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Micro cracks generate a large number of events of a small amplitude while macro cracks generate fewer events but of a larger amplitude.
Experimental Setup The investigated material based on alkali-activated slag (AAS) was consisted of 450 g of fine grained granulated blast furnace slag Štramberk 380 (specific surface area 380 m2·kg-1), 180 g of sodium silicate (water glass) with modulus 1.6, 1350 g of silica sand and 95 ml of water.

To confirm the presence of Ni and NiO grain adhered to crude MWNTs, XRD analysis of the crude MWNTs and the purified MWNTs were conducted.
As is shown in Fig.2(a), the crude MWNTs have a large number of MWNTs with a typical sausage-like structures.

A CPMG pulse sequence with echo spacing of 160 μs and a number of spin echos of 250 was used to measue the transverse relaxation time (T2).
Unlike the gel water, the mesopore water in all the pastes decreased with the hydration time during the long-term age, and the relative content in pure paste was significantly lower than that of blended pastes, which indicated that the outside products produced by cement combined the fly ash grains to form a great amount of mesopores.

Introduction Various kinds of dielectric ceramic for microwave telecommunications, satellite-broadcasting systems and great number of personal communication systems have been developed during last decades [1].
The defects can be minimized by optimizing the grain size distribution of these powder mixtures that in turn can be obtained by a suitable procedure in the grinding process.

From the grain-size distribution, it is seen that both types are medium compacted sands.
Physical specifications of undisturbed silty soil Serial Number Deep (m) Water Content (%) Density (g/cm3) Tao-1 25.3-25.5 17.36 2.161 Tao-2 30.7-30.9 30.83 1.989 Tao-3 34.6-34.8 17.18 2.175 Tao-4 36.6-36.8 23.50 2.063 Huang-5 23.1-23.3 18.55 2.167 Huang-6 16.4-16.6 21.23 2.094 Huang-7 15.4-15.6 19.25 2.135 Huang8 29.6-29.8 22.62 2.014 Chang-9 20.6-20.8 27.84 1.974 Chang-10 16.2-16.4 23.37 2.078 Chang-11 17.6-17.8 19.73 2.057 Chang-12 9.8-10.0 19.90 2.140 Chang-13 26.2-26.4 20.69 2.099 Chang-14 32.2-32.4 26.21 1.974 Effect of Consolidation Ratios on G/Gmax-γ In the tests, two confining stresses,σ3=200kPa and 300kPa, and three consolidation ratios, kc=1.0, 1.5 and 2.0, are employed for the Fujian sand and the Harbin sand.

At the same time, ferrite grain grows rapidly in the high temperature section of HAZ.
Table 9 Hardness test result Test Location Vickers Hardness Number ( HV ) No.

In the beginning, the non-equilibrium phase in samples’ surface was corroded and dissolved, such as alloy and grain boundary glass phase, which was dissolved completely with leaching experiments proceeding.
Acknowledgements This work is supported by Shanghai Leading Academic Discipline Project (Project Number: J51504).

The FPGA has a regular internal array of logic blocks and rich connection resources, which is particularly suitable for fine-grained and high degree of parallelism structural features digital signal processing tasks, such as FIR, FFT.
In the time domain, the finite impulse response filter’s mathematical expressions is (1) In formula(1), x(n) and y(n) express the input and output sequences; the character ‘N’ expresses the number of taps of the FIR filter; y(n) expresses the sample of the first n moments; h(k) expresses the FIR filter’s first k coefficient; x(n-k) expresses the input signal after k taps’ delay.

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.