Simple Jet
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Viability Assays of PLLA Fibrous Membranes Produced by Rotary Jet Spinning for Application in Tissue Engineering
Abstract Tissue engineering suggests different forms to reconstruct tissues and organs. One of the ways is through the use of polymeric biomaterials such as poly(L-lactic acid) (PLLA). PLLA is a recognized material in tissue engineering due to its characteristics as biocompatibility and bioresorbability. In this work PLLA fibrous membranes were produced by a
Braz. arch. biol. technol.. Publicado em: 12/08/2019
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2. DESTILAÇÃO ATMOSFÉRICA DO BIODIESEL DERIVADO DO ÓLEO DE MACAÚBA OU DO PALMISTE PARA OBTENÇÃO DA FRAÇÃO DE ÉSTERES LEVES PARA USO COMO COMBUSTÍVEL DE AVIAÇÃO
The production of methyl esters via transesterification reaction of triacylglycerides of macaúba and palm kernel oils, with subsequent atmospheric distillation and separation of six fractions of the produced biodiesel, corresponding to 60% of its initial volume, is reported. The composition in esters of the produced biodiesel, its fractions and remaining re
Quím. Nova. Publicado em: 2019-02
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3. Fibrous PCL/PLLA Scaffolds Obtained by Rotary Jet Spinning and Electrospinning
Rotary jet spinning (RJS) and electrospinning are techniques to obtain fibrous scaffolds. RJS is a simple method, which fabricates three-dimensional fibers by exploiting a high-speed rotating nozzle, creating a polymer jet which stretches until solidification, and does not require high voltage. In opposite, electrospinning technique needs the presence of an
Mat. Res.. Publicado em: 15/03/2018
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4. DBD Plasma: Explicit Model with Integral Approximate Solution to Wall Jet
ABSTRACT: This study aims to first introduce a formulation which is quite simple for obtaining dielectric-barrier discharge plasma spatial body force. This new model comprises a combination of an empirical model and a numerical one. Although there are still some limitations in the new model (restriction to specific geometry, maximum voltage amplitude of 30 k
J. Aerosp. Technol. Manag.. Publicado em: 26/02/2018
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5. DETERMINAÇÃO RÁPIDA E SIMULTÂNEA DE SULFAMETOXAZOL E TRIMETOPRIMA UTILIZANDO ANÁLISE POR INJEÇÃO EM BATELADA COM DETECÇÃO AMPEROMÉTRICA E ELETRODO DE DIAMANTE DOPADO COM BORO
A fast, simple procedure for simultaneous determination of sulfamethoxazole (SMX) and trimethoprim (TMP) was performed using batch injection analysis with multiple pulse amperometric detection (BIA-MPA). The sample aliquot (150 µL) was directly injected onto the boron-doped diamond (BDD) electrode (wall-jet configuration) immersed in a BIA system. The an
Quím. Nova. Publicado em: 2015-06
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6. Química e sustentabilidade: novas fronteiras em biocombustíveis
This contribution discusses the state of the art and the challenges in producing biofuels, as well as the need to develop chemical conversion processes of CO2 in Brazil. Biofuels are sustainable alternatives to fossil fuels for providing energy, whilst minimizing the effects of CO2 emissions into the atmosphere. Ethanol from fermentation of simple sugars and
Quím. Nova. Publicado em: 2013
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7. Droplet dispersion angle measurements on a Pease-Antony Venturi scrubber
A Pease-Anthony Venturi scrubber is a gas cleaning device that uses liquid, injected in the equipment as jets, to remove contaminants from the gas. The liquid jet is atomized into droplets, which are dispersed throughout the equipment due to the turbulence. The performance of the scrubber is affected by the spatial distribution of the droplets. Although CFD
Brazilian Journal of Chemical Engineering. Publicado em: 2012-03
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8. An effective device for generating alginate microcapsules
An alternative approach to somatic gene therapy is to deliver the therapeutic protein by implanting genetically modified cells that could overexpress the gene of interest. Microencapsulation devices were designed to protect cells from host rejection and prevent the foreign cells from spreading while allowing protein secretion. Alginate microcapsules form a s
Publicado em: 2010
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9. CFD and CAA analysis of single stream isothermal jets with noise suppression devices.
Since the 50 s, with the appearance of the turbojet engines, the jet noise is being exhaustively studied, because it is one of the most important source of aircraft noise. Many attempts have been made to reduce the jet noise, including higher by-pass turbofan engines. Chevron nozzles also have been used by the industry to try to reduce the jet noise with a l
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/04/2009
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10. An effective device for generating alginate microcapsules
An alternative approach to somatic gene therapy is to deliver the therapeutic protein by implanting genetically modified cells that could overexpress the gene of interest. Microencapsulation devices were designed to protect cells from host rejection and prevent the foreign cells from spreading while allowing protein secretion. Alginate microcapsules form a s
Genetics and Molecular Biology. Publicado em: 2008
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11. EVALUATION OF A COMPRESSED AIR MODULATOR FOR GC×GC AND APPLICATION TO DETERMINATION OF PYRETHROID PESTICIDES RESIDUES IN GRAPE / AVALIAÇÃO DE UM MODULADOR A AR COMPRIMIDO PARA GC×GC E SUA APLICAÇÃO PARA DETERMINAÇÃO DE RESÍDUOS DE PESTICIDAS PIRETRÓIDES EM UVA
In this study, a new modulator that is simple, robust and presents low operation costs was developed. This modulator uses compressed air to cool two small portions of the second chromatographic column of a GC×GC system. To evaluate the modulation process, solutions of alkanes C7 to C29, and pesticides (bifenthrin, cyfluthrin, cypermethrin, esfenvalerate, fe
Publicado em: 2008
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12. Padrões de circulação anômala associados a episódios úmidos e secos no sul do Brasil / Anomalous circulation patterns associated with wet and dry events in southern Brazil
The characteristics of the atmospheric circulation associated with persistent wet and dry events in Southern Brazil during all seasons were studied from 1979 to 2002, using precipitation pentad data. The result shows that the dominant oscillations of rainfall variability have periods between 2 and 6 pentads. Superposition of different periods was also identi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/04/2007