We have investigated the photoluminescence (PL) properties of amorphous silicon nanoparticles (a-Si NPs) embedded in silicon nitride film (Si-in-SiN<Subscript>x</Subscript>) grown by helicon wave plasma-enhanced chemical vapor deposition (HWP-CVD) technique. The PL spectrum of the film exhibits a broad band...</subscript>

Reforming China’s grain policy could have significant implications for both domestic and international markets. China has begun to reform its price support policies for several commodities, replacing them with commodity specific area payments. The assessment of policy reform scenarios for...