Výsledky vyhledávání - "Armindo Santos"

Akademický článek

Melt-melt immiscibility and implications for the origin of Madeira albite-rich granite, Pitinga mine, Amazonas, Brazil: A melt inclusion study

Autor: Régis Munhoz Krás Borges, Lucas Eustáquio Dias Amorim, Francisco Javier Rios, Gabrielle Cristine Silva dos Santos, Monica Elizetti Freitas, Tatiana Aparecida Fernandes de Lima, Armindo Santos, Tércio Assunção Pedrosa

Publikováno v: Brazilian Journal of Geology, Vol 51, Iss 4 (2022)

Abstract Presented here are the results of the first studies of silicate melt inclusions hosted in quartz crystals from the two late granitic facies of the Paleoproterozoic Madeira pluton in the Pitinga mine, State of Amazonas, Brazil. The study of t

Externí odkaz: https://doaj.org/article/0e430bf45719457aa139b7326c53529a

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Akademický článek

Experiências de um programa em educação ambiental: sustentabilidade e meio ambiente no colégio municipal professora América Aballa, Rio das Ostras, RJ

Autor: Armindo Santos Neto

Publikováno v: Boletim do Observatório Ambiental Alberto Ribeiro Lamego, Vol 7, Iss 2, Pp 29-47 (2014)

Este estudo aborda sustentabilidade e meio ambiente. O Colégio Municipal Professora América Abdalla recebeu a proposta buscando obter resultados concretos,ciente de que tal prática promoveria mudanças comportamentais e incorporaria valores nos al

Externí odkaz: https://doaj.org/article/1ccad6ee2c9148a4a1ef61325332b9b9

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Porous Stainless Steel Microsphere Synthesis by a Nonconventional Powder Metallurgy Process Useful in the Cermet-Type Advanced Nuclear Fuel Fabrication

Autor: Luciana Sampaio Ribeiro, Francisco Javier Rios, Armindo Santos

Publikováno v: Journal of Nanomaterials.

The fabrication of SS (stainless steel)-UO2 cermet-type advanced nuclear fuel pellets suitable for use in power reactors depends on the development of metallic (SS), ceramic (UO2), and cermet (SS-UO2) microspheres with special characteristics. In thi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4d83178c101c381a8188b6f57f17044

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Melt-melt immiscibility and implications for the origin of Madeira albite-rich granite, Pitinga mine, Amazonas, Brazil: A melt inclusion study

Publikováno v: Brazilian Journal of Geology, Vol 51, Iss 4 (2022)
Brazilian Journal of Geology v.51 n.4 2021
Brazilian Journal of Geology
Sociedade Brasileira de Geologia (SBGEO)
instacron:SBGEO

Presented here are the results of the first studies of silicate melt inclusions hosted in quartz crystals from the two late granitic facies of the Paleoproterozoic Madeira pluton in the Pitinga mine, State of Amazonas, Brazil. The study of these magm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3219dbd2458b66ca02b1bb023817c5a9
https://doi.org/10.1590/2317-4889202120210011

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Pulmonary oxidative stress and apoptosis in mice chronically exposed to hydrothermal volcanic emissions

Autor: Ricardo, Camarinho, Patrícia Ventura, Garcia, Hyunok, Choi, Armindo Santos, Rodrigues

Publikováno v: Environmental science and pollution research international. 28(27)

Recent studies have shown that exposure to hydrothermal emissions has a negative impact on the respiratory system. Still, volcanogenic air pollution studies are still outnumbered when compared to anthropogenic studies which can result in an unknown r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::ede0c20c085e45fa2718df4de5f4a263
https://pubmed.ncbi.nlm.nih.gov/33675493

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Akademický článek

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Fluorine adsorption on floating iron nanoparticles confined to gigaporous structure of large adsorbent water spheres

Autor: Felipe Wallysson Ferreira de Oliveira, Pedro Lana Gastelois, Sérgio Carneiro dos Reis, Leila Nunes Menegasse Velásquez, Armindo Santos, Luciana Sampaio Ribeiro, José D. Ardisson, Vera Lúcia dos Santos, Alexandre A. C. Cotta

Publikováno v: Environmental Technology & Innovation. 24:101995

Effective defluoridation of artesian well water can be performed with iron nanoparticles confined to expanded reticulated polymer network of polyvinyl alcohol (PVA) containing a high quantity of water. For this purpose, large (3433 ± 63 μ m) adsorb

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::09281083d8f9ac5395bb5ac9a9f6a133
https://doi.org/10.1016/j.eti.2021.101995

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Uso de detectores cerâmicos alfa-Al2O3 para discriminar campos de radiação beta e de fótons

Autor: Luiz Cláudio Meira-Belo, Hudson Rubio Ferreira, Anna Clara Camilo Bernacci, Bruno Melo Mendes, Armindo Santos, Anna Luiza Fraga da Silveira

Publikováno v: Revista Brasileira de Física Médica. 13:20

Czochralski, são amplamente utilizados para monitoração pessoal e de área. Uma metodologia para produção de cerâmicas policristalinas alfa-Al2O3 baseadas no método sol-gel foi desenvolvida em nosso grupo de pesquisa. Estas cerâmicas foram es

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d9ad7eca54e2188a8aedb11c9f36fbcd
https://doi.org/10.29384/rbfm.2019.v13.n2.p20-24

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Synthesis and characterization of iron-PVA hydrogel microspheres and their use in the arsenic (V) removal from aqueous solution

Autor: José D. Ardisson, Armindo Santos, Francisco Henrique Araujo Silva, Felipe Wallysson Ferreira de Oliveira, Milton Batista Franco, Helena Eugênia Leonhardt Palmieri, Daniel Andrada Maria, Waldemar A. A. Macedo

Publikováno v: Chemical Engineering Journal. 210:432-443

We adapt the sol–gel process to synthesize monodisperse metallic iron (80–155 μm), iron oxide (117–200 μm), xerogel (130–224 μm), and -PVA hydrogel (300–600 μm) microspheres. According to the Mossbauer analysis, iron xerogel and -PVA hy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::615c107b9246348283868169d75924ae
https://doi.org/10.1016/j.cej.2012.08.078

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Usage of the sol–gel process on the fabrication of macroporous adsorbent activated-gamma alumina spheres

Autor: Armindo Santos, José D. Ardisson, Vera Lúcia dos Santos, Carlos A. Rosa, Tânia Keli Resende de Oliveira, César Lúcio Lopes de Faria, Waldemar A. A. Macedo

Publikováno v: Microporous and Mesoporous Materials. 120:228-238

In this work, we have developed a chemical process to agglomerate activated-gamma alumina microparticles. It is based on the sol–gel process. The process which was developed preserves the characteristics of porosity of the alumina microparticles. I

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d8f26af6b9929808e12f0bf9af2e8905
https://doi.org/10.1016/j.micromeso.2008.11.008

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