Results 31 to 40 of about 5,333 (191)

A spectral decomposition method to approximate DtN maps in complicated waveguides

CoRR, 2022
In this paper, we propose a new spectral decomposition method to simulate waves propagating in complicated waveguides. For the numerical solutions of waveguide scattering problems, an important task is to approximate the Dirichlet-to-Neumann map efficiently.
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On the adjoint of a symmetric operator [PDF]

, 2007
In general it is a non-trivial task to determine the adjoint S* of an unbounded symmetric operator S in a Hilbert or Krein space. We propose a method to specify S* explicitly which makes use of two boundary mappings that satisfy an abstract Green's ...
Meda S., Nelly Villamizar, CATALISANO, MARIA VIRGINIA, E. CARLINI, Matilde Lalín, Saito, Morihiko, Mauceri G., Fernandes de Oliveira, GM, Yuzvinsky, Sergey, Nero Budur, Vallarino, Maria, PICCIONE, P., Matthias Langer, Behrndt, Jussi, Frank Sottile (7161257), Morihiko Saito, Hynek Kovařík, PEREIRA, Antonio L., M. V. CATALISANO, Budur, Nero, Langer, Matthias, Elisa Postinghel, Stefano Meda, Lotoreichik, Vladimir, JAVALOYES, M. A., Catalisano M.V, Carlini, Enrico, Mauceri, G., Giancarlo Mauceri, Sergey Yuzvinsky, CATALISANO M. V., PEREIRA, Marcone C., Jussi Behrndt, MAUCERI, GIANCARLO, Wadim Zudilin, Veys, Willem, S. Meda, Detchat Samart, M. Vallarino, Catalisano, M.V., G. Mauceri, Frank Sottile, Elisa Postinghel (2887796), BILIOTTI, L., Meda, S., Kovarik, Hynek, Maria Vallarino, Nelly Villamizar (7161260)   +47 more
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Metric Based Upscaling for Partial Differential Equations with a Continuum of Scales [PDF]

, 2007
Numerical upscaling of problems with multiple scale structures have attracted increasing attention in recent years. In particular, problems with non-separable scales pose a great challenge to mathematical analysis and simulation.
Zhang, Lei
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Fermionic quantization of Hopf solitons [PDF]

, 2006
In this paper we show how to quantize Hopf solitons using the Finkelstein-Rubinstein approach. Hopf solitons can be quantized as fermions if their Hopf charge is odd.
Speight, J.Martin, Krusch, Steffen
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New Spectral Index and Machine Learning Models for Detecting Coffee Leaf Miner Infestation Using Sentinel-2 Multispectral Imagery

Agriculture, 2023
The coffee leaf miner (Leucoptera coffeella) is a key coffee pest in Brazil that can cause severe defoliation and a negative impact on the productivity.
Emerson Ferreira Vilela, Williams Pinto Marques Ferreira, Gabriel Dumbá Monteiro de Castro, Ana Luísa Ribeiro de Faria, Daniel Henrique Leite, Igor Arantes Lima, Christiano de Sousa Machado de Matos, Rogério Antonio Silva, Madelaine Venzon   +8 more
doaj   +1 more source

Articulatory Controllable Speech Modification Based on Statistical Inversion and Production Mappings [PDF]

, 2017
In this paper, we present an innovative way of utilizing the natural relationship between speech sounds and articulatory movements by developing an articulatory controllable speech modification system.
Kobayashi, Kazuhiro, Tobing, Patrick Lumban, Toda, Tomoki, Kazuhiro Kobayashi, Tomoki Toda, Patrick Lumban Tobing   +5 more
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Improved Relativistic Cycle-Consistent GAN With Dilated Residual Network and Multi-Attention for Speech Enhancement

IEEE Access, 2020
Generative adversarial networks (GANs) have been increasingly used as feature mapping functions in speech enhancement, in which the noisy speech features are transformed to the clean ones through the generators.
Yutian Wang, Guochen Yu, Jingling Wang, Hui Wang, Qin Zhang   +4 more
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Constrained Spectral Uplifting [PDF]

, 2021
Physically-based spectral rendering is becoming increasingly popular in both commercial and academic areas due to its ability to accurately simulate natural phenomena. However, the production of materials defined by their spectral properties is a tedious
Tódová, Lucia
core  

A Spectral–Spatial Method for Mapping Fire Severity Using Morphological Attribute Profiles

Remote Sensing, 2023
Fast and accurate fire severity mapping can provide an essential resource for fire management and studying fire-related ecological and climate change. Currently, mainstream fire severity mapping approaches are based only on pixel-wise spectral features.
Xiaoyang Ren, Xin Yu, Yi Wang 0021
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Equidistributing Mapping and Spectral Method for the Computation on Unbounded Domains

Applied Mathematics Letters, 1991
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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