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Its electrical life and work reliability are mainly affected by arc erosion [4-6].
The arc erosion properties of Ag/LSCO(12) contacts was tested on the electrical contacts model tester(JF04C, Kunming Guiyan Jinfeng Technology Co., Ltd.
Morphological characters and erosion mechanism Material erosion and its morphology during operation of electrical contact are the results of many factors, and the formation mechanism is complex.
Thus cauliflower structure can greatly reduce the arc erosion resistance and mechanical properties of the Ag/LSCO contacts.
Gas bubbles in the molten pool burst and release energy under the arc, weakening the mechanical strength of cantacts.

Empirical evidence from the regression analysis revealed that higher composition of gravel significantly improves the concrete consistency properties while greater proportions of granite do significantly enhance comprehensive strength.
Specifically, a unit increase in granite proportion could significantly and negatively affect slump value by 65.13mm in the long run.
Jolayemi, Safety and Economic Factors of Steel Reinforcing Bars for Nigerian Sustainable Infrastructural Development: Case Study of Kwara State.
Mehta, Effect of coarse aggregate characteristic on mechanical properties of high strength concrete.
Bowles, Engineering Properties of Soil and Their Measurement, 4th ed., NewYork, McGraw Hill, 1992.

And the flow-induced stress causes to anisotropy and optical property, affecting surface molding state of part [3].
The conventional studies on residual stresses are limited to the thermal stress, a dominant factor of residual stress, and deformation of part.
Governing Equations and Material Properties Polymeric flow in the filling phase can be approximated to a flow between two plates separated by a small gap as shown in Fig. 1.
Materials for the thin wall applications requires good flow properties.
So, the residual stress affects the part surface quality seriously.

Human psychology in space is affected by the environment, thus human behaviors are affected , the relationship between the stimuli level of the environment and comfort level has a binary curve.
The teaching process needs to integrate theory with practice, experience the areas of psychological boundaries personally, which is the privacy of behavior space; focusing the non-intelligence factors of students, which is the cultivation of sensual thinking - such as the aspects of imaginations, emotions, and motivations, this will have a great impacts on the learning experience.
This nature , type, size of space gives people a different experience, This is an important factor affecting the sense of comfort.
In the curriculum of design, teachers let the Students should grasp the properties of a variety of common decorative materials, and assume a scene and experience it personally.
The sense of distance of color has a common affects in the architecture interface.

Another physical property is the high crystallinity index of NCC (nanocrystalline cellulose), which is an essential factor for the increased mechanical strength when applied as reinforcement or filler to nanocomposite films and nano-membranes with PVA (Polyvinyl Alcohol) matrix [7, 8].
The main goal of this work focus on the morphological and physical properties of NCC.
The change of band located at 1630 cm-1 to 1690 cm-1 was shows hydrophilicity properties.
The crystallinity index affects the mechanical strength of the composite when used as a reinforcement in the polymer matrix.
NCC’s properties make this material potentially used as filler to reinforced nanocomposite.

If the outburst happens, the results of it will affect the normal mining process, destroy the equipment, threaten the worker’s life, etc..
In the paper, we think that the study on the physical and mechanical properties of coal and rock with and without gas is the primary task to resolve the outburst problem in the mine.
In order to study the creep properties of rock-liked materials, laboratory experiments are the main methods to investigate time-dependent mechanical properties of rocks through long-term testing and observations, strict control of the testing conditions and elimination of the effects of secondary factors in time-dependency [5-8].
Analyzing the previous experimental results of coal creep properties and considering the shortcoming of General Kelvin model, one nonlinear damage creep model of coal is founded based on the general Kelvin model.
As the general Kelvin model can describe the elastic and viscous deformation perfectly, so in the following, we choose the Kelvin model as the basic model to describe the creep properties of coal.

The volume of battery box and control box and the method of installation are the factors which should be considered on the design of length.
As regard to the position which does not have a definite affect to the overall strength of the body, such as screw hole, pile hole and round, they are not taken into account.
In this paper, the main factor causing the robot chassis' exciting force is the random excitation because the robot moves on the road surface.
From the view point for optimal design of weight reduction, some technical requests such as the bearing weight performance of robot chassis, the function of noise suppression of framework, and other mechanical properties should be taken into account.
To reduce the weight of framework as possible if decrease of dynamic property of framework is not serious is the objective of optimal design of weight reduction.

A lot of delivery systems were developed such as scaffolds, membranes, nanoparticles functionalized with drugs or growth factors in order to increase the success rate in bone regeneration.
Magnesium has significant properties such as biodegradability, mechanical, electrochemical and biological characteristics comparable with natural bone [11].
The most important properties of these materials include biocompatibility, biodegradability and mechanical behavior similar to cortical bone [13].
Wu, Effect of submicron size SiC particles on microstructure and mechanical properties of AZ31B magnesium matrix composites, Mater.
Chai, Microstructure, mechanical property, bio-corrosion and cytotoxicity evaluations of Mg/HA composites, Mater.

The basic physical property indexes of the soil samples are shown in Table 1.
Tab.1 Physical properties of dredger fill Water Content ω (%) Wet Density ρ (g/m3) Void Ratio (e) Liquid Limit ωL (%) Plastic Limit ωP (%) Liquidity Index IL Plasticity Index IP 95.7 1.48 2.67 51.2 27.6 23.6 2.15 Test Results Analysis Consolidation Deformation.
The microstructure of the soft dredger fill is highly porous, which is a key influential factor of its deformation and directly determines the permeation and consolidation characteristics [6].
The drainage distance greatly affects the pore water discharging speed.
This is how the size affects the sample deformation.

These factors yield concrete of low permeability with low internal voids [4].
High volume fly ash concrete using class F fly ash exhibited excellent mechanical properties, enhance durability, low permeability to chloride ions and no adverse reaction when exposed to reactive aggregates [5, 6].
A factor screening was required to obtain most important factors that would contribute strength properties of brown coal fly ash composites.
Out of all the factors, lime has the least significant effect on the compressive strength.
However, further investigation is required to test durability properties and thermal properties.