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Finite Element Model(FEAM) Three-dimension Finite Element Analysis (3D-FEA) models are built according to the rock mechanical models to analyze the concrete lining seismic responses under different buried depth.
Druck-Prager yield criterion is adopted to simulate the mechanical properties of the surrounding rock [4].
The mechanical parameters of concrete (C40) and surrounding rock are shown in Table 1.
The other factors remain consistent.
Liu, Discussion on several factors affecting seismic responses of underground structures, Geotechnical Engineering World, 2 (2004) 44-46

Binder Latex as binder in the non asbestos gasket, his role is to combine various components, provides the material fluid resistance and compression resilience, gasket is heat resistance, resistance to medium, sealed performance is one of the important factors.After considering I selected the nitrile rubber latex, carboxyl nitrile latex.Nitrile latex or NBR, carboxyl nitrile latex abbreviation XNBRL, they with fiber can be a combination of good performance compared to other latex with heat resistance, oil resistance, abrasion resistance, aging resistance, but its tensile properties is bad.
Table 1 The principle of non asbestos gasket Fiber Packing Binder Cooperate with the agent Aramid Wood pulp Mineral wool Calcined kaolin Talcum powder Mica XNBRL NBR-26 Sulfur Al2(SO4)3 Formula In order to get the required properties of the material, the need to establish a basic formula here, on this basis) to get better performance.Here we used the orthogonal test, the ratio of raw material for the design.Because there are 4 main influential factors on the performance required, so choose the L9 (34) orthogonal test table.Table 2 for the selected factors and levels, the orthogonal test table listed in table 3 and table 4 for the relationship between the factors and levels; Table 2 Test factors and levels The level of A- Fiber /% B- Packing /% C- Binder /% D- Cooperate with the agent /% 1 40 25 13 0.8 2 45 30 15 1.0 3 50 35 17 1.2 Table 3 Orthogonal table The serial number A B C D Creep relaxation rate /% 1 1 1 1 1 36.25 2 1 2 2 2 40.60 3 1 3 3 3 50.63 4 2 1 2 3 37.80
Table 4 The foundation of the non-asbestos gasket materials formula (mass fraction) Fiber Packing Binder Cooperate with the agent 50 25 13 1.2 Summary After experimental research, found on the basis of non asbestos latex copy take gasket packing for non asbestos latex copy of gasket strongest influence of creep, the influence of the binder on the followed, with minimal impact on the agent.In view of this current study alone in here creep properties of the optimal basic formula: fiber is 50%, 25% filler, binder, 13% 1.2% chelating agent.
Mechanical engineering material, on May 31, 2007 (5) [2] Mei-hong liu, Cai Renliang su-jiang xie, Meng Feng have, dong-mei tian.
Mechanical engineering material, in January 2005, 29 (1) [3] Emerging in the summer, ho ngoc ha.

Wan 1, b , D.J.Hu 1, c 1School of Mechanical and Power Engineering, Shanghai Jiaotong University, Shanghai 200030, P.R.
It shows that normalized wear rate is mainly determined by fractal dimension besides the material properties and an optimal fractal dimension existed for the engineering surface is affected by the plastic index, normalized true contact area and scale coefficient.
However, these parameters do not consider the functional properties of the surface, the effect of surface topography change on the frictional behavior of the roller and the steel sheet can be represented by the parameters.
The premise of using fractal is that the surface has fractal properties.
The analysis of the effect of surface topography on the wear rate of the roller with fractal geometry model for wear prediction shows optimal fractal dimension of roller surface is affected by the normalized contact area and scale coefficient and material property, and normalized wear rate is mainly determined by fractal dimension.

The properties of porous hydroxyapatite (HA) produced by heat treatment of bovine femur bone were evaluated over different temperatures between 400ºC and 1200ºC.
The most important parameters that can affect the properties of HA are the temperature and duration of sintering [2].
Bovine bone HA’s stability and physicochemical properties varied depending on different sintering temperatures.
Properties of hydroxyapatite produced by annealing of bovine bone.
Some important factors in the wet precipitation process of hydroxyapatite.

This study aims to evaluate the properties of particleboard made from chemically modified oil palm biomass and to determine the effect of pressing temperature on the properties of the particleboard.
The moisture content in the particleboard differs in each sample due to various factors such as processing parameters and the original moisture content of the raw materials.
This test shows that particleboards made using high temperature have higher mechanical strength properties than particleboards made using a lower temperature.
Ross, "Mechanical Properties of Wood-Based Composite Materials," in Wood handbook—Wood as an engineering material, Forest Product Laboratory, Ed.
Kretschmann, "Mechanical Properties of Wood," in Wood Handbook - Wood as an Engineering Material, F.

