أرسل هذا في رسالة قصيرة: Design of a Compact Electromagnetic Undulator for THz Radiation Production

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