أرسل هذا في رسالة قصيرة: Development of novel Nafion/Meso-silicon-oxide membranes doped with phosphotungstic acid for high temperature proton exchange membrane fuel cells

 __   __   __   __   _    _    __   __    _  _   
 \ \\/ //  \ \\/ // | \  / ||  \ \\/ //  | \| || 
  \   //    \ ` //  |  \/  ||   \ ` //   |  ' || 
  / . \\     | ||   | .  . ||    | ||    | .  || 
 /_//\_\\    |_||   |_|\/|_||    |_||    |_|\_|| 
 `-`  --`    `-`'   `-`  `-`     `-`'    `-` -`