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The prior austenite grain size given by austenitizing treatment was about ASTM No. 9.
The thermal fatigue properties including the damage factor (crack width × crack depth) and crack density (number of cracks per unit length) were revealed from a polished cross-section investigated using an optical microscope.
This indicates that the damage factor has a clear dependence on the number of cycles, as shown in Fig. 6 (a).
However, the crack density was not strongly dependent on the number of cycles (Fig. 6 (b)).
The damage factor has a clear dependence on the number of cycles.

The number of cycles varied from 100 to 400 cycles.
Specimens were identically maintained as specimens from ordinary concrete C50/60 and were subjected to the same number of cycles.
Fine-grained structure of UHPC in the connection with excellent mechanical properties would resist on a long-term basis to extreme conditions represented undoubtedly by these freezing cycles.
The UHPC specimens UHPC showed even better resistance in pull-out tests after a high number of cycles.
A surface damage due to freezing and thawing cycles was observed at the specimens made from ordinary concrete while the specimens made from UHPC remained without any damage after high number of cycles.

The samples contain the natural iron ore grain.
The sintered amorphous based material gains in strength from the natural iron ore grain for they are as the aggreate.
Table 1 Sintering conditions of sample adobes Sample number A B C D Glass powder content/% 10 15 22 25 Maximum sintering Temperature /˚C 1150 1080 1030 1000 Heating rate /˚C·min-1 170 170 170 170 Holding time of maximum temperature /min 45 45 45 45 Testing of the Sintered Samples Physical properties testing of the sintered samples.
Table 2 Physical properties of samples Sample number A B C D Marble Granite Density/g·cm-1 2.3 2.5 2.5 2.6 2.71 2.61 Compressive strength /MPa 41 88 94 50 98 120 Tensile strength /MPa 3 5 5 4 5 7 Bending strength /MPa 15 22 28 18 17 15 Hydroscopicity/% 0.04 0.01 0 0 0.03 0.23 Acid resistance /% 0 0 0 0 10.3 0.91 Alkali resistance /% 0 0 0 0 0.28 0.08 Radioactivity 0 0 0 0 - - The testing results indicate that the mechanical strength of the sintered material relate to the glass powder content of the sintered raw material.

The diffusion resistance around the grains is significant and affects negatively the adsorption capacity.
By increasing the stirring speed, the rate of diffusion at the level of boundary layer (around the grains) becomes higher because of the improvement of the turbulence and the reduction thickness of boundary layer.
This phenomenon can be allotted to the fact that at the beginning of adsorption the number of available adsorption sites of the adsorbent materials is more significant than that of the remaining sites after a certain time.
The Elovich model equation is given by (9) Where  is the initial sorption rate (mg.g-1 min-1) and  is a constant (g.mg-1) relating to the number of available sites.

Studies of voids in single metal crystals under shock loading have shown collapse of voids in the wave of the shock and formation of nano-grains [3,4].
Studies of nanocrystals under shock loading have shown suppression of grain-boundary sliding mechanisms and improvement in hardness and flow strength of shocked samples [5,6].
The dislocation density is measured by finding number of core dislocation atoms in the simulation (possessing nearest neighbors between 10 and 13, leaving out perfectly coordinated atoms with 12 neighbors) and calculating length of dislocation line per unit volume of system.
Visualization of the dislocation structure is performed using coordination number coloring using Atomeye [20].

However, with all their well-known advantages, cement compositions have also a number of drawbacks; their tensile strength is one order less than their compressive strength; they show a tendency to shrinkage.
Increase in strength, crack resistance, impermeability of cement composites will ensure dispersed reinforcement and the maximum possible number of electro-heterogeneous contacts between the cement hydration products and fiber surface.
(In Russian) [21] Babushkin, V.I., Plugin,A.A., Kostyuk,T.A., Matvienko,V.A.Influence of surface active centers on the strength of fine-grained concrete,Scientific bulletin of civil engineering, Kharkiv,KhSTUBA, 1998,V.5, pp.85-88.
Manage strength fine-grained concrete after forming on the basis of the calculation electrosurface properties of its composition, Kharkіv: KhSTUBA, 1999, No7, pp.63-67.

The density of the crucible material determines its stability (the number of heat changes).
This is because high-temperature grain boundary diffusion of defects in the crystal structure is inhibited in a single crystal.
The density of dislocations on micrographs was determined using the following dependence: ρ=Mtn1L1+n2L2 (1) where M is the magnification on a photomicrograph; t – foil thickness; n1, n2 - the number of intersections with horizontal and vertical lines, respectively; L1, L2 - the total length of horizontal and vertical lines.
The substructure has clear sub-boundaries with a homogeneous dislocation structure, without gradients in the density of dislocations, as well as their absence between the internal volume of grains and intergrain boundaries (Fig. 7b).

Introduction In the coal mine industry, the mining waste ores and the ore tailing of mineral separation are abound, of which the duns are largest in number.
Its number is large and most of them are piled around the ore fields and thus cover a large area of farming land.
In average every hectare of cultivated land receives an increase of grain output 675 kilograms.
Taking Teng-nan Coal Mine as an example, as a result of the adoption of the pattern of farming, cultivation of animals and processing of products, the yielded cereal crop can be used as the raw materials in the processing plants to produce chums and feedstuff for ducks; and the food residue of fish and the feces of ducks are left on the bottom of the pounds and can be used as organic fertilizers of the platform fields after being dug up to increase the grain output.

As such, nanoscience has demonstrated a unique enabling technologies for a number of applications such as solar cells, photodetectors, energy storage devices [3].
The PLD approach is well-known for delivering well-defined NCs along with a significant number of nanostructures [10]. 2.
The attained outcomes suggest that the PPy/NiO exhibited cluster shaped morphology which looks like layer of grain (C2 and C4).
The grain layer is well-distributed and coated onto the f-MWCNT surface.

Which was similar to the inverse distance interpolation method, may be expressed as: z(x0) was the value of the unknown sample, z(xi) was value of the sample which was known around the unknown sample point, was the weight for known sample points right to unknown sample, n was the number of sample points were known.
Tab. 2 Descriptive statistics characteristics of different soil granule composition layer (cm) soil granules grade Number of samples(N) mean median Standard deviation min max The coefficient of variation(cv) Method K-S test values ​​(p) Distribution Type 0-20 clay 78 13.27 12.61 3.18 7.91 20.51 0.24 0.232 Normal silt 78 58.41 57.87 7.16 43.41 75.19 0.12 0.826 Normal sand 78 28.33 27.26 8.11 10.55 46.33 0.29 0.726 Normal 20-40 clay 78 14.26 13.83 3.99 3.42 22.04 0.28 0.286 Normal silt 78 58.35 58.18 9.85 13.89 79.46 0.17 0.355 Normal sand 78 27.40 25.00 11.09 6.03 82.70 0.40 0.435 Normal The table 2 showed that the soil particle composition characteristics was similar in every levels, all with highest average content of silt, accounted for about 60% of the grain composition content.
Spatial Distribution of Soil Nutrient and Relationship Between Soil Nutrient and Soil Granule Compo sition for Grain Crop Region[J], Scientia Agricultura Sinica, 2002 ,35 (3) :297 – 302.