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The properties of other materials, namely aggregates (medium sand and gravel) and admixtures (polycarboxylate-based superplasticizer and sodium sulfate), were determined through literature review.
By doing this, the optimal combination of the four factors showed up.
Table 2 Initial mix Water-cement  ratio Cement content [kg/m3] Ratio of LASC and OPC Superplasticizer content Sand ratio 0.31~0.35 450~500 1:3 1.2%~2.0% 0.35~0.45 Note: the content of sodium sulfate is 1.0%. 2.3 Orthogonal Experiment 2.3.1 The Objects of Orthogonal Experiment The orthogonal experimental method is used to figure out the influence degree of the chosen factors on experiment indicators by showing how these factors affect the variance of the result [6]. 2.3.2 Determination of the Most Sensitive Factors and Relevant Levels After a range of preliminary experiments conducted and two fixed values determined, four sensitive factors were selected, i.e. water-cement ratio (factor A), cement content (factor B), sand ratio (factor C) and superplasticizer content (factor D).
It shows which factor is more influential to affect the indicators by calculating the sum of absolute difference K, the average difference k as well as the variance R of each factor under different levels.
Fig.1 Relationship between slump and factors Fig.2 Relationship between 10h strength and factors 3) The optimal combination is A1B1C1D1.

The size of bore diameter of hollow screw, to some extent, will affect the dual-drive feed system's static stiffness, and then affect the machining accuracy of the workpiece.
However, the size of bore diameter of hollow screw, to some extent, will affect the dual-drive feed system’s static stiffness, and then affect the machining accuracy of the workpiece.
In addition, we employ Structural Static Analysis to process its property and also study the relation between bore diameter of hollow screw and static deformation of the dual-drive system.
In the Workbench, the definition of model parts material properties is defined, as shown in table 3.
Generally, we should take every factor together to design the size of screw bore diameter.

Mckenna et al. [12] carried out an experimental investigation (based on statistical design of experiments) to find the effect of factors such as curing time and temperature, on compressive strength and permeability of moulds produced using ZCast 501 process.
For diagnose the statistical properties of the model by using the design expert can be analyzed by inspection of various plots.
The solidification rate affects the microstructure forms such as grain size and dendrite arm spacing[27], [28], [29] and [30].The microstructure that results from solidification directly affects on the mechanical properties of alloys.
IV As a result of the RSM experimental trials, it was found that the Shell wall thickness and weight density were the most significant factors affecting the hardness.
The feasibility of reduced SWT was justified by hardness and microstructure analysis.The microstructure that results from solidification directly affects on the mechanical properties of alloys.

Although the strengthening of b-Ti-15-3 alloys can be generally achieved by the precipitation of uniformly dispersed fine a-phase in the b-matrix [2], the mechanical properties of titanium alloys can be also enhanced by grain refinement.
Microstructure and mechanical properties after THP of titaniumalloys have been comprehensively studied[5~7].However, most of them were focused on the THP ofa+b dual phases titanium alloys, especially for Ti-6V-4V, to improve processing and control the microstructure, and thereby improve final mechanical properties.
Bania et al. [11] demonstrated that the strength of Ti-15-3 alloy had been significantly affected if there was absorbing hydrogen before aged treatment, that is, a precipitates resulted from aged treatment was easy to react with hydrogen atoms to form a hydride, and thereby deteriorate the mechanical behaviors of Ti-15-3 alloy.
The purpose of this study is to investigate microstructure and mechanical properties after THP of Ti-15-3 alloy.
Toriyama,” Strength, Toughness and microstrucstural factors in Ti-15V-3Cr-3Sn-3Al alloy”, Metallurgy and Technology of Practical Titanium Alloys, Warrendale, Pennsylvania, 1994, pp.181-189

OPFB filler and matrix play an important role in determining the mechanical properties of its composites.
Thus this study was done as an attempt to improve the mechanical properties of OPFB fibre filled plastic by adding mineral filler or clay in the matrix.
Effect Of MAPP as Coupling Agent on The Mechanical Properties of Palm Fiber Empty Fruit Bunch and Cellulose Polypropylene Biocomposites.
Wu, Thermal and mechanical properties of wood flour/talc-filled Polylactic acid composites: Effect of filler content and coupling treatment.
Bledzki, Mechanical properties and environmental stress cracking resistance of rubber toughened polyester/kenaf composite.

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

Properties of welds performed with the use of local cavity method are much better than properties of wet welds and meet requirements of classification societies for depth up to 200 m.
The ferrite content at the weld metal and heat affected zone should be in the range 25-70% to give optimum mechanical properties and corrosion resistance [7-8].
Studies should demonstrate how the water environment and increased cooling rate affects the structure and properties of joints.
Structure of welded deposits: a) sample P3 welded in the air, E=1.7 kJ/mm b) sample W1 welded underwater, E= 0.5 kJ/mm Heat affected zone microstructure could be critical for welded joint properties.
Charles: Super duplex stainless steels: Structure and properties.

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.

Introduction Wear and corrosion is an important failure form among mechanical parts.
During the usage process, working equipment or transmission system of machinery equipment could become invalid unavoidably due to the quality of material processing and assembly, climate and work environment, quality of fuel and lubricating materials, operation and other factors[1-4].
These changes will damage the formal superficial size and property of the surface of mechanical parts, which deterioriate technology gradually and lead to mechanical accident in the worst.
Smaller heat affected zone.
High hardness, high wear resistance, high bonding strength, suitable for steel, iron, copper, aluminum and other metal materials, can solve the high wear, corrosion, scratches, cracks, surface failure of precision repair, edges and corners, interior angles defect repair, and repair the surface of special shaped puzzle that can strengthen the surface properties of components to extend the service life of components in the broad field of surface engineering applications.

In addition, the factors affected the runoff and response of soil moisture on the runoff coefficients was also discussed.
Introduction The rainfall-runoff process is an important component of the hydrologic cycle, the hydrological response of watershed to the rainfall is determined by several key factors controlling the runoff formation.
In arid and semi-arid areas, in addition to the spatio-temporal variability of rainfall, surface conditions, such as crust, vegetation type and terrain characteristics were the main factors affecting the runoff [8], and the sensitivity of the initial moisture content to the rainfall-runoff process was related to the runoff mechanism [9].
Table 1 Basic physical and chemical properties of soil in the experimental base Saturated moisture content Field capacity Wilting points Saturated hydraulic conductivity Mechanical composition (%) [m3/m3] [m3/m3] [m3/m3] [mm/min] <0.002 0.002~0.02 >0.02 0.392 0.256 0.134 0.013 11.8 25.8 62.4 Table 2 Date of rainfall and designed rainfall intensity Wheat Green- turning stage Middle stage Late stage Wheat-stubble land Precipitation date 20/04 09/05 15/06 23/06 15/07 03/08 Rainfall intensity [mm/min] 0.45 0.75 0.42 0.75 0.49 0.72 Results and discussion Surface runoff process The rainfall-runoff process of wheat was shown in Fig. 2.
The long and slow recession process was also slightly affected by slope angle.