Zobrazeno 1 - 10
of 3 511
pro vyhledávání: '"Coelho, R"'
Autor:
Queiroz, A., Coelho, R.
This paper introduces a novel (HDAG - Harmonic Detection for Auditory Gain) method for speech intelligibility enhancement in noisy scenarios. In the proposed scheme, a series of selective Gammachirp filters are adopted to emphasize the harmonic compo
Externí odkaz:
http://arxiv.org/abs/2401.11829
We generalize to three dimensions (3D) a recently developed improved multi-component pseudopotential lattice Boltzmann method and analyze its applicability to simulate flows through realistic porous media. The model is validated and characterized via
Externí odkaz:
http://arxiv.org/abs/2207.01534
Autor:
Ariane da Silva Cardoso, Emilia Rahnemay Kohlman Rabbani, Alison Lopes da Silva, Mattheus Karryery Coelho R. G. de Sá, Eliana Barreto Monteiro, Mahmoud Shakouri
Publikováno v:
Frontiers in Built Environment, Vol 10 (2024)
Introduction: Improper disposal of mollusk shells has led to environmental issues worldwide. Given their primary composition of calcium carbonate, these shells have been studied for their potential use as aggregate in cement composites, offering an e
Externí odkaz:
https://doaj.org/article/2ff536a192164861b33fb0cd775cc61d
Autor:
Queiroz, A., Coelho, R.
This paper introduces a novel method to separate noisy speech into low or high frequency frames, in order to improve fundamental frequency (F0) estimation accuracy. In this proposal, the target signal is analyzed by means of the ensemble empirical mo
Externí odkaz:
http://arxiv.org/abs/2112.09896
Autor:
Zucatelli, G., Coelho, R.
This paper introduces the single step time domain method named HnH-NRSE, whihc is designed for simultaneous speech intelligibility and quality improvement under noisy-reverberant conditions. In this solution, harmonic and non-harmonic elements of spe
Externí odkaz:
http://arxiv.org/abs/2112.04949
Publikováno v:
Phys. Fluids 34, 023102 (2022)
Immiscible fluid displacement in porous media occurs in several natural and industrial processes. For example, during petroleum extraction from porous rock reservoirs, water is used to displace oil. In this paper, we investigate primary drainage and
Externí odkaz:
http://arxiv.org/abs/2111.08666
Autor:
Garcia, J., de la Luna, E., Sertoli, M., Casson, F., Mazzi, S., Stancar, Z., Szepesi, G., Frigione, D., Garzotti, L., Rimini, F., van Eester, D., Lomas, P., Sozzi, C., Aiba, R. N., Coelho, R., Frasinetti, L., Huijsmans, G., Liu, F.
New plasma regimes with high confinement, low core impurity accumulation and small Edge localized mode (ELMs) perturbations have been obtained close to ITER conditions in magnetically confined plasmas from the Joint European torus (JET) tokamak. Such
Externí odkaz:
http://arxiv.org/abs/2103.02679
Autor:
Queiroz, A., Coelho, R.
This paper proposes a time-domain method to improve speech intelligibility in noisy scenarios. In the proposed approach, a series of Gammatone filters are adopted to detect the harmonic components of speech. The filters outputs are amplified to empha
Externí odkaz:
http://arxiv.org/abs/2012.08227
Autor:
Farias, F., Coelho, R.
This letter proposes a novel blind acoustic mask (BAM) designed to adaptively detect noise components and preserve target speech segments in time-domain. A robust standard deviation estimator is applied to the non-stationary noisy speech to identify
Externí odkaz:
http://arxiv.org/abs/2008.09175
Autor:
Coelho, R. O., Goncalves, V. P.
In this letter we present, for the first time, the results for the photoproduction of massive gauge bosons in proton -- proton, proton -- Lead and Lead -- Lead collisions at the Large Hadron Collider (LHC), High -- Energy LHC (HE -- LHC) and Future C
Externí odkaz:
http://arxiv.org/abs/2002.10713