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At present, methane catalytic combustion materials mainly concentrate on three kinds of catalysts including noble metal, supported metal oxide and composite metal oxide.
Compared to noble metal catalysts, perovskite-type catalytic materials have attracted considerable interest for many years due to their activity and thermal stability in the catalytic total oxidation of hydrocarbons and are considered as potentially significant [5].
Results and discussion X-ray diffraction analysis Fig. 1 shows the typical X-ray diffractogram for each sample of materials.
Kaliaguine: submitted to Journal of Microporous and Mesoporous Materials (2002)
Bashir: submitted to Journal of Solid State Sciences (2010)

Meek: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing.
Yan: Journal of Iron and Steel Research.
Li: Journal of University of Science and Technology Beijing.
Song: Journal of Hubei Polytechnic University.
Chen: Journal of South China University of Technology (Natural Science Edition).

Among them, natural polymer materials have been attached great attention.
Experimental Materials.
Journal of Colloid and Interface Science, 2003, 264: 30-38
Journal of Colloid and Interface Science, 2013, 410: 52-58
Journal of Hazardous Materials, 2008, 155: 253-260

High Temperature Oxidation of the Hot Rolled Zrnbmoge Alloy for Fuel Cladding Material of Pressurized Water Reactor Bandriyana1,a), A.K.
Dimyati1) 1Center for Science and Technology of Advanced Material, BATAN, Indonesia 2Center of Science and Applied Nuclear Technology, BATAN a)Email: bandri@batan.go.id Keywords: zirconium alloy, hot rolling, cladding, oxidation, PWR.
Based in the the fuel claddings which main function to prevent any leakage of radioactive materials into the coolant, their structural integrity under normal and accident condition have to grant the safety.
Jeong, Corrosion behavior and oxide properties of Zr-1.1wt%Nb-0.05wt%Cu alloy, Journal of Nuclear Materials. 359 (2006) 59-68
Fajar, Ismoyo A.H., Bandriyana, Neutron diffraction technique on the structural identification of ZrNbMoGe alloy, Proceedings of The International Conference on Materials Science and Technology (2011) 91-97

Journal of Crystal Growth, 2000. 210(4): p. 613-622
Journal of Applied Physics, 1966. 37(10): p. 3682-3686
Materials Science Forum, 2000. 338-342: p. 379-382
Journal of Crystal Growth, 2017. 468: p. 883-888
Journal of Crystal Growth, 1999. 198-199: p. 1011-1014.

These materials are usually used in the manufacture of basic moulds using a micro-milling process.
Sen, Matrix elasticity regulates mesenchymal stem cell chemotaxis, Journal of Cell Science, 131 (2018) 1–13
Wu, The application of micro-milling technology in the processing of micro-strip antenna, International Journal of Materials and Product Technology, 51 (2015) 44–59
Choong et al., The global rise of 3D printing during the COVID-19 pandemic, Nature Reviews Materials, 5 (2020) 637–639
Bandyopadhyay, Bone tissue engineering using 3D printing, Materials Today, 16 (2013) 496–504

According to application of thermal insulation materials in the practical construction of electrical heat tracing in viscous oil pipeline, impact factors of rigid polyurethane foam widely used as new insulation material are systemically analyzed by Grey Relational Analysis (GRA) in the theory of Grey System to find out priorities among those factors.
So it is an urgent problem for us to explore good insulation materials in construction of oil pipelines.
Although the one-time investment is higher than ordinary materials (such as rock wool, vermiculite, slag asbestos, etc.), comprehensively considering the energy-saving, lifespan, compression, anti-aging, anticorrosion, heat resistant, water soaked and waterproof, it looks more economical than others.
[3] Liu Si-feng, Dang Yao-guo, Fang Zhi-geng, et al: The theory of grey system and its application (Science Press, China 2010), p. 62 (In Chinese)
[6] Guan Xiao-ke, Wu Ke-ning, Wang Xiu, et al: Journal of Safety and Environment, Vol. 8 (2008), p. 105 (In Chinese)

Jackson: ASME Journal of Manufacturing Science and Engineering, Vol. 120 (1998), p.84
Malkin: Transactions of the ASME: Journal of Manufacturing Science and Engineering, Vol. 123 (2001), p.13
Xu: Materials Science Forum, Vols. 471-472 (2004), p.625
Xu: Key Engineering Materials, Vols.304-305 (2006), p.19
Mechnik: Soviet Journal of Superhard Materials (English Translation of Sverkhtverdye Materialy), Vol. 6 (1984), p.35.

The material requirement schedule for the basic MRP II and proposed models are compared.
Australian Journal of Basic and Applied Sciences Research, 2009. 3(2): p. 342-351
Management Science, 2001. 47(1): p. 37-51
Journal of Applied Sciences, 2009. 9(1): p. 69-78
International Journal of the Physical Sciences, 2010. 5(6): p. 814-825.

Materials and Methods Selection of Samples 3 Cedrus deodara plants of different site conditions and different ages were selected respectively.
Ding (1983) Slice the material handling method of wood [J].
Application Foundation and Engineering Science Journal 2(2):267-276 [4] T.
Journal of Sun Yat-sen University 2:84-90 [5] T.
Shen (1991) Wood science (Edition 2).