Machines that pass both rotor and sieve material through straw choppers spread the lost grain over a wider area and often mask visual clues to grain loss. PHOTO: Dan Anderson “A lot of guys run ...

Researchers at The University of Manchester have discovered that the naturally occurring gaps between individual layers of two-dimensional materials can be used as a sieve to separate different atoms.

Aluminophosphate (AlPO) molecular sieves (MSs) are crystalline microporous materials made from alternating PO 4 tetrahedra ...