Anisotropic Substrate
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Numeric reconstruction of 2D cellular actomyosin network from substrate displacement
Introduction: One of the fundamental structural elements of the cell is the cytoskeleton. Along with myosin, actin microfilaments are responsible for cellular contractions, and their organization may be related to pathological changes in myocardial tissue. Due to the complexity of factors involved, numerical modeling of the cytoskeleton has the potential to
Res. Biomed. Eng.. Publicado em: 27/11/2015
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2. A Comuputerized DRBEM model for generalized magneto-thermo-visco-elastic stress waves in functionally graded anisotropic thin film/substrate structures
A numerical computer model, based on the dual reciprocity boundary element method (DRBEM) for studying the generalized magneto-thermo-visco-elastic stress waves in a rotating functionally graded anisotropic thin film/substrate structure under pulsed laser irradiation is established. An implicit-implicit staggered algorithm was proposed and implemented for us
Lat. Am. j. solids struct.. Publicado em: 2014-05
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3. Estudo de viabilidade de integração de micro-lâmpadas incandescentes com filtros interferenciais. / Study of viability of integration of incandescent micro-lamps with interferometric filters.
In the present work was realized a study of the viability of integrating two optical devices: incandescent micro-lamps and interferometric filters with the intention of obtaining a single device with specific characteristics. The fabrication of these optical devices was made using dielectric materials, obtained by plasma-enhanced chemical vapor deposition (P
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/04/2011
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4. Estudo estrutural de nanossistemas semicondudores e semicondutores implantados por difração de raios-X de n-feixes / Structural study of semiconductors nanosystems and implanted semiconductors by means of n-beams X-ray diffraction
In this paper, X-ray multiple diffraction (MD) associated with the advantages of synchrotron radiation appears as a high-resolution microprobe and it is used to obtain relevant contributions to the study of structural properties of semiconductor materials, as they present themselves nanosystems epitaxial or implanted with ions. The study and detection of neg
Publicado em: 2010
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5. Corrosão anisotropica e formação de superficie nanoestruturada de Si utilizando plasma de alta densidade / Si anisotropic etching and nanostructured surface formation using high density plasma
This work explores the implementation, characterization and applications of BOSCH type process for bulk silicon etching (or bulk silicon micromachining) using inductively coupled high density plasma (ICP). This etching process is characterized by its high anisotropy and is performed by alternating etching steps, employing SF6 + Ar gas mixture, and passivatio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2009
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6. Estudo da eletrooxidação de monóxido de carbono em RuO2(110), e visualização morfológica e atômica de fases ricas em oxigênio na oxidação de Ru(0001) através da microscopia de varredura por tunelamento / Study of the electrooxidation of carbon monoxide on RuO2(110), and morphological and atomic visualization of oxygen-rich Ru(0001) surfaces by means of Scanning Tunneling Microscopy
In the last 30 years the parallel growth of the traditional Surface Science, under UHV environment, and Electrochemistry gave rise to a new interdisciplinary field: Surface Science and Electrochemistry. Techniques from both sciences give complementary information. Thus, in tandem, they are able to elucidate many atomic, structural and electronic phenomena, o
Publicado em: 2007
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7. Desenvolvimento de micropontas de silício com eletrodos integrados para dispositivos de emissão por efeito de campo. / Development of silicon microtips with integrated electrical contacts for field emission devices.
This work presents a fabrication method of silicon microtips with integrated electrical contacts into the structure. Our motivation is the future development of field emission devices - FED, however our focus in this research is the microstructure fabrication process. This method is based on: (i) anisotropic under-etch method that occurs in the silicon subst
Publicado em: 2007
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8. ConfiguraÃÃo, anisotropia e defeitos em uma rede de vÃrtices na presenÃa de nanoarmadilhas
Since Abrikosov s work in 1957, it. has been clear the vortex lattice existence and stability in specific magnetic fields and temperature values of type ll super- conductors. On external currents and Thermic fluctuations, vortices move through the superconductor salable resulting thermal dissipation. But it is salvage to most. actual technologic applications
Publicado em: 2006
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9. Caracterização de estruturas planares com substratos Iso/Anisotrópicos truncados através da técnica da ressonância transversa modificada
This work presents a theoretical and numerical analysis using the transverse resonance technique (TRT) and a proposed MTRT applied in the analysis of the dispersive characteristics of microstrip lines built on truncated isotropic and anisotropic dielectric substrates. The TRT uses the transmission lines model in the transversal section of the structure, allo
Publicado em: 2005
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10. Análise de antenas de microfita com patches circulares sobre substratos anisotrópicos usando o método dos potenciais de Hertz
Este trabalho consiste na análise teórica e numérica das características de uma antena de microfita com patch circular, cujo substrato é composto por materiais dielétricos isotrópicos e anisotrópicos uniaxiais. Para isto, uma análise de onda completa é realizada, utilizando-se o Método dos Potenciais Vetoriais de Hertz no domínio da transformada
Publicado em: 2005
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11. Synthesis, characterization and study of catalytical properties of mixed layered hydroxides containing Cu(II)/Mg(II)/Al(III) / Síntese, caracterização e estudo de propriedades catalíticas de hidróxidos mistos lamelares contendo Cu(II)/Mg(II)/AI(III)
In this work it was investigated the preparation and spectroscopic characterization of layered hydroxides of composition [Mg3-xCuxAl(OH)8](CO3)0.5.yH2O (x = 0.3; 0.6; 0.9; 1.2; 1.5; 1.8; 2.1; 2.4; 2.7 and 3.0), as well the reactivity of these materials towards phenol hydroxylation, using hydrogen peroxide as oxidizing agent. The solids had been prepared thro
Publicado em: 2005
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12. Efeitos de tensão em filmes finos de manganitas estudados por espectroscopia de absorção de raios-X com luz linearmente polarizada
Among the materials exhibiting the Colossal Magnetoresistance e effect, mixed manganite thin films have received special attention due to their potential applications for new generation magneto-eletronic devices. In these systems, the external biaxial strain could be used to tune the magnetism and transport properties if it were possible to settle the exact
Publicado em: 2003