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., Germany) with an outer diameter of 6 mm), wall thickness 0.5 mm, length of the abrasives section 10 mm and the grain size D76 (63/75 μm) were used.
The normal tool concentration provides a smaller number of abrasives than the high one, which enhances the chip evacuation from the machining zone and reduces Ra.

These levels differ in their constituent elements (nuclei or atomic cores, molecules or microcrystals of chemical elements, spherulites or grains and subgrains, etc.) and the type of bonding (chemical, physical, mechanical or the combination of these).
In general, any property of metal and non-metal material can be determined by the total contribution of all its structural levels [1-3]: MP = f(Σ(ki∙MPi)), (1) where MP – material property; MPi – material property determined by a certain structural level according to Table 1; ki – coefficient, which takes into account contribution of a specific structural level of material to a certain (physical, mechanical, chemical, etc.) property; n - number of levels of the material structure, where the first (basic) is the electron-nuclear (chemical) level of the structural organization of the material.

It can be a direct result of mechanical alloying of the matrix which leads to its work hardening as a result of increased dislocation density, microstrain and also grain size refinement due to the milling process.
It can be explained that at higher load the separation of surface asperities and hence the number of contact asperities increase and consequently the worn surface of material increases.

Consequently, to prepare hollow spheres cocci is a good candidate as biotemplates for encapsulation which offers some distinct advantages: firstly, since the abundant functional groups on the cell walls are inherited from the bacteria which are able to bind metal cations or polar molecules through coordination or electrostatic interactions, no surface modification or activation steps are required, which reduces the number of processing steps and saves time.
In order to remove the organic template completely but to constrain the grain growth simultaneously, the calcination temperature is fixed at 700ºC.

The limited number of data also suggests that a higher fill fraction of semi-solid slurry in the shot sleeve gives slightly better mechanical properties.
The high cooling rate also caused unstable growth of the pre-existing solid particles, which yielded non-globular structure of the semi-solid grains.

Basically, metal oxide semiconductor-based gas sensor material (SMO) must have a grain structure on nanometer scale that has a high surface area to volume ratio [8].
Thus, it will affect the number of electrons released from the O2- or O-ions back to the sensitive surfaces of the SnO2-MWCNT composite.

In addition, any samples with defects, such as high angle boundaries (HAB), low angle boundaries (LAB), sliver, freckles and multi-grains were also considered defective and not used in this study.
This was accomplished by analyzing a number of low-magnification optical images for each alloy.

Introduction Urbanization is not just the increasing of the urban population and the number of the cities, including cities further socialization, modernization and intensification, which is a complex spatial morphology and socio-economic development process[1-3] .
Theory of grain from north to south and reasonable use of water resource in China[A].Theory and technology of water-saving and efficient agriculture [C].2004.14-18.

There is a considerable number of works published on the physiology of this group of microorganisms and their role in the anaerobic bioremediation of metals and organic contaminants [2].
The ultrafine-grain magnetite is an extracellular iron compound (Fe2O3.FeO) resistant to bacterial reduction and responsible for the bacterial growth stop [11, 12, 13].

So, how to prepare unique characteristics of the high activity nanosized Ni powders has aroused great interest of numbers of researchers.
Ni(OH)2 NiO Ni Grain size (nm) 5.7 8.8 24.0 Color green black grey black Table 2 The relation between H2 pressure and yield for catalyst amount 4.13 %, 120℃ and 10 h.