作者: Yunchuan Yang , Liang Wang , Yan Feng
DOI: 10.1016/J.POWTEC.2015.10.050
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摘要: Abstract Fractal dimension is an important parameter to characterize size distribution and shape features of particles. However, it still remains unclear whether the fractal dimensions measured with different methods for same particles will have identical results, or similar quantitative relationship exists between D 3 2 1 as stated in product–sum theorem. Silicon dioxide potassium feldspar were selected PDS measurements 2DSPI extractions this paper. By introducing concept size, , are defined a unified way, their relationships obtained under assumptions including The two fractional mathematical models three new algorithms power spectrum method presented paper provide solutions problems encountered measurement dimensions. Gauss–Newton iterative R–R superior existing fitted method. four been verified both experimentally by computational models. results show that among rational valid.