Results 81 to 90 of about 2,322 (247)

Comparative Systematic Analysis of Gray Matter Biophysical Models on a Public Dataset

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Biophysical models of diffusion tailored to characterize gray matter (GM) microstructure are gaining traction in the neuroimaging community. NEXI, SMEX, SANDI, and SANDIX represent recent efforts to account for different microstructural features, such as soma contributions and inter‐compartment exchange, in the diffusion MRI (dMRI ...
Santiago Mezzano, Quentin Uhl, Tommaso Pavan, Jasmine Nguyen‐Duc, Hansol Lee, Susie Huang, Ileana Jelescu   +6 more
wiley   +1 more source

Variable Dimensional Bayesian Method for Identifying Depth Parameters of Substation Grounding Grid Based on Pulsed Eddy Current

Energies
The substation grounding grid, as the primary path for fault current dissipation, is crucial for ensuring the safe operation of the power system and requires regular inspection.
Xiaofei Kang, Zhiling Li, Jie Hou, Su Xu, Yanjun Zhang, Zhihao Zhou, Jingang Wang   +6 more
doaj   +1 more source

Generative MR Multitasking With Complex‐Harmonic Cardiac Encoding: Bridging the Gap Between Gated Imaging and Real‐Time Imaging

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a unified image reconstruction framework that bridges real‐time and gated cardiac MRI, including quantitative MRI. Methods We introduce generative multitasking, which learns subject‐ and dataset‐specific implicit neural temporal bases from sequence timings and an interpretable latent space for cardiac and respiratory motion.
Xinguo Fang, Anthony G. Christodoulou
wiley   +1 more source

Characterization of Multi-Layer Rolling Contact Fatigue Defects in Railway Rails Using Sweeping Eddy Current Pulse Thermal-Tomography

Applied Sciences
Railways play a pivotal role in national economic development, freight transportation, national defense, and regional connectivity. The detection of rolling contact fatigue (RCF) defects in rail tracks is essential for railway safety and maintenance. Due
Hengbo Zhang, Shudi Zhang, Xiaotian Chen, Yingying Li, Yiling Zou, Yizhao Zeng   +5 more
doaj   +1 more source

Combined ADC and T2 Mapping in the Prostate Using a 3D Reduced FOV Sequence

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a 3D reduced FOV sequence for combined ADC and T2 mapping in the prostate in a single scan. Methods A 3D ADC and T2 mapping reduced FOV acquisition is enabled using T2 and diffusion preparation modules with slab‐selective tip‐down pulses and magnitude stabilizer gradients.
Yannik Ott, Sarah McElroy, Raphael Tomi‐Tricot, Carolyn Horst, Patricia A. Gutierrez, Rahul Khamar, Omar Darwish, Vicky Goh, Radhouene Neji   +8 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, EarlyView.
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

Study on the Effect of Metal Mesh on Pulsed Eddy-Current Testing of Corrosion under Insulation Using an Early-Phase Signal Feature. [PDF]

Materials (Basel), 2023
Chen H, Xu Z, Zhou Z, Jin J, Hu Z.
europepmc   +1 more source

Human In Vivo Validation of Frequency‐Dependent QTI

Magnetic Resonance in Medicine, EarlyView.
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

Application of Pulsed eddy current technique to stress and residual stress measurement [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2014
Stress and residual stress are the main problems in the operating performance of materials. They are the principal causes of material failure and can affect life time of component. However measurement or predictions of them are typically difficult.
Abbas Habibalahi, M. S. Safizadeh
doaj  

Nondestructive Testing of Local Incomplete Brazing Defect in Stainless Steel Core Panel Using Pulsed Eddy Current. [PDF]

Materials (Basel), 2022
Xu Z, Chen H, Qu Z, Zhu C, Wang X.
europepmc   +1 more source