After I transfer a mdf file to dataframe , these kind columns are big memory using and can not be used by me. And because of this array dtype is not supported I can not convert dataframe to parquet ...

If you have ever dealt with MatLAB or python ML libraries, you already know where this is going. Otherwise, I'll make things easier for you. A Matrix (pl. Matrices) is a mathematical entity identified ...

A delay-and-sum beamformer for 3D imaging using row-column arrays and written in CUDA is presented and compared to an existing similar GPU-based beamformer written in the MATLAB programming language.