Results 161 to 170 of about 3,330 (300)

Ultrafast oscillations in the human brain and their functional significance

Epilepsia, EarlyView.
Abstract Objective The upper frequency limit of human brain activity remains unknown. Using ultrahigh sampling rate (≥20 kHz) intracranial microelectroencephalography, this study aimed to systematically explore and quantitatively characterize brain field oscillations beyond the established high‐frequency oscillation range (>2 kHz), and to determine ...
Milan Brázdil, Vojtěch Trávníček, Jonathan Curot, Martin Pail, Monika Służewska‐Niedźwiedź, Robert Roman, Filip Plešinger, Emmanuel Barbeau, Michal Kucewicz, Petr Klimeš, Jan Cimbálník, Pavel Jurák, William C. Stacey, Gregory A. Worrell   +13 more
wiley   +1 more source

Real-time wavelet threshold denoising for laser speckle blood flow imaging. [PDF]

Sci Rep
Zhang L, Yang C, Liu D, Gao X, Li Z, Wang X, Zuo Z, He Z.   +7 more
europepmc   +1 more source

Subspace Acceleration for Efficient Nonlinear Water Wave Simulation

International Journal for Numerical Methods in Fluids, EarlyView.
We introduce an exponentially weighted subspace acceleration technique to reduce GMRES iterations for solving the Poisson equation with time‐dependent coefficients in nonlinear, dispersive free‐surface flows governed by the incompressible Navier‐Stokes equations. The method significantly reduces memory requirements and computational complexity compared
Rasmus Kleist Hørlyck Sørensen, Margherita Guido, Allan Peter Engsig‐Karup, Daniel Kressner   +3 more
wiley   +1 more source

Interpreting the Trispectrum as the Cross-Spectrum of the Wigner-Ville Distribution. [PDF]

IEEE Signal Process Lett
Kovach CK, Gliske SV, Radcliffe EM, Shipley S, Thompson JA, Abosch A.   +5 more
europepmc   +1 more source

Intraday Functional PCA Forecasting of Cryptocurrency Returns

Journal of Forecasting, EarlyView.
ABSTRACT We study the functional PCA (FPCA) forecasting method in application to functions of intraday returns on Bitcoin. We show that improved interval forecasts of future return functions are obtained when the conditional heteroscedasticity of return functions is taken into account.
Joann Jasiak, Cheng Zhong
wiley   +1 more source

A Frequency-Aware Self-Supervised Framework for MEMS-OCT Denoising. [PDF]

Biosensors (Basel)
Zhang G, Li Z, Zhao H, Peng Z, Xie H.
europepmc   +1 more source

Review of millimeter‐wave and terahertz near‐field synthetic aperture radar imaging technology

InfoScience, EarlyView.
Abstract This paper comprehensively reviews the development of millimeter‐wave (MMW) and terahertz (THz) near‐field imaging technologies, with an emphasis on the state of synthetic aperture radar (SAR)‐based imaging technologies. Near‐field imaging technologies are categorized into passive and active imaging modes, among which active imaging is favored
Qi Yang, Hongqiang Wang, Xu Chen, Xin Peng   +3 more
wiley   +1 more source

Large dataset on Fourier transform near infrared (FT-NIR) spectroscopy of green and roasted specialty coffee: Preprocessed infrared spectra and sensory scores for machine learning-based quality monitoring. [PDF]

Data Brief
Bahamón-Monje AF, Morales-Angulo EM, Collazos-Escobar GA, Gutiérrez-Guzmán N.   +3 more
europepmc   +1 more source

New Drain Spacing Formulas Using the Variational Iteration Method

Irrigation and Drainage, EarlyView.
ABSTRACT In this study, the drain spacing is computed using the variational iteration method (VIM) to the linearized Boussinesq equation. By applying at most two iterations of the VIM method under three different initial condition scenarios, three equations for drain spacing calculation were derived. These equations predict values of drain spacing that
George Kargas, Leonidas Mindrinos, Paraskevi Londra   +2 more
wiley   +1 more source

The Interplay Between Non-Instantaneous Dynamics of mRNA and Bounded Extrinsic Stochastic Perturbations for a Self-Enhancing Transcription Factor. [PDF]

Entropy (Basel)
Cabriel L, Caravagna G, de Franciscis S, Anselmi F, D'Onofrio A.   +4 more
europepmc   +1 more source