Scaling laws for grain charge as a function of fugacity have been derived by self-consistently including contributions due to finite grain size, generalized grain capacitance, and near-neighbor effects. Good agreement between the scaling laws and the numerical solution of exact coupled equations is found over a wide range of dust fugacity from tenuous to dense regimes. The effects of these contributions on wave propagation in dense dusty plasmas is illustrated by considering dust-acoustic and dust-Coulomb waves. (C) 2001 American Institute of Physics. [References: 28]
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