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Introduction Over the last few years, more and more attention has been paid to the development of mathematical models that predict the final microstructure of a product based on the processing conditions, in order to optimize the different variables and achieve the best combination of strength-toughness properties in as-rolled materials.
N(t) represents the instantaneous precipitate number density and Nc(t) the number of dislocation nodes which is calculated as follows: 5.1 )(5.0)( ttNc ρ= with 2 )( )(       − = p T y f bM t t µα σσ ρ Eq. 3 The constant fp is a "dislocation density factor" [6] to fit the observed data and predictions, since the exact value for flow stress is not always available for each specific case and/or not all the dislocation nodes can be active in terms of precipitate nucleation; this factor is used to adjust ρ(t).
The interface energy, γ, strongly affects the critical nucleus size (RC = -2γ /∆GV).
Prior to the analysis of the stress-relaxation curves with the model, it must be taken into consideration the fact that the observed strength evolution is given in part by the contribution of the different softening and hardening mechanisms affecting the microstructure, but the other part comes from a test contribution related to the conversion of elastic into inelastic strain which can introduce a significant stress relax.
Finally the mechanical softening and recrystallized fraction evolution calculated with the model at 1015 and 1060ºC are represented in Fig. 3, together with the experimental softening fraction derived from the relaxation curves of Fig. 1(a) following the usual procedure [15, 17].

Because each particle had such attributes as the shape, the size, the color, the transparency, the movement speed, the movement direction and the life-cycle properties, these particles were constantly in motion as time goes by and its properties were also constantly changing, with the new particles generating continually and the old particles dying constantly.
Each droplet had such attributes as the velocity, the acceleration, the position and other various physical properties, so the dynamic effects of spraying could be simulated by the particle system for calculating theses properties of oil droplet particles.
Especially the transient area could be ignored in the dynamic simulation in general, but it did not affect the eventual effect of charged oil atomization.
Since it is a simplified mathematical model, such factors as the oil temperature, the oil flow rate, the jet velocity, the droplets interactions among particles and the non uniform electric field distribution are not considered.
Wen: Chinese Journal of Mechanical Engineering, Vol. 38(2002), p. 37-40

The results showed that the compressed-air assisted technique demonstrated better results in terms of mechanical properties.
Aydın, Effects of micro particle reinforcement on mechanical properties of 3D printed parts, Rapid Prototyp.
Arivazhagan, Dynamic Mechanical Properties of Fused Deposition Modelling Processed Polyphenylsulfone Material, Am.
Sbarski, Thermo-mechanical properties of a highly filled polymeric composites for Fused Deposition Modeling, Mater.
Osswald, Nozzle clogging factors during fused filament fabrication of spherical particle filled polymers, Addit.

Introduction Exergy is a thermodynamic property associated with the state of the system and environment [1].
The mass flow rate and the temperatures which are important factors in evaluating the stream's exergy are totally affected by the syngas fuel compositions and combustion characteristics.
This is might be due to the increase in the mass flow rate of flue gases, which was an important factor in combustor exergetic efficiency calculation as shown in Equation (9).
The results showed that the exergy destruction of syngas2 was less affected as compared to the other two fuels.
However, it would also affect negatively on other components. 4.

The intermittent cycle is far more than the time that filtering surface could last in normal operation because of the flow mass of water and the mechanical properties of motorized valve.
Fig.5 The principle of sewage sub-system Fig.6 The pipeline impedance in sewage sub-system In Fig.6, represents the impedance of sewage heat exchanger and its subsidiary pipe line which is the main factor affecting the stability of running system; , , ,which are constant, mean the internal impedance of anti-blocking machine; While , , , , which could be changed by controlling valve to balance the flow distribution, mean the impedance of other external pipelines.
Another critical factor affecting the balance of flow distribution is the flow-head function , of pumps at all levels.
Hydraulic Properties of Double-stage Pump Technology In this paper, about the operation properties of the double-stage pump, we do a large number of numerical simulations whose conclusions are highly consistent.
(3) Changing the first pump properties: As is represented in Fig.9, the abscissa expresses the pump label head when the pump flow is zero in sample.

In Figure 1， it is that the entity model which is drawn by Pro/E is imported the to ANSYS software.Some parts need substitute for equivalent element which their physical properties are showed the element's real constant.
For the local system ,the hole diameters of bearing are individual 20mm, 40mm and their corresponding factor are 0.5,0.8.
After defining entity model, we begin to choose element type and determine real constant and define material properties and mesh models.
For the structure of PKM is made of steel, the material properties of PKM can easily define.
The viewpoint of modal analysis theory is that natural frequency and fundamental mode of mechanical system has only connection with mass distribution and rigidity character of mechanical system and has nothing with outside factor.

Circle Square Rectangle Steel tube Steel tube Steel tube Fig. 1 Section form of concrete-filled steel tube column Concrete Concrete e Concrete e Circle Square Rectangle Steel tube Steel tube Steel tube Fig. 1 Section form of concrete-filled steel tube column Concrete Concrete e Concrete e The most important thing is to determine the ultimate bearing capacity when analyzing the mechanical properties of axial compression members.
Examine effects of various parameters on the bearing capacity of CFRST column, remove the less affected factors, choose the main parameters, and perform the linear regression again, finally establish a simple formula of the ultimate bearing capacity of CFRST column based on multiple linear regression analysis.
Determination and test of the regression formula. 85 data are collected, which are from document [1,2,3,4,5,6].In order to get rid of accidental factors and random factors influencing the interference and increase the representation of regression equation, after initial regression, the original data with larger deviation are deleted, and the regression equation is established again, so repeatedly until the desired conditions are satisfied.
Material properties of steel with thickness 2.86mm and 7.6mm in reference [1] are listed in table 2.
Table 2 Material properties of steel Elasticity modulus （Mpa） Poisson ratio Yield limit fy （Mpa） Ultimate tensile strength fcu（Mpa） 182000 0.3 227.7 294.4 194000 0.3 194 298.6 The selection of concrete material model.

Change of stress field and displacement field will affect normal service of the tunnel.
The Nanjing Yangtze river tunnels are constructed by shield method and the shield tunnels are assembled by pressing connection with precast segment, which cross section is in circle shape with good load-carrying properties.
Mechanical parameters of material are shown in Table 2.
Table 1 Mechanical Parameters of Soil Material No.
A Discussion of the Factors Effecting on Longitudinal Deformation of Subway Tunnel [J].

Date, Department of Mechanical Engineering, Indian Institute of Technology, Bombay
Measurements of Rheological Properties.
The table gives the experimental conditions For each feedstock material, there are two factors, namely, temperature (oK) and load (kg) at three levels, 32 full factorial designs was used.
This means that the enhancement in properties is enabled by lubricity of a small addition of graphite to the feedstock.
Hence the three feedstocks can be injection moulded at a wide range of temperatures (which is inevitable due to loss of heat as feedstock flows to the mould), without affecting viscosity of the feedstock.

It has been known for decades that AlN inclusions can have adverse effects on the properties of steels [8].
Table 1 presents a summary of mechanical properties obtained on rolled TMR-DQP steels.
Tensile test and impact test properties obtained with DQP steels.
Kömi, Microstructural Characterization and Mechanical Properties of Direct Quenched and Partitioned High-Aluminum and High-Silicon Steels, Metals (Basel). 9 (2019) 256
Misra, Microstructures and Mechanical Properties of Tough Ductile Ultrahigh-Strength Steels Processed through Direct Quenching and Partitioning, Materials Science Forum. 941 (2018) 468–473