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In addition, in a few samples we found that pyrite grains contain or semi-contain the smaller arsenopyrite particles, this situation may produce intergrowth when the ore is crushed, but the total quantity is not large, and it has sample inclusion relation with few mineral types, the majority of the mineral particles distributed in the form of monomers ore.
From the mineral texture, except for a few coarse-grained disseminated ore after crushing to get quite a few monomer dissociation tablets, the vast majority of the ore must undergo grinding in order to get a higher degree of dissociation.
In table 1, the content of arsenic in pyrite is 0.13%-0.50% and the average is 0.31%, showing the mineral is arsenic pyrite; the average ratio of Au/As in the pyrite (arsenic pyrite) is fifteen times of cardinal number (0.02), indicating that the occurrence of gold in pyrite (arsenic pyrite) are inclusion gold.
Gold particle sizes are micro, dominated by <0.1μm sub-microscopic gold, and a small number is ultra-microscopic gold.
Arsenic and antimony sulfide ore and realgar have smooth edges, disseminated with small particles, mainly dominated by fine particles, partly medium grain and particulate, and uniformity is over 90%, belonging to fine-micro particle uniformly disseminated type.

And the finer the grain of ferrite, the higher its strength.
Accidents due to corrosion and erosion damage of oilfield pipelines lead not only to the loss of a large number of pipes, equipment downtime and shortage of oil, but also to irreversible pollution of the environment with oil and wastewater.
Thus, closer to the inner surface and partly in the Central part of the grain location has a characteristic banding due to the layering of light and dark areas.
Also, closer to the inner surface and partly in the Central part of the grain location has a characteristic banding due to the layering of light and dark areas.
However, the number of light areas is much larger than the dark ones and their size is 0.5...1.0 times larger.

As the absence of information and data in the early time, there are large numbers of uncertainties.
The sources and numbers of uncertainties will likely change over time.
The time it takes to execute any particular function or computation can be computed by combining three characterizing aspects: the steps required to perform the function, the number of times that each such step is executed and the time that it takes to execute each step once.
And it also addresses the difference of large-grain structure among the architecture.
Performance probability integral is a function that maps performance descriptions to a real number.

With the development of network literature website, the number of network literature increase dramatically.
Common tag on behalf of literature tendency, is one of the most basic and coarse-grained form.
Table4, Author tag frequency Secondary tags occurrence number Frequency of occurrence Funny 20 0.43 Passion 15 0.32 Mystery 8 0.17 Mentality 3 0.06 2.
Precision defined as the ratio of relevant items selected to number of items selected, shown in Equation 6.
Recall, shown in Equation 7, is defined as the ratio of relevant items selected to total number of relevant items available.

The results show that larger fiber diameter with less number of feeding increments can damage the fiber during polishing process.
The film rotation speed (e.g., RPM) and abrasive grain size will affect the tip roughness directly.
Acknowledgements This work was partially supported by the National Science Council, Taiwan, ROC under grand number NSC 101-2221-E-150 -027.
Shape and proportionality of anterior teeth, American Journal of Orthodontics and Dentofacial Orthopedics, Volume 126, Number 6, December 2004 [2] David M.
Soft tissue laser technology and cosmetic gingival contouring, American Journal of Orthodontics and Dentofacial Orthopedics, Volume 127, Number 1, Jan 2005 [3] Chung-heng Chang, Developing the sensing mechanism of bare fiber polishing machine, Master Thesis, Mechanical and Electro-Mechanical Engineering, Sun Yat-Sen University, Taiwan, ROC, 2005 [4] I-En Lin, A lensed fiber workstation based on the elastic polishing plate method, Precision Engineering, May, 2004 [5] I-En Lin, fiber polishing machine, Taiwan patent 088205656, 2000

There is a strong public desire to cut down on the number of settling areas created [1].
Earth Construction Earth has been used as a construction material around the world in a number of ways including earth plaster, adobe, compressed blocks and rammed earth.
One of the most important factors of the mix is a good grain size distribution.
For a good grain size distribution, different sizes of material components are preferred.
The sand with the smallest grain size, tailing sand, is a byproduct of the benefaction process and was collected from CF industries.

Due to the use of ceramic materials, minimizing the number of defects within the balls and the steel washers during production is of major importance.
According to the Hall-Petch relationship, a finer grain size to some extent leads to an increase in strength of the material as the defect size is reduced.
On the other hand, this fine microstructure is susceptible for defects in the range of the grain size.
Therefore, it is of great interest to detect even small failures on the bearing balls made of fine grained Si3N4 in order to make a statement about the constitution of the bearing.
In contrast, the undamaged bearing withstood loads up to 3.3 GPa before severe surface spall of more than 5 mm in diameter occurred within a low number of overrollings (Fig. 6b).

Laser dressing that removes wheel materials through ablation of the bonding material (resin) to expose cutting grain edges has been tested for aluminum oxide wheels [7, 8].
It is not easy to remove the bonding material and at the same time to make grain edges explosive out of bonding.
A number of significant laser processing parameters could thus be predicted.
A large number of CBN particles can be observed.
However it will also reduce the grinding efficiency because laser beam makes grain edges smaller and less sharp.

Results and Discussion Fig. 2 presents the micrograph of a steel sample exhibiting a fully austenitic microstructure, with grain sizes in the range of 50-70 µm and many cavities (predominantly formed by pores) inside the grains and at the grain boundaries, generating local discontinuities and interrupting surface planarity.
Additionally, a number of events with highest coefficients in the range of 0.031-0.5 Hz is noted, which correspond to the an event duration of 2-30 seconds (II in Fig. 3a).
In comparison, when the 5 wt.% sodium chloride solution is added (Fig. 3b – Fig. 4), an increase of CWT-coefficients in the mid and low frequency range of f = 0.031-0.5 Hz and an increase of the event number is notified, signalizing a rise of the corrosion event duration and the activity of the system.
Hereby the current noise signal exhibit high CWT-coefficients at low frequencies and a comparatively small number of corrosion events.

Yeh et al [3] named these alloys as high-entropy alloys, pointing out the well-known thermodynamic fact that the entropy of mixing (Eq. 2) of a binary alloy is maximum when the elements are in equal atomic percentages, and that the maximum configurational entropy (Eq. 3) in any system increases with increasing number of elements (N) in the system (Fig. 1) [1].
The large number of low LPE sites can act as trap and hinder the diffusion of atoms.
Slow diffusion can affect the number, growth and distribution of nucleation and the morphology of the new phase.
Slow diffusion also has several advantages in microstructure and property control, as it allows easy access to supersaturation and fine precipitate formation, higher alloy recrystallization temperature and slower grain growth rate [13, 14].
The main advantage of mechanical alloying is that the grain size is constant, and the grains are completely compact by the end of the process.