The growing demand of the steel industry for cheaper and more efficient production processes creates a necessity for new refractory materials. These requirements are written in terms of more robust concretes, with a ...

In a country like Brazil, which has a high incidence of solar radiation, the use of solar energy is an alternative that has been researched and used with many advantages. This paper presents the design, construction and ...

O biogás como está sendo produzido e consumido no Brasil oferece uma gama de oportunidades para as economias das regiões produtoras de grãos e derivados de leita. No oeste do Paraná há diversos produtores, entre grandes e ...

This study had as objectives: investigate the microorganisms that cause subclinical mastitis in meat producing sheep, define cut-off values of two methods of indirect diagnosis, compare cure rates of treatment of subclinical ...