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Abstract: Ornithopods were the most important group of Cretaceous ornithischians and achieved high levels of abundance and taxonomic diversity. An understanding of the phylogeny, early evolution and diagnosis of the clade is hampered by a shortage of detailed anatomical descriptions of basal taxa. One of the most important basal ornithopod taxa discovered in recent years is Changchunsaurus parvus...
The distance and retail store attraction have effect on consumer shopping action. Recently most relative quantitative modeling study on retail location did not simultaneously consider those factors including traffic network, traffic grade, store attraction and competition based on GIS. This paper aims at these shortages and attempt to integrate above factors and make quantitative analysis about large...
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