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   _____   __   __   _    _      ___      _  _   
  / ___//  \ \\/ // | \  / ||   / _ \\   | \| || 
  \___ \\   \ ` //  |  \/  ||  / //\ \\  |  ' || 
  /    //    | ||   | .  . || |  ___  || | .  || 
 /____//     |_||   |_|\/|_|| |_||  |_|| |_|\_|| 
`-----`      `-`'   `-`  `-`  `-`   `-`  `-` -`

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發送短信 : Laminar entrance region flow of Herschel-Bulkley fluids in a circular pipe