The quantum conductance of two kinds of carbon nanotube quantum dots (CNQD) composed of (5,5) and (10,0) tubes, namely (10,0)/(5,5)/(10,0) and (5,5)/(10,0)/(5,5) with different quantum sizes, are calculated. It is shown that for (10,0)/(5,5)/(10,0) CNQD, one on-resonant peak at the Fermi energy...

Soil surface mulching is known to be effective in reducing surface runoff, increasing the infiltration of water into the soil and slowing soil erosion. A two-year field experiment evaluated three possible soil surface management practices: (1) conventional treatment, without mulching—the...