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These methods have been utilized in a number of well-known thermoelectric materials (Bi2Te3, Co4Sb12, SiGe, PbTe, CsBi4Te6, NaPb18-xSnxSbTe20, In4Se3-d) [1] which were sintered in the form of bulk materials due to the trend of creating cheap materials for industry.
Pure silicon has a lower thermal conductivity than the boron-doped Si sample due to the fact that the number of charge carriers and, as a consequence, contribution of the electron subsystem to the thermal conductivity is larger in the former sample.
Properly compacted material should be characterized by high values of electrical conductivity, as it is composed of larger grains and has a lower porosity.
Increase of the number of charge carriers enhances the electronic component of the thermal conductivity.
Variation of these parameters can lead to the increase of the contribution of the electronic subsystem to the thermal conductivity on the one hand and to the enhancement of phonon scattering on disordered structure, grain boundaries and atomic defects on the other hand.

In fluid mechanics, the Reynolds number characterizes the transition from straight to wavy interface.
Cowan et al. [1,2], introduced the following Reynolds number, Rt, for the explosive welding: Rt = (ρa+ρb) Vc(tran.) 2 ⁄ 2(Ha+Hb)
Reynolds number 8.7 is obtained for Ti/S.S. combination [1,2].
Grains near the interface are generally elongated parallel to the impact directions due to plastic deformation [1- 3].
It is seen in Fig. 4a-4d that grains in the S.S-side of bonded clads would be more refined with explosive loads and this refinement increases toward the interface.

A new generation of EH40 shipbuilding steel belongs to low carbon, micro alloy, fine grain and high strength steel [1].
Table.6 Tensile properties of EH40 (normalizing) Kinds Direction Numbers ReL/MPa Rm/MPa A80mm/% Z/% Normalizing Sample Transverse 12-1 385 485 36.5 79.0 12-2 380 480 33.5 77.0 12-3 365 480 35.5 77.5 Average 377 482 35.2 77.8 Longitudinal 22-1 365 480 36.0 81.5 22-2 360 475 36.0 80.5 22-3 370 475 36.0 82.0 Average 365 477 36 81.3 (a) transverse (b) longitudinal Fig. 2 Tensile properties of EH40 (normalizing) Impact properties.
Table.7 Impact energy of EH40 (no normalizing) Kinds Direction Numbers Impact energy Notch shape -20℃ -40˚C -60˚C Rolling samples (no normalizing) Transverse 11-1 191 181 174 V 11-2 194 170 143 V 11-3 204 201 159 V Average 196 184 159 Longitudinal 21-1 280 238 208 V 21-2 245 277 201 V 21-3 203 263 261 V Average 243 259 223 (a) transverse (b) longitudinal Fig.3 Impact energy of EH40 (no normalizing) The low-temperature impact energy of samples is more than 250J at -20˚C,-40˚C and -60℃, the maximum can reach 374J (shown in table 8).
Table.8 Impact energy of EH40 (normalizing) Kinds Direction Numbers Impact energy Notch shape -20 -40 -60 Normalizing sample Transverse 12-1 319 343 265 V 12-2 313 250 304 V 12-3 308 345 264 V Average 313 313 278 Longitudinal 22-1 374 358 347 V 22-2 333 340 327 V 22-3 351 342 329 V Average 353 347 334 (a) transverse (b) longitudinal Fig.4 Impact energy of EH40 (normalizing) Influence of normalizing process on EH40.
Normalizing treatment can eliminate rough widmanstatten structure and unbalanced black organization and also refine the grain, that improves steel plate’s impact performance greatly [7].

(1) r(r) is the atomic pair density function (PDF) and ρ0 is the average number density.
In the present study, the average number density ρ0 of samples was estimated from the slope of the reduced PDF G(r), which behaves like -4πrρ0 at the low-r region [7].
The site occupancy of each atomic position was fixed so as to reproduce the number density calculated from the experimental G(r).
Raney Ru is the aggregates of fine crystallite of hcp-Ru with the grain diameter of about 4 nm.
In the cases of Raney Ru.88Ni.12 and Ru.77Ni.23, the grain diameter decreases as a function of Ni content and corresponding SAD patterns indicate more diffuse nature.

