أرسل هذا في رسالة قصيرة: A STUDY OF THE BED HEIGHT IN A TWO-PHASE FLUIDIZATION: NUMERICAL SIMULATION AND STATISTICAL ANALYSIS

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