The nonlinear dynamic responses of a wire rope under periodic excitation in a friction hoisting system are investigated.Longitudinal excitation experiments of different periodic excitation frequencies are performed.The nonlinear dynamic characteristics of the rope, including transverse, longitudinal, and coupled vibrations, are discussed with time-
Trichomonas gallinae is a geographically widespread protozoan parasite of birds.In this study, oropharyngeal swab samples were collected in Hungary and Romania from 99 columbiform birds, including 76 feral pigeons (Columba livia domestica: 42 kept for racing, 32 with urban and two with rural habitat), four common wood pigeons (C.palumbus), 16 ring
Abstract This paper traces several changes in the pronunciation of unaccented final syllables in Scottish place names.It claims that place names which are lexically opaque are more likely to reflect changes in pronunciation earlier than words the lexical meaning of which is well moen rothbury faucet known.As a parallel, the loss of -l in words like