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Study on mechanical properties and impermeability of rubber concrete Xiuhua Zheng1,a*, Xu Zhang2,b, Shizuo Zhan1,c 1School of Transportation Science and Engineering, Harbin Institute of Technology, P.R.
Abstract: The effects of the size and volumetric content of rubber powder on properties of concrete, including flexural strength, compressive strength and permeability, were studied in this paper.
By mixing the rubber powder with the cement concrete as fine aggregate can fill concrete pores, reduce the formation of internal micro cracks, enhance the absorption of strain energy, and improve the toughness properties of concrete [2], greatly improve the toughness, impact resistance and seismic performance of concrete.
It will become the main factor that affects the strength of concrete.
Zheng: Experimental study on dynamic properties of rubberized concrete, JournalofTongji University(Natural Science Edition). 36(9) (2008), p. 1186-1190

The test results allowed for a determination of their properties and comparison.
Based on the analysis of the I-V characteristics, the basic electrical properties of the DSSCs: open-circuit voltage (VOC), short circuit current (ISC), maximum power (Pmax), Fill Factor (FF), and efficiency (ƞ) were determined.
Results and Discussion Optical properties investigation.
The efficiency is tied to the filling factor, in simple terms the higher the FF the higher the overall efficiency, and it is reflected in the results as the lowest and highest filling factors are comprised of TiO2/SiO2 system and pure TiO2.
Carbon nanotube-metal-oxide nanocomposites: Microstructure, electrical conductivity and mechanical properties.

The nanocrystallites have been related with properties such as hardness and density of 316L steel matrixes.
The Y2O3 and TaC dispersion in steel crystalline structures affects these properties and the sintering process.
Introduction Nano-crystalline materials have attracted considerable scientific interest because of their new chemical and mechanical properties attributed to the nanometer range of grain and crystallite size.
Their properties can be improved with different additions, which aim improving the final density of the steel and enhancing corrosion and mechanical behavior.
Souza, Carbide Distribution Effect on Sintering and Mechanical Properties of Stainless Steel 316L.

Some properties of the photosensitive resin were investigated.
SLA part accuracy is a direct result of the resin properties, and a low volumetric shrinkage resin that is cured possesses a high accuracy for its fabricated part.
It has now been found that the photosensitive resins of epoxy-acrylate hybrid systems can be used for SL process, and the photosensitive resins are distinguished by a very low viscosity, a very low shrinkage, a very low curl factor and good mechanical properties in the green state and after full curing.
While glass transition happens to polymers, their physical properties will make abrupt changes, especially mechanical property, their tensile modulus will change the first or second power of ten so as to make polymers turn from stiff solid to soft elasticity, which totally changes the applied properties of polymers.
The experimental results showed that the photosensitive resin possesses good properties.

Results and Discussions TABLE I Material PROPERTIES (Non-newtonian ,Svelta Petkova 2003) SL.NO.
PARAMETER VALUES FOR BLOOD 1 Power Law Index,n 0.4851 2 Consistency index,k 0.2073 3 Minimum Viscosity limit, ƞmin 0.00125 4 Maximum viscosity limit, ƞmax 0.003528 The initiation and localization of atherosclerosis is closely related to local hemodynamic factors such as wall shear stress, hydrodynamic pressure.
Three cases were used to study these factors and obtain the results correspondingly.
The following results display the wall shear stresses and how it affects the pressure losses.
References [1] Tang D, Yang C, Zheng J, Woodward PK, Saffitz JE, Sicard GA, Pilgram TK, Yuan C, “Quantifying Effects of Plaque Structure and Material Properties on Stress Distributions in Human Atherosclerotic Plaques Using 3D FSI Models”.2005 [2] Li Z-Y, Howarth SPS, Tang T and Gillard JH, “How Critical Is Fibrous Cap Thickness to Carotid Plaque Stability?

Main factors of borehole deviation and prevention measures Historical construction.
The main factors of borehole deviation.
Stratum and drilling technology are the main factors of borehole trajectory deviation [2].
As the stratum is not a single lithology formation occurrence in a mining area varies frequently and the rock stratification is highly developed, it makes the physical and mechanical properties of rocks are not the same in different directions.
The drilling parameters are also the important factors that affect borehole deviation.

Many current scintillators are based on these great luminescence properties of Ce3+.
The transparent ceramic materials not only have excellent mechanical and physical property, but they have high dopant concentration and uniformity compared to single crystal materials [7].
The transparency and mechanical properties of the transparent ceramics will be affected.
Effect of heat treatment in HF atmosphere on the optical and electrical properties of BaF2 ceramics[J].
Effect Factors of YAG Nano-Sized Powder by CO-precipitation Mathod[J].

The study of mechanics model technology is very important for cutting mechanics analyse, while there are lots of factors affecting cutting force.
All factors are uncertainty, so it is very difficult to build a comparable consummate mechanics model.
Cutting force empirical model and experiment result Cutting parameters (cutting speed, feed rate and depth of cut) are the main factors which affect cutting force.
Table 1 Physical and mechanical property of workpiece's material GCr15 material properties density （g/cm 3） rigidity （HV） young modulus （Gpa） Poisson ratio transmit heat coefficient (W/m·K) Heat expand coefficient (×10-6/℃) value 7.85 55 217 0.3 39 14.4 Fig. 1 Experiment of high speed cutting Table 2 Tool geometry parameter in experiment orthogonal rake circumferential clearance inclination angle cutting edge angle tool arc chamfering chamfer angle o o /( )γ oo /( )α os /( )λ or /( )κ r / mmε tb / mmγ ob t /( )γγ 0 7 0 95 0.4 0.25 -25 Cutting model is exponential equation generally.
Table 3 Choose of cutting parameters and its level experiment factors values -1 0 1 v(m/min) 200 250 400 f( /mm rev ) 0.05 0.08 0.15 ap( mm ) 0.05 0.08 0.15 Table 4 Experimental and predictive values of cutting force No.

Sec. 1 Taiping City, Taichung County 411, Taiwan a mytsai@ncut.edu.tw Keywords: Chemical Mechanical Polishing; Polyurethane Pad; Diamond Conditioner Abstract.
A diamond conditioner or dresser is needed to regenerate the asperity structure of the pad and recover its designed ability in chemical mechanical polishing (CMP) process.
Foam density, open or closed cells, cell shape along with the intrinsic polymer properties determines the final pad properties [12-13].
The dressing rate was one of the most important factors that affected the surface condition of the pad.
Gutmann: Chemical Mechanical Planarization of Microelectronic Materials (John Wiley & Sons, NY 1997)

Basic mechanical properties of bended tube (diameter 323.9 mm, wall thickness 40 mm) in the supply condition and after heat treatment were determined using tensile, hardness, impact, low-cycle fatigue and creep tests.
Also, there is no material database suitable for such issues, which would include mechanical characteristics and, in particular, creep, fatigue and crack resistance properties of the materials in both their initial condition and during service.
The authors find it appropriate to undertake research oriented towards the determination of relations between the technological parameters of the tube bending process with local induction heating and the mechanical properties of the tube bend material, which should not diverge from the properties of the tubes as delivered.
These parameters depend first of all on the diameter, wall thickness as well as the grade of steel of the bent tube and frequently on the chemical composition and mechanical properties within the same material grade.
The results of mechanical properties tests of the investigated materials are collated in Table 2.