The dead zone characteristic of proportional valve is affected by load torque.
Saturation constant is Sa, input is u, output is u’, and the saturation characteristic can be expressed as (5) Low-speed friction properties of the hydraulic motor.
Eq.9 is flow continuity equation, which expressed the relation among input flow, mechanical properties of hydraulic oil and amount of leakage.
China Mechanical Engineering, 2012, 23(2):216-219
CHINESE JOURNAL OF MECHANICAL ENGINEERING, 2007, 43(9):33-39

Research on Mechanical Properties of Reinforced Concrete (RC) Beams for the Corrosion by Sea Water Zhou Xia1，YAN Xi-kang2, 1.Hebei Electric Power Design & Research Institute, Shijiazhuang 050031,China 2.School of Civil Engineering, Hebei University of Technology, Tianjin 300072,China Keywords: reinforced concrete beam； sea water corrosion； bearing capacity； Abstract: By way of the soaking and drying cycle test on the different mix proportions vertical section of 10 pieces of RC beams suffered artificial sea water（ASW） corrosion under0,35,70,105,140 times of dry-wet cycles, the compared result of exerting pressure test of these beams under simply supporting were investigated.
The law about the changes of the mechanical performance for RC beams with different mix proportions under different time periods for suffering corrosion of dry-wet cycles was as follows: The resistibility to ASW corrosion for the concrete specimens with various water cement ratio(various initial strength) are different；The characters of normal section failure for RC beams attacked by sea water are about the same as that for ordinary RC beam； Along with the extension of the time for seawater attack, the bearing capacity for normal section of RC beams varies wave upon wave.
Introduction The RC structures in the wave splash area are easier to be subjected to destroy and the loss is vast[1,2].In this experimental result, the law for the change of mechanical performance of RC beams with different mix proportions under different dry-wet cycle conditions was investigated through artificially imitated sea water corrosion on the in-site casting RC beams especially on the concrete structure in the wave splash area.
These specimens were cured and dried under the same condition as the experimental beams. 2.3 the Procedure for Eroding Experimental Beams According to relevant research result, it is possible to simulate the real eroding situation affected by natural environment with the aid of seawater spraying test.
Corroded Expansion Force of Reinforced Concrete Members and Its Influence Factors.

Twin boundaries act as obstacles for dislocation slip, and thus, further reduce the effective grain size, which affects the fatigue response as well.
The mechanical properties are summarized in the table inset in Fig. 1.
The differences in the mechanical properties of the fine and coarse grained condition are a direct result of dislocation motion on specific slip systems and mechanically-induced twinning.
This is attributed to the high ductility of the coarse grained condition, which is a dominant factor in the LCF regime.
Barbier, High manganese austenitic twinning induced plasticity steels: A review of the microstructure properties relationships, Curr Opin Solid State Mater Sci, 15 (2011) 141-168. [2] G.

The effect of pore-forming hydrophilic additives on the membrane morphology and transport properties was investigated.
Introduction Polyvinylidene fluoride (PVDF) is one of the most extensively applied membrane materials in the ultrfiltration (UF) system due to its outstanding antioxidation activity, excellent chemical resistance and thermal stability, highly organic selectivity, as well as good mechanical and membrane forming properties.
Additives are one of the major factors and play vital role in the formation of membrane structure by enlarging or preventing of macrovoid formation, enhancing pore formation, improving pore interconnectivity and/or introducing hydrophylicity [2-9].
Yuliwati and Ismail [9] found that membrane morphology and transport properties can be modified by additives in the casting solution and polyvinylpyrrolidone improved membrane permeability; LiCl can be used in order to reduce macrovoid formation and increase the mechanical stability of the membranes.
Effect of different additives on the morphology, structure and properties such as permeability, porosity were studied.

This paper mainly introduces the properties of welded joints of supercritical boilers, combined with the actual construction of a power plant, of these new type heat-resistant steel we Ultra supercritical unit; heat resistant steel; weldability al exploration.
Some new heat resistant steel at home is the use of time is very short, on the welding performance they are few, it is blank on the welding joint properties of welded joints, once appear problem, its destructive effects, bad .
experimental materials and methods A new martensitic heat-resistant steel during welding process, it is difficult to fine grain strengthening and dislocation strengthening to improve the properties of welded joints of welding, so there are some differences between the performance and the parent metal joints.
Three factors to produce the crack for the quenched structure, hydrogen and stress.
Fig.3 Welded joints of P92 HAZ TEM a) as welded b) PWHT 1.4 Analysis of mechanical properties of welded joint of new martensitic Introduction T/P91, T/P92（NF616）, E911, T/P122（HCM12A）The higher content of alloy elements welded joints, these alloy elements with solid solution strengthening and precipitation strengthening effect, the mechanical properties of the welding joint level.