Results 111 to 120 of about 9,677,910 (224)

Intrinsic pH chemosensitivity of acutely dissociated medullary serotonergic and retrotrapezoid neurones

The Journal of Physiology, EarlyView.
Abstract figure legend Central respiratory chemoreceptors (CRCs) are critical for maintaining normal systemic levels of pH and PCO2. A CRC must respond to pH via intrinsic mechanisms. Here we quantified intrinsic chemosensitivity of medullary 5‐HT neurones and retrotrapezoid nucleus (RTN) neurones using acute dissociation.
Yuanming Wu, Eduardo Bravo, George Bradley Richerson   +2 more
wiley   +1 more source

Harmonic and pulsed eddy current testing methods as tools for surface and subsurface defect evaluation

, 2018
In most publications eddy current testing (ECT) methods are said to be suitable for surface defects up to several millimeters. This paper aims to evaluate the detection capabilities of eddy current testing based on two examples of modern approach. One of
Slobodník, Karel, Behúň, Lukáš
core   +1 more source

Electrotactile frequency perception over multiple stimulation sites does not use a winner‐takes‐all mechanism

The Journal of Physiology, EarlyView.
Abstract figure legend Peripheral tactile afferents exhibit a wide range of response patterns to a pure frequency vibratory stimulus. Some afferents, including those remote from the stimulus site, fire at lower rates as they do not respond to every vibration cycle of the stimulus.
Alwin So, Hiroyuki Kajimoto, Edward N. Crawford, Richard M. Vickery, Ingvars Birznieks   +4 more
wiley   +1 more source

Active Damped Oscillation Calibration Method for Receiving Coil Transition Process Based on Early Acquisition of Pulsed Eddy Current Testing Signal

Energies
As a common signal sensing device in pulsed eddy current detection, coil sensors often have parameter offset problems in practical applications. The error in the receiving coil parameters will have a great impact on the early signal.
Fei Wang, Su Xu, Liqun Yin, Xiaobao Hu, Ming Ma, Bin Jia, Jingang Wang   +6 more
doaj   +1 more source

Pulsed eddy current system for dynamic inspection of defects

, 2004
Pulsed Eddy Current (PEC) techniques have been investigated and applied for field applications. On-line inspection is essential for many manufacturing processes and other NDE applications.
Tian, G.Y., Sophian, Ali, Taylor, D., Rudlin, J.   +3 more
core   +1 more source

Local eddy current measurements in pulsed fields

, 2008
This work presents new eddy current measurements in pulsed fields. A commercial point pick-up coil is used to detect the induction signal along the radius of Cu and Al samples with cylindrical shape and diameters between 5 and 35 mm.
Espina-Hernández, J.H., Grössinger, R., Hallen, J.M.   +2 more
core   +1 more source

Localized Quadratic RF Encoded Spin‐Echo With Spiral‐PRIME Reconstruction: A Practical Alternative to 3D FSE for High‐Resolution Volumetric Brain MRI

Magnetic Resonance in Medicine, Volume 96, Issue 6, Page 2615-2628, December 2026.
ABSTRACT Purpose To extend localized quadratic (LQ) RF encoded spin‐echo imaging with acquisition and reconstruction strategies that improve efficiency and artifact robustness, positioning it as a practical alternative to 3D FSE for high‐resolution volumetric brain MRI.
Guruprasad Krishnamoorthy, Julia V. Velikina, James G. Pipe   +2 more
wiley   +1 more source

Comparative Performance Analysis of an Open Source Motion‐Compensated Cardiac Diffusion Sequence Across Different MRI Systems and Gradient Strengths—A Pilot Study

Magnetic Resonance in Medicine, Volume 96, Issue 6, Page 2629-2641, December 2026.
ABSTRACT Purpose To validate the performance of an open‐source cardiac diffusion sequence framework and to investigate hardware‐based performance differences. Methods Three second order motion compensated sequence files were compiled using Pulseq and applied across different MRI systems to image five volunteers.
Eric Arbes, Ariel Hannum, Johannes Fischer, Qingping Chen, Sebastian Littin, Alexander Maier, Michael Bock, Simon Reiss   +7 more
wiley   +1 more source

Human In Vivo Validation of Frequency‐Dependent QTI

Magnetic Resonance in Medicine, Volume 96, Issue 6, Page 2642-2659, December 2026.
ABSTRACT Purpose The aim of this work is to investigate if q‐space trajectory imaging (QTI) waveforms can be designed to probe QTI metrics at a single centroid frequency under realistic experimental conditions for in vivo human brain imaging. Methods Realistic diffusion encoding waveforms based on double‐rotation gradient waveform and magic‐angle ...
Svenja Niesen, Marten Veldmann, Ali Ajouz, Tony Stöcker   +3 more
wiley   +1 more source

Solution of Direct Eddy Current Testing Problems for Media with Axisymmetric Cylindrical Flaws

In the paper we present solutions of several eddy current testing problems with surface or subsurface cylindrical flaws.
Koliškina, Valentīna, Volodko, Inta
core