The electric field effect in ultrathin zigzag graphene nanoribbons containing only three or four zigzag carbon chains is studied by first-principles calculation
On the basis of research method in FTIR imaging, we made a heterogeneous thin film of isotactic polypropylene(i PP) that contains a few large spherulites(~150
For many dam projects in China, the 50-year designed life time is coming to an end. It is urgent to study the theory and method to evaluate the dam service life
The effect of benzimidazole units on thermal imidizaiton was studied when they were introduced into the main chain of poly(amic acid)(PAA). The thermal imidizat