Digital environment poses new challenges to the traditional concept of copyright protection.Digital copies Espresso Table of works, new forms of exploitation of copyrighted goods, the impossibility of adequate enforcement of intellectual property rights on the Internet and, in this regard, the reexamination of the role of intermediaries, are just s
Kinetic of copper-sulfate pentahydrate production from scrap copper
The industrial production of copper sulfate pentahydrate (CuSO4.5H2O), from scrap copper and airy sulfuric acid, requires knowledge of the reaction kinetics for analysis and development.The experimental work was intended to determine the effects of different conditions (temperature, pressure, and airflow rate) on the conversion of sulfuric acid wit
Grazing Preference of Dairy Cows and Pasture Productivity for Different Cultivars of Perennial Ryegrass under Contrasting Managements
The objective of this study was to evaluate the pasture performance of different cultivars of perennial ryegrass, two “high sugar” and two standard cultivars, under two contrasting agronomic managements (aimed at either decreasing or increasing water soluble carbohydrates concentration), and their effects on the grazing preference of da
Drivetrain, chassis and tire-soil contact influence on power shift operations in standard tractors
Today, electro-hydraulic gearshift actuation systems offer a wide range of opportunities to optimize power shift behavior and therefore handling comfort of tractors.However, the parameter application process is very time consuming, especially with regard to increasing comfort demands.To reduce the time consumption and to increase the repeatability
Demographic study of a peripheral population of the rare amphicarpic species Scrophularia arguta
Scrophularia arguta (Scrophulariaceae) is a rare amphicarpic annual species with a fragmented distribution in North Africa, part of the Arabian Peninsula, and Macaronesia, with several peripheral populations on the Serving Platters Iberian Peninsula (south-western Europe) as well.The Iberian populations have a disjunct distribution: several endange