أرسل هذا في رسالة قصيرة: Effects of Nb-doping on the micro-structure and dielectric properties of (Bi<inf>0.5</inf>Na<inf>0.5</inf>)TiO<inf>3</inf>ceramics

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