Results 91 to 100 of about 447,860 (319)
Hilbert spaces built on a similarity and on dynamical renormalization
, 2005 We develop a Hilbert space framework for a number of general multi-scale problems from dynamics. The aim is to identify a spectral theory for a class of systems based on iterations of a non-invertible endomorphism. We are motivated by the more familiar
Dutkay, Dorin Ervin +1 more
core +5 more sources
European Eating Disorders Review, EarlyView.ABSTRACT Objective To investigate longitudinal changes in alexithymia and emotion recognition among adolescents and emerging adults with anorexia nervosa (AN) and whether these domains can independently predict the long‐term eating disorder (ED) outcome.
Michael Zeiler +12 more
wiley +1 more source
Bolt Anchorage Quality Levels Classification Method Based on HO‐VMD‐CNN‐BiLSTM
Energy Science &Engineering, EarlyView.First, the original ultrasound‐guided wave signal data is decomposed into multiple sub‐signals with varying frequencies using VMD to capture the multi‐scale features within the data. Second, the decomposed and noise‐reduced signal, processed by the HO‐VMD algorithm, is input into the CNN for further feature extraction through convolution and pooling ...
Fan Kesong +7 more
wiley +1 more source
How do you make a time series sing like a choir? Using the Hilbert-Huang transform to extract embedded frequencies from economic or financial time series [PDF]
The Hilbert-Huang transform (HHT) was developed late last century but has still to be introduced to the vast majority of economists. The HHT transform is a way of extracting the frequency mode features of cycles embedded in any time series using an ...
Crowley, Patrick M
core
Open Source for Raman Spectroscopy Data Harmonization
Journal of Raman Spectroscopy, EarlyView.Open‐source MIT–licensed Python package ramanchada2 collects existing and novel algorithms for generating Raman spectra, reading, visualizing, and processing, with emphasis on instrument calibration. It supports multiple input formats or experimental and simulated spectra and can generate synthetic spectra for data augmentation and benchmarking.
G. Georgiev +9 more
wiley +1 more source
Comparison between traditional FFT and marginal spectra using the Hilbert-Huang transform method for the broadband spectral analysis of the EEG in healthy humans [PDF]
, 2020 Eduardo Arrufat‐Pié +5 more
openalex +1 more source
How hard is the euro are core? An evaluation of growth cycles using wavelet analysis [PDF]
Using recent advances in time-varying spectral methods, this research analyses the growth cycles of the core of the euro area in terms of frequency content and phasing of cycles.
Crowley , Patrick +2 more
core
Laser &Photonics Reviews, EarlyView.Fully exploiting the broad untapped terahertz spectrum necessitates extending the bandwidth of practical guided‐wave systems. This work introduces a substrateless quasi‐optical integration platform to meet this need. Classical optical principles going back to the time of Michelson are adapted to a planar, micro‐machined, monolithic‐silicon platform ...
Daniel Headland +4 more
wiley +1 more source
Quantum ground state isoperimetric inequalities for the energy spectrum of local Hamiltonians [PDF]
, 2017 We investigate the relationship between the energy spectrum of a local Hamiltonian and the geometric properties of its ground state. By generalizing a standard framework from the analysis of Markov chains to arbitrary (non-stoquastic) Hamiltonians we are
Bowen, John, Crosson, Elizabeth
core +1 more source
Laser &Photonics Reviews, EarlyView.A mid‐infrared frequency‐swept source operating is presented at 50 MScans s−1 using frequency down‐conversion of time‐stretched 1.5‐µm pulses generated from an Er‐doped mode‐locked fiber laser. The developed source enables high‐resolution gas‐phase MIR spectroscopy with a bandwidth of 15 cm−1 and a resolution of 0.086 cm−1 at a measurement rate of 50 ...
Makoto Shoshin +4 more
wiley +1 more source