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Factors affecting the corrosion of these bricks were previously investigated in a number of studies [1,3].
Some of the main corrosion parameters are the presence of a slag coating on the brick, the brick microstructure, the quality of brick components like periclase grains, type of antioxidants, graphite flakes, the resin used, thermomechanical loads, slag chemistry, viscosity and so on.
In the latter case, a large number of replications is required to get precision and a large spead of data (e.g.10-50% variation) is common.
Because of the limited number of experimental data only seven testing outputs were compared to measured data (Table 2).
Using an extension of this approach, large numbers of plant data on refractory recess thickness, slag chemistry, number of heats per day, type of steel, slag/steel volume ratio, tap-to-tap time and temperature, and the degree of mixing of ladle can be used to create a model to predict refractory corrosion.

Al-powder having three different average grain sizes (25, 100, 180 µm) and two different kinds of ß-SiC powder (10, 40 µm) were used in preparation of the mixtures. 5% pure Cu powder with an average particle size of 50 µm was added to each mixture to promote densification during hot pressing.
(a) Schematic graph showing the orientation and localization of measured frames, (b) microstructure of the hot-pressed sample, (c) microstructure of the cold pressed sample frame along the marking lines) the ratio of Al/SiC and porosity/solid areas, the number of SiC particles and pores and as well the anisotropy (Γ) have been determined.
Comparing the porosities of the samples it can be stated that a less number of pores with a larger size develop due to cold pressing and sintering procedure, however, hot pressing results in more 0,00 0,50 1,00 1,50 2,00 2,50 0,20 0,20 0,20 0,20 0,29 0,29 0,63 2,50 2,50 10,00 18,00 RPS Area fraction (%) 5 % SiC, CP 25 % SiC, CP 20 % SiC, HP v=20 K/min v=30 K/min Ni Ni Cu 0,000 0,020 0,040 0,060 0,080 0,100 0,120 0,140 0,20 0,20 0,20 0,20 0,29 0,29 0,63 2,50 2,50 10,00 18,00 RPS Pore number x 100 (µµµµm -2) 5 % SiC, CP 25 % SiC, CP 20 % SiC, HP v=20 K/min v=30 K/min Ni Ni Cu (a) (b) Fig. 2.
As a function of RPS (DAl/DSiC) (a) the average area fraction of porosity, (b) pore number 0,4 0,6 0,8 1 1,2 1,4 1,6 1,8 0 500 1000 1500 2000 2500 3000 Distance (mm) Anisotropy CP25SiC/Cu HPAl25SiC10 CP5SiC/Ni-20 CP5SiC-30 (a) ΓΓΓΓ < 1 (b) ΓΓΓΓ ≈ 1 (c) ГSiC Fig. 3.
This effect can be seen more clearly when powder mixture has a high RPS, which has also the greatest number of pores (Fig. 2).

Table 2 The results of the real samples from different areas Planting Area Sample Number AFB1 AFB2 AFG1 AFG2 Positive Number Positive Rate/% Positive Number Positive Rate/% Positive Number Positive Rate/% Positive Number Positive Rate/% Jinan 10 - - - - - - - - Xishui 10 1 10 1 10 - - - - Shenxian 10 3 30 3 30 1 10 1 10 zhengzhou 10 1 10 1 10 - - - - Total 40 5 12.5 5 12.5 1 2.5 1 2.5 4 Conclusions A new method was established, which use HPLC to determine AFT in peanuts through the aflatoxin Derivation with the help of eliminating impurities by Immune affinity column.
Rapid-determining aflatoxins in grain by HPLC with iodine precolumn derivation[J].

Then, the fibres were sieved by using chip classifier machine to remove the smallest pollen grain of the spikes.
KAPPA number of the pulp was determined according to TAPPI T-236 “Kappa Number of Pulp.
Unbeaten OPMFS pulps show Kappa number value of 9.35 and fibre length of 0.99 mm.
Characteristics of OPMFS fibre pulp Characteristics OPMFS Soda AQ Pulp (unbeaten) Moisture content (%) 76.5 Screen yield (%) 36.7 Kappa number 9.35 Fibre length (mm) 0.99 Physical and mechanical characteristics.
Tensile index, tearing index, bursting index and folding number for OPMFS paper sheet were enhanced by the increment of beating time.

Infrared spectra were recorded using a FT-IR200 spectrometer (Thermo, USA) in the wave number region 400–4000 cm-1 using 32 scans at a 4 cm-1 of resolution.
If the hydrogen bonds strengthened, the stretching vibrational peak of hydroxyl moved to low wave number, the deformation vibrational peak of N-H moved to high wave number.
The absorption peak of 3354.20 cm-1 moved to high wave number, and absorption peak of 1549.00 cm-1 moved to low wave number.
[2] Yaping Wang and Yanxia An: Grain and Oil Vol. 36 (2011), p.1-4.

