أرسل هذا في رسالة قصيرة: Microstructural Characterizations and Radiation Shielding Quantities of Rice Husk Ash-Based Self-Compacting Concrete and Its Precursors

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