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Research At single-frequency polarization laser sensing four (the number of parameters of the Stokes vector) detection channels may be used simultaneously.
Theory, measurements, and application, Academic press, International standard book number: 0-12-498660-9, California, USA, 2000
Witt, Size and shape of ice grains in the mesopause region, Int.

LT measurements have revealed the presence of a higher number of long components, all connected with various o-Ps states [1-4].
Inhomogeneous regions and grain boundaries may also act as Ps traps.
Defected sites and mesopores can also form, giving rise to a number of localized o-Ps states.

Large number of studies carried out home and abroad on the effective utilization of sludge dredged.
Grain size test uses laser particle size analyzer.
And lime play the role is opposite, maybe due to chemical reactions occurred about CaO+H2O=Ca(OH)2, Ca(OH)2+ CO2= CaCO3+ H2O, Part of the water is evaporated after hardening, leaving a large number of pores, thus hardening lime soil is small volume density and low intensity.

Layout of monitoring temperature sensors Fig.1 Modeling test of double-row-pipe freezing Table 1 Parameters of modeling test soil water content 31.4% 1st row pipes spacing 0.25m soil initial temperature 20℃ 2nd row pipe radius 0.64m 1st row pipe radius 0.48m 2nd row pipe number 40 1st row pipe number 12 2nd row pipe spacing 0.10m Through the modeling test, the temperature vs time at different measuring point is given in Fig.2 and Fig.3 respectively.
The modelling of the freezing process in fine-grained porous media: Application to the frost heave estimation.

In the field, coarse grained granite was the mainly bedrock, lamprophyre and granite porphyry occurred alternately in it.
The Principle of Smooth Blasting A large number of research papers about smooth blasting mechanism had been published at home and abroad, it has been proved that rock crushing is due to the corporate effects of explosive stress wave and high temperature and high pressure gas [1].
The explosive is number two rock emulsified explosive, the standard is Φ32*L 300mm.

The fuel cell stack is composed by a number of single cells, inside which is the reaction chamber and the fuel chamber.
Fig.1 Composition of the zinc-air fuel cell system Zinc-air fuel cell‘s power is depend on the quantity of the equipped zinc grain.
=32×0.24=7.68 kW (5) As is shown in equation (5), N is the number of single cells.

Epoxy resin with batch number F287ECJM01 and epoxy hardener with batch number 2048232 was bought from Euro Chem-Pharma Sdn.
Ahmad, Nanoscale Investigation of Nb-Doped Cacu3Ti4O12 Grains, Adv.

Where na represents the number of covalent electron pairs on a bond, represents the theoretical bond length of a bond.
Number of covalent electron pairs on the strongest bond In Ref. [7], it was defined that n1 is the number of covalent electron pairs of the strongest bond when a phase lies in a stable state, it can represent the strength of the covalent bond formed by atoms of the phase.
Number of atom state group In Ref. [7], sN was defined as the number of all probable groups of atom state when the bond length difference(the theoretical bond length and the experimental one)DDa≤0.005 nm, it was thought that the bigger the value of sN of the phase, the more stable the phase.
The covalent electron pairs on the strongest bond of Mg2Si is 0.3241, its total forming bond ability is 166.94 and the number of atom state group is 3.
Under the room temperature, the three strengthening phases Mg17Al12, Mg2Si and Al3Fe can all fix the dislocation movement and hinder the grain boundary slipping effectively.

This veneer—rice straw composite board has the natural wood grain on the surface, the content of harmful substances such as formaldehyde is very low.
In addition, with the increase of spreading, just because the number of cement-point increased in unite area, which make the bending force strengthen, and so the bending strength enhanced.

The sand was applied to a grain size of 1 mm.
The number of samples is limited by the test equipment.