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The detail chemical composition and sample number is listed in Table. 1.
As listed in table 1, the sample number of Bx-BZN (x = 0.5 ~ 5) indicated that x wt% of B2O3 was used as sintering flux.
Sample number and detail chemical composition.
The grain size of B5-BZN is larger than that of B1BZN.
The B3+ ions prefer reacting with ZnO to form the glass phase within the grain boundary of BZN.

Magnesium alloys have attracted a great deal of attention and have been extensively studied, but there is still a major obstacle to their practical application, namely, their poor formability at room temperature, which basically originates from their insufficient number of slip systems.
The microstructure of the plane parallel to the extrusion direction exhibits an inhomogeneously developed microstructure that consists of elongated coarse grains and some large grains and small grains.
On a cross-section in the extrusion direction, the average grain size was about 20 μm.
After 10% rolling, twins were formed in many grains (Fig.3a).
After 60% rolling, the average grain size was 6.25 μm.

As the heat input increasing, the grains of weld nugget and heat affected zone became larger accordingly.
As the heat input increased, WN had larger grains, meaning the number of grains per unit area and grain boundary became less, which led to weaken the function of preventing dislocation from moving and coordination around the grains, in the end, the deterioration of butt joints' tensile properties occurred.
Joint A,B,C had the approximative grain size of HAZ and plastic deformation of TMAZ.
The weld nugget composes of fine-equiaxed recrystallized grains while coarse-bent recovered grains in TMAZ.
The welding parameters had obvious effect on the grain size of weld nugget and HAZ.

Magnesium ferrites belong to the family of soft ferrites which finds a number of applications in heterogeneous catalysis, adsorptions, sensors, antennas and in magnetic technologies [3].
It is formed by large well conducting grains separated by thin poorly conducting grain boundaries [14].
The electrons reach the grain boundary through hopping.
If the resistance of the grain boundary is large, the electrons pile up at the grain boundary and produce polarization.
The values of tan δ depend on a number of factors such as stoichiometry, Fe2+ content and structural homogeneity, which in turn depend on the composition and sintering temperature of the samples [24].

In addition, mining subsidence caused a large number of geological disasters, which seriously affected the mining area of people's lives and property safety.
"The Guidance" puts forward "stabilize grain production and strengthen agricultural development", energetically promoting the production capacity of grain.
The overlapped areas of crop and mineral production is the major grain producing areas and the major mineral resources producing areas.
Grain production is as important as mining production in the overlapped areas of crop and mineral production for its economic growth[3].
In this way, in a large number of exploitation of coal to give impetus to economic and social development, the maximum grain yield is also ensured at the same time.

Grain size, surface roughness and melt duration as a function of different laser fluences are also determined.
The defects in the disk-like grain decorated by the Secco-etching are related to low-angle grain boundaries.
The fine- grained polycrystalline Si area has a roughness on the order of 4nm root mean square (RMS).
The EC plays a crucial role for the formation of a single-crystalline(c-Si) grain due to the defects, especially grain boundaries [18-19].
Masuda, Physical review letters, Volume 59 Number 19, November (1987)

The films showed a smaller grain size.
The increased number of nucleation sites with different orientation inhibits the growth of large crystallites.
So the films deposited at 6cm have a minimum grain size.
With the increase of the Dst, the effect of the hydrogen decreases, the grain size along c-axis becomes bigger though the grains along other direction still exist.
The films showed a smaller grain size.

In polycrystalline materials, these studies have revealed that the non-linear response is originated at microstructure level, specifically on the grain/grain boundary interfaces.
The bulk capacitance has been extracted from an alternative approach to ceramics and single crystals [18], based on the following relation, -Z''(ω)=1/jωC, where C is the bulk capacitance values, ω the frequency and j represents the complex number and it is commonly named as imaginary unit.
This anomalous behavior can be associated with the electrons motion in the interface grain/grain boundary.
Based on the Pike's model [14], which proposed homogeneous grains surrounded by a grain boundary, it is possible to consider our system as homogeneous and isotropic grains separated by a semi-viscous layer (the grain boundary).
On the other hand, for the doped samples it is observed an increase in both defect and electrons number in motion with the increase of the bismuth concentration.

When the specimen is aged for 250 h, the big particles start to consume the nearby relatively small particles, leading to the decrease in whole particle number while the increase in the number of large particles.
Finally, large ferritic grains were observed, as shown in Fig. 2(f).
Fig. 3(f) shows that the boundary of the recrystallized grains has grown into the local grain with high density of dislocation, which decreased the store energy of the swept local region.
The driving force for the movement of the boundary is the difference in the distortion energy between the newly recrystallized grains and the surrounding high energy grains.
As the growth of the recrystallized grains, the matrix turned into large ferrite.

Next it was shook up and the reference substance solusion was obtained. 1.3.2 Preparation of the samples solutions Ten grains of suppositories were took, warmed and molten, mixed uniformly and cooled.
As a result, the samples solutions were obtained. 1.3.3 Preparation of the negative control solution Firstly ten grains of empty suppositories without Sophora alopecuroides were took.
Fig.1 Figure of matrine HPLC 2.5 Repeatability Test Six samples with the same batch number were took and processed according to the preparation method of the test solution.
The result was shown as Table 1. 2.8 Sample Determination Respectively, 3.5g of samles with three different batch numbers were took and accurately measured.
As a result, the sample content with three different batch numbers was 1.997mg/grain,2.058 mg/grain,2.243mg/grain respectively.