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The buckling and anti-collapse performance targets are set as follows: (1) The stability load-bearing capacity coefficient K of the overall steel structure is bigger than 4.2 taking into account material elasticity and geometrical non-linearity(sigle NL); The K of the overall steel structure is bigger than 2.0 taking into account material plasticity and geometrical non-linearity(double NL); (2) The ratio u/L between the vertical displacement and the span of the bending instability of overall steel structure is not bigger than 1/100 and the large cantilever structure not bigger than 1/50 taking into account double NL; (3) The structure will not collapse when some key components lose effectiveness.
Given the different anti-stretching and anti-stress capabilities of concrete materials, the constitutive relation shown in Figure 8 is adopted, and the reinforced concrete poles are simulated with the plastic hinge model.
Taking into account the initial deficiency, geometrical nonlinearity and material nonlinearity (double NL)， the ideal elastic-plastic model is adopted for the steel structure, and the structure is damaged when 2.6 times of the load is reached(shown in Figure 14).
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Tab.1 Basic size the oil pipeline in DN and ASME (Inner pressure 5000psi，material grade X65） DN Inner diameter / inch Outside diameter / inch Wall thickness / inch NPS / inch 200 7.625 8.625 0.5 8 250 9.5 10.75 0.625 10 300 11.374 12.75 0.688 12 350 12.5 14 0.75 14 400 14.25 16 0.875 16 450 16.124 18 0.938 18 500 17.876 20 1.062 20 According to the Fig.2 and Fig.3[5], calculating process of the specification parameter of the 8inch lenticular gasket is as follows： (1) Calculations of d2, d5, x Inner diameter of an 8inch flange : di=409.5mm Wall thickness: t=23.8mm d2 =565mm d5 =530mm x=48mm PS: d2, d5, x is ensured by the proportional relation of the correspond value of inner diameter of the standard flanges.
During the butt jointing of pipelines, the gaskets are interchangeable parts, and flanges are reusable parts, so the material of flanges should be harder than the gaskets to guarantee the soft one can reach the yield limit and avoid the excessive deformation of flange seal surface.
In the seal material of contact surfaces, the gasket is made by soft material, so the Rc value should be assigned as yield strength(205 Mpa) of stainless steel 316.
Acknowledgment The study was supported by the National Natural Science Funds of China (51105088).
Journal of Astronautics.

In this work, we use graphene as base material, AuPd nanoparticles are electrodeposited on the surface of graphene by a co-deposition method from a mixture of HAuCl4 and HPdCl4 to parepared the AuPd/GR/GCE.
Acknowledgment The authors acknowledge the financial support from the National Natural Science Foundation of China (21075096, 21275113).
Li, Advanced Materials 23 (2011) 1044
Kuang, Journal of Materials Chemistry 22 (2012) 1781.

Experiment Materials Polypyrrole synthesis In the polymerization process of polypyrrole, these chemicals were used: pyrrole (Fluka) as a monomer, ammoniumpersulfate (MERCK) as an oxidant, 5-sulfosalicylic acid (Fluka) as a dopant.
In order to the diffusion coefficients are calculated from Higuchi's equation [5]: ( ) 2/1 0 /2 πDtCQ = (1) where Q is the amount of material flowing through a unit cross-section of barrier in unit time, C0 is the initial drug concentration in the hydrogel, D is the diffusion coefficient of a drug and the release time.
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Jiang: Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing Vol. 438 (2006), p. 999 [5] B.
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Material and Methods Material Strain Used for Testing.
Acknowledgement This study was supported by youth Scientific Reseach Fundation of Central South University of Forestry and Technology(2009001A);Hunan Provincial Science and Technology Major Project (2011FJ1006).
Bamboo fiber - a new textile material[J].China Textile Leader, 2003, 3: 59-60
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Furthermore, the addition of small amounts of Al and Si constituents to the nanocomposite structure of these materials considerably improved their tribological and anti-corrosive properties at operating temperatures exceeding 400 °C, such as hardness and wear resistance, thermal stability and denitrification temperatures [4].
The NSC film-samples showed foremost a positive skin effect up to a penetration depth of about 500 nm while bulk steel substrate in the same indentation depth-range of 12 – 500 nm demonstrated convincingly a negative skin effect or normal indentation size effect (ISE) that is characteristic for bulk material samples.
Acknowledgements This research is funded by the Latvian Council of Science, project No. 2019/1-0385 “Carbon-rich self-healing multifunctional nanostructured smart coatings (NSC) for high-tech applications using high-power confined plasma technology for their deposition”.
Bajajb, A critical review of diamond like carbon coating for wear resistance applications, International Journal of Refractory Metals & Hard Materials. 78 (2019)107-122

Muller, Efficient backprop in Neural Networks, Tricks of the Trade, Springer Lecture Notes in Computer Sciences 1524 (1998) 5-50
Židek, E, Rigasová, Diagnostics of Products by Vision System, Applied Mechanics and Materials 308 (2013) 33-38
Zaidi, Visual inferences of material changes: color as clue and distraction, WileyInterdiscip Rev Cogn Sci.2/6 (2011) 686–700
Mižáková, Electro-pneumatic robot actuator with artificial muscles and state feedback, Applied Mechanics and Materials 460 (2014) 23–31
Židek, Model-based evolution of a fast hybrid fuzzy adaptive controller for a pneumatic muscle actuator, International Journal of Advanced Robotic Systems 9/56 (2012) 1–11

Fig. 1 The Yangtze River Basin, China 3 Methods and Materials 3.1 Data sources The database used in this study was connected to attribute databases of the Yangtze River Basin’s geographic vector graphics using Arc GIS software.
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., 13, Yokota 8, Goichi, Mihama-cho, Mikata-gun, Fukui, 919-1205, JAPAN 3 Kobe Material Testing Laboratory Co., Ltd., 1007-1, Tome-cho, Hitachi-city, Ibaraki, 319-1231, Japan a maekawa@inss.co.jp, boumaya.toru@c2.kepco.co.jp, cnoda@inss.co.jp, d stakahashi@inss.co.jp, et-saito@kmtl.co.jp Keywords: Austenitic stainless steel pipe, Butt-welded joint, Residual stress distribution, Neutron diffraction technique, Finite element method.
Acknowledgement Residual stress measurements by the neutron diffraction technique were conducted under the trial use program of the Radiation Application Development Association (RADA) under the sponsorship of the Ministry of Education, Culture, Sports, Science and Technology in 2007 and 2008.
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Wang: Single Crystal Elastic Constants and Calculated Aggregate Properties, MIT Press, Cambridge, MA (1971) [6] The American Society of Mechanical Engineers (ASME): ASME Boiler and Pressure Vessel Code, Section II, Part D - Properties, ASME, New York, NY (2004) [7] ABAQUS Version 6.8, Dassault Systèmes Simulia Corp., Providence, RI, USA [8] ISO/TTA 3: Polycrystalline Materials - Determinations of Residual Stresses by �eutron Diffraction, ISO, Geneva, Switzerland (2001) [9] S.
Murakawa: Quarterly Journal of the Japan Welding Society, Vol.27, No.2 (2009) p.240s