Now showing items 21-30 of 4023
Infuěncia do relevo na produtividade e custos do harvester
Among the several variables that influence timber harvesting is the slope, which influences the productivity of forest machines. In this experiment the harvester was evaluated technically and economically while cutting and ...
Evaluación de costo-efectividad de la vacuna anti-rotavirus en Chile
Background: Cost effectiveness studies are essential to assess the real value of interventions with preventive or therapeutic objectives. Aim: To assess the theoretical costeffectiveness of a vaccine against rotavirus ...
Using ecological thresholds to evaluate the costs and benefits of set-asides in a biodiversity hotspot
(Amer Assoc Advancement Science, 2014-08-29)
Ecological set-asides are a promising strategy for conserving biodiversity in human-modified landscapes; however, landowner participation is often precluded by financial constraints. We assessed the ecological benefits and ...
Análise do custo-benefício de sistemas de cobertas em edificações comerciais para o clima de Natal/RN visando eficiência energética
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Arquitetura e UrbanismoConforto no Ambiente Construído; Forma Urbana e Habitação, 2009-02-26)
This research consists in studying the influence of the various type of construction systems of roofs with their energy efficiency as well as on the cost benefit for the commercial buildings on the temperatures condition ...
Avaliação econômica da alimentação de tilápias em tanques-rede com níveis de proteína e energia digestíveis
We evaluated the economic responses of Nile tilapia in the final stage (450 to 800 g) fed diets containing five levels of digestible protein (DP): 20, 23, 26, 29 and 32% and two digestible energy levels (DE): 3,000 and ...