Objective To disscuss the surgical procedures of repairing the broad nostril and droopy nasal ala.

Correction of nasal alar ptosis with nasal alar fold incision;

Microsurgical removal of the giant pituitary adenoma via transorbital subfrontal pterional approach;

A new configuration of infrared suppressor utilizing nozzle ejector and rotor downwash is presented,relevant experimental and computational study is conducted on the mixing characteristics inside the new infrared suppressor.

Utilizing a ground test model,an experimental diagnostic study on the infrared suppressor integrating the exhaust system with the tail part of a helicopter has been performed to investigate the effects of ambient air pumping-mixing and rotor downwash on reducing the exhaust system temperature and diminishing the target infrared signature.

Wind tunnel experimental results show that the effect of the upper rotor on the lower rotor is larger than the effect of the lower rotor on the upper rotor in hover.