi Province No.20122BAB201026 5 References [1].
Magnusson, “New nonpolarizing resonant beam splitters,” IEEE Photonics Journal 2, 670–676 (2010)

Therefore, under the call for and support of the government, many energy industrial sectors and research and education institutes devoted a plant of manpower and materials to research and practice CBM development and control.
Table 1 Strength of commonly used casing, cement mantle and coal material Spec.
POPULAR SCIENCE & TECHNOLOGY. 2006, (5): 37(In Chinese)
EARTH SCIENCE -JOURNAL OF CHINA UNIVERSITY OF GEOSCIENCES. 1994, 19(4): 537-545(In Chinese)
EARTH SCIENCE -JOURNAL OF CHINA UNIVERSITY OF GEOSCIENCES. 1995, 20(1): 112-116(In Chinese)