This paper first derives the joint orientation matrix for beam-column elements in details,indicating that the joint orientation matrix is still based on the assumption of small rotations around the three coordinate axes,which is inconsistent with the statement of"an accurate form for large rotations"as mentioned in some referˉences.

Due to the Migration through Range Cells(MTRC)of the scattering points under the condition of large rotation,large dif- ferences lay between range profiles of pulses,which increase the entropy of the average range profile of the pulses and furthermore make the minimization of global entropy of the AR Punable to use as a criteria of range alignment.

Effect of blade bowing and local modification on high-turning angle compressor stator performance;

By using of numerical simulation,the effect of applying boundary layer suction on end-wall to the aerodynamic performance for a van with a high-turning angle and meridional divergence was discussed.

And,the straight going gait and stand still turning gait are planned;furthermore, the maximum stride of the straight going gait and the maximum turning angle of the standstill turning gait are derived.

The experimental study of curved compressor cascades with large camber angles at different incidences shows that the curved compressor cascades establish obvious opposite "C" type pressure distribution along the blade height on the suction section, which helps move the low energy fluid from the two endwalls to the midspan.

To have a better understanding of how air injection slot position affect surface pressure and surface streamline, a detailed experimental investigation has been undertaken in a large camber angle compressor cascade with air injection slot.

The Dilemma effect for coma correction and Trilemma effect for astigmatism correction exist in fifth order aberration of self convergence colour picture tube at large deflection angle.

This method,which is not only adapted to large rotation angle,but also adapted to small rotation angle,has many characteristics,such as relying less on the initial values of 7 transformational parameters,being able to resist errors from observation values,making the calculates results more accurate,et.