Now showing items 31-40 of 112
Contribution of incident solar radiation on leaves and pods to soybean seed weight and composition
(Elsevier Science, 2016-07)
The weight and composition of soybean seeds (Glycine Max L. Merrill) depend on changes in carbon and nitrogen assimilate supply during grain filling. Soybean pods and seeds are green, evidencing their capacity to capture ...
Effect of Alloying Elements on Thermal Diffusivity of Gray Cast Iron Used in Automotive Brake Disks
The purpose of this work was to experimentally investigate the thermal diffusivity of four different gray cast iron alloys, regularly used to produce brake disks for automotive vehicles. Thermal diffusivity measurements ...
Análise estatística das emissões de CO e HC produzidas por gases da exaustão veicular oriundos de gasolina, GNV e mistura álcool/gasolina
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Engenharia MecânicaTecnologia de Materiais; Projetos Mecânicos; Termociências, 2009-07-13)
The vehicles are the main mobile sources of carbon monoxide (CO) and unburned hydrocarbons (HC) released into the atmosphere. In the last years the increment of the fleet of vehicles in the municipal district of Natal-RN ...
Concretos com misturas de agregado residual de construção e demolição (RCD) e pozolana, com ênfase na carbonatação
(Universidade Federal de Santa MariaBrasilEngenharia CivilUFSMPrograma de Pós-Graduação em Engenharia CivilCentro de Tecnologia, 2017-12-12)
Among the numerous environmental impacts caused by the various segments of the economy, civil construction stands out as one of the sectors that consumes the most natural resources and generates emissions to the environment, ...
Leaf anatomical traits are correlated with tree dominance in a Neotropical deciduous forest
Deciduous forests from the neotropics are one of the most endangered forest types in the world due to the exploitation of their natural resources by mankind. Many aspects of these ecosystems have been studied; however, ...
Lubricating coating prepared by PIIID on a forming tool
(Iop Publishing Ltd, 2012-01-01)
In this work, the performance of a-C: H films produced by the hybrid Plasma Immersion Ion Implantation and Deposition technique as lubricating layers for a steel forming tool has been investigated. Hardened steel (AISI M2, ...