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1篇 您的检索式：作者名="Sebastian Weeger"

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		题名	作者	年代	出处	被引量
	1	Particle shape characterisation and its application to discrete element modelling显示文摘Increasing importance has been placed on particle shape implementation within discrete element modelling(DEM) in order to more accurately reflect the non-spherical behaviour of the bulk material being handled. As computational resources grow, complex particle shapes are increasingly being modelled as the associated simulation times become more realistic to provide timely solutions. The objective of this research is to assess particle shape descriptors through a digital image segmentation technique, and to further implement particle shape parameters into generation of corresponding irregular shaped DEM particles. Separated and lumped particle images were analysed and reconstructed through the development of two distinct methodologies. Subsequently, various particle shape descriptors were obtained using combinations of image segmentation algorithms, including mathematical morphology processing,thresholding, edge detection, region growing, region splitting and region merging. DEM particles were subsequently created using particle shape results obtained above. Shape parameters of DEM particles were then examined and validated against the real particle shape parameters.	Kenneth C.Williams Wei Chen Sebastian Weeger Timothy J.Donohue	2014	Particuology2014，12，1：	4

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