A large number of research indicate that basic oxygen furnace slag (BOFS), as an active additive, may be used to prepare high performance cementitious material [3, 4], and it possibly becomes an important approach of high effect recovery utilization of steel slag in the future.
For every granularity grade, the number of measured BOFS particle was not less than 500 to ensure the stability and accuracy of measuring results. 4) According to the following formula, statistical average value of RLB of steel slag granules in the same granularity grade was calculated to explore the relationship between sphericity and granularity of granule.
where, n is the number of measured granules; RLBi is the RLB value of single granule.
Granularity range /μm 0-2 2-5 5-10 10-20 20-30 30-40 >40 BOFS-W Number of particles 534 563 1390 1677 910 509 1024 Average value of RLB 1.496 1.422 1.452 1.472 1.481 1.446 1.483 BOFS-A Number of particles 1092 1207 1087 1349 1119 614 544 Average value of RLB 1.490 1.514 1.551 1.490 1.504 1.573 1.647 Fig. 15 shows the relation between granularity of BOFS and sphericity of granules.
In the future, we should focus on the stimulation of potential cementitious activity of BOFS and the optimization of its grain size distribution, etc.

For highly elastic anisotropic metals, applied loads will cause stress concentration at the grain boundaries and at the triple junctions, which can lead to brittle failure [8, 9].
In addition, since different crystal structures have different symmetry, the number of independent elastic constants for different crystal structures is also different.
(5) In these formulas, h indexes Planck's constants, k is Boltzmann's constants, NA indexes Avogadro's number, ρ is density, M stands for the weight of unit cell, n is the number of atoms in unit cell. νm is averaged elastic wave velocity, υl and υt refer to the longitudinal and transverse sound velocity, respectively.
(7) where, kB, NA, ρ, and E are the Boltzmann’s constant, Avogadro's number, density, and Young's modulus, respectively.
[5] FuZhi Dai, Yanchun Zhou, Wei Sun, Segregation of solute atoms (Y, Nb, Ta, Mo and W) in ZrB2 grain boundaries and their effects on grain boundary strengths: A first-principles investigation.

At present there are a large number of concepts, revealed a number of regularities connecting the material microstructure with its physical and mechanical properties.
To identify the grains boundaries and particles of carbide phases was applied chemical etching thin sections in 4 % alcohol solution of nitric acid (time of etching to 5-7 min.).
Two carbide types could be seen in the BS-mode image: very bright colored carbides containing higher-atomic-number elements and grey carbide containing lower-atomic-number element.
In other words, along with the tungsten and molybdenum atoms in М6С carbide can be up to 2/3 of iron atoms from the total number of metallic atoms.

Two and four weeks after inoculation, in two out of four columns (one each sterile and biological), 1.2 g of finely ground NPR (<36 µm grain size) was dispersed evenly on top of the lignite.
Before the NPR addition and after 2, 4 and 10 weeks 1 g wet weight lignite was removed from the centre of the columns to quantify acidophilic iron-oxidizing, acidophilic sulfur-oxidizing prokaryotes, acidophilic and neutrophilic heterotrophs with the most probable number (MPN) technique [14].
NPR led concurrently to a reduction in the number of acidophilic iron oxidizers.
The number of sulfur-oxidizing acidophiles was also reduced due to addition of NPR, although their numbers were generally low.
The Most Probable Number Method and Its Uses in Enumeration, Qualification, and Validation, Journal of Validation Technology, Summer 2010.

., their researches is showed that the performance of metallized gel propellants is related to the amount and grain size of metal power added.
The critical Reynolds number of the Non-Newtonian fluids is provided by Dodge and Metzner and is described by [15]: (1) Where is the power law or rate index.
In the present works the critical Reynolds number is approximate to the value 2362, but the maximum Reynolds number is closed to the value 30, so the flowing process in cylindrical tubes is considered as laminar flow.
For a cylindrical coordinate system, based on the above assumptions (, , ) the continuity equation is given as: (2) The momentum conservation equations in the, and directions respectively, are described by: (3) (4) (5) Definition: the non-dimensional pressure, P, the Reynolds number, Re, the velocity components, νi, and the shear stress components, τij, are defined by: , , , Governing equation: (6) (7) (8) (9) Where r, z, θ are the cylindrical coordinate system orientation, ρ is the fluid density, Re is the Reynolds number.