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It is seen that wheel surface dressed with elliptic ultrasonic vibration method has desirable characteristics such as high abrasive protrudent height, good abrasive contour character, more static effective abrasives such as high protrusion height, good contour, increased number of static active grains.

Material and Mechanics Capability. (1) cement: three gorges brand P.C 32.5 composite silicate cement；(2) Water: tap water; (3) Sand: fine sand of gradation III with fineness modulus of 1.86; (4) Stone: detritus ，the most grain diameter is 16mm, continuous gradation; (5) Steel: 14mm HPB235 round, HRB335 deformation and 316 stainless steel with 14mm diameter; (6) Concrete mixture design and compressive strength of concrete cube are shown in following table 1.
W=MQ/nF=KIt (1) In Eq. 1, W is the corrosion amount of metal in time t, g; M is the molar mass of iron, 56g/mol; I is current intensity, A; t is the electrified time, s; F is the Faraday constant, 96485.3383 ± 0.0083Cmol-1; n is the metal oxidation number of electrons lost in the process; K is the electrochemical equivalent for the metal; Q is the electric quantity through metal in the time t, C.

Rod-like grains exist in GJ-ІІ glass surface after testing in UGW at 150°C, with the composition of primary SiO2, a few Na2O and Al2O3 and traces of Fe3O4.
Acknowledgements This work is supported by Foundation of Science and Technology Commission of Shanghai Municipality (No. 09DZ0502200); and Shanghai Leading Academic Discipline Project (Project Number: J51504).

The surface consists of random and irregular grains (average diameter around 40 nm).
The cell number increases with time and there are more cells on plasma treated-DLC surface.

The basic transducer body integrated with a cup shaped grinding wheel and mounting flange with sufficient number of boltholes for mounting on the spindle of a machining center is illustrated in Fig. 1.
In case of using an SD600 grinding wheel without any vibration, the size of adhered burrs on the hole 0 30 60 Time s Fig.4 Tangential resistance during grinding (SD1000, Vs=57m/min, P=350kPa, S45C) 0 SD600 SD1000 15 10 5 Wheel (Grain size) Ground depth Q µm Vs=57m/min, P=150kPa, t=1min, S45C No vibration Vibration applied Fig.5 Plunge Grinding of S45C (Vs=57m/min, P=150kPa, t=1min, S45C) 2N Vibration applied� No vibration�edge is of the order of 26µm which is considered very small.

Introduction A large number of engineering practice and test results showed that the amount of moisture content and stress condition have great influence to the shear strength of soil.
Table 1 Physical index of soil samples Name Density (g/cm3) Liquid limit wL (%) Plastic limit wp (%) Sand grain content (%) Silt content (%) Clay content (%) Silty soil 2.727 51.0 26.0 34.7 52.5 12.9 Test Equipments.

Introduction In recent years, the consumption of gasoline especially as an energy source is increasing rapidly due to the increasing number of population in the world.
Furthermore, it can be seen that the solid solution of the CexZr(1-x)O2 were homogeneous as well as the agglomerated small grain particles.

Earlier investigations showed that the shock-wave loading results in a sharp grain refinement (up to 30 μm) on the metal surface, and the segregation of carbon takes place [4].
The peculiarity of this type of treatment is the formation of a number of secondary microcracks, which testifies to the non-uniform stress-strain state within this section, which is connected with an increased density of dislocations and hardening of the material during treatment.

Acknowledgement This work was supported by National Science Council of Taiwan and Chung-Shan Institute of Science and Technology under grant numbers NSC 100-2632-E-214-073-MY3.
Wei, Effect of serrated grain boundaries on the creep property of Inconel 718 superalloy, Materials Science and Engineering A. 530 (2011) 525-529

The cooling system, water flow and temperature, degassing, filtering, melting temperatures, grain refining, casting speeds etc. are all important factors without any direct relation to metal level control.
There are a number of metal level sensor types available on the market today.