Seventy eight poets of the middle-later Tang Dynasty were divided into six groups and five grades by ZhangWei in his poet comments collection 《the poets Zhu Ke Tu》.

Self-diffusion coefficients of water,propyl glycol(PG),Labrafaccc and Cremophor EL in the hexahydric system comprised of Cremophor EL,soybean lecithin,ethanol,propyl glycol,water and Labrafaccc were measured by the pulsed-gradient NMR method.

Y elastic constants of polycrystalline materials with hexagonal system structure

In hexagonal system, there is 180° secondary rotation twin with(003)as twinning plane and direction as twinning axis.

Brillouin scattering for hexagonal system has arbitrary rotation symmetry about the 6 fold axis of the system.

Study on "Six-relationship" and Design Idea for Large-diameter Pipeline Construction;

The paper mainly discusses such problems as the way of determination of Miller-Bravais index of hexagonal lattice structure,six directions in the dislocation theory and the changes of components in austenization of eutectiod steel.