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It has an advantage for avoiding from repetition of experiment as several factors are utilized in experiments.
The variables in this study contained three numerical factors of ambient humidity, applied voltage and tip speed.
Chang, Design of experiment (DOE) method considering interaction effect of process parameters for optimization of copper chemical mechanical polishing (CMP) process, Microelectronic Engineering, 83 (2006) 506-512
Mahmood, Physical properties of fish gelatin-based bio-nanocomposite films incorporated with ZnO nanorods, Nanoscale research letters, 8 (2013) 1-6
Rusop, Optical properties of well-aligned ZnO nanostructure arrays synthesized by an electric field-assisted aqueous solution method, Ceramics International, 40 (2014) 11193–11198

The barrier design is while manifests the design skill using the design science and art, is affecting humanity's daily life style as the modern product design's new form, Its advocate and the development will certainly to bring the positive influence to the human culture advancement.
At present in the world many designers have designed special activities and in all kinds of design in the design factors as design objects into account.
Some design is designed for all kinds of action inconvenience, some are in the senior high school entrance examination generally considered design factors.
Such as to reduce or increase the load, to maintain the stability of objects or reduce, reduce or increase the contact area, increase or decrease the friction coefficient, the ingenious force play a necessary physical strength, reduce or increase the physiological and psychological tension, dynamic factors into mutual conversion, static factors using the incline, increasing the rotation torque, reduce the impact force, enhance the import of morphology, enhance color, symbol of the visual impact, simplified or increase the operation procedure, increase or decrease the ladder, enhance safety consciousness.
Design barriers design of products over the next few years will be in the functional, easy to use, easy processing properties, emphasizes the profound expression of other innovation and deep cultural connotation.

However, in some high-pressure environments needed to be measured that requires better insulating properties such as online monitoring of smart switch, real-time measuring of high-voltage transformer winding temperature, current and other parameters, electrical sensing technology using in traditional smart substation is not applicable.
Special optical fiber sensing technology Special optical fiber sensing technology has many advantages: small energy loss, stable chemical properties, small cross-section, strong anti-noise capability, anti-electromagnetic interference, no spark, no short circuit fault, high temperature resistance and so on.
Based on the polarization properties of optical fibers, it measures current indirectly by measuring Faraday rotation angles in optical fibers.
Because of its fragile mechanical properties, choose acrylate material to be the second cladding layer.
Pressure and Temperature are two main factors in improving its sensitivity: First, since the refractive index of light caused by temperature has the most significant impact on coupling wavelength, the temperature sensitivity of fiber grating can be improved by selecting the appropriate core or cladding doped materials and there density.

Nanoparticles in solution offer unique electrical, mechanical and thermal properties due to their physical presence and interaction with the state of dispersion.
The formation and growth of ice crystals during cooling and warming was affected by many factors including concentration, temperature, impurities, mass and heat transfer in the system, and so on.
Nanoparticles in solution offer unique electrical, mechanical and thermal properties due to their physical presence and interaction with the state of dispersions [20].
Selective freezing of target biological tissues after injection of solutions with specific thermal properties.
Properties of polymer–nanoparticle composites.

Materials and Methods Straightness of rails is one of the main indicators of their quality, affecting the stability and throughput of the railway.
Considering this issue, it is proposed to distinguish 6 main groups of parameters and factors, 2 groups of which characterize the entire cycle and the existing level of production of rails before their editing, and the remaining 4 groups of parameters refer directly to the correction of rails.
Factors affecting the straightness of finished rails: - statistical dispersion of straightness of rails before straightening; - statistical dispersion of values of mechanical properties, height and other geometric dimensions of the cross-section of rails before straightening; - main unchangeable parameters of rail equipment; - characteristics of the applied straightening technology; - parameters of machinery and technological equipment, which affect the stability of maintaining the technological mode of straightening; - automation of straightening process and control of straightness of finished rails.
On each individual rail, we will get different values of residual stress, different straightness and a general deflection, since before correcting for rail indicators, many factors, such as: 1.
All these factors have a direct effect on the straightness of the rails.

The fully effective utilization of large aluminum forgings in aerospace structures has been hampered in the past by inadequate understanding of, and sometimes inaccurate representation of, bulk residual stresses and their impact on both design mechanical properties and structural performance.
Experimental Program A detailed, coupon level test program was conducted in order to quantify the impact that bulk residual stresses have on both mechanical properties (like strength, toughness and fatigue crack growth rate) and spectrum fatigue performance, including both crack initiation and crack growth.
With the additional assumption that the bulk material response is elastic, both stresses and stress intensity factors may be superimposed.
P., “Stress Intensity Factors, Crack Profiles, and Fatigue Crack Growth Rates in Residual Stress Fields,” Residual Stress Effects in Fatigue, ASTM STP 776, 1982
[11] Fett, T. and Munz, D., Stress Intensity Factors and Weight Functions, Computational Mechanics Publs, 1997

Reaming is a common machining process with the characteristic properties of enlarging, smoothing and accurately producing the original holes to tight tolerances.
Some earlier researchers [7] argued that the hardness and thermal conductivity are considered as the material properties mainly responsible of the crater wear.
The analysis of variance (ANOVA) was performed for the factors and their contribution rates were determined.
For reaming experiments, the control factors and levels of each parameter are given in table 3.
The influence of material properties on the tool crater wear when machining Ti6Al4V produced by Additive Manufacturing technologies.

In industrial construction of loess area, rainfall is one of the important factors inducing excavated slope instability.
Rainfall is one of the important factors inducing slope instability.
They emphasized the affect of matric suction to soil slope.
Y direction permeation rate closer to Surface water level were stable and less affected by the terrain.
Defined Mohr - Coulomb constitutive as material constitutive model and determined the material properties by the soil weight, shear strength el. which confirmed by test.

Yet, the major drawbacks in using magnesium alloys are the limited mechanical properties (strength, hardness, corrosion resistance) especially at high temperatures [2].
Precipitation hardening usually improves the magnesium alloy mechanical properties resulting in a severe reduction of the corrosion resistance [2,3].
Rare earth (RE) elements are known to improve the mechanical properties and corrosion resistance of magnesium alloys [4-18].
Stress-strain curve is clearly affected by work hardening (Fig. 2(a)).
The stoichiometry factors x and y can be respectively 0.66 and 0.33, as reported by Apps et al. in [10] for a Y- Nd-containing magnesium alloy, using quantitative dispersive energy spectroscopy.

Long term period exposure to poor IAQ level, can lead to discomfort and uneasy feeling and thus may affect productivity and quality of life.
The thermal sensation of the human body is the key factor to determine the degree of thermal comfort achieved.
Table 1: Features of the office Features Office room Designated Room DPU lecturer office Floor Area 122.06 m2 Volume 330.25 m3 Maximum Occupancy 40 persons 14.87 m 8.21 m Fig 1: Layout of DPU lecturer office The equipment used to analyze the properties was Telaire 7001 CO2 Monitor and the data logger used in the experimental was HOBO Temperature/Relative Humidity.
If the number of occupancy is decreasing, it will affect the CO2 level content and decreasing the value.
This is due to the activity level affect the thermal comfort for a certain occupants.