Results 111 to 120 of about 451 (255)

Arc‐ZTE: Continuously‐Slewed Zero‐TE Imaging With Incoherent Temporal Sampling for Near‐Silent Dynamic MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To enable flexible dynamic and DCE MRI with low acoustic noise and high spatiotemporal resolution using zero echo time (ZTE) imaging. Methods This work proposes Arc‐ZTE, a technique in which the readout gradients of ZTE are continuously‐slewed to form arcs in k‐space that are sequentially rotated to yield an incoherent trajectory ...
Shreya Ramachandran, Tobias C. Wood, Gavin Zhang, Ali B. Syed, Shreyas S. Vasanawala, Michael Lustig   +5 more
wiley   +1 more source

SimulScan and Partial Least Squares: Visualizing Swallowing Through Functional and Dynamic Imaging Correlations

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Swallowing involves the precise coordination of muscles and brain areas and can be disrupted in a variety of neurological conditions. Current methods to visualize swallowing cannot examine both the biomechanics and brain activity associated with specific swallowing events.
Bradley P. Sutton, Anthony Bosshardt, Ching‐Hsuan Peng, Ololade T. Adetula, Jiyoon Kim, Riwei Jin, Vaishnavi Krishna, William G. Pearson Jr., Zhongming Liu, Georgia A. Malandraki   +9 more
wiley   +1 more source

A Simplified High Frequency Model of Interleaved Transformer Winding

Research Journal of Applied Sciences, Engineering and Technology, 2015
K. Usha, S. Usa
openaire   +1 more source

The Potential for Absolute Temperature Imaging Based on Brain Metabolites Using an FID‐Shifting Approach in Gradient Echo Planar Spectroscopic Imaging (GREPSI)

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To implement and evaluate an efficient method for absolute temperature measurement using a gradient echo implementation of the echo planar spectroscopic imaging (EPSI) sequence. Methods The gradient echo EPSI sequence (GREPSI) utilizes an oscillating readout gradient together with continuous signal readout after slab selective ...
Dennis L. Parker, Henrik Odéen, Peyton Wong, Seong‐Eun Kim, Wesley Judd, Duane D. Blatter   +5 more
wiley   +1 more source

Multi‐Contrast Human Brain CEST MRI at 11.7 T: First In Vivo Demonstration

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT PurposeTo implement and evaluate chemical exchange saturation transfer (CEST) at ultra‐high field on a whole‐body 11.7 T scanner using parallel transmission (pTx). MethodsTailored pTx CEST saturation pulses were optimized to achieve a spatially uniform target B1+ while satisfying SAR and power constraints either defined by conservatively ...
Camélia Ressam, Joseph Brégeat, Alfredo L. Lopez Kolkovsky, Alexis Amadon, Alexandre Vignaud, Aurélien Massire, Son Chu, Shajan Gunamony, Nicolas Boulant, Vincent Gras, Franck Mauconduit, Luisa Ciobanu   +11 more
wiley   +1 more source

Design and control of a multicell interleaved converter for a hybrid photovoltaic-wind generation system

Conception et commande d'un convertisseur multicellulaire entrelacé pour un système de génération hybride éolienne / photovoltaïque La solution pour l'énergie génératrice issue de sources non polluantes configure un problème mondial, indéterminé, complexe et progressif.
openaire   +3 more sources

Feasibility and SNR Performance of Hyperpolarized 129Xe Gas Exchange Imaging Using a Balanced SSFP Sequence

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a balanced SSFP (bSSFP) sequence for pulmonary 129Xe dissolved‐phase imaging based on a previously described double‐echo sequence facilitating separation into red blood cell and membrane signals, to test its feasibility and compare its SNR performance and imaging results to an analogous FLASH sequence.
Agilo L. Kern, Marcel Gutberlet, Jens M. Hohlfeld, Frank Wacker, Jens Vogel‐Claussen   +4 more
wiley   +1 more source

Embedding Fiber Segment Interferometry for Localization of Defects in Composite Structures

Polymer Composites, EarlyView.
Graphical representation of composite structures with embedded fiber optic sensors for structural health monitoring, enabling strain measurement and damage localization under mechanical loading. ABSTRACT In the area of structural health monitoring (SHM), embedding strain sensors into smart composites is a key strategy for detecting failures arising ...
Shiva Mohammadkarimi, Christoph Hemeling, Thomas Kissinger, Florian Puch   +3 more
wiley   +1 more source

A Review of Mechanical Reinforcement and Piezoresistive Self‐Sensing in Carbon Nanotube Fiber Composites

Polymer Composites, EarlyView.
PSPP‐TRL mapping of CNT‐modified CFRP literature, with four recurring confusions resolved and five scale‐up problems quantified. ABSTRACT Carbon nanotube‐modified fiber composites are often presented as a route to stronger, tougher, and self‐sensing structural materials.
Sanan H. Khan
wiley   +1 more source

Research on boost conversion of SiC-based laser power supply for aerospace applications. [PDF]

Sci Rep
Zhang X, Wang Y, Shi B, Liu Y.
europepmc   +1 more source