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It can be seen that there is a wide particle size distribution in porous glass matrix and the grains in porous rutile TiO2 matrix are elongated with the sizes in a range of 1 to 4 µm.
On the other hand, heterogeneous nucleation has a higher energy barrier [10], that is, the energy barrier for nano anatase nucleating on rutile matrix is higher than that for nano rutile nucleating on rutile matrix grains.
Acknowledgments Zhen-Yan Deng would like to thank the financial supports of Shanghai Leading Academic Discipline Project (project number S30105), Pujiang Talent Project (07pj14040), "211 Project" and Innovation Fund of Shanghai University.

Tannin has a large number of phenolic hydroxyl groups, can specific chelating with heavy metal ions.
Starch is the major component of cereal grains, occupying 90% of the dry weight of cereal grains.

The film consists of very loosely packed globular highly porous grains with size ranging from 200 to 400 nm formed by the aggregation of two or three primary particles.
The surface morphology of a ITO annealed at 500 °C (Fig. 1 b) is different, the particles aggregates together to form large clusters with sharp grains with size ranging from 60 to 80 nm.
In this figure is evident the effect of number of layers deposit and the thermal treatment in the transmission curves of the coatings, whose were measured in the UV-VIS-region (190-1000 nm).

The number of wetting-drying cycle is 0,1,5,10,20,30. 3.
As fine grained soil, the strength of loess provide mainly from cohesion, soluble salt such as carbonate plays an important role, so the wetting-drying cycles lead to a significant reduction in cohesion and shear strength.
The change of void ratio Void ratio is defined as a soil's pore volume divided by volume of dry soil grain, it can be calculated by the share, density, water content of soil sample.

Table 1 Mixture proportions of RPC Group number cement [kg] Silica fume [kg] Coarse sand [kg] Medium sand [kg] Fine sand [kg] Fly ash [kg] Superplasticizer [kg] Water [kg] F20 688.38 206.51 774.53 389.55 178.26 137.68 61.95 163.15 F30 645.64 193.69 774.87 389.72 178.34 193.69 58.11 165.93 F40 607.90 182.37 775.18 389.87 178.41 243.16 54.71 168.39 Weight various components according to the laboratory mixtures, three kinds of quartz powders were first mixed for 2~3 min at low and high speed in mixer.
Steam curing is helpful to improve the flexural strength of RPC. and the addition of fly ash can improve the grain size distribution of binder systems, when the content of fly ash is optimum, density of mixture can be improved greatly[6].
Conclusion The compressive strength of RPC is less affected by curing regimes, under room temperature curing compressive strength of all groups were more than 82 MPa, and the addition of fly ash can improve the grain size distribution of binder systems, to a certain extent, improve the workability of the RPC, so it’s feasible to use RPC containing fly ash for cast-in-place reinforced concrete member.

In recent years, a large number of researches have been applied about the preparation of nano- hydroxyapatite as well as porous hydroxyapatite ceramics by home and abroad scholars [1], [2], especially(in particular the porous hydroxyapatite materials.
The preparation of HA powder and Mg powder mixed in accordance with a certain proportion with compression of 200 MPa pressure for 30s formed system in the diameter of 18 mm and a thickness of 3mm cylindrical compact in the high-temperature sintering furnace insulation 1-3 in the 1200 ℃ MAGNESIUM-hour ultrafine-grained porous hydroxyapatite. 1.2 Materials hemolytic rate and cytotoxicity test.
(a) (b) Figure 1 SEM micrographs of ultrafine-grained porous hydroxyapatite containing Mg (a) fracture morphology (b)crystal morphology 20 40 60 80 100 0 100 200 300 400 500 600 700 Intesity 2 Theta HA MgO Figure 2 The XRD patterns of ultrafine porous hydroxyapatite crystals containing Mg 2.2 Blood compatibility test.

The 18.5 mm × 11.5 mm faces were aluminized, while the other faces were polished using an abrasive paper with #800 grain.
In either diffusion time, some intermetallic layers with different contrasts were observed as shown in the figure by numbers.
It is thought that the difference in color of oxidized surface in Fig.3 is attributed to the difference in grain size of TiO2.

Magnetoresistive sensor prototypes were designed on the base of an optimized magnetoresistive Co50(Al2O3)50 composite films Introduction Co and dielectric components (SiO2, Al2O3) containing film composites, known as the granular materials, exhibit a number of interesting macroscopic properties like giant magnetoresistance [1] and giant Hall effect [2].
Dependence of average grain size of Co-Al2O3 films vs. concentration of metallic phase Fig. 3.
The latter can be related to the different character of the interfaces between the grains of Co and dielectric matrices and, in particular, to the formation of Co-Si layer on the surface Co, which significantly modifies the physical properties of the metal [10].

Introduction Grain-oriented silicon steel is widely used as core materials in electrical machinery.
MnS is one of the most popular inhibitors used in GO and Hi-B grain-oriented silicon steel.
The number of large primary MnS particles increases with the deformation temperature decreasing, and the distribution of MnS particles precipitated during hot deformation was strongly dependent on the deformation temperature.

Prior to this, a number of regulations have been adopted to restrict unauthorized access to those confidential personnel data within the computer, which is called discretionary access control.
Hence, the need to further explore how to effectively implement mandatory access control in a more fine-grained lower raised.
Obviously, Cr, Cw ∈ (L, H),to apply fine-grained access control.