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The total grain output is510719t, and the average people possession is 350.73kg.
Yongchuan is a city with large population but a bit less arable land, which is a typical area lacking grains.
As mentioned before, the evaluation indicators are constituted by a number of indicators, however, the specific unit of the measurement of individual indicator is different from each other, which means the measure unit is different and it’s not good for mutual compare.
Therefore, these areas should develop the forestry and grain to improve the economic development level.

The smaller particle size can shorten the Li+ spread of the distance between grains.
Probably, the value of the amount of Mg-doped provides a compromised balance between the positive effect of inactive Mg2+ doping and the negative effect of the electrochemically active Mn2+ ion number reduction.
Carbon coated on one hand can inhibit Mn2+ oxidation, limit grain growth, let the material grain size smaller and uniform distribution.

To minimize the number of experiments but still capable of quantifying the effect of each variable, a statistical method of full factorial design was applied.
It seems the dissolved binder left gaps between tungsten carbide grains and overall netted in the form of higher surface roughness.
As mentioned above, the binder which connected WC grains was dissolved, leaving intergrain gaps.
Traversa, Effect of WC grain growth inhibitors on the adhesion of chemical vapor deposition diamond films on WC–Co cemented carbide, Diam.

It will be ZAO powder with Zn:Al=25:1(atomic ratio) which will be gone through the following progress:vacuum filtration for ZAO precursor(pH value of about 7),grinding the dry part into powder and calcination in muffle furnace at the temperature of 350℃ for 3h.With aforementioned progress, we are able to prepare ZAO powder with different atomic weight ratio by weighing distinct proportion of Zinc acetate and aluminum nitrate. 2)Preparation of ZAO/tubular TiO2(Zn:Ti=1:4) The process of preparation for ZAO/tubular TiO2 with Zn:Ti=1:4, shown in Fig.1, need to confect 250ml of 0.02mol/L acetate ethanol,100ml of 0.004mol/L aluminum nitrate and a number of 0.1mol/L NaOH-ethanol solution.
As we can see in the pattern, it is the fact that the diffraction peaks of XRD of samples broaden and the intensity reduce little by little as the content of Zn rise, demonstrating that the growth of crystalline grains of anatase was restrained by the existence of ZnO.
According to Scherrer equation D=Kλ/(βcosθ)(K as constant, λ as wavelength of X-ray ,β as half-width,θas angle of diffraction, respectively in the equation),the grain size of compostie particles of ZAO/TiO2 nanotubes by caculation, which were identical to TEM testing results of composite materials of ZAO/TiO2 nanotubes, were 10nm and 3nm(ZAO) respectively.
（3-1） In the equation: Dhkl as grain size of vertical direction along lattice plane; Bhkl as half-width of peak of diffraction; K as constant(about 0.89);θ as Bragg angle; λ as wavelength of testing X-ray.

The step size was 4/3mm and the mesh number was 232×100×246=5707200 according to the size of casting and mold (310×132×328).
And coarse equiaxed grain is easy to occur at the end of solidification.
When coarse equiaxed grain connects together, the liquid metal would be partitioned.
With the increase of resisting force which the liquid metal breakthrough the exquiaxed grain framework, the feeding driving force decreased and at last it is too small to finish the feeding, so the shrinkage void (porosity) structure will occur in the casting.

The number of granules with defects as voids and irregular shapes are higher in the last case.
Ceramics prepared from powders without spray drying have grain size around 10 microns while samples prepared from spray dried powders have grain a b size of about 5 microns and particularly for the sample with 1.0 wt%PAA, pores are smaller and more uniformly distributed.
Ceramics densities are not significantly different when compared to ceramics prepared from powder without spray dryer treatment, but microstructure seems to be formed by smaller grains and more uniform.

Kaplin and Brochu [6] showed that oxidation resistance of NiCoCrAlY depend of powder grain size used for thermal spraying.
The fine-grain powders increase the kinetics of α-Al2O3 formation during at high temperature.
In the structure of coating after oxidation large number of pores was observed as a result of e.g.
Brochu, The effect of grain size on the oxidation of NiCoCrAlY, Appl.

It can be also seen that there are a large number of the aggregates of particles in nano scale and some nano-particles have been carried into the cavity of the nanotubes in these composites (as arrow shown in Fig. 2b).
The peak at 2θ = 25.9o corresponding to HA (002) crystal plane is selected to calculate its grain size and the peak at 2θ = 30.5o corresponding to calcium phosphate (0210) crystal plane is selected to calculate its grain size in these composites.
The grain size of HA and calcium phosphate crystals in these composites are separately calculated to be 67.99 nm and 68.76 nm using Scherrer's formula [8].

Decrease in the grain size of the ceramic phase has been suggested to increase plasticity of the ceramic material.
In this paper we describe the development of nanocrystalline ceramic composite coatings, where the grain size of ceramic has been decreased and a few percents of alloying element has been added in order to toughen the coating.
Praxair Al-1110HP Al2O3 powder and Norton Cr2O3 powder were used as reference materials having grain size in the micron range.
A number of semispherical formulas have been proposed based on the crack types and materials.

BLSFs have the general formula (Bi2O2) 2+(Am-1BmO3m+1) 2, and consist of pseudo-perovskite (Am-1BmO3m+1) 2 layers interleaved with (Bi2O2) 2+ layers along the c-axis, where A is a monovalent, divalent, or trivalent metallic ion, B is a tetravalent, pentavalent, or hexavalent metallic ion, and m is the number of BO6 octahedra in the pseudo-perovskite layers (m=1,2,3,4,5) [1].
The grain morphology of the ceramics was observed by scanning electron microscopy.
With increasing Bi contents, the grains changed from spherical to round cylinder shapes and the grain size increased.