Granulometric Characteristics
Mostrando 1-12 de 20 artigos, teses e dissertações.
-
1. Granulometric stabilization of laterites from Triângulo Mineiro and Alto Paranaíba for use in base course
Abstract The present article presents the study of three laterites from the Triãngulo Mineiro and Alto Paranaíba region, aiming to use it as a pavement base. The methodology used consisted of carrying out the tests prescribed by the DNIT 098/2007 standard and, as a complementary methodology, linear contraction, MCT classification, modulus of resilience and
REM - International Engineering Journal. Publicado em: 2022
-
2. Contribution of public squares to the reduction of urban flooding risk
Resumo A urbanização está diretamente ligada ao processo de impermeabilização do solo em áreas urbanas que acaba contribuindo no surgimento dos riscos de alagamentos. Desse modo, objetivou-se nessa pesquisa determinar as propriedades hidrodinâmicas das praças púbicas de uma cidade Brasileira e com isso determinar o quanto podem contribuir para a red
Rev. Ambient. Água. Publicado em: 25/11/2019
-
3. A Geostatistical Framework for Estimating Compositional Data Avoiding Bias in Back-transformation
Abstract Estimation of some mineral deposits involves chemical species or a granulometric mass balance that constitute a closed constant sum (e.g., 100%). Data that add up to a constant are known as compositional data (CODA). Classical geostatistical estimation methods (e.g., kriging) are not satisfactory when CODA are used, since bias is expected when estim
Rem: Rev. Esc. Minas. Publicado em: 2016-06
-
4. Efeito da granulometria e da embalagem na sorção de água pelo café torrado e moído / Effect of granulometry and packaging on water sorption by roasted and ground coffee
The objective of this study was to evaluate the effect of granulometry and types of packaging on the water sorption by roasted and ground coffee. Arabica coffee grains were utilized with an initial water content of 0.1234 kgw kgdm -1, roasted until the medium roast point, with a weight loss of 17%, in wich four granulometric levels were established: whole gr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/07/2011
-
5. CARACTERIZAÇÃO TECNOLÓGICA DE UM SINTER FEED HEMATÍTICO CONTENDO DIFERENTES PROPORÇÕES E TIPOS DE SÍLICA NAS FRAÇÕES ADERENTES, INTERMEDIÁRIAS E NUCLEANTES
There are important Vale iron ore reserves located in the state of Minas Gerais. The hematite/itabirite relationship in the ROMs has been decreasing compared to the last decade. The beneficiation plants have been concentrating its efforts on reducing the silica content in the sinter feed in order to reach the quality levels demanded for the sintering process
Publicado em: 2010
-
6. Variabilidade da infauna adjacente a estruturas rochosas na plataforma rasa do litoral do Paraná, Brasil
Ocean rocky formations are known as islands. When islands become completely submerged, they are called stone slabs. Like reefs, these formations alter the flux of water produced by the waves, which in turn interacts with the adjacent sediment, altering the sediment and its undulation marks. The alterations caused by the interaction between the waves and emer
Zoologia (Curitiba). Publicado em: 2009-12
-
7. Influência da adição da lama fina de aciaria a oxigênio nas características físicas e microestruturais de pelotas queimadas de minério de ferro
At the Brazilian steelmaking industry, the estimated annual production of steelmaking BOF sludge is about 230 thousand tons. The BOF sludge is a residue typical of oxygen steel mills. The main chemical and granulometric characteristics of the steelmaking BOF sludge are the following: about 30% of BOF thick sludge, with high metallic content and granulometry
Publicado em: 2009
-
8. Potencial osteogênico in vivo de uma nova vitrocerâmica bioativa (Biosilicato)
Bioactive materials have the ability to bond and to integrate with bone tissue by forming a biologically active bonelike apatite layer, which has chemical and structural properties equivalent to the mineral phase of living bone. This process is determined by chemical reactions, whose products also influence the attachment, the proliferation, the differentiat
Publicado em: 2009
-
9. Estudo do fósforo sedimentar e de suas especiações químicas em dois sistemas costeiros e Plataforma Continental Sudeste (Brasil) e Baía do Almirantado (região antártica) considerando suas relações biogeoquímicas / Study of phosphorus and its chemical speciation in sediments in two coastal environments and southeasterns continental shelf (Brazil) and admiralty Bay (Antarctic region) considering its biogeochemical aspects
This work aims to study the total and chemical species of phosphorus in the surface sediments associated to the biogeochemical processes in two estuarine systems, the southeastern continental shelf and Antarctic polar region. Bottom water samples were collected in two seasonal periods (summer-winter) in the estuaries under different degrees of environmental
Publicado em: 2008
-
10. Avaliação da dolomita funcionalizada para remoção de H2S em gás natural / Avaliação da dolomita funcionalizada para remoção de H2S em gás natural
The natural gas is an alternative source of energy which is found underground in porous and permeable rocks and being associated or not to the oil. Its basic composition includes methane, other hydrocarbon and compounds such as carbon dioxide, nitrogen, sulphidric gas, mercaptans, water and solid particles. In this work, the dolomite mineral, a double carbon
Publicado em: 2008
-
11. Caracterização hidrológica dos solos da bacia experimental do Ribeirão Concórdia, Lontras/SC
The knowledge of the physical and hydraulic soil properties is highly important to both use and appropriate management of the soil, as well as the understanding of the dynamic process of water and solutes movement. This work has the finality to generate knowledge about the hydrological characteristics of the soil of the experimental Basin of Ribeirão Concó
Publicado em: 2008
-
12. Caracterização fisico-química de adobe estabilizado com amido de mandioca
Due to the high habitational Brazilian shortage, traditional technologies of earth construction and constructive elements production have been rescue, having the soil as a principal raw material. Between these traditional technologies, there are the adobes, which consist of soil blocks with regional variable size. The soil material is removed, humidified, tr
Publicado em: 2008