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Currently, research is generally on parameters optimization, movement and mechanical analysis, as well as load spectrum analysis of the cutting roller.
The relation between cutting resistance and coal rigidity Considering the influence of geometry shape, mine pressure, physical mechanical property of coal, the cutting resistance is: 0.5 0.35 0.3 1 cos ϕ β + = ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ +p z y c ot p b F A h t k k k k k b Bh .
The factors that influence the cutting ability Fig.2 factors affecting cutting ability Thus the factors that influence the cutting ability can be realized.
Fig.2 shows all factors to 12HM10 continuous miner.
College teachers innovate team project in Liaoning Province (08-117).Excellent youth science study fund at Mechanical Department of Liaoning Technical University, Excellent youth teachers science study and train plan fund in mechanical engineering department at Mechanical Department of Liaoning Technical University(07-75).

Testing of polymer packaging materials and packaging can be divided into [5]: - Testing of physical-mechanical properties, - Testing of barrier properties, and - Testing of health safety.
Its mechanical properties largely depend on the degree of polymerization.
The basic testing of mechanical properties is carried out by deforming the sample while monitoring the stress on the sample.
The most common requirements are for mechanical and aesthetic properties to replace more expensive plastic materials.
According to [13] the material has better mechanical properties if it has higher values of tensile strength in the transverse direction.

Flexible cable control system is the main type of mechanical flight control system, in which movement can only be transmitted by cable in tension, the stiffness of cable control system is affected mainly by predetermined preload(PP), however the excessive PP would increase friction between cable and pulley which leads pilot an unfavorable maneuver.
The mechanical control systems are applied to aviation aircraft for a long history though the recent trend toward increased usage of Fly-By-Wire systems, Cable flight control system is a type of the conventional mechanical control systems, it provides a reliable and economical way of controlling aircraft, so remains a popular option for most general aviation aircraft.
Their properties however induce many special considerations which have to be taken in account in the overall design of a flight control system.
But this paper didn’t concern the stiffness effects about pulleys and cable deflection, he give an installation stiffness factor possibly varies from 0.55 to 0.95 to deal with these effects.
The follow important factors of the calbe control system will be studyed: • The complex wire rope braided construction should be taken into account in analyzing the effects of linkage pulley, the inter-reaction among each wire would be different from the author’s assumption of symmetrical cable; • Friction between cable and pulley is also a complex issue, further study should be done about the friction theoretical calculation not only from test data; •There should be a effective method to verify the author’s calculation results, such as construct a long cable loop.

Metallurgy tests were also conducted in order to identify factors determining the degradation of the material’s structure and the cracking processes.
Introduction The durability of facilities operating under thermal and mechanical loads, such as pipeline systems operating in the chemical and power engineering industries, cannot be discussed separately from their current material properties.
This applies in particular to changes that take place in the microstructure of the material, and to their connection with mechanical properties [1-4].
In order to find the factors that determine crack formation and development, calculations of effort of the material of T-pipe T1 were made, and samples were collected from the degraded surface for material tests.
In the discussed case, thermal expansion of the pipeline, which induces forces and moments that impose load on the T-pipe in unsteady operating conditions, is the factor which determines the effort of the T-pipe material.

The mechanical properties of carbon fibers reinforced polymer composites are mainly controlled by the interfacial properties between the fiber and matrix even though they are also affected by the original nature of the fiber and matrix resin.
Plasma treatment modifies the uppermost atomic layer of the material surface without affecting its bulk characteristics.
As a result, the interfacial bonding strength between the carbon fibers and the resin matrix is low, good mechanical properties of composites cannot be achieved [8].
Surface Chemical Properties of the Carbon Fibers.
The effect of plasma treatment on IFSS is researched that has two main factors.

However, the conventional applications in prior literature took these time-varying properties into consideration barely.
The calculation results showed that the time-varying properties influence the sloshing characteristics significantly.
Consequently, it is very meaningful to study how the time-varying properties influence the dynamic characteristics of liquid sloshing.
Influence of draining flow rate In a real spacecraft system, the draining flow rate is affected by many factors[17,18].
This means that the external excitations play more crucial roles in affecting the sloshing characteristics.

The theoretic analysis reveals the influence factors and the quantitative expression affecting parts deformation.
Introduction Rapid prototyping technologies fabricate parts through laminating materials layer by layer, so the neighboring layers affect each other.
Shrinkage is intrinsic property during the material solidification in rapid prototyping, which is constraint from the former layer and is equivalent to imposing a surface load on the solidified layers to engender the deformation.
Therefore, the stress expression changes to kXs =)(ε 0)()( == XX u b o b εε The above equations demonstrate that the material shrinkage stands on freely contractive state, only affects the current layer and has nothing to the adjacent solid layers.
[3] Ma Zhiguo, Wen Bangchun, Yan Yunhui: Chinese Journal of Mechanical Engineering, Vol.35 （1999）, p 24-26.

.), 200, 240 and 280°C for studying systematically the influence of substrate temperature on morphologies, phase components and mechanical properties of CrN coatings, using the single-target magnetron sputtering in a direct-current mode.
Some researchers linked TS to the phase structure and mechanical properties of coatings[9], however, others think that TS would affect the growth of coatings so that it can make much difference to the morphologies of coatings[10].
Therefore, CrN coatings were produced by reactive magnetron sputtering technique in this paper, and the influence of TS on structure, morphology and mechanical properties of CrN coatings was studied by different analytical techniques such as XRD, SEM and EDS.
Ltd, Shanghai, China) and a MFT-4000 tester for material surface properties (HuaHui Instruments technology Co.
Substrate temperature is a very important factors, the compactness and crystallinity of CrN coatings improved with the increase of substrate temperature.

Inadequate density and poor mechanical properties are commonly reported using this technique.
Further mechanical testing is required in order to adequately compare the mechanical properties of the recycled and commercially available material, though initial results look promising.
Mabuchi, Mechanical properties of AZ31 Mg alloy recycled by severe deformation, J.
Higashi, New recycling process by extrusion for machined chips of AZ91 magnesium and mechanical properties of extruded bars, Mater.
Iwasaki, Corrosion and mechanical properties of recycled 5083 aluminium alloy by solid state recycling, Mater.

In order to find out the root which affects the shaft tower vibration, tower harmful vibration test and diagnosis had been done, and then the theoretical analysis of shaft tower vibration characteristics, including hazardous source test, self vibration properties test, vibration response test in [7] .
Self vibration properties test and theoretical analysis In order to meet the demands of aseismic engineering design, the testing and study of the dynamic charaeteristies of the shaft tower had been done in past years.
Contrast with the measured results, it was analysized about the interaction effect and some main factors on the system dynamic characteristics influence degree.
In [21], structure is regarded as equivalent plane problem based on mechanical properties of shaft-tower structures.
The member-floor mechanical model is established.