Results 181 to 190 of about 29,669 (249)

Interaction With Surface Spins as a Contribution to Nuclear Magnetic Relaxation of Liquids Adsorbed in Mesoporous Materials

Magnetic Resonance in Chemistry, EarlyView.
Liquids at silica interfaces experience demixing as a consequence of their respective polarity. The distribution of liquids and their primary relaxation contributions are studied by surface modification with OD and radical moieties, respectively. ABSTRACT NMR relaxation of liquids in the presence of solid interfaces, such as silica gel or porous glass,
Carlos Mattea, Hannah Leptin, Moritz Schmidt, Siegfried Stapf   +3 more
wiley   +1 more source

Enhancing biomedical signals through genetic algorithm optimized Exponentiated transmuted weibull denoising techniques. [PDF]

Sci Rep
Sayedelahl MA, Farouk RM, Adam AM.
europepmc   +1 more source

Group‐Patch Joint Compression: Compressing Dynamic B0 and Static RF Spatial Modulations Across k‐Space Subregion Groups for Highly Accelerated MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To accelerate MRI further, rapid B0 field modulations can be applied during oversampled readout to capture additional physical information, as in Wave‐CAIPI/FRONSAC/local B0 coils modulation techniques. These methods, however, turn the Fourier readout into a non‐Fourier‐encoded dimension that cannot be reconstructed by FFT, posing ...
Rui Tian, Klaus Scheffler
wiley   +1 more source

Outage performance of UAV-NOMA networks over rician faded channel with hardware impairments, channel estimation error, and SIC imperfection. [PDF]

PLoS One
Thaherbasha S, Parveen SDN, Medasani S, Turpati S, Addepalli T, Sharma M, Pathan S.   +6 more
europepmc   +1 more source

A Realistic In Silico Brain Phantom for Quantifying Susceptibility Anisotropy‐Induced Error in Susceptibility Separation

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To create a realistic in silico brain phantom for positive and negative magnetic susceptibility that incorporates susceptibility anisotropy, enabling the evaluation of how susceptibility anisotropy influences susceptibility separation algorithm performance.
Daniel Ridani, Benjamin De Leener, Eva Alonso‐Ortiz   +2 more
wiley   +1 more source

Low-Altitude Target Localization Method Based on Exogenous Radar with Multi-Base Station and 5G SSB Signals. [PDF]

Sensors (Basel)
Xu Y, Tu G, Zhang L, Zhou Y, Xiong M, Li Y.   +5 more
europepmc   +1 more source

Real‐Time Targeted Slice Reacquisition for Motion‐Corrupted Fetal Diffusion MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop and evaluate a real‐time framework for targeted slice‐level reacquisition in fetal diffusion MRI. Methods A DW‐SE‐EPI sequence was modified to support independent diffusion preparation per slice. A pathology‐robust nnU‐Net segmentation network, updated from a previously published baseline (V1) using pathological fetal cases ...
Jordina Aviles Verdera, Sara Neves Silva, Susanne Schulz‐Heise, Sarah McElroy, Mary Rutherford, Joseph V. Hajnal, Raphael Tomi‐Tricot, Jana Hutter   +7 more
wiley   +1 more source

Two-Dimensional DOA Estimation of Coherent Sources Based on Uniform Linear Electromagnetic Vector Sensor Array. [PDF]

Sensors (Basel)
Zhang J, Lan X, Wang X.
europepmc   +1 more source

Revisiting Inductively Coupled Wireless Coils in MRI: Mitigating Over‐Coupling With Preamplifiers

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Inductively coupled coils enhance local MRI sensitivity, yet strong coupling with nearby primary coils typically causes resonance splitting and impedance mismatch, which are traditionally considered detrimental. This work investigates why inductively coupled coils can still function effectively even in the presence of severe coupling ...
Ming Lu, John C. Gore, Xinqiang Yan
wiley   +1 more source