Buscar
Mostrando ítems 1-10 de 324
Pair partitioning in time reversal acoustics
(Asociación Argentina de Mecánica Computacional, 2007-10)
Time reversal of acoustic waves can be achieved efficiently by the persistent control of excitations in a finite region of the system. The procedure, called Time Reversal Mirror, is stable against the inhomogeneities of ...
Evaporating primordial black holes as varying dark energy
(Elsevier, 2020)
If light enough primordial black holes (PBH) account for dark matter, then its density decreases with time as they lose mass via Hawking radiation. We show that this time-dependence of the matter density can be formulated ...
Cross-frequency couplings in non-sinusoidal dynamics of interacting oscillators: Acoustic estimation of the radial position and spatial stability of nonlinear oscillating bubbles
(Elsevier Science, 2019-03)
In this work, the analysis of cross-frequency couplings (CFC) is introduced in the context of nonlinear acoustics related to the dynamics of bubble(s)-resonator systems. The results obtained from experiments specifically ...
Cochlear microphonic responses to acoustic clicks in guinea pig and their relation with microphonic responses to pure tones
(1983)
Cochlear microphonic (CM) responses to acoustic transient stimuli were studied at the three more basal turns of the cochlea in the guinea pig. The responses to rarefaction and condensation pressure pulses of less than ...
Desenvolvimento de um sistema de incineração de resíduos sólidos para utilização com combustão pulsante
(Universidade Estadual Paulista (Unesp), 2005-11)
Este trabalho tem a finalidade de investigar a incineração de resíduos sólidos na presença de ondas acústicas para incrementar o processo de combustão. Para tanto foi projetado e construído um forno rotativo para incineração ...
Testing modified gravity theory (MOG) with type Ia supernovae, cosmic chronometers and baryon acoustic oscillations
(IOP Publishing, 2020-07-06)
We analyse the MOdified Gravity (MOG) theory, proposed by Moffat, in a cosmological context. We use data from Type Ia Supernovae (SNe Ia), Baryon Acoustic Oscillations (BAO) and Cosmic Chronometers (CC) to test MOG ...
The influence of the flame structure on the combustion oscillations in a cylindrical chamber
(2006-12-27)
An experimental study has been conducted with the objective of investigating the effects of the flame structure in the combustion oscillation conditions into a laboratorial scale cylindrical chamber. The experiments were ...
The influence of the flame structure on the combustion oscillations in a cylindrical chamber
(2006-12-27)
An experimental study has been conducted with the objective of investigating the effects of the flame structure in the combustion oscillation conditions into a laboratorial scale cylindrical chamber. The experiments were ...