Results 111 to 120 of about 150,011 (287)

Optimization Of Ann-Training Geometric Algorithm In Independent Component Analysis (Ica)

, 2014
One of the most actual tasks of information processing today is the problem of separating a mixture of several sources of signals. Moreover, the solution requires the on-line processing mode. With this task successfully cope artificial neural networks (ANN). But for stable operation of the system, the ANN require training on specific algorithms.
Yakubovsky Dmitry, Bormontov Evgeny Nikolaevich, Klukin Vladimir Ivanovich, Turikov Dmitry Aleksandrovich   +3 more
openaire   +1 more source

Aberrant Beta‐Band Network Alteration Preceding Freezing of Gait in Parkinson's Disease

Movement Disorders, EarlyView.
Abstract Background Freezing of gait (FOG) is a debilitating motor symptom observed in the advanced stages of Parkinson's disease (PD), characterized by an abrupt inability to initiate or continue forward walking. Whole‐brain functional connectivity analysis has shown promise in elucidating the underlying pathophysiology and identifying potential ...
Yanqiu Tian, Elie Matar, Shlomo Berkovsky, Simon J.G. Lewis   +3 more
wiley   +1 more source

Comparison of Different Independent Component Analysis Algorithms for Output-Only Modal Analysis

Shock and Vibration, 2016
From the principle of independent component analysis (ICA) and the uncertainty of amplitude, order, and number of source signals, this paper expounds the root reasons for modal energy uncertainty, identified order uncertainty, and modal missing in output-
Jianying Wang, Cheng Wang, Tianshu Zhang, Bineng Zhong   +3 more
doaj   +1 more source

Respiration Can Trigger Cerebrovascular Reactivity: A Novel Method to Quantify Cerebrovascular Resistance Dynamics Using Real‐Time Phase‐Contrast MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To directly quantify respiration‐driven cerebrovascular resistance dynamics (CRD) using a gas‐free MRI framework based on the internal‐to‐external artery carotid flow ratio (ratio_Q). Theory and Methods Two independent datasets (n = 10 and n = 17) were used to evaluate repeatability and to compare breathing conditions.
Pan Liu, Qiuting Wen, Kimi Owashi, Jean‐Marc Constans, Cyrille Capel, Olivier Balédent   +5 more
wiley   +1 more source

Double Asymmetric Spin Echo EPI (dASE‐EPI) Enables fMRI of the Entire Rat Brain at 9.4 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Development and evaluation of a double asymmetric spin echo planar imaging (dASE‐EPI) sequence to balance sensitivity to blood oxygenation level‐dependent (BOLD) contrast with mitigation of susceptibility‐induced intravoxel spin dephasing in ultra high‐field rodent brain imaging.
Kyle A. Johnson, Hanbing Lu, Jason W. Sidabras   +2 more
wiley   +1 more source

Cerebral in situ ischemic postconditioning: From bench to bedside and beyond

Neuroprotection, EarlyView.
This review explores the translational potential of in situ ischemic postconditioning in acute ischemic stroke. Preclinical and clinical evidence is summarized to highlight its promise as a neuroprotective strategy in the era of endovascular therapy.
Xiao Jiang, Wenbo Zhao, Yongbo Xu, Fanlei Meng, Ming Wei   +4 more
wiley   +1 more source

Estimating The Mixing Matrix In Underdetermined Sparse Component Analysis (Sca) Using Consecutive Independent Component Analysis (Ica)

, 2008
Publication in the conference proceedings of EUSIPCO, Lausanne, Switzerland ...
Babaie-Zadeh, Massoud, Javanmard, Adel, Jutten, Ch., Pad, Pedram   +3 more
openaire   +1 more source

Diagnostic Yield of Post‐Mortem Fetal Micro‐CT for Thoracic Abnormalities

Prenatal Diagnosis, EarlyView.
ABSTRACT Objective This study aims to identify the imaging findings specifically for thoracic anomalies in 1200 Micro‐CT cases, independent of whether the abnormality contributed to the main diagnosis or cause of death. Method We analyzed 1200 Micro‐CT scans in an unselected, consecutive cohort between 2017 and 2024 to identify thoracic anomalies ...
Ian C. Simcock, Audrey Lamouroux, Susan C. Shelmerdine, J. Ciaran Hutchinson, Neil J. Sebire, Owen J. Arthurs   +5 more
wiley   +1 more source

Diagnostic Yield of Post‐Mortem Fetal Micro‐CT for Abdominal and Pelvic Anomalies

Prenatal Diagnosis, EarlyView.
ABSTRACT Objective(s) This study aims to document the abdominal and pelvic anomalies that can be demonstrated using post mortem Micro‐CT, independent of whether the anomaly contributed to the main diagnosis or cause of death. Methods We retrospectively analyzed 1200 whole body post‐mortem fetal Micro‐CT scans in an unselected, consecutive cohort ...
Ian C. Simcock, Audrey Lamouroux, Susan C. Shelmerdine, J. Ciaran Hutchinson, Neil J. Sebire, Owen J. Arthurs   +5 more
wiley   +1 more source

Diagnostic Yield of Post‐Mortem Fetal Micro‐CT for Central Nervous System Abnormalities

Prenatal Diagnosis, EarlyView.
ABSTRACT Objectives This study demonstrates the central nervous system (CNS) abnormalities detected using fetal post‐mortem micro‐focus computed tomography (Micro‐CT), independent of whether the abnormality contributed to the main diagnosis or cause of death.
Ian C. Simcock, Audrey Lamouroux, Susan C. Shelmerdine, J. Ciaran Hutchinson, Neil J. Sebire, Owen J. Arthurs   +5 more
wiley   +1 more source