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The smaller TiO2 fineness is, the more fine-grained particles are in the system which size smaller than 45um.
The TiO2 particles itself and agglomerating particles will appear many spaces which form a large number of pores.

• Texture and shape: Scanning Electronic Microscopy (SEM) was carried out in metallized samples with gold in order to identify the texture, shape, and size of the grains.
[7] JCPDS data: index numbers 01 082 1690, 01 072 1651, 01 071 2396 and 01 072 0506.

Such thermal decomposition leads to the degradation of fiber strength due to grain growth and porosity increase.
Acknowledgement We gratefully acknowledge the financial support of National Natural Science Foundation of China (NSFC, grant number 50403010).

.;, , is bulk modulus of pore fluid; is total density of the saturated soil, and can be derived by , where is porosity, and are density of solid grains and pore fluid, respectively; ; is the fluid viscosity， is the intrinsic permeability； denotes the Laplace operator.
The layer number N is decided by precision.

A large number of land-use impact studies on water resources have been carried out for watersheds with a focus on water scarcity, flood, erosion, and water management.
Grass, 5.Homestead, 6.Grain Fig.1 Land use change in Skjern catchment From table 2, the area of forest occupied in total area is 97.91%, about 1150.5 km2；the area of homestead is 21 km2, occupied 1.78%, and the area of water is 3.5 km2, occupied 0.3%.

Rapid and unordered growth on surfaces of the nuclei by way of adsorbing Ni2+ and MoO42- leads to formation of ball-like nickel molybdate crystal grains.
After hydrothermal treatment under high pressure and temperature, the [Ni(EDTA)]2+ will tardily dissociate and release Ni2+ with very low concentration, generating a small number of N nickel molybdate crystal nuclei.

Elemental Si with the highest number of Si dangling bonds among the decomposed silicon species, has the highest probability to form Si-Si bond and hence silicon droplets in the gas due to collisions.
Growth with this condition is found to be deteriorated with particles on the epi surface, probably due to the exfoliation of these grains from the tube.

Aluminized explosives and explosive energy design with meso system components are also closely linked,such as Al powder particle size,surface area and other factors affect meso explosion heat,detonation pressure, detonation velocity and energy of wavefront consumption.Charge density and the charge process also have a significant impact on the structure of energy output of aluminized explosives.Therefore,for the design of aluminized energy explosives,it should be calculated on the basis of repeated theoretical repeated experiments,in order to obtain a good overall performance for explosives[6]. 2.3 Formula design Explosive JULH-1 is made up of RDX as its main explosive,AP as its oxidizing agent,Al as its raw materials and HTPB as its binder.Making the raw materials to micor order or sub-nanometerorder by ultrafine grinding and using the technology of grain composition,several experiments of measuring energy output structure were carried out under water and some scientific and reasonable
Conclusion (1) Ultrafine particles of explosive mixture containing the number of stomata more than ordinary explosives,the pore volume and surface energy of the stomata tends to be the same.Under the effect of shock wave formation of hot blast,the hot is rapid reacted, other unexploded explosive powder is set off the energy released by enough to quickly.The utilization of the explosive potential can greatly improve

The sample Brinell hardness results were in Fig.3, the sample3, sample 5 and sample 7 hardness were lowest, which was during 190-210HB from the figure, the typical organization was the F+P, the hardness number was high, which was during 340 to 350, the organization was the stripped bainite, the sample 4, sample 6 and sample 8 had the organization of the F+P+B, and the hardness was during 300 to 320.
The effect of V-Nb on the growth of austenite grains in 17CrNiMo6 gear steel[J].

Carbon coating can not only improve the electronic conductivity of the LiFePO4, but also effectively control the grain growth of the LiFePO4 [2].
Fig.2 (b) shows the cycle capability of the LiFePO4/C at different current rates, and the cycle number is 5 at every current rate.