Different types of flow control valves are commercially available but most are only adequate for high flow rates. These are provided with pneumatic devices to reduce explosion risks in industrial plants. Flow-reduced and low pressure valves are small sized, usually…

Durante o processamento da matéria-prima da indústria sucroalcooleira, gera-se grande quantidade de efluentes com qualidades que impossibilitam seu lançamento em corpos de água sem o tratamento prévio. A biorremediação é usada para decompor resíduos orgânicos até um estado inócuo ou…

Ferroresonance is an electrical phenomenon in nonlinear character, which frequently occurs in power systems containing saturable transformers and single or more-phase switching on the lines for the disjunction of the loads. In this study, the ferroresonance phenomena are considered under…

O presente trabalho teve como objetivo a avaliação da cinética de produção de enzimas celulases pelo fungo Aspergillus niger e da cinética de desativação das celulases. Foi utilizado bagaço de cana-de-açúcar pré-tratado como fonte de carbono na fermentação para a…

This paper addresses the adaptation of the method of classification of unpaved roads developed by Eaton to the field conditions of local roads from the city of Viçosa, Minas Gerais State, Brazil, considering its potential as a support tool for…

The proper structural understanding of a pavement should consider, according to the pavement mechanics, the aspects related to the traffic load, the environment and material properties. When asphaltic materials are used, the stress/strain relationships and the dependencies of load-time and…