Results 11 to 20 of about 7,646,007 (306)
Spectral curves and W-representations of matrix models
Journal of High Energy Physics, 2023 We explain how the spectral curve can be extracted from the W $$ \mathcal{W} $$ -representation of a matrix model. It emerges from the part of the W $$ \mathcal{W} $$ -operator, which is linear in time-variables.
A. Mironov, A. Morozov
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Theory and assessment of an improved power spectral density estimator [PDF]
, 1990 This thesis is concerned with the processing of time domain signals received by a single sensor. An example of such signals is the radar return, which is used in one way or another to estimate the power spectral density a frequency representation of ...
Ali, Ali Abbas
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Differentiable Measures for Speech Spectral Modeling
IEEE Access, 2022 Autoregressive models for the envelope of speech power spectral densities (PSDs) are refined by the self-supervised spectral learning machine (S3LM) provided with differentiable spectral objective functions, including the Itakura-Saito divergence (ISD ...
Miguel Arjona Ramirez +3 more
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Frontiers in Astronomy and Space Sciences, 2017 Spectroscopic studies of active galactic nuclei (AGN) are powerful means of probing the physical properties of the ionized gas within them. In particular, near future observational facilities, such as the James Webb Space Telescope (JWST), will allow ...
Anna Feltre +9 more
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Resilience of the spectral standard model [PDF]
Journal of High Energy Physics, 2012 Abstract We show that the inconsistency between the spectral Standard Model and the experimental value of the Higgs mass is resolved by the presence of a real scalar field strongly coupled to the Higgs field. This scalar field was already present in the spectral model and we wrongly neglected it in our previous computations. It was
Chamseddine, Ali H., Connes, Alain
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Frontiers in Neuroscience, 2022 We review recent advances in using mathematical models of the relationship between the brain structure and function that capture features of brain dynamics. We argue the need for models that can jointly capture temporal, spatial, and spectral features of
Ashish Raj +2 more
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Prediction of soil organic matter and clay contents by near-infrared spectroscopy - NIRS [PDF]
Ciência Rural, 2020 : Among the soil constituents, special attention is given to soil organic matter (SOM) and clay contents, since, among other aspects, they are key factors to nutrient retention and soil aggregates formation, which directly affect the crop production ...
Bruno Pedro Lazzaretti +5 more
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Fourier Spectral Methods for Nonlocal Models [PDF]
Journal of Peridynamics and Nonlocal Modeling, 2020 Efficient and accurate spectral solvers for nonlocal models in any spatial dimension are presented. The approach we pursue is based on the Fourier multipliers of nonlocal Laplace operators introduced in a previous work. It is demonstrated that the Fourier multipliers, and the eigenvalues in particular, can be computed accurately and efficiently.
Bacim Alali, Nathan Albin
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Spectral Analysis of Fluoride and Nitride Phase in Secondary Aluminum Dross
, 2022 Secondary aluminum dross (SAD) is a hazardous waste produced in the electrolytic aluminum, aluminum processing, and aluminum recycling industries. The SAD produced from different processes has the characteristics of complex mineral phases and large ...
Li Shao-peng +5 more
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Study on Spectral Interference in the Determination of Vanadium by ICP-OES
, 2020 Vanadium is an important scarce resource and strategic metal, and often coexists with a variety of complex metals in the form of secondary mineral phases in nature.
Zhang Yi +7 more
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