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Gemini surfactant is a new generation of surfactant, showing many excellent properties such as the lower critical micelle concentration (CMC), high efficiency of reducing the surface tension and unique rheological properties[7-9].
Many good properties make Gemini surfactant has a broad prospect of application.
The Gemini surfactants show unique and meaningful properties.
The influences of the alkyl chain length, concentration, temperature and surface tension of alkylbenzene sulfonate Gemini surfactants on foam stability and foamability were studied in this paper, and various factors affecting foam stability and foamability were discussed.
There are many factors Influenced on foam stability, but the most important factor is liquid film thickness and the strength of the surface film [3].

Experimental results show that the hardness of plate and viscosity of slurry are critical factors for as-lapped wafer quality.
And the properties of hardness for each plates as show in Table 1.
Table 1 Properties of hardness for each plates Copper Plate(CP) Tin Plate(TP) Resin Copper Plate(CR) 553MPa 80MPa 258MPa 2.3 Measured Instrument Precision electronic scales (AL-204) to measuring weight loss in lapping process.
The results inappropriate viscosity would affect the MRR and N.U., the 20cp is best on MRR.
[12] Hyunseop Lee et al., “Mechanical effect of colloidal silica in copper chemical mechanical planarization”, Journal of Materials Processing Technology, pp. 6134–6139, 2009

Wei c and A.Kiet Tieu d School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong NSW 2522, Australia a hx899@uow.edu.au, bjiang@uow.edu.au, cdwei@uow.edu.au, dktieu@uow.edu.au Keywords: Edge crack, thin strip, cold rolling, mechanics analysis, stress intensity factor Abstract.
It depends on macroscopic factors such as the roll geometry, rolling speed, reduction or pass schedule, lubrication or friction and mechanical properties, as well as on microscopic factors such as the microstructure and surface micro-topography [1].
There are some causes which affect propagation of edge crack, including material ductility, inhomogeneous deformation with an uneven edge profile, and transverse variations in stresses [4].
Better understanding of stress levels in the crack tip region can be obtained through stress intensity factors.
Vol. 48 (2006), p. 697 [9] Stress intensity factors and weight functions, edited by T.Fett and D.

A parametric analysis has been carried out in the hypothesis of linear elastic behaviour of all materials (soil and structure) to identify the influence of various design factors, such as the height of the pier, the caisson embedment below the ground level and the soil mechanical properties.
Introduction Bridge response to earthquake shaking is affected by the interaction between three elements, i.e. the soil below and around the foundation, the foundation itself and the superstructure.
This phenomenon is quite complex since affected by several factors, such as the foundation configuration and embedment, nature and angle of incidence of the incoming wave field.
The second mode is rotational about the axis X and affects only the bridge deck (the period is 0.28s and the participating mass ratio is 0.11).
The parameter study highlighted the predominant role exerted by soil stiffness in affecting the period elongation of the overall system.

The effects of MMA/MA volume ratio, initiator and fiber mass ratio on the mechanical properties of the composites were investigated.
Therefore, in order to improve the mechanical property of PMMA materials, Marei [4] used short glass fiber to reinforce the PMMA matrix and found that the glass fiber could improve the mechanical performance of PMMA to some extent.
The influence of processing factors on ZrO2(f)/PMMA-PMA composites were investigated.
In the experiment, the influence of different processing factors on ZrO2(f)/PMMA-PMA composites was primarily investigated.
The mechanical properties of composites not only depend on the characteristic of fiber and matrix, but also in relation to the combine intensity between fiber and matrix.

Both temperature and strain rate are important factors affecting the deformation behavior.
Introduction Ti-6Al-4V alloy, a two-phase alloy, is widely used in the aircraft manufacturing, ship building and defence field for its many advantages such as low density and excellent mechanical and corrosion resistant properties.
The working processes of Ti-6Al-4V alloy, in order to optimize its mechanical properties and formability, has been the focus of research.
Controlling of morphology and size of theαphase is known as one of the most important keys to improve the properties.
All of the curves illustrate a flow softening behavior which is affected by temperature and strain rate.

Eight factors are investigated with the orthogonal label.
The factors affecting stress field are materials model, constitute equation, yield criterion, element type, element size and contact algorithm [4].
In the simulation, the material factors are fixed, whilst these factors are often waving during sheet metal fabrication.
The sheet metal material properties can be varied in a range owing to the rolling conditions variation.
In this case there are seven 3-level factors and a two-level friction factor.

It has been proven that fibers highly improve tensile impact resistance of the matrices [3], what is highly influenced by the properties of fibers [4].
The detailed description of the mixing procedure, properties of cement (CEM I 42.5R) and silica fume can be found in [10].
The rheological properties of the mixes in fresh state, which satisfy the requirements for the self-compacting concrete, are collected in Table 3.
Wang, Experimental study of dynamic mechanical properties of reactive powder concrete under high-strain-rate impacts, SCIENCE CHINA Technological Sciences. 53 (2010) 2435-2449
Ponikiewski, The laboratory investigation on the influence of the polypropylene fibers on selected mechanical properties of hardened self-compacting concrete, Architecture Civil Engineering Environment. 3 (2015) 69-78

Rock mechanical property is determined by rock strength as above analysis and structural surface.And structural surface strength, density, continuity and combination play a very important role in rock mechanical property and stability.
And they are potential factors of rock damage.Because structural surface strength is much less than rock tensile strength, some weak surface such as joints, beddings, schistosities and fractions may break up before rocks under ground strength.
And these are main factors: (1)Massive engineering practices indicate that great part of engineering rock instability and damage is caused from weak structural surface.
And structural strength property is a key factor for rock stability judgment
(3)Rock stress distribution under load is affected by structural surface and its mechanical property.

Problem was better solved to quantitative of the multiple factors.
Work flow of selection system According to the requirements of mechanical design, the type code of rolling bearing was chose mainly on the basis of bearing load conditions (size, direction, properties), speed and installation size in the selection process for user.
Through analyzing the influence factors of the bearing selection, the weight distribution for influencing factors of a variety of bearing was determined.
And they were load size, direction, properties, speed, size limit, life, lubrication mode.
Quantified value will directly affect the optimization results.