In this paper, Continuous phase flow field is described by k-ε double-equation turbulence model; particle phase is seen as dust particles because of the small size of air, it is described and tracked particles of transfer movement in the roadway by DPM methods [3-7]: (1) Averaged equations: (2) Turbulent pulsation kinetic energy equation: (3) Turbulent pulsation kinetic energy of dissipation rate equation: (4) Formula (1) to (4): k is turbulence energy; ε is turbulence energy of dissipation rate; Gk is turbulence energy from laminar speed gradient; Gb is turbulence energy from buoyancy; YM is the transition from the spread of volatility in compressible turbulent; C2，C1ε are constant, C2=1.9, C1ε=1.44; δk, δε is respectively turbulence Prandtl number of ε equation and ε equation; σk=1.0, σε=1.2; Sk, Sε is turbulent energy of user defined Particle in X direction
forces equilibrium: (5) Formula (5): u is continuous phase speed; up is particle speed; μ is continuous phase energy viscosity; ρ is continuous phase concentration; ρp is particle concentration; dp is particle diameter; Fx is other forces, such as gravity, Magnitogorsk Ruth force, Sergey shavlo mann force and so on; FD(u-up) is unit mass drag force of particle, , , For spherical particles，In certain Reynolds number range, a1, a2 and a3 are constant.
Physical Model and Boundary Conditions This model is a cuboid area: length×width×height=15.0m×10.0m×3.2m, there are ten hydraulic supports, the hydraulic supports number are 1#~10# from air inlet to air outlet; each hydraulic support width is 1.5m; the height from hydraulic support’s upper beam to plate is 3.0m; the distance from coal wall to posterior scraper transport front is 9.5m.
The boundary condition of the numerical simulation and the parameters of the dust source: inlet speed in fully-mechanized caving face is 1.2m/s, dust particle diameter distribution is Rosin-Rammler, the minimal grain diameter is 2.185×10-5m, the maximal grain diameter is 0.85×10-6 m, the medium grain diameter is 4.57×10-6m, the distribution parameter is 1.77, dust producing strength is respectively 0.032kg/s, 0.016kg/s, 0.021kg/s when shearer in coal cutting, hydraulic support moving and coal drawing, the tracking times is 3200.

Moreover, the particles become refined, and the number of defects decreased.
The number of coarse Al3Ti particles obviously decreases.
Hence, the second phases are easy to precipitate around the dislocations and grain boundaries where the ability of atom diffusion is stronger.
Subsequently, the second phases will grow at dislocations and grain boundaries along the easy growing direction and form petal-like Al3Ti.
Zhang, Effect of strain-induced precipitation on the low angle grain boundary in AA7050 aluminum alloy, J.

Moreover, the penetration depth of an electromagnetic wave (defined as the depth at which the field intensity reduces to 1/e, e being the Neper constant) strongly depends on the orientation of the electric field with respect to the wood grain, because wood is an anisotropic dielectric.
The potentiality of the method is shown as a support to traditional techniques, in particular to perform a screening of the decay before making an invasive diagnostic survey, in order to minimize the number of drills and to help in interpreting the results.
The second sample is another Norway spruce beam with a simulated insect attack, consisting in a number of holes (Φ 5 mm) drilled up to half of the depth, with a density of 15% of the surface on the first third, 30% on the second third and 60% on the last third (Fig 4).
Fig. 5a, referring to longitudinal polarization (electric field parallel to the grain) discriminates very well the undamaged half beam from the drilled one, also correctly detecting the “decay” density.
“Innovative techniques for sub-surface investigations”, Materials evaluation, Vol. 69, Number 1, pp 89-96, 2011

Thus an appropriate amount of ferrite and a large number of retained austenite are a prerequisite with good plasticity for TRIP steels.
In the annealing process of TRIP steels, the annealing temperature and aging isothermal heating process are the most important part, which determines the retained austenite grain size, volume fraction and carbon content.
The stability of retained austenite for high carbon content is high and the continuous phase transition also occurs even under high strain resulting in improving ferrite number of dislocations.
Thus, at the meantime of the bainite lattice reconstruction, a large number of carbon atoms diffused into the adjacent austenite and carbon supersaturation in bainite decreased significantly.
Some isolated very fine grains of martensite were also present in the microstructure.

There are a number of definitions of adhesion; in principle, they can be divided into fundamental – expressed by the valence forces between the particle surfaces – and performance adhesion which can be described as the result of destructive types of testing.
From the practical perspective, there are several methods used in Europe today [7]; EN 12697-11 specifies three harmonized test methods besides the national test procedures: (a) Rolling-bottle test; (b) Static tests (of coated aggregate grains in water without circulation) and (c) Boiling water test.
For this reason same number of specimens was covered on the envelope of the cylindrical specimen by PVC wrapping and aged by the same conditions.
Basic characterization of used aggregates Quarry Mineralogy Short description Markovice Amphibolite Fine-grained metamorphic mineral, grey color.
Libodřice Amphibolite Medium grained mineral partially honeycomb formed with shiny particles, grey color Litice Spilite Extrusive, metamorphic mineral of green-grey color.

The greater number of smoothed portions on the surface of the silicon wafer indicated that the fullerenes provided the same polishing ability as that of the abrasive grit.
Using this temperature we were able to fabricate a wheel with sufficient strength at the grain volume percent of 25vol%.
This led to a decreased number of contact points among aluminum particles.
We were able to fabricate the wheel with the grain volume percent of 25vol%, as shown in Fig. 3.
That contact was induced due to the unstable rotation of the wheel holder because of the wheel grazing that the small grain depth of cut in finer abrasive grit provides.