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The effects of dopant such as La and Nb on the ferroelectric properties and switching fatigue properties have been reported in a number of recent papers [4, 5].
The surface morphology and grain size were nearly unchanged with Pb target current.

Microstructural evaluation of the castings (Fig 5a) showed a globular primary grain structure and a very fine eutectic.
Although the X-ray radiography did not show 1 2 any defects in the region from which the specimens were obtained a number of the tensile specimens failed prematurely during the tests.

When the as-synthesized powder was thermally treated at 250 o C (Fig. 1(a)), fine grain substructure was observed, corresponding to gold particles located at the core of PS-PVP micelle.
The optical properties of photoelectrocatalysts are very important, because they represent the number of photons absorbed.

Table.1 Mix proportion of concrete Specimen Number Cementing materials (kg/m3) W/B Sand ratio (%) Water reducer (%) Cement Limestone powder Titanium slag Lithium slag Silica ash K 100 0 0 0 0 0.23 40 0.9 ST1 80 10 10 0 0 0.23 40 1.4 ST2 70 10 20 0 0 0.23 40 1.4 SG1 85 10 0 0 5 0.23 40 1.4 SG2 80 10 0 0 10 0.23 40 1.4 SG3 75 10 0 0 15 0.23 40 1.5 Result and Discussions Sulphuric Acid Erosion Resistance of Limestone Powder-Titanium Slag Concrete.
The reasons can be attributed to as follows: first, the super-fine limestone powder, titanium slag and silica ash can fill in pore structure and interspaces among cement grains [5].

Fig. 1(d) shows the number of needle-like cores reduces and the left needle-like cores have the trend of polymerizing into granular cores.
The Cr diffuses outward the grains plentifully after a period of time to replace the Fe in former oxide with the oxide of Cr.

It has been widely recognized that this decrease in flow stress is caused by the interaction between the heavy flow of the conductive electrons and the various dislocations in metal grains.
Acknowledgment This work was result of SEED Research Program in KITECH (Project number: ER130008).

Therefore, simulation can reduce the number of tests and test cost
(In Chinese) [8] D.Li: The Grain Refining Processing of Ti-6Al-4V Using Step by Step Rolling Mill (MS.

It strengthens the binding among coal grains so that the compressive strength of formed coke is raised highly.
The particle size of pulverized coal are divided into five levels: <0.28mm; 0.28-0.63mm; 0.63-1.25mm; 1.25-2.5mm; 2.5-5.0mm，which in turn number 1~5.

The relationship between crack length and cycling number in semi logy coordinates is shown in Fig. 5.
Cyclic stress-strain response and low-cycle fatigue damage in ultrafine grained copper.

The studies on bio-mediated soil improvement have been carried out by a number of researchers including Dejong et al. [1], Harkes et al. [2], and Ivanov and Chu [3], and Qian et al. [4] etc.
Table 1 Soil properties Properties Indices Grain size 0% Gravel, 38% Sand, 43% Silt, 19% Clay Liquid limit 40.4% Plastic limit 24.9% Maximum dry density 1688.5 kg/m3 Fig. 2 Shear strength and calcite content for various treatment conditions Fig. 4 Ammonium content and pH measurements for various treatment conditions Fig. 3 Correlation between calcite content and shear strength improvement Measurements of pH and Ammonium Content.