Buscar
Mostrando ítems 51-60 de 325
Actualistic taphonomy of barn owl pellet-derived small mammal bone accumulations in arid environments of South America
(John Wiley & Sons Ltd, 2020-10)
The avian family of barn owls (Tytonidae, Strigiformes) is the most geographically widespread group of owls in the world and one of the most common accumulators of small mammal bone and tooth remains recovered from ...
Clusia hilariana and Eugenia uniflora as bioindicators of atmospheric pollutants emitted by an iron pelletizing factory in Brazil
(Environmental Science and Pollution Research, 2018)
Decolorization and removal of toxicity of textile azo dyes using fungal biomass pelletized
(2018-05-21)
Abstract: Industrialization and other human impacts have placed increasing pressure on aquatic environments, with the generation of large quantities of toxic aqueous effluents containing different substances, such as ...
O processo de redução direta no contexto da descarbonização da siderurgia e a busca por soluções tecnológicas de agentes de recobrimento para pelotas de minério de ferro
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA METALÚRGICAPrograma de Pós-Graduação em Engenharia Metalúrgica, Materiais e de MinasUFMG, 2021-12-17)
The world steel industry is facing a decarbonization challenge never seen before, which requires technical development and substantial financial expenses. A data survey carried out in the first stage of this work showed ...
Life cycle assessment of bagasse fiber reinforced biocomposites
(Elsevier, 2020-06)
This study aims to evaluate the life cycle environmental implications of producing fiber-reinforced biocomposite pellets, compared with sugarcane- and petroleum-based polyethylene (PE) pellets. Life Cycle Assessment (LCA) ...
Metal-insulator transitions in pressed pellets of BF4 - doped poly(3-methylthiophene)
(1997-12-01)
From Electron Spin Resonance (ESR) data in pressed pellets of BF4 - doped Poly(3-methylthiophene) (P3MT) we obtained simultaneously the paramagnetic susceptibility and. the microwave conductivity. We observed a transition ...
Metal-insulator transitions in pressed pellets of BF4 - doped poly(3-methylthiophene)
(1997-12-01)
From Electron Spin Resonance (ESR) data in pressed pellets of BF4 - doped Poly(3-methylthiophene) (P3MT) we obtained simultaneously the paramagnetic susceptibility and. the microwave conductivity. We observed a transition ...
Formation of cubic Li2TiO3 by mechanical activation and its transformation to monoclinic phase: Stability in helium and hydrogen flows
(Elsevier Science, 2017-10-01)
Lithium metatitanate (Li2TiO3) is one of the most attractive candidates as a solid breeder in the blanket of D–T fusion reactors and ionic conductors in lithium-ion batteries. In this work, a new synthesis route, avoiding ...
Cálculo do perfil de temperaturas em uma vareta combustível de reator pwr com seção transversal em formato hemoglobina, por diferenças finitas em estado estacionárioCalculation of the temperature profile in a fuel rod of pwr reactor with cross section in hemoglobin format, by finite differences in steady state
(Universidade Federal do Rio de JaneiroBrasilInstituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de EngenhariaPrograma de Pós-Graduação em Engenharia NuclearUFRJ, 2021)
Avaliação da utilização de diferentes materiais para diminuição da tendência de colagem de pelotas durante o processo de redução direta
(Universidade Federal de Minas GeraisUFMG, 2012-05-02)
The process for obtaining metallic iron by direct reduction of iron ore is very important for the iron making and its technology has developed significantly in recent decades. The formation of clusters by sticking the ...