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As the temperature grows,TiO2 crystal became better and anatase(101) plane diffraction intensity is stronger.This suggests that increasing reaction temperature do not cause abnormal growth, TiO2 grain size is more complete and the number of TiO2 introducted to bentonite clay interlayer increases, however, to a certain extent, cation exchange capacity of bentonite reduces, which is harmful to the exchange of TiO2 and hexadecyl trimethyl ammonium bromide.
When the quantity of butyl titanate is 5ml and the reaction temperature is 50℃, With the increase of reaction time, Heating makes that the free water of the inner surface of and interlayer water rapidly vaporize and escape, which will promote the formation and the structure of space, with the extension of heating, less moisture can escape, the number of gap reaches maximum; Continue heating, the gap and the channel number is not only no longer increases, but the temperature of the sample increases, space and channel structure become "soften" , the quantity also gradually reduce, the intercalating process of TiO2 particles weaks due to the heating time is long,.
Table 1 For different washing times, degradation of absorbance Washing times first second third fourth fifth degradation of absorbance 0.342 0.434 0.496 0.943 1.486 As shown in Table 1, with the washing number increases, the absorbance of intercalated photocatalyst and the degradation effect of the former three times is stable.
TiO2 loss more, degradation effect reduce and absorbance rise with the increase of the washing number.
TiO2 loss more and degradation effect reduce with the increase in the number of circulating degradation.

Introduction Natural pumice concrete is a kind of complex porous material, and its interior structure contains a large number of irregular, and cross dimension aperture gap.
The position of the peak is related to the pore size and the area of the peak is related to the number of pores with the corresponding pore size.
Fig. 7 shows the distribution of the T2 spectrum of air-entrained natural pumice concrete after 200 numbers of freeze-thaw cycles.
Analysis of NMRI Fig. 4 shows the results of the NMRI of the air-entrained natural pumice concrete after 200 numbers of freeze-thaw cycles.
The area with bright spots on both sides is small, while a small number of bright spots are large.

AE recorded on the surface of a rotor blade during its loading can be considered as a superposition of a sufficiently large number of primary AE impulses from various emitters, which are randomly distributed over time, and can be represented as: εt=ixiFt-ti
The epicenter of such cracks is formed due to grain cleavage at a depth of about 5μm from the surface of the feather material.
Then AE emission signals were received, the number of signals was determined and compared with the number of signals of a defect-free rotor blade, which was installed in the vibrating stand in the same section in the clamping device.
The values of the total AE count N and number of loading cycles n were recorded on the digital indicator AE-103, while the speed of count Ń was recorded by a self-recorder H-306.
In Fig. 3, the numbers indicate the number of blades that did not collapse in the corresponding loading conditions.

Heavy metals pollution in agricultural soil has serious negative influence on human health due to ingestion of food grain grown in contaminated soils[6,7].
The layout and number of soil sampling points were determined based on land use patterns and plots area.
In soil sampling process, number and position of soil samples were based on land use patterns and plots area.
Dynamic of heavy metals in wheat grains collected from the Liangfeng Irrigated Area, Beijing and a discussion of availability and human health risks.

The lithology is mainly composed of purplish red glutenite, fine grained sandstone, siltstone, mudstone mixed in pyroclastic rock; the strike of the strata toward NNE and tendency is about 110°, dip angle is 4°～10°, which exposed about 1500m width (Refer with: Fig. 1). 3.2 Structures Faults are the main structural features in the ore field, with their main strikes are NE and NW trending.
Because of a large number of SiO2 components in ore-bearing thermal fluid separation, the fluid acid becomes weaker, the concentration proportion of Ca and F in fluid also increased.
Afterwards, because of the multi-pulse stage in metallizing period of ore-controlling structure and residual ore-bearing thermal fluid’s pH, Eh change repeatedly, then the SiO2 and CaF2 in ore-bearing thermal fluid crystallize alternatively, and form fluorite or containing quartz the disseminated-veinlet structure ore, which cut, corrode and replace the light color, fine-grain, allotriomorphic main ore body been formed.
In the late ore fluid evolution, because of a large number of SiO2 and CaF2 components separation, ore-forming components in ore-bearing thermal fluid greatly decreased; under these conditions of riching in CO2 and O2 near surface, Ca goes into deep residual ore-bearing thermal fluid.

Also in [3], using bottom ash sample from the same power plant showed that the grain size distribution of bottom ash sizes occurred in a range between 0.03 and 2.00mm.
The result of the grain size analysis by [4] indicated that Tanjung Bin coal bottom ash is distributed from fine gravel to fine sand with a higher percentage of coarse sand particles satisfying the requirement for lightweight fine aggregate given by BS 3797:1990 and ASTM C 330-89 at the lower bound.
There are a number of factors that might have contributed to this phenomenon, one of which is the water content.
This the author attributed to a number of factors which are: the aggregate to cement ratio became wide, and the cohensionless nature of bottom ash.

The practice of machine-building plants shows that the main defects of carburized cases include retained austenite, excess globular carbides and carbide network, banding of structure, decarburization, oxidation of grain boundaries.
Hardness numbers were converted to HRC hardness numbers.
Analysis of microstructures showed that quenching from 760-770 °C does not correct overheating of the core, which results in formation of a rather coarse-grained structure.

These technologies for improving structure include treatments of liquid alloys in order to refine the grain and the internal structure of dendrites, and the treatments to change eutectic morphology.
In the same time, the elements used within the technology structural improvement of aluminum alloy base, present a number of problems with recycling.
AlCu 4.20 0.05 0.19 0.01 0.05 0.01 0.05 0.01 0.01 0.01 0.01 95.43 The first composition is a hypoeutectic silumin which for structural improvements requires both grain refinement and eutectic modification.
As the experimental measurements have revealed, mechanical vibration causes the reduction, even elimination of the degree of undercooling due to the increase of germination rate by forming larger clusters and a higher number able to act as nucleation.

The shape and dimension of notched specimen in detail (unit:mm) The materials are heat treated as described in Table 1 in order to provide more malleability and ductility in Material A, to refine the grain structure and to create more homogeneous austenite (γ) structure in material Q and to reduce the brittleness imparted by hardening process in materials T1 and T2.
The specimens were produced to the shape and dimensions shown in Fig. 2, the notch R1 (ρ) with a stress concentration, α ≈ 2.762, calculated from the following equation [3]; α = 1 + [2(1 + υ)/(3 + υ)][(d/ρ) 1/2 ] (1) In this case; υ = 0.3, d = 5 and ρ = 1 The etching processes have been employed before a hardness number is measured using a Vickers Hardness tester at 1.96N load.
Fig. 3(a) shows S-N diagram, which is the relationship between stress amplitude, σa and the number of cycles to failure.
In material Q the crack was initiated due to the existence of inclusions and voids within grain structures which caused lack of fatigue strength [8,9].

The basic heat transfer equation is: ( ))( )()( )()()( W 2 xTT xurxc xNux dx xdT p − ⋅ = ρ κ , (2) where Nu represents the Nusselt number, κ the heat conductivity, cp heat capacity, u(x) velocity of the gas, r reactor tube radius and ρ the density of the gas.
The temperature dependent Nusselt number and heat capacity were calculated for each temperature T(x) using data given in [3].
In comparison with a coarse grained YAG:Ce reference sample (shown in Fig. 5a), which has its maximum emission at 550 nm, a blue-shift of the peak maximum of 20 nm is observed.
This deviation between the nano-powder and the coarse-grained YAG can be attributed to a different crystal-field of the host lattice acting on the Ce.