The subject matter of this article is the dynamic characteristics of a composite propeller blade.Determination of the modes and frequencies of natural vibrations is necessary to predict the dangerous resonance modes of aircraft engines and to identify the most stressed local zones of the blade surface.The goal of this study is to develop a verified
Brazil is facing one of its most severe political crises since 2016, with several impacts in its gradual process of democratization.In this context, the main argument in this work is that many of the ghosts that scary the Brazilian society in the Twenty-First century are direct heirs of an unresolved (pre-constitutional) past, whose risks can be st
The article is dedicated to the study of the inter-relation of the concept of the legal system in its contemporary understanding with a number of general phenomena, which are basic for the contemporary theory of state and law.This analysis is provided in the context of historical and legal discourse within which is studied the transformation of the