Molecular and morphological data supporting phylogenetic reconstruction of the genus Goniothalamus (Annonaceae), including a reassessment of previous infrageneric classifications

Data is presented in support of a phylogenetic reconstruction of the species-rich early-divergent angiosperm genus Goniothalamus (Annonaceae) (Tang et al., Mol.Phylogenetic Evol., 2015) [1], inferred using chloroplast DNA (cpDNA) sequences.The data includes a list of primers for altitude sunscreen amplification and sequencing for nine cpDNA regions

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Reduced Friction and Excellent Anti-Wear Performance of QBe2 Beryllium Bronze against 38CrMoAlA Steel in Pneumatic Downhole Motor under Grease Lubrication

To improve the service life of the newly designed pneumatic downhole motor, a kind of commercially available lithium complex grease was campicon.com used to help avoid the rapid wear-induced failure of the dynamic seal of pneumatic downhole tools in operation.The investigation on the tribological behaviors of QBe2 beryllium bronze and 38CrMoAlA ste

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