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The grain size at the surface appeared to remain constant with increasing F concentration.Fig. 2 SEM images showing surface morphology of (a) SnO2 and (b) FTO films Fig. 3 XPS spectra of Sn 3d level measured for FTO films Fig. 4 Composition of FTO films with different F concentrations The elemental composition of the FTO samples was determined by XPS (Figures 3 and 4).
This was due to the fluorine atoms acting as donor-type impurities and increasing the number of free electrons.

The results of compositions determined for a number of SiCN fibers grown at 1650°C are depicted in Fig. 4.
In the cubic SiCN, the interplanar spacing was 0.655nm, and the grain was growing along [100].

At time 0, all values of number were zero without HCHO passed.
However, the grain diameter of 5# is different apparently.

This radiation model considers the radiant heat exchange between gas and grains.
Table 1 Calculation equations of in the boundary item Reynolds number turbulent intensity turbulent energy turbulent energy dissipation rate Formula Where, is inlet velocity, l is turbulent flow length, and l=0.07L, the character length L is diameter.

Through analyzing changes of the varistor characteristic values before and after the aging test, this paper summarizes out a number of laws to judge the aging degree of MOA, especially the changes of resistive fundamental and harmonic current after aging.
C represents grain boundary capacitance.

Formed melt zone correspond to fine grain mixture of (Ti, Ta) solid solution.
The numbers of deformation markings in the form of bands of localized flow oriented into nickel matrix were observed at the interface of welded joint (fig. 2 b).

It may appear from Table. 1 that a large number of fine ore grain graded distribution in 0.037 ~ 0.037 mm, the productivity and the iron grade are 37.95% and 35.52%.

Introduction With the oilfield exploratioin development, the number of water injection wells is increasing, and the internal corrosion problem of water injection tubing is becoming more and more serious.
Fig. 3(c) shows the non-aluminized N80 sample, the surface of which is a loose corrosion product film grain, and the local product film is peeled off to expose the substrate[6], showing obvious local corrosion characteristics as shown in Fig. 3(d).

It should be added that previously, there has been observed an increase in a number of scientific works applying to other zinc-based alloy coatings, e.g.
The nodular-grain morphology of the surface is the mapping of non-treated Zn-Ni coating structure.

Division into districts of titanium magnetite ores by the size of a dissemination of grains of a titanomagnetite: horizon +160m, Northern pit In Figures 3 and 4 the microstructures of ore pieces of the Western and Main open-cast mines of the Gusevogorsky deposit are presented [6].
The shooting mode was step-by-step with interval ΔB = 0.05 T, the exposure value for each field was 2 seconds, the number of measurements (points) on each value of the field was 5, scan the field was ± 2 T, the sample temperature was 300K.