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Mathematical Modeling of the Process of Reduction of the Material Consumption of Gas Transmission System Elements Narine Pirumyan1,a*, Mihran Stakyan1,b and Hmayak Khazaryan2,c 1National University of Architecture and Construction of Armenia, 105 Teryan Street, Yerevan, Republic of Armenia 2"Gazprom Armenia" CJSC, Tbilisyan Highway, 43, Yerevan, Republic of Armenia a*pirumyannarine@gmail.com, bstakyan.mihran@yandex.ru, chmayakkhazaryan@yahoo.com Keywords: Structural materials, Gas transmission system, Corrosion fatigue, Corrosion coefficient, Surface hardening, Anti-corrosion coating, Material consumption, Material defects, Low-carbon and low-alloy structural steels.
Steklov, Resistance of materials and structures to stress corrosion, Mashinostroenie, Moscow, 1990
Chibukhchyan, M.G.Stakyan O.S.Chibukhchyan, Improving the Carrying Capacity of Structural Elements of Vehicles by the Corrosive Strength Criterion, Journal of Machinery Manufacture and Reliability, 48(6) (2019) 551-556
Stakyan, G.Galstyan, Mathematical modeling of the test process of construction materials, Key Engineering Materials. 828 (2019) 115–120
Galstyan, Software processing of the test results of building materials, Key Engineering Materials. 828 (2019) 121-128

Acknowledgements The research work is supported by the National Science Foundation of China (No.10902004).
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Materials and methods Sample preparation The experimental material consisted of grass carp (GC) and crisp grass carp at different crisping time (30d, 50d, 70d, 90d and 120d) and above samples were named as CGC1-CGC5, respectively.
There were much more interstitial materials (tissues) among intermyofibrils in CGC (Fig. 2B, 2C) than in GC (Fig. 2A).
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These results will provide some useful guides for the dynamic energy absorption design of cellular materials.
Topology sensitivity is a distinct characteristic of cellular materials.
The results will provide some useful guides for the dynamic energy absorption design of cellular materials.
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Commercial products are mainly using ZnS due to the other two materials are easy to deliquesce.
The colors of these competitive materials are more vivid and bright, and their prices are continuously to drop down.
Acknowledgements This work is financially supported by the National Science Council.
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During the last decade an increasing number of researchers focused on materials that have at least one dimension in the nano scale range.
That one dimension has immense impact on the physical and chemical properties of the materials, which is mainly due to the large surface to volume ratio.
Introduction Nano materials exhibit interesting behavior when compared to bulk analogue materials.
Nobumitsu Hirai, Akiko Shiraki, and Shigeta Hara, “In situ atomic force microscopy observation on the decay of small islands on Au single crystal in acid solution,” Journal of Vacuum Science & Technology B, vol. 18, no. 7, 2000
Nobumitsu Hirai, Toshihiro Tanaka, Shigeta Hara, “Decay of nano-islands on the surface of a Au(111) electrode in contact with sulfuric acid solution,” Science and Technology of Advanced Materials 5, pp. 115–118, 2003

Kheirandish, Effect of inoculation and casting modulus on the microstructure and mechanical properties of ductile NI-resist cast iron, Materials Science and Engineering: A 651 (2016) 467–73
Oridota, Effect of Magnesium and Calcium as Spheroidizers on the Graphite Morphology in Ductile Cast Iron, Journal of Minerals & Materials Characterization & Engineering 6(1) (2007) 25-37
Jørgensen, Mechanisms of graphite formation in ductile cast iron containing rare earth metals, Materials Science and Technology 15(3) (1999) 253-259
Orhan, Effect of graphite shape in vacuum-free diffusion bonding of nodular cast iron with gray cast iron, Journal of Materials Processing Technology 141 (2003) 228–233
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Research Development in Synthesis Methods of Silver Nanowires Bi Tao Liu1,a, Liang-sheng Ge1,2,b, Jia-fu Xu1,2,c, Rong Jin1,d*, Liu Yang1,e and Ming-jing Tu1,f 1Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan Chongqing 402160, China 2Institute of Materials and Chemica, Chongqing University of Arts and Sciences, Yongchuan Chongqing 402160, China aXCLLiu@sina.com, bglsmly@sina.com, cxjfmly@sina.com, drong516112@sian.com, exclyl007@sian.com, ftmjxcl@sina.com Keywords: Silver nanowires, Synthesis method, Applicaton Abstract.
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Materials and Method Pr0.85Na0.25MnO3 has been prepared via sol-gel method to produce nano-particles at a significantly lower sintering temperature as compared to conventional solid-state method.
Patil, Role of grain size on the magnetic properties of La0.7Sr0.3MnO3, Journal of Magnetism and Magnetic Materials 328 (2013) 86–90
Sun, Particle size effects on La0.7Ca0.3MnO3: size-induced changes of magnetic phase transition order and magnetocaloric study, Journal of Magnetism and Magnetic Materials 322 (2010) 2360–2368
Dua, The effect of Ru doping on the alkali-doped manganite Pr0.8Na0.2MnO3, Journal of Magnetism and Magnetic Materials 322 (2010) 3857–3861
Huang, Influence of molar ratio of citric acid to metal ions on preparation of La0.67Sr0.33MnO3 materials via polymerizable complex process, Journal of the European Ceramic Society 25 (2005) 3611–3618.