Results 61 to 70 of about 400 (153)

Hidratação de ligantes na presença de matriz e aditivos Hydration of binders in the presence of matrix and additives

Cerâmica, 2007
Ligantes hidráulicos, como os cimentos de aluminato de cálcio e as aluminas hidratáveis, são os responsáveis pelo desenvolvimento de resistência mecânica de concretos refratários (desmoldagem) influenciando também as suas propriedades reológicas ...
I. R. Oliveira, V. C. Pandolfelli
doaj   +1 more source

PEDOTRANSFER FUNCTIONS FOR WATER RETENTION IN THE MAIN SOILS FROM THE BRAZILIAN COASTAL PLAINS

Ciência e Agrotecnologia, 2015
Pedotransfer functions (PTFs) are equations used to estimate soil characteristics difficult to determine from other easily obtained ones. Water retention in soil is used in several agronomic and environmental applications, but its direct determination is
Elidiane da Silva, Nilton Curi, Mozart Martins Ferreira, Margarete Marin Lordelo Volpato, Walbert Júnior Reis dos Santos, Sérgio Henrique Godinho Silva   +5 more
doaj   +1 more source

Potential barrier behavior in BiCuVOX materials Comportamento da barreira de potencial em materiais BiCuVOX

Cerâmica, 2011
The BiMeVOX materials appear being high attractive for applications at low temperatures when the ionic conductivity is the determining parameter. The occurrence of many types substitution was confirmed for numerous Me ions, but the greatest interest have
S. M. Gheno, P. I. Paulin F., M. R. Morelli   +2 more
doaj   +1 more source

Barriers related to screening examinations for prostate cancer Barreras en relación a los exámenes de rastreo del cáncer de próstata Barreiras em relação aos exames de rastreamento do câncer de próstata

Revista Latino-Americana de Enfermagem, 2011
With the aim of describing barriers to screening for prostate cancer, a domicile survey was carried out covering 160 men of a Family Health Strategy (FHS) area. Slightly over half had undergone the examination.
Elenir Pereira de Paiva, Maria Catarina Salvador da Motta, Rosane Harter Griep   +2 more
doaj   +1 more source

Processo de hidratação e os mecanismos de atuação dos aditivos aceleradores e retardadores de pega do cimento de aluminato de cálcio Hidration process and the mechanisms of retarding and accelerating the setting time of calcium aluminate cement

Cerâmica, 2007
Um dos aspectos principais para o desenvolvimento de concretos refratários está no aprimoramento dos conhecimentos sobre o cimento de alta alumina ou cimento de aluminato de cálcio (CAC), já que esse ligante é o mais utilizado nesta classe de produtos. O
J. R. Garcia, I. R. de Oliveira, V. C. Pandolfelli   +2 more
doaj   +1 more source

Caracterização física, química, mineralógica e micromorfológica de horizontes coesos e fragipãs de solos vermelhos e amarelos do ambiente Tabuleiros Costeiros Physical, chemical, mineralogical and micromorphological characterization of cohesive horizons and fragipans of red and yellow soils of Coastal Tablelands

Revista Brasileira de Ciência do Solo, 2008
O objetivo do presente trabalho foi avaliar física, química, mineralógica e micromorfologicamente solos vermelhos, amarelos e acinzentados coesos em três toposseqüências na região dos Tabuleiros Costeiros do sul da Bahia e norte do Espírito Santo ...
Marcelo Metri Corrêa, João Carlos Ker, Vidal Barrón, José Torrent, Nilton Curi, Thiago C. Pereira Torres   +5 more
doaj   +1 more source

Genesis and Evolution of Ferruginous Duricrust from the Barreiras Formation, Southeast Brazilian Margin

Genèse et évolution des cuirasses ferrugineuses dans la formation Barreiras, marge sud-est du Brésil La Formation Barreiras comprend des séquences continentales et marines synchrone à l'ouverture de l'Océan Atlantique. La plupart des études sur la Fm.
openaire   +2 more sources

Characterization Lithostratigraphic, Geotechnical, and Correlations with the Occurrence of Mass Movement Processes in the Slope Barriers Formation (Cariacica-ES)

Geografares, 2015
This study aims to describe and analyze the lithostratigraphic and geotechnical aspects, in order to correlate them to the occurrence of the mass movement process (slip) on the slope of Barreiras Formation (Cariacica-ES).
Luiza Leonardi Bricalli
doaj  

GEOCHEMISTRY OF SUSPENDED PARTICULATE MATTER IN A TROPICAL ESTUARINE SYSTEM, SOUTHEASTERN BRAZIL

Química Nova
The aim of this study is to assess the variation of the geochemistry of suspended particulate matter (SPM) in the tropical estuarine system composed of the adjacent Piraquê-Açu and Piraquê-Mirim (ES) rivers using SPM sampled with sediment traps (45 µm ...
Sury de M. Monteiro, Fabian Sá, Renato Rodrigues Neto   +2 more
doaj   +1 more source

The morphometry of Lake Palmas, a deep natural lake in Brazil.

PLoS ONE, 2014
Lake Palmas (A = 10.3km2) is located in the Lower Doce River Valley (LDRV), on the southeastern coast of Brazil. The Lake District of the LDRV includes 90 lakes, whose basic geomorphology is associated with the alluvial valleys of the Barreiras Formation
Gilberto F Barroso, Monica A Gonçalves, Fábio da C Garcia   +2 more
doaj   +1 more source