أرسل هذا في رسالة قصيرة: Effects of the layers of foundation soil on the seismic response of dikes

  _____     _____     ______     ___     _____    
 /  ___||  |  ___||  /_   _//   / _ \\  |  __ \\  
| // __    | ||__    `-| |,-   | / \ || | |  \ || 
| \\_\ ||  | ||__      | ||    | \_/ || | |__/ || 
 \____//   |_____||    |_||     \___//  |_____//  
  `---`    `-----`     `-`'     `---`    -----`