Results 231 to 240 of about 375,845 (279)

Phase‐Pole‐Free Images and Smooth Coil Sensitivity Maps by Regularized Nonlinear Inversion

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Phase singularities are a common problem in image reconstruction with auto‐calibrated sensitivities due to an inherent ambiguity of the estimation problem. The purpose of this work is to develop a method for detecting and correcting phase poles in non‐linear inverse (NLINV) reconstruction of MR images and coil sensitivity maps ...
Moritz Blumenthal, Martin Uecker
wiley   +1 more source

Joint Inversion of Radionuclide Production Rate Data and Thermoremanent Magnetic Records over the Holocene. [PDF]

Sol Phys
Schanner MA, Nilsson A, Muscheler R.
europepmc   +1 more source

Optimization of Diffusion MRI With Consideration of the Signal Decay in Biological Tissues

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Devising methodology to characterize and optimize acquisition schemes for biological tissues, such as the prostate, that produce model‐based synthetic diffusion‐weighted images and derived model parameters with predictable SNR improvement. Methods The averaging effect (AE) in synthetic diffusion‐weighted images obtained through fitting
Stefan Kuczera, Stephan E. Maier
wiley   +1 more source

Quadratic Euler characteristic of symmetric powers of curves. [PDF]

Manuscr Math
Bröring LF, Viergever AM.
europepmc   +1 more source

Fast Numerical Solvers for Parameter Identification Problems in Mathematical Biology. [PDF]

J Sci Comput
Benková K, Pearson JW, Ptashnyk M.
europepmc   +1 more source

An Improved Two-Stage RARE Algorithm for Mixed Far-Field and Near-Field Source Localization Under Unknown Mutual Coupling with the Uniform Linear Sensor Array. [PDF]

Sensors (Basel)
Chen K, Deng K, Zhang J.
europepmc   +1 more source

Learning based prediction of cuttings concentration for enhancing hole cleaning efficiency in eccentric and deviated wells. [PDF]

Sci Rep
Saad MY, Salem AM, Ibrahim AF, Mahmoud O.   +3 more
europepmc   +1 more source

Towards efficient solutions: A novel approach to quadratic nonlinearity in boundary value problems. [PDF]

PLoS One
Kouser S, Ur Rehman S, Elmasry Y, Azeem Khan W, Ahmad F, Khan H.   +5 more
europepmc   +1 more source

Stable approach based diagonal recurrent quantum neural networks for identification of nonlinear systems. [PDF]

Sci Rep
Khalil H, Elshazly O, Shaheen O.
europepmc   +1 more source