EFFECT OF AIR PERMEABILITY ON STABILITY OF SUPERSONIC PARACHUTE

Effect of air permeability on stability of supersonic parachute

A compressible air permeability model is developed to simulate the aerodynamic performance of the supersonic porous canopy.And a single-degree-of-freedom model is applied to analyse the static stability of the parachute.By using this method, the flow structure of the Vases parachute system with big attack angle is obtained.The aerodynamic moment co

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A novel cell-based screen identifies chemical entities that reverse the immune-escape phenotype of metastatic tumours

Genetic and epigenetic events have been implicated in the downregulation of the cellular antigen processing and presentation machinery (APM), which in turn, has been associated with cancer evasion of the immune system.When these essential components are lacking, cancers develop the ability to subvert host immune surveillance allowing cancer cells t

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