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Size and volume of the particle are among factors affecting mechanical properties.
In addition, this technique improves mechanical properties such as ultimate strength and elongation [10].
It was clearly seen that injection speed affects the flow ability of slurry while die pressure affects the dense of the cast.
The microstructure and hardness properties were investigated.
It was clearly seen that speed affects the flow ability of slurry while die pressure affects the dense of the cast. 3.

The mechanical properties and wear resistance of the alloy are strongly dependent on chemical composition, properties of lubricants, load carrying capacity, thermal stability and the tendency to the formation of micro-cracks.
The main alloying addition is aluminium [3], its addition increases the castability, influences the size reduction of grains and improves the mechanical properties [5].
Copper addition improves the mechanical and tribological properties of the alloy, also increases the tendency of Zn-Al alloys to ageing and causes increase of the density of [3, 5].
Improvement of Zn-Al-Cu alloys properties can be obtained with heat treatment.
Hekimoglu, Effect of copper content on the mechanical and tribological properties of ZnAl27-based alloys.

The permafrost as a kind of special soil shows the significant mechanical properties from the following two aspects: the sensitivity to the temperature change, and the instability in the physical and mechanical properties.
The unique mechanical properties of the seasonal frozen ground site are most likely to cause two kinds of engineering diseases.
The uncertainty analysis method regards the process of seismic ground motion as a random process with many discrete complex factors.
Because the remodeling mechanical properties of soil which differs from the actual site, whether the laboratory test can detect the variations of the soil shear wave velocity should be modified.
These studies analyzed the influence factors of ground surface response, built a variety of frozen soil mode and the seismic response analysis of soil layer.

Because of the affected factors of Bottom Hole Assembly (BHA) , deflecting force of the formation, anisotropy of the formation, and other factors, the bit will always deviate from the well track in formations of fractured, fault zones, high dip, and other abnormal formations, especially in piedmont zone.
By downhole mechanical-electrical-hydraulic integration, the plungers would be extended pointing to the direction of deflection.
So, oilfield application of Φ311AVDS has proved that structural design, power generation unit, data real time transmission and its analysis, and other units such as hydraulic system, sealing properties achieved the aim of the design requests.
And the AVDS realized the effectiveness mechanical-electrical-hydraulic integration and achieved the aim of the downhole closed loop control.
The Φ311AVDS can not only improve the technologies of high dip formation especially in piedmont zone, but also establish the bases of developing other steering tools in China. 3 To optimize the designs of structure, power generator, and hydraulic system, sealing properties and other units, technicians should increase research and experiment intensity to make the Φ311AVDS more matured and perfect. 4 According to the requirements of the casing program, technicians should continue to research and develop the Φ311AVDS in series to adapt the development of drilling technology.

The performance of FRPCs is affected by multi-mechanism damage evolution under loading which in turn is affected by microstructural stochasticity in the material.
Another important factor is the effect of microstructural randomness on the delamination behaviour in FRPC laminates.
This was achieved by introducing cohesive zone properties in terms of the fracture energy.
Fig. 3 Damage initiation in [01/904/01] laminate under tension- A close up A number of statistical realisations of the distribution of fracture properties were simulated for the random fracture properties based on the Weibull's probability distribution, in addition to a case with uniform fracture properties.
Approximately 70% of the cases with random fracture properties resulted in values of crack length higher than those seen in the uniform properties case.

The balance requirement and the strength of the structure which is affected by the caving rock and lower coal roof were given.
According to the the roof properties, thickness and mining height is different, distributing the step key strata into the second, the third steps, and so on.
As shown in Figure 5, as a result of the interaction of multiple step structures is the main factors of surrounding rock collapse of steeply dipping seam group working face.
The structure is characterized by: high structure and low structure interaction and correlation together, low structure is the basis of high structure, Low structure instability make high structure lose part of force on high to support, thus affecting the structural stability.
Mechanical analysis of shell structure in longwall mining face of steeply dipping seam[C].

An elastic modulus iterative procedure was performed to obtain the material parameters in consideration of the nonlinear physical properties of corrosion.
One advantatage of this model is that it correlates corrosional and mechanical factors together, so we could apply it into user subroutine conveniently.
It has been demonstrated by experiments that materials exposed to flowing liquids can be affected by hydrodynamic or electrochemical factors, such as density, PH values of liquids and etc.
This section briefly introduces the fluid velocity that affects the corrosion rate.
In the next place flow velocity factor is taken into account to study flow mechanical factor on corrosion rates and to some extent corrosion rates go up with the raise of flow velocities.

This has resulted in decreasing the productivity of these machines by up to 30% and increased the power requirements by 30-50% depending on the physical properties of soil [3].
It depends on a number of factors such as mechanical characteristics of soil, size of the blade and the angle of cut (θ).
The friction forces depended on factors such as material of the blades, area of contact, lubrication, weight of the soil, and adhesion of soil on the surface of blades resulting in soil moving over soil as compared to soil moving over surfaces of bulldozing blades.
Chen, Research on reducing adhesion results of soil electro-osmosis and its affecting factors, Proceedings of the 10th International Conference of the ISTVS, Kobe, Japan, 20-254 August 1990, 45-55
Chen, Abrasive properties and mechanism of polytetra fluoroethylene and ultra high molecular weight polyethylene, Tribology International 14 (1994) 65-72

It has been found that the worktable speed is the key factor affecting the pattern of CHTC distribution, whilst the grinding speed strongly affects the overall magnitudes of the CHTCs.
, , (2) Where hw, hs and hch are conduction factors to workpiece, abrasives and chips. hf is the global convection heat transfer coefficient .
bw is the thermal property of workpiece material[6, 7], vs is the wheel speed .
(iii) Distribution of local convection factor, hw(x), along the grinding direction: (9) The variation of local conduction factor along the grinding direction can be derived from the Circular arc of contact model developed by Jin and Rowe [10]. 3.
The worktable speed is the key factor affecting the pattern of CHTC distribution of the grinding fluids.

Influence Factors Analysis of Hammer Head and Screen Plate Life of CFB Coal Crusher Haiou Lv Department of Mechanical Engineering, Shenyang Institute of Engineering, Shenyang 110136, P.
Fig.1 Coal crushed mechanism of circular hammer crusher The Over-Wearing Material Factor and Countermeasure for the Head of Hammer The Material Factor.
Table.1 Alloy steel machinery property & metal phase structure alloy steel property examination result striking toughness (U-shaped notch test sample) ak 30 - 50J/cm 2 ＨＲＣ 45 - 50 metal phase structure tempered Martensite + carbon compounds Crusher's Hammer Head Structural Wearing Factor and Solution Wearing Structural Factor.
The Solution to the Structural Wear Factor.
MATERIAL FOR MECHANICAL ENGINEERING, 23(5), 1999