Separation Processes
Mostrando 13-24 de 327 artigos, teses e dissertações.
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13. Interaction between incarcerated adolescents and their grandparents in the processes of living and ageing
Resumo Objetivo: Conhecer a interação de adolescentes privados de liberdade com seus avós no processo de viver e envelhecer. Método: Pesquisa qualitativa, exploratória e descritiva, realizada por meio de uma entrevista semiestruturada com 11 adolescentes internos, entre 17 e 20 anos de idade, em 2018, de uma unidade da Fundação de Atendimento Socioe
Rev. bras. geriatr. gerontol.. Publicado em: 19/08/2019
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14. THERMOPHYSICAL PROPERTIES OF 1-ETHYL-3-METHYLIMIDAZOLIUM CHLORIDE SOLUTION FROM 293.15 TO 323.15 K
ABSTRACT Aqueous systems composed of ionic liquid make up a new alternative for use in processes involving the separation of biomolecules. The objective of this experiment was to obtain the thermo-physical properties of density, refractive index, electrical conductivity, molar volume, thermal expansion coefficient and apparent specific volume of the ionic li
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
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15. Produção e purificação integrada de protease fibrinolítica de Mucor subtilissimus UCP 1262
RESUMO As enzimas fibrinolíticas podem ser obtidas de micro-organismos por meio de processos fermentativos. O presente trabalho teve como objetivo avaliar a produção e extração integrada da protease fibrinolítica de Mucor subtilissimus UCP 1262 usando sistema de duas fases aquosas (SDFA). O processo integrado foi realizado para avaliar a produção, pa
Arq. Bras. Med. Vet. Zootec.. Publicado em: 06/06/2019
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16. Gold Supported on Strontium Surface-Enriched CoFe2O4 Nanoparticles: a Strategy for the Selective Oxidation of Benzyl Alcohol
The synthesis of efficient and reusable gold-based catalysts for the selective oxidation of alcohols is a strategy for the development of green processes. Pre-formed nanoparticles syntheses are an easy way to produce controlled-nanosized gold materials; however, the selection of a support is not trivial. Herein, we proposed a CoFe2O4 support enriched with Sr
J. Braz. Chem. Soc.. Publicado em: 23/05/2019
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17. Uma nova abordagem para a medição da diluição de soldagem, baseada nos pontos de inflexão de um Contorno Ativo
RESUMO Em diversas aplicações, com ênfase nos processos de soldagem dissimilar, a diluição, em conjunto com outros fatores, pode afetar as propriedades mecânicas dos materiais soldados, sendo assim, capaz de gerar falhas durante as condições normais de serviço. Deste modo, a taxa de diluição geralmente é calculada a partir da análise de imagens
Matéria (Rio J.). Publicado em: 20/05/2019
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18. Los ejes centrales de la división de poderes en el Estado Constitucional de Derecho
Abstract This paper aims to describe the transformation experienced by the concept of division of powers since it was conceived in the work of Montesquieu to its central pillars in the new paradigm of democratic constitutional rule of law. In this context, I understand that the new paradigm assigns a dual purpose to the principle of separation of powers and
Rev. Investig. Const.. Publicado em: 15/04/2019
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19. Razão e Administração: revisitando alguns elementos fundamentais
Resumo As ações e os processos administrativos parecem estar em um período pós-racional, no qual a racionalidade se tornou uma palavra mal compreendida, sendo a ação racional comumente associada ao cientificismo e à tecnocracia. Acreditamos que esse estereótipo pode ter um fundo de verdade, mas é, sobretudo, baseado em um mal-entendido fundamental q
Cad. EBAPE.BR. Publicado em: 2019-03
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20. Influence of sintering temperature on the development of alumina membrane shaped by centrifugal casting for gas separation
Abstract The development of ceramic membranes for the most diverse separation processes has gained high visibility, mainly due to their better performance in harsh environments in comparison to polymeric materials. Among the different techniques used to prepare tubular ceramic membranes, the centrifugal casting (CC) is interesting for obtaining highly homoge
Cerâmica. Publicado em: 2019-01
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21. Protein PEGylation for the design of biobetters: from reaction to purification processes
The covalent attachment of polyethylene glycol (PEG) to therapeutical proteins is an important route to develop biobetters for biomedical, biotech and pharmaceutical industries. PEG conjugation can shield antigenic epitopes of the protein, reduce degradation by proteolytic enzymes, enhance long-term stability and maintain or even improve pharmacokinetic and
Braz. J. Pharm. Sci.. Publicado em: 08/11/2018
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22. CORK MEMBRANE FOR EFFICIENT OIL AND WATER SEPARATION
Cork is a renewable, biocompatible, environmentally friendly and abundant biological material with microscale cellular structure. Fabrication of filtration membranes for the separation of oil and water by utilizing such natural materials to replace nonnatural membranes is a green method. A cork membrane with a water contact angle greater than 150° and an oi
Quím. Nova. Publicado em: 2018-07
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23. Influence of temperature and time during malaxation on fatty acid profile and oxidation of centrifuged avocado oil
Abstract Virgin oil from avocados (Persea americana Mill.) is obtained by mechanical processes after pulp malaxation at temperatures that minimize oxidation and improve separation. The objective of this study was to assess the effect of time (0, 20, 30, 40, 60, 120 and 180 min) and temperature (40 and 50 °C) conditions during pulp malaxation on extraction y
Food Sci. Technol. Publicado em: 22/03/2018
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24. USO DE PALHA DE AÇO COMERCIAL PARA O TRATAMENTO DE EFLUENTES CONTENDO CROMO HEXAVALENTE PROVENIENTES DE PROCESSOS DE ELETROCOLORAÇÃO DE AÇOS INOXIDÁVEIS
Residual solutions containing Cr(VI) ions can be harmful to the environment as well as to human health. Hence, practical and efficient methods for the treatment of such solutions are welcome. In this note, the treatment with commercial steel wool pads of a Cr(VI) residual solution from electrochemical coloration processes of stainless steel is described in d
Quím. Nova. Publicado em: 2018-03