أرسل هذا في رسالة قصيرة: Optimization of prominent and panoramic isotropic-material structures for energy absorption through volume fraction and graded feature

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