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It is obvious that l affects the internal friction angle f. f is minimized when l=0, because the resistance reaches its minimum shearing along the deposition plane.
The safety factor of the slope is denoted by F.
The influence of k on safety factor F becomes more significant as f0 increases.
Plane strain strength and deformation of sands affected by batch variations and different apparatus types.
Anisotropy in mechanical properties and its simulation of sands sampled from natrual deposits.

Effect of Aging pH Value on the Properties of Porous SiC Ceramics Produced through Coat-mix Process Hui Yang a, Hongsheng Zhao b, Zhongguo Liu, Ziqiang Li and Kaihong Zhang Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China ayanghui-502@163.com, bhshzhao@tsinghua.edu.cn Keywords: Porous silicon carbide ceramic; Coat-mix process; Aging pH value; Crosslink degree.
Introduction Porous ceramic materials have many excellent properties, and are widely used in many disciplines.
It is found in application that porous ceramic materials need further research and improve in the following aspects: thermo- mechanical properties, porosity and strength, materials aperture control, and production costs.
The aging environmental pH value is found to be a variable quantity for curing rate and crosslink degree, and an adjective factor to achieve improved performance of porous SiC ceramics.
It indicates that some other factors can affect the strength of porous ceramics besides the porosity.

Introduction Irregular products of granite are widely used in these areas such as architectural decoration, living appliance, precision machinery and so on for its beautiful artistic shapes and excellent physical properties, which are mostly machined by segmented diamond contour tools.
Combined effects on machining irregular surface of granite, three processing parameters, namely cutting speed vs, feed rate vw and cutting depth ap are selected to form three orthogonal factors[6].
According to the experimental factors and levels in Table 1, the orthogonal array L9 (33) is assigned according to the orthogonal test design method.
Table 2 gives the primary and secondary factor relations about TWR and GF are all B→C→A So it can be obtained that factor B is the first influencing factor to TWR and GF.
Used the values in Table 2, the tendency charts of various factors affecting the TWR and GF are shown in Fig. 1. 0.1 0.2 0.3 0.4 0.5 0.6 A1 A2 A3 B1 B2 B3 C1 C2 C3 Factor Level Tool Wear Rate[mm/dm 3 ] 200 250 300 350 400 A1 A2 A3 B1 B2 B3 C1 C2 C3 Factor Level Grinding Force Fx[N] 1 (a) TWR tendency chart (b) Fx tendency chart 1200 1400 1600 1800 2000 A1 A2 A3 B1 B2 B3 C1 C2 C3 Factor Level Grinding Force Fy[N] 600 800 1000 1200 1400 1600 1800 2000 A1 A2 A3 B1 B2 B3 C1 C2 C3 Factor Level Grinding Force Fz[N] 1 (c) Fy tendency chart (d) Fz tendency chart Fig. 1 Tendency charts about evaluation indexes Fig. 1 (a) is the trend of TWR that changes with the level of factors, which is reduced with the increase of cutting speed and aggrandized with the increase of feed rate and cutting depth.

Furthermore this resulted in an apparent decrease in viscoelastic and mechanical properties of compositions, as well as in lowering their crosslinking density and compressive strength.
Various factors can influence the physicochemical properties of polymeric networks.
These findings indicate that hydrogel‘s swelling properties are affected by the chain length of the monomer and the water content in the pre-polymerization mixture.
Mechanical properties and thermal behaviour of PEGDMA hydrogels for potential bone regeneration application.
Modulating the mechanical properties of photopolymerized polyethylene glycol–polypropylene glycol hydrogels for bone regeneration.

The characteristic microstructure and material component sequences with excellent mechanical, electrical and thermodynamic properties were predicted and screened.
Cu-Cr-Sn, Cu-Cr-Zr and Cu-Fe-P copper alloys with high strength and high conductivity have many influencing factors on their properties, such as matrix doping state, type and content of second phase, microstructure and interface characteristics, deformation and heat treatment process, etc [3, 4].
In this paper, the mechanical, electrical and thermodynamic properties of the characteristic microstructure are predicted by using the multi parameter collaborative optimization criterion of the key properties of the matrix and the second phase [5-7].
The mechanical properties, conductivity properties and thermodynamic properties of characteristic microstructure are predicted by using the multi parameter optimization criteria of matrix and second phase key properties (mechanics, electricity, heat, magnetism and dynamics).
Thermodynamic models of crystal structure, mechanical properties, electromigration and diffusion properties, interfacial bonding properties and temperature dependence were established.

Introduction Corrosion fatigue is that structural component is not only affected by cyclic stress, but also eroded by corrosion environment.
During the experiment, the existence of the corrosion medium results in the changes of the generating and spreading properties of cracks.
The mechanical model of analyzing the stress intensity factor can be build, as shown in Fig. 4, in which the internal loads ΔK can be deemed as equal to K.
Shuai: Journal of Mechanical Strength Vol. 21 (1999), p. 69 [4] Z.G.
Huang: Journal of Mechanical Strength Vol. 23 (2001), p. 243 [5] I.М.

The superior properties of GP have encouraged researchers to do further investigation on its performance.
Corrosion is a process which a physicochemical reaction between the material and its environment and brought to changes in the properties of the material. [1].
It has the properties superior than OPC and a most suitable substitute for existing OPC concrete.
Geopolymeric materials which derived from coal ash (Class F and/or Class C) can exhibit superior chemical and mechanical properties.
There are two main factors which could destroy the passivating condition in OPC concrete; carbonation process, acid and chloride attack. 2.

Amount of the mineral dry-shake topping affects mainly on the abrasion resistance, which is critical for the real life of the floor.
The relation can be defined as follows: y = -1.7684x + 33.553 (3) Experimental Procedure 3 – Determination of Influence of the Used Amount of Dry-shake Topping on Resulting Adhesion Properties of the Surface Finish The aim of this experimental procedure was to determine whether the particular amount of dry-shake topping can influence the resulting adhesion and cohesion properties of the entire floor structure, i. e. the adhesion to the base slab.
Moreover, it was observed that the amount of shake-ins is not the crucial factor for trowelled floors.
The main advantage of power trowelling is the resulting compact and smooth surface finish with very good cohesion and adhesion properties to the base.
On the contrary, only small effect was observed when considering the water absorption of the tested material and absolutely inconsiderable influence was observed in test of adhesion properties.

The reasonable agreement between the two data sets indicated the validity and provided a theoretical basis for using computational methods for determining the natural characteristics and influencing factors of HSK tool system.
One can see that the dynamic performances of the tool system are among the important factors to ensure the machining process stable and reliable.
The Experimental Verification of HSK Standard Shaft Free Mode We have got the structural modal parameters of HSK63A tool system with the finite element method, but there are some factors which affect the calculation accuracy such as minutiae feature and size of mesh.
At present, EMA has become the most important method of vibration analysis in the mechanical engineering.
The results further indicated potential use of this method for studying the dynamic properties of HSM (high-speed machining) spindle-tool systems.

Effect of Colloidal Silica and Nano Boehmite Mixture on Reaction Sintering, Microstructure and Physical Properties of Tialite G.
The results show that the presence of nano size silica and boehmite enhanced the densification leads to fine microstructure, mullite phase formation and improve the tialite ceramics properties.
The physical and mechanical properties of tialite are strongly determined by the microstructure.
Mullite as a second phase was used to improve the creep resistance and high temperature mechanical properties [11, 12].
Two important factors are affected on bulk density: 1-temperature, 2combination, density increases with growing temperature because of more condensation and sintering improvement.