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By knowing the stress history of the track and the S–N curves of the track material, the remaining life of the railway track can be predicted.
Journal of Structural Geology, 29(1), January (2007), p.129–140
Putra: The Effect of DIC Parameters in the Measurement of KI and KII, Journal of Mechanical Engineering, Vol. 10 No. 1, 2013
Measurement Science and Technology, Meas.Sci.

Materials and Method A.
The development of current and future photovoltaic (PV) technology, particularly for implementation on canopy roofs or integrated into buildings, includes bifacial solar panels, especially those using perovskite materials.
Integrating perovskite materials into bifacial designs not only boosts efficiency but also enhances durability, as these cells have shown resistance to environmental degradation [38], [44].
Their ability to harness light from multiple angles, combined with the inherent advantages of perovskite materials, positions them as a competitive alternative to traditional solar technologies.
Yan, “Perovskite Solar Cells Go Bifacial—Mutual Benefits for Efficiency and Durability,” Advanced Materials: Volume 34, Issue 4 January 27, 2022, vol. 34, no. 4, Jan. 2022

Therefore the aim of this research is to study the population of this species in remote parts of Pennsylvania (USA) and Kostroma region (Russia) Object, materials and methods The studies were conducted during the operational season of 2013.
Acknowledgements This research is conducted with the financial support of Ministry of Education and Science of Russia as a part of a state research, and partial support of Fullbright fund of Ukraine.
Ontogenesis and structure of populations of some species of sporophytes Botrychium Sw. in southern taiga subzone and subtaygi European Russia // Dissertation for the degree of candidate of biological sciences. - Barnaul, 2004. - 148 p
Comparative characteristics of the ontogenesis of some rare representatives of the family Botrychiaceae Nakai // Biological Gazette: Scientific theory journal. - Kharkov, 2008. - T12. - № 1. - P.72 -77 [5] Krinitsyn I.G.Polivariety of ontogenesis sporophyte Botrychium lunaria (L.)
The ferns of the family Ophioglossaceae in Kіev, Ukraine // II International Scientific and Practical Conference "Young researchers - botanical science 2009" / Editorial board: N.M.

At present, some colleges and universities open the computer course, but almost no involves network security education; therefore, universities should add network security classes, and ensure that from teachers, funds, materials, lectures, etc .
Journal of Nanjing Institute of Technology, 2010 (1) [4] Lv Lintao .Network information security technology [M].
Beijing: Science Press, 2010 [5] Dawei.
Journal of Dehong Teachers College, 2011,20 (2): 95-96 [7] Mu Yang.
Heilongjiang science and technology information, 2011,30:98 [8] Zhu Tong.

The research of biological ultra-weak photon emission in our country is a little late, but we still have some preliminary experimental and useful research in the field of food science, botany, zoology, medical science, and molecules, etc.
Photocathode use low-noise dual alkali material, its diameter is 5 nm, the window material is UV mirror.
Journal of Scientific Instrument, 31(20102)312-316
Photonic Journal, 28(1999)1057-1060
Food Science, 26(2005) 539-541.

Electrokinetic techniques for removing heavy metals from municipal sludge technical level, but research still remain in the existing form and the pH value, the voltage gradient, additives and strengthen technical factors such as heavy metal heavy metal removal efficiency for deeper principle, the nature of the sludge concentration polarization process, heavy metal migration characteristics cathode region of high concentrations of heavy metals in sludge subsequent processing and operating costs and other issues are still in a blank state, these areas remains to be further research. 2.4 Solidification-Stabilization Method The heavy metals in sewage sludge solidification - stabilization is refers to the use of physical and chemical methods sludge and stabilizing inert material blending together, rely on inert material adsorption, curing effect such as make heavy metal into low solubility and low mobility of steady state and not easily by leaching, so as to achieve the purpose of eliminate
Acknowledgements This work was financially supported by the Major Science and Technology Program for Water Pollution Control and Treatment (2009ZX07212-003).
Journal of Huazhong Agricultural,2002,21(1):36 - 39
Environmental Science & Technology,, 2009, 32(1):143-146
Journal of Applied and Environmental Biology, 2001,7(5): 511 – 515

The University of Waterloo has been a significant contributor to the study of laser welding of Zn-coated materials and the use of gaps and embossed surface features [4-5].
Bethke: DVS Conference ECLAT ’94 – Laser Treatment of Materials.
Graham: Welding Journal Research Supplement, Vol. 75 (1996) No. 5, pp. 162-170
Tzeng: Welding Journal, Research Supplement, Vol. 78 (1999) No. 7, pp. 238-244
Marder: Progress in Materials Science, Vol. 45 (2000), pp. 191-27

This material can also be co-extruded simultaneously with other materials like PVC to achieve both a robust and soft part.
Obtaining the final form is a difficult process and need detailed knowledge of material behaviour, properties, flow phenomena and extensive experience in the field of extrusion of polymeric materials.
Żołnierczyk, Optimization and analysis of porosity and roughness in selective laser melting 316L parts, Archives of Materials Science and Engineering 1/90 (2018) 5-15, DOI: 10.5604/01.3001.0012.0607
Czaja, Surface quality in selective laser melting of metal powders, Archives of Materials Science and Engineering 60/2 (2013) 87-92
Tański, Influence of technological parameters on additive manufacturing steel parts in Selective Laser Sintering, Archives of Materials Science and Engineering 67/2 (2014) 84-92

S=S1+S3-S2-S4=MAbd6E2I2+(F2d33E3I3+F2d2gb3E2I2)-q2b3d24E2I2-(q3d48E3I3+q3d3gb6E2I2) (1) Wherein, S1 is the displacement of the breaking shoe which only takes the forces of AC section into account (exciting force FN, concentrated mass loading F1 and distributed load q1), MA=FN∙a+F1∙a+q∙g∙a2, q1=ρ∙A, ρ is the resonant beam material density, A is the cross sectional area of ​​the beam; S2 is the displacement of the breaking shoe that only considered the forces of AC section(only the distributed load q2); S3 represents breaking shoe displacement that only considered concentrated load F2 in DB segment; S4 represents the breaking shoe displacement only considered the distributional load q3 in DB section.
Its basic material parameters are shown in Table 1.
Table 1 Resonant beam material parameters Elastic Modulus (Pa) Poisson's ratio Density (kg/m3) Yield strength (Pa) 2.1E+11 0.3 7.85E+3 1.37E+9 Make the freedom modal analysis of the resonant beam in ANSYS, the seventh-order natural frequency is 47.0Hz and its modal shape is what we need [11], shown in Fig. 5.
Lv: Shandong Building Materials, (2010) No.3, p.39
Han: Journal of Jiamusi University (Natural Science Edition), Vol. 23 (2005) No.1, p.81

Oxidation Treatment of Phenol Contaminated Soil Using Potassium Ferrate (K2FeO4) GuangMin Liu1, *a, Xin Jia2,b, Fanao Jia3, c Department of Environmental Engineering, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, Heilongjiang Province, 150001, P.
Materials and Methods Materials and Reagents.
Shen, The research on phenol’s hereditary toxicity, China journal of public health. 13(1984) 36-37