Charge Space
Mostrando 1-12 de 111 artigos, teses e dissertações.
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1. Doxazosin adsorption in natural, expanded, and organophilized vermiculite-rich clays
Abstract Vermiculite clays are adsorbent materials that have good chemical adsorption capacity, which makes them applicable in the removal of drugs from aqueous solutions. Their lamellar structure can be easily expanded and organophilized. To assess the efficacy and environmentally-tolerant capacity of the adsorption method, the organophilized vermiculite cl
Cerâmica. Publicado em: 2022
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2. READING AND WRITING IN EARLY CHILDHOOD EDUCATION: CONTEXTS AND PRACTICES UNDER DEBATE
Resumo O artigo analisa relatórios de entrevista e observação de 27 escolas e turmas da pesquisa “Boas práticas de leitura e escrita na educação infantil”, em sete municípios de regiões brasileiras. Boas práticas são aquelas nas quais infância e experiência, educação e cuidado constituem binômios de criação, conforme as Diretrizes Curric
Cad. Pesqui.. Publicado em: 09/12/2019
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3. New Synthesis Method for a Core-Shell Composite Based on α-Bi2O3 @PPy and its Electrochemical Behavior as Supercapacitor Electrode
New composite based on polypyrrole (PPy) and bismuth oxide (α-Bi2O3) was investigated as supercapacitor electrode. The α-Bi2O3 was obtained by hydrothermal route at 500 ºC for 2 h. Cyclic voltammetry was used to electropolymerize PPy on graphite electrode (GE) or on GE/α-Bi2O3. The X-ray diffraction profile of Bi2O3 revealed the α-Bi2O3 monoclinic struc
J. Braz. Chem. Soc.. Publicado em: 2019-04
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4. Group of pregnant women and / or pregnant couples: a collective construction process (1996-2016)
RESUMO Objetivo: Compreender como se instituiu o processo de construção do Grupo de Gestantes e/ou Casais Grávidos na Universidade Federal de Santa Catarina, no período de 1996 a 2016. Método: Pesquisa qualitativa de natureza histórico-social, envolvendo nove profissionais de saúde que participaram do grupo de gestantes e/ou casais grávidos neste p
Esc. Anna Nery. Publicado em: 25/03/2019
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5. A educação como direito social e a escola como espaço protetivo de direitos: uma análise à luz da legislação educacional brasileira
Resumo Problematiza-se neste artigo de revisão documental e bibliográfica, pertencente à área de estudos em Educação em Direitos Humanos (EDH), a qualidade social da educação escolar a partir da análise da sua institucionalidade no marco normativo educacional instituído após a Constituição Federal de 1988. Tais atos legislativos legalizam uma fu
Educ. Pesqui.. Publicado em: 14/02/2019
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6. Transport Properties of Polycrystalline Mixed Copper-Zinc Ferrites
Polycrystalline mixed Cu-Zn spinel ferrites with general formula Cu1-xZnxFe2O4 (x = 0.0, 0.1, 0.3, 0.5 and 0.7) have been prepared by solid-state reaction method. The effect of Zn2+ ions on transport properties such as DC and AC resistivity, dielectric constant and dielectric loss tangent has been presented in this paper. The resistivity increases with Zn co
Mat. Res.. Publicado em: 19/04/2018
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7. FOTOELETROCATÁLISE EM SEMICONDUTORES: DOS PRINCÍPIOS BÁSICOS ATÉ SUA CONFORMAÇÃO À NANOESCALA
The science of semiconductors, essential in electronics, is pivotal also for the most active research fields of environmental science and engineering today - the development of solar energy conversions and advanced oxidation processes, exemplified by the harvesting of sun daylight to produce electric energy, environmentally friendly fuels and to clean up wat
Quím. Nova. Publicado em: 2018-03
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8. ERRORES DE TRANSFERENCIA EN COMUNIDADES DE APRENDIZAJE EN LÍNEA POR APRENDIENTES DE ESPAÑOL COMO LENGUA EXTRANJERA (ELE)
ABSTRACT Online language learning communities provide free of charge space to practice writing in the target language, where students can post their experience and/or various stories. This type of writing is created in an unconstrained context, characterized by the naturalness of how these texts are written, without direct intervention of formal in-class ins
Trab. linguist. apl.. Publicado em: 2016-12
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9. Thermoelectric-Sourced Programmable Electronic Switching Module to Ignite Electro-Explosive Devices
ABSTRACT: A microcontroller-based programmable electronic switching module is designed and developed. For supplying power to this module, thermoelectric generators (TEGs) are electrically integrated to the switching module. This integrated switching module is carried out to develop a Thermoelectric-sourced Programmable Electronic Switching Module (TPESM), wh
J. Aerosp. Technol. Manag.. Publicado em: 2015-12
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10. The effect of Pr co-doping on the densification and electrical properties of Sr-LaAlO3
Perovskite-type materials have been investigated extensively in the attempt to discover new electrolyte materials for solid oxide fuel cells (SOFC) operating at low temperatures. These materials include LaAlO3-based perovskite, which, when adequately doped, presents high ionic conductivity. However, despite the high conductivity of doped LaAlO3, two characte
Mat. Res.. Publicado em: 07/06/2013
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11. Determining the Fixed Pattern Noise of a CMOS Sensor: Improving the Sensibility of Autonomous Star Trackers
ABSTRACT: Autonomous star trackers are optical-electronic devices used for attitude determination of artificial satellites, having as a reference for this computation the positions of stars. There is one autonomous star tracker in development at the Aerospace Electronics Division of the Brazilian National Institute for Space Research. The autonomous star tra
J. Aerosp. Technol. Manag.. Publicado em: 2013-06
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12. Síntese assistida por microondas de LiMn2O4, caracterização e testes como catodo para dispositivos de armazenamento de energia / Microwave-assisted sinthesys of LiMn2O4, characterization and testing as cathode for energy storage devices
Lithium manganese oxide - LiMn2O4 - was produced by a microwaveassited solid state reaction. Solid mixtures containing LiOH.H2O and -MnO2 (synthesized electrolytically) underwent microwave irradiation for 3, 4 and 5 min. The obtained material was characterized by X-ray diffraction (XRD), scanning electron microscopy and cyclic voltammetry. Conductivi
Publicado em: 2011