This paper analyses the causes of an incident in an aircraft propeller hub.The aluminum alloy propeller blade hub was detached from the plane bearing one of REPLACEMENT COMB ATTACHMENTS its two blades with the other one being jettisoned away.Stereoscopic examination of the fractured hub revealed that it was initially cracked by fatigue, with the cr
For single-rotor helicopters Scissors there are special flight modes, when tail rotor (TR) is under significant inductive influence of vortical wake of main rotor (MR).Inductive influence of vortical wake of MR can provoke essential changes in flowing of TR and its aerodynamic characteristics comparing to isolated rotor.In this case increase of tai
ObjectiveTo interrogate the pathogenesis of intrauterine growth restriction (IUGR) and apply Artificial Intelligence (AI) techniques to multi-platform i.e.nuclear magnetic resonance (NMR) spectroscopy and mass spectrometry (MS) based metabolomic analysis for the prediction of IUGR.Materials and methodsMS and NMR based metabolomic analysis were perf
The purpose of the article is to describe some genre and stylistic features of the 18th-century regional report, or donosheniye.The research is also focused on the semantic history of the term donosheniye reflected in the legislative acts of Delaware the 18 th century that regulated the language style of regional clerical work and determined the ma