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Fibres have high stiffness and strength and matrix has low stiffness and strength and resulting lamina properties falls in between those two extremes [2].
The extent to which the lamina properties approach those of fibres or matrix primarily depends mainly on Vf.
The Vf is expected to have an effect on cutting forces and machinability in general due to its effect on the mechanical properties of the composite.
The experimental work involved a full factorial design with two factors at three and five levels giving a total of 15 tests, details of which are shown in Table 1.
Larger effect of Vf was seen on the thrust force (PCR = 14.59%) however the fibre orientation was still found the most significant factor affecting thrust force (PCR = 69.46%).

Composite structure elements of Carbon steel and the Stainless steel can deliver excellent performance on both anti-corrosion and anti-oxidation, but also can take advantage of the mechanical properties of carbon, all of which make it widely used in the filed of shipbuilding, chemical, nuclear and so on [1].
But due to the difference of material properties, welding residual stress is more serious and complex in the dissimilar joint.
Welding simulation FE model and material properties.
The thermal physical properties and mechanical properties of the base metals(304 stainless steel and Q235) in different temperature are shown in Table 1 and table 2.
Table1 Thermal, physical and mechanical properties of 304 stainless steel [6].

Baseball required specialized sportswear, baseball equipment currently on the market on the style design is reasonable, but the fabric and lining materials used have not reached fully meets the ergonomic requirements of, heavy protective clothing have certain restrictions on the players ' actions, affecting the level of players play.
Figure 1 Basic baseball action Figure 2 The collision in the game Sports injury site statistics as follows: head, shoulders, chest, hip, wrist, knee and other parts of the damage probability [5] [ 6] .Analysis, this result is mainly attack and defense, and to keep the players in the competition intense body collision, when players touch base with playground competitive factors such as sliding friction and other factor.
D3O molecules is a commercial secret, belonging to "the expanding foam" material, is also a kind of "smart molecules" composed of impact resistance of a single material, can be presented in different gravitational impact of different mechanical properties of both hard and soft.
D3O material physical properties and the principles of application .D3O material in the micro level under normal conditions , the internal molecular arrangement is not very close , so the macro D3O material to maintain a state of relaxation , soft and flexible ; once was a severe impact or squeeze when the intermolecular immediately locked together to form each other hook with the flexibility of molecular chains will rapidly within 1 / 1000 seconds tightening harden to form a layer of protective coating , which digest the external , and the stronger the force of impact , the faster the reaction ; when the external force disappears , the material will return to its initial the relaxation of soft shells state .

Fu1 1 School of Mechanical Engineering, Shandong University, China a zhangsong@sdu.edu.cn, baixing@sdu.edu.cn Keywords: HSK spindle/toolholder interface, High-speed machining, Interference fit Abstract.
Introduction The performance of the spindle/toolholder interface is one of the important factors affecting machining quality.With the increase of cutting speed, the steep spindle/toolholder interface with a long 7/24 taper does not meet the desired level of the accuracy and the repeatability of positioning of the cutting tool as well as the axial and radial contact stiffness of the interface [1, 2].
The material properties of the spindle and the toolholder were shown in Table 1.
Table. 1 Material properties Young's modules E [N/mm 2 ] Poisson's ratio ν Density ρ [Kg/m 3] Coefficient of friction μ 206×10 9 0.3 7.86×10 3 0.2 Finite Element Simulated Results Effect of Centrifugal Force on Deformation.
Therefore, the appropriate interference between the spindle bore and the toolholder shank was the critical factor to make the taper and the flange contact simultaneously.

Different parameters of dielectric properties were investigated.
Various considerations, such as preparation methods, calcination temperature, chemical compositions, ionic charge, size distribution affect the dielectric properties of strontium hexaferrites [34].
“Quality factor is the reciprocal of dissipation factor which is the tangent loss [36].”
In a nutshell, based on dielectric properties composites with a concentration of 0.20 have best dielectric properties than other composites.  
Baykal, “Structural and magnetic properties of Ce-doped strontium hexaferrite,” Ceram.

Humidity, as an important factor to measure environmental comfort, affects living and production, and indoor humidity control is an indispensable part of modern architecture.
The indoor environment not only affects the industry but also affects human comfort and then affects the working ambiance.
These properties, as well as extraordinary variability and compatibility with organic and inorganic properties.
According to Fanger[6], human metabolic heat consists of external mechanical work and internal heat demand.
The accurate determination of the convective heat transfer coefficient requires the actual measurement of multiple factors, so we take the intermediate value here 55 W/m2K.

It was found that stirring strongly affected the quality of the film.
Especially stirring velocity affected the distribution of diamond grains.
It has been reported that the key factors which affect the quality of electrotyping are the composition of electrolytic solution, the electric current density of cathode, PH value, temperature, the distance between cathode and anode, the pretreatment of motherboard cathode, etc. [1－4] In this paper, the experimental results of electrodeposited diamond grains-metal composite film were reported.
This result suggests that the combinative mode between diamond grains and nickel is mechanical bond.
The density of the diamond grains in the film was greatly affected by the stirring velocity.

Meanwhile, as the high-energy laser beam drills through the rock sample, the skin burn points on rock surfaces occur in varying degrees, which definitely will change the physical properties of original rocks.
It is known that the heat affected zone around laser spots mainly focuses on the partial regions of the rock, and this zone is very small comparative with the size of the whole rock.
Assuming the factor,, present the dimensionless rate of solid substance in solid-liquid zone.
Similar to the solid-liquid zone, it is assumed that the factor,, present the dimensionless rate of gas substance in liquid-gas zone.
To simplify the work of the mathematical calculation, it is assumed that the thermal physical parameters of rock materials in every phase transition are only related to the temperature while other variables such as the pressure and the surrounding factors have nothing to do with it.

Introduction Carbon nanotubes [1] (CNTs) have attracted many scientists to study their extraordinary mechanical [2,3] and electronic [4–6] properties, and much efforts have been done to control their growth and properties [7–11].
The diameter of CNTs is an important property and is of interest for new applications that rely on diameter uniformity or the unique chemical properties of certain types.
Understanding the factors that affect the diameter may lead to a better understanding of the growth mechanism of the nanotubes.
In this paper, we point out an important factor that affects the diameters of CNTs.
This result implies that concentration of Fe3O4 affects the diameter distribution of CNTs.

However, the conventional epoxy resins do not posses adequate thermal and mechanical properties to meet the requirements of high performance structural products [3, 6, 7].
Yunfeng, Synthesis and properties of a novel, liquid, trifunctional, cycloaliphatic epoxide.
Hangquan, Synthesis, characterization, and properties of novel novolac epoxy resin containing naphthalene moiety.
Hsiue, FC.Chang, Characterization and properties of new silicone-containing epoxy resin.
Sankara Narayanan, Thermal properties of siliconized epoxy interpenetrating coatings.