Paracoryphagrionidae fam. nov., a pseudostigmatoid damselfly from mid-Cretaceous Burmese amber showing regular series of triangular cells (Odonata: Zygoptera: Coenagrionida)
Sign Up to like & getrecommendations! Published in 2018 at "Cretaceous Research"
DOI: 10.1016/j.cretres.2017.10.005
Abstract: Abstract Paracoryphagrionidae Zheng, Nel and Wang fam. nov., a new damselfly family based on the genus and species Paracoryphagrion deltoides Zheng, Nel and Wang gen. et sp. nov., is described from Burmese amber. Paracoryphagrionidae is… read more here.
Keywords: burmese amber; damselfly; triangular cells; zygoptera ... See more keywords
Crushing Behaviors and Energy Absorption Evaluation Methods of Hexagonal Steel Tubular Columns with Triangular Cells
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15113910
Abstract: Under axial compression, multi-cell tubes are considered more effective than single-cell tubes. Regular hexagonal multi-cell tubes (HMT) were designed, tested, and analyzed by finite element modeling (FEM). The crushing mechanism of the HMT was revealed… read more here.
Keywords: cell; evaluation methods; energy; triangular cells ... See more keywords