Results 91 to 100 of about 21,702 (292)

The finite Hilbert transform in weighted spaces [PDF]

, 1996
The mapping properties of the finite Hilbert-transform (respectively the Hilbert transform on the half axis) are studied. Invertibility, surjectivity, injectivity and bounded ness from below of the transform are characterised in general weighted spaces ...
Kari Astala, Lassi Päivärinta, Eero Saksman   +2 more
core   +1 more source

“It Was Something Outside of Me, Controlling Me”: Young People's Perspectives on the Role of Externalisation in Recovery From Anorexia Nervosa

Journal of Clinical Psychology, EarlyView.
ABSTRACT Objective Externalisation is a therapeutic approach that separates the problem from the person, widely used in treating anorexia nervosa (AN) to help young people understand their illness and to collaborate with their families against the disorder.
Alex Skolnick, Lucinda J. Gledhill, Rosie Satherley   +2 more
wiley   +1 more source

Classification and Identification of Underwater Target based on Sound Propagation

نشریه مهندسی دریا, 2018
This paper investigates an underwater noise target classification algorithm in order to identify vessels in shallow water. To this aim the Hilbert Huang transform has been used to extract features in order to be used in a classifier.
Hassan Sayyaadi, Mohammad Saeed Seif, Aliasghar Abniki   +2 more
doaj  

Neurophysiological evidence for goal‐directed attentional control dysfunction in generalized anxiety disorder

Journal of Intelligent Medicine, EarlyView.
Abstract Attentional control theory posits that anxiety disrupts goal‐directed attentional system; however, its neurophysiological mechanisms in generalized anxiety disorder (GAD) remain unclear. This study investigated two core operations of the goal‐directed attentional system in GAD—inhibition and shifting—by characterizing their behavioral and ...
Xinyu Hao, Xiaoya Liu, Danfeng Yuan, Chunyu Liang, Xiangyun Yang, Bo Zhang, Zhanjiang Li, Shuang Liu   +7 more
wiley   +1 more source

On Solving Modified Time Caputo Fractional Kawahara Equations in the Framework of Hilbert Algebras Using the Laplace Residual Power Series Method

Fractal and Fractional
In this work, we first develop the modified time Caputo fractional Kawahara Equations (MTCFKEs) in the usual Hilbert spaces and extend them to analogous structures within the theory of Hilbert algebras.
Faten H. Damag, Amin Saif
doaj   +1 more source

Rolling Bearing Fault Diagnosis Based on an Improved HTT Transform

Sensors, 2018
When rolling bearing failure occurs, vibration signals generally contain different signal components, such as impulsive fault feature signals, background noise and harmonic interference signals.
Bin Pang, Guiji Tang, Tian Tian, Chong Zhou   +3 more
doaj   +1 more source

A Quadrature Rule for the Finite Hilbert Transform Via Midpoint Type Inequalities [PDF]

, 2003
A quadrature rule for the finite Hilbert transform via midpoint type inequalities is obtained.
Dragomir, Sever S, Baxter, Gregory W, Dragomir, Nicoleta, Farrell, Peter M   +3 more
core  

Phase recovery from interference fringes by Hilbert transform [PDF]

, 2009
This paper proposes the use of the Hilbert transform for analysis of fringe patterns, which are obtained in Michelson Interferometer. The fringe patterns are evaluated by Continuous wavelet transform and Hilbert transform algorithms to obtain phase map
H. Gülay Birkök, Ahmet Emir, Emir, Ahmet, Birkok, H. Gulay, Dursun, Ali, Ali Dursun, Sarac, Zehra, Zehra Saraç   +7 more
core   +1 more source

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

Laser &Photonics Reviews, EarlyView.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil, Rajshree Swarnkar, Jonas L. Moos, Sebastian Töpfer, Sergio Tovar‐Pérez, Jorge Fuenzalida, Markus Gräfe   +6 more
wiley   +1 more source

Loop Quantum Photonic Chip for Coherent Multi‐Time‐Step Evolution

Laser &Photonics Reviews, EarlyView.
A loop quantum photonic chip (Loop‐QPC) enabling efficient multi‐step quantum simulation in a single run is demonstrated. Combining recirculating loops with cycle‐or‐measure control, Loop‐QPC eliminates repeated reprogramming and reduces loss. Experimental demonstration of three‐step unitary evolution confirms high‐fidelity operation, showcasing the ...
Yuancheng Zhan, Hui Zhang, Rebecca Erbanni, Andreas Burger, Lingxiao Wan, Xudong Jiang, Sanghoon Chae, Ai Qun Liu, Dario Poletti, Leong Chuan Kwek   +9 more
wiley   +1 more source