Techniques for estimating unknown terms - such as eddy diffusivity and counter-gradient - in atmospheric flow are presented in this study. The methos is also used to identify the source term in atmospheric pollution. The ...

With the main objective to evaluate the hydrological behavior of the vertical mulching in no tillage system, this work have been realized in 2002/2003 and 2003/2004 agricultural years on Latossolo Vermelho Distrófico típico ...

The importance of Brazilian landscapes and the destruction problem are already known. Despite, the worry expressed by the population with the landscapes destination is normally emotional and subjective. The manifestations ...

This research work was accomplished at a Forest Mixed Ombrófila in advanced stage of natural regeneration and that had as objectives: to model mathematical equations to estimate the commercial volume and the shape factor ...

A study was carried out in Canela, RS, including the application of instruments which evaluated the characteristics of the receiving region, the tourist profile, Canela s National Forest evaluation by the tourists the ...

This Ph.D. Dissertation presents contributions to the study of hybrid multilevel systems, analyzing several issues that compose this system, such as: topological variations of the output inverter stage and input rectifier ...

The distribution system is an extremely important part of the energy supply. At the same time, distribution networks, most of them with radial configuration, are much more vulnerable elements compared with transmission and ...

This study was conducted in a farm belonging to Military Brigade in the Itaara county, RS. The main objective was to quantify the nutrient stocks in the soil and the above ground biomass. The second aim was to evaluate the ...

Tree experiments were conducted in Santa Maria end Constantina (State of Rio Grande do Sul- Brazil), objecting to determine the best plant population of type II e III of common bean grown in the season and latter season, ...

Periodically humanity is challenged to discovering new ways to progress, since conventional technologies fatally lose their function at the frontier of a new age. In agriculture the new challenger is get more productivity ...