Resonances
Mostrando 13-24 de 410 artigos, teses e dissertações.
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13. Ultrafast Dynamics of Au Nanopyramid Interfaces Prepared by Nanosphere Lithography: Effect of Substrate Chemical Composition
This work describes ultrafast spectroscopy studies of Au triangular pyramid particle arrays deposited over glass (termed Au/glass), and 190 nm indium tin oxide (ITO) film (termed Au/ITO/glass) prepared by nanosphere lithography. The linear absorption spectra of Au/glass and Au/ITO/glass exhibit surface plasmon resonances at 800 and 870 nm, respectively, in g
J. Braz. Chem. Soc.. Publicado em: 2016-02
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14. Theory of Weightless Sagging Elasto-Flexible Cables
Abstract In this Paper, a theory of single sagging planer weightless elasto-flexible cables is proposed. In reference to the instantaneous natural state, hypoelastic rate- type constitutive equations and third-order nonlinear differential equations of planer motion for massless cables with nodal masses are derived. New concepts like configurational complemen
Lat. Am. j. solids struct.. Publicado em: 2016-01
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15. Nonlinear Optical Properties and Femtosecond Laser Micromachining of Special Glasses
Materials specially designed for photonics have been at the vanguard of chemistry, physics and materials science, driven by the development of new technologies. One particular class of materials investigated in this context are glasses, that in principle should exhibit high third order optical nonlinearities and fast response time, whose optical properties c
J. Braz. Chem. Soc.. Publicado em: 2015-12
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16. Long Period Bragg Grating in Coaxial Transmission Lines
This work shows the utilization of a coaxial cable for the fabrication of a long period Bragg grating. The grating is fabricated removing the dielectric in short pieces of the cable so that the discontinuities account for the variation in the medium refractive index. Simulated and experimental results of the grating resonances are shown as a function of the
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2015-06
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17. Study on TVD parameters sensitivity of a crankshaft using multiple scale and state space method considering quadratic and cubic non-linearities
In this paper the effect of quadratic and cubic non-linearities of the system consisting of the crankshaft and torsional vibration damper (TVD) is taken into account. TVD consists of non-linear elastomer material used for controlling the torsional vibration of crankshaft. The method of multiple scales is used to solve the governing equations of the system. M
Lat. Am. j. solids struct.. Publicado em: 2014
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18. Resonant properties, of modified triangular plasmonic nanoparticles with higher field concentration
In this paper, we present an analysis of the resonant response of modified triangular metallic nanoparticles with polynomial sides. The particles are illuminated by an incident plane wave and the method of moments is used to solve numerically the electromagnetic scattering problem. We investigate spectral response and near field distribution in function of t
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2013-12
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19. Espectroscopia de fósforo por ressonância magnética em malformações do desenvolvimento cortical
IntroductionMalformations of cortical development (MCD) result from disruptions in the dynamic process of cerebral corticogenesis and are important causes of epilepsy, motor deficits and cognitive impairment.ObjectivesThe aim of this study was to evaluate phospholipids metabolism in vivo in a series of patients with epilepsy and MCD.MethodsThirty-seven patie
Arq. Neuro-Psiquiatr.. Publicado em: 2013-07
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20. Tratamiento social de las diferencias, teorias infantiles y narrativas
In this paper we look at the social treatment of the differences and unique resonances in three directions: a) The importance in the evolution of infantile sexuality of the encounter with the difference between the bodies as key in shaping perceptions of infantile sexual theories and their impact when they do not have collective processing support; b) The tr
Educ. Real.. Publicado em: 2013-06
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21. Ressonâncias e inflexões do modernismo arquitetônico no Ceará: a contribuição de Gerhard Bormann / Resonances and inflections of achitectural modernism in Ceará: the contribution of Gerhard Bormann.
Esta tese é centrada na trajetória do arquiteto Gerhard Bormann, profissional atuante no Ceará como arquiteto e professor da Escola de Arquitetura da UFC durante as décadas de 1960 e 1970. A análise da sua obra, doutrina acadêmica e a própria biografia do arquiteto são tomadas como passagem à compreensão de uma produção arquitetônica coletiva, r
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/09/2012
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22. ARTE, TÉCNICA E MERCADO: ressonâncias da indústria fonográfica entre as descontinuidades da cibercultura / ART, TECHNICAL AND MARKET: resonances of the music industry between the discontinuities of cyberculture
Este trabalho discute as relações entre arte, técnica e mercado a partir de fenômenos sócio - culturais relativos à convergência entre os mercados musical e digital. Se, em um primeiro momento, a proliferação da pirataria musical no século XX tardio suscitou a ideia de que a dinâmica de metamorfoses das tecnologias digitais em rede decretariam a f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2012
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23. Saúde mental na atenção básica: política, trabalho e subjetividade / Mental Health in Primary Care: political, labor and subjectivity, Mental Health in Primary
The research aimed to understand relationships between work and subjectivity in mental health conducted in primary care teams with the workers, Mental Health / SM and Family Health / SF allocated to Basic Health Unit / Health Center. Developed the research, through documentary analysis of health policies and press conferences based on the Psychodynamics of W
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/01/2012
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24. Análise e otimização da resposta em dinâmica de rotores
Great efforts are been made recently in order to diagnose vibrations in structures and equipments. Rotary machines require even greater attention, for they carry the risk of auto-excitation. This paper has as an objective the exposition a rotor dynamics methodology to minimize the response amplitude in the frequency domain. With this goal, the rotor is discr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012