Miniaturization Techniques
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Metamaterial-Fractal-Defected Ground Structure Concepts Combining for Highly Miniaturized Triple-Band Antenna Design
Abstract In this paper, a novel method is proposed to increase the gain and radiation efficiency of a compact patch antenna. By employing a combination of three efficient techniques, we have developed a multi-resonance L-DGS antenna with a high gain of 5 dB and an efficiency of 99.6%. Furthermore, a novel compact Double Negative metamaterial unit cell and it
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2020-12
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2. Flow Analysis: Looking Back and Forward
Flow analysis changed significantly the way of performing chemical analysis by (i) mechanization of analytical procedures in a continuous flowing stream with minimal sample intercontamination; (ii) analytical measurements without attaining chemical equilibria, thus increasing the applicability of kinetic methods and allowing the exploitation of non-quantitat
J. Braz. Chem. Soc.. Publicado em: 2018-05
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3. Estudo de antenas patches de microfita miniaturizadas em banda larga para aplicação em dispositivos móveis e portáteis
Esse trabalho apresenta técnicas usadas para projetar e fabricar antenas patch de microfita para aplicações em dispositivos portáteis e móveis. Para isso, são avaliados diversos fatores que podem influenciar no desempenho das antenas patch de microfita. Técnicas de miniaturização são estudadas e empregadas visando a aplicação deste tipo de antena
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/12/2011
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4. Environmentally responsive polymeric "intelligent" materials: the ideal components of non-mechanical valves that control flow in microfluidic systems
Miniaturization and commercialization of integrated microfluidic systems has had great success with the development of a wide variety of techniques in microfabrication, since they allowed their construction at a low cost and by following simple step-series procedures. However, one of the major challenges in the design of microfluidic systems is to achieve co
Brazilian Journal of Chemical Engineering. Publicado em: 2010-03
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5. Desenvolvimento e aplicação de técnicas miniaturizadas de preparo de amostras para análises ambientais via GC-MS / Development and application of miniaturized sample preparation techniques for environmental analysis via GC-MS
This study describes the development and application of different miniaturized sample preparation techniques for environmental analysis via gas chromatography and mass spectrometry (GC-MS). Among those techniques, the Solid Phase Extraction (SPE) was applied to the analysis of plant growth regulator, called paclobutrazol (PBZ), in soil samples. A method was
Publicado em: 2009
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6. Nanolitografia do silício utilizando o microscópio de força atômica / Silicon nanolithography using a atomic force microscope
The semiconductor industry is increasingly interested in the miniaturization of devices in the nanometer range. As the traditional techniques of lithography are reaching their limits growth the demand for new, including those that use equipment operating by probe, such as the atomic force microscope (AFM). One of the techniques that uses AFM on to produce na
Publicado em: 2009
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7. Miniaturization techniques for dielectric filters at microwave frequencies / Tecnicas de miniaturização de filtros dieletricos em microondas
O trabalho mostra o desenvolvimento de um filtro na faixa de frequência de micro-ondas e sua construção usando ressoadores dielétricos de alta permissividade elétrica. A partir da definição matemática de uma função de transferência do tipo entrada-saída, que caracteriza um filtro, e do uso da teoria de síntese de redes, vista de um modo bastante
Publicado em: 2009
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8. Rapid manufacturing and rapid tooling of polymer miniaturized parts using Stereolithography
Currently, miniaturization is a major trend in the manufacturing and commercialization of new industrial products. When small-sized objects should be manufactured with dimensions of only a few millimeters or less, many difficulties can appear using traditional processes. An alternative to study these new requirements is through the use of rapid prototyping t
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-03
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9. "Fabricação e avaliação de microdispositivos para eletroforese com detecção eletroquímica" / "Fabrication and Evaluation of Electrophoresis Microdevices coupled with Electrochemical Detection"
This work describes the development of electrophoresis microchip fabricated by direct-printing and photolithographic processes. The channel structures of the devices fabricated by direct-printing process are defined by polyester films (base and cover) and by a toner layer (walls). The characterization of toner surface and composition were necessary for a bet
Publicado em: 2004
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10. Application of magnetic techniques in the field of drug discovery and biomedicine
Magnetic separation technology, using magnetic particles, is quick and easy method for sensitive and reliable capture of specific proteins, genetic material and other biomolecules. The technique offers an advantage in terms of subjecting the analyte to very little mechanical stress compared to other methods. Secondly, these methods are non-laborious, cheap a
BioMed Central.
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11. Ligand-receptor binding measured by laser-scanning imaging
This report describes the integration of laser-scanning fluorometric cytometry and nonseparation ligand-binding techniques to provide new assay methods adaptable to miniaturization and high-throughput screening. Receptor-bound, cyanine dye-labeled ligands, [Cy]ligands, were discriminated from those free in solution by measuring the accumulated fluorescence a
The National Academy of Sciences.
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12. The hybridization-stabilization assay: a solution-based isothermal method for rapid screening and determination of sequence preference of ligands that bind to duplexed nucleic acids
The gene-to-drug quest will be most directly served by the discovery and development of small molecules that bind to nucleic acids and modulate gene expression at the level of transcription and/or inhibit replication of infectious agents. Full realization of this potential will require implementation of a complete suite of modern drug discovery technolo
Oxford University Press.