In this paper, machining aeronautical aluminum alloy AA2024-T351 in dry conditions was investigated.Cutting forces, chip segmentation, and built-up edge formation were analyzed.Machining tests revealed that the chip formation process depends on cutting conditions and tool geometry.So continuous and segmented chips are generated.Under some cutting c
This paper studies four patterns for the maneuverability of robotic dolphins: Food Service:Wholesale Lots turning with flapping flippers, turning with swing flippers, turning with head offset, and turning with head-flipper coordination.Turning maneuverability is one of the important evaluation indexes for the performance of underwater bionic robots
Forcipomyia taiwana is an irritating hematophagous midge that preferentially attacks humans and affects leisure industries in Taiwan.Understanding the female reproductive biology of such pests would facilitate the development of pest control strategies.However, knowledge about oogenesis in the genus Forcipomyia is unavailable.Accordingly, we examin
Gelochelidon nilotica and Sterna hirundo are two sympatric breeding species.The mitogenomes of G.nilotica and S.hirundo are 16,748 bp and 16,707 bp in size.Both two mitogenomes reveal the same gene order and genomic organization to that of typical avian mtDNA.The first conserved blocks with a interrupted poly-C are present in the two species contro
Introduction: Identification of an individual is a prerequisite for certification of death and for personal, social, and legal reasons.The study of lip prints (cheiloscopy) was thought of as a method of identification of a person.It is safe to assume that cheiloscopy, Backdrops in its present stage of development, has become a means of criminal ide