Text this: Effect of Bi<inf>2</inf>O<inf>3</inf> content on properties of (Na <inf>2</inf>O, K<inf>2</inf>O)-SiO<inf>2</inf>-CaO-Al<inf>2</inf>O <inf>3</inf>-B<inf>2</inf>O<inf>3</inf> glass system

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