Text this: A tribological study of double-walled and triple-walled carbon nanotube oscillators

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