Numerical simulation of welding distortion for aluminum groove structure;

Different grain size and different crystal structure of TiO_2 used as the precursors were investigated,which show that in the same condition,such as the same reactive temperature,reactive time,PH value,Ba/Ti ratio and so on,the grain size and tetragonal structure of barium titanate are different.

The chemical composition of the t itania particles was analyzed, and the effect of processing parameters on the particle crystal structure was studied.

In order to study the difference among hemp xyloid stem,cotton pulp,bamboo pulp and wood pulp viscose filament yarn,the test of morphosis,FTIR spectroscopy,crystal structure,thermotics and mechanical properties were carried out.

Design of the Structure of Cutter Carrier with Optimization for Cutting Plate Machine;

The welding-ability of the 600MW HIP outer-case is briefly analyzed according to the structure and characteristic.

Hydropower is renewable clean energy, which is an important component part of china’s energy structure.

Structure analyses showed that the main phase of alloys belongs to Ce_2Ni_7-type structure,Mg atoms are located only at the laves unit of Ce_2Ni_7-type unit cell,while Co atoms are located only at the CaCu_5 unit.

The structure analysis of alloys showed that all these alloys consisted mainly of the rhombohedral Gd_2Co_7-type structure and hexagonal Ce_2Ni_7-type structure.