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Quartz crystal, a semiconductor material with distinct properties in piezoelectricity, high-quality factor and temperature stability, has found extensive applications in high power sources, sensors, actuators, frequency standards, motors, etc.
A quartz crystal was used as the specimen material whose properties are given in Table 1.
Since the jet impact angle is an important factor affecting the cutting performance in AWJ machining [9], it is worth studying its effect in micro-machining.
Properties of the quartz crystal specimens.
According to the ANOVA, the water pressure plays the most important role in affecting the MRR, followed by particle size, particle concentration, jet impact angle and finally by nozzle traverses speed.

The so-called Design of Experiments (DOE) is a powerful statistical tool which allows experimenters to study simultaneously the effect of multiple factors i.e. variables, parameters, ingredients, etc.
DOE can effectively be used to study the influence of individual factors on the quality characteristic of a product and decide which parameter has more influence and which ones have less.
The elastic mechanical material properties are reported in Table 1.
PA66GF30: elastic and plastic material properties EMpa ν νp 9000 0.35 0.44 In Fig. 2, the simulation values for the punch load-displacement are correlated with experimentally measured values.
According to Taguchi method, once the parameters affecting the process have been determined, the levels at which these parameters should be varied must be determined [17].

Further Taguchi L9 orthogonal array was utilized to find the most significant control factors which will yield better joint strength.
Joints made by FWTPET process exhibit enhanced mechanical, metallurgical properties with lesser energy consumption the potential application of FWTPET joints includes catch cans in automobile engines, box type heat exchangers, collector with aluminum absorber, aluminum evaporator used in household air conditioners, and solar panel backing[8-10].
Factors and Levels of L9 Orthogonal Array Factors Levels 1 2 3 Rotational speed (rpm) 730 950 1320 Depth (mm) 0.2 0.4 0.6 Tube projection (mm) 0 1 2 Fig 3 reveals that the projection of the tube on plate as per orthogonal array.
The Table 3 shows the factors and levels of L9 Orthogonal array.
Muthukumaran Effect of projection on joint properties of friction welding of tube-to-tube plate using an external tool In t J Ad v ManufTechnol (2009) 507–514

The results exhibited that although the all processing parameters had a great influence on the average temperature of the slurry, heating time was the main factor affecting the maximum temperature difference of the slurry.
Other more efficient alloys with superior mechanical properties and great interest for industrial applications, such as the 7xxx series Al alloys, has been less commercially available.
In this technique, there are several key factors, such as heating power, heating time, the initial temperature of crucible and melt weight, which directly affect the temperature field of the semi solid slurry.
In addition, the variation of heating power hardly affected the radial temperature difference.
(2) Although the all the processing parameters had a great influence on the average temperature of the slurry, heating time was the main factor affecting the maximum temperature difference

Introduction Erosion is a complex process affected by many influencing factors and it has long been recognized as a potential source of problems in oil and gas production systems.
Material properties.
Material properties have a significant effect on erosion.
Steels and other metals generally show ductile erosive properties [5-7].
Important factors determining the particulate erosion rate are: the sand flow rate, the physical properties of the fluid (density, viscosity, temperature, et al) and the size, shape and hardness of the particles.

The best die material will be identified and the critical parameters affecting its performance will be introduced.
These materials have a wide range of physical and surface properties as detailed in Table 1, which are ideal for exploring the factors affecting adhesion.
Material properties and bonding behaviours of the die materials.
Thus the wettability of the die is one of the key factors impacting on adhesion.
[17] Pignataro, B., et al., Adhesion properties on nanometric scale of silicon oxide and silicon nitride surfaces modified by.

Load - deflection curve can be obtained by testing different stirrup ratio of beam based on the test, shown in Figure 1 (a), it can be seen from the figure that the stirrups isn’t the main factors to affect load - deflection curve.
This shows that the stirrup ratio isn’t the main factors to affect Beams reinforced beam stress reinforcement.
Carbon fibers added to the concrete, which can effectively improve the tensile properties of concrete and effect of crack resistance is influenced by many factors.
P.L.Bernburg,E.M.Gartner and A.Bentur.Carbon Fiber Reinforced Cement and Mortar .Proceedings.Materials Research Society,Pittsburgh.PA.211.255 [5]H.L.Cox.The Elastricity and Strength of Paper Other Fibrous Materials.British Journal of Applied Physics.1952.3.72 [6]K.Nishioka,S.Yamakawa,K.Shirakwa,Properties and Applications of Carbon Fiber Reinforced Cement Composites.Development in Fiber Reinforced Cement and Concrete,RILEM,Symposium,Sheffield,1986
[9]Ni Donggao, Lu Liyan, Liu Guiping.The Analysis on the Factors Affecting the Tensile Strength of Carbon Fiber Reinforced Concrete [J].

The most directly affect the construction interface performance and expressive technique factors is the building materials.
Material expression is the most important authenticity, Ma Mi expresses the mechanical properties of building material and structure, and not by surface material to pack it.
Along with the in-depth understanding of the nature, material mechanical properties in materials true expression become more and more important position, mechanical logic must be by means of specific structure form can express.
While the new structure makes the mechanical properties of materials and the potential performance gets more sufficient hair.
Play to their nature, not only the full performance of materials and natural texture, but also good at the mechanical properties using them.

The thixocast components, being manufactured at present, are usually produced by means of the standard foundry alloys (A356, A357); the mechanical properties of these parts, although superior to those of traditional castings, can be further increased by using custom alloys.
These factors, together with morphology of the solid phase in semisolid state and castability of the slurry, affect the semisolid forming of metals and the mechanical properties of the final parts.
Particularly, A356 and A357 alloys (Si content 7%) are the most widely used also in semi-solid applications, because of their excellent castability, due to the alpha phase spheroid particles dispersed in the eutectic, wide solidification range and good mechanical properties.
Different combinations of these elements were simulated in order to obtain an optimized alloy for semisolid technology, characterized also by good mechanical properties.
Carr, A.J.: Mechanical stir casting of aluminium alloys from the mushy state: process, microstructure and mechanical properties, Materials Science and Engineering: A Volume: 326, Issue: 2, March 31, (2002), p. 370-381

Consequently, the efficiency of FEA during the ship assembly is highly affected.
The advantage of the quad-morphing algorithm is the property of robustness.
It will ensure the property of boundary sensitivity.
Furthermore, mesh generation is a significant link affecting the accuracy and efficiency of FEM.
It combines the property of boundary sensitivity and robustness.